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diff --git a/vendor/x11iraf/cdl/doc/RELEASE-1.6.NOTES b/vendor/x11iraf/cdl/doc/RELEASE-1.6.NOTES
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+
+	      README FOR CLIENT DISPLAY LIBRARY (CDL) V1.6
+			 Updated March 1998
+
+--------------------------------------------------------------------------
+21 Feb 1997	Initial V1.0 Release
+04 Mar 1998	V1.6 Upgrade Release
+
+See also the post-distribution notes at the end of this file.  These are
+continually updated after the release as any problems are encountered.
+--------------------------------------------------------------------------
+
+
+1.  INTRODUCTION
+================
+	The Client Display Library (CDL) is a host interface for C or
+Fortran programs allowing them to display images or overlay graphics to
+display servers such as XImtool or SAOimage / SAOtng.  High-level
+procedures allow IRAF or FITS images to be displayed simply, other
+routines permit access to all other server functions (e.g. cursor and
+image readback, frame selection, etc).  The library also features a number
+of functions for doing image overlay graphics; supported graphics
+primitives include numerous point shapes, lines, circles, ellipses,
+polygons, annular shapes, and text.
+
+
+1.1  WHAT'S NEW IN THIS RELEASE
+-------------------------------
+
+	The initial CDL release provided most of the functionality required
+for image display or graphic overlay clients, since then a number of new
+features have crept in that were needed.  The V1.6 version number reflects
+the stop-n-start nature of this work, more work is planned but a release of
+the new version is long overdue.  New features include:
+
+	- Support for the new V2.11 IRAF OIF image format
+	- A prototype SPP language binding
+	- Full ANSI C function prototype support
+	- Support for variable line widths
+	- A selection of "dashed" line styles for polyline/polygon markers
+	- A selection of text fonts including
+		ROMAN		FUTURA		TIMES
+		GREEK		BOLD
+	- Sub/Superscripting text
+	- In-line font changes
+	- Support for text line widths
+	- A "virtual" display server that may also be used as a 'proxy'
+	  server providing an image display "tee" functionality
+	- Numerous bug fixes
+
+See the CDL Reference Guide in the 'doc' subdirectory for details on new
+features.
+
+1.2  THINGS TO WATCH OUT FOR
+----------------------------
+
+	The V1.6 release contains two small interface changes which may
+cause problems, otherwise the new library should work seemlessly with
+existing applications.  The interface changes involve the routines
+
+	cdl_readIRAF()	    and		cdl_readFITS()
+
+These routines now have an extra 'title' argument to return the title string
+from the image which allows the hi-level display routines to include this
+information in the WCS string.   This argument is a character pointer and
+affects the Fortran and SPP bindings as well.  See the Reference Guide for
+additional information.
+
+	New features such as line styles and text fonts have been well-tested
+but the use of ANSI prototypes and the SPP binding have only been minimally
+exercised.  Anyone finding a problem with these features should send a bug
+report the iraf@noao.edu help address, we can probably provide a quick fix
+for most bugs.
+
+
+2.  Documentation and Example Applications
+==========================================
+
+	Documentation for the package is located in the 'doc' subdirectory
+as both TROFF source and Postscript.  The reference manual covers each of
+the routines available in the library and contains a summary of the interface
+as well as code samples.  
+	Working programs are also included in the 'examples' subdirectory. 
+Users may find it easier to start by modifying these programs for a particular
+need (e.g. add a new command for marking, an option for overlaying points
+from a file, etc) before starting an application from scratch to become fam-
+iliar with the library.
+	Fortran programmers should consult the reference manual for information
+on array passing in the CDL.  In particular, while the CDL can be used from
+IMFORT programs special care needs to be taken when displaying arrays read
+using the IMFORT routines.
+
+
+3.  Building the Package
+========================
+
+	The CDL package relies on the Imake facility to generate the make-
+files needed to compile the package.  To build the CDL use the following
+command:
+
+	% xmkmf				# build the parent Makefile
+	% make World			# compile it all
+
+There is no supported "make install" option, all files will be left in the
+CDL working directory following the World build.  Users of the package
+must either build the library and install the lib and include files by hand
+in their final destination, or use compiler "-I" and "-L" flags to find the
+files when compiling clients.
+	As an alternative for sites that don't have Imake installed or who
+encounter problems you can try the generic makefiles provided.  To use these
+simply do
+
+	% configure			# create the makefiles
+	% make World			# compile it all
+
+	Programs using the CDL will need one of three include files depending
+on the language interface being used: the "cdl.h" file for C programs, the
+"cdlftn.inc" file for Fortran programs, or the "cdlspp.h" file for SPP tasks.
+The C and SPP include files is required, the Fortran include file is optional
+and just defines symbolic names for various constants.  Fortran programmers
+not using the cdlftn.inc file should see to Reference Manual for values of
+symbolic constants.  The library file to be linked is "libcdl.a", all programs
+using the CDL must also link with the system math library.
+
+****************************************************************************
+*****  NOTE: Solaris users will also need to include "-lnsl -lsocket"  *****
+*****  when linking programs to include the socket interfaces.         *****
+****************************************************************************
+
+
+4.  Reporting Problems
+======================
+
+	Each of the CDL functions has been tested individually but there is
+no practical way to test how various combinations of routines may be used
+in any given application so bugs are inevitable.  If you think you've found
+a bug, have a suggestion for future enhancements, or just have a question
+about how something works, contact
+
+			iraf@noao.edu
+
+Messages may also be posted to the adass.iraf.programming newsgroup so that
+others may benefit from the exchange.  If you're not familiar with the ADASS
+newsgroup hierarchy send a message 
+
+		    irafinfo@iraf.noao.edu
+
+with the one-line message "get iraf newsgroups" in the body of the message
+for more information.  A small code sample demonstrating the problem would
+help greatly in finding the solution.  Debugging output for the package may
+be enabled by defining a unix CDL_DEBUG environment variable.  For example
+
+	% setenv CDL_DEBUG	0		# minimal debug output
+	% setenv CDL_DEBUG	1		# CDL and IMD debug info
+	% setenv CDL_DEBUG	2		# print it all
+
+Send this output along with the code sample.  An FAQ may be added later if
+needed.
+
+
+Mike Fitzpatrick
+NOAO/IRAF Project
+March 1998
+
+
+Post-Distribution Notes
+=======================
+
diff --git a/vendor/x11iraf/cdl/doc/cdlref.ms b/vendor/x11iraf/cdl/doc/cdlref.ms
new file mode 100644
index 00000000..da05ee1f
--- /dev/null
+++ b/vendor/x11iraf/cdl/doc/cdlref.ms
@@ -0,0 +1,2637 @@
+.RP
+.de us
+\\$1\l'|0\(ul'
+..
+.TL
+A Reference Guide for the IRAF Client Display Library (CDL)
+.AU
+Michael Fitzpatrick
+.AI
+NOAO/IRAF Group
+.sp 0.5
+February 1997
+.sp 0.5
+\fIRevised: August 2001\fR
+\fICurrent Version:  CDL V1.8\fR
+
+.AB
+The Client Display Library (CDL) is a host interface for C, Fortran or SPP
+programs allowing them to display images or overlay graphics to display
+servers such as \fIXImtool\fR, \fIDS9\fR, or \fISAOimage / SAOtng\fR.
+High-level procedures allow IRAF or FITS images to be displayed simply, other
+routines permit access to all other server functions (e.g. cursor and image
+readback, frame selection, etc).  The library also features a number of
+functions for doing image overlay graphics; supported graphics primitives
+include numerous point shapes, lines, circles, ellipses, polygons, annular
+shapes, and text.
+.AE
+
+.pn 1
+.bp
+.ce
+.ps +3
+\fBContents\fR
+.ps -3
+.sp 2
+1\h'|0.25i'\fBIntroduction\fP\l'|5.6i.'\0\01
+.sp 0.5
+2\h'|0.25i'\fBGetting Started\fP\l'|5.6i.'\0\01
+.sp 0.5
+3\h'|0.25i'\fBServer Connections\fP\l'|5.6i.'\0\02
+.br
+\h'|0.25i'3.1\h'|0.75i'Domain Sockets\l'|5.6i.'\0\02
+.br
+\h'|0.25i'3.2\h'|0.75i'Named FIFO Pipes\l'|5.6i.'\0\03
+.br
+\h'|0.25i'3.3\h'|0.75i'Inet Sockets\l'|5.6i.'\0\03
+.br
+\h'|0.25i'3.4\h'|0.75i'User-Defined Connections\l'|5.6i.'\0\03
+.sp 0.5
+4\h'|0.25i'\fBImage Display\fP\l'|5.6i.'\0\03
+.br
+\h'|0.25i'4.1\h'|0.75i'Overview of the Display Process\l'|5.6i.'\0\03
+.br
+\h'|0.25i'4.2\h'|0.75i'Displaying IRAF Images\l'|5.6i.'\0\04
+.br
+\h'|0.25i'4.3\h'|0.75i'Displaying FITS Images\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.4\h'|0.75i'Displaying Raw Pixels\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.5\h'|0.75i'Frame Selection\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.6\h'|0.75i'Clearing the Display\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.7\h'|0.75i'Frame Buffer Selection\l'|5.6i.'\0\06
+.br
+\h'|0.4i'4.7.1\h'|0.95i'Automatic Selection\l'|5.6i.'\0\06
+.br
+\h'|0.4i'4.7.2\h'|0.95i'The Frame Buffer Configuration File\l'|5.6i.'\0\06
+.br
+\h'|0.25i'4.8\h'|0.75i'Image WCS Description\l'|5.6i.'\0\07
+.br
+\h'|0.4i'4.8.1\h'|0.95i'Image Mappings\l'|5.6i.'\0\07
+.br
+\h'|0.25i'4.9\h'|0.75i'Image Colormaps\l'|5.6i.'\0\08
+.br
+\h'|0.4i'4.9.1\h'|0.95i'Imtool Color Model\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.10\h'|0.75i'ZScale Intensity Mapping\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.11\h'|0.75i'Image Hardcopy\l'|5.6i.'\010
+.br
+\h'|0.25i'4.12\h'|0.75i'Image Cursor\l'|5.6i.'\010
+.br
+\h'|0.4i'4.12.1\h'|0.95i'Cursor Sampling\l'|5.6i.'\011
+.br
+\h'|0.25i'4.13\h'|0.75i'Image Readout\l'|5.6i.'\011
+.br
+\h'|0.25i'4.14\h'|0.75i'Subraster I/O\l'|5.6i.'\011
+.sp 0.5
+5\h'|0.25i'\fBGraphics Overlay\fP\l'|5.6i.'\011
+.br
+\h'|0.25i'5.1\h'|0.75i'Marker Coordinates\l'|5.6i.'\011
+.br
+\h'|0.25i'5.2\h'|0.75i'Mapping a Previously Displayed Image\l'|5.6i.'\011
+.br
+\h'|0.25i'5.3\h'|0.75i'Marking a Coordinate File\l'|5.6i.'\012
+.br
+\h'|0.25i'5.4\h'|0.75i'Marker Colors\l'|5.6i.'\012
+.br
+\h'|0.25i'5.5\h'|0.75i'Marker Types\l'|5.6i.'\012
+.br
+\h'|0.4i'5.5.1\h'|0.95i'Point\l'|5.6i.'\013
+.br
+\h'|0.4i'5.5.2\h'|0.95i'Line\l'|5.6i.'\013
+.br
+\h'|0.4i'5.5.3\h'|0.95i'Box\l'|5.6i.'\013
+.br
+\h'|0.4i'5.5.4\h'|0.95i'Circle\l'|5.6i.'\013
+.br
+\h'|0.4i'5.5.5\h'|0.95i'Polyline\l'|5.6i.'\014
+.br
+\h'|0.4i'5.5.6\h'|0.95i'Polygon\l'|5.6i.'\014
+.br
+\h'|0.4i'5.5.7\h'|0.95i'Ellipse\l'|5.6i.'\014
+.br
+\h'|0.4i'5.5.8\h'|0.95i'Circular Annuli\l'|5.6i.'\014
+.br
+\h'|0.4i'5.5.9\h'|0.95i'Elliptical Annuli\l'|5.6i.'\014
+.br
+\h'|0.4i'5.5.10\h'|0.95i'Text\l'|5.6i.'\014
+.br
+\h'|0.25i'5.6\h'|0.75i'Text Fonts\l'|5.6i.'\015
+.br
+\h'|0.4i'5.6.1\h'|0.95i'In-line Font Changes\l'|5.6i.'\015
+.br
+\h'|0.25i'5.7\h'|0.75i'Line Widths and Styles\l'|5.6i.'\015
+.br
+\h'|0.25i'5.8\h'|0.75i'Deleting Markers\l'|5.6i.'\016
+.br
+\h'|0.4i'5.8.1\h'|0.95i'Individual Markers\l'|5.6i.'\016
+.br
+\h'|0.4i'5.8.2\h'|0.95i'The Entire Overlay\l'|5.6i.'\016
+.br
+\h'|0.25i'5.9\h'|0.75i'Redrawing the Overlay\l'|5.6i.'\016
+.sp 0.5
+6\h'|0.25i'\fBANSI C Function Prototypes\fP\l'|5.6i.'\017
+.sp 0.5
+7\h'|0.25i'\fBFortran Language Binding Notes\fP\l'|5.6i.'\017
+.sp 0.5
+8\h'|0.25i'\fBSPP Language Binding Notes\fP\l'|5.6i.'\018
+.sp 0.5
+9\h'|0.25i'\fBIIS Protocol Description\fP\l'|5.6i.'\018
+.sp 0.5
+10\h'|0.25i'\fBVXIMTOOL Proxy/Display Server Usage\fP\l'|5.6i.'\019
+.sp 0.5
+11\h'|0.25i'\fBC Interface Summary\fP\l'|5.6i.'\021
+.sp 0.5
+12\h'|0.25i'\fBC Example Tasks\fP\l'|5.6i.'\023
+.br
+\h'|0.25i'12.1\h'|0.75i'Display Example\l'|5.6i.'\023
+.br
+\h'|0.25i'12.2\h'|0.75i'Interactive Graphics Overlay Example\l'|5.6i.'\027
+.br
+\h'|0.25i'12.3\h'|0.75i'Image Mosaic Example\l'|5.6i.'\031
+.sp 0.5
+13\h'|0.25i'\fBFortran Interface Summary\fP\l'|5.6i.'\033
+.sp 0.5
+14\h'|0.25i'\fBFortran Example Tasks\fP\l'|5.6i.'\035
+.br
+\h'|0.25i'14.1\h'|0.75i'Display Example\l'|5.6i.'\035
+.br
+\h'|0.25i'14.2\h'|0.75i'Interactive Graphics Overlay Example\l'|5.6i.'\036
+.sp 0.5
+15\h'|0.25i'\fBSPP Interface Summary\fP\l'|5.6i.'\038
+.pn 1
+
+.NH
+Introduction
+.LP
+	For more than a decade IRAF has used a \fIdisplay server\fR as the
+primary means for image display.  IRAF client tasks connect to the server
+and send or read data using a modification of the IIS Model 70 protocol,
+originally through named fifo pipes but more recently using unix domain
+or inet sockets.  The advantage to this approach was that IRAF client tasks
+could make use of the image display functionality without duplicating
+the code needed for actually displaying the image.  The longtime disadvantage
+was that the IIS protocol used was arcane and undocumented and therefore 
+largely unavailable to applications outside of the IRAF project.  The
+Client Display Library (CDL) provides a public C and Fortran interface for
+displaying images and overlay graphics that is independent of the underlying
+protocol used.
+.LP
+	Unlike the interface used by IRAF applications, the CDL is meant to
+provide an easy-to-use, fully featured interface for applications that can
+be easily evolved for future display servers, communications schemes, or
+display functionality.  Indeed, the CDL is independent of IRAF itself (as
+are the display servers) so display tasks can be written for any discipline
+or application.
+.LP
+	While this guide assumes programs are written in C, Fortran programmers
+should find the translation straightforward by referring to the Fortran
+interface summary.  The package source files include example tasks as does
+this guide; users with problems, questions, or bug reports are encouraged to
+contact \fIiraf@noao.edu\fR.  A small code sample demonstrating the problem
+would be very helpful in finding a solution to any reported problems.
+
+.NH 
+Getting Started
+.LP
+	All C programs must include the header file \fB"cdl.h"\fR in order
+to get package definitions for constants such as colors and structure
+definitions used.  The Fortran interface does not \fIrequire\fR anything
+similar, however for fortran compilers which support an \f(CWinclude\fR
+directive a \fBcdlftn.inc\fR file may be used to define symbolic constants
+passed to procedures, this file must be included by each procedure using the
+CDL.  Fortran programs not using this file must pass in the constants 
+explicitly, needed values are found throughout this manual.  C procedures
+which return an integer value will return a positive number to indicate an
+error has occurred and print an error message, otherwise zero is returned.
+.LP
+	The \fBcdl_open()\fR procedure is used to establish a connection
+to the server and initialize the package, it returns a CDL structure pointer
+that is passed to other CDL procedures.  For C programs this means
+a separate pointer may be maintained for each server connection, the Fortran
+interface is limited to only one server connection per process since the
+pointer is maintained internally.  The connection is terminated using the
+\fBcdl_close()\fR procedure.  Between these two calls may be any combination
+of CDL procedure calls for doing image display or overlay graphics.
+.LP
+	For example, the simplest possible program for displaying an IRAF
+image would look something like:
+.sp 0.5
+.nf
+		\f(CW#include "cdl.h"
+
+		main (int argc, char *argv[])
+		{
+		    CDLPtr cdl = cdl_open ((char *)0);
+		    cdl_displayIRAF (cdl, argv[1], 1, 1, 1, 1);
+		    cdl_close (cdl);
+		}\fR
+.fi
+.sp 0.5
+.LP
+This program displays band one of an image named on the command line to the
+server in frame one using the default 512x512 frame buffer, zscaling the
+pixels to 8-bit values automatically. No error checking is performed to verify
+that a connection was established or that the argument is a valid IRAF image.
+Most programs will be more complex than this but it should be clear that
+image display from client applications is a now trivial operation.
+
+.us "Synopsis"
+.sp 0.5
+.nf
+	\f(CW#include "cdl.h"\fR
+
+	\f(CWCDLPtr cdl_open (char *imtdev)\fR
+	\f(CWvoid cdl_close (CDLPtr cdl)\fR
+.fi
+
+.NH
+Server Connections 
+.LP
+	The \fBcdl_open()\fR procedure takes a single argument specifying the 
+type of connection to make to the server, this routine also initializes
+the CDL package.  If this is a NULL pointer the CDL will attempt to first
+connect on a unix domain socket, if that fails the standard IRAF /dev/imt1*
+fifo pipes are tried.  The syntax for the \fIimtdev\fR argument is as follows:
+.sp 0.5
+				\f(CW<domain> : <address>\fR
+.sp 0.5
+.LP
+where <domain> is one of "\fBinet\fR" (internet tcp/ip socket), "\fBunix\fR"
+(unix domain socket) or "\fBfifo\fR" (named pipe).  The form of the address
+depends upon the domain, as illustrated in the examples below.  The address
+field may contain up to two "%d" fields.  If present, the user's UID will be
+substituted (e.g. "unix:/tmp/.IMT%d"). The default connection if no imtdev
+is specified is "unix:/tmp/.IMT%d", failing that a connection is attempted
+on the /dev/imt1[io] named fifo pipes.   
+.NH 2
+Domain Sockets
+.LP
+	Domain sockets are sockets created on the local host.  The connection
+is usually faster than an inet socket and comparable to a fifo.  If the
+socket name is specified with a '%d' field the client can be assured of a 
+unique socket name for each user allowing multiple clients to be run on the
+same host by different users.
+.LP
+.us "Example"
+.sp 0.5
+.nf
+\f(CW
+	/* Connection to a local host using socket domain socket. */
+	if ((cdl = cdl_open ("unix:/tmp/.IMT%d")) == NULL) {
+	     fprintf (stderr, "cannot open domain socket connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+Named FIFO Pipes
+.LP
+	This is the traditional approach, and the only one supported by
+SAOimage (although recent versions contain support for sockets). Any named
+fifo pipe may be used, the syntax for the \fIimtdev\fR string in this case is
+.sp 0.5
+		\fBfifo:\f(CW<input_fifo>\fB:\f(CW<output_fifo>\fR
+.sp 0.5
+.LP
+.us "Example"
+.sp 0.5
+.nf
+	\f(CW/* Connection to a local host using named fifo pipes. */
+	if ((cdl = cdl_open ("fifo:/dev/imt1i:/dev/imt1o")) == NULL) {
+	     fprintf (stderr, "cannot open fifo pipe connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+Inet Sockets
+.LP
+	Inet sockets are connections between hosts via a tcp/ip socket.
+This permits connecting to the server over a remote network connection
+anywhere on the Internet.    
+.LP
+.us "Example"
+.sp 0.5
+.nf
+	\f(CW/* Connection to a local host using socket 5137. */
+	if ((cdl = cdl_open ("inet:5137")) == NULL) {
+	     fprintf (stderr, "cannot open inet socket connection\\n");
+	     exit (1);
+	}
+
+	/* Connection to a remote internet host using socket 5137. */
+	if ((cdl = cdl_open ("inet:5137:foo.bar.edu")) == NULL) {
+	     fprintf (stderr, "cannot open inet socket connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+User-Defined Connections
+.LP
+	Since IRAF V2.10.3 client tasks have been able to use an \fBIMTDEV\fR
+unix environment variable to set the connection type, the syntax of this 
+variable is the same as described above.  If the \fIcdl_open()\fR procedure
+is called with a NULL pointer the IMTDEV environment variable will
+automatically be checked.  To explicitly use this (or any other) variable
+in the client task the \fIcdl_open()\fR procedure may be called as
+e.g.
+.sp 0.5
+.nf
+	\f(CWif ((cdl = cdl_open (getenv("IMTDEV"))) == NULL) {
+	     fprintf (stderr, "cannot open server connection\\n");
+	     exit (1);
+	}\fR
+.fi
+.NH
+Image Display
+.NH 2
+Overview of the Display Process
+.LP
+	Basic image display is done most easily using the high-level
+\fBcdl_displayIRAF()\fR, \fBcdl_displayFITS()\fR and \fBcdl_displayPix()\fR
+procedures.  These routines automatically define an image WCS and mapping,
+clear the frame, set the frame buffer configuration and center the image
+in the display.  For most applications these are all that will be needed,
+but the \fBcdl_writeSubRaster()\fR procedure can also be used to display an
+image.  For example, to display one image in a mosaic or other cases where
+the task needs low-level access to position the image or write raw pixel
+values.
+.LP
+	In these cases it is the responsibility of the client program to
+prepare the server for display.  The basic steps involved in displaying an
+image include
+.sp 0.5
+.TS
+center;
+lB lB
+- -
+l lI.
+Operation	CDL Procedure
+Selecting the frame	cdl_setFrame()
+Clear the frame	cdl_clearFrame()
+Select the frame buffer configuration	cdl_selectFB()
+Set the frame buffer configuration	cdl_setFBConfig()
+Scale the image pixels to 201 display values	cdl_zscaleImage()
+Compute the raster placement in the frame buffer	 
+Construct a \fInode!path\fR image path
+Set the image mapping	cdl_setMapping()
+Define the image WCS	 
+Set the image WCS	cdl_setWCS()
+Write the pixels to the display	cdl_writeSubRaster()
+.TE
+.sp 0.5
+In cases like a mosaic display, obviously some steps (e.g. clearing the
+frame, selecting the configuration, etc) will only need to be done once.
+XImtool V1.3 and later version support multiple WCSs in a single frame
+so each piece of the mosaic should define a mapping and an independent
+WCS.  The last step in the display here should be a single WCS for the
+entire mosaic such as "\fIdetector coordinates\fR", without this the
+coordinates used by default will be based on the last WCS sent to the
+display.  Servers which do not support mappings will just ignore the
+mapping information, but may still require a frame buffer WCS for other
+tasks to operate correctly.  For simple displays of single images, the
+high-level routines handle all of these steps automatically, they are
+included here as checklist of what must be considered when using the CDL
+for low-level display.
+.NH 2
+Displaying IRAF Images
+.LP
+	The \fBcdl_displayIRAF()\fR procedure can be used to display an
+IRAF OIF format image (i.e. images with a \fI.imh\fR extension) by
+simply passing in the image name.  Pixel files for the image must be
+accessible from the local machine but can be in any directory, the HDR$
+syntax for the imdir is also recognized.  Images may be three dimensional,
+the \fIband\fR argument is used to select the image band to be displayed.
+The \fIframe\fR and \fIfbconfig\fR arguments select the frame and frame
+buffer size respectively, the special symbolic value \fBFB_AUTO\fR may be
+used for the \fIfbconfig\fR argument to have the procedure automatically
+select the frame buffer most appropriate for the image size.
+If the \fIzscale\fR flag is greater than zero
+the image will automatically be converted to 8-bit values using the zscale
+mapping algorithm.  The function returns a positive value if the image
+cannot be accessed or displayed for any reason, an error message will be
+printed.
+.LP
+	The \fIcdl_isIRAF()\fR procedure returns a positive value if the
+filename argument is recognized as an IRAF image, it does not check whether
+the pixel file can be successfully accessed.  For simply reading the pixels
+from an IRAF image the \fBcdl_readIRAF()\fR procedure may be used.  The
+function returns a zero value and sets the output pixel array, image
+dimensions and pixel size if successful, otherwise the function returns a
+positive value.  Note that
+the output pixel values may need to be scaled before they can be displayed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayIRAF (CDLPtr cdl, char *fname, int band,
+	    int frame, int fbconfig, int zscale)\fR
+	\f(CWint cdl_isIRAF (char *fname)\fR
+	\f(CWint cdl_readIRAF (char *fname, int band, uchar **pix,
+	    int *nx, int *ny, int *bitpix, char *title)\fR
+.fi
+.NH 2
+Displaying FITS Images
+.LP
+	The \fBcdl_displayFITS()\fR procedure can be used to display a
+\fIsimple\fR FITS image by name.  A "simple" FITS file is assumed to be
+one containing a single image and having no extensions.  Other types of
+FITS files may of course be displayed but the client will have to use other
+means to import the pixels.  FITS image extensions may be supported in a future
+release of the CDL.  The \fIframe\fR and \fIfbconfig\fR
+arguments select the frame and frame buffer size respectively, 
+the special symbolic value \fBFB_AUTO\fR may be
+used for the \fIfbconfig\fR argument to have the procedure automatically
+select the frame buffer most appropriate for the image size.
+If the
+\fIzscale\fR flag is greater than zero the image will automatically be
+converted to 8-bit values using the zscale mapping algorithm.  The function
+returns a positive value if the image cannot be accessed or displayed for
+any reason, an error message will be printed.
+.LP
+	The \fIcdl_isFITS()\fR procedure returns a positive value if the
+filename argument is recognized as a simple FITS image.  For simply reading
+the image pixels the \fBcdl_readFITS()\fR procedure may be used.  The
+output pixel array, image dimensions and pixel size are returned if
+successful otherwise the function returns a positive value.  Note that
+the returned pixel values may need to be scaled before they can be displayed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayFITS (CDLPtr cdl, char *fname, int frame,
+	    int fbconfig, int zscale)\fR
+	\f(CWint cdl_isFITS (char *fname)\fR
+	\f(CWint cdl_readFITS (char *fname, uchar **pix, int *nx, int *ny,
+	    int *bitpix, char *title)\fR
+.fi
+.NH 2
+Displaying Raw Pixels
+.LP
+	The \fBcdl_displayPix()\fR procedure can be used to display an
+arbitrary array of pixels of any size.  The \fInx\fR and \fIny\fR arguments
+are the raster dimensions, and \fIbitpix\fR is the pixel size and has the
+same meaning as the FITS BITPIX keyword.  The \fIframe\fR and \fIfbconfig\fR
+arguments select the frame and frame buffer size respectively, 
+the special symbolic value \fBFB_AUTO\fR may be
+used for the \fIfbconfig\fR argument to have the procedure automatically
+select the frame buffer most appropriate for the image size.
+If the
+\fIzscale\fR flag is greater than zero the image will automatically be
+converted to 8-bit values using the zscale mapping algorithm.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayPix (CDLPtr cdl, uchar *pix, int nx, int ny,
+	    int bitpix, int frame, int fbconfig, int zscale)\fR
+.fi
+.NH 2
+Frame Selection
+.LP
+	Frame selection is normally done as an argument to one of the display
+procedures, however frames may be explicitly selected using the
+\fBcdl_setFrame()\fR procedure.  This allows client programs to essentially
+"blink" frames independently, as long as the server supports multiple frames.
+The \fBcdl_getFrame()\fR procedure may be used to get the current frame 
+set in the server.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFrame (CDLPtr cdl, int frame)\fR
+	\f(CWvoid cdl_getFrame (CDLPtr cdl, int *frame)\fR
+.fi
+.NH 2
+Clearing the Display
+.LP
+	The current display frame may be explicitly cleared using the
+\fBcdl_clearFrame()\fR procedure.  The frame is also cleared prior to 
+displaying new images by the procedures \fBcdl_displayPix()\fR,
+\fBcdl_displayFITS()\fR, and \fBcdl_displayIRAF()\fR.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_clearFrame (CDLPtr cdl)\fR
+.fi
+.NH 2
+Frame Buffer Selection
+.LP
+	The default frame buffer used is 512x512, other sizes may be 
+selected using the \fBcdl_setFBConfig()\fR procedure.  To set the frame
+buffer size the client passes the frame buffer number as defined in 
+the frame buffer configuration file (see below) while setting the image
+WCS.  It is important to note that the frame buffer isn't actually changed
+in the server until a subsequent \fBcdl_setWCS()\fR call, either directly
+or through some other procedure which sets the WCS (e.g. one of the display
+procedures).
+.LP
+	To get the size of the currently defined frame buffer the user
+may call the \fBcdl_getFBConfig()\fR procedure.  This returns not only
+the current configuration number, but the size as well.  To get the size
+and any arbitrary configuration without actually setting it, the
+\fBcdl_lookupFBSize()\fR procedure may be used.  Any configuration not actually
+defined in the frame buffer configuration file is returned as the default
+512x512 size.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFBConfig (CDLPtr cdl, int configno)\fR
+	\f(CWvoid cdl_getFBConfig (CDLPtr cdl, int *configno, int *width,
+	    int *height, int *nframes)\fR
+	\f(CWvoid cdl_lookupFBSize (CDLPtr cdl, int configno, int *width,
+	    int *height, int *nframes)\fR
+.fi
+.NH 3
+Automatic Selection
+.LP
+	The \fBcdl_selectFB()\fR procedure may be used to select the most
+appropriate frame buffer to use for a given image size.  If possible a frame
+buffer the same size as the image will be used, otherwise one that is
+larger will be chosen.  Rather than simply selecting the first configuration 
+larger than the image, the procedure searches the entire configuration file
+selecting the one with the least empty space in both dimensions.  If the 
+\fIreset\fR flag is non-zero this frame is set automatically by the 
+procedure, otherwise the selected dimension is simply returned to the 
+calling program.  In either case the new frame buffer will not take effect
+until a new WCS is defined for the frame.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_selectFB (CDLPtr cdl, int nx, int ny, int *fb,
+		int *w, int *h, int *nf, int reset)
+.fi
+.NH 3
+The Frame Buffer Configuration File
+.LP
+	The size of the frame buffer is not passed directly to the server
+since this is not part of the communications protocol used.  Instead, the
+frame buffer number is sent as part of the WCS header packet.  So that 
+both the server and client can know that a particular frame buffer number
+corresponds to a specific size, a \fIframe buffer configuration file\fR 
+is used which both the client and server read.
+.LP
+	The default configuration file is /usr/local/lib/imtoolrc, this can
+be overridden by defining an \fBIMTOOLRC\fR environment variable naming
+the file to be used, or by creating a .imtoolrc file in your home directory.
+Since the server must also read the same file, this must be done before
+starting both the client and server applications.
+.LP
+The format of the frame buffer configuration file is
+.sp 0.5
+	\fIconfigno nframes width height [extra fields]\fP
+.sp 0.5
+e.g.
+.sp 0.5
+          1  2  512  512
+          2  2  800  800
+          3  1 1024 1024          # comment
+          :  :   :    :
+
+At most 128 frame buffer sizes may be defined, each configuration may define
+up to 4 frames, configuration numbers need not be sequential but should be 
+in ascending order.
+.NH 2
+Image WCS Description
+.LP
+	The image WCS is defined using the \fBcdl_setWCS()\fR procedure.  The
+WCS defines a mapping between any linear coordinate system and the image
+pixels, for our purposes we will discuss how the WCS is used to map the frame
+buffer pixels to image coordinates.  It is passed to the server in a string
+of the form:
+.sp 0.5
+.nf
+                \fIname\fR - \fItitle\fR\\n
+		a b c d tx ty z1 z2 zt
+.fi
+.sp 0.2
+where:
+.sp 0.2
+              \fBX\fR' = a * \fBX\fR + c * \fBY\fR + tx
+              \fBY\fR' = b * \fBX\fR + d * \fBY\fR + ty
+
+The terms \fIa, b, c\fR, and \fId\fR define a rotation of the WCS wrt the 
+pixel (i.e. frame buffer)
+coordinates, the \fItx\fR and \fIty\fR values are translation terms relative
+to the upper-left corner of the display.  The
+remaining three values define the intensity mapping of the display pixels;
+\fIz1\fR is the minimum pixel value used in the transformation, \fIz2\fR is
+the maximum value, and \fIzt\fR defines the type of transformation used (0 for
+none, 1 for linear, 2 for log10).  
+.LP
+	The WCS may be set explicitly by the calling program or a default
+appropriate for the image will be set automatically by the high-level
+display procedures, otherwise a WCS for the frame buffer is defined
+(i.e. returned coordinates are frame buffer coords).  As an example of how
+the WCS is defined, the default WCS for an image \fIIMX\fR x \fIIMY\fR
+pixels in a frame buffer \fIFBX\fR x \fIFBY\fR pixels is defined as
+.sp 0.5
+.nf
+\f(CW        a  =  1.0;                         /* no rotation */
+        b  =  0.0;
+        c  =  0.0;
+        d  = -1.0;
+        tx = (\fIIMX\f(CW / 2) - (\fIFBX\f(CW / 2) + 1;    /* center in FB */
+        ty = (\fIFBY\f(CW / 2) + (\fIIMY\f(CW / 2);
+        z1 = z1;                           /* zscale values */
+        z2 = z2;
+        zt = 1;\fR
+.fi
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_setWCS (CDLPtr cdl, char *name, char *title,
+	    float a, float b, float c, float d, float tx, float ty,
+	    float z1, float z2, int zt)\fR
+	\f(CWint cdl_getWCS (CDLPtr cdl, char *name, char *title,
+	    float *a, float *b, float *c, float *d, float *tx, float *ty,
+	    float *z1, float *z2, int *zt)\fR
+.fi
+.NH 3
+Image Mappings
+.LP
+	Beginning with \fBX11IRAF V1.3\fR the \fIXImtool\fR display server
+has had the ability to use multiple world coordinate systems in a frame
+(e.g. subrasters of a mosaic display).  To do this, the \fBIRAF\fR and 
+\fBCDL\fR display interfaces were modified to pass in extra information 
+with the WCS string to define the mapping of the image pixels to the frame
+buffer pixels.  This extra information allows the XImtool to know when the
+cursor in within one of the image subrasters and compute coordinates
+appropriately.  (See the \fIXImtool\fR documentation for details on how
+this is done exactly).
+.LP
+	The CDL will automatically determine when the connection is first
+established whether the server is aware of this new mapping information.
+Calls to send or receive mapping data will be ignored for servers which are
+not aware of the extra data in the string.  For servers which can use the
+mappings, and where a mapping has been provided,  the WCS string now looks
+like
+.sp 0.5
+.nf
+                \fIname\fR - \fItitle\fR\\n
+		a b c d tx ty z1 z2 zt\\n
+		\fBregion_name sx sy snx sny dx dy dnx dny\\n
+		object_ref\R
+.fi
+.sp 0.5
+where the new parameters are defined to be:
+.sp 0.2
+.TS
+center;
+lB lI.
+region_name	User-defined name for the region.
+sx, sy, snx, sny	Source rect in the object.
+dx, dy, dnx, dny	Destination rect in the display frame buffer.
+object_ref	Full node!/path image specification.
+.TE
+The \fIobject_ref\fR should be a complete node!path specification to the
+image including any image section or extension.  This is needed by the
+XImtool coordinate/pixel plug-in to map the same image as was displayed by
+the client.  The path and node are required to ensure the image will be
+found properly.  The \fIregion_name\fR can be anything such as \fIimage\fR,
+\fIsubraster1\fR, or \fIccd3\fR.  The purpose of this field is to provide 
+some named value for the mapping that may be useful to other client programs
+needing to access the mapping.  \fISource\fR coordinates refer to the image
+pixels, \fIdestination\fR coordinates refer to the frame buffer.
+.LP
+	Because we did not wish to change any of the existing interfaces,
+mappings must be set prior to the \fBcdl_setWCS()\fR call  using the
+\fBcdl_setMapping()\fR procedure.  The mapping is stored until the WCS is
+actually sent.  Similarly, a mapping may be retrieved \fIafter\fR a
+\fBcdl_getWCS()\fR call using the \fBcdl_getMapping()\fR procedure to 
+return the values read with the last WCS retrieval.  Since there can at
+times be more than one WCS in a frame, it's also possible to query the
+mapping for a particular WCS by number (e.g. the WCS number returned in a
+cursor read) using the \fIcdl_queryMap()\fR procedure.  See the sample
+programs in the appendices for examples of how these procedures might be
+called.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_getMapping(CDLPtr cdl, char *region,
+	    float *sx, float *sy, int *snx, int *sny,
+	    int *dx, int *dy, int *dnx, int *dny, char *ref);
+	\f(CWint cdl_setMapping(CDLPtr cdl, char *region,
+	    float sx, float sy, int snx, int sny,
+	    int dx, int dy, int dnx, int dny, char *ref);
+	\f(CWint cdl_queryMap(CDLPtr cdl, int wcs, char *region,
+	    float *sx, float *sy, int *snx, int *sny,
+	    int *dx, int *dy, int *dnx, int *dny, char *objref);
+.fi
+
+.NH 2
+Image Colormaps
+.LP
+	The IIS protocol used does not permit the downloading of user-defined
+colormaps, all images are loaded as raw grayscale values according to the
+XImtool colormap model used by currently supported servers.  All images
+containing private colormaps or more than the 201 grayscale values defined
+by the Imtool colormap model must either convert the image to 8-bit
+grayscale values by calling the CDL zscale procedures (\fBcdl_computeZscale()\fR
+and \fBcdl_zscaleImage()\fR) or scale the images in client code with 
+user LUTs.  The CDL zscale procedures scale image to 201 grayscale values
+so that they are displayed to the full 8-bit range, user LUT
+transformations or user code for converting to grayscale from a private
+colormap procedures should do the same.
+.NH 3
+Imtool Color Model
+.LP
+	The IMTOOL color model defines at most 201 grayscale values for use in 
+displaying the image, a set of 16 static colors are also defined for overlay
+graphics.  Pixel values sent to the server should be already scaled to this 
+model, i.e. the image pixels should be scaled to the range 1-200, values 
+above this will either represent the overlay colors or will wrap around to
+8-bit values.  The CDL zscale procedures will automatically scale
+arbitrary pixel values to use this color model, the overlay procedures
+assume color values are defined for the static color range 201-217 but any
+8-bit value may be used.
+.LP
+	A summary of the color model values is included below:
+.TS
+center;
+lB lB cB cB lB lB
+l l c c l l.
+Color	Description		Color	Description
+0	Background		208	Cyan
+1 - 200	Image data		209	Magenta
+201	Cursor (white)		210	Coral
+202	Background (black)		211	Maroon
+203	White		212	Orange
+204	Red		213	Khaki
+205	Green		214	Orchid
+206	Blue		215	Turquoise
+207	Yellow		216	Violet
+217	Wheat		218-255	undefined
+.TE
+.NH 2
+ZScale Intensity Mapping
+.LP
+	Since most display servers are only capable of displaying 8-bit pixel
+values,  images with more than 8-bits per pixel must be scaled prior to
+display.  For linear transformations this is typically done using a simple
+conversion of the image min/max values to the 256 grayscale values, however
+this doesn't produce very good results when most pixel values are near one
+of the extremes (usually the image min for astronomical images).  To solve
+this IRAF uses a \fIzscale\fR mapping algorithm where a sampling grid is used
+to approximate the image min/max values rather than computing it directly,
+a line is then fit to these sample pixels to determine the optimal
+transformation to the display values.  This is not only more efficient but
+maps the most common pixel values to the display range producing a better image.
+.LP
+	The CDL has several routines for doing the same transformation: the
+\fIcdl_computeZscale()\fR procedure is used to compute the optimal \fIz1\fR
+and \fIz2\fR
+values (the min/max used for the zscale transform) for an image of any pixel
+size.  The \fIbitpix\fR argument is the number of bits-per-pixel for the input
+array and has the same meaning as for the FITS \fIBITPIX\fR keyword. To then
+transform the image using these values (or user-defined values) the
+\fIcdl_zscaleImage()\fR procedure is used.  The input pixels are modified by
+this procedure but the array is not reallocated to the smaller size needed by
+an 8-bit array.  The \fBcdl_setSample()\fR and \fBcdl_setSampleLines()\fR
+procedures can be used to change the sampling grid and number of sample
+points (the default is 600 points on 5 lines).  The \fBcdl_setContrast()\fR
+procedure can be used to change the default contrast adjustment to the slope
+used in the transformation (the default is 0.25).  If a value of zero is
+given then the minimum and maximum of the intensity sample is used as the
+z1/z2 value.
+.LP
+	Each of the CDL display procedures has a \fIzscale\fR flag to
+automatically scale the pixels prior to display.  Applications wishing to 
+set their own z1/z2 values will need to call the zscale procedures and
+disable this flag.  By default cdl_zscaleImage() will use a linear transform,
+the \fBcdl_setZTrans()\fR procedure may be used to change this.  Acceptable
+values are \fBCDL_UNITARY\fR (zero) for a unitary transform, \fBCDL_LINEAR\fR
+(one) for a linear transform, or \fBCDL_LOG\fR (two) for a log10 transform.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_computeZscale (CDLPtr cdl, uchar *pix, int nx,
+	    int ny, int bitpix, float *z1, float *z2)\fR
+	\f(CWvoid cdl_zscaleImage (CDLPtr cdl, uchar **pix, int nx,
+	    int ny, int bitpix, float z1, float z2)\fR
+
+	\f(CWvoid cdl_setZTrans (CDLPtr cdl, int ztrans)\fR
+	\f(CWvoid cdl_getZTrans (CDLPtr cdl, int *ztrans)\fR
+	\f(CWvoid cdl_setZScale (CDLPtr cdl, float z1, float z2)\fR
+	\f(CWvoid cdl_getZScale (CDLPtr cdl, float *z1, float *z2)\fR
+
+	\f(CWvoid cdl_setSample (CDLPtr cdl, int nsample)\fR
+	\f(CWvoid cdl_setSampleLines (CDLPtr cdl, int nlines)\fR
+	\f(CWvoid cdl_setContrast (CDLPtr cdl, float contrast)\fR
+	\f(CWvoid cdl_getSample (CDLPtr cdl, int *nsample)\fR
+	\f(CWvoid cdl_getSampleLines (CDLPtr cdl, int *nlines)\fR
+	\f(CWvoid cdl_getContrast (CDLPtr cdl, float *contrast)\fR
+
+.fi
+.NH 2
+Image Hardcopy 
+.LP
+	While most servers include some hardcopy capability of their own the 
+CDL provides two procedures for creating hardcopy images from the client
+(e.g. for a batch processing application).  The client will typically read
+back the entire image, frame buffer, of just a subraster and pass those
+pixels to the print procedure.  Images will be written as Pseudocolor
+Postscript (to preserve the overlay marker colors) and may be disposed to
+a file using the \fBcdl_printPixToFile()\fR procedure or to any command string
+accepting input from \fIstdin\fR (typically just an 'lpr' command) by using
+the \fBcdl_printPix()\fR procedure.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_printPix (CDLPtr cdl, char *cmd, uchar *pix, int nx,
+	    int ny, int annotate)\fR
+	\f(CWint cdl_printPixToFile (CDLPtr cdl, char *fname, uchar *pix,
+	    int nx, int ny, int annotate)\fR
+.fi
+.NH 2
+Image Cursor
+.LP
+	The image cursor is read using the \fBcdl_readCursor()\fR procedure.
+The returned value is the cursor \fI(x,y)\fR position as floating point value
+in terms of the currently define image WCS.  Note that this position must
+be converted to integer if it is to be used in one of the marker procedures.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_readCursor (CDLPtr cdl, int sample, float *x,
+	    float *y, int *wcs, char *key)\fR
+.fi
+
+The \fIwcs\fR argument is defined as 
+
+.nf
+        wcs = frame * 100 + wcs_number
+.fi
+
+(where wcs_number=0 for frame buffer coords and 1 for image coords).  So,
+you can get the frame as simply
+
+.nf
+        frame = (int) (wcs / 100)
+.fi
+
+.NH 3
+Cursor Sampling
+.LP
+	If the cdl_readCursor() \fIsample\fR flag is non-zero the \fIlogical
+image cursor\fR position is returned immediately, otherwise the display server
+will wait for a keystroke before returning the cursor position.  The logical
+image cursor is the last value set by a \fIcdl_setCursor()\fR call or the last
+value returned by a \fIcdl_readCursor()\fR call.  When sampling the cursor 
+position the keystroke value is undefined.
+.NH 2
+Image Readout
+.LP
+	The CDL maintains an internal knowledge of where an image has been
+positioned if it was displayed using one of the \fIcdl_display*\fR procedures.
+The \fBcdl_readImage()\fR procedure may be used to read back the entire image
+pixels from the server ignoring the region of the frame buffer outside of
+the image, the \fBcdl_readFrameBuffer()\fR procedure will read back the 
+contents of the entire frame buffer.  The dimensions of the array are returned
+in the \fInx\fR and \fIny\fR arguments.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_readImage (CDLPtr cdl, uchar **pix, int *nx,
+	    int *ny)\R
+	\f(CWint cdl_readFrameBuffer (CDLPtr cdl, uchar **pix,
+	    int *nx, int *ny)\R
+.fi
+.NH 2
+Subraster I/O
+.LP
+	The \fBcdl_writeSubRaster()\fR procedure is used to write an arbitrary
+raster to any location in the display.  Similarly the
+\fBcdl_readSubRaster()\fR procedure is used to read back an arbitrary raster.
+When an image has previously been displayed the subraster position is given
+in image coordinates (e.g. when writing a subregion of edited pixels),
+otherwise the position is in frame buffer coordinates (e.g. to display
+multiple images per frame you should use the cdl_writeSubRaster() call).
+See the section on \fIMarker Coordinates\fR for further explanation of the
+coordinate systems used.  
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_writeSubRaster (CDLPtr cdl, int lx, int ly, int nx,
+	    int ny, uchar *pix)\fR
+	\f(CWint cdl_readSubRaster (CDLPtr cdl, int lx, int ly, int nx,
+	    int ny, uchar **pix)\fR
+.fi
+.NH
+Graphics Overlay
+.NH 2
+Marker Coordinates
+.LP
+	All marker positions are assumed to be image pixel coordinates, 
+although there is no requirement that the position be on the image itself.
+When an image WCS is defined (using the CDL display procedures or explicitly)
+the origin of the coordinates used shifts from the frame buffer lower-left
+to the lower-left of the image as displayed in the frame.   Negative
+positions are allowed and will either refer to empty pixels if the frame
+buffer is larger than the image, or pixels outside the frame buffer
+boundaries.  Raster I/O requests will be clipped to the frame buffer
+endpoints, a request completely outside the frame buffer is an error.
+.NH 2
+Mapping a Previously Displayed Image
+.LP
+	Ideally any application wishing to draw markers on an image will have
+also displayed that image, however the \fBcdl_mapFrame()\fR procedure may
+be used to map the requested frame for marker overlay.  It does this by
+reading the WCS defined for that frame and assumes an image has been
+displayed and centered in the frame buffer, then resets the internal CDL
+image position.   For this reason it should not be used when multiple image
+mappings have been displayed to a frame unless the marker overlay can be
+done reliably using the last WCS displayed to the frame buffer.
+If no image has been displayed the frame buffer is mapped
+directly.  This can be used for example to map an empty frame for displaying
+just the markers without an image, or for mapping another frame's WCS for
+use on the current display.  The frame is not changed by the procedure call
+however the current WCS \fIis\fR changed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_mapFrame (CDLPtr cdl, int frame)\fR
+.fi
+.NH 2
+Marking a Coordinate File
+.LP
+	Since a common function for programs will be to mark a list of
+coordinates, the high-level \fBcdl_markCoordsFile()\fR procedure is
+provided to make this easier.  The input parameters include a filename
+expected to contain a set of (x,y) points (real or integer), and arguments
+specifying the point type, size and color to draw.  If the \fIlabel\fR 
+argument is positive each marker point will be labeled with it's relative
+number in the file.  The size, type and color arguments all have the same
+meaning as for the \fBcdl_markPoint()\fR procedure described below.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCoordsFile (CDLPtr cdl, char *fname, int type,
+	    int size, int color, int label)\fR
+.fi
+.NH 2
+Marker Colors
+.LP
+	Markers may be drawn using any 8-bit value, in order to use the 
+static overlay colors the color must be in the range 201-217 (see above for
+notes on the XImtool color model).  The "\fIcdl.h\fR" include file
+for C programs, the "\fIcdlftn.inc\fR" include for fortran programs,
+or the "\fIcdlspp.h\fR" include for SPP programs, defines the following
+symbolic constants for each of the static overlay colors:
+.sp 0.5
+.TS
+center;
+lB l c c lB l.
+C_BLACK	202			C_CORAL	210
+C_WHITE	203			C_MAROON	211
+C_RED	204			C_ORANGE	212
+C_GREEN	205			C_KHAKI	213
+C_BLUE	206			C_ORCHID	214
+C_YELLOW	207			C_TURQUOISE	215
+C_CYAN	208			C_VIOLET	216
+C_MAGENTA	209			C_WHEAT	217
+.TE
+.NH 2
+Marker Types
+.LP
+	Currently supported marker types include: \fI
+.TS
+center;
+l l l l l.
+Point	Line	Box	Polyline	Polygon
+Circle	Circular Annuli	Ellipse	Elliptical Annuli	Text		
+.TE
+.LP
+	\fRThe "\fIcdl.h\fR" include file for C programs, the
+"\fIcdlftn.inc\fR" include for fortran programs, or the "\fIcdlspp.h\fR"
+include file SPP programs, defines the following symbolic constants for
+each of the defined \fIPoint\fR marker types:
+.TS
+center;
+lB r c c lB r.
+M_FILL	1			M_CIRCLE	64
+M_POINT	2			M_STAR	128
+M_BOX	4			M_HLINE	256
+M_PLUS	8			M_VLINE	512
+M_CROSS	16			M_HBLINE	1024
+M_DIAMOND	32			M_VBLINE	2048
+.TE
+.LP
+	Point markers are drawn using the \fBcdl_markPoint()\fR procedure,
+point types may be logically \fIOR\fR'd to create composite markers, closed
+shapes such as a circles, diamonds, or squares may be \fIOR\fR'd with the
+M_FILL flag to flood-fill the point with the current overlay color.
+.NH 3
+Point
+.LP
+	The \fBcdl_markPoint()\fR procedure is used to mark a specific point
+on the image using one of the marker types listed above.  The marker is 
+centered at the coordinates specified by the \fIx\fR and \fIy\fR arguments,
+\fItype\fR is an integer flag indicating what kind of marker to draw and 
+may be a composite type by logically ORing two or more marker types.
+\fISize\fR is the width and height of the marker measured in pixel unxits, 
+and \fIcolor\fR is the color used to draw the marker.  If the \fInumber\fR
+argument is greater than zero that number will be drawn next to the point
+as a label, creating text labels for point markers can be done using the
+\fIcdl_markPointLabel\fR procedure.
+.LP
+	Most marker names are fairly obvious but several are worth special
+mention:  The M_DIAMOND, M_CIRCLE and M_BOX marker types may be logically
+\fIOR\fRed with the M_FILL flag to produce a filled marker type.  Unless
+\fIOR\fRd with the M_POINT flag all point markers will leave the center
+pixel unchanged.  The M_HLINE and M_VLINE markers are most useful in
+astronomical applications to mark an individual star, they are horizontal
+and vertical lines respectively with a gap in the middle third of the marker
+(the M_HBLINE and M_VBLINE are identical but with a width of 3 pixels).
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPoint (CDLPtr cdl, int x, int y, int number,
+	    int size, int type, int color)\fR
+	\f(CWint cdl_markPointLabel (CDLPtr cdl, int x, int y, char *label
+	    int size, int type, int color)\fR
+.fi
+.NH 3
+Line
+.LP
+	The \fBcdl_markLine()\fR procedure is used to draw a line of the
+specified color between points (\fIxs,ys\fR) and (\fIxe,ye\fR).
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markLine (CDLPtr cdl, int xs, int ys, int xe, int ye,
+	    int color)\fR
+.fi
+.NH 3
+Box
+.LP
+	The \fBcdl_markBox()\fR procedure is used to draw a box of the
+specified color with endpoints specified by (\fIlx,ly\fR) and (\fIux,uy\fR).
+If the \fIfill\fR flag is set the box will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markBox (CDLPtr cdl, int lx, int ly, int ux, int uy,
+	    int fill, int color)\fR
+.fi
+.NH 3
+Circle
+.LP
+	The \fBcdl_markCircle()\fR procedure is used to draw a circle of the
+specified color with a center at (\fIx,y\fR) and radius \fIradius\fR.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCircle (CDLPtr cdl, int x, int y, int radius,
+	    int fill, int color)\fR
+.fi
+.NH 3
+Polyline
+.LP
+	The \fBcdl_markPolyline()\fR procedure is used to draw a line
+connecting the \fInpts\fR points specified by the \fIxpts\fR and
+\fIypts\fR array in the desired \fIcolor\fR.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPolyline (CDLPtr cdl, int *xpts, int *ypts,
+	    int npts, int color)\fR
+.fi
+.NH 3
+Polygon
+.LP
+	The \fBcdl_markPolygon()\fR procedure is used to draw a closed
+polygon consisting of \fInpts\fR vertices specified by the \fIxpts\fR and
+\fIypts\fR array in the desired \fIcolor\fR.  The last point in the array
+will automatically be connected to the first point by the procedure.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPolygon (CDLPtr cdl, int *xpts, int *ypts,
+	    int npts, int fill, int color)\fR
+.fi
+.NH 3
+Ellipse
+.LP
+	The \fBcdl_markEllipse()\fR procedure is used to draw an ellipse of the
+specified color with a center at (\fIx,y\fR) and semimajor-axis \fIxrad\fR
+and semiminor-axis \fIyrad\fR pixels long.  A rotation angle for the ellipse
+may be specified by passing a non-zero \fIangle\fR argument, the angle is
+measured in degrees from the positive x-axis.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markEllipse (CDLPtr cdl, int x, int y, int xrad,
+	    int yrad, float ang, int fill, int color)\fR
+.fi
+.NH 3
+Circular Annuli
+.LP
+	The \fBcdl_markCircAnnuli()\fR procedure is used to draw
+\fInannuli\fR circles separated by \fIsep\fR pixels each.  The circle is
+centered at (\fIx,y\fR) with an initial radius of \fIradius\fR pixels.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCircAnnuli (CDLPtr cdl, int x, int y, int radius,
+	    int nannuli, int sep, int color)\fR
+.fi
+.NH 3
+Elliptical Annuli
+.LP
+	The \fBcdl_markEllipAnnuli()\fR procedure is used to draw
+\fInannuli\fR ellipses separated by \fIsep\fR pixels each.  The ellipse is
+centered at (\fIx,y\fR) with an initial semimajor and semiminor axis 
+specified by the \fIxrad\fR and \fIyrad\fR arguments.  Each ellipse will
+be optionally rotate by an \fIangle\fR degrees as measured from the positive
+x-axis.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markEllipAnnuli (CDLPtr cdl, x, y, xrad, yrad, ang,
+	    int nannuli, int sep, int color)\fR
+.fi
+.NH 3
+Text
+.LP
+	The \fBcdl_markText()\fR procedure is used to draw a text string
+specified by \fIstr\fR argument with an initial position at (\fIx,y\fR)
+and optionally rotated by \fIangle\fR degrees as measured from the positive
+x-axis.  The default \fIsize\fR is 1.0 and is approximately a 6x13 font,
+the font size may be scaled by any fractional amount.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markText (CDLPtr cdl, int x, int y, char *str,
+	    float size, float angle, int color)\fR
+.fi
+.NH 2
+Text Fonts
+.LP
+	The \fBcdl_setFont()\fR procedure is used to choose between one
+of four available fonts as the text marker default: Roman, Greek, Futura,
+Bold and Times respectively.  By default the Roman font will be used. 
+The width of the lines used to draw the text may also be set. 
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFont (CDLPtr cdl, int font)\fR
+	\f(CWvoid cdl_setTextWidth (CDLPtr cdl, int width)\fR
+.fi
+.sp 0.5
+A complete listing of the Greek character mappings can be found in the
+file 'greek.ps' in the 'doc' subdirectory of the CDL distribution.
+	The \fIRoman\fR font is the font implemented in the original version
+of the CDL and works well for most applications.  Both the \fIGreek\fR and
+\fITimes\fR fonts are hi-resolution fonts which work best for larger frame
+buffers but can produce publication quality text.  The \fIFutura\fR font
+is a simpler font which can produce better results than the default on small
+size frame buffers.  A \fIBold\fR font automatically increases the text line
+width by one pixel over the current setting and may be used with any font.
+.NH 3
+In-Line Font Changes
+.LP
+	Text markers are drawn using the font selected with
+the \fIcdl_setFont()\fR
+routine, however fonts may be change within a string itself (e.g. to set
+a Greek character) using a \\f escape sequence.  The escape is followed 
+by the character 'R' to set a Roman font, 'G' for Greek, 'F' for
+futura, 'B' for bold 
+and 'T' for Times.  Any number of escapes are permitted within a string,
+the font change will remain in effect until it is changed, or the end of 
+string at which point any subsequent strings will again be drawn with the
+default font.  Additionally a 'P' in the escape sequence will change the
+font to the one previously used, whatever that may be.
+.LP
+	The CDL also supports a sub/superscripting of text which can only
+be done with the font escapes.  In this case the escape character followed by
+a 'U' produces a superscript and a 'D' produces a subscript.  The changes may
+be nested permitting several levels of sub/superscripts,  these escapes may
+also be used in conjunction with a font change to cause the sub/superscript
+to be drawn with a different font.  A superscript escape will remain in
+effect until the end of the string or a \\fD escape is seen.  Similarly a
+subscript remains in effect until the end of the string of a \\fU escape.
+Sub/superscripted text is drawn using a smaller font size, there is presently
+no way to specify a different size for the sub/superscripted text.
+.TS
+center;
+cb s
+l l.
+Summary of Font Escapes
+.sp 0.5
+\\\\fR	change to Roman font
+\\\\fG	change to Greek font
+\\\\fF	change to Futura font
+\\\\fT	change to Times font
+\\\\fB	change to bold font
+\\\\fP	change to previous font
+\\\\fU	begin relative superscripted text
+\\\\fD	begin relative subscripted text
+.TE
+.NH 2
+Line Widths and Styles
+.LP
+	The \fBcdl_setLineWidth()\fR procedure can be used to set the line
+width used to draw polygon or polyline markers, point markers will not
+be affected.  The \fBcdl_setLineStyle()\fR procedure is used to set a line
+style other than solid.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setLineWidth (CDLPtr cdl, int width)\fR
+	\f(CWvoid cdl_setLineStyle (CDLPtr cdl, int style)\fR
+.fi
+.LP
+	\fRThe "\fIcdl.h\fR" include file for C programs, the
+"\fIcdlftn.inc\fR" include for fortran programs, or the "\fIcdlspp.h\fR"
+include file SPP programs, defines the following symbolic constants for
+each of the defined line styles:
+.TS
+center;
+lB r c c lB r.
+L_SOLID	0			L_DASHED	1
+L_DOTTED	2			L_DOTDASH	3
+L_HOLLOW	4			L_SHADOW	5
+.TE
+.LP
+	The \fIhollow\fR line style is drawn with a linewidth of five pixels,
+two pixels of color, a black line, and two pixels of color.  It is best 
+used when the marker will traverse extreme changes in brightness, due to the
+thickness of the line it may work best with larger frame buffers.  The 
+\fIshadow\fR linestyle is drawn as two pixels of color and two pixels of black
+and should be used for similar brightness variations, however it effectively
+shows up as a line only two pixels wide and may be preferred for medium or
+smaller frame buffers.
+.LP
+	The three dashed linestyles are drawn using "gap" spacings of 5
+pixels in between line segments.  Whether or not these gaps are resolved 
+depends on the size of the frame buffer being used and the magnification
+used in the display server.  By default they should resolve completely 
+using frame buffers up to 1024x1024 pixels, or magnification factors
+displaying 1024x1024 pixels.  If larger sizes are needed the image should
+be subsampled prior to display to maintain the marker resolution needed 
+for these linestyles.
+
+.NH 2
+Deleting Markers
+.LP
+	When markers are drawn the underlying subraster is first saved to
+an internal structure, erasure is done by simply redisplaying the saved
+raster.  Problems can arise however when markers overlap;  when deleting a
+marker that is \fIunder\fR another marker the original pixels can overwrite
+the pixels of the marker on top.  This is an unfortunate side effect of the
+simple scheme used in this version of the package, users can call the
+\fBcdl_redrawOverlay()\fR procedure to help clean up any artifacts left
+behind.
+.NH 3
+Individual Markers
+.LP
+	The \fBcdl_deleteMark()\fR procedure is used to delete a single
+marker from the display().  The (\fIx,y\fR) argument is either the center
+position of the marker if that is know by the application, more typically
+it will be an approximate position.  In the latter case the marker whose
+center is closest to this position will be deleted.  For markers with no
+defined center  the distance used to decide if the marker should be
+deleted is the distance from the argument position to the edge of the 
+marker.  For example, distance from a box or polygon is measured as the
+distance from to one of the sides, for text it is the distance to the
+start of the text string.  There is no way to \fIun\fRdelete a marker other
+than to redraw it.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_deleteMark (CDLPtr cdl, int x, int y)\fR
+.fi
+.NH 3
+The Entire Overlay
+.LP
+	To erase all markers currently displayed use the
+\fBcdl_clearOverlay()\fR procedure.  Markers are erased in the reverse order
+they were drawn to help reduce the chance that overlaying markers will leave
+stray pixels.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_clearOverlay (CDLPtr cdl)\fR
+.fi
+.NH 2
+Redraw
+.LP
+	The \fBcdl_redrawOverlay()\fR procedure can be used to redraw all
+markers currently in the display list.  This is sometimes needed when 
+subraster I/O procedures are used to redisplay subregions and overwrite
+existing markers.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_redrawOverlay (CDLPtr cdl)\fR
+.fi
+.NH
+ANSI C Function Prototypes
+.LP
+	The current release of CDL provides full ANSI C function prototypes
+for all public and private procedures.  By default these will not be used 
+even on systems with native ANSI compilers, however.
+To make use of the CDL prototypes users will
+need to define the macro \fBCDL_ANSIC\fR either when compiling the program
+(using the -D option to the compiler),
+or as a definition in the program source preceding the 'cdl.h' include
+directive.
+.LP
+	For example,
+.sp 0.5
+.nf
+	\f(CW#define  CDL_ANSIC
+	#include "cdl.h"
+	     :
+	main (int argc, char **argv)
+	     :\fR
+.fi
+.sp 0.5
+or when compiling using something like
+.sp 0.5
+.nf
+	\f(CWcc -DCDL_ANSIC client.c libcdl.a -lm\fR
+.fi
+.sp 0.5
+	Note that when using CDL_ANSIC to build the client program it is
+also required that the CDL itself be built in the same way to avoid
+confusing FPE errors.  Similarly, when building client tasks that \fIdo
+not\fR
+use CDL_ANSIC you must use a version of the library that has not been
+compiled with prototypes.
+.LP
+	The reason is that the float args to the CDL procedures in the
+library, or in your task calls, are
+promoted to doubles when compiling those procedures, but may only be passed as
+floats in your code (or as double where the CDL is expecting float).  
+This means the argument stack is off by 4 bytes for each float arg and
+the values interpreted by the CDL procedure will be corrupted.
+If you're going to use the prototypes you'll
+need to edit the CDL Imakefile to define "-DCDL_ANSIC" in the EXTRA_DEFINES
+so it will use the prototypes and everything will line up.  You will then
+need to rebuild the libcdl.a as well as relink your program.
+.NH
+Fortran Language Binding Notes
+.LP
+	The Fortran language binding routines are implemented in C but
+should be accessible from any fortran program as though they were real
+fortran subroutines.  The calling sequences are the same as with the C
+library routines with the following exceptions:
+.IP
+\(bu  The CDL package pointer is maintained internally so no 'cdl' pointer is
+passed in the fortran interface.
+.IP
+\(bu  All routines which are integer procedures in the C interface return an
+extra 'ier' argument to contain the error flag.  All Fortran functions are
+implemented as subroutines.
+.IP
+\(bu  The procedure names are the same except that \fIcdl_\fR has been
+replaced with \fIcf\fR in the fortran binding.  If your compiler is
+case-sensitive then use all lower case letters.
+.LP
+The binding has been tested on a number of different platforms without 
+problems.  The procedure names haven't been restricted to the traditional
+6-character fortran names since most modern compilers can handle longer
+names, if yours isn't one of them contact \fIiraf@noao.edu\fR for help
+in changing the names.
+.LP
+	Since the CDL is implemented as a set of C routines, the one aspect
+that cannot be overlooked in the fortran binding is the between Fortran and
+C storage order for arrays.  In most cases this will not be a problem since
+the CDL routines are just passing around pointers even if they live for a 
+short while in a fortran program.  The problem comes when using the fortran
+program to read the arrays, for example in using the array returned by the
+\fBcfreadIRAF()\fR procedure, or when passing in arrays for display that
+originated in the user's fortran code.  In these cases the array \fBmust\fR
+be transposed to be interpreted correctly.  It was assumed that in most
+applications arrays returned by CDL procedures would be immediately passed
+to other CDL procedures so having the binding routines
+transpose the array to/from
+Fortran storage order was unnecessarily inefficient.  This may be changed in
+later releases if required.
+
+.NH
+SPP Language Binding Notes
+.LP
+	The SPP language binding is experimental and is intended to provide
+a way to quickly prototype tasks, it should not be used in production code
+as it may not be as portable as the rest of the task.  In essence this 
+binding is a layer on top of the Fortran binding since most IRAF platforms
+still use Fortran as the intermediate code.  The calling sequences are the
+same as with the Fortran library routines with the following caveats:
+.IP
+\(bu  The 'cdlspp.h' SPP include file is required by all files which call
+CDL routines.  The binding names are actually SPP macros to resolve the
+current 6 character limit on procedure names.
+.IP
+\(bu  All character string arguments must be dimensioned to at least SZ_FNAME 
+characters in length.
+.IP
+\(bu  The CDL package pointer is maintained internally so no 'cdl' pointer is
+passed in the fortran interface.
+.IP
+\(bu  All routines which are integer procedures in the C interface return an
+extra 'ier' argument to contain the error flag.  All SPP functions are
+implemented as subroutines.
+.IP
+\(bu  On HPUX or IBM RS6000 systems the 'cdlspp.h' file must be edited to
+remove the trailing underscores from the procedure name macros.  This is
+because on these platforms the fortran compiler will not append an
+underscore to the SPP symbols as it does on other platforms.
+
+.NH
+IIS Protocol Description
+.LP
+	The communications protocol used by the CDL and servers such as 
+\fIXImtool\fR and \fISAOimage\fR, is a slightly modified version of that used
+by the IIS Model 70.  All operations are initiated by sending a header 
+packet containing a \fIthing id\fR (tid) and \fIsubunit\fR selecting the
+function to be performed, optionally followed by data up to 32K bytes long.
+The IIS header packet used is defined as
+.nf
+		\f(CWstruct  iism70 {
+        		short   tid;
+        		short   thingct;
+        		short   subunit;
+        		short   checksum;
+        		short   x, y, z;
+        		short   t;
+		};\fR   
+.fi
+
+The \fIthing count\fR field contains the negative number of bytes of data
+that will be sent following the header packet.  The IIS header checksum is
+computed as 
+.nf
+\f(CW
+    checksum = 0177777 - (tid + subunit + thingct + x + y + z + t);
+\fR
+.fi
+The four IIS registers are set differently depending on the operation, a
+summary of the header packets for each operation is summarized below. 
+
+.KS
+.ce 1
+\fBIIS Header Packet Summary\fR
+.TS
+tab(:);
+c c c c c c c c c.
+:TID:Subunit:Tct:X:Y:Z:T:Data
+.T&
+l | l | l | c | c | c | l | l | l |.
+:_:_:_:_:_:_:_:_
+Read Data:IIS_READ\fB|\fPPACKED:MEMORY:-NB:x:y:fr:-:NB
+Write Data:IIS_WRITE\fB|\fPPACKED:MEMORY:-NB:x:y:fr:-:NB
+Read Cursor:IIS_READ:IMCURSOR:-:-:-:-:-:-
+Write Cursor:IIS_WRITE:IMCURSOR:-:x:y:wcs:-:-
+Set Frame:IIS_WRITE:LUT\fB|\fPCOMMAND:-1:-:-:-:-:2
+Erase Frame:IIS_WRITE \fB|\fP fb:FEEDBACK:-:-:-:fr:-:-
+
+Old Write WCS:IIS_WRITE\fB|\fPPACKED:WCS:-N:-:-:fr:fb:320
+Old Read WCS:IIS_READ:WCS:-:-:-:fr:wcs:320
+
+WCS Version?:IIS_READ:WCS:-:1:1:-:-:320
+WCS by Number?:IIS_READ:WCS:-:1:-:fr:wcs:1024 
+New Write WCS:IIS_WRITE\fB|\fPPACKED:WCS:-N:1:-:fr:fb:1024
+New Read WCS:IIS_READ:WCS:-:1:-:fr:wcs:1024
+:_:_:_:_:_:_:_:_
+.TE
+.KE
+.TS
+l l l.
+Where	NB	= number of bytes expected or written
+	x	= x position of operation in frame buffer coords
+	y	= y position of operation in frame buffer coords
+	fr	= frame number (passed as bitflag (i.e. 1, 2 ,4 8, etc)
+	fb	= frame buffer config number (zero indexed)
+	N	= length of WCS string
+	wcs	= WCS number (usually zero)
+	Data	= the number of bytes of data to be read or written following the header packet.
+
+	IIS_WRITE	 = 0400000
+	IIS_READ	 = 0100000   
+	COMMAND	 = 0100000
+	PACKED	 = 0040000
+	IMC_SAMPLE	 = 0040000
+		
+	MEMORY	 = 001
+	LUT	 = 002
+	FEEDBACK	 = 005
+	IMCURSOR	 = 020
+	WCS	 = 021
+.TE
+.LP
+TID fields can be logically OR'd with the PACKED flag indicating the number
+of data bytes is exactly \fIthingct\fR bytes long, otherwise \fIthingct\fR
+must be specified as half the number of data bytes.  In a cursor read, if
+the IIS_READ flag is OR'd with IMC_SAMPLE the logical cursor position (i.e.
+the last value read or set) is returned immediately, otherwise the server
+will wait for a keystroke to be hit before returning a string containing the
+(x,y) position, wcs of the read, and the keystroke.  When setting the frame
+you must send a short integer in the data containing the frame selected.
+
+.NH
+VXIMTOOL Proxy/Display Server Usage
+.LP
+\fIVXIMTOOL\fR is a image display server process much like \fIXIMTOOL\fR,
+except that all it normally does is respond to datastream requests
+to read and write to internal frame buffers maintained as arrays in memory.
+Multiple frame buffers and frame buffer configurations are supported.  It
+can be used to debug CDL programs by printing out the 
+protocol packets received, or can simply be used as a dummy server in cases
+where no image display is really needed.  By enabling the \fI-proxy\fR
+flag the server can also be used to repeat the datastream requests to a
+list of other servers, effectively splitting the image display to a number
+of other servers.  See the \fIvximtool\fR man page for details on other 
+command-line arguments and usage.
+.LP
+The program was originally intended as a debugging tool, either in the
+development of CDL clients directly or in cases where the display may
+need to go to separate screens as part of a larger project.  For example,
+engineers may wish to "eavesdrop" on the system by viewing images displayed
+by CDL clients used as part of a data acquisition system.  It can also be
+used as a memory-only display server for CDL clients which need to be run
+in the background as part of a pipeline processing system requiring a
+frame buffer for image marking.
+.LP
+In proxy mode the program acts as a relay for the IIS datastream packets,
+sending image data, frame requests, etc. to a list of other servers specified
+on the command line.  The effect of this is to allow a client to display to
+this program which then re-displays to each of the other named servers.  
+Of course CDL clients can also do this internally by opening multiple
+connections, using \fIvximtool\fR in proxy mode adds the functionality to
+programs which may use this feature only ocasionally.  A maximum of 8 servers
+may be named, they may be either on the local host or a remote machine 
+and connections can be established using either fifos or sockets.  See
+above or the \fIvximtool\fR man page for details on how to specify the
+server connection.
+.LP
+The current implementation has a few restrictions users should keep in mind:
+.IP
+\(bu  The time to display an image or perform any output operation scales
+with the number of connected hosts.  Each IIS packet is forwarded to each
+host in turn before processing the next input packet, and connection over a slow
+network will delay the entire process.
+.IP
+\(bu  Cursor and image readback are done by sending the request \fIonly\fR to
+the first server named on the command line.  This is done to avoid forcing
+a cursor mode on all servers which cannot be terminated when a response is
+received from only one server, and means that the first server named should
+be the one used to control interactive sessions.  The remaining servers
+however can still respond to cursor requests from other applications
+connected to that server on another channel.
+.IP
+\(bu  All named servers must be running prior to starting the proxy server.  
+The connection to the remote servers is established when this task is first
+run and if no server is running that connection will be ignored. The task will
+exit if no remote servers can be found for display.
+.IP
+\(bu  Any connected server that shuts down while the proxy server is running
+is likely to cause the program to crash on the next display. 
+.bp
+.NH
+C Interface Summary
+.LP
+.in 0.5i
+#include  "\fBcdl.h\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+CDLPtr \fBcdl_open\fR	(imtdev)
+int \fBcdl_displayPix\fR	(cdl, pix, nx, ny, bitpix, frame, fbconfig, zscale)
+char \fBcdl_readCursor\fR	(cdl, sample, x, y, wcs, key)
+int \fBcdl_setCursor\fR	(cdl, x, y, wcs)
+int \fBcdl_setWCS\fR	(cdl, name, title, a, b, c, d, tx, ty, z1, z2, zt)
+int \fBcdl_getWCS\fR	(cdl, name, title, a, b, c, d, tx, ty, z1, z2, zt)
+void \fBcdl_setFrame\fR	(cdl, frame)
+int \fBcdl_clearFrame\fR	(cdl)
+void \fBcdl_close\fR	(cdl)
+
+int \fBcdl_setMapping\fR	(cdl, region, sx,sy,snx,sny, dx,dy,dnx,dny, ref)
+int \fBcdl_getMapping\fR	(cdl, region, sx,sy,snx,sny, dx,dy,dnx,dny, ref)
+int \fBcdl_queryMap\fR	(cdl, wcs, region, sx,sy,snx,sny, dx,dy,dnx,dny, objref)
+
+int \fBcdl_displayIRAF\fR	(cdl, fname, band, frame, fbconfig, zscale)
+int \fBcdl_isIRAF\fR	(fname)
+int \fBcdl_readIRAF\fR	(fname, band, pix, nx, ny, bitpix, title)
+
+int \fBcdl_displayFITS\fR	(cdl, fname, frame, fbconfig, zscale)
+int \fBcdl_isFITS\fR	(fname)
+int \fBcdl_readFITS\fR	(fname, pix, nx, ny, bitpix, title)
+
+void \fBcdl_computeZscale\fR	(cdl, pix, nx, ny, bitpix, z1, z2)
+void \fBcdl_zscaleImage\fR	(cdl, pix, nx, ny, bitpix, z1, z2)
+
+int \fBcdl_printPix\fR	(cdl, cmd, pix, nx, ny, annotate)
+int \fBcdl_printPixToFile\fR	(cdl, fname, pix, nx, ny, annotate)
+
+int \fBcdl_readImage\fR	(cdl, pix, nx, ny)
+int \fBcdl_readFrameBuffer\fR	(cdl, pix, nx, ny)
+int \fBcdl_readSubRaster\fR	(cdl, lx, ly, nx, ny, pix)
+int \fBcdl_writeSubRaster\fR	(cdl, lx, ly, nx, ny, pix)
+
+void \fBcdl_selectFB\fR	(cdl, nx, ny, fb, w, h, nf, reset)
+void \fBcdl_setFBConfig\fR	(cdl, configno)
+void \fBcdl_getFBConfig\fR	(cdl, configno, w, h, nf)
+void \fBcdl_lookupFBSize\fR	(cdl, configno, w, h, nf)
+
+void \fBcdl_setZTrans\fR	(cdl, ztrans)
+void \fBcdl_setZScale\fR	(cdl, z1, z2)
+void \fBcdl_setSample\fR	(cdl, nsample)
+void \fBcdl_setSampleLines\fR	(cdl, nlines)
+void \fBcdl_setContrast\fR	(cdl, contrast)
+void \fBcdl_setName\fR	(cdl, imname)
+void \fBcdl_setTitle\fR	(cdl, imtitle)
+
+void \fBcdl_getFrame\fR	(cdl, frame)
+void \fBcdl_getZTrans\fR	(cdl, ztrans)
+void \fBcdl_getZScale\fR	(cdl, z1, z2)
+void \fBcdl_getSample\fR	(cdl, nsample)
+void \fBcdl_getSampleLines\fR	(cdl, nlines)
+void \fBcdl_getContrast\fR	(cdl, contrast)
+void \fBcdl_getName\fR	(cdl, imname)
+void \fBcdl_getTitle\fR	(cdl, imtitle)
+
+int \fBcdl_mapFrame\fR	(cdl, frame)
+int \fBcdl_markCoordsFile\fR	(cdl, fname, type, size, color, label)
+int \fBcdl_markPoint\fR	(cdl, x, y, number, size, type, color)
+int \fBcdl_markPointLabel\fR	(cdl, x, y, label, size, type, color)
+int \fBcdl_markLine\fR	(cdl, xs, ys, xe, ye, color)
+int \fBcdl_markBox\fR	(cdl, lx, ly, ux, uy, fill, color)
+int \fBcdl_markPolygon\fR	(cdl, xarray, yarray, npts, fill, color)
+int \fBcdl_markPolyline\fR	(cdl, xarray, yarray, npts, color)
+int \fBcdl_markCircle\fR	(cdl, x, y, radius, fill, color)
+int \fBcdl_markCircAnnuli\fR	(cdl, x, y, radius, nannuli, sep, color)
+int \fBcdl_markEllipse\fR	(cdl, x, y, xrad, yrad, rotang, fill, color)
+int \fBcdl_markEllipAnnuli\fR	(cdl, x, y, xrad, yrad, ang, nannuli, sep, color)
+int \fBcdl_markText\fR	(cdl, x, y, str, size, angle, color)
+int \fBcdl_setFont\fR	(cdl, font)
+int \fBcdl_setTextWidth\fR	(cdl, width)
+int \fBcdl_setLineWidth\fR	(cdl, width)
+int \fBcdl_setLineStyle\fR	(cdl, style)
+int \fBcdl_deleteMark\fR	(cdl, x, y)
+int \fBcdl_clearOverlay\fR 	(cdl)
+int \fBcdl_redrawOverlay\fR 	(cdl)
+.TE
+
+.bp
+.NH
+C Example Tasks
+.LP
+	The examples shown here are for demonstration purposes only.  They
+are based on working example tasks in the CDL source \fIexamples\fR
+subdirectory, see the programs there for the full program listing.
+
+.NH 2
+Display Example
+.LP
+.ps -2
+.vs -2
+.nf
+\f(CW
+#include <stdio.h>
+#include <unistd.h>
+#include "cdl.h"
+
+/*  \fIDISPLAY -- Example task to display an image as a command-line task.
+  *  This task is meant to show three ways the CDL can be used to display
+  *  an image, see the code comments for a description of each method.
+  *
+  *  Examples:
+  *      To display a simple IRAF or FITS file:
+  *	    % ./display -frame 2 image.imh
+  *         % ./display image.fits
+  *
+  *      To display a FITS file as a raw image:
+  *          % ./display -nx 512 -ny 512 -depth 16 -hskip 5760 -raw dpix.fits
+  *
+  *  Usage:
+  * 	display [-depth N] [-fits] [-frame N] [-fbconfig N] [-hskip N]
+  *	    [-iraf] [-nozscale] [-nx N] [-ny N] [-raw] [-zscale] file\fP
+ */
+
+#define NONE	-1
+#define	IRAF	 0
+#define	FITS	 1
+#define	RAW	 2
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname, title[128];
+	int	i, status = 0, frame = 1, fbconfig = 0, zscale = 1;
+	int	format = NONE, nx = 0, ny = 0, depth = 8, hskip = 0;
+	float 	z1, z2;
+	int	fb_w, fb_h, nf;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	    for (i=1; i < argc; i++) {
+            if (strcmp (argv[i], "-depth") == 0)         depth = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-fits") == 0)     format = FITS;
+            else if (strcmp (argv[i], "-frame") == 0)    frame = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-fbconfig") == 0) fbconfig = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-hskip") == 0)    hskip = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-iraf") == 0)     format = IRAF;
+            else if (strcmp (argv[i], "-nozscale") == 0) zscale = 0;
+            else if (strcmp (argv[i], "-nx") == 0)       nx = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-ny") == 0)       ny = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-raw") == 0)      format = RAW;
+            else if (strcmp (argv[i], "-zscale") == 0)   zscale = 1;
+	    }
+	}
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	fname = argv[argc-1];
+
+	/* \fIMETHOD 1:  Displays the image using the high-level format display
+ 	  * call.  Display as an IRAF image if the option was set indicating
+	  * this is the format, otherwise test the file to see if it is anyway.\fP
+	 */
+	if (format == IRAF || (format == NONE && \fBcdl_isIRAF\fP (fname))) {
+	    status = \fBcdl_displayIRAF\fP (cdl, fname, 1, frame, FB_AUTO, zscale);
+
+	/* \fIMETHOD 2:  Uses the CDL procedure for getting image pixels from
+	  * a known format, minimal work required to display an image.  The
+ 	  * point here is that you can use this method to process the image
+	  * yourself prior to display, e.g. subsample the pixels, apply a user
+	  * LUT, etc but still use the CDL to get the raw image and do the
+	  * display.\fP
+	 */
+	} else if (format == FITS || (format == NONE && \fBcdl_isFITS\fP (fname))) {
+
+	    /* \fIGet the FITS image pixels, exit w/ an error status if something
+	          * went wrong, the procedure will print what that was.\fP
+	     */
+	    if (\fBcdl_readFITS\fP (fname, &pix, &nx, &ny, &depth, title)) {
+        	\fBcdl_close\fP (cdl);		/* \fIclose the package\fP  */
+        	exit (1);			/* \fIexit w/ error code\fP */
+	    }
+
+	    /* \fINow select a frame buffer large enough for the image. The 
+	          * fbconfig number is passed in the WCS packet, but the display
+	          * call below will compute the correct WCS for the image and
+	          * transmit that prior to display, all we're doing here is
+	          * setting up the FB to be used.\fP
+	     */
+	    if (fbconfig == 0)
+	        \fBcdl_selectFB\fP (cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf, 0);
+
+	    /* \fILastly, display the pixels to the requested frame, do any
+	          * zscaling requested using the CDL procedure.\fP
+	     */
+	    status = \fBcdl_displayPix\fP (cdl, pix, nx, ny, depth, frame, 
+		fbconfig, zscale);
+
+	/* \fIMETHOD 3:  Displays an image of raw pixels.  The client code is
+	  * responsible for reading the image and calling all the procedures
+	  * needed for image display, initialize the frame, zscaling pix, etc.
+	  * While we assume a simple raster format in this program, the user
+	  * code can read a compressed image format such as GIF, mosaic multiple
+	  * images for display as a single image, or just about anything that
+	  * produces a raster for display. The intent here is to show all the
+	  * lowest level calls needed for displaying the image.\fP
+	 */
+	} else if (format == RAW) {
+	    FILE	*fd;
+	    int		lx, ly;
+
+	    if (nx == 0 || ny == 0) {
+	        fprintf (stderr, "No size given for raw data.\\n");
+	        exit (1);
+	    }
+
+	    /* \fIOpen the image file if we can.\fP */
+	    if (fd = fopen (fname, "r")) {
+
+		/* \fISeek to the offset specified.\fP */
+		lseek (fileno(fd), (off_t) hskip, SEEK_SET);
+
+		/* \fIAllocate the pixel pointer and read the data.\fP */
+		pix = (unsigned char *) malloc (nx * ny * (depth / 8));
+		fread (pix, depth/8, nx * ny, fd);
+
+		/* \fIIf we're zscaling and depth is more than 8-bits, do that.\fP */
+		if (zscale && depth > 8) {
+		    \fBcdl_computeZscale\fP (cdl, pix, nx, ny, depth, &z1, &z2);
+		    \fBcdl_zscaleImage\fP (cdl, &pix, nx, ny, depth, z1, z2);
+		}
+
+		/* \fINow select a frame buffer large enough for the image.  
+		 * We'll ask that this be reset but the change won't go to
+		 * the server until we send in the WCS below.\fP
+		 */
+		\fBcdl_selectFB\fP (cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf, 1);
+
+		/* \fICompute the image placement so it's centered in the frame,
+		 * but note the cdl_writeSubRaster() routine can place an
+		 * arbitrary raster anywhere in the frame buffer.\fP
+		lx = (fb_w / 2) - (nx / 2);
+		ly = fb_h - ((fb_h / 2) + (ny / 2));
+
+		/* \fISet the mapping we'll send with the WCS which must be
+		 * called before the cdl_setWCS() call since the data is sent
+		 * with the WCS and not as a separate call.\fP
+		 *
+		 * \fRFirst we must compose a node!path prefix for the image.\fP */
+		 */
+		gethostname (node, 512);
+		(void) getcwd (path, 512);
+		if (*fname == '/')
+		    (void) sprintf (path_prefix, "%s!%s", node, fname);
+		else
+		    (void) sprintf (path_prefix, "%s!%s/%s", node, path, fname);
+
+		\fBcdl_setMapping\fP (cdl, "image", 0., 0., nx, ny, lx, ly, nx, ny,
+		   path_prefix);
+
+		/* \fIFor the WCS we assume a simple linear transform where the
+		 * image is Y-flipped, the (x,y) translation is computed so
+		 * it is correct for an frame buffer >= than the image size.\fP
+		 */
+		\fBcdl_setWCS\fP (cdl, fname, "", 1., 0., 0., -1., 
+		    (float) (nx / 2) - (fb_w / 2) + 1,      /* \fIX trans.\fP    */
+		    (float) (fb_h / 2) + (ny / 2),          /* \fIY trans.\fP    */
+		    z1, z2, CDL_LINEAR);                    /* \fIZ transform\fP */
+
+		/* \fIFinally, display the pixels.\fP  */
+		if (\fBcdl_writeSubRaster\fR (cdl, lx, ly, nx, ny, pix))
+		    status = 1;
+	    } else
+		status = 1;
+	} else {
+	    if (access (fname, F_OK) == 0)
+		fprintf (stderr, "'%s': unknown image format.\\n", fname);
+	    else
+		fprintf (stderr, "'%s': image does not exist.\\n", fname);
+	    status = 1;
+	}
+
+	/* \fINow just free the pixel pointer to clean up.\fP */
+	if (pix)
+	    free ((unsigned char *) pix);
+	\fBcdl_close\fP (cdl);		/* \fIclose the package\fP */
+	exit (status);
+}
+\fR
+.fi
+.vs +2
+.ps +2
+.bp
+.NH 2
+Interactive Graphics Overlay Example
+.LP
+.ps -2
+.vs -2
+.nf
+\f(CW
+#include <stdio.h>
+#include <unistd.h>
+#include <math.h>
+#include "cdl.h"
+
+/* \fI
+  *  TVMARK -- Example task for displaying an marking images.  This program
+  *  can be used to either display an image and overlay points defined in
+  *  a coordinate file, map an existing display frame for marking, or option-
+  *  ally enter a cursor command loop after either of these providing other
+  *  marking capability.  All options support minimum match.
+  *
+  *  Examples:
+  *	% tvmark dpix.fits
+  * 	% tvmark -coords coords -color 205 dpix.fits
+  *	% tvmark -frame 2
+  *	% tvmark -coords coords -interactive dpix.fits
+  *
+  *  Usage:
+  * 	tvmark [-frame N] [-fbconfig N] [-coords <file>] [-size N] [-color N]
+  *	     [-nolabel] [-fill] [-interactive] [image]\fP
+ */
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname = NULL, *cfname = NULL;
+	int	i, status = 0, fill = 0, frame = 1, fb = FB_AUTO, zscale = 1;
+	int	color = 201, label = 1, size = 9, interactive = 0;
+	float 	z1, z2;
+	int	fb_w, fb_h, nf;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	    for (i=1; i < argc; i++) {
+            if (strncmp(argv[i], "-color",4) == 0) color = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-coords",4) == 0) cfname = argv[++i];
+            else if (strncmp(argv[i], "-fbconfig",3) == 0) fb = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-fill",4) == 0) fill = 1;
+            else if (strncmp(argv[i], "-frame",3) == 0) frame = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-interactive",4) == 0) interactive = 1;
+            else if (strncmp(argv[i], "-nolabel",4) == 0) label = 0;
+            else if (strncmp(argv[i], "-nozscale",4) == 0) zscale = 0;
+            else if (strncmp(argv[i], "-size",2) == 0) size = atoi (argv[++i]);
+	    else 
+	        fname = argv[i];
+	    }
+	}
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* \fIIf an image was specified display it first, otherwise assume the
+	  * image has already been loaded in the frame and mark that.\fP
+	 */
+	if (fname) {
+	    if (\fBcdl_isIRAF\fP (fname))
+	        status = \fBcdl_displayIRAF\fP (cdl, fname, 1, frame, fb, zscale);
+	    else if (\fBcdl_isFITS\fP (fname))
+	        status = \fBcdl_displayFITS\fP (cdl, fname, frame, fb, zscale);
+	    else {
+		if (access (cfname, F_OK) == 0)
+	            fprintf (stderr, "'%s': unknown image format.\\n", fname);
+	 	else
+	            fprintf (stderr, "'%s': image doesn't exist.\\n", fname);
+	        status = 1;
+	    }
+	    if (status)  goto err_;
+	} else {
+	
+	    /* \fIIf we've requested a special frame buffer, set it now.\fP */
+	    if (fb > 0)
+		  \fBcdl_setFBConfig\fP (cdl, fb);
+
+	    /* \fIMap the current display frame for use as an image.\fP */
+	    \fBcdl_mapFrame\fP (cdl, frame);
+	}
+
+	/* \fIIf a coordinate file was specified read the file and mark those
+	  * coords with points.\fP
+	 */
+	if (cfname) 
+            \fBcdl_markCoordsFile\fP (cdl, cfname, M_STAR, size, color, label);
+
+	/* \fILastly, start up an interactive cursor loop if needed.\fP */
+	if (interactive)
+	    tvmInteractive (cdl, label, fill, color, size);
+	
+	/* \fIClose the package and clean up.\fP */
+err_:	\fBcdl_close\fP (cdl);			
+	exit (status);
+}
+
+/*  \fITVMINTERACTIVE -- Process commands interactively.\fP  */
+
+tvmInteractive (cdl, label, fill, color, size)
+CDLPtr	cdl;
+int	label, fill, color, size;
+{
+	float   angle = 0.0, rx, ry, txsize = 1.;
+	int     nx, ny, i, x, y, x2, y2, wcs;
+	int     number=1, radius=11, xrad=11, yrad=6, nannuli=3, sep=5;
+	char    key, cmd[SZ_NAME], str[SZ_NAME];
+	unsigned char *pix;
+
+	/* \fIProcess commands until a 'q' keystroke is hit.\fP */
+	while (\fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key) != 'q') {
+	    x = (int) (rx + 0.5);	/* \fIconvert to int pixels\fP */
+	    y = (int) (ry + 0.5);
+
+	    switch (key) {
+	    case ':':			/* \fIprocess a colon command\fP */
+		putchar (':');
+		gets (str);
+		for (i=0; str[i] != ' ' && str[i]; i++)
+		    cmd[i] = str[i];
+		cmd[i++] = '\0';
+
+		if (strcmp (cmd, "angle") == 0)        angle = atof (&str[i]);
+		else if (strcmp (cmd, "color") == 0)   color = atoi (&str[i]);
+		else if (strcmp (cmd, "fill") == 0)    fill = atoi (&str[i]);
+		else if (strcmp (cmd, "number") == 0)  number = atoi (&str[i]);
+		else if (strcmp (cmd, "nannuli") == 0) nannuli = atoi (&str[i]);
+		else if (strcmp (cmd, "label") == 0)   label = atoi (&str[i]);
+		else if (strcmp (cmd, "sep") == 0)     sep = atoi (&str[i]);
+		else if (strcmp (cmd, "size") == 0)    size = atoi (&str[i]);
+		else if (strcmp (cmd, "txsize") == 0)  txsize = atof (&str[i]);
+		else if (strcmp (cmd, "xrad") == 0)    xrad = atoi (&str[i]);
+		else if (strcmp (cmd, "yrad") == 0)    yrad = atoi (&str[i]);
+		else if (strcmp (cmd, "print") == 0) {
+		    \fBcdl_readFrameBuffer\fP (cdl, &pix, &nx, &ny);
+		    \fBcdl_printPix\fP (cdl, NULL, pix, nx, ny, 1);
+		} else if (strcmp (cmd, "snap") == 0) {
+		    \fBcdl_readFrameBuffer\fP (cdl, &pix, &nx, &ny);
+		    \fBcdl_printPixToFile\fP (cdl, &str[i], pix, nx, ny, 1);
+		} else if (strcmp (cmd, "status") == 0) {
+		    printf ("angle	= %-5.3g\tcolor	= %d\t", angle, color);
+		    printf ("fill	= %-5d\tnumber	= %d\\n", fill, number);
+		    printf ("nannuli	= %-5d\tsep	= %d\t", nannuli, sep);
+		    printf ("size	= %-5d\ttxsize	= %g\\n", size, txsize);
+		    printf ("xrad	= %-5d\tyrad	= %d\t", xrad, yrad);
+		    printf ("label	= %-5d\\n", label);
+		}
+		break;
+
+	    case '?':
+		/* ......\fIhelp procedures\fP */
+		break;
+
+	    case 'p':				/* \fIplus mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_PLUS, color);
+		break;
+	    case 'x':				/* \fIcross mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_CROSS, color);
+		break;
+	    case '.':				/* \fIpoint mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_POINT, color);
+		break;
+	    case '*':				/* \fIstar mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_STAR, color);
+		break;
+	    case '_':				/* \fIhoriz dash mark\fP*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_HBLINE, color);
+		break;
+	    case '|':				/* \fIvert dash mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_VBLINE, color);
+		break;
+	    case 'o':				/* \fIcircle mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_CIRCLE|fill, color);
+		break;
+	    case 's':				/* \fIsquare mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_BOX|fill, color);
+		break;
+	    case 'v':				/* \fIdiamond mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_DIAMOND|fill, color);
+		break;
+
+	    case 'b':				/* \fIBox\fP		*/
+		printf ("Hit another key to define the box...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		\fBcdl_markBox\fP (cdl, x, y, x2, y2, fill, color);
+		break;
+	    case 'c':				/* \fICircle\fP		*/
+		printf ("Hit another key to set radius ...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		radius = (int) sqrt ((double) ((x2-x)*(x2-x) + (y2-y)*(y2-y)));
+		\fBcdl_markCircle\fP (cdl, x, y, radius, fill, color);
+		break;
+	    case 'd':				/* \fIDelete marker\fP	*/
+		\fBcdl_deleteMark\fP (cdl, x, y);
+		break;
+	    case 'e':				/* \fIEllipse\fP	*/
+		\fBcdl_markEllipse\fP (cdl, x, y, xrad, yrad, angle, fill, color);
+		break;
+	    case 'l':				/* \fILine\fP		*/
+		printf ("Hit another key to set line endpoint...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		\fBcdl_markLine\fP (cdl, x, y, x2, y2, color);
+		break;
+	    case 't':				/* \fIText string\fP	*/
+		printf ("Text string: ");
+		gets (str);
+		\fBcdl_markText\fP (cdl, x, y, str, txsize, angle, color);
+		break;
+	    case 'C':				/* \fICircular annuli\fP*/
+		\fBcdl_markCircAnnuli\fP (cdl, x, y, radius, nannuli, sep, color);
+		break;
+	    case 'D':				/* \fIDelete all markers\fP*/
+		\fBcdl_clearOverlay\fP (cdl);
+		break;
+	    case 'E':				/* \fIElliptical annuli\fP*/
+		\fBcdl_markEllipAnnuli\fP (cdl, x, y, xrad, yrad, angle, nannuli, sep, color);
+		break;
+	    default:
+		break;
+	    }
+	}
+}
+\fR
+.fi
+.vs +2
+.ps +2
+.bp
+.NH 2
+Image Mosaic Example
+.LP
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+#include <stdio.h>
+#include <unistd.h>
+#\fBinclude "cdl.h"\fP
+
+/* \fIMOSAIC -- Example task to mosaic several images on a display. Demonstrates
+ * usage of low-level routines for complex display operations.\fP
+ */
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname = NULL, title[128];
+	int	i, j, k, status=0, label=0, frame=1, fb=FB_AUTO, zscale=1;
+	int	sample=1, pad=0, col=204, imx, imy, bitpix, nimages, nim;
+	int	ii, xinit, rowx, rowy, nnx, nny, fb_w, fb_h, nf, mx, my, nx, ny;
+	float 	z1, z2;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	  for (i=1; i < argc; i++) {
+            if (strncmp (argv[i], "-fbconfig",3) == 0) fb=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-frame",3) == 0) frame=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-color",3) == 0) col=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-label",4) == 0) label=1;
+	    else if (strncmp (argv[i],"-nozscale",4) == 0) zscale=0;
+	    else if (strncmp (argv[i],"-nx",3) == 0) nx=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-ny",3) == 0) ny=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-pad",4) == 0) pad=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-sample",4) == 0) sample=atoi(argv[++i]);
+	    else 
+	        break;
+	  }
+	}
+	nimages = argc - i;
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* \fIClear the frame to begin.\fP */
+	(void) \fBcdl_clearFrame\fP (cdl);
+
+	/* \fILoop over each of the images in the list.\fP */
+	nim = rowx = rowy = nnx = nny = 0;
+	for (k=0; k < ny && nim < nimages; k++) {
+	    rowy += nny + pad; 
+	    for (rowx = xinit, j=0; j < nx && nim < nimages; j++) {
+
+		/* \fIGet the image name for display.\fP */
+		fname = argv[i++];
+
+		/* \fIFigure out what kind of image it is and get the pixels.\fP */
+            	if (cdl_isIRAF (fname))
+		    status = \fBcdl_readIRAF\fP (fname, 1, &pix, &imx, &imy, &bitpix, title);
+            	else if (cdl_isFITS (fname))
+		    status = \fBcdl_readFITS\fP (fname, &pix, &imx, &imy, &bitpix, title);
+            	else {
+		    fprintf(stderr, "'%s': unknown or nonexistant image.\\n", fname);
+		    status = 1;
+            	}
+            	if (status)  goto err_; 
+
+		/* \fICompute subsampled image size.\fP */
+		if (sample > 1)
+		    nnx = imx / sample, nny = imy / sample;
+		else
+		    nnx = imx, nny = imy;
+
+		/* \fIUnless we asked for a specific FB size find one large enough
+		 * to handle the mosaic.  We don't check to be sure what's
+		 * returned is really large enough.\fP
+		 */
+		if (nim == 0 && fb == FB_AUTO)
+		    \fBcdl_selectFB\fP (cdl, nx*nnx+(pad*(nx-1)), ny*nny+(pad*(ny-1)), &fb, &fb_w, &fb_h, &nf, 1);
+		else {
+		    \fBcdl_setFBConfig\fP (cdl, fb);
+		    \fBcdl_lookupFBSize\fP (cdl, fb, &fb_w, &fb_h, &nf);
+		}
+
+		/* \fIDefine a WCS for the frame.\fP */
+		\fBcdl_setWCS\fP (cdl, "image mosaic", title, 1., 0., 0., -1., 0., (float) ny*imy+(pad*(ny+1)), 1., 255., 1);
+
+		/* \fIThe first time through figure out the placement so the
+	   	 * entire mosaic is centered in the frame.\fP
+		 */
+		if  (nim == 0) {
+		    mx = (nx * nnx) + pad * (nx-1);
+		    my = (ny * nny) + pad * (ny-1);
+		    rowy = (fb_h - my) / 2;
+		    xinit = rowx = (fb_w - mx) / 2;
+		}
+
+		/* \fICompute the zscaled imaged pixels.\fP */
+		if (zscale) {
+		    \fBcdl_computeZscale\fP (cdl, pix, imx ,imy, bitpix, &z1, &z2);
+		    \fBcdl_zscaleImage\fP (cdl, &pix, imx ,imy, bitpix, z1, z2);
+		}
+
+		/* \fISubsample the image if requested.\fP */
+		if (sample > 1) {
+		    int l, m, n=0; 
+		    for (l=0; l < imy; l+=sample)
+		        for (m=0; m < imx; m+=sample)
+		            pix[n++] = pix[(l*imx)+m];
+		}
+
+		/* \fIWrite the image to the frame buffer.\fP */
+            	if (\fBcdl_writeSubRaster\fP (cdl, rowx, rowy, nnx, nny, pix)) goto err_; 
+
+		/* \fIDraw the image name as a label.\fP */
+		if (label) \fBcdl_markText\fP (cdl, rowx+10, rowy+10, fname, 1., 0., col);
+
+		nim++; 	rowx += nnx + pad; 
+	    }
+	}
+	
+	/* \fIClose the package and clean up.\fP */
+err_:	\fBcdl_close\fP (cdl);			
+	exit (status);
+}
+.fi
+.vs +2
+.ps +2
+.in -0.5i
+
+.bp
+.NH
+Fortran  Interface Summary
+.LP
+.in 0.5i
+include  "\fBcdlftn.inc\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+\fBcfopen\fR	(imtdev, ier)
+\fBcfdisplayPix\fR	(pix, nx, ny, bitpix, frame, fbconfig, zscale, ier)
+\fBcfreadCursor\fR	(sample, x, y, key, ier)
+\fBcfsetCursor\fR	(x, y, wcs, ier)
+\fBcfsetWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcfgetWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcfsetFrame\fR	(frame)
+\fBcfclearFrame\fR	(ier)
+\fBcfclose\fR	()
+
+\fBcfsetMapping\fR	(region, sx,sy,snx,sny, dx,dy,dnx,dny, ref, ier)
+\fBcfgetMapping\fR	(region, sx,sy,snx,sny, dx,dy,dnx,dny, ref, ier)
+\fBcfqueryMap\fR	(wcs, region, sx,sy,snx,sny, dx,dy,dnx,dny, objref, ier)
+
+\fBcfdisplayIRAF\fR	(fname, band, frame, fbconfig, zscale, ier)
+\fBcfisIRAF\fR	(fname, isiraf)
+\fBcfreadIRAF\fR	(fname, band, pix, nx, ny, bitpix, title, ier)
+
+\fBcfdisplayFITS\fR	(fname, frame, fbconfig, zscale, ier)
+\fBcfisFITS\fR	(fname, isfits)
+\fBcfreadFITS\fR	(fname, pix, nx, ny, bitpix, title, ier)
+
+\fBcfcomputeZscale\fR	(pix, nx, ny, bitpix, z1, z2)
+\fBcfzscaleImage\fR	(pix, nx, ny, bitpix, z1, z2)
+
+\fBcfprintPix\fR	(cmd, pix, nx, ny, annotate, ier)
+\fBcfprintPixToFile\fR	(fname, pix, nx, ny, annotate, ier)
+
+\fBcfreadImage\fR	(pix, nx, ny, ier)
+\fBcfreadFrameBuffer\fR	(pix, nx, ny, ier)
+\fBcfreadSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+\fBcfwriteSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+
+\fBcfselectFB\fR	(nx, ny, fb, w, h, nf, reset)
+\fBcfsetFBConfig\fR	(configno)
+\fBcfgetFBConfig\fR	(configno, w, h, nf)
+\fBcflookupFBSize\fR	(configno, w, h, nf)
+
+\fBcfsetZTrans\fR	(ztrans)
+\fBcfsetZScale\fR	(z1, z2)
+\fBcfsetSample\fR	(nsample)
+\fBcfsetSampleLines\fR	(nlines)
+\fBcfsetContrast\fR	(contrast)
+\fBcfsetName\fR	(imname)
+\fBcfsetTitle\fR	(imtitle)
+
+\fBcfgetFrame\fR	(frame)
+\fBcfgetZTrans\fR	(ztrans)
+\fBcfgetZScale\fR	(z1, z2)
+\fBcfgetSample\fR	(nsample)
+\fBcfgetSampleLines\fR	(nlines)
+\fBcfgetContrast\fR	(contrast)
+\fBcfgetName\fR	(imname)
+\fBcfgetTitle\fR	(imtitle)
+
+\fBcfmapFrame\fR	(frame, ier)
+\fBcfmarkPoint\fR	(x, y, number, size, type, color, ier)
+\fBcfmarkcoordsfile\fR	(fname, type, size, color, label, ier)
+\fBcfmarkPointLabel\fR	(x, y, label, size, type, color, ier)
+\fBcfmarkLine\fR	(xs, ys, xe, ye, color, ier)
+\fBcfmarkBox\fR	(lx, ly, ux, uy, fill, color, ier)
+\fBcfmarkPolygon\fR	(xarray, yarray, npts, fill, color, ier)
+\fBcfmarkPolyline\fR	(xarray, yarray, npts, color, ier)
+\fBcfmarkCircle\fR	(x, y, radius, fill, color, ier)
+\fBcfmarkCircAnnuli\fR	(x, y, radius, nannuli, sep, color, ier)
+\fBcfmarkEllipse\fR	(x, y, xrad, yrad, rotang, fill, color, ier)
+\fBcfmarkEllipAnnuli\fR	(x, y, xrad, yrad, ang, nannuli, sep, color, ier)
+\fBcfmarkText\fR	(x, y, str, size, angle, color, ier)
+\fBcfsetfont\fR		(font)
+\fBcfsettextwidth\fR	(width)
+\fBcfsetlwidth\fR	(width)
+\fBcfsetlstyle\fR	(style)
+\fBcfdeleteMark\fR	(x, y, ier)
+\fBcfclearOverlay\fR	(ier)
+\fBcfredrawOverlay\fR	(ier)
+.TE
+.bp
+.NH
+Fortran Example Tasks
+.LP
+	The examples shown here are for demonstration purposes only.  They
+are based on working example tasks in the CDL source \fIexamples\fR
+subdirectory, see the programs there for the full program listing.
+
+.NH 2
+Display Example
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+\f(CW
+C ========================================================================
+C  FDISPLAY -- Example fortran program showing the use of the Client
+C  Display Library (CDL) Fortran interface for displaying images.
+C ========================================================================
+
+	PROGRAM FDISPLAY
+	character*64   imname
+
+C 	\fIInitialize the CDL package\fP
+	call \fBcfopen\fP (0, ier)
+	if (ier .gt. 0) then
+	    write (*,*) 'open: Error return from CDL'
+	    goto 999
+	endif
+
+	write (*, "('Image Name: ', $)")
+	read (5, *) imname
+	write (*, "('Frame Number: ', $)")
+	read (5, *) iframe
+	write (*, "('Frame buffer configuration number: ', $)")
+	read (5, *) ifb
+
+C	\fIIf we've got a FITS format image, go ahead and display it.\fP
+	call \fBcfisFITS\fP (imname, isfits)
+	if (isfits .gt. 0) then
+	    call \fBcfdisplayFITS\fP (imname, iframe, ifb, 1, ier)
+	else 
+C	    \fIWe've got an IRAF format image, go ahead and display it.\fP
+	    call \fBcfisIRAF\fP (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call \fBcfdisplayIRAF\fP (imname, 1, iframe, ifb, 1, ier)
+	    else 
+C	    	\fIUnrecognized image, punt and exit.\fP
+	        write (*,*) 'Unrecognized image format'
+	    endif
+	endif
+
+C 	\fIClean up and exit.\fP
+999	continue
+	call \fBcfclose\fP (ier)
+	end
+\fR
+.fi
+.ps +2
+.vs +2
+.in -0.5i
+.bp
+.NH 2
+Interactive Graphics Overlay Example
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+\f(CW
+C ==========================================================================
+C  FTVMARK --  Example fortran program showing the use of the Client
+C  Display Library (CDL) Fortran interface for doing graphics overlay. No
+C  checking of the error flag is done here for space considerations.
+C ==========================================================================
+
+	PROGRAM FTVMARK
+	include 	"\fBcdlftn.inc\fP"
+	character*64   	imname
+
+C 	\fIInitialize the CDL package\fP
+	call \fBcfopen\fP (0, ier)
+
+	write (*, "('Image Name: ', $)") 
+	read (5, *) imname
+	write (*, "('Frame Number: ', $)")
+	read (5, *) iframe
+	write (*, "('Frame buffer configuration number: ', $)")
+	read (5, *) ifb
+
+C	\fIIf we've got a FITS format image, go ahead and display it.\fP
+	call \fBcfisFITS\fP (imname, isfits)
+	if (isfits .gt. 0) then
+	    call \fBcfdisplayFITS\fP (imname, iframe, ifb, 1, ier)
+	else 
+C	    \fIWe've got an IRAF format image, go ahead and display it.\fP
+	    call \fBcfisIRAF\fP (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call \fBcfdisplayIRAF\fP (imname, 1, iframe, ifb, 1, ier)
+	    else 
+C	        \fINo valid image given, so map the current display for marking.\fP
+	        call \fBcfmapFrame\fP (iframe)
+	    endif
+	endif
+
+C 	\fINow that we've got an image displayed or mapped, enter a cursor loop to mark the image. \fP
+	call markInteractive ()
+
+C 	\fIClean up and exit\fP
+999	continue
+	call \fBcfclose\fP (ier)
+	end
+
+C   \fIMARKINTERACTIVE -- Subroutine for processing the cursor loop.\fP
+	subroutine markInteractive ()
+	include 	"\fBcdlftn.inc\fP"
+	real		angle, rx, ry, txsize
+	integer		nx, ny, x, y, x2, y2, fill, size, color
+	integer		number, radius, xrad, yrad, nannuli, sep
+	character	key
+	character*64	cmd, str
+
+C  	\fIAllocate a 1024x1024 array for pixels. \fP
+	character	pix(1048576)
+
+C	\fI....Initialize the local parameters to use\fP
+
+C	\fIRead a cursor keystroke telling us what to do.\fP
+10 	call \fBcfreadCursor\fP (0, rx, ry, key, ier)
+
+C	\fIRound the real cursor position to integer pixel positions.\fP
+	    x = nint (rx + 0.5)
+	    y = nint (ry + 0.5)
+
+C	\fICheck the keystroke and take the appropriate action.\fP
+C	    \fIColon Commands\fP
+	    if (key .eq. ':') then
+C		\fIRead a three character command and value field and process the colon command\fP
+		read (*,'(A3, i4)') cmd, ival
+		if (cmd(1:3) .eq. 'ang') then
+		    angle = real (ival)
+		else if (cmd(1:3) .eq. 'col') then
+		    color = ival
+		else if (cmd(1:3) .eq. 'fil') then
+		    fill = ival
+\fI 			:
+			....and so on to set local variables
+			:\fR
+		else if (cmd(1:3) .eq. 'pri') then
+C		    \fIPrint contents of the current frame buffer\fP
+		    call \fBcfreadFrameBuffer\fP (pix, nx, ny, ier)
+		    call \fBcfprintPix\fP ("lpr", pix, nx, ny, 1, ier)
+		else if (cmd(1:3) .eq. 'sta') then
+			\fI....print out the status (value) of variables\fP
+	 	endif
+
+C	    \fIPoint Markers\fP
+	    else if (key .eq. 'p') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_PLUS, color, ier)
+	    else if (key .eq. 'x') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_CROSS, color, ier)
+	    else if (key .eq. '_') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_HBLINE, color, ier)
+	    else if (key .eq. 'o') then
+C		\fIExample of a filled point marker \fP
+		call \fBcfmarkPoint\fP (x, y, 1, size, or(M_CIRCLE,fill), color, ier)
+\fI 			:
+			....and so on to set other types of point markers\fR
+
+C	    \fIOther Markers\fP
+	    else if (key .eq. 'b') then
+		print '("Hit another key to define the box ....")'
+ 		call \fBcfreadCursor\fP (0, rx, ry, key, ier)
+	    	x2 = nint (rx + 0.5)
+	    	y2 = nint (ry + 0.5)
+		call \fBcfmarkBox\fP (x, y, x2, y2, fill, color, ier)
+	    else if (key .eq. 'd') then
+		call \fBcfdeleteMark\fP (x, y, ier)
+	    else if (key .eq. 'e') then
+		call \fBcfmarkEllipse\fP (x, y, xrad, yrad, angle, fill, color, ier)
+            else if (key .eq. 't') then
+                print '("Text string:  ", $)'
+                read (*,'(A64)') str
+                call \fBcfmarkText\fP (x, y, str, txsize, angle, color, ier)
+\fI 			:
+			....and so on to set other types of markers\fR
+
+C	    \fIQuit\fP
+	    else if (key .eq. 'q') then
+		goto 998
+	    endif
+
+C	\fILoop back until we want to quit\fP
+	goto 10
+998	continue
+	end
+\fR
+.fi
+.ps +2
+.vs +2
+.in -0.5i
+.bp
+.NH
+SPP Interface Summary
+.LP
+.in 0.5i
+#include  "\fBcdlspp.h\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+\fBcdl_open\fR	(imtdev, ier)
+\fBcdl_displayPix\fR	(pix, nx, ny, bitpix, frame, fbconfig, zscale, ier)
+\fBcdl_readCursor\fR	(sample, x, y, wcs, key, ier)
+\fBcdl_setCursor\fR	(x, y, wcs, ier)
+\fBcdl_setWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcdl_getWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcdl_setFrame\fR	(frame)
+\fBcdl_clearFrame\fR	(ier)
+\fBcdl_close\fR	()
+
+\fBcdl_setMapping\fR	(region, sx,sy,snx,sny, dx,dy,dnx,dny, ref, ier)
+\fBcdl_getMapping\fR	(region, sx,sy,snx,sny, dx,dy,dnx,dny, ref, ier)
+\fBcdl_queryMap\fR	(wcs, region, sx,sy,snx,sny, dx,dy,dnx,dny, objref, ier)
+
+\fBcdl_displayIRAF\fR	(fname, band, frame, fbconfig, zscale, ier)
+\fBcdl_isIRAF\fR	(fname, isiraf)
+\fBcdl_readIRAF\fR	(fname, band, pix, nx, ny, bitpix, title, ier)
+
+\fBcdl_displayFITS\fR	(fname, frame, fbconfig, zscale, ier)
+\fBcdl_isFITS\fR	(fname, isfits)
+\fBcdl_readFITS\fR	(fname, pix, nx, ny, bitpix, title, ier)
+
+\fBcdl_computeZscale\fR	(pix, nx, ny, bitpix, z1, z2)
+\fBcdl_zscaleImage\fR	(pix, nx, ny, bitpix, z1, z2)
+
+\fBcdl_printPix\fR	(cmd, pix, nx, ny, annotate, ier)
+\fBcdl_printPixToFile\fR	(fname, pix, nx, ny, annotate, ier)
+
+\fBcdl_readImage\fR	(pix, nx, ny, ier)
+\fBcdl_readFrameBuffer\fR	(pix, nx, ny, ier)
+\fBcdl_readSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+\fBcdl_writeSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+
+\fBcdl_selectFB\fR	(nx, ny, fb, w, h, nf, reset)
+\fBcdl_setFBConfig\fR	(configno)
+\fBcdl_getFBConfig\fR	(configno, w, h, nf)
+\fBcdl_lookupFBSize\fR	(configno, w, h, nf)
+
+\fBcdl_setZTrans\fR	(ztrans)
+\fBcdl_setZScale\fR	(z1, z2)
+\fBcdl_setSample\fR	(nsample)
+\fBcdl_setSampleLines\fR	(nlines)
+\fBcdl_setContrast\fR	(contrast)
+\fBcdl_setName\fR	(imname)
+\fBcdl_setTitle\fR	(imtitle)
+
+\fBcdl_getFrame\fR	(frame)
+\fBcdl_getZTrans\fR	(ztrans)
+\fBcdl_getZScale\fR	(z1, z2)
+\fBcdl_getSample\fR	(nsample)
+\fBcdl_getSampleLines\fR	(nlines)
+\fBcdl_getContrast\fR	(contrast)
+\fBcdl_getName\fR	(imname)
+\fBcdl_getTitle\fR	(imtitle)
+
+\fBcdl_mapFrame\fR	(frame, ier)
+\fBcdl_markCoordsFile\fR	(fname, type, size, color, label, ier)
+\fBcdl_markPoint\fR	(x, y, number, size, type, color, ier)
+\fBcdl_markPointLabel\fR	(x, y, label, size, type, color, ier)
+\fBcdl_markLine\fR	(xs, ys, xe, ye, color, ier)
+\fBcdl_markBox\fR	(lx, ly, ux, uy, fill, color, ier)
+\fBcdl_markPolygon\fR	(xarray, yarray, npts, fill, color, ier)
+\fBcdl_markPolyline\fR	(xarray, yarray, npts, color, ier)
+\fBcdl_markCircle\fR	(x, y, radius, fill, color, ier)
+\fBcdl_markCircAnnuli\fR	(x, y, radius, nannuli, sep, color, ier)
+\fBcdl_markEllipse\fR	(x, y, xrad, yrad, rotang, fill, color, ier)
+\fBcdl_markEllipAnnuli\fR	(x, y, xrad, yrad, ang, nannuli, sep, color, ier)
+\fBcdl_markText\fR	(x, y, str, size, angle, color, ier)
+\fBcdl_setFont\fR	(font)
+\fBcdl_setTextWidth\fR	(width)
+\fBcdl_setLineWidth\fR	(width)
+\fBcdl_setLineStyle\fR	(style)
+\fBcdl_deleteMark\fR	(x, y, ier)
+\fBcdl_clearOverlay\fR	(ier)
+\fBcdl_redrawOverlay\fR	(ier)
+\fBcdl_setDebug\fR	(level)
+.TE
diff --git a/vendor/x11iraf/cdl/doc/cdlref.ms-V1.0 b/vendor/x11iraf/cdl/doc/cdlref.ms-V1.0
new file mode 100644
index 00000000..52f4fafa
--- /dev/null
+++ b/vendor/x11iraf/cdl/doc/cdlref.ms-V1.0
@@ -0,0 +1,2297 @@
+.RP
+.de us
+\\$1\l'|0\(ul'
+..
+.TL
+A Reference Guide for the IRAF Client Display Library (CDL)
+.AU
+Michael Fitzpatrick
+.AI
+NOAO/IRAF Group
+.sp 0.5
+February 1997
+.sp 0.5
+\fIRevised September 1997\fR
+
+.AB
+The Client Display Library (CDL) is a host interface for C or Fortran
+programs allowing them to display images or overlay graphics to display
+servers such as \fIXImtool\fR or \fISAOimage / SAOtng\fR.  High-level
+procedures allow IRAF or FITS images to be displayed simply, other
+routines permit access to all other server functions (e.g. cursor and image
+readback, frame selection, etc).  The library also features a number of
+functions for doing image overlay graphics; supported graphics primitives
+include numerous point shapes, lines, circles, ellipses, polygons, annular
+shapes, and text.
+.AE
+
+.pn 1
+.bp
+.ce
+.ps +3
+\fBContents\fR
+.ps -3
+.sp 2
+1.\h'|0.25i'\fBIntroduction\fP\l'|5.6i.'\0\01
+.sp 0.5
+2.\h'|0.25i'\fBGetting Started\fP\l'|5.6i.'\0\01
+.sp 0.5
+3.\h'|0.25i'\fBServer Connections\fP\l'|5.6i.'\0\02
+.br
+\h'|0.25i'3.1.\h'|0.75i'Domain Sockets\l'|5.6i.'\0\02
+.br
+\h'|0.25i'3.2.\h'|0.75i'Named FIFO Pipes\l'|5.6i.'\0\03
+.br
+\h'|0.25i'3.3.\h'|0.75i'Inet Sockets\l'|5.6i.'\0\03
+.br
+\h'|0.25i'3.4.\h'|0.75i'User-Defined Connections\l'|5.6i.'\0\03
+.sp 0.5
+4.\h'|0.25i'\fBImage Display\fP\l'|5.6i.'\0\03
+.br
+\h'|0.25i'4.1.\h'|0.75i'Overview of the Display Process\l'|5.6i.'\0\03
+.br
+\h'|0.25i'4.2.\h'|0.75i'Displaying IRAF Images\l'|5.6i.'\0\04
+.br
+\h'|0.25i'4.3.\h'|0.75i'Displaying FITS Images\l'|5.6i.'\0\04
+.br
+\h'|0.25i'4.4.\h'|0.75i'Displaying Raw Pixels\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.5.\h'|0.75i'Frame Selection\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.6.\h'|0.75i'Clearing the Display\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.7.\h'|0.75i'Frame Buffer Selection\l'|5.6i.'\0\05
+.br
+\h'|0.5i'4.7.1.\h'|0.9i'Automatic Selection\l'|5.6i.'\0\06
+.br
+\h'|0.5i'4.7.2.\h'|0.9i'The Frame Buffer Configuration File\l'|5.6i.'\0\06
+.br
+\h'|0.25i'4.8.\h'|0.75i'Image WCS Description\l'|5.6i.'\0\06
+.br
+\h'|0.25i'4.9.\h'|0.75i'Image Colormaps\l'|5.6i.'\0\07
+.br
+\h'|0.5i'5.2.1.\h'|0.9i'Imtool Color Model\l'|5.6i.'\0\07
+.br
+\h'|0.25i'4.10.\h'|0.75i'ZScale Intensity Mapping\l'|5.6i.'\0\08
+.br
+\h'|0.25i'4.11.\h'|0.75i'Image Hardcopy\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.12.\h'|0.75i'Image Cursor\l'|5.6i.'\0\09
+.br
+\h'|0.5i'4.13.1.\h'|0.9i'Cursor Sampling\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.14.\h'|0.75i'Image Readout\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.15.\h'|0.75i'Subraster I/O\l'|5.6i.'\0\09
+.sp 0.5
+5.\h'|0.25i'\fBGraphics Overlay\fP\l'|5.6i.'\010
+.br
+\h'|0.25i'5.1.\h'|0.75i'Marker Coordinates\l'|5.6i.'\010
+.br
+\h'|0.5i'5.1.1.\h'|0.9i'Mapping a Previously Displayed Image\l'|5.6i.'\010
+.br
+\h'|0.25i'5.2.\h'|0.75i'Marker Colors\l'|5.6i.'\010
+.br
+\h'|0.25i'5.3.\h'|0.75i'Marker Types\l'|5.6i.'\010
+.br
+\h'|0.5i'5.3.1.\h'|0.9i'Point\l'|5.6i.'\011
+.br
+\h'|0.5i'5.3.2.\h'|0.9i'Line\l'|5.6i.'\011
+.br
+\h'|0.5i'5.3.3.\h'|0.9i'Box\l'|5.6i.'\011
+.br
+\h'|0.5i'5.3.4.\h'|0.9i'Circle\l'|5.6i.'\011
+.br
+\h'|0.5i'5.3.5.\h'|0.9i'Polyline\l'|5.6i.'\012
+.br
+\h'|0.5i'5.3.6.\h'|0.9i'Polygon\l'|5.6i.'\012
+.br
+\h'|0.5i'5.3.7.\h'|0.9i'Ellipse\l'|5.6i.'\012
+.br
+\h'|0.5i'5.3.8.\h'|0.9i'Circular Annuli\l'|5.6i.'\012
+.br
+\h'|0.5i'5.3.9.\h'|0.9i'Elliptical Annuli\l'|5.6i.'\012
+.br
+\h'|0.5i'5.3.10.\h'|0.9i'Text\l'|5.6i.'\012
+.br
+\h'|0.5i'5.4.\h'|0.9i'Text Fonts\l'|5.6i.'\013
+.br
+\h'|0.5i'5.5.1.\h'|0.9i'In-line Font Changes\l'|5.6i.'\013
+.br
+\h'|0.25i'5.5.\h'|0.75i'Deleting Markers\l'|5.6i.'\013
+.br
+\h'|0.5i'5.5.1.\h'|0.9i'Individual Markers\l'|5.6i.'\013
+.br
+\h'|0.5i'5.5.2.\h'|0.9i'The Entire Overlay\l'|5.6i.'\014
+.br
+\h'|0.25i'5.6.\h'|0.75i'Redrawing the Overlay\l'|5.6i.'\014
+.sp 0.5
+6.\h'|0.25i'\fBFortran Language Binding Notes\fP\l'|5.6i.'\014
+.sp 0.5
+7.\h'|0.25i'\fBSPP Language Binding Notes\fP\l'|5.6i.'\014
+.sp 0.5
+8.\h'|0.25i'\fBIIS Protocol Description\fP\l'|5.6i.'\015
+.sp 0.5
+9.\h'|0.25i'\fBC Interface Summary\fP\l'|5.6i.'\017
+.sp 0.5
+10.\h'|0.25i'\fBC Example Tasks\fP\l'|5.6i.'\019
+.br
+\h'|0.25i'10.1.\h'|0.75i'Display Example\l'|5.6i.'\019
+.br
+\h'|0.25i'10.2.\h'|0.75i'Interactive Graphics Overlay Example\l'|5.6i.'\022
+.br
+\h'|0.25i'10.3.\h'|0.75i'Image Mosaic Example\l'|5.6i.'\026
+.sp 0.5
+11.\h'|0.25i'\fBFortran Interface Summary\fP\l'|5.6i.'\028
+.sp 0.5
+12.\h'|0.25i'\fBFortran Example Tasks\fP\l'|5.6i.'\030
+.br
+\h'|0.25i'12.1.\h'|0.75i'Display Example\l'|5.6i.'\030
+.br
+\h'|0.25i'12.2.\h'|0.75i'Interactive Graphics Overlay Example\l'|5.6i.'\031
+.sp 0.5
+13.\h'|0.25i'\fBSPP Interface Summary\fP\l'|5.6i.'\033
+.pn 1
+
+.NH
+Introduction
+.LP
+	For more than a decade IRAF has used a \fIdisplay server\fR as the
+primary means for image display.  IRAF client tasks connect to the server
+and send or read data using a modification of the IIS Model 70 protocol,
+originally through named fifo pipes but more recently using unix domain
+or inet sockets.  The advantage to this approach was that IRAF client tasks
+could make use of the image display functionality without duplicating
+the code needed for actually displaying the image.  The longtime disadvantage
+was that the IIS protocol used was arcane and undocumented and therefore 
+largely unavailable to applications outside of the IRAF project.  The
+Client Display Library (CDL) provides a public C and Fortran interface for
+displaying images and overlay graphics that is independent of the underlying
+protocol used.
+.LP
+	Unlike the interface used by IRAF applications, the CDL is meant to
+provide an easy-to-use, fully featured interface for applications  that can
+be easily evolved for future display servers, communications schemes, or
+display functionality.  Indeed, the CDL is independent of IRAF itself (as
+are the display servers) so display tasks can be written for any discipline
+or application.
+.LP
+	While this guide assumes programs are written in C, Fortran programmers
+should find the translation straightforward by referring to the Fortran
+interface summary.  The package source files include example tasks as does
+this guide; users with problems, questions, or bug reports are encouraged to
+contact \fIiraf@noao.edu\fR.  A small code sample demonstrating the problem
+would be very helpful in finding a solution to any reported problems.
+
+.NH 
+Getting Started
+.LP
+	All C programs must include the header file \fB"cdl.h"\fR in order
+to get package definitions for constants such as colors and structure
+definitions used.  The Fortran interface does not \fIrequire\fR anything
+similar, however for fortran compilers which support an \f(CWinclude\fR
+directive a \fBcdlftn.inc\fR file may be used to define symbolic constants
+passed to procedures, this file must be included by each procedure using the
+CDL.  Fortran programs not using this file must pass in the constants 
+explicitly, needed values are found throughout this manual.  C procedures
+which return an integer value will return a positive number to indicate an
+error has occured and print an error message, otherwise zero is returned.
+.LP
+	The \fBcdl_open()\fR procedure is used to establish a connection
+to the server and initialize the package, it returns a CDL structure pointer
+that is passed to other CDL procedures.  For C programs this means
+a separate pointer may be maintained for each server connection, the Fortran
+interface is limited to only one server connection per process since the
+pointer is maintained internally.  The connection is terminated using the
+\fBcdl_close()\fR procedure.  Between these two calls may be any combination
+of CDL procedure calls for doing image display or overlay graphics.
+.LP
+	For example, the simplest possible program for displaying an IRAF
+image would look something like:
+.sp 0.5
+.nf
+		\f(CW#include "cdl.h"
+
+		main (int argc, char *argv[])
+		{
+		    CDLPtr cdl = cdl_open ((char *)0);
+		    cdl_displayIRAF (cdl, argv[1], 1, 1, 1, 1);
+		    cdl_close (cdl);
+		}\fR
+.fi
+.sp 0.5
+.LP
+This program displays band one of an image named on the command line to the
+server in frame one using the default 512x512 frame buffer, zscaling the
+pixels to 8-bit values automatically. No error checking is performed to verify
+that a connection was established or that the argument is a valid IRAF image.
+Most programs will be more complex than this but it should be clear that
+image display from client applications is a now trivial operation.
+
+.us "Synopsis"
+.sp 0.5
+.nf
+	\f(CW#include "cdl.h"\fR
+
+	\f(CWCDLPtr cdl_open (char *imtdev)\fR
+	\f(CWvoid cdl_close (CDLPtr cdl)\fR
+.fi
+
+.NH
+Server Connections 
+.LP
+	The \fBcdl_open()\fR procedure takes a single argument specifying the 
+type of connection to make to the server, this routine also initializes
+the CDL package.  If this is a NULL pointer the CDL will attempt to first
+connect on a unix domain socket, if that fails the standard IRAF /dev/imt1*
+fifo pipes are tried.  The syntax for the \fIimtdev\fR argument is as follows:
+.sp 0.5
+				\f(CW<domain> : <address>\fR
+.sp 0.5
+.LP
+where <domain> is one of "\fBinet\fR" (internet tcp/ip socket), "\fBunix\fR"
+(unix domain socket) or "\fBfifo\fR" (named pipe).  The form of the address
+depends upon the domain, as illustrated in the examples below.  The address
+field may contain up to two "%d" fields.  If present, the user's UID will be
+substituted (e.g. "unix:/tmp/.IMT%d"). The default connection if no imtdev
+is specified is "unix:/tmp/.IMT%d", failing that a connection is attempted
+on the /dev/imt1[io] named fifo pipes.   
+.NH 2
+Domain Sockets
+.LP
+	Domain sockets are sockets created on the local host.  The connection
+is usually faster than an inet socket and comparable to a fifo.  If the
+socket name is specified with a '%d' field the client can be assured of a 
+unique socket name for each user allowing multiple clients to be run on the
+same host by different users.
+.LP
+.us "Example"
+.sp 0.5
+.nf
+\f(CW
+	/* Connection to a local host using socket domain socket. */
+	if ((cdl = cdl_open ("unix:/tmp/.IMT%d")) == NULL) {
+	     fprintf (stderr, "cannot open domain socket connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+Named FIFO Pipes
+.LP
+	This is the traditional approach, and the only one supported by
+SAOimage (although recent versions contain support for sockets). Any named
+fifo pipe may be used, the syntax for the \fIimtdev\fR string in this case is
+.sp 0.5
+		\fBfifo:\f(CW<input_fifo>\fB:\f(CW<output_fifo>\fR
+.sp 0.5
+.LP
+.us "Example"
+.sp 0.5
+.nf
+	\f(CW/* Connection to a local host using named fifo pipes. */
+	if ((cdl = cdl_open ("fifo:/dev/imt1i:/dev/imt1o")) == NULL) {
+	     fprintf (stderr, "cannot open fifo pipe connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+Inet Sockets
+.LP
+	Inet sockets are connections between hosts via a tcp/ip socket.
+This permits connecting to the server over a remote network connection
+anywhere on the Internet.    
+.LP
+.us "Example"
+.sp 0.5
+.nf
+	\f(CW/* Connection to a local host using socket 5137. */
+	if ((cdl = cdl_open ("inet:5137")) == NULL) {
+	     fprintf (stderr, "cannot open inet socket connection\\n");
+	     exit (1);
+	}
+
+	/* Connection to a remote internet host using socket 5137. */
+	if ((cdl = cdl_open ("inet:5137:foo.bar.edu")) == NULL) {
+	     fprintf (stderr, "cannot open inet socket connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+User-Defined Connections
+.LP
+	Since IRAF V2.10.3 client tasks have been able to use an \fBIMTDEV\fR
+unix environment variable to set the connection type, the syntax of this 
+variable is the same as described above.  If the \fIcdl_open()\fR procedure
+is called with a NULL pointer the IMTDEV environment variable will
+automatically be checked.  To explicitly use this variable in the client
+task the \fIcdl_open()\fR procedure may be called as
+e.g.
+.sp 0.5
+.nf
+	\f(CWif ((cdl = cdl_open (getenv("IMTDEV"))) == NULL) {
+	     fprintf (stderr, "cannot open server connection\\n");
+	     exit (1);
+	}\fR
+.fi
+.NH
+Image Display
+.NH 2
+Overview of the Display Process
+.LP
+	Basic image display is done most easily using the high-level
+\fBcdl_displayIRAF()\fR, \fBcdl_displayFITS()\fR and \fBcdl_displayPix()\fR
+procedures.  These routines automaticaly define an image WCS, clear the
+frame, set the frame buffer and center the image in the display.  For most
+applications these are all that will be needed, but the
+\fBcdl_writeSubRaster()\fR procedure can also be used to display an image.
+For example, to display one image in a mosaic or other cases where
+the task needs low-level access to position the image or write raw pixel
+values.
+.LP
+	In these cases it is the responsibility of the client program to
+prepare the server for display.  The basic steps involed in displaying an
+image include
+.sp 0.5
+.TS
+center;
+lB lB
+- -
+l lI.
+Operation	CDL Procedure
+Selecting the frame	cdl_setFrame()
+Clear the frame	cdl_clearFrame()
+Select the frame buffer configuration	cdl_selectFB()
+Set the frame buffer configuration	cdl_setFBConfig()
+Scale the image pixels to 201 display values	cdl_zscaleImage()
+Define the image WCS	 
+Set the image WCS	cdl_setWCS()
+Compute the raster placement in the frame buffer	 
+Write the pixels to the display	cdl_writeSubRaster()
+.TE
+.sp 0.5
+In cases like a mosaic display obviously clearing the frame will only need
+to be done once and a single WCS for the mosaic should be defined.  For 
+simple display the high-level routines handle all of these steps for you, they
+are included here as checklist of what must be considered when using the CDL
+for low-level display.
+.NH 2
+Displaying IRAF Images
+.LP
+	The \fBcdl_displayIRAF()\fR procedure can be used to display an IRAF
+OIF format image (i.e. images with a \fI.imh\fR extension) by simply
+passing in the image name.  Pixel files for the
+image must be accessible from the local machine but can be in any directory,
+the HDR$ syntax for the imdir is also recognized.  Images may be three
+dimensional, the
+\fIband\fR argument is used to select the image band to be displayed. 
+The \fIframe\fR and \fIfbconfig\fR arguments select the frame and frame buffer
+size respectively, if the \fIzscale\fR flag is greater than zero the image
+will automatically be converted to 8-bit values using the zscale mapping
+algorithm.  The function returns a positive value if the image cannot
+be accessed or displayed for any reason, an error message will be printed.
+.LP
+	The \fIcdl_isIRAF()\fR procedure returns a positive value if the
+filename argument is recognized as an IRAF image, it does not check whether
+the pixel file can be successfully accessed.  For simply reading the pixels
+from an IRAF image the \fBcdl_readIRAF()\fR procedure may be used.  The
+function returns a zero value and sets the output pixel array, image
+dimensions and pixel size if successful, otherwise the function returns a
+positive value.  Note that
+the output pixel values may need to be scaled before they can be displayed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayIRAF (CDLPtr cdl, char *fname, int band,
+	    int frame, int fbconfig, int zscale)\fR
+	\f(CWint cdl_isIRAF (char *fname)\fR
+	\f(CWint cdl_readIRAF (char *fname, int band, uchar **pix,
+	    int *nx, int *ny, int *bitpix)\fR
+.fi
+.NH 2
+Displaying FITS Images
+.LP
+	The \fBcdl_displayFITS()\fR procedure can be used to display a
+\fIsimple\fR FITS image by name.  A "simple" FITS file is assumed to be
+one containing a single image and having no extensions.  Other types of
+FITS files may of course be displayed but the client will have to use other
+means to import the pixels.  FITS image extensions may be supported in a future
+release of the CDL.  The \fIframe\fR and \fIfbconfig\fR
+arguments select the frame and frame buffer size respectively, if the
+\fIzscale\fR flag is greater than zero the image will automatically be
+converted to 8-bit values using the zscale mapping algorithm.  The function
+returns a positive value if the image cannot be accessed or displayed for
+any reason, an error message will be printed.
+.LP
+	The \fIcdl_isFITS()\fR procedure returns a positive value if the
+filename argument is recognized as a simple FITS image.  For simply reading
+the image pixels the \fBcdl_readFITS()\fR procedure may be used.  The
+output pixel array, image dimensions and pixel size are returned if
+successful otherwise the function returns a positive value.  Note that
+the returned pixel values may need to be scaled before they can be displayed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayFITS (CDLPtr cdl, char *fname, int frame,
+	    int fbconfig, int zscale)\fR
+	\f(CWint cdl_isFITS (char *fname)\fR
+	\f(CWint cdl_readFITS (char *fname, uchar **pix, int *nx, int *ny,
+	    int *bitpix)\fR
+.fi
+.NH 2
+Displaying Raw Pixels
+.LP
+	The \fBcdl_displayPix()\fR procedure can be used to display an
+arbitrary array of pixels of any size.  The \fInx\fR and \fIny\fR arguments
+are the raster dimensions, and \fIbitpix\fR is the pixel size and has the
+same meaning as the FITS BITPIX keyword.  The \fIframe\fR and \fIfbconfig\fR
+arguments select the frame and frame buffer size respectively, if the
+\fIzscale\fR flag is greater than zero the image will automatically be
+converted to 8-bit values using the zscale mapping algorithm.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayPix (CDLPtr cdl, uchar *pix, int nx, int ny,
+	    int bitpix, int frame, int fbconfig, int zscale)\fR
+.fi
+.NH 2
+Frame Selection
+.LP
+	Frame selection is normally done as an argument to one of the display
+procedures, however frames may be explicitly selected using the
+\fBcdl_setFrame()\fR procedure.  This allows client programs to essentially
+"blink" frames independently, as long as the server supports multiple frames.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_getFrame (CDLPtr cdl, int frame)\fR
+.fi
+.NH 2
+Clearing the Display
+.LP
+	The current display frame may be explicitly cleared using the
+\fBcdl_clearFrame()\fR procedure.  The frame is also cleared prior to 
+displaying new images by the procedures \fBcdl_displayPix()\fR,
+\fBcdl_displayFITS()\fR, and \fBcdl_displayIRAF()\fR.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_clearFrame (CDLPtr cdl)\fR
+.fi
+.NH 2
+Frame Buffer Selection
+.LP
+	The default frame buffer used is 512x512, other sizes may be 
+selected using the \fBcdl_setFBConfig()\fR procedure.  To set the frame
+buffer size the client passes the frame buffer number as defined in 
+the frame buffer configuration file (see below) while setting the image
+WCS.  It is important to note that the frame buffer isn't actually changed
+in the server
+until a subsequent \fBcdl_setWCS()\fR call, either directly or through
+some other procedure which sets the WCS (e.g. one of the display procedures).
+.LP
+	To get the size of the currently defined frame buffer the user
+may call the \fBcdl_getFBConfig()\fR procedure.  This returns not only
+the current configuration number, but the size as well.  To get the size
+and any arbitrary configuration without actually setting it, the
+\fBcdl_lookupFBSize()\fR procedure may be used.  Any configuration not actually
+defined in the frame buffer configuration file is returned as the default
+512x512 size.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFBConfig (CDLPtr cdl, int configno)\fR
+	\f(CWvoid cdl_getFBConfig (CDLPtr cdl, int *configno, int *width,
+	    int *height, int *nframes)\fR
+	\f(CWvoid cdl_lookupFBSize (CDLPtr cdl, int configno, int *width,
+	    int *height, int *nframes)\fR
+.fi
+.NH 3
+Automatic Selection
+.LP
+	The \fBcdl_selectFB()\fR procedure may be used to select the most
+appropriate frame buffer to use for a given image size.  If possible a frame
+buffer the same size as the image will be used, otherwise one that is
+larger will be chosen.  Rather than simply selecting the first configuration 
+larger than the image, the procedure searches the entire configuration file
+selecting the one with the least empty space in both dimensions.  If the 
+\fIreset\fR flag is non-zero this frame is set automatically by the 
+procedure, otherwise the selected dimension is simply returned to the 
+calling program.  In either case the new frame buffer will not take effect
+until a new WCS is defined for the frame.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_selectFB (CDLPtr cdl, int nx, int ny, int *fb,
+		int *w, int *h, int *nf, int reset)
+.
+.NH 3
+The Frame Buffer Configuration File
+.LP
+	The size of the frame buffer is not passed directly to the server
+since this is not part of the communications protocol used.  Instead, the
+frame buffer number is sent as part of the WCS header packet.  So that 
+both the server and client can know that a particular frame buffer number
+corresponds to a specific size, a \fIframe buffer configuration file\fR 
+is used which both the client and server read.
+.LP
+	The default configuration file is /usr/local/lib/imtoolrc, this can
+be overridden by defining an \fBIMTOOLRC\fR environment variable naming
+the file to be used, or by creating a .imtoolrc file in your home directory.
+Since the server must also read the same file, this must be done before
+starting both the client and server applications.
+.LP
+The format of the frame buffer configuration file is
+.sp 0.5
+	\fIconfigno nframes width height [extra fields]\fP
+.sp 0.5
+e.g.
+.sp 0.5
+          1  2  512  512
+          2  2  800  800
+          3  1 1024 1024          # comment
+          :  :   :    :
+
+At most 128 frame buffer sizes may be defined, each configuration may define
+up to 4 frames, configuration numbers need not be sequential but should be 
+in ascending order.
+.NH 2
+Image WCS Description
+.LP
+	The image WCS is defined using the \fBcdl_setWCS()\fR procedure.  The
+WCS defines a mapping between any linear coordinate system and the image
+pixels, for our purposes we will discuss how the WCS is used to map the frame
+buffer pixels to image coordinates.  It is passed to the server in a string
+of the form:
+.sp 0.5
+              Image_Name_String\\n a b c d tx ty z1 z2 zt
+.sp 0.2
+where:
+.sp 0.2
+              X' = a*X + c*Y + tx
+              Y' = b*X + d*Y + ty
+
+The terms \fIa, b, c\fR, and \fId\fR define a rotation of the WCS wrt the pixel
+coordinates, the \fItx\fR and \fIty\fR values are translation terms.  The
+remaining three values define the intensity mapping of the display pixels;
+\fIz1\fR is the minimum pixel value used in the transformation, \fIz2\fR is
+the maximum value, and \fIzt\fR defines the type of transformation used (0 for
+none, 1 for linear, 2 for log10).  
+.LP
+	The WCS may be set explicitly by the calling program or a default
+appropriate for the image will be set automatically by the high-level
+display procedures, otherwise a WCS for the
+frame buffer is defined (i.e. returned coordinates are frame buffer coords).
+As an example of how the WCS is defined, the default WCS for an image
+IMX x IMY pixels in a frame buffer FBX x FBY pixels is defined as
+.sp 0.5
+.nf
+\f(CW        a  =  1.0;                         /* no rotation */
+        b  =  0.0;
+        c  =  0.0;
+        d  = -1.0;
+        tx = (IMX / 2) - (FBX / 2) + 1;    /* center in FB */
+        ty = (FBY / 2) + (IMY / 2);
+        z1 = z1;                           /* zscale values */
+        z2 = z2;
+        zt = 1;\fR
+.fi
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_setWCS (CDLPtr cdl, char *name, char *title,
+	    float a, float b, float c, float d, float tx, float ty,
+	    float z1, float z2, int zt)\fR
+	\f(CWint cdl_getWCS (CDLPtr cdl, char *name, char *title,
+	    float *a, float *b, float *c, float *d, float *tx, float *ty,
+	    float *z1, float *z2, int *zt)\fR
+.fi
+.NH 2
+Image Colormaps
+.LP
+	The IIS protocol used does not permit the downloading of user-defined
+colormaps, all images are loaded as raw grayscale values according to the
+XImtool colormap model used by currently supported servers.  All images
+containing private colormaps or more than the 201 grayscale values defined
+by the Imtool colormap model must either convert the image to 8-bit
+grayscale values by calling the CDL zscale procedures (\fBcdl_computeZscale()\fR
+and \fBcdl_zscaleImage()\fR) or scale the images in client code with 
+user LUTs.  The CDL zscale procedures scale image to 201 grayscale values
+so that they are displayed to the full 8-bit range, user LUT
+transformations or user code for converting to grayscale from a private
+colormap procedures should do the same.
+.NH 3
+Imtool Color Model
+.LP
+	The IMTOOL color model defines at most 201 grayscale values for use in 
+displaying the image, a set of 16 static colors are also defined for overlay
+graphics.  Pixel values sent to the server should be already scaled to this 
+model, i.e. the image pixels should be scaled to the range 1-200, values 
+above this will either represent the overlay colors or will wrap around to
+8-bit values.  The CDL zscale procedures will automatically scale
+arbitrary pixel values to use this color model, the overlay procedures
+assume color values are defined for the static color range 201-217 but any
+8-bit value may be used.
+.LP
+	A summary of the color model values is included below:
+.TS
+center;
+lB lB cB cB lB lB
+l l c c l l.
+Color	Description		Color	Description
+0	Background		208	Cyan
+1 - 200	Image data		209	Magenta
+201	Cursor (white)		210	Coral
+202	Background (black)		211	Maroon
+203	White		212	Orange
+204	Red		213	Khaki
+205	Green		214	Orchid
+206	Blue		215	Turquoise
+207	Yellow		216	Violet
+217	Wheat		218-255	undefined
+.TE
+.NH 2
+ZScale Intensity Mapping
+.LP
+	Since most display servers are only capable of displaying 8-bit pixel
+values,  images with more than 8-bits per pixel must be scaled prior to
+display.  For linear transformations this is typically done using a simple
+conversion of the image min/max values to the 256 grayscale values, however
+this doesn't produce very good results when most pixel values are near one
+of the extremes (usually the image min for astronomical images).  To solve
+this IRAF uses a \fIzscale\fR mapping algorithm where a sampling grid is used
+to approximate the image min/max values rather than computing it directly,
+a line is then fit to these sample pixels to determine the optimal
+transformation to the display values.  This is not only more efficient but
+maps the most common pixel values to the display range producing a better image.
+.LP
+	The CDL has several routines for doing the same transformation: the
+\fIcdl_computeZscale()\fR procedure is used to compute the optimal \fIz1\fR
+and \fIz2\fR
+values (the min/max used for the zscale transform) for an image of any pixel
+size.  The \fIbitpix\fR argument is the number of bits-per-pixel for the input
+array and has the same meaning as for the FITS \fIBITPIX\fR keyword. To then
+transform the image using these values (or user-defined values) the
+\fIcdl_zscaleImage()\fR procedure is used.  The input pixels are modified by
+this procedure but the array is not reallocated to the smaller size needed by
+an 8-bit array.  The \fBcdl_setSample()\fR and \fBcdl_setSampleLines()\fR
+procedures can be used to change the sampling grid and number of sample
+points (the default is 600 points on 5 lines).  The \fBcdl_setContrast()\fR
+procedure can be used to change the default contrast adjustment to the slope
+used in the transformation (the default is 0.25).  If a value of zero is
+given then the minimum and maximum of the intensity sample is used as the
+z1/z2 value.
+.LP
+	Each of the CDL display procedures has a \fIzscale\fR flag to
+automatically scale the pixels prior to display.  Applications wishing to 
+set their own z1/z2 values will need to call the zscale procedures and
+disable this flag.  By default cdl_zscaleImage() will use a linear transform,
+the \fBcdl_setZTrans()\fR procedure may be used to change this.  Acceptable
+values are \fBCDL_UNITARY\fR (zero) for a unitary transform, \fBCDL_LINEAR\fR
+(one) for a linear transform, or \fBCDL_LOG\fR (two) for a log10 transform.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_computeZscale (CDLPtr cdl, uchar *pix, int nx,
+	    int ny, int bitpix, float *z1, float *z2)\fR
+	\f(CWvoid cdl_zscaleImage (CDLPtr cdl, uchar **pix, int nx,
+	    int ny, int bitpix, float z1, float z2)\fR
+
+	\f(CWvoid cdl_setZTrans (CDLPtr cdl, int ztrans)\fR
+	\f(CWvoid cdl_getZTrans (CDLPtr cdl, int *ztrans)\fR
+	\f(CWvoid cdl_setZScale (CDLPtr cdl, float z1, float z2)\fR
+	\f(CWvoid cdl_getZScale (CDLPtr cdl, float *z1, float *z2)\fR
+
+	\f(CWvoid cdl_setSample (CDLPtr cdl, int nsample)\fR
+	\f(CWvoid cdl_setSampleLines (CDLPtr cdl, int nlines)\fR
+	\f(CWvoid cdl_setContrast (CDLPtr cdl, float contrast)\fR
+	\f(CWvoid cdl_getSample (CDLPtr cdl, int *nsample)\fR
+	\f(CWvoid cdl_getSampleLines (CDLPtr cdl, int *nlines)\fR
+	\f(CWvoid cdl_getContrast (CDLPtr cdl, float *contrast)\fR
+
+.fi
+.NH 2
+Image Hardcopy 
+.LP
+	While most servers include some hardcopy capability of their own the 
+CDL provides two procedures for creating hardcopy images from the client
+(e.g. for a batch processing application).  The client will typically read
+back the entire image, frame buffer, of just a subraster and pass those
+pixels to the print procedure.  Images will be written as Pseudocolor
+Postscript (to preserve the overlay marker colors) and may be disposed to
+a file using the \fBcdl_printPixToFile()\fR procedure or to any command string
+accepting input from \fIstdin\fR (typically just an 'lpr' command) by using
+the \fBcdl_printPix()\fR procedure.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_printPix (CDLPtr cdl, char *cmd, uchar *pix, int nx,
+	    int ny, int annotate)\fR
+	\f(CWint cdl_printPixToFile (CDLPtr cdl, char *fname, uchar *pix,
+	    int nx, int ny, int annotate)\fR
+.fi
+.NH 2
+Image Cursor
+.LP
+	The image cursor is read using the \fBcdl_readCursor()\fR procedure.
+The returned value is the cursor \fI(x,y)\fR position as floating point value
+in terms of the currently define image WCS.  Note that this position must
+be converted to integer if it is to be used in one of the marker procedures.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_readCursor (CDLPtr cdl, int sample, float *x,
+	    float *y, char *key)\fR
+.fi
+.NH 3
+Cursor Sampling
+.LP
+	If the cdl_readCursor() \fIsample\fR flag is non-zero the \fIlogical
+image cursor\fR position is returned immediately, otherwise the display server
+will wait for a keystroke before returning the cursor position.  The logical
+image cursor is the last value set by a \fIcdl_setCursor()\fR call or the last
+value returned by a \fIbcdl_readCursor()\fR call.  When sampling the cursor 
+position the keystroke value is undefined.
+.NH 2
+Image Readout
+.LP
+	The CDL maintains an internal knowledge of where an image has been
+positioned if it was displayed using one of the \fIcdl_display*\fR procedures.
+The \fBcdl_readImage()\fR procedure may be used to read back the entire image
+pixels from the server ignoring the region of the frame buffer outside of
+the image, the \fBcdl_readFrameBuffer()\fR procedure will read back the 
+contents of the entire frame buffer.  The dimensions of the array are returned
+in the \fInx\fR and \fIny\fR arguments.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_readImage (CDLPtr cdl, uchar **pix, int *nx,
+	    int *ny)\R
+	\f(CWint cdl_readFrameBuffer (CDLPtr cdl, uchar **pix,
+	    int *nx, int *ny)\R
+.fi
+.NH 2
+Subraster I/O
+.LP
+	The \fBcdl_writeSubRaster()\fR procedure is used to write an arbitrary
+raster to any location in the display.  Similarly the
+\fBcdl_readSubRaster()\fR procedure is used to read back an arbitrary raster.
+When an image has previously been displayed the subraster position is given
+in image coordinates (e.g. when writing a subregion of edited pixels),
+otherwise the position is in frame buffer coordinates (e.g. to display
+multiple images per frame you should use the cdl_writeSubRaster() call).
+See the section on \fIMarker Coordinates\fR for further explanation of the
+coordinate systems used.  
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_writeSubRaster (CDLPtr cdl, int lx, int ly, int nx,
+	    int ny, uchar *pix)\fR
+	\f(CWint cdl_readSubRaster (CDLPtr cdl, int lx, int ly, int nx,
+	    int ny, uchar **pix)\fR
+.fi
+.NH
+Graphics Overlay
+.NH 2
+Marker Coordinates
+.LP
+	All marker positions are assumed to be image pixel coordinates, 
+although there is no requirement that the position be on the image itself.
+When an image WCS is defined (using the CDL display procedures or explicitly)
+the origin of the coordinates used shifts from the frame buffer lower-left
+to the lower-left of the image as displayed in the frame.   Negative
+positions are allowed and will either refer to empty pixels if the frame
+buffer is larger than the image, or pixels outside the frame buffer
+boundaries.  Raster I/O requests will be clipped to the frame buffer
+endpoints, a request completely outside the frame buffer is an error.
+.NH 3
+Mapping a Previously Displayed Image
+.LP
+	Ideally any application wishing to draw markers on an image will have
+also displayed that image, however the \fBcdl_mapFrame()\fR procedure may
+be used to map the requested frame for marker overlay.  It does this by
+reading the WCS defined for that frame and assumes an image has been
+displayed and centered in the frame buffer, then resets the internal CDL
+image position.  If no image has been displayed the frame buffer is mapped
+directly.  This can be used for example to map an empty frame for displaying
+just the markers without an image, or for mapping another frame's WCS for
+use on the current display.  The frame is not changed by the procedure call
+however the current WCS \fIis\fR changed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_mapFrame (CDLPtr cdl, int frame)\fR
+.fi
+.NH 2
+Marker Colors
+.LP
+	Markers may be drawn using any 8-bit value, in order to use the 
+static overlay colors the color must be in the range 201-217 (see above for
+notes on the XImtool color model).  The "\fIcdl.h\fR" include file
+for C programs, or the "\fIcdlftn.inc\fR" include for fortran programs,
+defines the following symbolic constants for each of the static overlay colors:
+.sp 0.5
+.TS
+center;
+lB l c c lB l.
+C_BLACK	202			C_CORAL	210
+C_WHITE	203			C_MAROON	211
+C_RED	204			C_ORANGE	212
+C_GREEN	205			C_KHAKI	213
+C_BLUE	206			C_ORCHID	214
+C_YELLOW	207			C_TURQUOISE	215
+C_CYAN	208			C_VIOLET	216
+C_MAGENTA	209			C_WHEAT	217
+.TE
+.NH 2
+Marker Types
+.LP
+	Currently supported marker types include: \fI
+.TS
+center;
+l l l l l.
+Point	Line	Box	Polyline	Polygon
+Circle	Circular Annuli	Ellipse	Elliptical Annuli	Text		
+.TE
+.LP
+	\fRThe "\fIcdl.h\fR" include file for C programs, or the
+"\fIcdlftn.inc\fR" include for fortran programs, defines the following
+symbolic constants for each of the defined \fIPoint\fR marker types:
+.TS
+center;
+lB r c c lB r.
+M_FILL	1			M_CIRCLE	64
+M_POINT	2			M_STAR	128
+M_BOX	4			M_HLINE	256
+M_PLUS	8			M_VLINE	512
+M_CROSS	16			M_HBLINE	1024
+M_DIAMOND	32			M_VBLINE	2048
+.TE
+.LP
+	Point markers are drawn using the \fBcdl_markPoint()\fR procedure,
+point types may be logically \fIOR\fR'd to create composite markers, closed
+shapes such as a circles, diamonds, or squares may be \fIOR\fR'd with the
+M_FILL flag to flood-fill the point with the current overlay color.
+.NH 3
+Point
+.LP
+	The \fBcdl_markPoint()\fR procedure is used to mark a specific point
+on the image using one of the marker types listed above.  The marker is 
+centered at the coordinates specified by the \fIx\fR and \fIy\fR arguments,
+\fItype\fR is an integer flag indicating what kind of marker to draw and 
+may be a composite type by logically ORing two or more marker types.
+\fISize\fR is the width and height of the marker measured in pixel unxits, 
+and \fIcolor\fR is the color used to draw the marker.  If the \fInumber\fR
+argument is greater than zero that number will be drawn next to the point
+as a label, 
+creating text labels for point markers can bedone using the
+\fIcdl_markPointLabel\fR procedure.
+.LP
+	Most marker names are fairly obvious but several are worth special
+mention:  The M_DIAMOND, M_CIRCLE and M_BOX marker types may be logically
+\fIOR\fRed with the M_FILL flag to produce a filled marker type.  Unless
+\fIOR\fRd with the M_POINT flag all point markers will leave the center
+pixel unchanged.  The M_HLINE and M_VLINE markers are most useful in
+astronomical applications to mark an individual star, they are horizontal
+and vertical lines respectively with a gap in the middle third of the marker
+(the M_HBLINE and M_VBLINE are identical but with a width of 3 pixels).
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPoint (CDLPtr cdl, int x, int y, int number,
+	    int size, int type, int color)\fR
+	\f(CWint cdl_markPoint (CDLPtr cdl, int x, int y, char *label
+	    int size, int type, int color)\fR
+.fi
+.NH 3
+Line
+.LP
+	The \fBcdl_markLine()\fR procedure is used to draw a line of the
+specified color between points (\fIxs,ys\fR) and (\fIxe,ye\fR).
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markLine (CDLPtr cdl, int xs, int ys, int xe, int ye,
+	    int color)\fR
+.fi
+.NH 3
+Box
+.LP
+	The \fBcdl_markBox()\fR procedure is used to draw a box of the
+specified color with endpoints specified by (\fIlx,ly\fR) and (\fIux,uy\fR).
+If the \fIfill\fR flag is set the box will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markBox (CDLPtr cdl, int lx, int ly, int ux, int uy,
+	    int fill, int color)\fR
+.fi
+.NH 3
+Circle
+.LP
+	The \fBcdl_markCircle()\fR procedure is used to draw a circle of the
+specified color with a center at (\fIx,y\fR) and radius \fIradius\fR.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCircle (CDLPtr cdl, int x, int y, int radius,
+	    int fill, int color)\fR
+.fi
+.NH 3
+Polyline
+.LP
+	The \fBcdl_markPolyline()\fR procedure is used to draw a line
+connecting the \fInpts\fR points specified by the \fIxpts\fR and
+\fIypts\fR array in the desired \fIcolor\fR.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPolyline (CDLPtr cdl, int *xpts, int *ypts,
+	    int npts, int color)\fR
+.fi
+.NH 3
+Polygon
+.LP
+	The \fBcdl_markPolygon()\fR procedure is used to draw a closed
+polygon consisting of \fInpts\fR vertices specified by the \fIxpts\fR and
+\fIypts\fR array in the desired \fIcolor\fR.  The last point in the array
+will automatically be connected to the first point by the procedure.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPolygon (CDLPtr cdl, int *xpts, int *ypts,
+	    int npts, int fill, int color)\fR
+.fi
+.NH 3
+Ellipse
+.LP
+	The \fBcdl_markEllipse()\fR procedure is used to draw an ellipse of the
+specified color with a center at (\fIx,y\fR) and semimajor-axis \fIxrad\fR
+and semiminor-axis \fIyrad\fR pixels long.  A rotation angle for the ellipse
+may be specified by passing a non-zero \fIangle\fR argument, the angle is
+measured in degrees from the positive x-axis.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markEllipse (CDLPtr cdl, int x, int y, int xrad,
+	    int yrad, float ang, int fill, int color)\fR
+.fi
+.NH 3
+Circular Annuli
+.LP
+	The \fBcdl_markCircAnnuli()\fR procedure is used to draw
+\fInannuli\fR circles separated by \fIsep\fR pixels each.  The circle is
+centered at (\fIx,y\fR) with an initial radius of \fIradius\fR pixels.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCircAnnuli (CDLPtr cdl, int x, int y, int radius,
+	    int nannuli, int sep, int color)\fR
+.fi
+.NH 3
+Elliptical Annuli
+.LP
+	The \fBcdl_markEllipAnnuli()\fR procedure is used to draw
+\fInannuli\fR ellipses separated by \fIsep\fR pixels each.  The ellipse is
+centered at (\fIx,y\fR) with an initial semimajor and semiminor axis 
+specified by the \fIxrad\fR and \fIyrad\fR arguments.  Each ellipse will
+be optionally rotate by an \fIangle\fR degrees as measured from the positive
+x-axis.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markEllipAnnuli (CDLPtr cdl, x, y, xrad, yrad, ang,
+	    int nannuli, int sep, int color)\fR
+.fi
+.NH 3
+Text
+.LP
+	The \fBcdl_markText()\fR procedure is used to draw a text string
+specified by \fIstr\fR argument with an initial position at (\fIx,y\fR)
+and optionally rotated by \fIangle\fR degrees as measured from the positive
+x-axis.  The default \fIsize\fR is 1.0 and is approximately a 6x13 font,
+the font size may be scaled by any fractional amount.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markText (CDLPtr cdl, int x, int y, char *str,
+	    float size, float angle, int color)\fR
+.fi
+.NH 2
+Text Fonts
+.LP
+	The \fBcdl_setFont()\fR procedure is used to choose between one
+of four available fonts as the text marker default: Roman, Greek, Futura,
+and Times respectively.  By default the Roman font will be used. 
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFont (CDLPtr cdl, int font)\fR
+.fi
+A complete listing of the Greek character mappings can be found in the file
+'greek.ps' in the 'doc' subdirectory of the CDL distribution.
+.NH 3
+In-Line Font Changes
+.LP
+	Text markers are drawn using the font selected with the cdl_setFont()
+routine, however fonts may be change within a string itself (e.g. to set
+a Greek character) using a \\f escape sequence.    The escape is followed 
+by the character 'R' to set a Roman font, 'G' for Greek, 'F' for futura
+and 'T' for Times.  Any number of escapes are permitted within a string,
+the font change will remain in effect until it is changed, or the end of 
+string at which point any subsequent strings will again be drawn with the
+default font.  Additionally a 'P' in the escape sequence will change the
+font to the one previously used, whatever that may be.
+.LP
+	The CDL also supports a sub/superscripting of text which is also 
+done with the font escapes.  In this case the escape character followed by a
+'U' produces a superscript and a 'D' produces a subscript.  The changes may
+be nested permitting several levels of sub/superscripts,  these escapes may
+also be used in conjustion with a font change to cause the sub/superscript
+to be drawn with a different font.  A superscript escape will remain in
+effect until the end of the string or a \\fD escape is seen.  Similary a
+subscript remains in effect until the end of the string of a \\fU escape.
+.TS
+center;
+c s
+l l.
+Summary of Font Escapes
+.sp 0.5
+\\\\fR	change to Roman font
+\\\\fG	change to Greek font
+\\\\fF	change to Futura font
+\\\\fT	change to Times font
+\\\\fP	change to previous font
+\\\\fU	begin superscripted text
+\\\\fD	begin subscripted text
+.TE
+.NH 2
+Deleting Markers
+.LP
+	When markers are drawn the underlying subraster is first saved to
+an internal structure, erasure is done by simply redisplaying the saved
+raster.  Problems can arise however when markers overlap;  when deleting a
+marker that is \fIunder\fR another marker the original pixels can overwrite
+the pixels of the marker on top.  This is an unfortunate side effect of the
+simple scheme used in this version of the package, users can call the
+\fBcdl_redrawOverlay()\fR procedure to help clean up any artifacts left
+behind.
+.NH 3
+Individual Markers
+.LP
+	The \fBcdl_deleteMark()\fR procedure is used to delete a single
+marker from the display().  The (\fIx,y\fR) argument is either the center
+position of the marker if that is know by the application, more typically
+it will be an approximate position.  In the latter case the marker whose
+center is closest to this position will be deleted.  For markers with no
+defined center  the distance used to decide if the marker should be
+deleted is the distance from the argument position to the edge of the 
+marker.  For example, distance from a box or polygon is measured as the
+distance from to one of the sides, for text it is the distance to the
+start of the text string.  There is no way to \fIun\fRdelete a marker other
+than to redraw it.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_deleteMark (CDLPtr cdl, int x, int y)\fR
+.fi
+.NH 3
+The Entire Overlay
+.LP
+	To erase all markers currently displayed use the
+\fBcdl_clearOverlay()\fR procedure.  Markers are erased in the reverse order
+they were drawn to help reduce the chance that overlaying markers will leave
+stray pixels.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_clearOverlay (CDLPtr cdl)\fR
+.fi
+.NH 2
+Redraw
+.LP
+	The \fBcdl_redrawOverlay()\fR procedure can be used to redraw all
+markers currently in the display list.  This is sometimes needed when 
+subraster I/O procedures are used to redisplay subregions and overwrite
+existing markers.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_redrawOverlay (CDLPtr cdl)\fR
+.fi
+.NH
+Fortran Language Binding Notes
+.LP
+	The Fortran languange binding routines are implemented in C but
+should be accessible from any fortran program as though they were real
+fortran subroutines.  The calling sequences are the same as with the C
+library routines with the following exceptions:
+.IP
+\(bu  The CDL package pointer is maintained internally so no 'cdl' pointer is
+passed in the fortran interface.
+.IP
+\(bu  All routines which are integer procedures in the C interface return an
+extra 'ier' argument to contain the error flag.  All Fortran functions are
+implemented as subroutines.
+.IP
+\(bu  The procedure names are the same except that \fIcdl_\fR has been
+replaced with \fIcf\fR in the fortran binding.  If your compiler is
+case-sensitive then use all lower case letters.
+.LP
+The binding has been tested on a number of different platforms without 
+problems.  The procedure names haven't been restricted to the traditional
+6-character fortran names since most modern compilers can handle longer
+names, if yours isn't one of them contact \fIiraf@noao.edu\fR for help
+in changing the names.
+.LP
+	Since the CDL is implemented as a set of C routines, the one aspect
+that cannot be overlooked in the fortran binding is the between Fortran and
+C storage order for arrays.  In most cases this will not be a problem since
+the CDL routines are just passing around pointers even if they live for a 
+short while in a fortran program.  The problem comes when using the fortran
+program to read the arrays, for example in using the array returned by the
+\fBcfreadIRAF()\fR procedure, or when passing in arrays for display that
+originated in the user's fortran code.  In these cases the array \fBmust\fR
+be transposed to be interpreted correctly.  It was assumed that in most
+applications arrays returned by CDL procedures would be immediately passed
+to other CDL procedures so having the binding routines
+transpose the array to/from
+Fortran storage order was unnecessarily inefficient.  This may be changed in
+later releases if required.
+
+.NH
+SPP Language Binding Notes
+.LP
+	The SPP language binding is experimental and is intended to provide
+a way to quickly prototype tasks, it should not be used in production code
+as it may not be as portable as the rest of the task.  In essence this 
+binding is layer on top of the Fortran binding since most IRAF platforms
+still use Fortran as the intermediate code.  The calling sequences are the
+same as with the Fortran library routines with the following caveats:
+.IP
+\(bu  The 'cdlspp.h' SPP include file is required by all files which call
+CDL routines.  The binding names are actually SPP macros to resolve the
+current 6 character limit on procedure name.
+.IP
+\(bu  The CDL package pointer is maintained internally so no 'cdl' pointer is
+passed in the fortran interface.
+.IP
+\(bu  All routines which are integer procedures in the C interface return an
+extra 'ier' argument to contain the error flag.  All SPP functions are
+implemented as subroutines.
+.IP
+\(bu  The procedure names are the same except that they are all upper case
+and the \fIcdl_\fR has been replaced with \fICDS_\fR in the SPP binding.  The
+upper case is required.
+
+.NH
+IIS Protocol Description
+.LP
+	The communications protocol used by the CDL and servers such as 
+\fIXImtool\fR and \fISAOimage\fR, is a slightly modified version of that used
+by the IIS Model 70.  All operations are initiated by sending a header 
+packet containing a \fIthing id\fR (tid) and \fIsubunit\fR selecting the
+function to be performed, optionally followed by data up to 32K bytes long.
+The IIS header packet used is defined as
+.nf
+		\f(CWstruct  iism70 {
+        		short   tid;
+        		short   thingct;
+        		short   subunit;
+        		short   checksum;
+        		short   x, y, z;
+        		short   t;
+		};\fR   
+.fi
+
+The \fIthing count\fR field contains the negative number of bytes of data
+that will be sent following the header packet.  The IIS header checksum is
+computed as 
+.nf
+\f(CW
+    checksum = 0177777 - (tid + subunit + thingct + x + y + z + t);
+\fR
+.fi
+The four IIS registers are set differently depending on the operation, a
+summary of the header packets for each operation is summarized below. 
+
+.ce 1
+\fBIIS Header Packet Summary\fR
+.TS
+tab(:);
+c c c c c c c c c.
+:TID:Subunit:Thingct:X:Y:Z:T:Data
+.T&
+l | l | l | c | c | c | l | l | l |.
+:_:_:_:_:_:_:_:_
+Read Data:IIS_READ\fB|\fPPACKED:MEMORY:-nbytes:x:y:frame:-:nbytes
+Write Data:IIS_WRITE\fB|\fPPACKED:MEMORY:-nbytes:x:y:frame:-:nbytes
+Read Cursor:IIS_READ:IMCURSOR:-:-:-:-:-:-
+Write Cursor:IIS_WRITE:IMCURSOR:-:x:y:wcs:-:-
+Set Frame:IIS_WRITE:LUT\fB|\fPCOMMAND:-1:-:-:-:-:2
+Write WCS:IIS_WRITE\fB|\fPPACKED:WCS:-N:-:-:frame:fb:N
+Read WCS:IIS_READ:WCS:-:-:-:-:-:320
+Erase Frame:IIS_WRITE \fB|\fP fb:FEEDBACK:-:-:-:frame:-:-
+:_:_:_:_:_:_:_:_
+.TE
+.TS
+l l l.
+Where	nbytes	= number of bytes expected or written
+	x	= x postion of operation in frame buffer coords
+	y	= y postion of operation in frame buffer coords
+	frame	= frame number (passed as bitflag (i.e. 1, 2 ,4 8, etc)
+	fb	= frame buffer config number (zero indexed)
+	N	= length of WCS string
+	wcs	= WCS number (usually zero)
+	Data	= the number of bytes of data to be read or written following the header packet.
+
+	IIS_WRITE	 = 0400000
+	IIS_READ	 = 0100000   
+	COMMAND	 = 0100000
+	PACKED	 = 0040000
+	IMC_SAMPLE	 = 0040000
+		
+	MEMORY	 = 001
+	LUT	 = 002
+	FEEDBACK	 = 005
+	IMCURSOR	 = 020
+	WCS	 = 021
+.TE
+.LP
+TID fields can be logically OR'd with the PACKED flag indicating the number
+of data bytes is exactly \fIthingct\fR bytes long, otherwise \fIthingct\fR
+must be specified as half the number of data bytes.  In a cursor read, if
+the IIS_READ flag is OR'd with IMC_SAMPLE the logical cursor position (i.e.
+the last value read or set) is returned immediately, otherwise the server
+will wait for a keystroke to be hit before returning a string containing the
+(x,y) position, wcs of the read, and the keystroke.  When setting the frame
+you must send a short integer in the data containing the frame selected.
+.bp
+.NH
+C Interface Summary
+.LP
+.in 0.5i
+#include  "\fBcdl.h\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+CDLPtr \fBcdl_open\fR	(imtdev)
+int \fBcdl_displayPix\fR	(cdl, pix, nx, ny, bitpix, frame, fbconfig, zscale)
+char \fBcdl_readCursor\fR	(cdl, sample, x, y, key)
+int \fBcdl_setCursor\fR	(cdl, x, y, wcs)
+int \fBcdl_setWCS\fR	(cdl, name, title, a, b, c, d, tx, ty, z1, z2, zt)
+int \fBcdl_getWCS\fR	(cdl, name, title, a, b, c, d, tx, ty, z1, z2, zt)
+void \fBcdl_setFrame\fR	(cdl, frame)
+int \fBcdl_clearFrame\fR	(cdl)
+void \fBcdl_close\fR	(cdl)
+
+int \fBcdl_displayIRAF\fR	(cdl, fname, band, frame, fbconfig, zscale)
+int \fBcdl_isIRAF\fR	(fname)
+int \fBcdl_readIRAF\fR	(fname, band, pix, nx, ny, bitpix)
+
+int \fBcdl_displayFITS\fR	(cdl, fname, frame, fbconfig, zscale)
+int \fBcdl_isFITS\fR	(fname)
+int \fBcdl_readFITS\fR	(fname, pix, nx, ny, bitpix)
+
+void \fBcdl_computeZscale\fR	(cdl, pix, nx, ny, bitpix, z1, z2)
+void \fBcdl_zscaleImage\fR	(cdl, pix, nx, ny, bitpix, z1, z2)
+
+int \fBcdl_printPix\fR	(cdl, cmd, pix, nx, ny, annotate)
+int \fBcdl_printPixToFile\fR	(cdl, fname, pix, nx, ny, annotate)
+
+int \fBcdl_readImage\fR	(cdl, pix, nx, ny)
+int \fBcdl_readFrameBuffer\fR	(cdl, pix, nx, ny)
+int \fBcdl_readSubRaster\fR	(cdl, lx, ly, nx, ny, pix)
+int \fBcdl_writeSubRaster\fR	(cdl, lx, ly, nx, ny, pix)
+
+void \fBcdl_selectFB\fR	(cdl, nx, ny, fb, w, h, nf, reset)
+void \fBcdl_setFBConfig\fR	(cdl, configno)
+void \fBcdl_getFBConfig\fR	(cdl, configno, w, h, nf)
+void \fBcdl_lookupFBSize\fR	(cdl, configno, w, h, nf)
+
+void \fBcdl_setZTrans\fR	(cdl, ztrans)
+void \fBcdl_setZScale\fR	(cdl, z1, z2)
+void \fBcdl_setSample\fR	(cdl, nsample)
+void \fBcdl_setSampleLines\fR	(cdl, nlines)
+void \fBcdl_setContrast\fR	(cdl, contrast)
+void \fBcdl_setName\fR	(cdl, imname)
+void \fBcdl_setTitle\fR	(cdl, imtitle)
+
+void \fBcdl_getFrame\fR	(cdl, frame)
+void \fBcdl_getZTrans\fR	(cdl, ztrans)
+void \fBcdl_getZScale\fR	(cdl, z1, z2)
+void \fBcdl_getSample\fR	(cdl, nsample)
+void \fBcdl_getSampleLines\fR	(cdl, nlines)
+void \fBcdl_getContrast\fR	(cdl, contrast)
+void \fBcdl_getName\fR	(cdl, imname)
+void \fBcdl_getTitle\fR	(cdl, imtitle)
+
+int \fBcdl_mapFrame\fR	(cdl, frame)
+int \fBcdl_markPoint\fR	(cdl, x, y, number, size, type, color)
+int \fBcdl_markPointLabel\fR	(cdl, x, y, label, size, type, color)
+int \fBcdl_markLine\fR	(cdl, xs, ys, xe, ye, color)
+int \fBcdl_markBox\fR	(cdl, lx, ly, ux, uy, fill, color)
+int \fBcdl_markPolygon\fR	(cdl, xarray, yarray, npts, fill, color)
+int \fBcdl_markPolyline\fR	(cdl, xarray, yarray, npts, color)
+int \fBcdl_markCircle\fR	(cdl, x, y, radius, fill, color)
+int \fBcdl_markCircAnnuli\fR	(cdl, x, y, radius, nannuli, sep, color)
+int \fBcdl_markEllipse\fR	(cdl, x, y, xrad, yrad, rotang, fill, color)
+int \fBcdl_markEllipAnnuli\fR	(cdl, x, y, xrad, yrad, ang, nannuli, sep, color)
+int \fBcdl_markText\fR	(cdl, x, y, str, size, angle, color)
+int \fBcdl_deleteMark\fR	(cdl, x, y)
+int \fBcdl_clearOverlay\fR 	(cdl)
+int \fBcdl_redrawOverlay\fR 	(cdl)
+.TE
+
+.bp
+.NH
+C Example Tasks
+.LP
+	The examples shown here are for demonstration purposes only.  They
+are based on working example tasks in the CDL source \fIexamples\fR
+subdirectory, see the programs there for the full program listing.
+
+.NH 2
+Display Example
+.LP
+.ps -2
+.vs -2
+.nf
+\f(CW
+#include <stdio.h>
+#include <unistd.h>
+#include "cdl.h"
+
+/*  \fIDISPLAY -- Example task to display an image as a command-line task.
+  *  This task is meant to show three ways the CDL can be used to display
+  *  an image, see the code comments for a description of each method.
+  *
+  *  Examples:
+  *      To display a simple IRAF or FITS file:
+  *	    % ./display -frame 2 image.imh
+  *         % ./display image.fits
+  *
+  *      To display a FITS file as a raw image:
+  *          % ./display -nx 512 -ny 512 -depth 16 -hskip 5760 -raw dpix.fits
+  *
+  *  Usage:
+  * 	display [-depth N] [-fits] [-frame N] [-fbconfig N] [-hskip N]
+  *	    [-iraf] [-nozscale] [-nx N] [-ny N] [-raw] [-zscale] file\fP
+ */
+
+#define NONE	-1
+#define	IRAF	 0
+#define	FITS	 1
+#define	RAW	 2
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname;
+	int	i, status = 0, frame = 1, fbconfig = 0, zscale = 1;
+	int	format = NONE, nx = 0, ny = 0, depth = 8, hskip = 0;
+	float 	z1, z2;
+	int	fb_w, fb_h, nf;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	    for (i=1; i < argc; i++) {
+            if (strcmp (argv[i], "-depth") == 0)         depth = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-fits") == 0)     format = FITS;
+            else if (strcmp (argv[i], "-frame") == 0)    frame = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-fbconfig") == 0) fbconfig = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-hskip") == 0)    hskip = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-iraf") == 0)     format = IRAF;
+            else if (strcmp (argv[i], "-nozscale") == 0) zscale = 0;
+            else if (strcmp (argv[i], "-nx") == 0)       nx = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-ny") == 0)       ny = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-raw") == 0)      format = RAW;
+            else if (strcmp (argv[i], "-zscale") == 0)   zscale = 1;
+	    }
+	}
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	fname = argv[argc-1];
+
+	/* \fIMETHOD 1:  Displays the image using the high-level format display
+ 	  * call.  Display as an IRAF image if the option was set indicating
+	  * this is the format, otherwise test the file to see if it is anyway.\fP
+	 */
+	if (format == IRAF || (format == NONE && \fBcdl_isIRAF\fP (fname))) {
+	    status = \fBcdl_displayIRAF\fP (cdl, fname, 1, frame, FB_AUTO, zscale);
+
+	/* \fIMETHOD 2:  Uses the CDL procedure for getting image pixels from
+	  * a known format, minimal work required to display an image.  The
+ 	  * point here is that you can use this method to process the image
+	  * yourself prior to display, e.g. subsample the pixels, apply a user
+	  * LUT, etc but still use the CDL to get the raw image and do the
+	  * display.\fP
+	 */
+	} else if (format == FITS || (format == NONE && \fBcdl_isFITS\fP (fname))) {
+
+	    /* \fIGet the FITS image pixels, exit w/ an error status if something
+	     * went wrong, the procedure will print what that was.\fP
+	     */
+            if (\fBcdl_readFITS\fP (fname, &pix, &nx, &ny, &depth)) {
+                \fBcdl_close\fP (cdl);		/* close the package  */
+                 exit (1);			/* exit w/ error code */
+            }
+
+            /* \fINow select a frame buffer large enough for the image. The 
+              * fbconfig number is passed in the WCS packet, but the display
+              * call below will compute the correct WCS for the image and
+              * transmit that prior to display, all we're doing here is
+              * setting up the FB to be used.\fP
+             */
+            if (fbconfig == 0)
+                cdl_selectFB (cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf, 0);
+
+           /* \fILastly, display the pixels to the requested frame, do any
+             * zscaling requested using the CDL procedure.\fP
+            */
+            status = \fBcdl_displayPix\fP (cdl, pix, nx, ny, depth, frame, 
+		fbconfig, zscale);
+
+	/* \fIMETHOD 3:  Displays an image of raw pixels.  The client code is
+	  * responsible for reading the image and calling all the procedures
+	  * needed for image display, initialize the frame, zscaling pix, etc.
+	  * While we assume a simple raster format in this program, the user
+	  * code can read a compressed image format such as GIF, mosaic multiple
+	  * images for display as a single image, or just about anything that
+	  * produces a raster for display. The intent here is to show all the
+	  * lowest level calls needed for displaying the image.\fP
+	 */
+	} else if (format == RAW) {
+	    FILE	*fd;
+	    int		lx, ly;
+
+	    if (nx == 0 || ny == 0) {
+	        fprintf (stderr, "No size given for raw data.\\n");
+	        exit (1);
+	    }
+
+	    /* \fIOpen the image file if we can.\fP */
+	    if (fd = fopen (fname, "r")) {
+
+		/* \fISeek to the offset specified.\fP */
+		lseek (fileno(fd), (off_t) hskip, SEEK_SET);
+
+		/* \fIAllocate the pixel pointer and read the data.\fP */
+		pix = (unsigned char *) malloc (nx * ny * (depth / 8));
+		fread (pix, depth/8, nx * ny, fd);
+
+		/* \fIIf we're zscaling and depth is more than 8-bits, do that.\fP */
+		if (zscale && depth > 8) {
+		    \fBcdl_computeZscale\fP (cdl, pix, nx, ny, depth, &z1, &z2);
+		    \fBcdl_zscaleImage\fP (cdl, &pix, nx, ny, depth, z1, z2);
+		}
+
+		/* \fINow select a frame buffer large enough for the image.  We'll
+		  * ask that this be reset but the change won't go to the server
+		  * until we send in a WCS, so compute that as well.  For the
+		  * WCS we assume a simple linear transform where the image is
+		  * Y-flipped, the (x,y) translation is computed so it is correct
+		  * for an frame buffer >= than the image size.\fP
+		 */
+                \fBcdl_selectFB\fP(cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf,1);
+                \fBcdl_setWCS\fP (cdl, fname, NULL, 1., 0., 0., -1., 
+		    (float) (nx / 2) - (fb_w / 2) + 1,   /* \fIX trans.\fP */
+		    (float) (fb_h / 2) + (ny / 2),	 /* \fIY trans.\fP */
+		    z1, z2, CDL_LINEAR);		 /* \fIZ transform\fP */
+
+		/* \fISelect and clear the requested frame prior to display.\fP */
+		\fBcdl_setFrame\fP (cdl, frame);
+		\fBcdl_clearFrame\fP (cdl);
+
+		/* \fINow display the pixels.  We'll compute the image placement
+	   	  * ourselves and write the image as a raw subraster of the frame
+		  * buffer.  In this case we'll center the image, but the CDL
+		  * cdl_writeSubRaster() procedure can be used to write arbitrary
+		  * rasters at any point in the frame buffer.\fP
+		 */
+        	lx = (fb_w / 2) - (nx / 2);
+        	ly = fb_h - ((fb_h / 2) + (ny / 2));
+                status = \fBcdl_writeSubRaster\fP (cdl, lx, ly, nx, ny, pix);
+	    } else
+		status = 1;
+	} else {
+	    if (access (fname, F_OK) == 0)
+		fprintf (stderr, "'%s': unknown image format.\\n", fname);
+	    else
+		fprintf (stderr, "'%s': image does not exist.\\n", fname);
+	    status = 1;
+	}
+
+	/* \fINow just free the pixel pointer to clean up.\fP */
+	if (pix)
+	    free ((unsigned char *) pix);
+	\fBcdl_close\fP (cdl);		/* \fIclose the package\fP */
+	exit (status);
+}
+\fR
+.fi
+.vs +2
+.ps +2
+.bp
+.NH 2
+Interactive Graphics Overlay Example
+.LP
+.ps -2
+.vs -2
+.nf
+\f(CW
+#include <stdio.h>
+#include <unistd.h>
+#include <math.h>
+#include "cdl.h"
+
+/* \fI
+  *  TVMARK -- Example task for displaying an marking images.  This program
+  *  can be used to either display an image and overlay points defined in
+  *  a coordinate file, map an existing display frame for marking, or option-
+  *  ally enter a cursor command loop after either of these providing other
+  *  marking capability.  All options support minimum match.
+  *
+  *  Examples:
+  *	% tvmark dpix.fits
+  * 	% tvmark -coords coords -color 205 dpix.fits
+  *	% tvmark -frame 2
+  *	% tvmark -coords coords -interactive dpix.fits
+  *
+  *  Usage:
+  * 	tvmark [-frame N] [-fbconfig N] [-coords <file>] [-size N] [-color N]
+  *	     [-nolabel] [-fill] [-interactive] [image]\fP
+ */
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname = NULL, *cfname = NULL;
+	int	i, status = 0, fill = 0, frame = 1, fb = FB_AUTO, zscale = 1;
+	int	color = 201, label = 1, size = 9, interactive = 0;
+	float 	z1, z2;
+	int	fb_w, fb_h, nf;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	    for (i=1; i < argc; i++) {
+            if (strncmp(argv[i], "-color",4) == 0) color = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-coords",4) == 0) cfname = argv[++i];
+            else if (strncmp(argv[i], "-fbconfig",3) == 0) fb = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-fill",4) == 0) fill = 1;
+            else if (strncmp(argv[i], "-frame",3) == 0) frame = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-interactive",4) == 0) interactive = 1;
+            else if (strncmp(argv[i], "-nolabel",4) == 0) label = 0;
+            else if (strncmp(argv[i], "-nozscale",4) == 0) zscale = 0;
+            else if (strncmp(argv[i], "-size",2) == 0) size = atoi (argv[++i]);
+	    else 
+	        fname = argv[i];
+	    }
+	}
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* \fIIf an image was specified display it first, otherwise assume the
+	  * image has already been loaded in the frame and mark that.\fP
+	 */
+	if (fname) {
+	    if (\fBcdl_isIRAF\fP (fname))
+	        status = \fBcdl_displayIRAF\fP (cdl, fname, 1, frame, fb, zscale);
+	    else if (\fBcdl_isFITS\fP (fname))
+	        status = \fBcdl_displayFITS\fP (cdl, fname, frame, fb, zscale);
+	    else {
+		if (access (cfname, F_OK) == 0)
+	            fprintf (stderr, "'%s': unknown image format.\\n", fname);
+	 	else
+	            fprintf (stderr, "'%s': image doesn't exist.\\n", fname);
+	        status = 1;
+	    }
+	    if (status)  goto err_;
+	} else {
+	
+	    /* \fIIf we've requested a special frame buffer, set it now.\fP */
+	    if (fb > 0)
+		  \fBcdl_setFBConfig\fP (cdl, fb);
+
+	    /* \fIMap the current display frame for use as an image.\fP */
+	    \fBcdl_mapFrame\fP (cdl, frame);
+	}
+
+	/* \fIIf a coordinate file was specified read the file and mark those
+	  * coords with points.\fP
+	 */
+	if (cfname) {
+	    if (access (cfname, F_OK) == 0) {
+		FILE	*fp;
+		int	i, x, y;
+
+		if (fp = fopen (cfname, "r")) {
+		    /* \fIThe coord file is assumed to be simply a file containing
+		         * (x,y) pairs, one per line.  Scan the file and mark each
+		         * point.  We do no bounds checking to see if the coords
+		         * are correct for the frame, marker type is fixed.\fP
+		     */
+		    i = 1;
+		    while (fscanf (fp, "%d %d", &x, &y) != EOF) {
+			if (label)
+			    \fBcdl_markPoint\fP (cdl, x, y, i++, size, M_STAR, color);
+			else
+			    \fBcdl_markPoint\fP (cdl, x, y, 0, size, M_STAR, color);
+		    }
+
+		} else
+	            fprintf (stderr, "cannot open coord file '%s'.\\n", cfname);
+	    } else
+	        fprintf (stderr, "'%s': coord file doesn't exist, ignoring.\\n", cfname);
+	}
+
+	/* \fILastly, start up an interactive cursor loop if needed.\fP */
+	if (interactive)
+	    tvmInteractive (cdl, label, fill, color, size);
+	
+	/* \fIClose the package and clean up.\fP */
+err_:	\fBcdl_close\fP (cdl);			
+	exit (status);
+}
+
+/*  \fITVMINTERACTIVE -- Process commands interactively.\fP  */
+
+tvmInteractive (cdl, label, fill, color, size)
+CDLPtr	cdl;
+int	label, fill, color, size;
+{
+	float   angle = 0.0, rx, ry, txsize = 1.;
+	int     nx, ny, i, x, y, x2, y2;
+	int     number=1, radius=11, xrad=11, yrad=6, nannuli=3, sep=5;
+	char    key, cmd[SZ_NAME], str[SZ_NAME];
+	unsigned char *pix;
+
+	/* \fIProcess commands until a 'q' keystrke is hit.\fP */
+	while (\fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &key) != 'q') {
+	    x = (int) (rx + 0.5);	/* \fIconvert to int pixels\fP */
+	    y = (int) (ry + 0.5);
+
+	    switch (key) {
+	    case ':':			/* \fIprocess a colon command\fP */
+		putchar (':');
+		gets (str);
+		for (i=0; str[i] != ' ' && str[i]; i++)
+		    cmd[i] = str[i];
+		cmd[i++] = '\0';
+
+		if (strcmp (cmd, "angle") == 0)        angle = atof (&str[i]);
+		else if (strcmp (cmd, "color") == 0)   color = atoi (&str[i]);
+		else if (strcmp (cmd, "fill") == 0)    fill = atoi (&str[i]);
+		else if (strcmp (cmd, "number") == 0)  number = atoi (&str[i]);
+		else if (strcmp (cmd, "nannuli") == 0) nannuli = atoi (&str[i]);
+		else if (strcmp (cmd, "label") == 0)   label = atoi (&str[i]);
+		else if (strcmp (cmd, "sep") == 0)     sep = atoi (&str[i]);
+		else if (strcmp (cmd, "size") == 0)    size = atoi (&str[i]);
+		else if (strcmp (cmd, "txsize") == 0)  txsize = atof (&str[i]);
+		else if (strcmp (cmd, "xrad") == 0)    xrad = atoi (&str[i]);
+		else if (strcmp (cmd, "yrad") == 0)    yrad = atoi (&str[i]);
+		else if (strcmp (cmd, "print") == 0) {
+		    \fBcdl_readFrameBuffer\fP (cdl, &pix, &nx, &ny);
+		    \fBcdl_printPix\fP (cdl, NULL, pix, nx, ny, 1);
+		} else if (strcmp (cmd, "snap") == 0) {
+		    \fBcdl_readFrameBuffer\fP (cdl, &pix, &nx, &ny);
+		    \fBcdl_printPixToFile\fP (cdl, &str[i], pix, nx, ny, 1);
+		} else if (strcmp (cmd, "status") == 0) {
+		    printf ("angle	= %-5.3g\tcolor	= %d\t", angle, color);
+		    printf ("fill	= %-5d\tnumber	= %d\\n", fill, number);
+		    printf ("nannuli	= %-5d\tsep	= %d\t", nannuli, sep);
+		    printf ("size	= %-5d\ttxsize	= %g\\n", size, txsize);
+		    printf ("xrad	= %-5d\tyrad	= %d\t", xrad, yrad);
+		    printf ("label	= %-5d\\n", label);
+		}
+		break;
+
+	    case '?':
+		/* ......\fIhelp procedures\fP */
+		break;
+
+	    case 'p':				/* \fIplus mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_PLUS, color);
+		break;
+	    case 'x':				/* \fIcross mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_CROSS, color);
+		break;
+	    case '.':				/* \fIpoint mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_POINT, color);
+		break;
+	    case '*':				/* \fIstar mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_STAR, color);
+		break;
+	    case '_':				/* \fIhoriz dash mark\fP*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_HBLINE, color);
+		break;
+	    case '|':				/* \fIvert dash mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_VBLINE, color);
+		break;
+	    case 'o':				/* \fIcircle mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_CIRCLE|fill, color);
+		break;
+	    case 's':				/* \fIsquare mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_BOX|fill, color);
+		break;
+	    case 'v':				/* \fIdiamond mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_DIAMOND|fill, color);
+		break;
+
+	    case 'b':				/* \fIBox\fP		*/
+		printf ("Hit another key to define the box...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		\fBcdl_markBox\fP (cdl, x, y, x2, y2, fill, color);
+		break;
+	    case 'c':				/* \fICircle\fP		*/
+		printf ("Hit another key to set radius ...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		radius = (int) sqrt ((double) ((x2-x)*(x2-x) + (y2-y)*(y2-y)));
+		\fBcdl_markCircle\fP (cdl, x, y, radius, fill, color);
+		break;
+	    case 'd':				/* \fIDelete marker\fP	*/
+		\fBcdl_deleteMark\fP (cdl, x, y);
+		break;
+	    case 'e':				/* \fIEllipse\fP	*/
+		\fBcdl_markEllipse\fP (cdl, x, y, xrad, yrad, angle, fill, color);
+		break;
+	    case 'l':				/* \fILine\fP		*/
+		printf ("Hit another key to set line endpoint...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		\fBcdl_markLine\fP (cdl, x, y, x2, y2, color);
+		break;
+	    case 't':				/* \fIText string\fP	*/
+		printf ("Text string: ");
+		gets (str);
+		\fBcdl_markText\fP (cdl, x, y, str, txsize, angle, color);
+		break;
+	    case 'C':				/* \fICircular annuli\fP*/
+		\fBcdl_markCircAnnuli\fP (cdl, x, y, radius, nannuli, sep, color);
+		break;
+	    case 'D':				/* \fIDelete all markers\fP*/
+		\fBcdl_clearOverlay\fP (cdl);
+		break;
+	    case 'E':				/* \fIElliptical annuli\fP*/
+		\fBcdl_markEllipAnnuli\fP (cdl, x, y, xrad, yrad, angle, nannuli, sep, color);
+		break;
+	    default:
+		break;
+	    }
+	}
+}
+\fR
+.fi
+.vs +2
+.ps +2
+.bp
+.NH 2
+Image Mosaic Example
+.LP
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+#include <stdio.h>
+#include <unistd.h>
+#\fBinclude "cdl.h"\fP
+
+/* \fIMOSAIC -- Example task to mosaic several images on a display. Demonstrates
+ * usage of low-level routines for complex display operations.\fP
+ */
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname = NULL;
+	int	i, j, k, status=0, label=0, frame=1, fb=FB_AUTO, zscale=1;
+	int	sample=1, pad=0, col=204, imx, imy, bitpix, nimages, nim;
+	int	ii, xinit, rowx, rowy, nnx, nny, fb_w, fb_h, nf, mx, my, nx, ny;
+	float 	z1, z2;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	  for (i=1; i < argc; i++) {
+            if (strncmp (argv[i], "-fbconfig",3) == 0) fb=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-frame",3) == 0) frame=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-color",3) == 0) col=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-label",4) == 0) label=1;
+	    else if (strncmp (argv[i],"-nozscale",4) == 0) zscale=0;
+	    else if (strncmp (argv[i],"-nx",3) == 0) nx=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-ny",3) == 0) ny=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-pad",4) == 0) pad=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-sample",4) == 0) sample=atoi(argv[++i]);
+	    else 
+	        break;
+	  }
+	}
+	nimages = argc - i;
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* \fIClear the frame to begin.\fP */
+	(void) \fBcdl_clearFrame\fP (cdl);
+
+	/* \fILoop over each of the images in the list.\fP */
+	nim = rowx = rowy = nnx = nny = 0;
+	for (k=0; k < ny && nim < nimages; k++) {
+	    rowy += nny + pad; 
+	    for (rowx = xinit, j=0; j < nx && nim < nimages; j++) {
+
+		/* \fIGet the image name for display.\fP */
+		fname = argv[i++];
+
+		/* \fIFigure out what kind of image it is and get the pixels.\fP */
+            	if (cdl_isIRAF (fname))
+		    status = \fBcdl_readIRAF\fP (fname, 1, &pix, &imx, &imy, &bitpix);
+            	else if (cdl_isFITS (fname))
+		    status = \fBcdl_readFITS\fP (fname, &pix, &imx, &imy, &bitpix);
+            	else {
+		    fprintf(stderr, "'%s': unknown or nonexistant image.\\n", fname);
+		    status = 1;
+            	}
+            	if (status)  goto err_; 
+
+		/* \fICompute subsampled image size.\fP */
+		if (sample > 1)
+		    nnx = imx / sample, nny = imy / sample;
+		else
+		    nnx = imx, nny = imy;
+
+		/* \fIUnless we asked for a specific FB size find one large enough
+		 * to handle the mosaic.  We don't check to be sure what's
+		 * returned is really large enough.\fP
+		 */
+		if (nim == 0 && fb == FB_AUTO)
+		    \fBcdl_selectFB\fP (cdl, nx*nnx+(pad*(nx-1)), ny*nny+(pad*(ny-1)), &fb, &fb_w, &fb_h, &nf, 1);
+		else {
+		    \fBcdl_setFBConfig\fP (cdl, fb);
+		    \fBcdl_lookupFBSize\fP (cdl, fb, &fb_w, &fb_h, &nf);
+		}
+
+		/* \fIDefine a WCS for the frame.\fP */
+		\fBcdl_setWCS\fP (cdl, "image mosaic", "", 1., 0., 0., -1., 0., (float) ny*imy+(pad*(ny+1)), 1., 255., 1);
+
+		/* \fIThe first time through figure out the placement so the
+	   	 * entire mosaic is centered in the frame.\fP
+		 */
+		if  (nim == 0) {
+		    mx = (nx * nnx) + pad * (nx-1);
+		    my = (ny * nny) + pad * (ny-1);
+		    rowy = (fb_h - my) / 2;
+		    xinit = rowx = (fb_w - mx) / 2;
+		}
+
+		/* \fICompute the zscaled imaged pixels.\fP */
+		if (zscale) {
+		    \fBcdl_computeZscale\fP (cdl, pix, imx ,imy, bitpix, &z1, &z2);
+		    \fBcdl_zscaleImage\fP (cdl, &pix, imx ,imy, bitpix, z1, z2);
+		}
+
+		/* \fISubsample the image if requested.\fP */
+		if (sample > 1) {
+		    int l, m, n=0; 
+		    for (l=0; l < imy; l+=sample)
+		        for (m=0; m < imx; m+=sample)
+		            pix[n++] = pix[(l*imx)+m];
+		}
+
+		/* \fIWrite the image to the frame buffer.\fP */
+            	if (\fBcdl_writeSubRaster\fP (cdl, rowx, rowy, nnx, nny, pix)) goto err_; 
+
+		/* \fIDraw the image name as a label.\fP */
+		if (label) \fBcdl_markText\fP (cdl, rowx+10, rowy+10, fname, 1., 0., col);
+
+		nim++; 	rowx += nnx + pad; 
+	    }
+	}
+	
+	/* \fIClose the package and clean up.\fP */
+err_:	\fBcdl_close\fP (cdl);			
+	exit (status);
+}
+.fi
+.vs +2
+.ps +2
+.in -0.5i
+
+.bp
+.NH
+Fortran  Interface Summary
+.LP
+.in 0.5i
+include  "\fBcdlftn.inc\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+\fBcfopen\fR	(imtdev, ier)
+\fBcfdisplayPix\fR	(pix, nx, ny, bitpix, frame, fbconfig, zscale, ier)
+\fBcfreadCursor\fR	(sample, x, y, key, ier)
+\fBcfsetCursor\fR	(x, y, wcs, ier)
+\fBcfsetWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcfgetWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcfsetFrame\fR	(frame)
+\fBcfclearFrame\fR	(ier)
+\fBcfclose\fR	()
+
+\fBcfdisplayIRAF\fR	(fname, band, frame, fbconfig, zscale, ier)
+\fBcfisIRAF\fR	(fname, isiraf)
+\fBcfreadIRAF\fR	(fname, band, pix, nx, ny, bitpix, ier)
+
+\fBcfdisplayFITS\fR	(fname, frame, fbconfig, zscale, ier)
+\fBcfisFITS\fR	(fname, isfits)
+\fBcfreadFITS\fR	(fname, pix, nx, ny, bitpix, ier)
+
+\fBcfcomputeZscale\fR	(pix, nx, ny, bitpix, z1, z2)
+\fBcfzscaleImage\fR	(pix, nx, ny, bitpix, z1, z2)
+
+\fBcfprintPix\fR	(cmd, pix, nx, ny, annotate, ier)
+\fBcfprintPixToFile\fR	(fname, pix, nx, ny, annotate, ier)
+
+\fBcfreadImage\fR	(pix, nx, ny, ier)
+\fBcfreadFrameBuffer\fR	(pix, nx, ny, ier)
+\fBcfreadSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+\fBcfwriteSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+
+\fBcfselectFB\fR	(nx, ny, fb, w, h, nf, reset)
+\fBcfsetFBConfig\fR	(configno)
+\fBcfgetFBConfig\fR	(configno, w, h, nf)
+\fBcflookupFBSize\fR	(configno, w, h, nf)
+
+\fBcfsetZTrans\fR	(ztrans)
+\fBcfsetZScale\fR	(z1, z2)
+\fBcfsetSample\fR	(nsample)
+\fBcfsetSampleLines\fR	(nlines)
+\fBcfsetContrast\fR	(contrast)
+\fBcfsetName\fR	(imname)
+\fBcfsetTitle\fR	(imtitle)
+
+\fBcfgetFrame\fR	(frame)
+\fBcfgetZTrans\fR	(ztrans)
+\fBcfgetZScale\fR	(z1, z2)
+\fBcfgetSample\fR	(nsample)
+\fBcfgetSampleLines\fR	(nlines)
+\fBcfgetContrast\fR	(contrast)
+\fBcfgetName\fR	(imname)
+\fBcfgetTitle\fR	(imtitle)
+
+\fBcfmapFrame\fR	(frame, ier)
+\fBcfmarkPoint\fR	(x, y, number, size, type, color, ier)
+\fBcfmarkPointLabel\fR	(x, y, label, size, type, color, ier)
+\fBcfmarkLine\fR	(xs, ys, xe, ye, color, ier)
+\fBcfmarkBox\fR	(lx, ly, ux, uy, fill, color, ier)
+\fBcfmarkPolygon\fR	(xarray, yarray, npts, fill, color, ier)
+\fBcfmarkPolyline\fR	(xarray, yarray, npts, color, ier)
+\fBcfmarkCircle\fR	(x, y, radius, fill, color, ier)
+\fBcfmarkCircAnnuli\fR	(x, y, radius, nannuli, sep, color, ier)
+\fBcfmarkEllipse\fR	(x, y, xrad, yrad, rotang, fill, color, ier)
+\fBcfmarkEllipAnnuli\fR	(x, y, xrad, yrad, ang, nannuli, sep, color, ier)
+\fBcfmarkText\fR	(x, y, str, size, angle, color, ier)
+\fBcfsetfont\fR		(font)
+\fBcfdeleteMark\fR	(x, y, ier)
+\fBcfclearOverlay\fR	(ier)
+\fBcfredrawOverlay\fR	(ier)
+.TE
+.bp
+.NH
+Fortran Example Tasks
+.LP
+	The examples shown here are for demonstration purposes only.  They
+are based on working example tasks in the CDL source \fIexamples\fR
+subdirectory, see the programs there for the full program listing.
+
+.NH 2
+Display Example
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+\f(CW
+C ========================================================================
+C  FDISPLAY -- Example fortran program showing the use of the Client
+C  Display Library (CDL) Fortran interface for displaying images.
+C ========================================================================
+
+	PROGRAM FDISPLAY
+	character*64   imname
+
+C 	\fIInitialize the CDL package\fP
+	call \fBcfopen\fP (0, ier)
+	if (ier .gt. 0) then
+	    write (*,*) 'open: Error return from CDL'
+	    goto 999
+	endif
+
+	write (*, "('Image Name: ', $)")
+	read (5, *) imname
+	write (*, "('Frame Number: ', $)")
+	read (5, *) iframe
+	write (*, "('Frame buffer configuration number: ', $)")
+	read (5, *) ifb
+
+C	\fIIf we've got a FITS format image, go ahead and display it.\fP
+	call \fBcfisFITS\fP (imname, isfits)
+	if (isfits .gt. 0) then
+	    call \fBcfdisplayFITS\fP (imname, iframe, ifb, 1, ier)
+	else 
+C	    \fIWe've got an IRAF format image, go ahead and display it.\fP
+	    call \fBcfisIRAF\fP (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call \fBcfdisplayIRAF\fP (imname, 1, iframe, ifb, 1, ier)
+	    else 
+C	    	\fIUnrecognized image, punt and exit.\fP
+	        write (*,*) 'Unrecognized image format'
+	    endif
+	endif
+
+C 	\fIClean up and exit.\fP
+999	continue
+	call \fBcfclose\fP (ier)
+	end
+\fR
+.fi
+.ps +2
+.vs +2
+.in -0.5i
+.bp
+.NH 2
+Interactive Graphics Overlay Example
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+\f(CW
+C ==========================================================================
+C  FTVMARK --  Example fortran program showing the use of the Client
+C  Display Library (CDL) Fortran interface for doing graphics overlay. No
+C  checking of the error flag is done here for space considerations.
+C ==========================================================================
+
+	PROGRAM FTVMARK
+	include 	"\fBcdlftn.inc\fP"
+	character*64   	imname
+
+C 	\fIInitialize the CDL package\fP
+	call \fBcfopen\fP (0, ier)
+
+	write (*, "('Image Name: ', $)") 
+	read (5, *) imname
+	write (*, "('Frame Number: ', $)")
+	read (5, *) iframe
+	write (*, "('Frame buffer configuration number: ', $)")
+	read (5, *) ifb
+
+C	\fIIf we've got a FITS format image, go ahead and display it.\fP
+	call \fBcfisFITS\fP (imname, isfits)
+	if (isfits .gt. 0) then
+	    call \fBcfdisplayFITS\fP (imname, iframe, ifb, 1, ier)
+	else 
+C	    \fIWe've got an IRAF format image, go ahead and display it.\fP
+	    call \fBcfisIRAF\fP (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call \fBcfdisplayIRAF\fP (imname, 1, iframe, ifb, 1, ier)
+	    else 
+C	        \fINo valid image given, so map the current display for marking.\fP
+	        call \fBcfmapFrame\fP (iframe)
+	    endif
+	endif
+
+C 	\fINow that we've got an image displayed or mapped, enter a cursor loop to mark the image. \fP
+	call markInteractive ()
+
+C 	\fIClean up and exit\fP
+999	continue
+	call \fBcfclose\fP (ier)
+	end
+
+C   \fIMARKINTERACTIVE -- Subroutine for processing the cursor loop.\fP
+	subroutine markInteractive ()
+	include 	"\fBcdlftn.inc\fP"
+	real		angle, rx, ry, txsize
+	integer		nx, ny, x, y, x2, y2, fill, size, color
+	integer		number, radius, xrad, yrad, nannuli, sep
+	character	key
+	character*64	cmd, str
+
+C  	\fIAllocate a 1024x1024 array for pixels. \fP
+	character	pix(1048576)
+
+C	\fI....Initialize the local parameters to use\fP
+
+C	\fIRead a cursor keystroke telling us what to do.\fP
+10 	call \fBcfreadCursor\fP (0, rx, ry, key, ier)
+
+C	\fIRound the real cursor position to integer pixel positions.\fP
+	    x = nint (rx + 0.5)
+	    y = nint (ry + 0.5)
+
+C	\fICheck the keystroke and take the appropriate action.\fP
+C	    \fIColon Commands\fP
+	    if (key .eq. ':') then
+C		\fIRead a three character command and value field and process the colon command\fP
+		read (*,'(A3, i4)') cmd, ival
+		if (cmd(1:3) .eq. 'ang') then
+		    angle = real (ival)
+		else if (cmd(1:3) .eq. 'col') then
+		    color = ival
+		else if (cmd(1:3) .eq. 'fil') then
+		    fill = ival
+\fI 			:
+			....and so on to set local variables
+			:\fR
+		else if (cmd(1:3) .eq. 'pri') then
+C		    \fIPrint contents of the current frame buffer\fP
+		    call \fBcfreadFrameBuffer\fP (pix, nx, ny, ier)
+		    call \fBcfprintPix\fP ("lpr", pix, nx, ny, 1, ier)
+		else if (cmd(1:3) .eq. 'sta') then
+			\fI....print out the status (value) of variables\fP
+	 	endif
+
+C	    \fIPoint Markers\fP
+	    else if (key .eq. 'p') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_PLUS, color, ier)
+	    else if (key .eq. 'x') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_CROSS, color, ier)
+	    else if (key .eq. '_') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_HBLINE, color, ier)
+	    else if (key .eq. 'o') then
+C		\fIExample of a filled point marker \fP
+		call \fBcfmarkPoint\fP (x, y, 1, size, or(M_CIRCLE,fill), color, ier)
+\fI 			:
+			....and so on to set other types of point markers\fR
+
+C	    \fIOther Markers\fP
+	    else if (key .eq. 'b') then
+		print '("Hit another key to define the box ....")'
+ 		call \fBcfreadCursor\fP (0, rx, ry, key, ier)
+	    	x2 = nint (rx + 0.5)
+	    	y2 = nint (ry + 0.5)
+		call \fBcfmarkBox\fP (x, y, x2, y2, fill, color, ier)
+	    else if (key .eq. 'd') then
+		call \fBcfdeleteMark\fP (x, y, ier)
+	    else if (key .eq. 'e') then
+		call \fBcfmarkEllipse\fP (x, y, xrad, yrad, angle, fill, color, ier)
+            else if (key .eq. 't') then
+                print '("Text string:  ", $)'
+                read (*,'(A64)') str
+                call \fBcfmarkText\fP (x, y, str, txsize, angle, color, ier)
+\fI 			:
+			....and so on to set other types of markers\fR
+
+C	    \fIQuit\fP
+	    else if (key .eq. 'q') then
+		goto 998
+	    endif
+
+C	\fILoop back until we want to quit\fP
+	goto 10
+998	continue
+	end
+\fR
+.fi
+.ps +2
+.vs +2
+.in -0.5i
+.bp
+.NH
+SPP Interface Summary
+.LP
+.in 0.5i
+#include  "\fBcdlspp.h\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+\fBCDS_OPEN\fR	(imtdev, ier)
+\fBCDS_DISPLAYPIX\fR	(pix, nx, ny, bitpix, frame, fbconfig, zscale, ier)
+\fBCDS_READCURSOR\fR	(sample, x, y, key, ier)
+\fBCDS_SETCURSOR\fR	(x, y, wcs, ier)
+\fBCDS_SETWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBCDS_GETWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBCDS_SETFRAME\fR	(frame)
+\fBCDS_CLEARFRAME\fR	(ier)
+\fBCDS_CLOSE\fR	()
+
+\fBCDS_DISPLAYIRAF\fR	(fname, band, frame, fbconfig, zscale, ier)
+\fBCDS_ISIRAF\fR	(fname, isiraf)
+\fBCDS_READIRAF\fR	(fname, band, pix, nx, ny, bitpix, ier)
+
+\fBCDS_DISPLAYFITS\fR	(fname, frame, fbconfig, zscale, ier)
+\fBCDS_ISFITS\fR	(fname, isfits)
+\fBCDS_READFITS\fR	(fname, pix, nx, ny, bitpix, ier)
+
+\fBCDS_COMPUTEZSCALE\fR	(pix, nx, ny, bitpix, z1, z2)
+\fBCDS_ZSCALEIMAGE\fR	(pix, nx, ny, bitpix, z1, z2)
+
+\fBCDS_PRINTPIX\fR	(cmd, pix, nx, ny, annotate, ier)
+\fBCDS_PRINTPIXTOFILE\fR	(fname, pix, nx, ny, annotate, ier)
+
+\fBCDS_READIMAGE\fR	(pix, nx, ny, ier)
+\fBCDS_READFRAMEBUFFER\fR	(pix, nx, ny, ier)
+\fBCDS_READSUBRASTER\fR	(lx, ly, nx, ny, pix, ier)
+\fBCDS_WRITESUBRASTER\fR	(lx, ly, nx, ny, pix, ier)
+
+\fBCDS_SELECTFB\fR	(nx, ny, fb, w, h, nf, reset)
+\fBCDS_SETFBCONFIG\fR	(configno)
+\fBCDS_GETFBCONFIG\fR	(configno, w, h, nf)
+\fBCDS_LOOKUPFBSIZE\fR	(configno, w, h, nf)
+
+\fBCDS_SETZTRANS\fR	(ztrans)
+\fBCDS_SETZSCALE\fR	(z1, z2)
+\fBCDS_SETSAMPLE\fR	(nsample)
+\fBCDS_SETSAMPLELINES\fR	(nlines)
+\fBCDS_SETCONTRAST\fR	(contrast)
+\fBCDS_SETNAME\fR	(imname)
+\fBCDS_SETTITLE\fR	(imtitle)
+
+\fBCDS_GETFRAME\fR	(frame)
+\fBCDS_GETZTRANS\fR	(ztrans)
+\fBCDS_GETZSCALE\fR	(z1, z2)
+\fBCDS_GETSAMPLE\fR	(nsample)
+\fBCDS_GETSAMPLELINES\fR	(nlines)
+\fBCDS_GETCONTRAST\fR	(contrast)
+\fBCDS_GETNAME\fR	(imname)
+\fBCDS_GETTITLE\fR	(imtitle)
+
+\fBCDS_MAPFRAME\fR	(frame, ier)
+\fBCDS_MARKPOINT\fR	(x, y, number, size, type, color, ier)
+\fBCDS_MARKPOINTLABEL\fR	(x, y, label, size, type, color, ier)
+\fBCDS_MARKLINE\fR	(xs, ys, xe, ye, color, ier)
+\fBCDS_MARKBOX\fR	(lx, ly, ux, uy, fill, color, ier)
+\fBCDS_MARKPOLYGON\fR	(xarray, yarray, npts, fill, color, ier)
+\fBCDS_MARKPOLYLINE\fR	(xarray, yarray, npts, color, ier)
+\fBCDS_MARKCIRCLE\fR	(x, y, radius, fill, color, ier)
+\fBCDS_MARKCIRCANNULI\fR	(x, y, radius, nannuli, sep, color, ier)
+\fBCDS_MARKELLIPSE\fR	(x, y, xrad, yrad, rotang, fill, color, ier)
+\fBCDS_MARKELLIPANNULI\fR	(x, y, xrad, yrad, ang, nannuli, sep, color, ier)
+\fBCDS_MARKTEXT\fR	(x, y, str, size, angle, color, ier)
+\fBCDS_SETFONT\fR	(font)
+\fBCDS_DELETEMARK\fR	(x, y, ier)
+\fBCDS_CLEAROVERLAY\fR	(ier)
+\fBCDS_REDRAWOVERLAY\fR	(ier)
+.TE
diff --git a/vendor/x11iraf/cdl/doc/cdlref.ms-V1.6 b/vendor/x11iraf/cdl/doc/cdlref.ms-V1.6
new file mode 100644
index 00000000..a97147be
--- /dev/null
+++ b/vendor/x11iraf/cdl/doc/cdlref.ms-V1.6
@@ -0,0 +1,2512 @@
+.RP
+.de us
+\\$1\l'|0\(ul'
+..
+.TL
+A Reference Guide for the IRAF Client Display Library (CDL)
+.AU
+Michael Fitzpatrick
+.AI
+NOAO/IRAF Group
+.sp 0.5
+February 1997
+.sp 0.5
+\fIRevised March 1998\fR
+
+.AB
+The Client Display Library (CDL) is a host interface for C, Fortran or SPP
+programs allowing them to display images or overlay graphics to display
+servers such as \fIXImtool\fR or \fISAOimage / SAOtng\fR.  High-level
+procedures allow IRAF or FITS images to be displayed simply, other
+routines permit access to all other server functions (e.g. cursor and image
+readback, frame selection, etc).  The library also features a number of
+functions for doing image overlay graphics; supported graphics primitives
+include numerous point shapes, lines, circles, ellipses, polygons, annular
+shapes, and text.
+.AE
+
+.pn 1
+.bp
+.ce
+.ps +3
+\fBContents\fR
+.ps -3
+.sp 2
+1\h'|0.25i'\fBIntroduction\fP\l'|5.6i.'\0\01
+.sp 0.5
+2\h'|0.25i'\fBGetting Started\fP\l'|5.6i.'\0\01
+.sp 0.5
+3\h'|0.25i'\fBServer Connections\fP\l'|5.6i.'\0\02
+.br
+\h'|0.25i'3.1\h'|0.75i'Domain Sockets\l'|5.6i.'\0\02
+.br
+\h'|0.25i'3.2\h'|0.75i'Named FIFO Pipes\l'|5.6i.'\0\03
+.br
+\h'|0.25i'3.3\h'|0.75i'Inet Sockets\l'|5.6i.'\0\03
+.br
+\h'|0.25i'3.4\h'|0.75i'User-Defined Connections\l'|5.6i.'\0\03
+.sp 0.5
+4\h'|0.25i'\fBImage Display\fP\l'|5.6i.'\0\03
+.br
+\h'|0.25i'4.1\h'|0.75i'Overview of the Display Process\l'|5.6i.'\0\03
+.br
+\h'|0.25i'4.2\h'|0.75i'Displaying IRAF Images\l'|5.6i.'\0\04
+.br
+\h'|0.25i'4.3\h'|0.75i'Displaying FITS Images\l'|5.6i.'\0\04
+.br
+\h'|0.25i'4.4\h'|0.75i'Displaying Raw Pixels\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.5\h'|0.75i'Frame Selection\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.6\h'|0.75i'Clearing the Display\l'|5.6i.'\0\05
+.br
+\h'|0.25i'4.7\h'|0.75i'Frame Buffer Selection\l'|5.6i.'\0\05
+.br
+\h'|0.4i'4.7.1\h'|0.95i'Automatic Selection\l'|5.6i.'\0\06
+.br
+\h'|0.4i'4.7.2\h'|0.95i'The Frame Buffer Configuration File\l'|5.6i.'\0\06
+.br
+\h'|0.25i'4.8\h'|0.75i'Image WCS Description\l'|5.6i.'\0\06
+.br
+\h'|0.25i'4.9\h'|0.75i'Image Colormaps\l'|5.6i.'\0\07
+.br
+\h'|0.4i'4.9.1\h'|0.95i'Imtool Color Model\l'|5.6i.'\0\07
+.br
+\h'|0.25i'4.10\h'|0.75i'ZScale Intensity Mapping\l'|5.6i.'\0\08
+.br
+\h'|0.25i'4.11\h'|0.75i'Image Hardcopy\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.12\h'|0.75i'Image Cursor\l'|5.6i.'\0\09
+.br
+\h'|0.4i'4.12.1\h'|0.95i'Cursor Sampling\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.13\h'|0.75i'Image Readout\l'|5.6i.'\0\09
+.br
+\h'|0.25i'4.14\h'|0.75i'Subraster I/O\l'|5.6i.'\0\09
+.sp 0.5
+5\h'|0.25i'\fBGraphics Overlay\fP\l'|5.6i.'\010
+.br
+\h'|0.25i'5.1\h'|0.75i'Marker Coordinates\l'|5.6i.'\010
+.br
+\h'|0.25i'5.2\h'|0.75i'Mapping a Previously Displayed Image\l'|5.6i.'\010
+.br
+\h'|0.25i'5.3\h'|0.75i'Marking a Coordinate File\l'|5.6i.'\010
+.br
+\h'|0.25i'5.4\h'|0.75i'Marker Colors\l'|5.6i.'\010
+.br
+\h'|0.25i'5.5\h'|0.75i'Marker Types\l'|5.6i.'\011
+.br
+\h'|0.4i'5.5.1\h'|0.95i'Point\l'|5.6i.'\011
+.br
+\h'|0.4i'5.5.2\h'|0.95i'Line\l'|5.6i.'\011
+.br
+\h'|0.4i'5.5.3\h'|0.95i'Box\l'|5.6i.'\012
+.br
+\h'|0.4i'5.5.4\h'|0.95i'Circle\l'|5.6i.'\012
+.br
+\h'|0.4i'5.5.5\h'|0.95i'Polyline\l'|5.6i.'\012
+.br
+\h'|0.4i'5.5.6\h'|0.95i'Polygon\l'|5.6i.'\012
+.br
+\h'|0.4i'5.5.7\h'|0.95i'Ellipse\l'|5.6i.'\012
+.br
+\h'|0.4i'5.5.8\h'|0.95i'Circular Annuli\l'|5.6i.'\012
+.br
+\h'|0.4i'5.5.9\h'|0.95i'Elliptical Annuli\l'|5.6i.'\013
+.br
+\h'|0.4i'5.5.10\h'|0.95i'Text\l'|5.6i.'\013
+.br
+\h'|0.25i'5.6\h'|0.75i'Text Fonts\l'|5.6i.'\013
+.br
+\h'|0.4i'5.6.1\h'|0.95i'In-line Font Changes\l'|5.6i.'\013
+.br
+\h'|0.25i'5.7\h'|0.75i'Line Widths and Styles\l'|5.6i.'\014
+.br
+\h'|0.25i'5.8\h'|0.75i'Deleting Markers\l'|5.6i.'\014
+.br
+\h'|0.4i'5.8.1\h'|0.95i'Individual Markers\l'|5.6i.'\014
+.br
+\h'|0.4i'5.8.2\h'|0.95i'The Entire Overlay\l'|5.6i.'\015
+.br
+\h'|0.25i'5.9\h'|0.75i'Redrawing the Overlay\l'|5.6i.'\015
+.sp 0.5
+6\h'|0.25i'\fBANSI C Function Prototypes\fP\l'|5.6i.'\015
+.sp 0.5
+7\h'|0.25i'\fBFortran Language Binding Notes\fP\l'|5.6i.'\015
+.sp 0.5
+8\h'|0.25i'\fBSPP Language Binding Notes\fP\l'|5.6i.'\015
+.sp 0.5
+9\h'|0.25i'\fBIIS Protocol Description\fP\l'|5.6i.'\016
+.sp 0.5
+10\h'|0.25i'\fBVXIMTOOL Proxy/Display Server Usage\fP\l'|5.6i.'\018
+.sp 0.5
+11\h'|0.25i'\fBC Interface Summary\fP\l'|5.6i.'\019
+.sp 0.5
+12\h'|0.25i'\fBC Example Tasks\fP\l'|5.6i.'\021
+.br
+\h'|0.25i'12.1\h'|0.75i'Display Example\l'|5.6i.'\021
+.br
+\h'|0.25i'12.2\h'|0.75i'Interactive Graphics Overlay Example\l'|5.6i.'\024
+.br
+\h'|0.25i'12.3\h'|0.75i'Image Mosaic Example\l'|5.6i.'\028
+.sp 0.5
+13\h'|0.25i'\fBFortran Interface Summary\fP\l'|5.6i.'\030
+.sp 0.5
+14\h'|0.25i'\fBFortran Example Tasks\fP\l'|5.6i.'\032
+.br
+\h'|0.25i'14.1\h'|0.75i'Display Example\l'|5.6i.'\032
+.br
+\h'|0.25i'14.2\h'|0.75i'Interactive Graphics Overlay Example\l'|5.6i.'\033
+.sp 0.5
+15\h'|0.25i'\fBSPP Interface Summary\fP\l'|5.6i.'\035
+.pn 1
+
+.NH
+Introduction
+.LP
+	For more than a decade IRAF has used a \fIdisplay server\fR as the
+primary means for image display.  IRAF client tasks connect to the server
+and send or read data using a modification of the IIS Model 70 protocol,
+originally through named fifo pipes but more recently using unix domain
+or inet sockets.  The advantage to this approach was that IRAF client tasks
+could make use of the image display functionality without duplicating
+the code needed for actually displaying the image.  The longtime disadvantage
+was that the IIS protocol used was arcane and undocumented and therefore 
+largely unavailable to applications outside of the IRAF project.  The
+Client Display Library (CDL) provides a public C and Fortran interface for
+displaying images and overlay graphics that is independent of the underlying
+protocol used.
+.LP
+	Unlike the interface used by IRAF applications, the CDL is meant to
+provide an easy-to-use, fully featured interface for applications  that can
+be easily evolved for future display servers, communications schemes, or
+display functionality.  Indeed, the CDL is independent of IRAF itself (as
+are the display servers) so display tasks can be written for any discipline
+or application.
+.LP
+	While this guide assumes programs are written in C, Fortran programmers
+should find the translation straightforward by referring to the Fortran
+interface summary.  The package source files include example tasks as does
+this guide; users with problems, questions, or bug reports are encouraged to
+contact \fIiraf@noao.edu\fR.  A small code sample demonstrating the problem
+would be very helpful in finding a solution to any reported problems.
+
+.NH 
+Getting Started
+.LP
+	All C programs must include the header file \fB"cdl.h"\fR in order
+to get package definitions for constants such as colors and structure
+definitions used.  The Fortran interface does not \fIrequire\fR anything
+similar, however for fortran compilers which support an \f(CWinclude\fR
+directive a \fBcdlftn.inc\fR file may be used to define symbolic constants
+passed to procedures, this file must be included by each procedure using the
+CDL.  Fortran programs not using this file must pass in the constants 
+explicitly, needed values are found throughout this manual.  C procedures
+which return an integer value will return a positive number to indicate an
+error has occurred and print an error message, otherwise zero is returned.
+.LP
+	The \fBcdl_open()\fR procedure is used to establish a connection
+to the server and initialize the package, it returns a CDL structure pointer
+that is passed to other CDL procedures.  For C programs this means
+a separate pointer may be maintained for each server connection, the Fortran
+interface is limited to only one server connection per process since the
+pointer is maintained internally.  The connection is terminated using the
+\fBcdl_close()\fR procedure.  Between these two calls may be any combination
+of CDL procedure calls for doing image display or overlay graphics.
+.LP
+	For example, the simplest possible program for displaying an IRAF
+image would look something like:
+.sp 0.5
+.nf
+		\f(CW#include "cdl.h"
+
+		main (int argc, char *argv[])
+		{
+		    CDLPtr cdl = cdl_open ((char *)0);
+		    cdl_displayIRAF (cdl, argv[1], 1, 1, 1, 1);
+		    cdl_close (cdl);
+		}\fR
+.fi
+.sp 0.5
+.LP
+This program displays band one of an image named on the command line to the
+server in frame one using the default 512x512 frame buffer, zscaling the
+pixels to 8-bit values automatically. No error checking is performed to verify
+that a connection was established or that the argument is a valid IRAF image.
+Most programs will be more complex than this but it should be clear that
+image display from client applications is a now trivial operation.
+
+.us "Synopsis"
+.sp 0.5
+.nf
+	\f(CW#include "cdl.h"\fR
+
+	\f(CWCDLPtr cdl_open (char *imtdev)\fR
+	\f(CWvoid cdl_close (CDLPtr cdl)\fR
+.fi
+
+.NH
+Server Connections 
+.LP
+	The \fBcdl_open()\fR procedure takes a single argument specifying the 
+type of connection to make to the server, this routine also initializes
+the CDL package.  If this is a NULL pointer the CDL will attempt to first
+connect on a unix domain socket, if that fails the standard IRAF /dev/imt1*
+fifo pipes are tried.  The syntax for the \fIimtdev\fR argument is as follows:
+.sp 0.5
+				\f(CW<domain> : <address>\fR
+.sp 0.5
+.LP
+where <domain> is one of "\fBinet\fR" (internet tcp/ip socket), "\fBunix\fR"
+(unix domain socket) or "\fBfifo\fR" (named pipe).  The form of the address
+depends upon the domain, as illustrated in the examples below.  The address
+field may contain up to two "%d" fields.  If present, the user's UID will be
+substituted (e.g. "unix:/tmp/.IMT%d"). The default connection if no imtdev
+is specified is "unix:/tmp/.IMT%d", failing that a connection is attempted
+on the /dev/imt1[io] named fifo pipes.   
+.NH 2
+Domain Sockets
+.LP
+	Domain sockets are sockets created on the local host.  The connection
+is usually faster than an inet socket and comparable to a fifo.  If the
+socket name is specified with a '%d' field the client can be assured of a 
+unique socket name for each user allowing multiple clients to be run on the
+same host by different users.
+.LP
+.us "Example"
+.sp 0.5
+.nf
+\f(CW
+	/* Connection to a local host using socket domain socket. */
+	if ((cdl = cdl_open ("unix:/tmp/.IMT%d")) == NULL) {
+	     fprintf (stderr, "cannot open domain socket connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+Named FIFO Pipes
+.LP
+	This is the traditional approach, and the only one supported by
+SAOimage (although recent versions contain support for sockets). Any named
+fifo pipe may be used, the syntax for the \fIimtdev\fR string in this case is
+.sp 0.5
+		\fBfifo:\f(CW<input_fifo>\fB:\f(CW<output_fifo>\fR
+.sp 0.5
+.LP
+.us "Example"
+.sp 0.5
+.nf
+	\f(CW/* Connection to a local host using named fifo pipes. */
+	if ((cdl = cdl_open ("fifo:/dev/imt1i:/dev/imt1o")) == NULL) {
+	     fprintf (stderr, "cannot open fifo pipe connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+Inet Sockets
+.LP
+	Inet sockets are connections between hosts via a tcp/ip socket.
+This permits connecting to the server over a remote network connection
+anywhere on the Internet.    
+.LP
+.us "Example"
+.sp 0.5
+.nf
+	\f(CW/* Connection to a local host using socket 5137. */
+	if ((cdl = cdl_open ("inet:5137")) == NULL) {
+	     fprintf (stderr, "cannot open inet socket connection\\n");
+	     exit (1);
+	}
+
+	/* Connection to a remote internet host using socket 5137. */
+	if ((cdl = cdl_open ("inet:5137:foo.bar.edu")) == NULL) {
+	     fprintf (stderr, "cannot open inet socket connection\\n");
+	     exit (1);
+	} \fR
+.fi
+.NH 2
+User-Defined Connections
+.LP
+	Since IRAF V2.10.3 client tasks have been able to use an \fBIMTDEV\fR
+unix environment variable to set the connection type, the syntax of this 
+variable is the same as described above.  If the \fIcdl_open()\fR procedure
+is called with a NULL pointer the IMTDEV environment variable will
+automatically be checked.  To explicitly use this (or any other) variable
+in the client task the \fIcdl_open()\fR procedure may be called as
+e.g.
+.sp 0.5
+.nf
+	\f(CWif ((cdl = cdl_open (getenv("IMTDEV"))) == NULL) {
+	     fprintf (stderr, "cannot open server connection\\n");
+	     exit (1);
+	}\fR
+.fi
+.NH
+Image Display
+.NH 2
+Overview of the Display Process
+.LP
+	Basic image display is done most easily using the high-level
+\fBcdl_displayIRAF()\fR, \fBcdl_displayFITS()\fR and \fBcdl_displayPix()\fR
+procedures.  These routines automatically define an image WCS, clear the
+frame, set the frame buffer and center the image in the display.  For most
+applications these are all that will be needed, but the
+\fBcdl_writeSubRaster()\fR procedure can also be used to display an image.
+For example, to display one image in a mosaic or other cases where
+the task needs low-level access to position the image or write raw pixel
+values.
+.LP
+	In these cases it is the responsibility of the client program to
+prepare the server for display.  The basic steps involved in displaying an
+image include
+.sp 0.5
+.TS
+center;
+lB lB
+- -
+l lI.
+Operation	CDL Procedure
+Selecting the frame	cdl_setFrame()
+Clear the frame	cdl_clearFrame()
+Select the frame buffer configuration	cdl_selectFB()
+Set the frame buffer configuration	cdl_setFBConfig()
+Scale the image pixels to 201 display values	cdl_zscaleImage()
+Define the image WCS	 
+Set the image WCS	cdl_setWCS()
+Compute the raster placement in the frame buffer	 
+Write the pixels to the display	cdl_writeSubRaster()
+.TE
+.sp 0.5
+In cases like a mosaic display obviously clearing the frame will only need
+to be done once and a single WCS for the mosaic should be defined.  For 
+simple display the high-level routines handle all of these steps for you, they
+are included here as checklist of what must be considered when using the CDL
+for low-level display.
+.NH 2
+Displaying IRAF Images
+.LP
+	The \fBcdl_displayIRAF()\fR procedure can be used to display an
+	IRAF OIF format image (i.e. images with a \fI.imh\fR extension) by
+simply passing in the image name.  Pixel files for the image must be
+accessible from the local machine but can be in any directory, the HDR$
+syntax for the imdir is also recognized.  Images may be three dimensional,
+the \fIband\fR argument is used to select the image band to be displayed.
+The \fIframe\fR and \fIfbconfig\fR arguments select the frame and frame
+buffer size respectively, the special symbolic value \fBFB_AUTO\fR may be
+used for the \fIfbconfig\fR argument to have the procedure automatically
+select the frame buffer most appropriate for the image size.
+If the \fIzscale\fR flag is greater than zero
+the image will automatically be converted to 8-bit values using the zscale
+mapping algorithm.  The function returns a positive value if the image
+cannot be accessed or displayed for any reason, an error message will be
+printed.
+.LP
+	The \fIcdl_isIRAF()\fR procedure returns a positive value if the
+filename argument is recognized as an IRAF image, it does not check whether
+the pixel file can be successfully accessed.  For simply reading the pixels
+from an IRAF image the \fBcdl_readIRAF()\fR procedure may be used.  The
+function returns a zero value and sets the output pixel array, image
+dimensions and pixel size if successful, otherwise the function returns a
+positive value.  Note that
+the output pixel values may need to be scaled before they can be displayed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayIRAF (CDLPtr cdl, char *fname, int band,
+	    int frame, int fbconfig, int zscale)\fR
+	\f(CWint cdl_isIRAF (char *fname)\fR
+	\f(CWint cdl_readIRAF (char *fname, int band, uchar **pix,
+	    int *nx, int *ny, int *bitpix, char *title)\fR
+.fi
+.NH 2
+Displaying FITS Images
+.LP
+	The \fBcdl_displayFITS()\fR procedure can be used to display a
+\fIsimple\fR FITS image by name.  A "simple" FITS file is assumed to be
+one containing a single image and having no extensions.  Other types of
+FITS files may of course be displayed but the client will have to use other
+means to import the pixels.  FITS image extensions may be supported in a future
+release of the CDL.  The \fIframe\fR and \fIfbconfig\fR
+arguments select the frame and frame buffer size respectively, 
+the special symbolic value \fBFB_AUTO\fR may be
+used for the \fIfbconfig\fR argument to have the procedure automatically
+select the frame buffer most appropriate for the image size.
+If the
+\fIzscale\fR flag is greater than zero the image will automatically be
+converted to 8-bit values using the zscale mapping algorithm.  The function
+returns a positive value if the image cannot be accessed or displayed for
+any reason, an error message will be printed.
+.LP
+	The \fIcdl_isFITS()\fR procedure returns a positive value if the
+filename argument is recognized as a simple FITS image.  For simply reading
+the image pixels the \fBcdl_readFITS()\fR procedure may be used.  The
+output pixel array, image dimensions and pixel size are returned if
+successful otherwise the function returns a positive value.  Note that
+the returned pixel values may need to be scaled before they can be displayed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayFITS (CDLPtr cdl, char *fname, int frame,
+	    int fbconfig, int zscale)\fR
+	\f(CWint cdl_isFITS (char *fname)\fR
+	\f(CWint cdl_readFITS (char *fname, uchar **pix, int *nx, int *ny,
+	    int *bitpix, char *title)\fR
+.fi
+.NH 2
+Displaying Raw Pixels
+.LP
+	The \fBcdl_displayPix()\fR procedure can be used to display an
+arbitrary array of pixels of any size.  The \fInx\fR and \fIny\fR arguments
+are the raster dimensions, and \fIbitpix\fR is the pixel size and has the
+same meaning as the FITS BITPIX keyword.  The \fIframe\fR and \fIfbconfig\fR
+arguments select the frame and frame buffer size respectively, 
+the special symbolic value \fBFB_AUTO\fR may be
+used for the \fIfbconfig\fR argument to have the procedure automatically
+select the frame buffer most appropriate for the image size.
+If the
+\fIzscale\fR flag is greater than zero the image will automatically be
+converted to 8-bit values using the zscale mapping algorithm.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_displayPix (CDLPtr cdl, uchar *pix, int nx, int ny,
+	    int bitpix, int frame, int fbconfig, int zscale)\fR
+.fi
+.NH 2
+Frame Selection
+.LP
+	Frame selection is normally done as an argument to one of the display
+procedures, however frames may be explicitly selected using the
+\fBcdl_setFrame()\fR procedure.  This allows client programs to essentially
+"blink" frames independently, as long as the server supports multiple frames.
+The \fBcdl_getFrame()\fR procedure may be used to get the current frame 
+set in the server.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFrame (CDLPtr cdl, int frame)\fR
+	\f(CWvoid cdl_getFrame (CDLPtr cdl, int *frame)\fR
+.fi
+.NH 2
+Clearing the Display
+.LP
+	The current display frame may be explicitly cleared using the
+\fBcdl_clearFrame()\fR procedure.  The frame is also cleared prior to 
+displaying new images by the procedures \fBcdl_displayPix()\fR,
+\fBcdl_displayFITS()\fR, and \fBcdl_displayIRAF()\fR.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_clearFrame (CDLPtr cdl)\fR
+.fi
+.NH 2
+Frame Buffer Selection
+.LP
+	The default frame buffer used is 512x512, other sizes may be 
+selected using the \fBcdl_setFBConfig()\fR procedure.  To set the frame
+buffer size the client passes the frame buffer number as defined in 
+the frame buffer configuration file (see below) while setting the image
+WCS.  It is important to note that the frame buffer isn't actually changed
+in the server
+until a subsequent \fBcdl_setWCS()\fR call, either directly or through
+some other procedure which sets the WCS (e.g. one of the display procedures).
+.LP
+	To get the size of the currently defined frame buffer the user
+may call the \fBcdl_getFBConfig()\fR procedure.  This returns not only
+the current configuration number, but the size as well.  To get the size
+and any arbitrary configuration without actually setting it, the
+\fBcdl_lookupFBSize()\fR procedure may be used.  Any configuration not actually
+defined in the frame buffer configuration file is returned as the default
+512x512 size.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFBConfig (CDLPtr cdl, int configno)\fR
+	\f(CWvoid cdl_getFBConfig (CDLPtr cdl, int *configno, int *width,
+	    int *height, int *nframes)\fR
+	\f(CWvoid cdl_lookupFBSize (CDLPtr cdl, int configno, int *width,
+	    int *height, int *nframes)\fR
+.fi
+.NH 3
+Automatic Selection
+.LP
+	The \fBcdl_selectFB()\fR procedure may be used to select the most
+appropriate frame buffer to use for a given image size.  If possible a frame
+buffer the same size as the image will be used, otherwise one that is
+larger will be chosen.  Rather than simply selecting the first configuration 
+larger than the image, the procedure searches the entire configuration file
+selecting the one with the least empty space in both dimensions.  If the 
+\fIreset\fR flag is non-zero this frame is set automatically by the 
+procedure, otherwise the selected dimension is simply returned to the 
+calling program.  In either case the new frame buffer will not take effect
+until a new WCS is defined for the frame.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_selectFB (CDLPtr cdl, int nx, int ny, int *fb,
+		int *w, int *h, int *nf, int reset)
+.
+.NH 3
+The Frame Buffer Configuration File
+.LP
+	The size of the frame buffer is not passed directly to the server
+since this is not part of the communications protocol used.  Instead, the
+frame buffer number is sent as part of the WCS header packet.  So that 
+both the server and client can know that a particular frame buffer number
+corresponds to a specific size, a \fIframe buffer configuration file\fR 
+is used which both the client and server read.
+.LP
+	The default configuration file is /usr/local/lib/imtoolrc, this can
+be overridden by defining an \fBIMTOOLRC\fR environment variable naming
+the file to be used, or by creating a .imtoolrc file in your home directory.
+Since the server must also read the same file, this must be done before
+starting both the client and server applications.
+.LP
+The format of the frame buffer configuration file is
+.sp 0.5
+	\fIconfigno nframes width height [extra fields]\fP
+.sp 0.5
+e.g.
+.sp 0.5
+          1  2  512  512
+          2  2  800  800
+          3  1 1024 1024          # comment
+          :  :   :    :
+
+At most 128 frame buffer sizes may be defined, each configuration may define
+up to 4 frames, configuration numbers need not be sequential but should be 
+in ascending order.
+.NH 2
+Image WCS Description
+.LP
+	The image WCS is defined using the \fBcdl_setWCS()\fR procedure.  The
+WCS defines a mapping between any linear coordinate system and the image
+pixels, for our purposes we will discuss how the WCS is used to map the frame
+buffer pixels to image coordinates.  It is passed to the server in a string
+of the form:
+.sp 0.5
+              Image_Name_String\\n a b c d tx ty z1 z2 zt
+.sp 0.2
+where:
+.sp 0.2
+              X' = a*X + c*Y + tx
+              Y' = b*X + d*Y + ty
+
+The terms \fIa, b, c\fR, and \fId\fR define a rotation of the WCS wrt the pixel
+coordinates, the \fItx\fR and \fIty\fR values are translation terms.  The
+remaining three values define the intensity mapping of the display pixels;
+\fIz1\fR is the minimum pixel value used in the transformation, \fIz2\fR is
+the maximum value, and \fIzt\fR defines the type of transformation used (0 for
+none, 1 for linear, 2 for log10).  
+.LP
+	The WCS may be set explicitly by the calling program or a default
+appropriate for the image will be set automatically by the high-level
+display procedures, otherwise a WCS for the
+frame buffer is defined (i.e. returned coordinates are frame buffer coords).
+As an example of how the WCS is defined, the default WCS for an image
+IMX x IMY pixels in a frame buffer FBX x FBY pixels is defined as
+.sp 0.5
+.nf
+\f(CW        a  =  1.0;                         /* no rotation */
+        b  =  0.0;
+        c  =  0.0;
+        d  = -1.0;
+        tx = (IMX / 2) - (FBX / 2) + 1;    /* center in FB */
+        ty = (FBY / 2) + (IMY / 2);
+        z1 = z1;                           /* zscale values */
+        z2 = z2;
+        zt = 1;\fR
+.fi
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_setWCS (CDLPtr cdl, char *name, char *title,
+	    float a, float b, float c, float d, float tx, float ty,
+	    float z1, float z2, int zt)\fR
+	\f(CWint cdl_getWCS (CDLPtr cdl, char *name, char *title,
+	    float *a, float *b, float *c, float *d, float *tx, float *ty,
+	    float *z1, float *z2, int *zt)\fR
+.fi
+.NH 2
+Image Colormaps
+.LP
+	The IIS protocol used does not permit the downloading of user-defined
+colormaps, all images are loaded as raw grayscale values according to the
+XImtool colormap model used by currently supported servers.  All images
+containing private colormaps or more than the 201 grayscale values defined
+by the Imtool colormap model must either convert the image to 8-bit
+grayscale values by calling the CDL zscale procedures (\fBcdl_computeZscale()\fR
+and \fBcdl_zscaleImage()\fR) or scale the images in client code with 
+user LUTs.  The CDL zscale procedures scale image to 201 grayscale values
+so that they are displayed to the full 8-bit range, user LUT
+transformations or user code for converting to grayscale from a private
+colormap procedures should do the same.
+.NH 3
+Imtool Color Model
+.LP
+	The IMTOOL color model defines at most 201 grayscale values for use in 
+displaying the image, a set of 16 static colors are also defined for overlay
+graphics.  Pixel values sent to the server should be already scaled to this 
+model, i.e. the image pixels should be scaled to the range 1-200, values 
+above this will either represent the overlay colors or will wrap around to
+8-bit values.  The CDL zscale procedures will automatically scale
+arbitrary pixel values to use this color model, the overlay procedures
+assume color values are defined for the static color range 201-217 but any
+8-bit value may be used.
+.LP
+	A summary of the color model values is included below:
+.TS
+center;
+lB lB cB cB lB lB
+l l c c l l.
+Color	Description		Color	Description
+0	Background		208	Cyan
+1 - 200	Image data		209	Magenta
+201	Cursor (white)		210	Coral
+202	Background (black)		211	Maroon
+203	White		212	Orange
+204	Red		213	Khaki
+205	Green		214	Orchid
+206	Blue		215	Turquoise
+207	Yellow		216	Violet
+217	Wheat		218-255	undefined
+.TE
+.NH 2
+ZScale Intensity Mapping
+.LP
+	Since most display servers are only capable of displaying 8-bit pixel
+values,  images with more than 8-bits per pixel must be scaled prior to
+display.  For linear transformations this is typically done using a simple
+conversion of the image min/max values to the 256 grayscale values, however
+this doesn't produce very good results when most pixel values are near one
+of the extremes (usually the image min for astronomical images).  To solve
+this IRAF uses a \fIzscale\fR mapping algorithm where a sampling grid is used
+to approximate the image min/max values rather than computing it directly,
+a line is then fit to these sample pixels to determine the optimal
+transformation to the display values.  This is not only more efficient but
+maps the most common pixel values to the display range producing a better image.
+.LP
+	The CDL has several routines for doing the same transformation: the
+\fIcdl_computeZscale()\fR procedure is used to compute the optimal \fIz1\fR
+and \fIz2\fR
+values (the min/max used for the zscale transform) for an image of any pixel
+size.  The \fIbitpix\fR argument is the number of bits-per-pixel for the input
+array and has the same meaning as for the FITS \fIBITPIX\fR keyword. To then
+transform the image using these values (or user-defined values) the
+\fIcdl_zscaleImage()\fR procedure is used.  The input pixels are modified by
+this procedure but the array is not reallocated to the smaller size needed by
+an 8-bit array.  The \fBcdl_setSample()\fR and \fBcdl_setSampleLines()\fR
+procedures can be used to change the sampling grid and number of sample
+points (the default is 600 points on 5 lines).  The \fBcdl_setContrast()\fR
+procedure can be used to change the default contrast adjustment to the slope
+used in the transformation (the default is 0.25).  If a value of zero is
+given then the minimum and maximum of the intensity sample is used as the
+z1/z2 value.
+.LP
+	Each of the CDL display procedures has a \fIzscale\fR flag to
+automatically scale the pixels prior to display.  Applications wishing to 
+set their own z1/z2 values will need to call the zscale procedures and
+disable this flag.  By default cdl_zscaleImage() will use a linear transform,
+the \fBcdl_setZTrans()\fR procedure may be used to change this.  Acceptable
+values are \fBCDL_UNITARY\fR (zero) for a unitary transform, \fBCDL_LINEAR\fR
+(one) for a linear transform, or \fBCDL_LOG\fR (two) for a log10 transform.
+
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_computeZscale (CDLPtr cdl, uchar *pix, int nx,
+	    int ny, int bitpix, float *z1, float *z2)\fR
+	\f(CWvoid cdl_zscaleImage (CDLPtr cdl, uchar **pix, int nx,
+	    int ny, int bitpix, float z1, float z2)\fR
+
+	\f(CWvoid cdl_setZTrans (CDLPtr cdl, int ztrans)\fR
+	\f(CWvoid cdl_getZTrans (CDLPtr cdl, int *ztrans)\fR
+	\f(CWvoid cdl_setZScale (CDLPtr cdl, float z1, float z2)\fR
+	\f(CWvoid cdl_getZScale (CDLPtr cdl, float *z1, float *z2)\fR
+
+	\f(CWvoid cdl_setSample (CDLPtr cdl, int nsample)\fR
+	\f(CWvoid cdl_setSampleLines (CDLPtr cdl, int nlines)\fR
+	\f(CWvoid cdl_setContrast (CDLPtr cdl, float contrast)\fR
+	\f(CWvoid cdl_getSample (CDLPtr cdl, int *nsample)\fR
+	\f(CWvoid cdl_getSampleLines (CDLPtr cdl, int *nlines)\fR
+	\f(CWvoid cdl_getContrast (CDLPtr cdl, float *contrast)\fR
+
+.fi
+.NH 2
+Image Hardcopy 
+.LP
+	While most servers include some hardcopy capability of their own the 
+CDL provides two procedures for creating hardcopy images from the client
+(e.g. for a batch processing application).  The client will typically read
+back the entire image, frame buffer, of just a subraster and pass those
+pixels to the print procedure.  Images will be written as Pseudocolor
+Postscript (to preserve the overlay marker colors) and may be disposed to
+a file using the \fBcdl_printPixToFile()\fR procedure or to any command string
+accepting input from \fIstdin\fR (typically just an 'lpr' command) by using
+the \fBcdl_printPix()\fR procedure.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_printPix (CDLPtr cdl, char *cmd, uchar *pix, int nx,
+	    int ny, int annotate)\fR
+	\f(CWint cdl_printPixToFile (CDLPtr cdl, char *fname, uchar *pix,
+	    int nx, int ny, int annotate)\fR
+.fi
+.NH 2
+Image Cursor
+.LP
+	The image cursor is read using the \fBcdl_readCursor()\fR procedure.
+The returned value is the cursor \fI(x,y)\fR position as floating point value
+in terms of the currently define image WCS.  Note that this position must
+be converted to integer if it is to be used in one of the marker procedures.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_readCursor (CDLPtr cdl, int sample, float *x,
+	    float *y, int *wcs, char *key)\fR
+.fi
+
+The \fIwcs\fR argument is defined as 
+
+.nf
+        wcs = frame * 100 + wcs_number
+.fi
+
+(where wcs_number=0 for frame buffer coords and 1 for image coords).  So,
+you can get the frame as simply
+
+.nf
+        frame = (int) (wcs / 100)
+.fi
+
+.NH 3
+Cursor Sampling
+.LP
+	If the cdl_readCursor() \fIsample\fR flag is non-zero the \fIlogical
+image cursor\fR position is returned immediately, otherwise the display server
+will wait for a keystroke before returning the cursor position.  The logical
+image cursor is the last value set by a \fIcdl_setCursor()\fR call or the last
+value returned by a \fIcdl_readCursor()\fR call.  When sampling the cursor 
+position the keystroke value is undefined.
+.NH 2
+Image Readout
+.LP
+	The CDL maintains an internal knowledge of where an image has been
+positioned if it was displayed using one of the \fIcdl_display*\fR procedures.
+The \fBcdl_readImage()\fR procedure may be used to read back the entire image
+pixels from the server ignoring the region of the frame buffer outside of
+the image, the \fBcdl_readFrameBuffer()\fR procedure will read back the 
+contents of the entire frame buffer.  The dimensions of the array are returned
+in the \fInx\fR and \fIny\fR arguments.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_readImage (CDLPtr cdl, uchar **pix, int *nx,
+	    int *ny)\R
+	\f(CWint cdl_readFrameBuffer (CDLPtr cdl, uchar **pix,
+	    int *nx, int *ny)\R
+.fi
+.NH 2
+Subraster I/O
+.LP
+	The \fBcdl_writeSubRaster()\fR procedure is used to write an arbitrary
+raster to any location in the display.  Similarly the
+\fBcdl_readSubRaster()\fR procedure is used to read back an arbitrary raster.
+When an image has previously been displayed the subraster position is given
+in image coordinates (e.g. when writing a subregion of edited pixels),
+otherwise the position is in frame buffer coordinates (e.g. to display
+multiple images per frame you should use the cdl_writeSubRaster() call).
+See the section on \fIMarker Coordinates\fR for further explanation of the
+coordinate systems used.  
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_writeSubRaster (CDLPtr cdl, int lx, int ly, int nx,
+	    int ny, uchar *pix)\fR
+	\f(CWint cdl_readSubRaster (CDLPtr cdl, int lx, int ly, int nx,
+	    int ny, uchar **pix)\fR
+.fi
+.NH
+Graphics Overlay
+.NH 2
+Marker Coordinates
+.LP
+	All marker positions are assumed to be image pixel coordinates, 
+although there is no requirement that the position be on the image itself.
+When an image WCS is defined (using the CDL display procedures or explicitly)
+the origin of the coordinates used shifts from the frame buffer lower-left
+to the lower-left of the image as displayed in the frame.   Negative
+positions are allowed and will either refer to empty pixels if the frame
+buffer is larger than the image, or pixels outside the frame buffer
+boundaries.  Raster I/O requests will be clipped to the frame buffer
+endpoints, a request completely outside the frame buffer is an error.
+.NH 2
+Mapping a Previously Displayed Image
+.LP
+	Ideally any application wishing to draw markers on an image will have
+also displayed that image, however the \fBcdl_mapFrame()\fR procedure may
+be used to map the requested frame for marker overlay.  It does this by
+reading the WCS defined for that frame and assumes an image has been
+displayed and centered in the frame buffer, then resets the internal CDL
+image position.  If no image has been displayed the frame buffer is mapped
+directly.  This can be used for example to map an empty frame for displaying
+just the markers without an image, or for mapping another frame's WCS for
+use on the current display.  The frame is not changed by the procedure call
+however the current WCS \fIis\fR changed.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_mapFrame (CDLPtr cdl, int frame)\fR
+.fi
+.NH 2
+Marking a Coordinate File
+.LP
+	Since a common function for programs will be to mark a list of
+coordinates, the high-level \fBcdl_markCoordsFile()\fR procedure is
+provided to make this easier.  The input parameters include a filename
+expected to contain a set of (x,y) points (real or integer), and arguments
+specifying the point type, size and color to draw.  If the \fIlabel\fR 
+argument is positive each marker point will be labeled with it's relative
+number in the file.  The size, type and color arguments all have the same
+meaning as for the \fBcdl_markPoint()\fR procedure described below.
+
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCoordsFile (CDLPtr cdl, char *fname, int type,
+	    int size, int color, int label)\fR
+.fi
+.NH 2
+Marker Colors
+.LP
+	Markers may be drawn using any 8-bit value, in order to use the 
+static overlay colors the color must be in the range 201-217 (see above for
+notes on the XImtool color model).  The "\fIcdl.h\fR" include file
+for C programs, the "\fIcdlftn.inc\fR" include for fortran programs,
+or the "\fIcdlspp.h\fR" include for SPP programs, defines the following
+symbolic constants for each of the static overlay colors:
+.sp 0.5
+.TS
+center;
+lB l c c lB l.
+C_BLACK	202			C_CORAL	210
+C_WHITE	203			C_MAROON	211
+C_RED	204			C_ORANGE	212
+C_GREEN	205			C_KHAKI	213
+C_BLUE	206			C_ORCHID	214
+C_YELLOW	207			C_TURQUOISE	215
+C_CYAN	208			C_VIOLET	216
+C_MAGENTA	209			C_WHEAT	217
+.TE
+.NH 2
+Marker Types
+.LP
+	Currently supported marker types include: \fI
+.TS
+center;
+l l l l l.
+Point	Line	Box	Polyline	Polygon
+Circle	Circular Annuli	Ellipse	Elliptical Annuli	Text		
+.TE
+.LP
+	\fRThe "\fIcdl.h\fR" include file for C programs, the
+"\fIcdlftn.inc\fR" include for fortran programs, or the "\fIcdlspp.h\fR"
+include file SPP programs, defines the following symbolic constants for
+each of the defined \fIPoint\fR marker types:
+.TS
+center;
+lB r c c lB r.
+M_FILL	1			M_CIRCLE	64
+M_POINT	2			M_STAR	128
+M_BOX	4			M_HLINE	256
+M_PLUS	8			M_VLINE	512
+M_CROSS	16			M_HBLINE	1024
+M_DIAMOND	32			M_VBLINE	2048
+.TE
+.LP
+	Point markers are drawn using the \fBcdl_markPoint()\fR procedure,
+point types may be logically \fIOR\fR'd to create composite markers, closed
+shapes such as a circles, diamonds, or squares may be \fIOR\fR'd with the
+M_FILL flag to flood-fill the point with the current overlay color.
+.NH 3
+Point
+.LP
+	The \fBcdl_markPoint()\fR procedure is used to mark a specific point
+on the image using one of the marker types listed above.  The marker is 
+centered at the coordinates specified by the \fIx\fR and \fIy\fR arguments,
+\fItype\fR is an integer flag indicating what kind of marker to draw and 
+may be a composite type by logically ORing two or more marker types.
+\fISize\fR is the width and height of the marker measured in pixel unxits, 
+and \fIcolor\fR is the color used to draw the marker.  If the \fInumber\fR
+argument is greater than zero that number will be drawn next to the point
+as a label, creating text labels for point markers can be done using the
+\fIcdl_markPointLabel\fR procedure.
+.LP
+	Most marker names are fairly obvious but several are worth special
+mention:  The M_DIAMOND, M_CIRCLE and M_BOX marker types may be logically
+\fIOR\fRed with the M_FILL flag to produce a filled marker type.  Unless
+\fIOR\fRd with the M_POINT flag all point markers will leave the center
+pixel unchanged.  The M_HLINE and M_VLINE markers are most useful in
+astronomical applications to mark an individual star, they are horizontal
+and vertical lines respectively with a gap in the middle third of the marker
+(the M_HBLINE and M_VBLINE are identical but with a width of 3 pixels).
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPoint (CDLPtr cdl, int x, int y, int number,
+	    int size, int type, int color)\fR
+	\f(CWint cdl_markPointLabel (CDLPtr cdl, int x, int y, char *label
+	    int size, int type, int color)\fR
+.fi
+.NH 3
+Line
+.LP
+	The \fBcdl_markLine()\fR procedure is used to draw a line of the
+specified color between points (\fIxs,ys\fR) and (\fIxe,ye\fR).
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markLine (CDLPtr cdl, int xs, int ys, int xe, int ye,
+	    int color)\fR
+.fi
+.NH 3
+Box
+.LP
+	The \fBcdl_markBox()\fR procedure is used to draw a box of the
+specified color with endpoints specified by (\fIlx,ly\fR) and (\fIux,uy\fR).
+If the \fIfill\fR flag is set the box will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markBox (CDLPtr cdl, int lx, int ly, int ux, int uy,
+	    int fill, int color)\fR
+.fi
+.NH 3
+Circle
+.LP
+	The \fBcdl_markCircle()\fR procedure is used to draw a circle of the
+specified color with a center at (\fIx,y\fR) and radius \fIradius\fR.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCircle (CDLPtr cdl, int x, int y, int radius,
+	    int fill, int color)\fR
+.fi
+.NH 3
+Polyline
+.LP
+	The \fBcdl_markPolyline()\fR procedure is used to draw a line
+connecting the \fInpts\fR points specified by the \fIxpts\fR and
+\fIypts\fR array in the desired \fIcolor\fR.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPolyline (CDLPtr cdl, int *xpts, int *ypts,
+	    int npts, int color)\fR
+.fi
+.NH 3
+Polygon
+.LP
+	The \fBcdl_markPolygon()\fR procedure is used to draw a closed
+polygon consisting of \fInpts\fR vertices specified by the \fIxpts\fR and
+\fIypts\fR array in the desired \fIcolor\fR.  The last point in the array
+will automatically be connected to the first point by the procedure.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markPolygon (CDLPtr cdl, int *xpts, int *ypts,
+	    int npts, int fill, int color)\fR
+.fi
+.NH 3
+Ellipse
+.LP
+	The \fBcdl_markEllipse()\fR procedure is used to draw an ellipse of the
+specified color with a center at (\fIx,y\fR) and semimajor-axis \fIxrad\fR
+and semiminor-axis \fIyrad\fR pixels long.  A rotation angle for the ellipse
+may be specified by passing a non-zero \fIangle\fR argument, the angle is
+measured in degrees from the positive x-axis.
+If the \fIfill\fR flag is set the circle will be filled with the marker color.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markEllipse (CDLPtr cdl, int x, int y, int xrad,
+	    int yrad, float ang, int fill, int color)\fR
+.fi
+.NH 3
+Circular Annuli
+.LP
+	The \fBcdl_markCircAnnuli()\fR procedure is used to draw
+\fInannuli\fR circles separated by \fIsep\fR pixels each.  The circle is
+centered at (\fIx,y\fR) with an initial radius of \fIradius\fR pixels.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markCircAnnuli (CDLPtr cdl, int x, int y, int radius,
+	    int nannuli, int sep, int color)\fR
+.fi
+.NH 3
+Elliptical Annuli
+.LP
+	The \fBcdl_markEllipAnnuli()\fR procedure is used to draw
+\fInannuli\fR ellipses separated by \fIsep\fR pixels each.  The ellipse is
+centered at (\fIx,y\fR) with an initial semimajor and semiminor axis 
+specified by the \fIxrad\fR and \fIyrad\fR arguments.  Each ellipse will
+be optionally rotate by an \fIangle\fR degrees as measured from the positive
+x-axis.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markEllipAnnuli (CDLPtr cdl, x, y, xrad, yrad, ang,
+	    int nannuli, int sep, int color)\fR
+.fi
+.NH 3
+Text
+.LP
+	The \fBcdl_markText()\fR procedure is used to draw a text string
+specified by \fIstr\fR argument with an initial position at (\fIx,y\fR)
+and optionally rotated by \fIangle\fR degrees as measured from the positive
+x-axis.  The default \fIsize\fR is 1.0 and is approximately a 6x13 font,
+the font size may be scaled by any fractional amount.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_markText (CDLPtr cdl, int x, int y, char *str,
+	    float size, float angle, int color)\fR
+.fi
+.NH 2
+Text Fonts
+.LP
+	The \fBcdl_setFont()\fR procedure is used to choose between one
+of four available fonts as the text marker default: Roman, Greek, Futura,
+Bold and Times respectively.  By default the Roman font will be used. 
+The width of the lines used to draw the text may also be set. 
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setFont (CDLPtr cdl, int font)\fR
+	\f(CWvoid cdl_setTextWidth (CDLPtr cdl, int width)\fR
+.fi
+.sp 0.5
+A complete listing of the Greek character mappings can be found in the
+file 'greek.ps' in the 'doc' subdirectory of the CDL distribution.
+	The \fIRoman\fR font is the font implemented in the original version
+of the CDL and works well for most applications.  Both the \fIGreek\fR and
+\fITimes\fR fonts are hi-resolution fonts which work best for larger frame
+buffers but can produce publication quality text.  The \fIFutura\fR font
+is a simpler font which can produce better results than the default on small
+size frame buffers.  A \fIBold\fR font automatically increases the text line
+width by one pixel over the current setting and may be used with any font.
+.NH 3
+In-Line Font Changes
+.LP
+	Text markers are drawn using the font selected with
+the \fIcdl_setFont()\fR
+routine, however fonts may be change within a string itself (e.g. to set
+a Greek character) using a \\f escape sequence.  The escape is followed 
+by the character 'R' to set a Roman font, 'G' for Greek, 'F' for
+futura, 'B' for bold 
+and 'T' for Times.  Any number of escapes are permitted within a string,
+the font change will remain in effect until it is changed, or the end of 
+string at which point any subsequent strings will again be drawn with the
+default font.  Additionally a 'P' in the escape sequence will change the
+font to the one previously used, whatever that may be.
+.LP
+	The CDL also supports a sub/superscripting of text which can only
+be done with the font escapes.  In this case the escape character followed by
+a 'U' produces a superscript and a 'D' produces a subscript.  The changes may
+be nested permitting several levels of sub/superscripts,  these escapes may
+also be used in conjunction with a font change to cause the sub/superscript
+to be drawn with a different font.  A superscript escape will remain in
+effect until the end of the string or a \\fD escape is seen.  Similarly a
+subscript remains in effect until the end of the string of a \\fU escape.
+Sub/superscripted text is drawn using a smaller font size, there is presently
+no way to specify a different size for the sub/superscripted text.
+.TS
+center;
+cb s
+l l.
+Summary of Font Escapes
+.sp 0.5
+\\\\fR	change to Roman font
+\\\\fG	change to Greek font
+\\\\fF	change to Futura font
+\\\\fT	change to Times font
+\\\\fB	change to bold font
+\\\\fP	change to previous font
+\\\\fU	begin relative superscripted text
+\\\\fD	begin relative subscripted text
+.TE
+.NH 2
+Line Widths and Styles
+.LP
+	The \fBcdl_setLineWidth()\fR procedure can be used to set the line
+width used to draw polygon or polyline markers, point markers will not
+be affected.  The \fBcdl_setLineStyle()\fR procedure is used to set a line
+style other than solid.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWvoid cdl_setLineWidth (CDLPtr cdl, int width)\fR
+	\f(CWvoid cdl_setLineStyle (CDLPtr cdl, int style)\fR
+.fi
+.LP
+	\fRThe "\fIcdl.h\fR" include file for C programs, the
+"\fIcdlftn.inc\fR" include for fortran programs, or the "\fIcdlspp.h\fR"
+include file SPP programs, defines the following symbolic constants for
+each of the defined line styles:
+.TS
+center;
+lB r c c lB r.
+L_SOLID	0			L_DASHED	1
+L_DOTTED	2			L_DOTDASH	3
+L_HOLLOW	4			L_SHADOW	5
+.TE
+.LP
+	The \fIhollow\fR line style is drawn with a linewidth of five pixels,
+two pixels of color, a black line, and two pixels of color.  It is best 
+used when the marker will traverse extreme changes in brightness, due to the
+thickness of the line it may work best with larger frame buffers.  The 
+\fIshadow\fR linestyle is drawn as two pixels of color and two pixels of black
+and should be used for similar brightness variations, however it effectively
+shows up as a line only two pixels wide and may be preferred for medium or
+smaller frame buffers.
+.LP
+	The three dashed linestyles are drawn using "gap" spacings of 5
+pixels in between line segments.  Whether or not these gaps are resolved 
+depends on the size of the frame buffer being used and the magnification
+used in the display server.  By default they should resolve completely 
+using frame buffers up to 1024x1024 pixels, or magnification factors
+displaying 1024x1024 pixels.  If larger sizes are needed the image should
+be subsampled prior to display to maintain the marker resolution needed 
+for these linestyles.
+
+.NH 2
+Deleting Markers
+.LP
+	When markers are drawn the underlying subraster is first saved to
+an internal structure, erasure is done by simply redisplaying the saved
+raster.  Problems can arise however when markers overlap;  when deleting a
+marker that is \fIunder\fR another marker the original pixels can overwrite
+the pixels of the marker on top.  This is an unfortunate side effect of the
+simple scheme used in this version of the package, users can call the
+\fBcdl_redrawOverlay()\fR procedure to help clean up any artifacts left
+behind.
+.NH 3
+Individual Markers
+.LP
+	The \fBcdl_deleteMark()\fR procedure is used to delete a single
+marker from the display().  The (\fIx,y\fR) argument is either the center
+position of the marker if that is know by the application, more typically
+it will be an approximate position.  In the latter case the marker whose
+center is closest to this position will be deleted.  For markers with no
+defined center  the distance used to decide if the marker should be
+deleted is the distance from the argument position to the edge of the 
+marker.  For example, distance from a box or polygon is measured as the
+distance from to one of the sides, for text it is the distance to the
+start of the text string.  There is no way to \fIun\fRdelete a marker other
+than to redraw it.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_deleteMark (CDLPtr cdl, int x, int y)\fR
+.fi
+.NH 3
+The Entire Overlay
+.LP
+	To erase all markers currently displayed use the
+\fBcdl_clearOverlay()\fR procedure.  Markers are erased in the reverse order
+they were drawn to help reduce the chance that overlaying markers will leave
+stray pixels.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_clearOverlay (CDLPtr cdl)\fR
+.fi
+.NH 2
+Redraw
+.LP
+	The \fBcdl_redrawOverlay()\fR procedure can be used to redraw all
+markers currently in the display list.  This is sometimes needed when 
+subraster I/O procedures are used to redisplay subregions and overwrite
+existing markers.
+.sp 0.5
+.us "Synopsis"
+.nf
+	\f(CWint cdl_redrawOverlay (CDLPtr cdl)\fR
+.fi
+.NH
+ANSI C Function Prototypes
+.LP
+	The current release of CDL provides full ANSI C function prototypes
+for all public and private procedures.  By default these will not be used 
+even on systems with native ANSI compilers, however.
+To make use of the CDL prototypes users will
+need to define the macro \fBCDL_ANSIC\fR either when compiling the program
+(using the -D option to the compiler),
+or as a definition in the program source preceding the 'cdl.h' include
+directive.
+.LP
+	For example,
+.sp 0.5
+.nf
+	\f(CW#define  CDL_ANSIC
+	#include "cdl.h"
+	     :
+	main (int argc, char **argv)
+	     :\fR
+.fi
+.sp 0.5
+or when compiling using something like
+.sp 0.5
+.nf
+	\f(CWcc -DCDL_ANSIC client.c libcdl.a -lm\fR
+.fi
+.sp 0.5
+	Note that when using CDL_ANSIC to build the client program it is
+also required that the CDL itself be built in the same way to avoid
+confusing FPE errors.  Similarly, when building client tasks that \fIdo
+not\fR
+use CDL_ANSIC you must use a version of the library that has not been
+compiled with prototypes.
+.LP
+	The reason is that the float args to the CDL procedures in the
+library, or in your task calls, are
+promoted to doubles when compiling those procedures, but may only be passed as
+floats in your code (or as double where the CDL is expecting float).  
+This means the argument stack is off by 4 bytes for each float arg and
+the values interpreted by the CDL procedure will be corrupted.
+If you're going to use the prototypes you'll
+need to edit the CDL Imakefile to define "-DCDL_ANSIC" in the EXTRA_DEFINES
+so it will use the prototypes and everything will line up.  You will then
+need to rebuild the libcdl.a as well as relink your program.
+.NH
+Fortran Language Binding Notes
+.LP
+	The Fortran language binding routines are implemented in C but
+should be accessible from any fortran program as though they were real
+fortran subroutines.  The calling sequences are the same as with the C
+library routines with the following exceptions:
+.IP
+\(bu  The CDL package pointer is maintained internally so no 'cdl' pointer is
+passed in the fortran interface.
+.IP
+\(bu  All routines which are integer procedures in the C interface return an
+extra 'ier' argument to contain the error flag.  All Fortran functions are
+implemented as subroutines.
+.IP
+\(bu  The procedure names are the same except that \fIcdl_\fR has been
+replaced with \fIcf\fR in the fortran binding.  If your compiler is
+case-sensitive then use all lower case letters.
+.LP
+The binding has been tested on a number of different platforms without 
+problems.  The procedure names haven't been restricted to the traditional
+6-character fortran names since most modern compilers can handle longer
+names, if yours isn't one of them contact \fIiraf@noao.edu\fR for help
+in changing the names.
+.LP
+	Since the CDL is implemented as a set of C routines, the one aspect
+that cannot be overlooked in the fortran binding is the between Fortran and
+C storage order for arrays.  In most cases this will not be a problem since
+the CDL routines are just passing around pointers even if they live for a 
+short while in a fortran program.  The problem comes when using the fortran
+program to read the arrays, for example in using the array returned by the
+\fBcfreadIRAF()\fR procedure, or when passing in arrays for display that
+originated in the user's fortran code.  In these cases the array \fBmust\fR
+be transposed to be interpreted correctly.  It was assumed that in most
+applications arrays returned by CDL procedures would be immediately passed
+to other CDL procedures so having the binding routines
+transpose the array to/from
+Fortran storage order was unnecessarily inefficient.  This may be changed in
+later releases if required.
+
+.NH
+SPP Language Binding Notes
+.LP
+	The SPP language binding is experimental and is intended to provide
+a way to quickly prototype tasks, it should not be used in production code
+as it may not be as portable as the rest of the task.  In essence this 
+binding is a layer on top of the Fortran binding since most IRAF platforms
+still use Fortran as the intermediate code.  The calling sequences are the
+same as with the Fortran library routines with the following caveats:
+.IP
+\(bu  The 'cdlspp.h' SPP include file is required by all files which call
+CDL routines.  The binding names are actually SPP macros to resolve the
+current 6 character limit on procedure names.
+.IP
+\(bu  All character string arguments must be dimensioned to at least SZ_FNAME 
+characters in length.
+.IP
+\(bu  The CDL package pointer is maintained internally so no 'cdl' pointer is
+passed in the fortran interface.
+.IP
+\(bu  All routines which are integer procedures in the C interface return an
+extra 'ier' argument to contain the error flag.  All SPP functions are
+implemented as subroutines.
+.IP
+\(bu  On HPUX or IBM RS6000 systems the 'cdlspp.h' file must be edited to
+remove the trailing underscores from the procedure name macros.  This is
+because on these platforms the fortran compiler will not append an
+underscore to the SPP symbols as it does on other platforms.
+
+.NH
+IIS Protocol Description
+.LP
+	The communications protocol used by the CDL and servers such as 
+\fIXImtool\fR and \fISAOimage\fR, is a slightly modified version of that used
+by the IIS Model 70.  All operations are initiated by sending a header 
+packet containing a \fIthing id\fR (tid) and \fIsubunit\fR selecting the
+function to be performed, optionally followed by data up to 32K bytes long.
+The IIS header packet used is defined as
+.nf
+		\f(CWstruct  iism70 {
+        		short   tid;
+        		short   thingct;
+        		short   subunit;
+        		short   checksum;
+        		short   x, y, z;
+        		short   t;
+		};\fR   
+.fi
+
+The \fIthing count\fR field contains the negative number of bytes of data
+that will be sent following the header packet.  The IIS header checksum is
+computed as 
+.nf
+\f(CW
+    checksum = 0177777 - (tid + subunit + thingct + x + y + z + t);
+\fR
+.fi
+The four IIS registers are set differently depending on the operation, a
+summary of the header packets for each operation is summarized below. 
+
+.KS
+.ce 1
+\fBIIS Header Packet Summary\fR
+.TS
+tab(:);
+c c c c c c c c c.
+:TID:Subunit:Thingct:X:Y:Z:T:Data
+.T&
+l | l | l | c | c | c | l | l | l |.
+:_:_:_:_:_:_:_:_
+Read Data:IIS_READ\fB|\fPPACKED:MEMORY:-nbytes:x:y:frame:-:nbytes
+Write Data:IIS_WRITE\fB|\fPPACKED:MEMORY:-nbytes:x:y:frame:-:nbytes
+Read Cursor:IIS_READ:IMCURSOR:-:-:-:-:-:-
+Write Cursor:IIS_WRITE:IMCURSOR:-:x:y:wcs:-:-
+Set Frame:IIS_WRITE:LUT\fB|\fPCOMMAND:-1:-:-:-:-:2
+Write WCS:IIS_WRITE\fB|\fPPACKED:WCS:-N:-:-:frame:fb:N
+Read WCS:IIS_READ:WCS:-:-:-:frame:wcs:320
+Erase Frame:IIS_WRITE \fB|\fP fb:FEEDBACK:-:-:-:frame:-:-
+:_:_:_:_:_:_:_:_
+.TE
+.KE
+.TS
+l l l.
+Where	nbytes	= number of bytes expected or written
+	x	= x position of operation in frame buffer coords
+	y	= y position of operation in frame buffer coords
+	frame	= frame number (passed as bitflag (i.e. 1, 2 ,4 8, etc)
+	fb	= frame buffer config number (zero indexed)
+	N	= length of WCS string
+	wcs	= WCS number (usually zero)
+	Data	= the number of bytes of data to be read or written following the header packet.
+
+	IIS_WRITE	 = 0400000
+	IIS_READ	 = 0100000   
+	COMMAND	 = 0100000
+	PACKED	 = 0040000
+	IMC_SAMPLE	 = 0040000
+		
+	MEMORY	 = 001
+	LUT	 = 002
+	FEEDBACK	 = 005
+	IMCURSOR	 = 020
+	WCS	 = 021
+.TE
+.LP
+TID fields can be logically OR'd with the PACKED flag indicating the number
+of data bytes is exactly \fIthingct\fR bytes long, otherwise \fIthingct\fR
+must be specified as half the number of data bytes.  In a cursor read, if
+the IIS_READ flag is OR'd with IMC_SAMPLE the logical cursor position (i.e.
+the last value read or set) is returned immediately, otherwise the server
+will wait for a keystroke to be hit before returning a string containing the
+(x,y) position, wcs of the read, and the keystroke.  When setting the frame
+you must send a short integer in the data containing the frame selected.
+
+.NH
+VXIMTOOL Proxy/Display Server Usage
+.LP
+\fIVXIMTOOL\fR is a image display server process much like \fIXIMTOOL\fR,
+except that all it normally does is respond to datastream requests
+to read and write to internal frame buffers maintained as arrays in memory.
+Multiple frame buffers and frame buffer configurations are supported.  It
+can be used to debug CDL programs by printing out the 
+protocol packets received, or can simply be used as a dummy server in cases
+where no image display is really needed.  By enabling the \fI-proxy\fR
+flag the server can also be used to repeat the datastream requests to a
+list of other servers, effectively splitting the image display to a number
+of other servers.  See the \fIvximtool\fR man page for details on other 
+command-line arguments and usage.
+.LP
+The program was originally intended as a debugging tool, either in the
+development of CDL clients directly or in cases where the display may
+need to go to separate screens as part of a larger project.  For example,
+engineers may wish to "eavesdrop" on the system by viewing images displayed
+by CDL clients used as part of a data acquisition system.  It can also be
+used as a memory-only display server for CDL clients which need to be run
+in the background as part of a pipeline processing system requiring a
+frame buffer for image marking.
+.LP
+In proxy mode the program acts as a relay for the IIS datastream packets,
+sending image data, frame requests, etc. to a list of other servers specified
+on the command line.  The effect of this is to allow a client to display to
+this program which then re-displays to each of the other named servers.  
+Of course CDL clients can also do this internally by opening multiple
+connections, using \fIvximtool\fR in proxy mode adds the functionality to
+programs which may use this feature only ocasionally.  A maximum of 8 servers
+may be named, they may be either on the local host or a remote machine 
+and connections can be established using either fifos or sockets.  See
+above or the \fIvximtool\fR man page for details on how to specify the
+server connection.
+.LP
+The current implementation has a few restrictions users should keep in mind:
+.IP
+\(bu  The time to display an image or perform any output operation scales
+with the number of connected hosts.  Each IIS packet is forwarded to each
+host in turn before processing the next input packet, and connection over a slow
+network will delay the entire process.
+.IP
+\(bu  Cursor and image readback are done by sending the request \fIonly\fR to
+the first server named on the command line.  This is done to avoid forcing
+a cursor mode on all servers which cannot be terminated when a response is
+received from only one server, and means that the first server named should
+be the one used to control interactive sessions.  The remaining servers
+however can still respond to cursor requests from other applications
+connected to that server on another channel.
+.IP
+\(bu  All named servers must be running prior to starting the proxy server.  
+The connection to the remote servers is established when this task is first
+run and if no server is running that connection will be ignored. The task will
+exit if no remote servers can be found for display.
+.IP
+\(bu  Any connected server that shuts down while the proxy server is running
+is likely to cause the program to crash on the next display. 
+.bp
+.NH
+C Interface Summary
+.LP
+.in 0.5i
+#include  "\fBcdl.h\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+CDLPtr \fBcdl_open\fR	(imtdev)
+int \fBcdl_displayPix\fR	(cdl, pix, nx, ny, bitpix, frame, fbconfig, zscale)
+char \fBcdl_readCursor\fR	(cdl, sample, x, y, wcs, key)
+int \fBcdl_setCursor\fR	(cdl, x, y, wcs)
+int \fBcdl_setWCS\fR	(cdl, name, title, a, b, c, d, tx, ty, z1, z2, zt)
+int \fBcdl_getWCS\fR	(cdl, name, title, a, b, c, d, tx, ty, z1, z2, zt)
+void \fBcdl_setFrame\fR	(cdl, frame)
+int \fBcdl_clearFrame\fR	(cdl)
+void \fBcdl_close\fR	(cdl)
+
+int \fBcdl_displayIRAF\fR	(cdl, fname, band, frame, fbconfig, zscale)
+int \fBcdl_isIRAF\fR	(fname)
+int \fBcdl_readIRAF\fR	(fname, band, pix, nx, ny, bitpix, title)
+
+int \fBcdl_displayFITS\fR	(cdl, fname, frame, fbconfig, zscale)
+int \fBcdl_isFITS\fR	(fname)
+int \fBcdl_readFITS\fR	(fname, pix, nx, ny, bitpix, title)
+
+void \fBcdl_computeZscale\fR	(cdl, pix, nx, ny, bitpix, z1, z2)
+void \fBcdl_zscaleImage\fR	(cdl, pix, nx, ny, bitpix, z1, z2)
+
+int \fBcdl_printPix\fR	(cdl, cmd, pix, nx, ny, annotate)
+int \fBcdl_printPixToFile\fR	(cdl, fname, pix, nx, ny, annotate)
+
+int \fBcdl_readImage\fR	(cdl, pix, nx, ny)
+int \fBcdl_readFrameBuffer\fR	(cdl, pix, nx, ny)
+int \fBcdl_readSubRaster\fR	(cdl, lx, ly, nx, ny, pix)
+int \fBcdl_writeSubRaster\fR	(cdl, lx, ly, nx, ny, pix)
+
+void \fBcdl_selectFB\fR	(cdl, nx, ny, fb, w, h, nf, reset)
+void \fBcdl_setFBConfig\fR	(cdl, configno)
+void \fBcdl_getFBConfig\fR	(cdl, configno, w, h, nf)
+void \fBcdl_lookupFBSize\fR	(cdl, configno, w, h, nf)
+
+void \fBcdl_setZTrans\fR	(cdl, ztrans)
+void \fBcdl_setZScale\fR	(cdl, z1, z2)
+void \fBcdl_setSample\fR	(cdl, nsample)
+void \fBcdl_setSampleLines\fR	(cdl, nlines)
+void \fBcdl_setContrast\fR	(cdl, contrast)
+void \fBcdl_setName\fR	(cdl, imname)
+void \fBcdl_setTitle\fR	(cdl, imtitle)
+
+void \fBcdl_getFrame\fR	(cdl, frame)
+void \fBcdl_getZTrans\fR	(cdl, ztrans)
+void \fBcdl_getZScale\fR	(cdl, z1, z2)
+void \fBcdl_getSample\fR	(cdl, nsample)
+void \fBcdl_getSampleLines\fR	(cdl, nlines)
+void \fBcdl_getContrast\fR	(cdl, contrast)
+void \fBcdl_getName\fR	(cdl, imname)
+void \fBcdl_getTitle\fR	(cdl, imtitle)
+
+int \fBcdl_mapFrame\fR	(cdl, frame)
+int \fBcdl_markCoordsFile\fR	(cdl, fname, type, size, color, label)
+int \fBcdl_markPoint\fR	(cdl, x, y, number, size, type, color)
+int \fBcdl_markPointLabel\fR	(cdl, x, y, label, size, type, color)
+int \fBcdl_markLine\fR	(cdl, xs, ys, xe, ye, color)
+int \fBcdl_markBox\fR	(cdl, lx, ly, ux, uy, fill, color)
+int \fBcdl_markPolygon\fR	(cdl, xarray, yarray, npts, fill, color)
+int \fBcdl_markPolyline\fR	(cdl, xarray, yarray, npts, color)
+int \fBcdl_markCircle\fR	(cdl, x, y, radius, fill, color)
+int \fBcdl_markCircAnnuli\fR	(cdl, x, y, radius, nannuli, sep, color)
+int \fBcdl_markEllipse\fR	(cdl, x, y, xrad, yrad, rotang, fill, color)
+int \fBcdl_markEllipAnnuli\fR	(cdl, x, y, xrad, yrad, ang, nannuli, sep, color)
+int \fBcdl_markText\fR	(cdl, x, y, str, size, angle, color)
+int \fBcdl_setFont\fR	(cdl, font)
+int \fBcdl_setTextWidth\fR	(cdl, width)
+int \fBcdl_setLineWidth\fR	(cdl, width)
+int \fBcdl_setLineStyle\fR	(cdl, style)
+int \fBcdl_deleteMark\fR	(cdl, x, y)
+int \fBcdl_clearOverlay\fR 	(cdl)
+int \fBcdl_redrawOverlay\fR 	(cdl)
+.TE
+
+.bp
+.NH
+C Example Tasks
+.LP
+	The examples shown here are for demonstration purposes only.  They
+are based on working example tasks in the CDL source \fIexamples\fR
+subdirectory, see the programs there for the full program listing.
+
+.NH 2
+Display Example
+.LP
+.ps -2
+.vs -2
+.nf
+\f(CW
+#include <stdio.h>
+#include <unistd.h>
+#include "cdl.h"
+
+/*  \fIDISPLAY -- Example task to display an image as a command-line task.
+  *  This task is meant to show three ways the CDL can be used to display
+  *  an image, see the code comments for a description of each method.
+  *
+  *  Examples:
+  *      To display a simple IRAF or FITS file:
+  *	    % ./display -frame 2 image.imh
+  *         % ./display image.fits
+  *
+  *      To display a FITS file as a raw image:
+  *          % ./display -nx 512 -ny 512 -depth 16 -hskip 5760 -raw dpix.fits
+  *
+  *  Usage:
+  * 	display [-depth N] [-fits] [-frame N] [-fbconfig N] [-hskip N]
+  *	    [-iraf] [-nozscale] [-nx N] [-ny N] [-raw] [-zscale] file\fP
+ */
+
+#define NONE	-1
+#define	IRAF	 0
+#define	FITS	 1
+#define	RAW	 2
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname, title[128];
+	int	i, status = 0, frame = 1, fbconfig = 0, zscale = 1;
+	int	format = NONE, nx = 0, ny = 0, depth = 8, hskip = 0;
+	float 	z1, z2;
+	int	fb_w, fb_h, nf;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	    for (i=1; i < argc; i++) {
+            if (strcmp (argv[i], "-depth") == 0)         depth = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-fits") == 0)     format = FITS;
+            else if (strcmp (argv[i], "-frame") == 0)    frame = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-fbconfig") == 0) fbconfig = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-hskip") == 0)    hskip = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-iraf") == 0)     format = IRAF;
+            else if (strcmp (argv[i], "-nozscale") == 0) zscale = 0;
+            else if (strcmp (argv[i], "-nx") == 0)       nx = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-ny") == 0)       ny = atoi (argv[++i]);
+            else if (strcmp (argv[i], "-raw") == 0)      format = RAW;
+            else if (strcmp (argv[i], "-zscale") == 0)   zscale = 1;
+	    }
+	}
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	fname = argv[argc-1];
+
+	/* \fIMETHOD 1:  Displays the image using the high-level format display
+ 	  * call.  Display as an IRAF image if the option was set indicating
+	  * this is the format, otherwise test the file to see if it is anyway.\fP
+	 */
+	if (format == IRAF || (format == NONE && \fBcdl_isIRAF\fP (fname))) {
+	    status = \fBcdl_displayIRAF\fP (cdl, fname, 1, frame, FB_AUTO, zscale);
+
+	/* \fIMETHOD 2:  Uses the CDL procedure for getting image pixels from
+	  * a known format, minimal work required to display an image.  The
+ 	  * point here is that you can use this method to process the image
+	  * yourself prior to display, e.g. subsample the pixels, apply a user
+	  * LUT, etc but still use the CDL to get the raw image and do the
+	  * display.\fP
+	 */
+	} else if (format == FITS || (format == NONE && \fBcdl_isFITS\fP (fname))) {
+
+	    /* \fIGet the FITS image pixels, exit w/ an error status if something
+	     * went wrong, the procedure will print what that was.\fP
+	     */
+            if (\fBcdl_readFITS\fP (fname, &pix, &nx, &ny, &depth, title)) {
+                \fBcdl_close\fP (cdl);		/* close the package  */
+                 exit (1);			/* exit w/ error code */
+            }
+
+            /* \fINow select a frame buffer large enough for the image. The 
+              * fbconfig number is passed in the WCS packet, but the display
+              * call below will compute the correct WCS for the image and
+              * transmit that prior to display, all we're doing here is
+              * setting up the FB to be used.\fP
+             */
+            if (fbconfig == 0)
+                cdl_selectFB (cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf, 0);
+
+           /* \fILastly, display the pixels to the requested frame, do any
+             * zscaling requested using the CDL procedure.\fP
+            */
+            status = \fBcdl_displayPix\fP (cdl, pix, nx, ny, depth, frame, 
+		fbconfig, zscale);
+
+	/* \fIMETHOD 3:  Displays an image of raw pixels.  The client code is
+	  * responsible for reading the image and calling all the procedures
+	  * needed for image display, initialize the frame, zscaling pix, etc.
+	  * While we assume a simple raster format in this program, the user
+	  * code can read a compressed image format such as GIF, mosaic multiple
+	  * images for display as a single image, or just about anything that
+	  * produces a raster for display. The intent here is to show all the
+	  * lowest level calls needed for displaying the image.\fP
+	 */
+	} else if (format == RAW) {
+	    FILE	*fd;
+	    int		lx, ly;
+
+	    if (nx == 0 || ny == 0) {
+	        fprintf (stderr, "No size given for raw data.\\n");
+	        exit (1);
+	    }
+
+	    /* \fIOpen the image file if we can.\fP */
+	    if (fd = fopen (fname, "r")) {
+
+		/* \fISeek to the offset specified.\fP */
+		lseek (fileno(fd), (off_t) hskip, SEEK_SET);
+
+		/* \fIAllocate the pixel pointer and read the data.\fP */
+		pix = (unsigned char *) malloc (nx * ny * (depth / 8));
+		fread (pix, depth/8, nx * ny, fd);
+
+		/* \fIIf we're zscaling and depth is more than 8-bits, do that.\fP */
+		if (zscale && depth > 8) {
+		    \fBcdl_computeZscale\fP (cdl, pix, nx, ny, depth, &z1, &z2);
+		    \fBcdl_zscaleImage\fP (cdl, &pix, nx, ny, depth, z1, z2);
+		}
+
+		/* \fINow select a frame buffer large enough for the image.  We'll
+		  * ask that this be reset but the change won't go to the server
+		  * until we send in a WCS, so compute that as well.  For the
+		  * WCS we assume a simple linear transform where the image is
+		  * Y-flipped, the (x,y) translation is computed so it is correct
+		  * for an frame buffer >= than the image size.\fP
+		 */
+                \fBcdl_selectFB\fP(cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf,1);
+                \fBcdl_setWCS\fP (cdl, fname, NULL, 1., 0., 0., -1., 
+		    (float) (nx / 2) - (fb_w / 2) + 1,   /* \fIX trans.\fP */
+		    (float) (fb_h / 2) + (ny / 2),	 /* \fIY trans.\fP */
+		    z1, z2, CDL_LINEAR);		 /* \fIZ transform\fP */
+
+		/* \fISelect and clear the requested frame prior to display.\fP */
+		\fBcdl_setFrame\fP (cdl, frame);
+		\fBcdl_clearFrame\fP (cdl);
+
+		/* \fINow display the pixels.  We'll compute the image placement
+	   	  * ourselves and write the image as a raw subraster of the frame
+		  * buffer.  In this case we'll center the image, but the CDL
+		  * cdl_writeSubRaster() procedure can be used to write arbitrary
+		  * rasters at any point in the frame buffer.\fP
+		 */
+        	lx = (fb_w / 2) - (nx / 2);
+        	ly = fb_h - ((fb_h / 2) + (ny / 2));
+                status = \fBcdl_writeSubRaster\fP (cdl, lx, ly, nx, ny, pix);
+	    } else
+		status = 1;
+	} else {
+	    if (access (fname, F_OK) == 0)
+		fprintf (stderr, "'%s': unknown image format.\\n", fname);
+	    else
+		fprintf (stderr, "'%s': image does not exist.\\n", fname);
+	    status = 1;
+	}
+
+	/* \fINow just free the pixel pointer to clean up.\fP */
+	if (pix)
+	    free ((unsigned char *) pix);
+	\fBcdl_close\fP (cdl);		/* \fIclose the package\fP */
+	exit (status);
+}
+\fR
+.fi
+.vs +2
+.ps +2
+.bp
+.NH 2
+Interactive Graphics Overlay Example
+.LP
+.ps -2
+.vs -2
+.nf
+\f(CW
+#include <stdio.h>
+#include <unistd.h>
+#include <math.h>
+#include "cdl.h"
+
+/* \fI
+  *  TVMARK -- Example task for displaying an marking images.  This program
+  *  can be used to either display an image and overlay points defined in
+  *  a coordinate file, map an existing display frame for marking, or option-
+  *  ally enter a cursor command loop after either of these providing other
+  *  marking capability.  All options support minimum match.
+  *
+  *  Examples:
+  *	% tvmark dpix.fits
+  * 	% tvmark -coords coords -color 205 dpix.fits
+  *	% tvmark -frame 2
+  *	% tvmark -coords coords -interactive dpix.fits
+  *
+  *  Usage:
+  * 	tvmark [-frame N] [-fbconfig N] [-coords <file>] [-size N] [-color N]
+  *	     [-nolabel] [-fill] [-interactive] [image]\fP
+ */
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname = NULL, *cfname = NULL;
+	int	i, status = 0, fill = 0, frame = 1, fb = FB_AUTO, zscale = 1;
+	int	color = 201, label = 1, size = 9, interactive = 0;
+	float 	z1, z2;
+	int	fb_w, fb_h, nf;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	    for (i=1; i < argc; i++) {
+            if (strncmp(argv[i], "-color",4) == 0) color = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-coords",4) == 0) cfname = argv[++i];
+            else if (strncmp(argv[i], "-fbconfig",3) == 0) fb = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-fill",4) == 0) fill = 1;
+            else if (strncmp(argv[i], "-frame",3) == 0) frame = atoi (argv[++i]);
+            else if (strncmp(argv[i], "-interactive",4) == 0) interactive = 1;
+            else if (strncmp(argv[i], "-nolabel",4) == 0) label = 0;
+            else if (strncmp(argv[i], "-nozscale",4) == 0) zscale = 0;
+            else if (strncmp(argv[i], "-size",2) == 0) size = atoi (argv[++i]);
+	    else 
+	        fname = argv[i];
+	    }
+	}
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* \fIIf an image was specified display it first, otherwise assume the
+	  * image has already been loaded in the frame and mark that.\fP
+	 */
+	if (fname) {
+	    if (\fBcdl_isIRAF\fP (fname))
+	        status = \fBcdl_displayIRAF\fP (cdl, fname, 1, frame, fb, zscale);
+	    else if (\fBcdl_isFITS\fP (fname))
+	        status = \fBcdl_displayFITS\fP (cdl, fname, frame, fb, zscale);
+	    else {
+		if (access (cfname, F_OK) == 0)
+	            fprintf (stderr, "'%s': unknown image format.\\n", fname);
+	 	else
+	            fprintf (stderr, "'%s': image doesn't exist.\\n", fname);
+	        status = 1;
+	    }
+	    if (status)  goto err_;
+	} else {
+	
+	    /* \fIIf we've requested a special frame buffer, set it now.\fP */
+	    if (fb > 0)
+		  \fBcdl_setFBConfig\fP (cdl, fb);
+
+	    /* \fIMap the current display frame for use as an image.\fP */
+	    \fBcdl_mapFrame\fP (cdl, frame);
+	}
+
+	/* \fIIf a coordinate file was specified read the file and mark those
+	  * coords with points.\fP
+	 */
+	if (cfname) 
+            \fBcdl_markCoordsFile\fP (cdl, cfname, M_STAR, size, color, label);
+
+	/* \fILastly, start up an interactive cursor loop if needed.\fP */
+	if (interactive)
+	    tvmInteractive (cdl, label, fill, color, size);
+	
+	/* \fIClose the package and clean up.\fP */
+err_:	\fBcdl_close\fP (cdl);			
+	exit (status);
+}
+
+/*  \fITVMINTERACTIVE -- Process commands interactively.\fP  */
+
+tvmInteractive (cdl, label, fill, color, size)
+CDLPtr	cdl;
+int	label, fill, color, size;
+{
+	float   angle = 0.0, rx, ry, txsize = 1.;
+	int     nx, ny, i, x, y, x2, y2, wcs;
+	int     number=1, radius=11, xrad=11, yrad=6, nannuli=3, sep=5;
+	char    key, cmd[SZ_NAME], str[SZ_NAME];
+	unsigned char *pix;
+
+	/* \fIProcess commands until a 'q' keystroke is hit.\fP */
+	while (\fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key) != 'q') {
+	    x = (int) (rx + 0.5);	/* \fIconvert to int pixels\fP */
+	    y = (int) (ry + 0.5);
+
+	    switch (key) {
+	    case ':':			/* \fIprocess a colon command\fP */
+		putchar (':');
+		gets (str);
+		for (i=0; str[i] != ' ' && str[i]; i++)
+		    cmd[i] = str[i];
+		cmd[i++] = '\0';
+
+		if (strcmp (cmd, "angle") == 0)        angle = atof (&str[i]);
+		else if (strcmp (cmd, "color") == 0)   color = atoi (&str[i]);
+		else if (strcmp (cmd, "fill") == 0)    fill = atoi (&str[i]);
+		else if (strcmp (cmd, "number") == 0)  number = atoi (&str[i]);
+		else if (strcmp (cmd, "nannuli") == 0) nannuli = atoi (&str[i]);
+		else if (strcmp (cmd, "label") == 0)   label = atoi (&str[i]);
+		else if (strcmp (cmd, "sep") == 0)     sep = atoi (&str[i]);
+		else if (strcmp (cmd, "size") == 0)    size = atoi (&str[i]);
+		else if (strcmp (cmd, "txsize") == 0)  txsize = atof (&str[i]);
+		else if (strcmp (cmd, "xrad") == 0)    xrad = atoi (&str[i]);
+		else if (strcmp (cmd, "yrad") == 0)    yrad = atoi (&str[i]);
+		else if (strcmp (cmd, "print") == 0) {
+		    \fBcdl_readFrameBuffer\fP (cdl, &pix, &nx, &ny);
+		    \fBcdl_printPix\fP (cdl, NULL, pix, nx, ny, 1);
+		} else if (strcmp (cmd, "snap") == 0) {
+		    \fBcdl_readFrameBuffer\fP (cdl, &pix, &nx, &ny);
+		    \fBcdl_printPixToFile\fP (cdl, &str[i], pix, nx, ny, 1);
+		} else if (strcmp (cmd, "status") == 0) {
+		    printf ("angle	= %-5.3g\tcolor	= %d\t", angle, color);
+		    printf ("fill	= %-5d\tnumber	= %d\\n", fill, number);
+		    printf ("nannuli	= %-5d\tsep	= %d\t", nannuli, sep);
+		    printf ("size	= %-5d\ttxsize	= %g\\n", size, txsize);
+		    printf ("xrad	= %-5d\tyrad	= %d\t", xrad, yrad);
+		    printf ("label	= %-5d\\n", label);
+		}
+		break;
+
+	    case '?':
+		/* ......\fIhelp procedures\fP */
+		break;
+
+	    case 'p':				/* \fIplus mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_PLUS, color);
+		break;
+	    case 'x':				/* \fIcross mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_CROSS, color);
+		break;
+	    case '.':				/* \fIpoint mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_POINT, color);
+		break;
+	    case '*':				/* \fIstar mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_STAR, color);
+		break;
+	    case '_':				/* \fIhoriz dash mark\fP*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_HBLINE, color);
+		break;
+	    case '|':				/* \fIvert dash mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_VBLINE, color);
+		break;
+	    case 'o':				/* \fIcircle mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_CIRCLE|fill, color);
+		break;
+	    case 's':				/* \fIsquare mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_BOX|fill, color);
+		break;
+	    case 'v':				/* \fIdiamond mark\fP	*/
+		\fBcdl_markPoint\fP (cdl, x, y, (label ? number++ : 0), size, M_DIAMOND|fill, color);
+		break;
+
+	    case 'b':				/* \fIBox\fP		*/
+		printf ("Hit another key to define the box...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		\fBcdl_markBox\fP (cdl, x, y, x2, y2, fill, color);
+		break;
+	    case 'c':				/* \fICircle\fP		*/
+		printf ("Hit another key to set radius ...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		radius = (int) sqrt ((double) ((x2-x)*(x2-x) + (y2-y)*(y2-y)));
+		\fBcdl_markCircle\fP (cdl, x, y, radius, fill, color);
+		break;
+	    case 'd':				/* \fIDelete marker\fP	*/
+		\fBcdl_deleteMark\fP (cdl, x, y);
+		break;
+	    case 'e':				/* \fIEllipse\fP	*/
+		\fBcdl_markEllipse\fP (cdl, x, y, xrad, yrad, angle, fill, color);
+		break;
+	    case 'l':				/* \fILine\fP		*/
+		printf ("Hit another key to set line endpoint...\\n");
+	  	(void) \fBcdl_readCursor\fP (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + 0.5); 		y2 = (int) (ry + 0.5);
+		\fBcdl_markLine\fP (cdl, x, y, x2, y2, color);
+		break;
+	    case 't':				/* \fIText string\fP	*/
+		printf ("Text string: ");
+		gets (str);
+		\fBcdl_markText\fP (cdl, x, y, str, txsize, angle, color);
+		break;
+	    case 'C':				/* \fICircular annuli\fP*/
+		\fBcdl_markCircAnnuli\fP (cdl, x, y, radius, nannuli, sep, color);
+		break;
+	    case 'D':				/* \fIDelete all markers\fP*/
+		\fBcdl_clearOverlay\fP (cdl);
+		break;
+	    case 'E':				/* \fIElliptical annuli\fP*/
+		\fBcdl_markEllipAnnuli\fP (cdl, x, y, xrad, yrad, angle, nannuli, sep, color);
+		break;
+	    default:
+		break;
+	    }
+	}
+}
+\fR
+.fi
+.vs +2
+.ps +2
+.bp
+.NH 2
+Image Mosaic Example
+.LP
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+#include <stdio.h>
+#include <unistd.h>
+#\fBinclude "cdl.h"\fP
+
+/* \fIMOSAIC -- Example task to mosaic several images on a display. Demonstrates
+ * usage of low-level routines for complex display operations.\fP
+ */
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname = NULL, title[128];
+	int	i, j, k, status=0, label=0, frame=1, fb=FB_AUTO, zscale=1;
+	int	sample=1, pad=0, col=204, imx, imy, bitpix, nimages, nim;
+	int	ii, xinit, rowx, rowy, nnx, nny, fb_w, fb_h, nf, mx, my, nx, ny;
+	float 	z1, z2;
+	unsigned char *pix = NULL;
+	
+	/* \fIProcess the command line options.\fP */
+	if (argc > 1) {
+	  for (i=1; i < argc; i++) {
+            if (strncmp (argv[i], "-fbconfig",3) == 0) fb=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-frame",3) == 0) frame=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-color",3) == 0) col=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-label",4) == 0) label=1;
+	    else if (strncmp (argv[i],"-nozscale",4) == 0) zscale=0;
+	    else if (strncmp (argv[i],"-nx",3) == 0) nx=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-ny",3) == 0) ny=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-pad",4) == 0) pad=atoi(argv[++i]);
+	    else if (strncmp (argv[i],"-sample",4) == 0) sample=atoi(argv[++i]);
+	    else 
+	        break;
+	  }
+	}
+	nimages = argc - i;
+
+	/* \fIOpen the package and a connection to the server.\fP */
+	if (!(cdl = \fBcdl_open\fP ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* \fIClear the frame to begin.\fP */
+	(void) \fBcdl_clearFrame\fP (cdl);
+
+	/* \fILoop over each of the images in the list.\fP */
+	nim = rowx = rowy = nnx = nny = 0;
+	for (k=0; k < ny && nim < nimages; k++) {
+	    rowy += nny + pad; 
+	    for (rowx = xinit, j=0; j < nx && nim < nimages; j++) {
+
+		/* \fIGet the image name for display.\fP */
+		fname = argv[i++];
+
+		/* \fIFigure out what kind of image it is and get the pixels.\fP */
+            	if (cdl_isIRAF (fname))
+		    status = \fBcdl_readIRAF\fP (fname, 1, &pix, &imx, &imy, &bitpix, title);
+            	else if (cdl_isFITS (fname))
+		    status = \fBcdl_readFITS\fP (fname, &pix, &imx, &imy, &bitpix, title);
+            	else {
+		    fprintf(stderr, "'%s': unknown or nonexistant image.\\n", fname);
+		    status = 1;
+            	}
+            	if (status)  goto err_; 
+
+		/* \fICompute subsampled image size.\fP */
+		if (sample > 1)
+		    nnx = imx / sample, nny = imy / sample;
+		else
+		    nnx = imx, nny = imy;
+
+		/* \fIUnless we asked for a specific FB size find one large enough
+		 * to handle the mosaic.  We don't check to be sure what's
+		 * returned is really large enough.\fP
+		 */
+		if (nim == 0 && fb == FB_AUTO)
+		    \fBcdl_selectFB\fP (cdl, nx*nnx+(pad*(nx-1)), ny*nny+(pad*(ny-1)), &fb, &fb_w, &fb_h, &nf, 1);
+		else {
+		    \fBcdl_setFBConfig\fP (cdl, fb);
+		    \fBcdl_lookupFBSize\fP (cdl, fb, &fb_w, &fb_h, &nf);
+		}
+
+		/* \fIDefine a WCS for the frame.\fP */
+		\fBcdl_setWCS\fP (cdl, "image mosaic", title, 1., 0., 0., -1., 0., (float) ny*imy+(pad*(ny+1)), 1., 255., 1);
+
+		/* \fIThe first time through figure out the placement so the
+	   	 * entire mosaic is centered in the frame.\fP
+		 */
+		if  (nim == 0) {
+		    mx = (nx * nnx) + pad * (nx-1);
+		    my = (ny * nny) + pad * (ny-1);
+		    rowy = (fb_h - my) / 2;
+		    xinit = rowx = (fb_w - mx) / 2;
+		}
+
+		/* \fICompute the zscaled imaged pixels.\fP */
+		if (zscale) {
+		    \fBcdl_computeZscale\fP (cdl, pix, imx ,imy, bitpix, &z1, &z2);
+		    \fBcdl_zscaleImage\fP (cdl, &pix, imx ,imy, bitpix, z1, z2);
+		}
+
+		/* \fISubsample the image if requested.\fP */
+		if (sample > 1) {
+		    int l, m, n=0; 
+		    for (l=0; l < imy; l+=sample)
+		        for (m=0; m < imx; m+=sample)
+		            pix[n++] = pix[(l*imx)+m];
+		}
+
+		/* \fIWrite the image to the frame buffer.\fP */
+            	if (\fBcdl_writeSubRaster\fP (cdl, rowx, rowy, nnx, nny, pix)) goto err_; 
+
+		/* \fIDraw the image name as a label.\fP */
+		if (label) \fBcdl_markText\fP (cdl, rowx+10, rowy+10, fname, 1., 0., col);
+
+		nim++; 	rowx += nnx + pad; 
+	    }
+	}
+	
+	/* \fIClose the package and clean up.\fP */
+err_:	\fBcdl_close\fP (cdl);			
+	exit (status);
+}
+.fi
+.vs +2
+.ps +2
+.in -0.5i
+
+.bp
+.NH
+Fortran  Interface Summary
+.LP
+.in 0.5i
+include  "\fBcdlftn.inc\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+\fBcfopen\fR	(imtdev, ier)
+\fBcfdisplayPix\fR	(pix, nx, ny, bitpix, frame, fbconfig, zscale, ier)
+\fBcfreadCursor\fR	(sample, x, y, key, ier)
+\fBcfsetCursor\fR	(x, y, wcs, ier)
+\fBcfsetWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcfgetWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcfsetFrame\fR	(frame)
+\fBcfclearFrame\fR	(ier)
+\fBcfclose\fR	()
+
+\fBcfdisplayIRAF\fR	(fname, band, frame, fbconfig, zscale, ier)
+\fBcfisIRAF\fR	(fname, isiraf)
+\fBcfreadIRAF\fR	(fname, band, pix, nx, ny, bitpix, title, ier)
+
+\fBcfdisplayFITS\fR	(fname, frame, fbconfig, zscale, ier)
+\fBcfisFITS\fR	(fname, isfits)
+\fBcfreadFITS\fR	(fname, pix, nx, ny, bitpix, title, ier)
+
+\fBcfcomputeZscale\fR	(pix, nx, ny, bitpix, z1, z2)
+\fBcfzscaleImage\fR	(pix, nx, ny, bitpix, z1, z2)
+
+\fBcfprintPix\fR	(cmd, pix, nx, ny, annotate, ier)
+\fBcfprintPixToFile\fR	(fname, pix, nx, ny, annotate, ier)
+
+\fBcfreadImage\fR	(pix, nx, ny, ier)
+\fBcfreadFrameBuffer\fR	(pix, nx, ny, ier)
+\fBcfreadSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+\fBcfwriteSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+
+\fBcfselectFB\fR	(nx, ny, fb, w, h, nf, reset)
+\fBcfsetFBConfig\fR	(configno)
+\fBcfgetFBConfig\fR	(configno, w, h, nf)
+\fBcflookupFBSize\fR	(configno, w, h, nf)
+
+\fBcfsetZTrans\fR	(ztrans)
+\fBcfsetZScale\fR	(z1, z2)
+\fBcfsetSample\fR	(nsample)
+\fBcfsetSampleLines\fR	(nlines)
+\fBcfsetContrast\fR	(contrast)
+\fBcfsetName\fR	(imname)
+\fBcfsetTitle\fR	(imtitle)
+
+\fBcfgetFrame\fR	(frame)
+\fBcfgetZTrans\fR	(ztrans)
+\fBcfgetZScale\fR	(z1, z2)
+\fBcfgetSample\fR	(nsample)
+\fBcfgetSampleLines\fR	(nlines)
+\fBcfgetContrast\fR	(contrast)
+\fBcfgetName\fR	(imname)
+\fBcfgetTitle\fR	(imtitle)
+
+\fBcfmapFrame\fR	(frame, ier)
+\fBcfmarkPoint\fR	(x, y, number, size, type, color, ier)
+\fBcfmarkcoordsfile\fR	(fname, type, size, color, label, ier)
+\fBcfmarkPointLabel\fR	(x, y, label, size, type, color, ier)
+\fBcfmarkLine\fR	(xs, ys, xe, ye, color, ier)
+\fBcfmarkBox\fR	(lx, ly, ux, uy, fill, color, ier)
+\fBcfmarkPolygon\fR	(xarray, yarray, npts, fill, color, ier)
+\fBcfmarkPolyline\fR	(xarray, yarray, npts, color, ier)
+\fBcfmarkCircle\fR	(x, y, radius, fill, color, ier)
+\fBcfmarkCircAnnuli\fR	(x, y, radius, nannuli, sep, color, ier)
+\fBcfmarkEllipse\fR	(x, y, xrad, yrad, rotang, fill, color, ier)
+\fBcfmarkEllipAnnuli\fR	(x, y, xrad, yrad, ang, nannuli, sep, color, ier)
+\fBcfmarkText\fR	(x, y, str, size, angle, color, ier)
+\fBcfsetfont\fR		(font)
+\fBcfsettextwidth\fR	(width)
+\fBcfsetlwidth\fR	(width)
+\fBcfsetlstyle\fR	(style)
+\fBcfdeleteMark\fR	(x, y, ier)
+\fBcfclearOverlay\fR	(ier)
+\fBcfredrawOverlay\fR	(ier)
+.TE
+.bp
+.NH
+Fortran Example Tasks
+.LP
+	The examples shown here are for demonstration purposes only.  They
+are based on working example tasks in the CDL source \fIexamples\fR
+subdirectory, see the programs there for the full program listing.
+
+.NH 2
+Display Example
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+\f(CW
+C ========================================================================
+C  FDISPLAY -- Example fortran program showing the use of the Client
+C  Display Library (CDL) Fortran interface for displaying images.
+C ========================================================================
+
+	PROGRAM FDISPLAY
+	character*64   imname
+
+C 	\fIInitialize the CDL package\fP
+	call \fBcfopen\fP (0, ier)
+	if (ier .gt. 0) then
+	    write (*,*) 'open: Error return from CDL'
+	    goto 999
+	endif
+
+	write (*, "('Image Name: ', $)")
+	read (5, *) imname
+	write (*, "('Frame Number: ', $)")
+	read (5, *) iframe
+	write (*, "('Frame buffer configuration number: ', $)")
+	read (5, *) ifb
+
+C	\fIIf we've got a FITS format image, go ahead and display it.\fP
+	call \fBcfisFITS\fP (imname, isfits)
+	if (isfits .gt. 0) then
+	    call \fBcfdisplayFITS\fP (imname, iframe, ifb, 1, ier)
+	else 
+C	    \fIWe've got an IRAF format image, go ahead and display it.\fP
+	    call \fBcfisIRAF\fP (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call \fBcfdisplayIRAF\fP (imname, 1, iframe, ifb, 1, ier)
+	    else 
+C	    	\fIUnrecognized image, punt and exit.\fP
+	        write (*,*) 'Unrecognized image format'
+	    endif
+	endif
+
+C 	\fIClean up and exit.\fP
+999	continue
+	call \fBcfclose\fP (ier)
+	end
+\fR
+.fi
+.ps +2
+.vs +2
+.in -0.5i
+.bp
+.NH 2
+Interactive Graphics Overlay Example
+.in 0.5i
+.ps -2
+.vs -2
+.nf
+\f(CW
+C ==========================================================================
+C  FTVMARK --  Example fortran program showing the use of the Client
+C  Display Library (CDL) Fortran interface for doing graphics overlay. No
+C  checking of the error flag is done here for space considerations.
+C ==========================================================================
+
+	PROGRAM FTVMARK
+	include 	"\fBcdlftn.inc\fP"
+	character*64   	imname
+
+C 	\fIInitialize the CDL package\fP
+	call \fBcfopen\fP (0, ier)
+
+	write (*, "('Image Name: ', $)") 
+	read (5, *) imname
+	write (*, "('Frame Number: ', $)")
+	read (5, *) iframe
+	write (*, "('Frame buffer configuration number: ', $)")
+	read (5, *) ifb
+
+C	\fIIf we've got a FITS format image, go ahead and display it.\fP
+	call \fBcfisFITS\fP (imname, isfits)
+	if (isfits .gt. 0) then
+	    call \fBcfdisplayFITS\fP (imname, iframe, ifb, 1, ier)
+	else 
+C	    \fIWe've got an IRAF format image, go ahead and display it.\fP
+	    call \fBcfisIRAF\fP (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call \fBcfdisplayIRAF\fP (imname, 1, iframe, ifb, 1, ier)
+	    else 
+C	        \fINo valid image given, so map the current display for marking.\fP
+	        call \fBcfmapFrame\fP (iframe)
+	    endif
+	endif
+
+C 	\fINow that we've got an image displayed or mapped, enter a cursor loop to mark the image. \fP
+	call markInteractive ()
+
+C 	\fIClean up and exit\fP
+999	continue
+	call \fBcfclose\fP (ier)
+	end
+
+C   \fIMARKINTERACTIVE -- Subroutine for processing the cursor loop.\fP
+	subroutine markInteractive ()
+	include 	"\fBcdlftn.inc\fP"
+	real		angle, rx, ry, txsize
+	integer		nx, ny, x, y, x2, y2, fill, size, color
+	integer		number, radius, xrad, yrad, nannuli, sep
+	character	key
+	character*64	cmd, str
+
+C  	\fIAllocate a 1024x1024 array for pixels. \fP
+	character	pix(1048576)
+
+C	\fI....Initialize the local parameters to use\fP
+
+C	\fIRead a cursor keystroke telling us what to do.\fP
+10 	call \fBcfreadCursor\fP (0, rx, ry, key, ier)
+
+C	\fIRound the real cursor position to integer pixel positions.\fP
+	    x = nint (rx + 0.5)
+	    y = nint (ry + 0.5)
+
+C	\fICheck the keystroke and take the appropriate action.\fP
+C	    \fIColon Commands\fP
+	    if (key .eq. ':') then
+C		\fIRead a three character command and value field and process the colon command\fP
+		read (*,'(A3, i4)') cmd, ival
+		if (cmd(1:3) .eq. 'ang') then
+		    angle = real (ival)
+		else if (cmd(1:3) .eq. 'col') then
+		    color = ival
+		else if (cmd(1:3) .eq. 'fil') then
+		    fill = ival
+\fI 			:
+			....and so on to set local variables
+			:\fR
+		else if (cmd(1:3) .eq. 'pri') then
+C		    \fIPrint contents of the current frame buffer\fP
+		    call \fBcfreadFrameBuffer\fP (pix, nx, ny, ier)
+		    call \fBcfprintPix\fP ("lpr", pix, nx, ny, 1, ier)
+		else if (cmd(1:3) .eq. 'sta') then
+			\fI....print out the status (value) of variables\fP
+	 	endif
+
+C	    \fIPoint Markers\fP
+	    else if (key .eq. 'p') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_PLUS, color, ier)
+	    else if (key .eq. 'x') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_CROSS, color, ier)
+	    else if (key .eq. '_') then
+		call \fBcfmarkPoint\fP (x, y, 1, size, M_HBLINE, color, ier)
+	    else if (key .eq. 'o') then
+C		\fIExample of a filled point marker \fP
+		call \fBcfmarkPoint\fP (x, y, 1, size, or(M_CIRCLE,fill), color, ier)
+\fI 			:
+			....and so on to set other types of point markers\fR
+
+C	    \fIOther Markers\fP
+	    else if (key .eq. 'b') then
+		print '("Hit another key to define the box ....")'
+ 		call \fBcfreadCursor\fP (0, rx, ry, key, ier)
+	    	x2 = nint (rx + 0.5)
+	    	y2 = nint (ry + 0.5)
+		call \fBcfmarkBox\fP (x, y, x2, y2, fill, color, ier)
+	    else if (key .eq. 'd') then
+		call \fBcfdeleteMark\fP (x, y, ier)
+	    else if (key .eq. 'e') then
+		call \fBcfmarkEllipse\fP (x, y, xrad, yrad, angle, fill, color, ier)
+            else if (key .eq. 't') then
+                print '("Text string:  ", $)'
+                read (*,'(A64)') str
+                call \fBcfmarkText\fP (x, y, str, txsize, angle, color, ier)
+\fI 			:
+			....and so on to set other types of markers\fR
+
+C	    \fIQuit\fP
+	    else if (key .eq. 'q') then
+		goto 998
+	    endif
+
+C	\fILoop back until we want to quit\fP
+	goto 10
+998	continue
+	end
+\fR
+.fi
+.ps +2
+.vs +2
+.in -0.5i
+.bp
+.NH
+SPP Interface Summary
+.LP
+.in 0.5i
+#include  "\fBcdlspp.h\fR"
+.in -0.5i
+
+.TS
+center;
+r l.
+\fBcdl_open\fR	(imtdev, ier)
+\fBcdl_displayPix\fR	(pix, nx, ny, bitpix, frame, fbconfig, zscale, ier)
+\fBcdl_readCursor\fR	(sample, x, y, wcs, key, ier)
+\fBcdl_setCursor\fR	(x, y, wcs, ier)
+\fBcdl_setWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcdl_getWCS\fR	(name, title, a, b, c, d, tx, ty, z1, z2, zt, ier)
+\fBcdl_setFrame\fR	(frame)
+\fBcdl_clearFrame\fR	(ier)
+\fBcdl_close\fR	()
+
+\fBcdl_displayIRAF\fR	(fname, band, frame, fbconfig, zscale, ier)
+\fBcdl_isIRAF\fR	(fname, isiraf)
+\fBcdl_readIRAF\fR	(fname, band, pix, nx, ny, bitpix, title, ier)
+
+\fBcdl_displayFITS\fR	(fname, frame, fbconfig, zscale, ier)
+\fBcdl_isFITS\fR	(fname, isfits)
+\fBcdl_readFITS\fR	(fname, pix, nx, ny, bitpix, title, ier)
+
+\fBcdl_computeZscale\fR	(pix, nx, ny, bitpix, z1, z2)
+\fBcdl_zscaleImage\fR	(pix, nx, ny, bitpix, z1, z2)
+
+\fBcdl_printPix\fR	(cmd, pix, nx, ny, annotate, ier)
+\fBcdl_printPixToFile\fR	(fname, pix, nx, ny, annotate, ier)
+
+\fBcdl_readImage\fR	(pix, nx, ny, ier)
+\fBcdl_readFrameBuffer\fR	(pix, nx, ny, ier)
+\fBcdl_readSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+\fBcdl_writeSubRaster\fR	(lx, ly, nx, ny, pix, ier)
+
+\fBcdl_selectFB\fR	(nx, ny, fb, w, h, nf, reset)
+\fBcdl_setFBConfig\fR	(configno)
+\fBcdl_getFBConfig\fR	(configno, w, h, nf)
+\fBcdl_lookupFBSize\fR	(configno, w, h, nf)
+
+\fBcdl_setZTrans\fR	(ztrans)
+\fBcdl_setZScale\fR	(z1, z2)
+\fBcdl_setSample\fR	(nsample)
+\fBcdl_setSampleLines\fR	(nlines)
+\fBcdl_setContrast\fR	(contrast)
+\fBcdl_setName\fR	(imname)
+\fBcdl_setTitle\fR	(imtitle)
+
+\fBcdl_getFrame\fR	(frame)
+\fBcdl_getZTrans\fR	(ztrans)
+\fBcdl_getZScale\fR	(z1, z2)
+\fBcdl_getSample\fR	(nsample)
+\fBcdl_getSampleLines\fR	(nlines)
+\fBcdl_getContrast\fR	(contrast)
+\fBcdl_getName\fR	(imname)
+\fBcdl_getTitle\fR	(imtitle)
+
+\fBcdl_mapFrame\fR	(frame, ier)
+\fBcdl_markCoordsFile\fR	(fname, type, size, color, label, ier)
+\fBcdl_markPoint\fR	(x, y, number, size, type, color, ier)
+\fBcdl_markPointLabel\fR	(x, y, label, size, type, color, ier)
+\fBcdl_markLine\fR	(xs, ys, xe, ye, color, ier)
+\fBcdl_markBox\fR	(lx, ly, ux, uy, fill, color, ier)
+\fBcdl_markPolygon\fR	(xarray, yarray, npts, fill, color, ier)
+\fBcdl_markPolyline\fR	(xarray, yarray, npts, color, ier)
+\fBcdl_markCircle\fR	(x, y, radius, fill, color, ier)
+\fBcdl_markCircAnnuli\fR	(x, y, radius, nannuli, sep, color, ier)
+\fBcdl_markEllipse\fR	(x, y, xrad, yrad, rotang, fill, color, ier)
+\fBcdl_markEllipAnnuli\fR	(x, y, xrad, yrad, ang, nannuli, sep, color, ier)
+\fBcdl_markText\fR	(x, y, str, size, angle, color, ier)
+\fBcdl_setFont\fR	(font)
+\fBcdl_setTextWidth\fR	(width)
+\fBcdl_setLineWidth\fR	(width)
+\fBcdl_setLineStyle\fR	(style)
+\fBcdl_deleteMark\fR	(x, y, ier)
+\fBcdl_clearOverlay\fR	(ier)
+\fBcdl_redrawOverlay\fR	(ier)
+\fBcdl_setDebug\fR	(level)
+.TE
diff --git a/vendor/x11iraf/cdl/doc/cdlref.ps b/vendor/x11iraf/cdl/doc/cdlref.ps
new file mode 100644
index 00000000..f192e0b1
--- /dev/null
+++ b/vendor/x11iraf/cdl/doc/cdlref.ps
@@ -0,0 +1,19799 @@
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+d \we} d \{e{ d ]Dew d ]Geu d ]Ieq m \wfK d \vfG d \vfC d \we? d \{e}
+d ]Dey d ]Ieu d ]Jeq d ]Jek d ]Ieh d ]Gef d ]Ced d \~ed d \yef d \vej
+d \teo d \ted d \vej m \seV m ]\es d ]oes d ]oew d ]me{ d ]ke} d ]fe?
+d ]ce? d ]^e} d ][ey d ]Yes d ]Yeo d ][ej d ]^ef d ]ced d ]fed d ]kef
+d ]oej m ]meu d ]mew d ]ke{ m ]\ey d ][eu d ][em d ]\ej m ]kes d ]key
+d ]je} d ]fe? m ]ce? d ]`e} d ]^e{ d ]\eu d ]\em d ]^eh d ]`ef d ]ced
+m ]WeV m ^AfI d ^Aem d ^Beh d ^Eef d ^Ied d ^Led d ^Pef d ^Rej m ^BfI
+d ^Bek d ^Eeh m ^AfI d ^EfM d ^Eek d ^Fef d ^Ied m ]{e? d ^Le? m ]{eV
+m Fwcf d Fycd d Fwcb d Fvcd d Fvcf d Fwcj d Fycl d F~cn d GDcn d GIcl
+d GJch d GJcb d GIc^ d GDc\ d F?c\ m GDcn d GGcl d GIch d GIcb d GGc^
+d GDc\ m GDc\ d GGcZ d GJcV d GLcS d GLcM d GJcI d GIcG d GDcE d F~cE
+d FycG d FwcI d FvcM d FvcO d FwcQ d FycO d FwcM m GIcX d GJcS d GJcM
+d GIcI d GGcG d GDcE m Ftbw m G\cf d G]cd d G\cb d GZcd d GZcf d G\cj
+d G]cl d Gbcn d Gicn d Gmcl d Gocj d Gpcf d Gpcb d Goc^ d GjcZ d GbcV
+d G_cU d G\cQ d GZcK d GZcE m Gicn d Glcl d Gmcj d Gocf d Gocb d Gmc^
+d GicZ d GbcV m GZcI d G\cK d G_cK d GgcG d GlcG d GocI d GpcK m G_cK
+d GgcE d GmcE d GocG d GpcK d GpcO m GYbw m G}c{ m G}bw m H\c{ m H\bw
+m FwbW d FybU d FwbS d FvbU d FvbW d Fwb[ d Fyb] d F~b^ d GDb^ d GIb]
+d GJbY d GJbS d GIbO d GDbM d F?bM m GDb^ d GGb] d GIbY d GIbS d GGbO
+d GDbM m GDbM d GGbK d GJbG d GLbC d GLa} d GJaz d GIax d GDav d F~av
+d Fyax d Fwaz d Fva} d Fva? d FwbA d Fya? d Fwa} m GIbI d GJbC d GJa}
+d GIaz d GGax d GDav m Ftah m G\bW d G]bU d G\bS d GZbU d GZbW d G\b[
+d G]b] d Gbb^ d Gib^ d Gmb] d GobY d GobS d GmbO d GibM d GdbM m Gib^
+d Glb] d GmbY d GmbS d GlbO d GibM m GibM d GlbK d GobG d GpbC d Gpa}
+d Goaz d Gmax d Giav d Gbav d G]ax d G\az d GZa} d GZa? d G\bA d G]a?
+d G\a} m GmbI d GobC d Goa} d Gmaz d Glax d Giav m GYah m G}bl m G}ah
+m H\bl m H\ah m ICb^ d I@b[ d ICbC d IFb[ d ICb^ m ICb[ d ICbO m ICaz
+d I@ax d ICav d IFax d ICaz m H{ah m FwaG d FyaE d FwaC d FvaE d FvaG
+d FwaK d FyaM d F~aO d GDaO d GIaM d GJaI d GJaC d GIa@ d GD`~ d F?`~
+m GDaO d GGaM d GIaI d GIaC d GGa@ 
+stroke
+m GGa@ d GD`~ m GD`~ d GG`| d GJ`x d GL`t d GL`n d GJ`j d GI`h d GD`f
+d F~`f d Fy`h d Fw`j d Fv`n d Fv`p d Fw`r d Fy`p d Fw`n m GI`z d GJ`t
+d GJ`n d GI`j d GG`h d GD`f m Ft`Y m GiaK d Gi`f m GjaO d Gj`f m GjaO
+d GY`r d Gr`r m Gd`f d Go`f m GY`Y m G}a] m G}`Y m H\a] m H\`Y m ICaB
+d I@a@ d IC`~ d IFa@ d ICaB m IC`f d I@`h d IC`j d IF`h d IF`d d IC`a
+d I@`_ m H{`Y m Fw_x d Fy_v d Fw_t d Fv_v d Fv_x d Fw_| d Fy_~ d F~`@
+d GD`@ d GI_~ d GJ_z d GJ_t d GI_p d GD_n d F?_n m GD`@ d GG_~ d GI_z
+d GI_t d GG_p d GD_n m GD_n d GG_l d GJ_i d GL_e d GL__ d GJ_[ d GI_Y
+d GD_W d F~_W d Fy_Y d Fw_[ d Fv__ d Fv_a d Fw_c d Fy_a d Fw__ m GI_j
+d GJ_e d GJ__ d GI_[ d GG_Y d GD_W m Ft_I m G]`@ d GZ_l m GZ_l d G]_p
+d Gb_r d Gg_r d Gl_p d Go_l d Gp_g d Gp_c d Go_] d Gl_Y d Gg_W d Gb_W
+d G]_Y d G\_[ d GZ__ d GZ_a d G\_c d G]_a d G\__ m Gg_r d Gj_p d Gm_l
+d Go_g d Go_c d Gm_] d Gj_Y d Gg_W m G]`@ d Gm`@ m G]_~ d Ge_~ d Gm`@
+m GY_I m G}`M m G}_I m H\`M m H\_I m II`@ d H~_I m IR`@ d IG_I m H~_j
+d IS_j m H}__ d IR__ m H{_I m Fw^i d Fy^g d Fw^e d Fv^g d Fv^i d Fw^m
+d Fy^o d F~^p d GD^p d GI^o d GJ^k d GJ^e d GI^a d GD^_ d F?^_ m GD^p
+d GG^o d GI^k d GI^e d GG^a d GD^_ m GD^_ d GG^] d GJ^Y d GL^U d GL^O
+d GJ^K d GI^J d GD^H d F~^H d Fy^J d Fw^K d Fv^O d Fv^Q d Fw^S d Fy^Q
+d Fw^O m GI^[ d GJ^U d GJ^O d GI^K d GG^J d GD^H m Ft]z m Gm^k d Gl^i
+d Gm^g d Go^i d Go^k d Gm^o d Gj^p d Ge^p d Ga^o d G]^k d G\^g d GZ^_
+d GZ^S d G\^M d G_^J d Gd^H d Gg^H d Gl^J d Go^M d Gp^S d Gp^U d Go^[
+d Gl^_ d Gg^a d Ge^a d Ga^_ d G]^[ d G\^U m Ge^p d Gb^o d G_^k d G]^g
+d G\^_ d G\^S d G]^M d Ga^J d Gd^H m Gg^H d Gj^J d Gm^M d Go^S d Go^U
+d Gm^[ d Gj^_ d Gg^a m GY]z m G}^~ m G}]z m H\^~ m H\]z m IE^x d IE^@
+m IK^x d IK^@ m IQ^k d IP^i d IQ^g d IS^i d IS^k d IP^o d IK^p d IE^p
+d I@^o d H}^k d H}^g d H~^c d I@^a d IC^_ d IL^[ d IP^Y d IS^U m H}^g
+d I@^c d IC^a d IL^] d IP^[ d IQ^Y d IS^U d IS^M d IP^J d IK^H d IE^H
+d I@^J d H}^M d H}^O d H~^Q d I@^O d H~^M m H{]z m Fw]Y d Fy]W d Fw]U
+d Fv]W d Fv]Y d Fw]] d Fy]_ d F~]a d GD]a d GI]_ d GJ][ d GJ]U d GI]R
+d GD]P d F?]P m GD]a d GG]_ d GI][ d GI]U d GG]R d GD]P m GD]P d GG]N
+d GJ]J d GL]F d GL]@ d GJ\| d GI\z d GD\x d F~\x d Fy\z d Fw\| d Fv]@
+d Fv]B d Fw]D d Fy]B d Fw]@ m GI]L d GJ]F d GJ]@ d GI\| d GG\z d GD\x
+m Ft\k m GZ]a d GZ]U m GZ]Y d G\]] d G_]a d Gb]a d Gj][ d Gm][ d Go]]
+d Gp]a m G\]] d G_]_ d Gb]_ d Gj][ m Gp]a d Gp][ d Go]U d Gi]L d Gg]H
+d Ge]B d Ge\x m Go]U d Gg]L d Ge]H d Gd]B d Gd\x m GY\k m G}]o m G}\k
+m H\]o m H\\k m IU]a d H|\x m IC]a d IF]] d IF]Y d IE]U d IB]S d H?]S
+d H|]W d H|][ d H~]_ d IA]a d IC]a d IF]_ d IJ]] d IN]] d IR]_ d IU]a
+m IP]F d IM]D d IK]@ d IK\| d IN\x d IQ\x d IT\z d IU\~ d IU]B d IR]F
+d IP]F m H{\k m Fw\J d Fy\H d Fw\F d Fv\H d Fv\J d Fw\N d Fy\P d F~\R
+d GD\R d GI\P d GJ\L d GJ\F d GI\B d GD\@ d F?\@ m GD\R d GG\P d GI\L
+d GI\F d GG\B d GD\@ m GD\@ d GG[~ d GJ[{ d GL[w d GL[q d GJ[m d GI[k
+d GD[i d F~[i d Fy[k d Fw[m d Fv[q d Fv[s d Fw[u d Fy[s d Fw[q m GI[|
+d GJ[w d GJ[q d GI[m d GG[k d GD[i m Ft[[ m Gb\R d G]\P d G\\L d G\\F
+d G]\B d Gb\@ d Gi\@ d Gm\B d Go\F d Go\L d Gm\P d Gi\R d Gb\R m Gb\R
+d G_\P d G]\L d G]\F d G_\B d Gb\@ m Gi\@ d Gl\B d Gm\F d Gm\L d Gl\P
+d Gi\R m Gb\@ d G][~ d G\[| d GZ[y d GZ[q d G\[m d G][k d Gb[i d Gi[i
+d Gm[k d Go[m d Gp[q d Gp[y d Go[| d Gm[~ d Gi\@ m Gb\@ d G_[~ d G][|
+d G\[y d G\[q d G][m d G_[k d Gb[i m Gi[i d Gl[k d Gm[m d Go[q d Go[y
+d Gm[| d Gl[~ d Gi\@ m GY[[ m G}\_ m G}[[ m H\\_ m H\[[ m IT\B d IS\@
+d IT[~ d IU\@ d IU\B d IT\D d IS\D d IR\B d IP[~ d IN[u d IK[o d IH[k
+d IF[i d IB[i d H~[k d H|[o d H|[u d H~[y d IF\@ d IH\D d IJ\H d IJ\L
+d IH\P d IF\R d IC\P d IB\L d IB\H d IC\B d IF[| d IL[o d IO[k d IS[i
+d IT[i d IU[k d IU[m m IB[i d H?[k d H~[o d H~[u d H?[y d IB[| m IB\H
+d IC\D d IN[o d IP[k d IS[i m H{[[ m FwZ{ d FyZy d FwZw d FvZy d FvZ{
+d FwZ? d Fy[A d F~[C d GD[C d GI[A d GJZ} d GJZw d GIZs d GDZq d F?Zq
+m GD[C d GG[A d GIZ} d GIZw d GGZs d GDZq m GDZq d GGZo d GJZk d GLZg
+d GLZa d GJZ^ d GIZ\ d GDZZ d F~ZZ d FyZ\ d FwZ^ d FvZa d FvZc d FwZe
+d FyZc d FwZa m GIZm d GJZg d GJZa d GIZ^ d GGZ\ d GDZZ m FtZL m GoZu
+d GmZo d GjZk d GeZi d GdZi d G_Zk d G\Zo d GZZu d GZZw d G\Z} d G_[A
+d Gd[C d Gg[C d Gl[A d GoZ} d GpZw d GpZk d GoZc d GmZ` d GjZ\ d GeZZ
+d GaZZ d G]Z\ d G\Z` d G\Za d G]Zc d G_Za d G]Z` m GdZi d GaZk d G]Zo
+d G\Zu d G\Zw d G]Z} 
+stroke
+m G]Z} d Ga[A d Gd[C m Gg[C d Gj[A d GmZ} d GoZw d GoZk d GmZc d GlZ`
+d GiZ\ d GeZZ m GYZL m G}[P m G}ZL m H\[P m H\ZL m ICZ? d I@[A d IC[C
+d IF[A d IFZ} d ICZy d I@Zw m H{ZL m GDYo d GDYJ m GEYs d GEYJ m GEYs
+d FtYV d GMYV m F?YJ d GJYJ m FtX} m GdYs d G_Yq d G\Yk d GZYb d GZY\
+d G\YR d G_YL d GdYJ d GgYJ d GlYL d GoYR d GpY\ d GpYb d GoYk d GlYq
+d GgYs d GdYs m GdYs d GaYq d G_Yo d G]Yk d G\Yb d G\Y\ d G]YR d G_YN
+d GaYL d GdYJ m GgYJ d GjYL d GlYN d GmYR d GoY\ d GoYb d GmYk d GlYo
+d GjYq d GgYs m GYX} m G}ZA m G}X} m H\ZA m H\X} m INY{ d IJYw d IEYq
+d IAYi d H?Y` d H?YX d IAYN d IEYF d IJYA d INX} m IJYw d IEYo d ICYi
+d IAY` d IAYX d ICYN d IEYH d IJYA m H{X} m GDX` d GDW{ m GEXd d GEW{
+m GEXd d FtXG d GMXG m F?W{ d GJW{ m FtWm m G_X\ d GbX^ d GgXd d GgW{
+m GeXb d GeW{ m G_W{ d GmW{ m GYWm m G}Xq m G}Wm m H\Xq m H\Wm m H}Xl
+d IAXh d IEXb d IJXZ d ILXP d ILXI d IJW? d IEWw d IAWq d H}Wm m IAXh
+d IEX` d IHXZ d IJXP d IJXI d IHW? d IEWy d IAWq m H{Wm m GDWQ d GDVl
+m GEWT d GEVl m GEWT d FtVw d GMVw m F?Vl d GJVl m FtV^ m G\WM d G]WK
+d G\WI d GZWK d GZWM d G\WQ d G]WS d GbWT d GiWT d GmWS d GoWQ d GpWM
+d GpWI d GoWE d GjWA d GbV} d G_V{ d G\Vw d GZVq d GZVl m GiWT d GlWS
+d GmWQ d GoWM d GoWI d GmWE d GiWA d GbV} m GZVp d G\Vq d G_Vq d GgVn
+d GlVn d GoVp d GpVq m G_Vq d GgVl d GmVl d GoVn d GpVq d GpVu m GYV^
+m G}Wb m G}V^ m H\Wb m H\V^ m H~WK d ISVp m ISWK d H~Vp m H{V^ m GDVA
+d GDU\ m GEVE d GEU\ m GEVE d FtUh d GMUh m F?U\ d GJU\ m FtUO m G\U}
+d G]U{ d G\Uy d GZU{ d GZU} d G\VA d G]VC d GbVE d GiVE d GmVC d GoU?
+d GoUy d GmUv d GiUt d GdUt m GiVE d GlVC d GmU? d GmUy d GlUv d GiUt
+m GiUt d GlUr d GoUn d GpUj d GpUd d GoU` d GmU^ d GiU\ d GbU\ d G]U^
+d G\U` d GZUd d GZUf d G\Uh d G]Uf d G\Ud m GmUp d GoUj d GoUd d GmU`
+d GlU^ d GiU\ m GYUO m G}VS m G}UO m H\VS m H\UO m IIU} d IIU\ m H~Un
+d ITUn m H~U\ d ITU\ m H{UO m GDTr d GDTM m GETv d GETM m GETv d FtTY
+d GMTY m F?TM d GJTM m FtS? m GiTr d GiTM m GjTv d GjTM m GjTv d GYTY
+d GrTY m GdTM d GoTM m GYS? m G}UC m G}S? m H\UC m H\S? m ITTU d IRTU
+d IOTW d ILT[ d IHTb d IGTd d IDTf d IBTf d H?Td d H~T` d H~T] d H?TY
+d IBTW d IDTW d IGTY d IHT[ d ILTb d IOTf d IRTh d ITTh m H{S? m GDSc
+d GDR~ m GESf d GER~ m GESf d FtSI d GMSI m F?R~ d GJR~ m FtRp m G]Sf
+d GZSS m GZSS d G]SW d GbSY d GgSY d GlSW d GoSS d GpSM d GpSI d GoSC
+d GlS@ d GgR~ d GbR~ d G]S@ d G\SB d GZSE d GZSG d G\SI d G]SG d G\SE
+m GgSY d GjSW d GmSS d GoSM d GoSI d GmSC d GjS@ d GgR~ m G]Sf d GmSf
+m G]Se d GeSe d GmSf m GYRp m G}St m G}Rp m H\St m H\Rp m IIS_ d IIR~
+m H~S_ d ITS_ m H~SO d ITSO m H{Rp m GDRS d GDQn m GERW d GEQn m GERW
+d FtQz d GMQz m F?Qn d GJQn m FtQa m GmRQ d GlRO d GmRM d GoRO d GoRQ
+d GmRU d GjRW d GeRW d GaRU d G]RQ d G\RM d GZRF d GZQz d G\Qt d G_Qp
+d GdQn d GgQn d GlQp d GoQt d GpQz d GpQ| d GoRB d GlRF d GgRH d GeRH
+d GaRF d G]RB d G\Q| m GeRW d GbRU d G_RQ d G]RM d G\RF d G\Qz d G]Qt
+d GaQp d GdQn m GgQn d GjQp d GmQt d GoQz d GoQ| d GmRB d GjRF d GgRH
+m GYQa m G}Re m G}Qa m H\Re m H\Qa m ICQr d I@Qp d ICQn d IFQp d ICQr
+m H{Qa m GDQD d GDP_ m GEQH d GEP_ m GEQH d FtPk d GMPk m F?P_ d GJP_
+m FtPQ m GZQH d GZP| m GZQ@ d G\QD d G_QH d GbQH d GjQB d GmQB d GoQD
+d GpQH m G\QD d G_QF d GbQF d GjQB m GpQH d GpQB d GoP| d GiPr d GgPo
+d GePi d GeP_ m GoP| d GgPr d GePo d GdPi d GdP_ m GYPQ m G}QU m G}PQ
+m H\QU m H\PQ m IIQB d IHQ@ d IIP~ d IJQ@ d IIQB m H~Pq d IUPq m IIPc
+d IHPa d IIP_ d IJPa d IIPc m H{PQ m GDOu d GDOP m GEOy d GEOP m GEOy
+d FtO[ d GMO[ m F?OP d GJOP m FtOB m GbOy d G]Ow d G\Os d G\Om d G]Oi
+d GbOg d GiOg d GmOi d GoOm d GoOs d GmOw d GiOy d GbOy m GbOy d G_Ow
+d G]Os d G]Om d G_Oi d GbOg m GiOg d GlOi d GmOm d GmOs d GlOw d GiOy
+m GbOg d G]Oe d G\Oc d GZO_ d GZOW d G\OT d G]OR d GbOP d GiOP d GmOR
+d GoOT d GpOW d GpO_ d GoOc d GmOe d GiOg m GbOg d G_Oe d G]Oc d G\O_
+d G\OW d G]OT d G_OR d GbOP m GiOP d GlOR d GmOT d GoOW d GoO_ d GmOc
+d GlOe d GiOg m GYOB m G}PF m G}OB m H\PF m H\OB m IFOy d IAOw d H~Oq
+d H}Og d H}Oa d H~OW d IAOR d IFOP d IIOP d INOR d IQOW d ISOa d ISOg
+d IQOq d INOw d IIOy d IFOy m IFOy d ICOw d IAOu d I@Oq d H~Og d H~Oa
+d I@OW d IAOT d ICOR d IFOP m IIOP d ILOR d INOT d IPOW d IQOa d IQOg
+d IPOq d INOu d ILOw d IIOy m H{OB m GDNe d GDN@ m GENi d GEN@ m GENi
+d FtNL d GMNL m F?N@ d GJN@ m FtMs m GoN[ d GmNV d GjNR d GeNP d GdNP
+d G_NR d G\NV d GZN[ d GZN] d G\Nc d G_Ng d GdNi d GgNi d GlNg d GoNc
+d GpN] d GpNR d GoNJ d GmNF d GjNB d GeN@ d GaN@ d G]NB d G\NF d G\NH
+d G]NJ d G_NH d G]NF m GdNP d GaNR d G]NV d G\N[ d G\N] d G]Nc d GaNg
+d GdNi m GgNi d GjNg d GmNc d GoN] d GoNR d GmNJ d GlNF d GiNB d GeN@
+m GYMs m G}Nw m G}Ms m H\Nw m H\Ms m IANa d IENc d IINi d IIN@ m IHNg
+d IHN@ m IAN@ d IPN@ m H{Ms m FyMZ d FvMF m FvMF d FyMJ d F~ML d GBML
+d GGMJ d GJMF d GLMA d GLL} d GJLw d GGLs d GBLq d F~Lq d FyLs d FwLu
+d FvLy d FvL{ d FwL} d FyL{ d FwLy m GBML d GEMJ d GIMF d GJMA d GJL}
+d GILw d GELs d GBLq m FyMZ d GIMZ m FyMX d GAMX d GIMZ m FtLc m GdMZ
+d G_MX d G\MR 
+stroke
+m G\MR d GZMH d GZMC d G\Ly d G_Ls d GdLq d GgLq d GlLs d GoLy d GpMC
+d GpMH d GoMR d GlMX d GgMZ d GdMZ m GdMZ d GaMX d G_MV d G]MR d G\MH
+d G\MC d G]Ly d G_Lu d GaLs d GdLq m GgLq d GjLs d GlLu d GmLy d GoMC
+d GoMH d GmMR d GlMV d GjMX d GgMZ m GYLc m G}Mg m G}Lc m H\Mg m H\Lc
+m H~MR d I@MP d H~MN d H}MP d H}MR d H~MV d I@MX d IEMZ d IKMZ d IPMX
+d IQMV d ISMR d ISMN d IQMJ d ILMF d IEMC d IAMA d H~L} d H}Lw d H}Lq
+m IKMZ d INMX d IPMV d IQMR d IQMN d IPMJ d IKMF d IEMC m H}Lu d H~Lw
+d IALw d IILs d INLs d IQLu d ISLw m IALw d IILq d IPLq d IQLs d ISLw
+d ISL{ m H{Lc m FyLK d FvKw m FvKw d FyK{ d F~K} d GBK} d GGK{ d GJKw
+d GLKq d GLKm d GJKg d GGKd d GBKb d F~Kb d FyKd d FwKf d FvKi d FvKk
+d FwKm d FyKk d FwKi m GBK} d GEK{ d GIKw d GJKq d GJKm d GIKg d GEKd
+d GBKb m FyLK d GILK m FyLI d GALI d GILK m FtKT m G_LC d GbLE d GgLK
+d GgKb m GeLI d GeKb m G_Kb d GmKb m GYKT m G}LX m G}KT m H\LX m H\KT
+m H~LC d I@LA d H~K? d H}LA d H}LC d H~LG d I@LI d IELK d IKLK d IPLI
+d IQLE d IQK? d IPK{ d IKKy d IFKy m IKLK d INLI d IPLE d IPK? d INK{
+d IKKy m IKKy d INKw d IQKs d ISKo d ISKi d IQKf d IPKd d IKKb d IEKb
+d I@Kd d H~Kf d H}Ki d H}Kk d H~Km d I@Kk d H~Ki m IPKu d IQKo d IQKi
+d IPKf d INKd d IKKb m H{KT m FyJ{ d FvJh m FvJh d FyJl d F~Jn d GBJn
+d GGJl d GJJh d GLJb d GLJ^ d GJJX d GGJT d GBJR d F~JR d FyJT d FwJV
+d FvJZ d FvJ\ d FwJ^ d FyJ\ d FwJZ m GBJn d GEJl d GIJh d GJJb d GJJ^
+d GIJX d GEJT d GBJR m FyJ{ d GIJ{ m FyJy d GAJy d GIJ{ m FtJE m G\Js
+d G]Jq d G\Jo d GZJq d GZJs d G\Jw d G]Jy d GbJ{ d GiJ{ d GmJy d GoJw
+d GpJs d GpJo d GoJl d GjJh d GbJd d G_Jb d G\J^ d GZJX d GZJR m GiJ{
+d GlJy d GmJw d GoJs d GoJo d GmJl d GiJh d GbJd m GZJV d G\JX d G_JX
+d GgJT d GlJT d GoJV d GpJX m G_JX d GgJR d GmJR d GoJT d GpJX d GpJ\
+m GYJE m G}KI m G}JE m H\KI m H\JE m IKJw d IKJR m ILJ{ d ILJR m ILJ{
+d H{J^ d ITJ^ m IFJR d IQJR m H{JE m FyIl d FvIX m FvIX d FyI\ d F~I^
+d GBI^ d GGI\ d GJIX d GLIS d GLIO d GJII d GGIE d GBIC d F~IC d FyIE
+d FwIG d FvIK d FvIM d FwIO d FyIM d FwIK m GBI^ d GEI\ d GIIX d GJIS
+d GJIO d GIII d GEIE d GBIC m FyIl d GIIl m FyIj d GAIj d GIIl m FtHu
+m G\Id d G]Ib d G\I` d GZIb d GZId d G\Ih d G]Ij d GbIl d GiIl d GmIj
+d GoIf d GoI` d GmI\ d GiIZ d GdIZ m GiIl d GlIj d GmIf d GmI` d GlI\
+d GiIZ m GiIZ d GlIX d GoIT d GpIQ d GpIK d GoIG d GmIE d GiIC d GbIC
+d G]IE d G\IG d GZIK d GZIM d G\IO d G]IM d G\IK m GmIV d GoIQ d GoIK
+d GmIG d GlIE d GiIC m GYHu m G}Iy m G}Hu m H\Iy m H\Hu m I@Il d H}IX
+m H}IX d I@I\ d IEI^ d III^ d INI\ d IQIX d ISIS d ISIO d IQII d INIE
+d IIIC d IEIC d I@IE d H~IG d H}IK d H}IM d H~IO d I@IM d H~IK m III^
+d ILI\ d IPIX d IQIS d IQIO d IPII d ILIE d IIIC m I@Il d IPIl m I@Ij
+d IHIj d IPIl m H{Hu m FyH\ d FvHI m FvHI d FyHM d F~HO d GBHO d GGHM
+d GJHI d GLHC d GLG? d GJGy d GGGv d GBGt d F~Gt d FyGv d FwGx d FvG{
+d FvG} d FwG? d FyG} d FwG{ m GBHO d GEHM d GIHI d GJHC d GJG? d GIGy
+d GEGv d GBGt m FyH\ d GIH\ m FyH[ d GAH[ d GIH\ m FtGf m GiHY d GiGt
+m GjH\ d GjGt m GjH\ d GYG? d GrG? m GdGt d GoGt m GYGf m G}Hj m G}Gf
+m H\Hj m H\Gf m IPHW d INHU d IPHS d IQHU d IQHW d IPH[ d ILH\ d IHH\
+d ICH[ d I@HW d H~HS d H}HK d H}G? d H~Gy d IAGv d IFGt d IIGt d INGv
+d IQGy d ISG? d ISHA d IQHG d INHK d IIHM d IHHM d ICHK d I@HG d H~HA
+m IHH\ d IEH[ d IAHW d I@HS d H~HK d H~G? d I@Gy d ICGv d IFGt m IIGt
+d ILGv d IPGy d IQG? d IQHA d IPHG d ILHK d IIHM m H{Gf m FyGM d FvFz
+m FvFz d FyF~ d F~G@ d GBG@ d GGF~ d GJFz d GLFt d GLFp d GJFj d GGFf
+d GBFd d F~Fd d FyFf d FwFh d FvFl d FvFn d FwFp d FyFn d FwFl m GBG@
+d GEF~ d GIFz d GJFt d GJFp d GIFj d GEFf d GBFd m FyGM d GIGM m FyGK
+d GAGK d GIGM m FtFW m G]GM d GZFz m GZFz d G]F~ d GbG@ d GgG@ d GlF~
+d GoFz d GpFt d GpFp d GoFj d GlFf d GgFd d GbFd d G]Ff d G\Fh d GZFl
+d GZFn d G\Fp d G]Fn d G\Fl m GgG@ d GjF~ d GmFz d GoFt d GoFp d GmFj
+d GjFf d GgFd m G]GM d GmGM m G]GK d GeGK d GmGM m GYFW m G}G[ m G}FW
+m H\G[ m H\FW m H}GM d H}GA m H}GE d H~GI d IAGM d IEGM d ILGG d IPGG
+d IQGI d ISGM m H~GI d IAGK d IEGK d ILGG m ISGM d ISGG d IQGA d IKFx
+d IIFt d IHFn d IHFd m IQGA d IIFx d IHFt d IFFn d IFFd m H{FW m RTcn
+d RQcZ m RQcZ d RTc^ d RYc` d R^c` d Rbc^ d RfcZ d RgcU d RgcQ d RfcK
+d RbcG d R^cE d RYcE d RTcG d RRcI d RQcM d RQcO d RRcQ d RTcO d RRcM
+m R^c` d Rac^ d RdcZ d RfcU d RfcQ d RdcK d RacG d R^cE m RTcn d Rdcn
+m RTcl d R\cl d Rdcn m RObw m SIch d SGcf d SIcd d SJcf d SJch d SIcl
+d SEcn d SAcn d R|cl d Rych d Rwcd d Rvc\ d RvcQ d RwcK d RzcG d R?cE
+d SBcE d SGcG d SJcK d SLcQ 
+stroke
+m SLcQ d SLcS d SJcX d SGc\ d SBc^ d SAc^ d R|c\ d RycX d RwcS m SAcn
+d R~cl d Rzch d Rycd d Rwc\ d RwcQ d RycK d R|cG d R?cE m SBcE d SEcG
+d SIcK d SJcQ d SJcS d SIcX d SEc\ d SBc^ m Rtbw m SYc{ m SYbw m Sxc{
+m Sxbw m T`cn d T[cl d TZch d TZcb d T[c^ d T`c\ d Tfc\ d Tkc^ d Tmcb
+d Tmch d Tkcl d Tfcn d T`cn m T`cn d T]cl d T[ch d T[cb d T]c^ d T`c\
+m Tfc\ d Tic^ d Tkcb d Tkch d Ticl d Tfcn m T`c\ d T[cZ d TZcX d TXcU
+d TXcM d TZcI d T[cG d T`cE d TfcE d TkcG d TmcI d TncM d TncU d TmcX
+d TkcZ d Tfc\ m T`c\ d T]cZ d T[cX d TZcU d TZcM d T[cI d T]cG d T`cE
+m TfcE d TicG d TkcI d TmcM d TmcU d TkcX d TicZ d Tfc\ m TVbw m RTb^
+d RQbK m RQbK d RTbO d RYbQ d R^bQ d RbbO d RfbK d RgbE d RgbA d Rfa{
+d Rbax d R^av d RYav d RTax d RRaz d RQa} d RQa? d RRbA d RTa? d RRa}
+m R^bQ d RabO d RdbK d RfbE d RfbA d Rda{ d Raax d R^av m RTb^ d Rdb^
+m RTb] d R\b] d Rdb^ m ROah m Rvb^ d RvbS m RvbW d Rwb[ d Rzb^ d R~b^
+d SEbY d SIbY d SJb[ d SLb^ m Rwb[ d Rzb] d R~b] d SEbY m SLb^ d SLbY
+d SJbS d SDbI d SBbE d SAa? d SAav m SJbS d SBbI d SAbE d R?a? d R?av
+m Rtah m SYbl m SYah m Sxbl m Sxah m TmbQ d TkbK d ThbG d TcbE d TbbE
+d T]bG d TZbK d TXbQ d TXbS d TZbY d T]b] d Tbb^ d Teb^ d Tib] d TmbY
+d TnbS d TnbG d Tma? d Tka{ d Thax d Tcav d T^av d T[ax d TZa{ d TZa}
+d T[a? d T]a} d T[a{ m TbbE d T^bG d T[bK d TZbQ d TZbS d T[bY d T^b]
+d Tbb^ m Teb^ d Thb] d TkbY d TmbS d TmbG d Tka? d Tia{ d Tfax d Tcav
+m TVah m RTaO d RQ`| m RQ`| d RTa@ d RYaB d R^aB d Rba@ d Rf`| d Rg`v
+d Rg`r d Rf`l d Rb`h d R^`f d RY`f d RT`h d RR`j d RQ`n d RQ`p d RR`r
+d RT`p d RR`n m R^aB d Raa@ d Rd`| d Rf`v d Rf`r d Rd`l d Ra`h d R^`f
+m RTaO d RdaO m RTaM d R\aM d RdaO m RO`Y m R~aO d RyaM d RwaI d RwaC
+d Rya@ d R~`~ d SD`~ d SIa@ d SJaC d SJaI d SIaM d SDaO d R~aO m R~aO
+d RzaM d RyaI d RyaC d Rza@ d R~`~ m SD`~ d SGa@ d SIaC d SIaI d SGaM
+d SDaO m R~`~ d Ry`| d Rw`z d Rv`v d Rv`n d Rw`j d Ry`h d R~`f d SD`f
+d SI`h d SJ`j d SL`n d SL`v d SJ`z d SI`| d SD`~ m R~`~ d Rz`| d Ry`z
+d Rw`v d Rw`n d Ry`j d Rz`h d R~`f m SD`f d SG`h d SI`j d SJ`n d SJ`v
+d SI`z d SG`| d SD`~ m Rt`Y m SYa] m SY`Y m Sxa] m Sx`Y m TpaU d ToaS
+d TpaQ d TraS d TraU d TpaW d TnaW d TkaU d ThaQ d TgaM d TeaG d Tda@
+d Ta`h d T``a d T_`] m TjaS d ThaO d TgaG d Td`p d Tc`h d Ta`b d T``_
+d T]`[ d T[`Y d TX`Y d TV`[ d TV`] d TX`_ d TY`] d TX`[ m TV`Y m RT`@
+d RQ_l m RQ_l d RT_p d RY_r d R^_r d Rb_p d Rf_l d Rg_g d Rg_c d Rf_]
+d Rb_Y d R^_W d RY_W d RT_Y d RR_[ d RQ__ d RQ_a d RR_c d RT_a d RR__
+m R^_r d Ra_p d Rd_l d Rf_g d Rf_c d Rd_] d Ra_Y d R^_W m RT`@ d Rd`@
+m RT_~ d R\_~ d Rd`@ m RO_I m SJ_r d SI_l d SE_i d SA_g d R?_g d Rz_i
+d Rw_l d Rv_r d Rv_t d Rw_z d Rz_~ d R?`@ d SB`@ d SG_~ d SJ_z d SL_t
+d SL_i d SJ_a d SI_] d SE_Y d SA_W d R|_W d Ry_Y d Rw_] d Rw__ d Ry_a
+d Rz__ d Ry_] m R?_g d R|_i d Ry_l d Rw_r d Rw_t d Ry_z d R|_~ d R?`@
+m SB`@ d SE_~ d SI_z d SJ_t d SJ_i d SI_a d SG_] d SD_Y d SA_W m Rt_I
+m SY`M m SY_I m Sx`M m Sx_I m T^_r d T\_p d T^_n d Ta_p d T^_r m T^_W
+d T\_Y d T^_[ d Ta_Y d Ta_U d T^_Q d T\_O m TV_I m Rd^k d Rb^i d Rd^g
+d Rf^i d Rf^k d Rd^o d Ra^p d R\^p d RW^o d RT^k d RR^g d RQ^_ d RQ^S
+d RR^M d RV^J d RZ^H d R^^H d Rb^J d Rf^M d Rg^S d Rg^U d Rf^[ d Rb^_
+d R^^a d R\^a d RW^_ d RT^[ d RR^U m R\^p d RY^o d RV^k d RT^g d RR^_
+d RR^S d RT^M d RW^J d RZ^H m R^^H d Ra^J d Rd^M d Rf^S d Rf^U d Rd^[
+d Ra^_ d R^^a m RO]z m R?^p d Rz^o d Rw^i d Rv^_ d Rv^Y d Rw^O d Rz^J
+d R?^H d SB^H d SG^J d SJ^O d SL^Y d SL^_ d SJ^i d SG^o d SB^p d R?^p
+m R?^p d R|^o d Rz^m d Ry^i d Rw^_ d Rw^Y d Ry^O d Rz^K d R|^J d R?^H
+m SB^H d SE^J d SG^K d SI^O d SJ^Y d SJ^_ d SI^i d SG^m d SE^o d SB^p
+m Rt]z m SY^~ m SY]z m Sx^~ m Sx]z m To^p d TY^c d To^U m TY^Q d To^Q
+m TY^H d To^H m TV]z m Rd][ d Rb]Y d Rd]W d Rf]Y d Rf][ d Rd]_ d Ra]a
+d R\]a d RW]_ d RT][ d RR]W d RQ]P d RQ]D d RR\~ d RV\z d RZ\x d R^\x
+d Rb\z d Rf\~ d Rg]D d Rg]F d Rf]L d Rb]P d R^]R d R\]R d RW]P d RT]L
+d RR]F m R\]a d RY]_ d RV][ d RT]W d RR]P d RR]D d RT\~ d RW\z d RZ\x
+m R^\x d Ra\z d Rd\~ d Rf]D d Rf]F d Rd]L d Ra]P d R^]R m RO\k m Rz]Y
+d R~][ d SB]a d SB\x m SA]_ d SA\x m Rz\x d SI\x m Rt\k m SY]o m SY\k
+m Sx]o m Sx\k m TY]S d Tp]S m TY]J d Tp]J m TY]@ d Tp]@ m TV\k m Rd\L
+d Rb\J d Rd\H d Rf\J d Rf\L d Rd\P d Ra\R d R\\R d RW\P d RT\L d RR\H
+d RQ\@ d RQ[u d RR[o d RV[k d RZ[i d R^[i d Rb[k d Rf[o d Rg[u d Rg[w
+d Rf[| d Rb\@ d R^\B d R\\B d RW\@ d RT[| d RR[w m R\\R d RY\P 
+stroke
+m RY\P d RV\L d RT\H d RR\@ d RR[u d RT[o d RW[k d RZ[i m R^[i d Ra[k
+d Rd[o d Rf[u d Rf[w d Rd[| d Ra\@ d R^\B m RO[[ m Rw\J d Ry\H d Rw\F
+d Rv\H d Rv\J d Rw\N d Ry\P d R~\R d SD\R d SI\P d SJ\N d SL\J d SL\F
+d SJ\B d SE[~ d R~[{ d Rz[y d Rw[u d Rv[o d Rv[i m SD\R d SG\P d SI\N
+d SJ\J d SJ\F d SI\B d SD[~ d R~[{ m Rv[m d Rw[o d Rz[o d SB[k d SG[k
+d SJ[m d SL[o m Rz[o d SB[i d SI[i d SJ[k d SL[o d SL[s m Rt[[ m SY\_
+m SY[[ m Sx\_ m Sx[[ m TY\R d To\D d TY[w m TY[s d To[s m TY[i d To[i
+m TV[[ m RdZ} d RbZ{ d RdZy d RfZ{ d RfZ} d Rd[A d Ra[C d R\[C d RW[A
+d RTZ} d RRZy d RQZq d RQZe d RRZ` d RVZ\ d RZZZ d R^ZZ d RbZ\ d RfZ`
+d RgZe d RgZg d RfZm d RbZq d R^Zs d R\Zs d RWZq d RTZm d RRZg m R\[C
+d RY[A d RVZ} d RTZy d RRZq d RRZe d RTZ` d RWZ\ d RZZZ m R^ZZ d RaZ\
+d RdZ` d RfZe d RfZg d RdZm d RaZq d R^Zs m ROZL m RwZ{ d RyZy d RwZw
+d RvZy d RvZ{ d RwZ? d Ry[A d R~[C d SD[C d SI[A d SJZ} d SJZw d SIZs
+d SDZq d R?Zq m SD[C d SG[A d SIZ} d SIZw d SGZs d SDZq m SDZq d SGZo
+d SJZk d SLZg d SLZa d SJZ^ d SIZ\ d SDZZ d R~ZZ d RyZ\ d RwZ^ d RvZa
+d RvZc d RwZe d RyZc d RwZa m SIZm d SJZg d SJZa d SIZ^ d SGZ\ d SDZZ
+m RtZL m SY[P m SYZL m Sx[P m SxZL m TmZ} d T[ZZ m TYZq d TpZq m TYZe
+d TpZe m TVZL m RdYm d RbYk d RdYi d RfYk d RfYm d RdYq d RaYs d R\Ys
+d RWYq d RTYm d RRYi d RQYb d RQYV d RRYP d RVYL d RZYJ d R^YJ d RbYL
+d RfYP d RgYV d RgYX d RfY^ d RbYb d R^Yd d R\Yd d RWYb d RTY^ d RRYX
+m R\Ys d RYYq d RVYm d RTYi d RRYb d RRYV d RTYP d RWYL d RZYJ m R^YJ
+d RaYL d RdYP d RfYV d RfYX d RdY^ d RaYb d R^Yd m ROX} m SDYo d SDYJ
+m SEYs d SEYJ m SEYs d RtYV d SMYV m R?YJ d SJYJ m RtX} m SYZA m SYX}
+m SxZA m SxX} m TjYd d TiYg d TgYi d TcYi d T`Yg d T_Ye d T^Y` d T^YZ
+d T_YV d TbYT d TeYT d ThYV d TiYZ m TcYi d T`Ye d T_Y` d T_YZ d T`YV
+d TbYT m TjYi d TiYZ d TiYV d TlYT d TnYT d TpYX d TrY^ d TrYb d TpYg
+d ToYk d TmYo d TjYq d TgYs d TcYs d T_Yq d T]Yo d TZYk d TYYg d TXYb
+d TXY\ d TYYV d TZYR d T]YN d T_YL d TcYJ d TgYJ d TjYL d TmYN d TnYP
+m TlYi d TjYZ d TjYV d TlYT m TVX} m RdX^ d RbX\ d RdXZ d RfX\ d RfX^
+d RdXb d RaXd d R\Xd d RWXb d RTX^ d RRXZ d RQXR d RQXG d RRXA d RVW}
+d RZW{ d R^W{ d RbW} d RfXA d RgXG d RgXI d RfXN d RbXR d R^XT d R\XT
+d RWXR d RTXN d RRXI m R\Xd d RYXb d RVX^ d RTXZ d RRXR d RRXG d RTXA
+d RWW} d RZW{ m R^W{ d RaW} d RdXA d RfXG d RfXI d RdXN d RaXR d R^XT
+m ROWm m RyXd d RvXP m RvXP d RyXT d R~XV d SBXV d SGXT d SJXP d SLXK
+d SLXG d SJXA d SGW} d SBW{ d R~W{ d RyW} d RwW? d RvXC d RvXE d RwXG
+d RyXE d RwXC m SBXV d SEXT d SIXP d SJXK d SJXG d SIXA d SEW} d SBW{
+m RyXd d SIXd m RyXb d SAXb d SIXd m RtWm m SYXq m SYWm m SxXq m SxWm
+m TbX^ d TXW{ m TeX^ d TnW{ m TcX^ d TmW{ m T[XG d TiXG m TVW{ d T^W{
+m ThW{ d TqW{ m TbXl d T^Xj d T]Xf d T]Xb d T^X^ d TbX\ d TeX\ d ThX^
+d TiXb d TiXf d ThXj d TeXl d TbXl m TVWm m RdWO d RbWM d RdWK d RfWM
+d RfWO d RdWS d RaWT d R\WT d RWWS d RTWO d RRWK d RQWC d RQVw d RRVq
+d RVVn d RZVl d R^Vl d RbVn d RfVq d RgVw d RgVy d RfV? d RbWC d R^WE
+d R\WE d RWWC d RTV? d RRVy m R\WT d RYWS d RVWO d RTWK d RRWC d RRVw
+d RTVq d RWVn d RZVl m R^Vl d RaVn d RdVq d RfVw d RfVy d RdV? d RaWC
+d R^WE m ROV^ m SIWO d SGWM d SIWK d SJWM d SJWO d SIWS d SEWT d SAWT
+d R|WS d RyWO d RwWK d RvWC d RvVw d RwVq d RzVn d R?Vl d SBVl d SGVn
+d SJVq d SLVw d SLVy d SJV? d SGWC d SBWE d SAWE d R|WC d RyV? d RwVy
+m SAWT d R~WS d RzWO d RyWK d RwWC d RwVw d RyVq d R|Vn d R?Vl m SBVl
+d SEVn d SIVq d SJVw d SJVy d SIV? d SEWC d SBWE m RtV^ m SYWb m SYV^
+m SxWb m SxV^ m TqV{ d TpVw d TmVu d TjVu d ThVw d TfVy d TbWA d TaWC
+d T^WE d T\WE d TYWC d TXV? d TXV{ d TYVw d T\Vu d T^Vu d TaVw d TbVy
+d TfWA d ThWC d TjWE d TmWE d TpWC d TqV? d TqV{ m TVV^ m RdU? d RbU}
+d RdU{ d RfU} d RfU? d RdVC d RaVE d R\VE d RWVC d RTU? d RRU{ d RQUt
+d RQUh d RRUb d RVU^ d RZU\ d R^U\ d RbU^ d RfUb d RgUh d RgUj d RfUp
+d RbUt d R^Uv d R\Uv d RWUt d RTUp d RRUj m R\VE d RYVC d RVU? d RTU{
+d RRUt d RRUh d RTUb d RWU^ d RZU\ m R^U\ d RaU^ d RdUb d RfUh d RfUj
+d RdUp d RaUt d R^Uv m ROUO m RvVE d RvUy m RvU} d RwVA d RzVE d R~VE
+d SEU? d SIU? d SJVA d SLVE m RwVA d RzVC d R~VC d SEU? m SLVE d SLU?
+d SJUy d SDUp d SBUl d SAUf d SAU\ m SJUy d SBUp d SAUl d R?Uf d R?U\
+m RtUO m SYVS m SYUO m SxVS m SxUO m TVVS m TVUO m RdTp d RbTn d RdTl
+d RfTn d RfTp d RdTt d RaTv d R\Tv d RWTt d RTTp d RRTl d RQTd d RQTY
+d RRTS d RVTO d RZTM d R^TM d RbTO d RfTS d RgTY 
+stroke
+m RgTY d RgT[ d RfT` d RbTd d R^Tf d R\Tf d RWTd d RTT` d RRT[ m R\Tv
+d RYTt d RVTp d RTTl d RRTd d RRTY d RTTS d RWTO d RZTM m R^TM d RaTO
+d RdTS d RfTY d RfT[ d RdT` d RaTd d R^Tf m ROS? m R~Tv d RyTt d RwTp
+d RwTj d RyTf d R~Td d SDTd d SITf d SJTj d SJTp d SITt d SDTv d R~Tv
+m R~Tv d RzTt d RyTp d RyTj d RzTf d R~Td m SDTd d SGTf d SITj d SITp
+d SGTt d SDTv m R~Td d RyTb d RwT` d RvT] d RvTU d RwTQ d RyTO d R~TM
+d SDTM d SITO d SJTQ d SLTU d SLT] d SJT` d SITb d SDTd m R~Td d RzTb
+d RyT` d RwT] d RwTU d RyTQ d RzTO d R~TM m SDTM d SGTO d SITQ d SJTU
+d SJT] d SIT` d SGTb d SDTd m RtS? m SYUC m SYS? m SxUC m SxS? m TcTv
+d TVTM m TcTv d TpTM m TcTp d TnTM m TXTO d TnTO m TVTM d TpTM m TVS?
+m RdSa d RbS_ d RdS] d RfS_ d RfSa d RdSe d RaSf d R\Sf d RWSe d RTSa
+d RRS] d RQSU d RQSI d RRSC d RVS@ d RZR~ d R^R~ d RbS@ d RfSC d RgSI
+d RgSK d RfSQ d RbSU d R^SW d R\SW d RWSU d RTSQ d RRSK m R\Sf d RYSe
+d RVSa d RTS] d RRSU d RRSI d RTSC d RWS@ d RZR~ m R^R~ d RaS@ d RdSC
+d RfSI d RfSK d RdSQ d RaSU d R^SW m RORp m SJSY d SISS d SESO d SASM
+d R?SM d RzSO d RwSS d RvSY d RvS[ d RwSa d RzSe d R?Sf d SBSf d SGSe
+d SJSa d SLS[ d SLSO d SJSG d SISC d SES@ d SAR~ d R|R~ d RyS@ d RwSC
+d RwSE d RySG d RzSE d RySC m R?SM d R|SO d RySS d RwSY d RwS[ d RySa
+d R|Se d R?Sf m SBSf d SESe d SISa d SJS[ d SJSO d SISG d SGSC d SDS@
+d SAR~ m RtRp m SYSt m SYRp m SxSt m SxRp m ToS_ d TeS_ d T`S] d T]S[
+d T[SW d TYSQ d TYSM d T[SG d T]SC d T`SB d TeS@ d ToS@ m TYSO d TjSO
+m TVRp m RQRW d RQRK m RQRO d RRRS d RVRW d RYRW d RaRQ d RdRQ d RfRS
+d RgRW m RRRS d RVRU d RYRU d RaRQ m RgRW d RgRQ d RfRK d R_RB d R^Q~
+d R\Qx d R\Qn m RfRK d R^RB d R\Q~ d RZQx d RZQn m ROQa m R?RW d RzRU
+d RwRO d RvRF d RvR@ d RwQv d RzQp d R?Qn d SBQn d SGQp d SJQv d SLR@
+d SLRF d SJRO d SGRU d SBRW d R?RW m R?RW d R|RU d RzRS d RyRO d RwRF
+d RwR@ d RyQv d RzQr d R|Qp d R?Qn m SBQn d SEQp d SGQr d SIQv d SJR@
+d SJRF d SIRO d SGRS d SERU d SBRW m RtQa m SYRe m SYQa m SxRe m SxQa
+m TcRW d TcQn m TdRW d TdQn m T`RM d T[RK d TYRJ d TXRF d TXR@ d TYQ|
+d T[Qz d T`Qx d TgQx d TlQz d TmQ| d ToR@ d ToRF d TmRJ d TlRK d TgRM
+d T`RM m T`RM d T\RK d T[RJ d TYRF d TYR@ d T[Q| d T\Qz d T`Qx m TgQx
+d TjQz d TlQ| d TmR@ d TmRF d TlRJ d TjRK d TgRM m T^RW d TiRW m T^Qn
+d TiQn m TVQa m RQQH d RQP| m RQQ@ d RRQD d RVQH d RYQH d RaQB d RdQB
+d RfQD d RgQH m RRQD d RVQF d RYQF d RaQB m RgQH d RgQB d RfP| d R_Pr
+d R^Po d R\Pi d R\P_ m RfP| d R^Pr d R\Po d RZPi d RZP_ m ROPQ m RzQ@
+d R~QB d SBQH d SBP_ m SAQF d SAP_ m RzP_ d SIP_ m RtPQ m SYQU m SYPQ
+m SxQU m SxPQ m T\QH d T\P_ m T]QH d T]P_ m TVQH d TpQH d TpP| d ToQH
+m TVP_ d TbP_ m TVPQ m RQOy d RQOm m RQOq d RROu d RVOy d RYOy d RaOs
+d RdOs d RfOu d RgOy m RROu d RVOw d RYOw d RaOs m RgOy d RgOs d RfOm
+d R_Oc d R^O_ d R\OY d R\OP m RfOm d R^Oc d R\O_ d RZOY d RZOP m ROOB
+m RwOq d RyOo d RwOm d RvOo d RvOq d RwOu d RyOw d R~Oy d SDOy d SIOw
+d SJOu d SLOq d SLOm d SJOi d SEOe d R~Oa d RzO_ d RwO[ d RvOV d RvOP
+m SDOy d SGOw d SIOu d SJOq d SJOm d SIOi d SDOe d R~Oa m RvOT d RwOV
+d RzOV d SBOR d SGOR d SJOT d SLOV m RzOV d SBOP d SIOP d SJOR d SLOV
+d SLOY m RtOB m SYPF m SYOB m SxPF m SxOB m TdP@ d TYOB m TmP@ d TcOB
+m TYOg d ToOg m TXO[ d TmO[ m TVOB m RQNi d RQN] m RQNa d RRNe d RVNi
+d RYNi d RaNc d RdNc d RfNe d RgNi m RRNe d RVNg d RYNg d RaNc m RgNi
+d RgNc d RfN] d R_NT d R^NP d R\NJ d R\N@ m RfN] d R^NT d R\NP d RZNJ
+d RZN@ m ROMs m RwNa d RyN_ d RwN] d RvN_ d RvNa d RwNe d RyNg d R~Ni
+d SDNi d SINg d SJNc d SJN] d SINZ d SDNX d R?NX m SDNi d SGNg d SINc
+d SIN] d SGNZ d SDNX m SDNX d SGNV d SJNR d SLNN d SLNH d SJND d SINB
+d SDN@ d R~N@ d RyNB d RwND d RvNH d RvNJ d RwNL d RyNJ d RwNH m SINT
+d SJNN d SJNH d SIND d SGNB d SDN@ m RtMs m SYNw m SYMs m SxNw m SxMs
+m T[Nq d T[Ms m TgNq d TgMs m TVMs m RQMZ d RQMN m RQMR d RRMV d RVMZ
+d RYMZ d RaMT d RdMT d RfMV d RgMZ m RRMV d RVMX d RYMX d RaMT m RgMZ
+d RgMT d RfMN d R_MD d R^MA d R\L{ d R\Lq m RfMN d R^MD d R\MA d RZL{
+d RZLq m ROLc m SDMV d SDLq m SEMZ d SELq m SEMZ d RtL} d SML} m R?Lq
+d SJLq m RtLc m SYMg m SYLc m SxMg m SxLc m TVMZ d TcLq m TXMZ d TcLu
+m TpMZ d TcLq m TVMZ d TpMZ m TXMX d TnMX m TVLc m RQLK d RQK? m RQLC
+d RRLG d RVLK d RYLK d RaLE d RdLE d RfLG d RgLK m RRLG d RVLI d RYLI
+d RaLE m RgLK d RgLE d RfK? d R_Ku d R^Kq d R\Kk d R\Kb m RfK? d R^Ku
+d R\Kq d RZKk d RZKb m ROKT m RyLK d RvKw m RvKw d RyK{ d R~K} d SBK}
+d SGK{ d SJKw d SLKq d SLKm d SJKg d SGKd d SBKb d R~Kb d RyKd d RwKf
+d RvKi d RvKk d RwKm d RyKk d RwKi m SBK} d SEK{ d SIKw d SJKq d SJKm
+d SIKg d SEKd d SBKb m RyLK d SILK m RyLI d SALI d SILK m RtKT m SYLX
+m SYKT m SxLX m SxKT m TVLX m TVKT m RQJ{ d RQJo m RQJs d RRJw d RVJ{
+d RYJ{ d RaJu d RdJu d RfJw d RgJ{ m RRJw d RVJy d RYJy d RaJu m RgJ{
+d RgJu 
+stroke
+m RgJu d RfJo d R_Jf d R^Jb d R\J\ d R\JR m RfJo d R^Jf d R\Jb d RZJ\
+d RZJR m ROJE m SIJu d SGJs d SIJq d SJJs d SJJu d SIJy d SEJ{ d SAJ{
+d R|Jy d RyJu d RwJq d RvJj d RvJ^ d RwJX d RzJT d R?JR d SBJR d SGJT
+d SJJX d SLJ^ d SLJ` d SJJf d SGJj d SBJl d SAJl d R|Jj d RyJf d RwJ`
+m SAJ{ d R~Jy d RzJu d RyJq d RwJj d RwJ^ d RyJX d R|JT d R?JR m SBJR
+d SEJT d SIJX d SJJ^ d SJJ` d SIJf d SEJj d SBJl m RtJE m SYKI m SYJE
+m SxKI m SxJE m TcJ{ d TXJR m TcJ{ d TnJR m TcJu d TmJR m TVJR d T^JR
+m ThJR d TqJR m TVJE m RQIl d RQI` m RQId d RRIh d RVIl d RYIl d RaIf
+d RdIf d RfIh d RgIl m RRIh d RVIj d RYIj d RaIf m RgIl d RgIf d RfI`
+d R_IV d R^IS d R\IM d R\IC m RfI` d R^IV d R\IS d RZIM d RZIC m ROHu
+m RvIl d RvI` m RvId d RwIh d RzIl d R~Il d SEIf d SIIf d SJIh d SLIl
+m RwIh d RzIj d R~Ij d SEIf m SLIl d SLIf d SJI` d SDIV d SBIS d SAIM
+d SAIC m SJI` d SBIV d SAIS d R?IM d R?IC m RtHu m SYIy m SYHu m SxIy
+m SxHu m T^I` d TbIf d TeI` m TXIZ d TbId d TkIZ m TbId d TbIC m TVHu
+m RQH\ d RQHQ m RQHU d RRHY d RVH\ d RYH\ d RaHW d RdHW d RfHY d RgH\
+m RRHY d RVH[ d RYH[ d RaHW m RgH\ d RgHW d RfHQ d R_HG d R^HC d R\G}
+d R\Gt m RfHQ d R^HG d R\HC d RZG} d RZGt m ROGf m R~H\ d RyH[ d RwHW
+d RwHQ d RyHM d R~HK d SDHK d SIHM d SJHQ d SJHW d SIH[ d SDH\ d R~H\
+m R~H\ d RzH[ d RyHW d RyHQ d RzHM d R~HK m SDHK d SGHM d SIHQ d SIHW
+d SGH[ d SDH\ m R~HK d RyHI d RwHG d RvHC d RvG{ d RwGx d RyGv d R~Gt
+d SDGt d SIGv d SJGx d SLG{ d SLHC d SJHG d SIHI d SDHK m R~HK d RzHI
+d RyHG d RwHC d RwG{ d RyGx d RzGv d R~Gt m SDGt d SGGv d SIGx d SJG{
+d SJHC d SIHG d SGHI d SDHK m RtGf m SYHj m SYGf m SxHj m SxGf m T^Gy
+d TbGt d TeGy m TXG? d TbGv d TkG? m TbHW d TbGv m TVGf m RQGM d RQGA
+m RQGE d RRGI d RVGM d RYGM d RaGG d RdGG d RfGI d RgGM m RRGI d RVGK
+d RYGK d RaGG m RgGM d RgGG d RfGA d R_Fx d R^Ft d R\Fn d R\Fd m RfGA
+d R^Fx d R\Ft d RZFn d RZFd m ROFW m SJG@ d SIFz d SEFv d SAFt d R?Ft
+d RzFv d RwFz d RvG@ d RvGA d RwGG d RzGK d R?GM d SBGM d SGGK d SJGG
+d SLGA d SLFv d SJFn d SIFj d SEFf d SAFd d R|Fd d RyFf d RwFj d RwFl
+d RyFn d RzFl d RyFj m R?Ft d R|Fv d RyFz d RwG@ d RwGA d RyGG d R|GK
+d R?GM m SBGM d SEGK d SIGG d SJGA d SJFv d SIFn d SGFj d SDFf d SAFd
+m RtFW m SYG[ m SYFW m SxG[ m SxFW m TbGM d T^GK d T[GG d TYGC d TXF|
+d TXFv d TYFn d T[Fj d T^Ff d TbFd d TeFd d TiFf d TlFj d TnFn d ToFv
+d ToF| d TnGC d TlGG d TiGK d TeGM d TbGM m TbGM d T_GK d T\GG d T[GC
+d TYF| d TYFv d T[Fn d T\Fj d T_Ff d TbFd m TeFd d ThFf d TkFj d TlFn
+d TnFv d TnF| d TlGC d TkGG d ThGK d TeGM m TVFW m ]Kc{ m ]Kbw m ]scn
+d ]ocl d ]mch d ]mcb d ]oc^ d ]sc\ d ]zc\ d ]~c^ d ^@cb d ^@ch d ]~cl
+d ]zcn d ]scn m ]scn d ]pcl d ]och d ]ocb d ]pc^ d ]sc\ m ]zc\ d ]}c^
+d ]~cb d ]~ch d ]}cl d ]zcn m ]sc\ d ]ocZ d ]mcX d ]kcU d ]kcM d ]mcI
+d ]ocG d ]scE d ]zcE d ]~cG d ^@cI d ^BcM d ^BcU d ^@cX d ]~cZ d ]zc\
+m ]sc\ d ]pcZ d ]ocX d ]mcU d ]mcM d ]ocI d ]pcG d ]scE m ]zcE d ]}cG
+d ]~cI d ^@cM d ^@cU d ]~cX d ]}cZ d ]zc\ m ]jbw m ^Zcn d ^Ucl d ^Rcf
+d ^Pc\ d ^PcV d ^RcM d ^UcG d ^ZcE d ^]cE d ^bcG d ^ecM d ^fcV d ^fc\
+d ^ecf d ^bcl d ^]cn d ^Zcn m ^Zcn d ^Vcl d ^Ucj d ^Scf d ^Rc\ d ^RcV
+d ^ScM d ^UcI d ^VcG d ^ZcE m ^]cE d ^`cG d ^bcI d ^ccM d ^ecV d ^ec\
+d ^ccf d ^bcj d ^`cl d ^]cn m ^Obw m ^sc{ m ^sbw m _Rc{ m _Rbw m _ucn
+d _ucE m _vcn d _vcE m `Gcn d `GcE m `Hcn d `HcE m _qcn d `Lcn m _qcE
+d _zcE m `CcE d `LcE m _qbw m ]Kbl m ]Kah m ]sb^ d ]ob] d ]mbY d ]mbS
+d ]obO d ]sbM d ]zbM d ]~bO d ^@bS d ^@bY d ]~b] d ]zb^ d ]sb^ m ]sb^
+d ]pb] d ]obY d ]obS d ]pbO d ]sbM m ]zbM d ]}bO d ]~bS d ]~bY d ]}b]
+d ]zb^ m ]sbM d ]obK d ]mbI d ]kbE d ]ka} d ]maz d ]oax d ]sav d ]zav
+d ]~ax d ^@az d ^Ba} d ^BbE d ^@bI d ]~bK d ]zbM m ]sbM d ]pbK d ]obI
+d ]mbE d ]ma} d ]oaz d ]pax d ]sav m ]zav d ]}ax d ]~az d ^@a} d ^@bE
+d ]~bI d ]}bK d ]zbM m ]jah m ^UbW d ^XbY d ^]b^ d ^]av m ^[b] d ^[av
+m ^Uav d ^cav m ^Oah m ^sbl m ^sah m _Rbl m _Rah m _}b^ d _xb] d _ubY
+d _tbU d _rbM d _rbG d _ta? d _ua{ d _xax d _}av d `@av d `Dax d `Ga{
+d `Ha? d `JbG d `JbM d `HbU d `GbY d `Db] d `@b^ d _}b^ m _}b^ d _zb]
+d _wbY d _ubU d _tbM d _tbG d _ua? d _wa{ d _zax d _}av m `@av d `Cax
+d `Fa{ d `Ga? d `HbG d `HbM d `GbU d `FbY d `Cb] d `@b^ m _zbQ d _zbC
+m `CbQ d `CbC m _zbK d `CbK m _zbI d `CbI m _qah m ]Ka] m ]K`Y m ]saO
+d ]oaM d ]maI d ]maC d ]oa@ d ]s`~ d ]z`~ d ]~a@ d ^@aC d ^@aI d ]~aM
+d ]zaO d ]saO m ]saO d ]paM d ]oaI d ]oaC d ]pa@ d ]s`~ m ]z`~ d ]}a@
+d ]~aC d ]~aI d ]}aM d ]zaO m ]s`~ d ]o`| d ]m`z d ]k`v d ]k`n d ]m`j
+d ]o`h d ]s`f d ]z`f d ]~`h d ^@`j d ^B`n d ^B`v d ^@`z d ]~`| d ]z`~
+m ]s`~ d ]p`| d ]o`z d ]m`v d ]m`n d ]o`j 
+stroke
+m ]o`j d ]p`h d ]s`f m ]z`f d ]}`h d ]~`j d ^@`n d ^@`v d ]~`z d ]}`|
+d ]z`~ m ]j`Y m ^RaG d ^SaE d ^RaC d ^PaE d ^PaG d ^RaK d ^SaM d ^XaO
+d ^^aO d ^caM d ^eaK d ^faG d ^faC d ^ea@ d ^``| d ^X`x d ^U`v d ^R`r
+d ^P`l d ^P`f m ^^aO d ^baM d ^caK d ^eaG d ^eaC d ^ca@ d ^^`| d ^X`x
+m ^P`j d ^R`l d ^U`l d ^]`h d ^b`h d ^e`j d ^f`l m ^U`l d ^]`f d ^c`f
+d ^e`h d ^f`l d ^f`p m ^O`Y m ^sa] m ^s`Y m _Ra] m _R`Y m `KaO d _r`f
+m _yaO d _|aK d _|aG d _zaC d _xaB d _uaB d _raE d _raI d _taM d _vaO
+d _yaO d _|aM d `@aK d `DaK d `HaM d `KaO m `E`t d `C`r d `A`n d `A`j
+d `D`f d `G`f d `I`h d `K`l d `K`p d `H`t d `E`t m _q`Y m ]K`M m ]K_I
+m ]s`@ d ]o_~ d ]m_z d ]m_t d ]o_p d ]s_n d ]z_n d ]~_p d ^@_t d ^@_z
+d ]~_~ d ]z`@ d ]s`@ m ]s`@ d ]p_~ d ]o_z d ]o_t d ]p_p d ]s_n m ]z_n
+d ]}_p d ]~_t d ]~_z d ]}_~ d ]z`@ m ]s_n d ]o_l d ]m_j d ]k_g d ]k__
+d ]m_[ d ]o_Y d ]s_W d ]z_W d ]~_Y d ^@_[ d ^B__ d ^B_g d ^@_j d ]~_l
+d ]z_n m ]s_n d ]p_l d ]o_j d ]m_g d ]m__ d ]o_[ d ]p_Y d ]s_W m ]z_W
+d ]}_Y d ]~_[ d ^@__ d ^@_g d ]~_j d ]}_l d ]z_n m ]j_I m ^R_x d ^S_v
+d ^R_t d ^P_v d ^P_x d ^R_| d ^S_~ d ^X`@ d ^^`@ d ^c_~ d ^e_z d ^e_t
+d ^c_p d ^^_n d ^Z_n m ^^`@ d ^b_~ d ^c_z d ^c_t d ^b_p d ^^_n m ^^_n
+d ^b_l d ^e_i d ^f_e d ^f__ d ^e_[ d ^c_Y d ^^_W d ^X_W d ^S_Y d ^R_[
+d ^P__ d ^P_a d ^R_c d ^S_a d ^R__ m ^c_j d ^e_e d ^e__ d ^c_[ d ^b_Y
+d ^^_W m ^O_I m ^s`M m ^s_I m _R`M m _R_I m _r`@ d _}_l d _q_W m _q`@
+d _|_l m _q`@ d `H`@ d `I_t d `F`@ m _r_Y d `F_Y m _q_W d `H_W d `I_c
+d `F_W m _q_I m ]K^~ m ]K]z m ]s^p d ]o^o d ]m^k d ]m^e d ]o^a d ]s^_
+d ]z^_ d ]~^a d ^@^e d ^@^k d ]~^o d ]z^p d ]s^p m ]s^p d ]p^o d ]o^k
+d ]o^e d ]p^a d ]s^_ m ]z^_ d ]}^a d ]~^e d ]~^k d ]}^o d ]z^p m ]s^_
+d ]o^] d ]m^[ d ]k^W d ]k^O d ]m^K d ]o^J d ]s^H d ]z^H d ]~^J d ^@^K
+d ^B^O d ^B^W d ^@^[ d ]~^] d ]z^_ m ]s^_ d ]p^] d ]o^[ d ]m^W d ]m^O
+d ]o^K d ]p^J d ]s^H m ]z^H d ]}^J d ]~^K d ^@^O d ^@^W d ]~^[ d ]}^]
+d ]z^_ m ]j]z m ^^^m d ^^^H m ^`^p d ^`^H m ^`^p d ^O^S d ^h^S m ^Z^H
+d ^e^H m ^O]z m ^s^~ m ^s]z m _R^~ m _R]z m _u^x d _u]z m `B^x d `B]z
+m _q]z m ]K]o m ]K\k m ]s]a d ]o]_ d ]m][ d ]m]U d ]o]R d ]s]P d ]z]P
+d ]~]R d ^@]U d ^@][ d ]~]_ d ]z]a d ]s]a m ]s]a d ]p]_ d ]o][ d ]o]U
+d ]p]R d ]s]P m ]z]P d ]}]R d ]~]U d ]~][ d ]}]_ d ]z]a m ]s]P d ]o]N
+d ]m]L d ]k]H d ]k]@ d ]m\| d ]o\z d ]s\x d ]z\x d ]~\z d ^@\| d ^B]@
+d ^B]H d ^@]L d ]~]N d ]z]P m ]s]P d ]p]N d ]o]L d ]m]H d ]m]@ d ]o\|
+d ]p\z d ]s\x m ]z\x d ]}\z d ]~\| d ^@]@ d ^@]H d ]~]L d ]}]N d ]z]P
+m ]j\k m ^S]a d ^P]N m ^P]N d ^S]R d ^X]S d ^]]S d ^b]R d ^e]N d ^f]H
+d ^f]D d ^e\~ d ^b\z d ^]\x d ^X\x d ^S\z d ^R\| d ^P]@ d ^P]B d ^R]D
+d ^S]B d ^R]@ m ^]]S d ^`]R d ^c]N d ^e]H d ^e]D d ^c\~ d ^`\z d ^]\x
+m ^S]a d ^c]a m ^S]_ d ^[]_ d ^c]a m ^O\k m ^s]o m ^s\k m _R]o m _R\k
+m _q]W d _q][ d _s]_ d _t]a d _x]a d _y]_ d _{][ d _|]S d _|\x m _q][
+d _t]_ d _x]_ d _{][ m `J]W d `J][ d `H]_ d `F]a d `C]a d `A]_ d `@][
+d _~]S d _~\x m `J][ d `F]_ d `C]_ d `@][ m _x\x d `C\x m _q\k m ]K\_
+m ]K[[ m ]s\R d ]o\P d ]m\L d ]m\F d ]o\B d ]s\@ d ]z\@ d ]~\B d ^@\F
+d ^@\L d ]~\P d ]z\R d ]s\R m ]s\R d ]p\P d ]o\L d ]o\F d ]p\B d ]s\@
+m ]z\@ d ]}\B d ]~\F d ]~\L d ]}\P d ]z\R m ]s\@ d ]o[~ d ]m[| d ]k[y
+d ]k[q d ]m[m d ]o[k d ]s[i d ]z[i d ]~[k d ^@[m d ^B[q d ^B[y d ^@[|
+d ]~[~ d ]z\@ m ]s\@ d ]p[~ d ]o[| d ]m[y d ]m[q d ]o[m d ]p[k d ]s[i
+m ]z[i d ]}[k d ]~[m d ^@[q d ^@[y d ]~[| d ]}[~ d ]z\@ m ]j[[ m ^c\L
+d ^b\J d ^c\H d ^e\J d ^e\L d ^c\P d ^`\R d ^[\R d ^V\P d ^S\L d ^R\H
+d ^P\@ d ^P[u d ^R[o d ^U[k d ^Z[i d ^][i d ^b[k d ^e[o d ^f[u d ^f[w
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+stroke
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+stroke
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+d isP_ m ilP_ d i{P_ 
+stroke
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+d Fz]B d Fz]@ d Fy\~ d Fw\~ m GI]J d GJ]F d GJ]@ d GI\| m GB]P d GE]N
+d GG]L d GI]F d GI]@ d GG\z d GD\x m Fw]B d Fw]@ d Fy]@ d Fy]B d Fw]B
+m Ft\k m GZ]a d GZ]U m Gp]a d Gp][ d Go]U d Gi]L d Gg]H d Ge]@ d Ge\x
+m Gg]J d Ge]F d Gd]@ d Gd\x m Go]U d Gg]L d Gd]F d Gb]@ d Gb\x d Ge\x
+m GZ]Y d G\]] d G_]a d Gb]a d Gj][ d Gm][ d Go]] d Gp]a m G]]] d G_]_
+d Gb]_ d Ge]] m GZ]Y d G\][ d G_]] d Gb]] d Gj][ m GY\k m G}]o m G}\k
+m H\]o m H\\k m H{]o m H{\k m IZ]o m IZ\k m Iy]o m Iy\k m Jr]a d JY\x
+m J`]a d Jc]] d Jc]Y d Ja]U d J^]S d J\]S d JY]W d JY][ d JZ]_ d J]]a
+d J`]a d Jc]_ d Jg]] d Jk]] d Jo]_ d Jr]a m Jl]F d Ji]D d Jh]@ d Jh\|
+d Jk\x d Jn\x d Jp\z d Jr\~ d Jr]B d Jo]F d Jl]F m JX\k m Fw\J d Fw\H
+d Fy\H d Fy\J d Fw\J m Fw\L d Fy\L d Fz\J d Fz\H d Fy\F d Fw\F d Fv\H
+d Fv\J d Fw\N d Fy\P d F~\R d GD\R d GI\P d GJ\L d GJ\F d GI\B d GD\@
+m GG\P d GI\L d GI\F d GG\B m GB\R d GE\P d GG\L d GG\F d GE\B d GB\@
+m F?\@ d GD\@ d GG[~ d GJ[{ d GL[w 
+stroke
+m GL[w d GL[q d GJ[m d GI[k d GD[i d F~[i d Fy[k d Fw[m d Fv[q d Fv[s
+d Fw[u d Fy[u d Fz[s d Fz[q d Fy[o d Fw[o m GI[{ d GJ[w d GJ[q d GI[m
+m GB\@ d GE[~ d GG[| d GI[w d GI[q d GG[k d GD[i m Fw[s d Fw[q d Fy[q
+d Fy[s d Fw[s m Ft[[ m Gb\R d G]\P d G\\L d G\\F d G]\B d Gb\@ d Gi\@
+d Gm\B d Go\F d Go\L d Gm\P d Gi\R d Gb\R m G_\P d G]\L d G]\F d G_\B
+m Gl\B d Gm\F d Gm\L d Gl\P m Gb\R d Ga\P d G_\L d G_\F d Ga\B d Gb\@
+m Gi\@ d Gj\B d Gl\F d Gl\L d Gj\P d Gi\R m Gb\@ d G][~ d G\[| d GZ[y
+d GZ[q d G\[m d G][k d Gb[i d Gi[i d Gm[k d Go[m d Gp[q d Gp[y d Go[|
+d Gm[~ d Gi\@ m G][| d G\[y d G\[q d G][m m Gm[m d Go[q d Go[y d Gm[|
+m Gb\@ d G_[~ d G][y d G][q d G_[k d Gb[i m Gi[i d Gl[k d Gm[q d Gm[y
+d Gl[~ d Gi\@ m GY[[ m G}\_ m G}[[ m H\\_ m H\[[ m H{\_ m H{[[ m IZ\_
+m IZ[[ m Iy\_ m Iy[[ m Jq\@ d Jq\B d Jp\B d Jp[~ d Js[~ d Js\B d Jq\D
+d Jp\D d Jo\B d Jm[~ d Jk[u d Jh[o d Jf[k d Jc[i d J^[i d J[[k d JZ[o
+d JZ[u d J[[y d Jc\@ d Jf\D d Jg\H d Jg\L d Jf\P d Jc\R d Ja\P d J_\L
+d J_\F d Ja\@ d Jc[{ d Jh[q d Jl[k d Jo[i d Jq[i d Js[m d Js[o m J][k
+d J[[o d J[[u d J][y d J^[{ m Jf\D d Jg\L m Jg\H d Jf\P m Ja\P d J_\H
+m Ja\B d Jc[| d Jh[s d Jl[m d Jo[k m Ja[i d J^[k d J][o d J][u d J^[y
+d Jc\@ m J_\L d Ja\D d Jd[| d Jj[s d Jm[m d Jp[k d Jq[k d Js[m m JX[[
+m FwZ{ d FwZy d FyZy d FyZ{ d FwZ{ m FwZ} d FyZ} d FzZ{ d FzZy d FyZw
+d FwZw d FvZy d FvZ{ d FwZ? d Fy[A d F~[C d GD[C d GI[A d GJZ} d GJZw
+d GIZs d GDZq m GG[A d GIZ} d GIZw d GGZs m GB[C d GE[A d GGZ} d GGZw
+d GEZs d GBZq m F?Zq d GDZq d GGZo d GJZk d GLZg d GLZa d GJZ^ d GIZ\
+d GDZZ d F~ZZ d FyZ\ d FwZ^ d FvZa d FvZc d FwZe d FyZe d FzZc d FzZa
+d FyZ` d FwZ` m GIZk d GJZg d GJZa d GIZ^ m GBZq d GEZo d GGZm d GIZg
+d GIZa d GGZ\ d GDZZ m FwZc d FwZa d FyZa d FyZc d FwZc m FtZL m G]Za
+d G]Z` d G_Z` d G_Za d G]Za m GmZq d GlZm d GjZk d GgZi d GdZi d G_Zk
+d G\Zo d GZZu d GZZw d G\Z} d G_[A d Gd[C d Gg[C d Gl[A d GoZ} d GpZw
+d GpZk d GoZc d GmZ` d GjZ\ d GeZZ d GaZZ d G]Z\ d G\Z` d G\Za d G]Zc
+d G_Zc d GaZa d GaZ` d G_Z^ d G]Z^ m G]Zo d G\Zs d G\Zy d G]Z} m GlZ?
+d GmZ} d GoZw d GoZk d GmZc d GlZ` m GdZi d GaZk d G_Zm d G]Zs d G]Zy
+d G_Z? d Ga[A d Gd[C m Gg[C d Gj[A d GlZ} d GmZw d GmZi d GlZa d GjZ^
+d GiZ\ d GeZZ m GYZL m G}[P m G}ZL m H\[P m H\ZL m H{[P m H{ZL m IZ[P
+m IZZL m Iy[P m IyZL m JdZ? d JbZ} d J_Z} d J]Z? d J][A d J_[C d Jb[C
+d Jd[A d JdZ{ d JbZw d J]Zu m J_[A d J_Z? d JbZ? d Jb[A d J_[A m JbZ}
+d JdZ{ m JdZ? d JbZw m JXZL m GBYm d GBYJ m GDYo d GDYL m GEYs d GEYJ
+m GEYs d FtYV d GMYV m F~YJ d GJYJ m GBYL d F?YJ m GBYN d GAYJ m GEYN
+d GGYJ m GEYL d GIYJ m FtX} m GdYs d G_Yq d G\Yk d GZYb d GZY\ d G\YR
+d G_YL d GdYJ d GgYJ d GlYL d GoYR d GpY\ d GpYb d GoYk d GlYq d GgYs
+d GdYs m G_Yo d G]Yk d G\Yd d G\YZ d G]YR d G_YN m GlYN d GmYR d GoYZ
+d GoYd d GmYk d GlYo m GdYs d GaYq d G_Ym d G]Yd d G]YZ d G_YP d GaYL
+d GdYJ m GgYJ d GjYL d GlYP d GmYZ d GmYd d GlYm d GjYq d GgYs m GYX}
+m G}ZA m G}X} m H\ZA m H\X} m H{ZA m H{X} m IZZA m IZX} m IyZA m IyX}
+m JhY{ d JdYw d J`Yq d J\Yi d JZY` d JZYX d J\YN d J`YF d JdYA d JhX}
+m J`Yo d J^Yi d J\Yb d J\YV d J^YN d J`YH m JdYw d JbYs d J`Ym d J^Yb
+d J^YV d J`YJ d JbYE d JdYA m JXX} m GBX^ d GBW{ m GDX` d GDW} m GEXd
+d GEW{ m GEXd d FtXG d GMXG m F~W{ d GJW{ m GBW} d F?W{ m GBW? d GAW{
+m GEW? d GGW{ m GEW} d GIW{ m FtWm m GdX` d GdW{ m GeX` d GeW} m GgXd
+d GgW{ m GgXd d GbX^ d G_X\ m G]W{ d GmW{ m GdW} d GaW{ m GdW? d GbW{
+m GgW? d GiW{ m GgW} d GjW{ m GYWm m G}Xq m G}Wm m H\Xq m H\Wm m H{Xq
+m H{Wm m IZXq m IZWm m IyXq m IyWm m J\Xl d J`Xh d JdXb d JhXZ d JjXP
+d JjXI d JhW? d JdWw d J`Wq d J\Wm m JdX` d JfXZ d JhXR d JhXG d JfW?
+d JdWy m J`Xh d JbXd d JdX^ d JfXR d JfXG d JdW{ d JbWu d J`Wq m JXWm
+m GBWO d GBVl m GDWQ d GDVn m GEWT d GEVl m GEWT d FtVw d GMVw m F~Vl
+d GJVl m GBVn d F?Vl m GBVp d GAVl m GEVp d GGVl m GEVn d GIVl m FtV^
+m G\WM d G\WK d G]WK d G]WM d G\WM m G\WO d G]WO d G_WM d G_WK d G]WI
+d G\WI d GZWK d GZWM d G\WQ d G]WS d GbWT d GiWT d GmWS d GoWQ d GpWM
+d GpWI d GoWE d GjWA d GbV} d G_V{ d G\Vw d GZVq d GZVl m GmWQ d GoWM
+d GoWI d GmWE m GiWT d GlWS d GmWM d GmWI d GlWE d GiWA d GbV} m GZVp
+d G\Vq d G_Vq d GgVp d GmVp d GpVq m G_Vq d GgVn d GmVn d GoVp m G_Vq
+d GgVl d GmVl d GoVn d GpVq d GpVu m GYV^ m G}Wb m G}V^ m H\Wb m H\V^
+m H{Wb m H{V^ m IZWb m IZV^ m IyWb m IyV^ m JcWT d JaWS d JeV? d JcV}
+m JcWT d JcV} m JcWT d JeWS d JaV? d JcV} m JZWO d J[WO d JkWC d JlWC
+m JZWO d JlWC m JZWO d JZWM d JlWE d JlWC m JlWO d JkWO d J[WC d JZWC
+m JlWO d JZWC m JlWO d JlWM d JZWE d JZWC m JXV^ m GBU? d GBU\ m GDVA
+d GDU^ m GEVE d GEU\ m GEVE d FtUh d GMUh m F~U\ d GJU\ m GBU^ d F?U\
+m GBU` d GAU\ m GEU` d GGU\ m GEU^ d GIU\ m FtUO m G\U} d G\U{ d G]U{
+d G]U} d G\U} m G\U? d G]U? d G_U} d G_U{ d G]Uy d G\Uy d GZU{ d GZU}
+d G\VA d G]VC d GbVE d GiVE d GmVC d GoU? d GoUy d GmUv d GiUt m GlVC
+d GmU? d GmUy d GlUv m GgVE d GjVC d GlU? d GlUy d GjUv d GgUt m GdUt
+d GiUt d GlUr d GoUn d GpUj d GpUd d GoU` 
+stroke
+m GoU` d GmU^ d GiU\ d GbU\ d G]U^ d G\U` d GZUd d GZUf d G\Uh d G]Uh
+d G_Uf d G_Ud d G]Ub d G\Ub m GmUn d GoUj d GoUd d GmU` m GgUt d GjUr
+d GlUp d GmUj d GmUd d GlU^ d GiU\ m G\Uf d G\Ud d G]Ud d G]Uf d G\Uf
+m GYUO m G}VS m G}UO m H\VS m H\UO m H{VS m H{UO m IZVS m IZUO m IyVS
+m IyUO m JeU? d JeU^ d JfU^ m JeU? d JfU? d JfU^ m JZUp d JqUp d JqUn
+m JZUp d JZUn d JqUn m JXUO m GBTp d GBTM m GDTr d GDTO m GETv d GETM
+m GETv d FtTY d GMTY m F~TM d GJTM m GBTO d F?TM m GBTQ d GATM m GETQ
+d GGTM m GETO d GITM m FtS? m GgTp d GgTM m GiTr d GiTO m GjTv d GjTM
+m GjTv d GYTY d GrTY m GbTM d GoTM m GgTO d GdTM m GgTQ d GeTM m GjTQ
+d GlTM m GjTO d GmTM m GYS? m G}UC m G}S? m H\UC m H\S? m H{UC m H{S?
+m IZUC m IZS? m IyUC m IyS? m JdTO d JbTM d J_TM d J]TO d J]TQ d J_TS
+d JbTS d JdTQ d JdTK d JbTG d J]TE m J_TQ d J_TO d JbTO d JbTQ d J_TQ
+m JbTM d JdTK m JdTO d JbTG m JXS? m GBSa d GBR~ m GDSc d GDS@ m GESf
+d GER~ m GESf d FtSI d GMSI m F~R~ d GJR~ m GBS@ d F?R~ m GBSB d GAR~
+m GESB d GGR~ m GES@ d GIR~ m FtRp m G]Sf d GZSS d G]SW d GbSY d GgSY
+d GlSW d GoSS d GpSM d GpSI d GoSC d GlS@ d GgR~ d GbR~ d G]S@ d G\SB
+d GZSE d GZSG d G\SI d G]SI d G_SG d G_SE d G]SC d G\SC m GmSS d GoSO
+d GoSG d GmSC m GgSY d GjSW d GlSU d GmSO d GmSG d GlSB d GjS@ d GgR~
+m G\SG d G\SE d G]SE d G]SG d G\SG m G]Sf d GmSf m G]Se d GjSe m G]Sc
+d GdSc d GjSe d GmSf m GYRp m G}St m G}Rp m H\St m H\Rp m H{St m H{Rp
+m IZSt m IZRp m IySt m IyRp m JZSQ d JqSQ d JqSO m JZSQ d JZSO d JqSO
+m JXRp m GBRQ d GBQn m GDRS d GDQp m GERW d GEQn m GERW d FtQz d GMQz
+m F~Qn d GJQn m GBQp d F?Qn m GBQr d GAQn m GEQr d GGQn m GEQp d GIQn
+m FtQa m GlRQ d GlRO d GmRO d GmRQ d GlRQ m GmRS d GlRS d GjRQ d GjRO
+d GlRM d GmRM d GoRO d GoRQ d GmRU d GjRW d GeRW d GaRU d G]RQ d G\RM
+d GZRF d GZQz d G\Qt d G_Qp d GdQn d GgQn d GlQp d GoQt d GpQz d GpQ|
+d GoRB d GlRF d GgRH d GdRH d GaRF d G_RD d G]R@ m G_RQ d G]RM d G\RF
+d G\Qz d G]Qt d G_Qr m GmQt d GoQx d GoQ~ d GmRB m GeRW d GbRU d GaRS
+d G_RO d G]RH d G]Qz d G_Qt d GaQp d GdQn m GgQn d GjQp d GlQr d GmQx
+d GmQ~ d GlRD d GjRF d GgRH m GYQa m G}Re m G}Qa m H\Re m H\Qa m H{Re
+m H{Qa m IZRe m IZQa m IyRe m IyQa m J_Qt d J]Qr d J]Qp d J_Qn d JbQn
+d JdQp d JdQr d JbQt d J_Qt m J_Qr d J_Qp d JbQp d JbQr d J_Qr m JXQa
+m GBQB d GBP_ m GDQD d GDPa m GEQH d GEP_ m GEQH d FtPk d GMPk m F~P_
+d GJP_ m GBPa d F?P_ m GBPc d GAP_ m GEPc d GGP_ m GEPa d GIP_ m FtPQ
+m GZQH d GZP| m GpQH d GpQB d GoP| d GiPr d GgPo d GePg d GeP_ m GgPq
+d GePm d GdPg d GdP_ m GoP| d GgPr d GdPm d GbPg d GbP_ d GeP_ m GZQ@
+d G\QD d G_QH d GbQH d GjQB d GmQB d GoQD d GpQH m G]QD d G_QF d GbQF
+d GeQD m GZQ@ d G\QB d G_QD d GbQD d GjQB m GYPQ m G}QU m G}PQ m H\QU
+m H\PQ m H{QU m H{PQ m IZQU m IZPQ m IyQU m IyPQ m JqQP d JXPQ d JYPQ
+m JqQP d JsQP d JYPQ m JXPQ m GBOs d GBOP m GDOu d GDOR m GEOy d GEOP
+m GEOy d FtO[ d GMO[ m F~OP d GJOP m GBOR d F?OP m GBOT d GAOP m GEOT
+d GGOP m GEOR d GIOP m FtOB m GbOy d G]Ow d G\Os d G\Om d G]Oi d GbOg
+d GiOg d GmOi d GoOm d GoOs d GmOw d GiOy d GbOy m G_Ow d G]Os d G]Om
+d G_Oi m GlOi d GmOm d GmOs d GlOw m GbOy d GaOw d G_Os d G_Om d GaOi
+d GbOg m GiOg d GjOi d GlOm d GlOs d GjOw d GiOy m GbOg d G]Oe d G\Oc
+d GZO_ d GZOW d G\OT d G]OR d GbOP d GiOP d GmOR d GoOT d GpOW d GpO_
+d GoOc d GmOe d GiOg m G]Oc d G\O_ d G\OW d G]OT m GmOT d GoOW d GoO_
+d GmOc m GbOg d G_Oe d G]O_ d G]OW d G_OR d GbOP m GiOP d GlOR d GmOW
+d GmO_ d GlOe d GiOg m GYOB m G}PF m G}OB m H\PF m H\OB m H{PF m H{OB
+m IZPF m IZOB m IyPF m IyOB m JcOy d J^Ow d J[Oq d JYOg d JYOa d J[OW
+d J^OR d JcOP d JfOP d JkOR d JnOW d JoOa d JoOg d JnOq d JkOw d JfOy
+d JcOy m J^Ou d J\Oq d J[Oi d J[O_ d J\OW d J^OT m JkOT d JlOW d JnO_
+d JnOi d JlOq d JkOu m JcOy d J`Ow d J^Os d J\Oi d J\O_ d J^OV d J`OR
+d JcOP m JfOP d JiOR d JkOV d JlO_ d JlOi d JkOs d JiOw d JfOy m JXOB
+m GBNc d GBN@ m GDNe d GDNB m GENi d GEN@ m GENi d FtNL d GMNL m F~N@
+d GJN@ m GBNB d F?N@ m GBND d GAN@ m GEND d GGN@ m GENB d GIN@ m FtMs
+m G]NH d G]NF d G_NF d G_NH d G]NH m GmNX d GlNT d GjNR d GgNP d GdNP
+d G_NR d G\NV d GZN[ d GZN] d G\Nc d G_Ng d GdNi d GgNi d GlNg d GoNc
+d GpN] d GpNR d GoNJ d GmNF d GjNB d GeN@ d GaN@ d G]NB d G\NF d G\NH
+d G]NJ d G_NJ d GaNH d GaNF d G_ND d G]ND m G]NV d G\NZ d G\N_ d G]Nc
+m GlNe d GmNc d GoN] d GoNR d GmNJ d GlNF m GdNP d GaNR d G_NT d G]NZ
+d G]N_ d G_Ne d GaNg d GdNi m GgNi d GjNg d GlNc d GmN] d GmNP d GlNH
+d GjND d GiNB d GeN@ m GYMs m G}Nw m G}Ms m H\Nw m H\Ms m H{Nw m H{Ms
+m IZNw m IZMs m IyNw m IyMs m JcNe d JcN@ m JdNe d JdNB m JfNi d JfN@
+m JfNi d JaNc d J^Na m J\N@ d JlN@ m JcNB d J`N@ m JcND d JaN@ m JfND
+d JgN@ m JfNB d JiN@ m JXMs m FyMZ d FvMF d FyMJ d F~ML d GBML d GGMJ
+d GJMF d GLMA d GLL} d GJLw d GGLs d GBLq d F~Lq d FyLs d FwLu d FvLy
+d FvL{ d FwL} d FyL} d FzL{ d FzLy d FyLw d FwLw m GIMF d GJMC d GJL{
+d GILw m GBML d GEMJ d GGMH d GIMC d GIL{ d GGLu d GELs d GBLq m FwL{
+d FwLy d FyLy d FyL{ d FwL{ m FyMZ d GIMZ m FyMX d GEMX m FyMV d F?MV
+d GEMX d GIMZ m FtLc m GdMZ d G_MX d G\MR d GZMH d GZMC d G\Ly d G_Ls
+d GdLq d GgLq d GlLs d GoLy d GpMC d GpMH d GoMR d GlMX d GgMZ d GdMZ
+m G_MV d G]MR d G\MJ d G\MA d G]Ly d G_Lu m GlLu d GmLy d GoMA d GoMJ
+d GmMR d GlMV m GdMZ d GaMX d G_MT d G]MJ d G]MA d G_Lw d GaLs d GdLq
+m GgLq d GjLs d GlLw d GmMA d GmMJ d GlMT d GjMX 
+stroke
+m GjMX d GgMZ m GYLc m G}Mg m G}Lc m H\Mg m H\Lc m H{Mg m H{Lc m IZMg
+m IZLc m IyMg m IyLc m J[MR d J[MP d J\MP d J\MR d J[MR m J[MT d J\MT
+d J^MR d J^MP d J\MN d J[MN d JYMP d JYMR d J[MV d J\MX d JaMZ d JgMZ
+d JlMX d JnMV d JoMR d JoMN d JnMJ d JiMF d JaMC d J^MA d J[L} d JYLw
+d JYLq m JlMV d JnMR d JnMN d JlMJ m JgMZ d JkMX d JlMR d JlMN d JkMJ
+d JgMF d JaMC m JYLu d J[Lw d J^Lw d JfLu d JlLu d JoLw m J^Lw d JfLs
+d JlLs d JnLu m J^Lw d JfLq d JlLq d JnLs d JoLw d JoL{ m JXLc m FyLK
+d FvKw d FyK{ d F~K} d GBK} d GGK{ d GJKw d GLKq d GLKm d GJKg d GGKd
+d GBKb d F~Kb d FyKd d FwKf d FvKi d FvKk d FwKm d FyKm d FzKk d FzKi
+d FyKg d FwKg m GIKw d GJKs d GJKk d GIKg m GBK} d GEK{ d GGKy d GIKs
+d GIKk d GGKf d GEKd d GBKb m FwKk d FwKi d FyKi d FyKk d FwKk m FyLK
+d GILK m FyLI d GELI m FyLG d F?LG d GELI d GILK m FtKT m GdLG d GdKb
+m GeLG d GeKd m GgLK d GgKb m GgLK d GbLE d G_LC m G]Kb d GmKb m GdKd
+d GaKb m GdKf d GbKb m GgKf d GiKb m GgKd d GjKb m GYKT m G}LX m G}KT
+m H\LX m H\KT m H{LX m H{KT m IZLX m IZKT m IyLX m IyKT m J[LC d J[LA
+d J\LA d J\LC d J[LC m J[LE d J\LE d J^LC d J^LA d J\K? d J[K? d JYLA
+d JYLC d J[LG d J\LI d JaLK d JgLK d JlLI d JnLE d JnK? d JlK{ d JgKy
+m JkLI d JlLE d JlK? d JkK{ m JfLK d JiLI d JkLE d JkK? d JiK{ d JfKy
+m JcKy d JgKy d JkKw d JnKs d JoKo d JoKi d JnKf d JlKd d JgKb d JaKb
+d J\Kd d J[Kf d JYKi d JYKk d J[Km d J\Km d J^Kk d J^Ki d J\Kg d J[Kg
+m JlKs d JnKo d JnKi d JlKf m JfKy d JiKw d JkKu d JlKo d JlKi d JkKd
+d JgKb m J[Kk d J[Ki d J\Ki d J\Kk d J[Kk m JXKT m FyJ{ d FvJh d FyJl
+d F~Jn d GBJn d GGJl d GJJh d GLJb d GLJ^ d GJJX d GGJT d GBJR d F~JR
+d FyJT d FwJV d FvJZ d FvJ\ d FwJ^ d FyJ^ d FzJ\ d FzJZ d FyJX d FwJX
+m GIJh d GJJd d GJJ\ d GIJX m GBJn d GEJl d GGJj d GIJd d GIJ\ d GGJV
+d GEJT d GBJR m FwJ\ d FwJZ d FyJZ d FyJ\ d FwJ\ m FyJ{ d GIJ{ m FyJy
+d GEJy m FyJw d F?Jw d GEJy d GIJ{ m FtJE m G\Js d G\Jq d G]Jq d G]Js
+d G\Js m G\Ju d G]Ju d G_Js d G_Jq d G]Jo d G\Jo d GZJq d GZJs d G\Jw
+d G]Jy d GbJ{ d GiJ{ d GmJy d GoJw d GpJs d GpJo d GoJl d GjJh d GbJd
+d G_Jb d G\J^ d GZJX d GZJR m GmJw d GoJs d GoJo d GmJl m GiJ{ d GlJy
+d GmJs d GmJo d GlJl d GiJh d GbJd m GZJV d G\JX d G_JX d GgJV d GmJV
+d GpJX m G_JX d GgJT d GmJT d GoJV m G_JX d GgJR d GmJR d GoJT d GpJX
+d GpJ\ m GYJE m G}KI m G}JE m H\KI m H\JE m H{KI m H{JE m IZKI m IZJE
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+d G]I` d G\I` d GZIb d GZId d G\Ih d G]Ij d GbIl d GiIl d GmIj d GoIf
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+d GlI` d GjI\ d GgIZ m GdIZ d GiIZ d GlIX d GoIT d GpIQ d GpIK d GoIG
+d GmIE d GiIC d GbIC d G]IE d G\IG d GZIK d GZIM d G\IO d G]IO d G_IM
+d G_IK d G]II d G\II m GmIT d GoIQ d GoIK d GmIG m GgIZ d GjIX d GlIV
+d GmIQ d GmIK d GlIE d GiIC m G\IM d G\IK d G]IK d G]IM d G\IM m GYHu
+m G}Iy m G}Hu m H\Iy m H\Hu m H{Iy m H{Hu m IZIy m IZHu m IyIy m IyHu
+m J\Il d JYIX d J\I\ d JaI^ d JfI^ d JkI\ d JnIX d JoIS d JoIO d JnII
+d JkIE d JfIC d JaIC d J\IE d J[IG d JYIK d JYIM d J[IO d J\IO d J^IM
+d J^IK d J\II d J[II m JlIX d JnIT d JnIM d JlII m JfI^ d JiI\ d JkIZ
+d JlIT d JlIM d JkIG d JiIE d JfIC m J[IM d J[IK d J\IK d J\IM d J[IM
+m J\Il d JlIl m J\Ij d JiIj m J\Ih d JcIh d JiIj d JlIl m JXHu m FyH\
+d FvHI d FyHM d F~HO d GBHO d GGHM d GJHI d GLHC d GLG? d GJGy d GGGv
+d GBGt d F~Gt d FyGv d FwGx d FvG{ d FvG} d FwG? d FyG? d FzG} d FzG{
+d FyGy d FwGy m GIHI d GJHE d GJG} d GIGy m GBHO d GEHM d GGHK d GIHE
+d GIG} d GGGx d GEGv d GBGt m FwG} d FwG{ d FyG{ d FyG} d FwG} m FyH\
+d GIH\ m FyH[ d GEH[ m FyHY d F?HY d GEH[ d GIH\ m FtGf m GgHW d GgGt
+m GiHY d GiGv m GjH\ d GjGt m GjH\ d GYG? d GrG? m GbGt d GoGt m GgGv
+d GdGt m GgGx d GeGt m GjGx d GlGt m GjGv d GmGt m GYGf m G}Hj m G}Gf
+m H\Hj m H\Gf m H{Hj m H{Gf m IZHj m IZGf m IyHj m IyGf m JkHW d JkHU
+d JlHU d JlHW d JkHW m JlHY d JkHY d JiHW d JiHU d JkHS d JlHS d JnHU
+d JnHW d JlH[ d JiH\ d JdH\ d J`H[ d J\HW d J[HS d JYHK d JYG? d J[Gy
+d J^Gv d JcGt d JfGt d JkGv d JnGy d JoG? d JoHA d JnHG d JkHK d JfHM
+d JcHM d J`HK d J^HI d J\HE m J^HW d J\HS d J[HK d J[G? d J\Gy d J^Gx
+m JlGy d JnG} d JnHC d JlHG m JdH\ d JaH[ d J`HY d J^HU d J\HM d J\G?
+d J^Gy d J`Gv d JcGt m JfGt d JiGv d JkGx d JlG} d JlHC d JkHI d JiHK
+d JfHM m JXGf m FyGM d FvFz d FyF~ d F~G@ d GBG@ 
+stroke
+m GBG@ d GGF~ d GJFz d GLFt d GLFp d GJFj d GGFf d GBFd d F~Fd d FyFf
+d FwFh d FvFl d FvFn d FwFp d FyFp d FzFn d FzFl d FyFj d FwFj m GIFz
+d GJFv d GJFn d GIFj m GBG@ d GEF~ d GGF| d GIFv d GIFn d GGFh d GEFf
+d GBFd m FwFn d FwFl d FyFl d FyFn d FwFn m FyGM d GIGM m FyGK d GEGK
+m FyGI d F?GI d GEGK d GIGM m FtFW m G]GM d GZFz d G]F~ d GbG@ d GgG@
+d GlF~ d GoFz d GpFt d GpFp d GoFj d GlFf d GgFd d GbFd d G]Ff d G\Fh
+d GZFl d GZFn d G\Fp d G]Fp d G_Fn d G_Fl d G]Fj d G\Fj m GmFz d GoFv
+d GoFn d GmFj m GgG@ d GjF~ d GlF| d GmFv d GmFn d GlFh d GjFf d GgFd
+m G\Fn d G\Fl d G]Fl d G]Fn d G\Fn m G]GM d GmGM m G]GK d GjGK m G]GI
+d GdGI d GjGK d GmGM m GYFW m G}G[ m G}FW m H\G[ m H\FW m H{G[ m H{FW
+m IZG[ m IZFW m IyG[ m IyFW m JYGM d JYGA m JoGM d JoGG d JnGA d JgFx
+d JfFt d JdFl d JdFd m JfFv d JdFr d JcFl d JcFd m JnGA d JfFx d JcFr
+d JaFl d JaFd d JdFd m JYGE d J[GI d J^GM d JaGM d JiGG d JlGG d JnGI
+d JoGM m J\GI d J^GK d JaGK d JdGI m JYGE d J[GG d J^GI d JaGI d JiGG
+m JXFW m RTcn d RQcZ d RTc^ d RYc` d R^c` d Rbc^ d RfcZ d RgcU d RgcQ
+d RfcK d RbcG d R^cE d RYcE d RTcG d RRcI d RQcM d RQcO d RRcQ d RTcQ
+d RVcO d RVcM d RTcK d RRcK m RdcZ d RfcV d RfcO d RdcK m R^c` d Rac^
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+d RRcO m RTcn d Rdcn m RTcl d Racl m RTcj d RZcj d Racl d Rdcn m RObw
+m SGch d SGcf d SIcf d SIch d SGch m SIcj d SGcj d SEch d SEcf d SGcd
+d SIcd d SJcf d SJch d SIcl d SEcn d SAcn d R|cl d Rych d Rwcd d Rvc\
+d RvcQ d RwcK d RzcG d R?cE d SBcE d SGcG d SJcK d SLcQ d SLcS d SJcX
+d SGc\ d SBc^ d R?c^ d R|c\ d RzcZ d RycV m Rzch d Rycd d Rwc\ d RwcQ
+d RycK d RzcI m SIcK d SJcO d SJcU d SIcX m SAcn d R~cl d R|cj d Rzcf
+d Ryc^ d RycQ d RzcK d R|cG d R?cE m SBcE d SEcG d SGcI d SIcO d SIcU
+d SGcZ d SEc\ d SBc^ m Rtbw m SYc{ m SYbw m Sxc{ m Sxbw m TVc{ m TVbw
+m Tuc{ m Tubw m UTc{ m UTbw m U}cn d Uxcl d Uvch d Uvcb d Uxc^ d U}c\
+d VCc\ d VHc^ d VIcb d VIch d VHcl d VCcn d U}cn m Uycl d Uxch d Uxcb
+d Uyc^ m VFc^ d VHcb d VHch d VFcl m U}cn d U{cl d Uych d Uycb d U{c^
+d U}c\ m VCc\ d VDc^ d VFcb d VFch d VDcl d VCcn m U}c\ d UxcZ d UvcX
+d UucU d UucM d UvcI d UxcG d U}cE d VCcE d VHcG d VIcI d VKcM d VKcU
+d VIcX d VHcZ d VCc\ m UxcX d UvcU d UvcM d UxcI m VHcI d VIcM d VIcU
+d VHcX m U}c\ d UycZ d UxcU d UxcM d UycG d U}cE m VCcE d VFcG d VHcM
+d VHcU d VFcZ d VCc\ m Usbw m RTb^ d RQbK d RTbO d RYbQ d R^bQ d RbbO
+d RfbK d RgbE d RgbA d Rfa{ d Rbax d R^av d RYav d RTax d RRaz d RQa}
+d RQa? d RRbA d RTbA d RVa? d RVa} d RTa{ d RRa{ m RdbK d RfbG d Rfa?
+d Rda{ m R^bQ d RabO d RbbM d RdbG d Rda? d Rbaz d Raax d R^av m RRa?
+d RRa} d RTa} d RTa? d RRa? m RTb^ d Rdb^ m RTb] d Rab] m RTb[ d RZb[
+d Rab] d Rdb^ m ROah m Rvb^ d RvbS m SLb^ d SLbY d SJbS d SDbI d SBbE
+d SAa} d SAav m SBbG d SAbC d R?a} d R?av m SJbS d SBbI d R?bC d R~a}
+d R~av d SAav m RvbW d Rwb[ d Rzb^ d R~b^ d SEbY d SIbY d SJb[ d SLb^
+m Ryb[ d Rzb] d R~b] d SAb[ m RvbW d RwbY d Rzb[ d R~b[ d SEbY m Rtah
+m SYbl m SYah m Sxbl m Sxah m TVbl m TVah m Tubl m Tuah m UTbl m UTah
+m Uxa} d Uxa{ d Uya{ d Uya} d Uxa} m VHbM d VFbI d VDbG d VAbE d U~bE
+d UybG d UvbK d UubQ d UubS d UvbY d Uyb] d U~b^ d VAb^ d VFb] d VIbY
+d VKbS d VKbG d VIa? d VHa{ d VDax d V@av d U{av d Uxax d Uva{ d Uva}
+d Uxa? d Uya? d U{a} d U{a{ d Uyaz d Uxaz m UxbK d UvbO d UvbU d UxbY
+m VFb[ d VHbY d VIbS d VIbG d VHa? d VFa{ m U~bE d U{bG d UybI d UxbO
+d UxbU d Uyb[ d U{b] d U~b^ m VAb^ d VDb] d VFbY d VHbS d VHbE d VFa}
+d VDaz d VCax d V@av m Usah m RTaO d RQ`| d RTa@ d RYaB d R^aB d Rba@
+d Rf`| d Rg`v d Rg`r d Rf`l d Rb`h d R^`f d RY`f d RT`h d RR`j d RQ`n
+d RQ`p d RR`r d RT`r d RV`p d RV`n d RT`l d RR`l m Rd`| d Rf`x d Rf`p
+d Rd`l m R^aB d Raa@ d Rb`~ d Rd`x d Rd`p d Rb`j d Ra`h d R^`f m RR`p
+d RR`n d RT`n d RT`p d RR`p m RTaO d RdaO m RTaM d RaaM m RTaK d RZaK
+d RaaM d RdaO m RO`Y m R~aO d RyaM d RwaI d RwaC d Rya@ d R~`~ d SD`~
+d SIa@ d SJaC d SJaI d SIaM d SDaO d R~aO m RzaM d RyaI d RyaC d Rza@
+m SGa@ d SIaC d SIaI d SGaM m R~aO d R|aM d RzaI d RzaC d R|a@ d R~`~
+m SD`~ d SEa@ d SGaC d SGaI d SEaM d SDaO m R~`~ d Ry`| d Rw`z d Rv`v
+d Rv`n d Rw`j d Ry`h d R~`f d SD`f d SI`h d SJ`j d SL`n d SL`v d SJ`z
+d SI`| d SD`~ m Ry`z d Rw`v d Rw`n d Ry`j m SI`j d SJ`n d SJ`v d SI`z
+m R~`~ d Rz`| d Ry`v d Ry`n d Rz`h d R~`f m SD`f d SG`h d SI`n d SI`v
+d SG`| d SD`~ m Rt`Y m SYa] m SY`Y m Sxa] m Sx`Y m TVa] m TV`Y m Tua]
+m Tu`Y m UTa] m UT`Y m UzaB d Uxa@ d Ux`~ d Uz`| d U}`| d U?`~ d U?a@
+d U}aB d UzaB m Uza@ d Uz`~ d U}`~ d U}a@ d Uza@ m Uz`l d Ux`j d Ux`h
+d Uz`f d U}`f d U?`h d U?`j d U}`l d Uz`l m Uz`j d Uz`h d U}`h 
+stroke
+m U}`h d U}`j d Uz`j m Us`Y m RT`@ d RQ_l d RT_p d RY_r d R^_r d Rb_p
+d Rf_l d Rg_g d Rg_c d Rf_] d Rb_Y d R^_W d RY_W d RT_Y d RR_[ d RQ__
+d RQ_a d RR_c d RT_c d RV_a d RV__ d RT_] d RR_] m Rd_l d Rf_i d Rf_a
+d Rd_] m R^_r d Ra_p d Rb_n d Rd_i d Rd_a d Rb_[ d Ra_Y d R^_W m RR_a
+d RR__ d RT__ d RT_a d RR_a m RT`@ d Rd`@ m RT_~ d Ra_~ m RT_| d RZ_|
+d Ra_~ d Rd`@ m RO_I m Ry__ d Ry_] d Rz_] d Rz__ d Ry__ m SI_n d SG_j
+d SE_i d SB_g d R?_g d Rz_i d Rw_l d Rv_r d Rv_t d Rw_z d Rz_~ d R?`@
+d SB`@ d SG_~ d SJ_z d SL_t d SL_i d SJ_a d SI_] d SE_Y d SA_W d R|_W
+d Ry_Y d Rw_] d Rw__ d Ry_a d Rz_a d R|__ d R|_] d Rz_[ d Ry_[ m Ry_l
+d Rw_p d Rw_v d Ry_z m SG_| d SI_z d SJ_t d SJ_i d SI_a d SG_] m R?_g
+d R|_i d Rz_j d Ry_p d Ry_v d Rz_| d R|_~ d R?`@ m SB`@ d SE_~ d SG_z
+d SI_t d SI_g d SG__ d SE_[ d SD_Y d SA_W m Rt_I m SY`M m SY_I m Sx`M
+m Sx_I m TV`M m TV_I m Tu`M m Tu_I m UT`M m UT_I m Uz_r d Ux_p d Ux_n
+d Uz_l d U}_l d U?_n d U?_p d U}_r d Uz_r m Uz_p d Uz_n d U}_n d U}_p
+d Uz_p m U?_Y d U}_W d Uz_W d Ux_Y d Ux_[ d Uz_] d U}_] d U?_[ d U?_U
+d U}_Q d Ux_O m Uz_[ d Uz_Y d U}_Y d U}_[ d Uz_[ m U}_W d U?_U m U?_Y
+d U}_Q m Us_I m Rb^k d Rb^i d Rd^i d Rd^k d Rb^k m Rd^m d Rb^m d Ra^k
+d Ra^i d Rb^g d Rd^g d Rf^i d Rf^k d Rd^o d Ra^p d R\^p d RW^o d RT^k
+d RR^g d RQ^_ d RQ^S d RR^M d RV^J d RZ^H d R^^H d Rb^J d Rf^M d Rg^S
+d Rg^U d Rf^[ d Rb^_ d R^^a d RZ^a d RW^_ d RV^] d RT^Y m RV^k d RT^g
+d RR^_ d RR^S d RT^M d RV^K m Rd^M d Rf^Q d Rf^W d Rd^[ m R\^p d RY^o
+d RW^m d RV^i d RT^a d RT^S d RV^M d RW^J d RZ^H m R^^H d Ra^J d Rb^K
+d Rd^Q d Rd^W d Rb^] d Ra^_ d R^^a m RO]z m R?^p d Rz^o d Rw^i d Rv^_
+d Rv^Y d Rw^O d Rz^J d R?^H d SB^H d SG^J d SJ^O d SL^Y d SL^_ d SJ^i
+d SG^o d SB^p d R?^p m Rz^m d Ry^i d Rw^a d Rw^W d Ry^O d Rz^K m SG^K
+d SI^O d SJ^W d SJ^a d SI^i d SG^m m R?^p d R|^o d Rz^k d Ry^a d Ry^W
+d Rz^M d R|^J d R?^H m SB^H d SE^J d SG^M d SI^W d SI^a d SG^k d SE^o
+d SB^p m Rt]z m SY^~ m SY]z m Sx^~ m Sx]z m TV^~ m TV]z m Tu^~ m Tu]z
+m UT^~ m UT]z m VL^k d Uv^Y d VL^H m Us]z m Rb][ d Rb]Y d Rd]Y d Rd][
+d Rb][ m Rd]] d Rb]] d Ra][ d Ra]Y d Rb]W d Rd]W d Rf]Y d Rf][ d Rd]_
+d Ra]a d R\]a d RW]_ d RT][ d RR]W d RQ]P d RQ]D d RR\~ d RV\z d RZ\x
+d R^\x d Rb\z d Rf\~ d Rg]D d Rg]F d Rf]L d Rb]P d R^]R d RZ]R d RW]P
+d RV]N d RT]J m RV][ d RT]W d RR]P d RR]D d RT\~ d RV\| m Rd\~ d Rf]B
+d Rf]H d Rd]L m R\]a d RY]_ d RW]] d RV]Y d RT]R d RT]D d RV\~ d RW\z
+d RZ\x m R^\x d Ra\z d Rb\| d Rd]B d Rd]H d Rb]N d Ra]P d R^]R m RO\k
+m R?]] d R?\x m SA]] d SA\z m SB]a d SB\x m SB]a d R~][ d Rz]Y m Ry\x
+d SI\x m R?\z d R|\x m R?\| d R~\x m SB\| d SD\x m SB\z d SE\x m Rt\k
+m SY]o m SY\k m Sx]o m Sx\k m TV]o m TV\k m Tu]o m Tu\k m UT]o m UT\k
+m Uv]S d VL]S d VL]R m Uv]S d Uv]R d VL]R m Uv]D d VL]D d VL]B m Uv]D
+d Uv]B d VL]B m Us\k m Rb\L d Rb\J d Rd\J d Rd\L d Rb\L m Rd\N d Rb\N
+d Ra\L d Ra\J d Rb\H d Rd\H d Rf\J d Rf\L d Rd\P d Ra\R d R\\R d RW\P
+d RT\L d RR\H d RQ\@ d RQ[u d RR[o d RV[k d RZ[i d R^[i d Rb[k d Rf[o
+d Rg[u d Rg[w d Rf[| d Rb\@ d R^\B d RZ\B d RW\@ d RV[~ d RT[{ m RV\L
+d RT\H d RR\@ d RR[u d RT[o d RV[m m Rd[o d Rf[s d Rf[y d Rd[| m R\\R
+d RY\P d RW\N d RV\J d RT\B d RT[u d RV[o d RW[k d RZ[i m R^[i d Ra[k
+d Rb[m d Rd[s d Rd[y d Rb[~ d Ra\@ d R^\B m RO[[ m Rw\J d Rw\H d Ry\H
+d Ry\J d Rw\J m Rw\L d Ry\L d Rz\J d Rz\H d Ry\F d Rw\F d Rv\H d Rv\J
+d Rw\N d Ry\P d R~\R d SD\R d SI\P d SJ\N d SL\J d SL\F d SJ\B d SE[~
+d R~[{ d Rz[y d Rw[u d Rv[o d Rv[i m SI\N d SJ\J d SJ\F d SI\B m SD\R
+d SG\P d SI\J d SI\F d SG\B d SD[~ d R~[{ m Rv[m d Rw[o d Rz[o d SB[m
+d SI[m d SL[o m Rz[o d SB[k d SI[k d SJ[m m Rz[o d SB[i d SI[i d SJ[k
+d SL[o d SL[s m Rt[[ m SY\_ m SY[[ m Sx\_ m Sx[[ m TV\_ m TV[[ m Tu\_
+m Tu[[ m UT\_ m UT[[ m Uv\L d VL[{ d Uv[i m Us[[ m RbZ} d RbZ{ d RdZ{
+d RdZ} d RbZ} m RdZ? d RbZ? d RaZ} d RaZ{ d RbZy d RdZy d RfZ{ d RfZ}
+d Rd[A d Ra[C d R\[C d RW[A d RTZ} d RRZy d RQZq d RQZe d RRZ` d RVZ\
+d RZZZ d R^ZZ d RbZ\ d RfZ` d RgZe d RgZg d RfZm d RbZq d R^Zs d RZZs
+d RWZq d RVZo d RTZk m RVZ} d RTZy d RRZq d RRZe d RTZ` d RVZ^ m RdZ`
+d RfZc d RfZi d RdZm m R\[C d RY[A d RWZ? d RVZ{ d RTZs d RTZe d RVZ`
+d RWZ\ d RZZZ m R^ZZ d RaZ\ d RbZ^ d RdZc d RdZi d RbZo d RaZq d R^Zs
+m ROZL m RwZ{ d RwZy d RyZy d RyZ{ d RwZ{ m RwZ} d RyZ} d RzZ{ d RzZy
+d RyZw d RwZw d RvZy d RvZ{ d RwZ? d Ry[A d R~[C d SD[C d SI[A d SJZ}
+d SJZw d SIZs d SDZq m SG[A d SIZ} d SIZw d SGZs m SB[C d SE[A d SGZ}
+d SGZw d SEZs d SBZq m R?Zq d SDZq d SGZo d SJZk d SLZg d SLZa d SJZ^
+d SIZ\ d SDZZ d R~ZZ d RyZ\ d RwZ^ d RvZa d RvZc d RwZe d RyZe d RzZc
+d RzZa d RyZ` d RwZ` 
+stroke
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+d R~Ud d R~U\ d SAU\ m RvU} d RwVA d RzVE d R~VE d SEU? d SIU? 
+stroke
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+d R~VA d SEU? m RtUO m SYVS m SYUO m SxVS m SxUO m TVVS m TVUO m TuVS
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+d RgOs d RfOm d R_Oc 
+stroke
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+d RyKd d RwKf d RvKi d RvKk d RwKm d RyKm d RzKk d RzKi d RyKg d RwKg
+m SIKw d SJKs d SJKk d SIKg m SBK} d SEK{ d SGKy d SIKs d SIKk d SGKf
+d SEKd d SBKb m RwKk d RwKi d RyKi d RyKk d RwKk m RyLK d SILK m RyLI
+d SELI m RyLG d R?LG d SELI d SILK m RtKT m SYLX m SYKT m SxLX m SxKT
+m TVLX m TVKT m TuLX m TuKT m UTLX m UTKT m UwLK d UwKb m UyLI d UyKd
+m UzLK d UzKb m VKLI d UzKs m U?Kw d VIKb m V@Kw d VKKb m V@K{ d VLKb
+m UsLK d U?LK m VFLK d VOLK m UsKb d U?Kb m VEKb d VOKb m UtLK d UwLI
+m UvLK d UwLG m U|LK d UzLG m U}LK d UzLI m VILK d VKLI m VMLK d VKLI
+m UwKd d UtKb m UwKf d UvKb m UzKf d U|Kb m UzKd d U}Kb m VIKf d VFKb
+m VIKf d VMKb m UsKT m RQJ{ d RQJo m RgJ{ d RgJu d RfJo d R_Jf d R^Jb
+d R\JZ d R\JR m R^Jd d R\J` d RZJZ d RZJR m RfJo d R^Jf d RZJ` d RYJZ
+d RYJR d R\JR m RQJs d RRJw d RVJ{ d RYJ{ d RaJu d RdJu d RfJw d RgJ{
+m RTJw d RVJy d RYJy d R\Jw m RQJs d RRJu d RVJw d RYJw d RaJu m ROJE
+m SGJu d SGJs d SIJs d SIJu d SGJu m SIJw d SGJw d SEJu d SEJs d SGJq
+d SIJq d SJJs d SJJu d SIJy d SEJ{ d SAJ{ d R|Jy d RyJu d RwJq d RvJj
+d RvJ^ d RwJX d RzJT d R?JR d SBJR d SGJT d SJJX d SLJ^ d SLJ` d SJJf
+d SGJj d SBJl d R?Jl d R|Jj d RzJh d RyJd m RzJu d RyJq d RwJj d RwJ^
+d RyJX d RzJV m SIJX d SJJ\ d SJJb d SIJf m SAJ{ d R~Jy d R|Jw d RzJs
+d RyJl d RyJ^ d RzJX d R|JT d R?JR m SBJR d SEJT d SGJV d SIJ\ d SIJb
+d SGJh d SEJj d SBJl m RtJE m SYKI m SYJE m SxKI m SxJE m TVKI m TVJE
+m TuKI m TuJE m UTKI m UTJE m UxJ{ d UxJR m UzJy d UzJT m U|J{ d U|JR
+m UsJ{ d VAJ{ m UsJR d VMJR d VMJ^ m UuJ{ d UxJy m UvJ{ d UxJw m U}J{
+d U|Jw m U?J{ d U|Jy m UxJT d UuJR m UxJV d UvJR m U|JV d U}JR m U|JT
+d U?JR m VDJR d VMJT m VHJR d VMJV m VIJR d VMJX m VKJR d VMJ^ m UsJE
+m RQIl d RQI` m RgIl d RgIf d RfI` d R_IV d R^IS d R\IK d R\IC m R^IT
+d R\IQ d RZIK d RZIC m RfI` d R^IV d RZIQ d RYIK d RYIC d R\IC m RQId
+d RRIh d RVIl d RYIl d RaIf d RdIf d RfIh d RgIl m RTIh d RVIj d RYIj
+d R\Ih m RQId d RRIf d RVIh d RYIh d RaIf m ROHu m RvIl d RvI` m SLIl
+d SLIf d SJI` d SDIV d SBIS d SAIK d SAIC m SBIT d SAIQ d R?IK d R?IC
+m SJI` d SBIV d R?IQ d R~IK d R~IC d SAIC m RvId d RwIh d RzIl d R~Il
+d SEIf 
+stroke
+m SEIf d SIIf d SJIh d SLIl m RyIh d RzIj d R~Ij d SAIh m RvId d RwIf
+d RzIh d R~Ih d SEIf m RtHu m SYIy m SYHu m SxIy m SxHu m TVIy m TVHu
+m TuIy m TuHu m UTIy m UTHu m UwIl d UwIE m UwIl d V@IC m UxIl d V@II
+m UyIl d VAII m VIIl d V@IC m VIIl d VIIC m VJIj d VJIE m VKIl d VKIC
+m UsIl d UyIl m VIIl d VOIl m UsIC d U{IC m VEIC d VOIC m UtIl d UwIj
+m VMIl d VKIh m VNIl d VKIj m UwIE d UtIC m UwIE d UyIC m VIIE d VFIC
+m VIIG d VHIC m VKIG d VMIC m VKIE d VNIC m UsHu m RQH\ d RQHQ m RgH\
+d RgHW d RfHQ d R_HG d R^HC d R\G{ d R\Gt m R^HE d R\HA d RZG{ d RZGt
+m RfHQ d R^HG d RZHA d RYG{ d RYGt d R\Gt m RQHU d RRHY d RVH\ d RYH\
+d RaHW d RdHW d RfHY d RgH\ m RTHY d RVH[ d RYH[ d R\HY m RQHU d RRHW
+d RVHY d RYHY d RaHW m ROGf m R~H\ d RyH[ d RwHW d RwHQ d RyHM d R~HK
+d SDHK d SIHM d SJHQ d SJHW d SIH[ d SDH\ d R~H\ m RzH[ d RyHW d RyHQ
+d RzHM m SGHM d SIHQ d SIHW d SGH[ m R~H\ d R|H[ d RzHW d RzHQ d R|HM
+d R~HK m SDHK d SEHM d SGHQ d SGHW d SEH[ d SDH\ m R~HK d RyHI d RwHG
+d RvHC d RvG{ d RwGx d RyGv d R~Gt d SDGt d SIGv d SJGx d SLG{ d SLHC
+d SJHG d SIHI d SDHK m RyHG d RwHC d RwG{ d RyGx m SIGx d SJG{ d SJHC
+d SIHG m R~HK d RzHI d RyHC d RyG{ d RzGv d R~Gt m SDGt d SGGv d SIG{
+d SIHC d SGHI d SDHK m RtGf m SYHj m SYGf m SxHj m SxGf m TVHj m TVGf
+m TuHj m TuGf m UTHj m UTGf m UwH\ d UwGv m UwH\ d VJGt m UxH\ d VIGy
+m UzH\ d VJGy m VJH[ d VJGt m UsH\ d UzH\ m VFH\ d VNH\ m UsGt d U{Gt
+m UtH\ d UwH[ m VHH\ d VJH[ m VMH\ d VJH[ m UwGv d UtGt m UwGv d UzGt
+m UsGf m RQGM d RQGA m RgGM d RgGG d RfGA d R_Fx d R^Ft d R\Fl d R\Fd
+m R^Fv d R\Fr d RZFl d RZFd m RfGA d R^Fx d RZFr d RYFl d RYFd d R\Fd
+m RQGE d RRGI d RVGM d RYGM d RaGG d RdGG d RfGI d RgGM m RTGI d RVGK
+d RYGK d R\GI m RQGE d RRGG d RVGI d RYGI d RaGG m ROFW m RyFl d RyFj
+d RzFj d RzFl d RyFl m SIF| d SGFx d SEFv d SBFt d R?Ft d RzFv d RwFz
+d RvG@ d RvGA d RwGG d RzGK d R?GM d SBGM d SGGK d SJGG d SLGA d SLFv
+d SJFn d SIFj d SEFf d SAFd d R|Fd d RyFf d RwFj d RwFl d RyFn d RzFn
+d R|Fl d R|Fj d RzFh d RyFh m RyFz d RwF~ d RwGC d RyGG m SGGI d SIGG
+d SJGA d SJFv d SIFn d SGFj m R?Ft d R|Fv d RzFx d RyF~ d RyGC d RzGI
+d R|GK d R?GM m SBGM d SEGK d SGGG d SIGA d SIFt d SGFl d SEFh d SDFf
+d SAFd m RtFW m SYG[ m SYFW m SxG[ m SxFW m TVG[ m TVFW m TuG[ m TuFW
+m UTG[ m UTFW m U?GM d UzGK d UwGG d UvGC d UtF| d UtFv d UvFn d UwFj
+d UzFf d U?Fd d VBFd d VFFf d VIFj d VKFn d VLFv d VLF| d VKGC d VIGG
+d VFGK d VBGM d U?GM m UyGG d UwGC d UvF~ d UvFt d UwFn d UyFj m VHFj
+d VIFn d VKFt d VKF~ d VIGC d VHGG m U?GM d U|GK d UyGE d UwF~ d UwFt
+d UyFl d U|Ff d U?Fd m VBFd d VEFf d VHFl d VIFt d VIF~ d VHGE d VEGK
+d VBGM m UsFW m ]Kc{ m ]Kbw m ]scn d ]ocl d ]mch d ]mcb d ]oc^ d ]sc\
+d ]zc\ d ]~c^ d ^@cb d ^@ch d ]~cl d ]zcn d ]scn m ]pcl d ]och d ]ocb
+d ]pc^ m ]}c^ d ]~cb d ]~ch d ]}cl m ]scn d ]rcl d ]pch d ]pcb d ]rc^
+d ]sc\ m ]zc\ d ]{c^ d ]}cb d ]}ch d ]{cl d ]zcn m ]sc\ d ]ocZ d ]mcX
+d ]kcU d ]kcM d ]mcI d ]ocG d ]scE d ]zcE d ]~cG d ^@cI d ^BcM d ^BcU
+d ^@cX d ]~cZ d ]zc\ m ]ocX d ]mcU d ]mcM d ]ocI m ]~cI d ^@cM d ^@cU
+d ]~cX m ]sc\ d ]pcZ d ]ocU d ]ocM d ]pcG d ]scE m ]zcE d ]}cG d ]~cM
+d ]~cU d ]}cZ d ]zc\ m ]jbw m ^Zcn d ^Ucl d ^Rcf d ^Pc\ d ^PcV d ^RcM
+d ^UcG d ^ZcE d ^]cE d ^bcG d ^ecM d ^fcV d ^fc\ d ^ecf d ^bcl d ^]cn
+d ^Zcn m ^Ucj d ^Scf d ^Rc^ d ^RcU d ^ScM d ^UcI m ^bcI d ^ccM d ^ecU
+d ^ec^ d ^ccf d ^bcj m ^Zcn d ^Vcl d ^Uch d ^Sc^ d ^ScU d ^UcK d ^VcG
+d ^ZcE m ^]cE d ^`cG d ^bcK d ^ccU d ^cc^ d ^bch d ^`cl d ^]cn m ^Obw
+m ^sc{ m ^sbw m _Rc{ m _Rbw m _qc{ m _qbw m `Pc{ m `Pbw m `oc{ m `obw
+m aRcn d aRcE m aScl d aScG m aUcn d aUcE m aNcn d a_cn d adcl d aecj
+d afcf d afc` d aec\ d adcZ d a_cX d aUcX m adcj d aecf d aec` d adc\
+m a_cn d abcl d adch d adc^ d abcZ d a_cX m aNcE d aYcE m aOcn d aRcl
+m aPcn d aRcj m aVcn d aUcj m aXcn d aUcl m aRcG d aOcE m aRcI d aPcE
+m aUcI d aVcE m aUcG d aXcE m aNbw m ]Kbl m ]Kah m ]sb^ d ]ob] d ]mbY
+d ]mbS d ]obO d ]sbM d ]zbM d ]~bO d ^@bS d ^@bY d ]~b] d ]zb^ d ]sb^
+m ]pb] d ]obY d ]obS d ]pbO m ]}bO d ]~bS d ]~bY d ]}b] m ]sb^ d ]rb]
+d ]pbY d ]pbS d ]rbO d ]sbM m ]zbM d ]{bO d ]}bS d ]}bY d ]{b] d ]zb^
+m ]sbM d ]obK d ]mbI d ]kbE d ]ka} d ]maz d ]oax d ]sav d ]zav d ]~ax
+d ^@az d ^Ba} d ^BbE d ^@bI d ]~bK d ]zbM m ]obI d ]mbE d ]ma} d ]oaz
+m ]~az d ^@a} d ^@bE d ]~bI m ]sbM d ]pbK d ]obE d ]oa} d ]pax d ]sav
+m ]zav d ]}ax d ]~a} d ]~bE d ]}bK d ]zbM m ]jah m ^Zb[ d ^Zav m ^[b[
+d ^[ax m ^]b^ d ^]av m ^]b^ d ^XbY d ^UbW m ^Sav d ^cav m ^Zax d ^Vav
+m ^Zaz d ^Xav m ^]az d ^^av m ^]ax d ^`av m ^Oah m ^sbl m ^sah m _Rbl
+m _Rah m _qbl m _qah m `Pbl m `Pah m `obl m `oah m aYb^ d aUb] d aRbY
+d aPbU d aObM d aObG d aPa? d aRa{ d aUax d aYav d a\av d aaax d ada{
+d aea? d afbG d afbM d aebU d adbY d aab] d a\b^ d aYb^ m aSbY d aRbU
+d aPbO d aPbE d aRa? d aSa{ m aba{ d ada? d aebE d aebO d adbU d abbY
+m aYb^ d aVb] d aSbW d aRbO d aRbE d aSa} d aVax d aYav m a\av d a_ax
+d aba} d adbE d adbO d abbW d a_b] d a\b^ m aUa{ d aVa? d aYbA d a[bA
+d a^a? d a_a{ d aaap d abal d aeal d afap d afat 
+stroke
+m afat m aaat d abap d adan d aean m a_a{ d abar d adap d aeap d afar
+m aNah m ]Ka] m ]K`Y m ]saO d ]oaM d ]maI d ]maC d ]oa@ d ]s`~ d ]z`~
+d ]~a@ d ^@aC d ^@aI d ]~aM d ]zaO d ]saO m ]paM d ]oaI d ]oaC d ]pa@
+m ]}a@ d ]~aC d ]~aI d ]}aM m ]saO d ]raM d ]paI d ]paC d ]ra@ d ]s`~
+m ]z`~ d ]{a@ d ]}aC d ]}aI d ]{aM d ]zaO m ]s`~ d ]o`| d ]m`z d ]k`v
+d ]k`n d ]m`j d ]o`h d ]s`f d ]z`f d ]~`h d ^@`j d ^B`n d ^B`v d ^@`z
+d ]~`| d ]z`~ m ]o`z d ]m`v d ]m`n d ]o`j m ]~`j d ^@`n d ^@`v d ]~`z
+m ]s`~ d ]p`| d ]o`v d ]o`n d ]p`h d ]s`f m ]z`f d ]}`h d ]~`n d ]~`v
+d ]}`| d ]z`~ m ]j`Y m ^RaG d ^RaE d ^SaE d ^SaG d ^RaG m ^RaI d ^SaI
+d ^UaG d ^UaE d ^SaC d ^RaC d ^PaE d ^PaG d ^RaK d ^SaM d ^XaO d ^^aO
+d ^caM d ^eaK d ^faG d ^faC d ^ea@ d ^``| d ^X`x d ^U`v d ^R`r d ^P`l
+d ^P`f m ^caK d ^eaG d ^eaC d ^ca@ m ^^aO d ^baM d ^caG d ^caC d ^ba@
+d ^^`| d ^X`x m ^P`j d ^R`l d ^U`l d ^]`j d ^c`j d ^f`l m ^U`l d ^]`h
+d ^c`h d ^e`j m ^U`l d ^]`f d ^c`f d ^e`h d ^f`l d ^f`p m ^O`Y m ^sa]
+m ^s`Y m _Ra] m _R`Y m _qa] m _q`Y m `Pa] m `P`Y m `oa] m `o`Y m aRaO
+d aR`f m aSaM d aS`h m aUaO d aU`f m aNaO d a_aO d adaM d aeaK d afaG
+d afaC d aea@ d ad`~ d a_`| d aU`| m adaK d aeaG d aeaC d ada@ m a_aO
+d abaM d adaI d adaB d ab`~ d a_`| m a[`| d a^`z d a_`v d ab`j d ad`f
+d af`f d ah`j d ah`n m ab`n d ad`j d ae`h d af`h m a^`z d a_`x d ad`l
+d ae`j d af`j d ah`l m aN`f d aY`f m aOaO d aRaM m aPaO d aRaK m aVaO
+d aUaK m aXaO d aUaM m aR`h d aO`f m aR`j d aP`f m aU`j d aV`f m aU`h
+d aX`f m aN`Y m ]K`M m ]K_I m ]s`@ d ]o_~ d ]m_z d ]m_t d ]o_p d ]s_n
+d ]z_n d ]~_p d ^@_t d ^@_z d ]~_~ d ]z`@ d ]s`@ m ]p_~ d ]o_z d ]o_t
+d ]p_p m ]}_p d ]~_t d ]~_z d ]}_~ m ]s`@ d ]r_~ d ]p_z d ]p_t d ]r_p
+d ]s_n m ]z_n d ]{_p d ]}_t d ]}_z d ]{_~ d ]z`@ m ]s_n d ]o_l d ]m_j
+d ]k_g d ]k__ d ]m_[ d ]o_Y d ]s_W d ]z_W d ]~_Y d ^@_[ d ^B__ d ^B_g
+d ^@_j d ]~_l d ]z_n m ]o_j d ]m_g d ]m__ d ]o_[ m ]~_[ d ^@__ d ^@_g
+d ]~_j m ]s_n d ]p_l d ]o_g d ]o__ d ]p_Y d ]s_W m ]z_W d ]}_Y d ]~__
+d ]~_g d ]}_l d ]z_n m ]j_I m ^R_x d ^R_v d ^S_v d ^S_x d ^R_x m ^R_z
+d ^S_z d ^U_x d ^U_v d ^S_t d ^R_t d ^P_v d ^P_x d ^R_| d ^S_~ d ^X`@
+d ^^`@ d ^c_~ d ^e_z d ^e_t d ^c_p d ^^_n m ^b_~ d ^c_z d ^c_t d ^b_p
+m ^]`@ d ^`_~ d ^b_z d ^b_t d ^`_p d ^]_n m ^Z_n d ^^_n d ^b_l d ^e_i
+d ^f_e d ^f__ d ^e_[ d ^c_Y d ^^_W d ^X_W d ^S_Y d ^R_[ d ^P__ d ^P_a
+d ^R_c d ^S_c d ^U_a d ^U__ d ^S_] d ^R_] m ^c_i d ^e_e d ^e__ d ^c_[
+m ^]_n d ^`_l d ^b_j d ^c_e d ^c__ d ^b_Y d ^^_W m ^R_a d ^R__ d ^S__
+d ^S_a d ^R_a m ^O_I m ^s`M m ^s_I m _R`M m _R_I m _q`M m _q_I m `P`M
+m `P_I m `o`M m `o_I m ad_z d ae`@ d ae_t d ad_z d aa_~ d a\`@ d aW`@
+d aR_~ d aO_z d aO_t d aQ_p d aU_l d a__i d ab_g d ad_c d ad_] d ab_Y
+m aQ_t d aR_p d aU_n d a__j d ab_i d ad_e m aR_~ d aQ_z d aQ_v d aR_r
+d aU_p d a__l d ad_i d ae_e d ae__ d ad_[ d ab_Y d a]_W d aY_W d aT_Y
+d aQ_] d aO_c d aO_W d aQ_] m aN_I m ]K^~ m ]K]z m ]s^p d ]o^o d ]m^k
+d ]m^e d ]o^a d ]s^_ d ]z^_ d ]~^a d ^@^e d ^@^k d ]~^o d ]z^p d ]s^p
+m ]p^o d ]o^k d ]o^e d ]p^a m ]}^a d ]~^e d ]~^k d ]}^o m ]s^p d ]r^o
+d ]p^k d ]p^e d ]r^a d ]s^_ m ]z^_ d ]{^a d ]}^e d ]}^k d ]{^o d ]z^p
+m ]s^_ d ]o^] d ]m^[ d ]k^W d ]k^O d ]m^K d ]o^J d ]s^H d ]z^H d ]~^J
+d ^@^K d ^B^O d ^B^W d ^@^[ d ]~^] d ]z^_ m ]o^[ d ]m^W d ]m^O d ]o^K
+m ]~^K d ^@^O d ^@^W d ]~^[ m ]s^_ d ]p^] d ]o^W d ]o^O d ]p^J d ]s^H
+m ]z^H d ]}^J d ]~^O d ]~^W d ]}^] d ]z^_ m ]j]z m ^]^k d ^]^H m ^^^m
+d ^^^J m ^`^p d ^`^H m ^`^p d ^O^S d ^h^S m ^X^H d ^e^H m ^]^J d ^Z^H
+m ^]^K d ^[^H m ^`^K d ^b^H m ^`^J d ^c^H m ^O]z m ^s^~ m ^s]z m _R^~
+m _R]z m _q^~ m _q]z m `P^~ m `P]z m `o^~ m `o]z m aN^p d aN^e m aY^p
+d aY^H m aZ^o d aZ^J m a\^p d a\^H m ag^p d ag^e m aN^p d ag^p m aT^H
+d aa^H m aO^p d aN^e m aQ^p d aN^k m aR^p d aN^m m aU^p d aN^o m a_^p
+d ag^o m ab^p d ag^m m ad^p d ag^k m ae^p d ag^e m aY^J d aU^H m aY^K
+d aW^H m a\^K d a]^H m a\^J d a_^H m aN]z m ]K]o m ]K\k m ]s]a d ]o]_
+d ]m][ d ]m]U d ]o]R d ]s]P d ]z]P d ]~]R d ^@]U d ^@][ d ]~]_ d ]z]a
+d ]s]a m ]p]_ d ]o][ d ]o]U d ]p]R m ]}]R d ]~]U d ]~][ d ]}]_ m ]s]a
+d ]r]_ d ]p][ d ]p]U d ]r]R d ]s]P m ]z]P d ]{]R d ]}]U d ]}][ d ]{]_
+d ]z]a m ]s]P d ]o]N d ]m]L d ]k]H d ]k]@ d ]m\| d ]o\z d ]s\x d ]z\x
+d ]~\z d ^@\| d ^B]@ d ^B]H d ^@]L d ]~]N d ]z]P m ]o]L d ]m]H d ]m]@
+d ]o\| m ]~\| d ^@]@ d ^@]H d ]~]L m ]s]P d ]p]N d ]o]H d ]o]@ d ]p\z
+d ]s\x m ]z\x d ]}\z d ]~]@ d ]~]H d ]}]N d ]z]P m ]j\k m ^S]a d ^P]N
+d ^S]R d ^X]S d ^]]S d ^b]R d ^e]N d ^f]H d ^f]D d ^e\~ d ^b\z d ^]\x
+d ^X\x d ^S\z d ^R\| d ^P]@ d ^P]B d ^R]D d ^S]D d ^U]B d ^U]@ d ^S\~
+d ^R\~ m ^c]N d ^e]J d ^e]B d ^c\~ m ^]]S d ^`]R d ^b]P d ^c]J d ^c]B
+d ^b\| d ^`\z d ^]\x m ^R]B d ^R]@ d ^S]@ d ^S]B d ^R]B m ^S]a d ^c]a
+m ^S]_ d ^`]_ m ^S]] d ^Z]] d ^`]_ d ^c]a m ^O\k m ^s]o m ^s\k m _R]o
+m _R\k m _q]o m _q\k m `P]o m `P\k m `o]o m `o\k m aR]a d aR]D d aS\~
+d aV\z d aZ\x d a]\x d aa\z d ac\~ d ae]D d ae]_ m aS]_ d aS]B 
+stroke
+m aS]B d aT\~ m aT]a d aT]B d aV\| d aW\z d aZ\x m aN]a d aX]a m aa]a
+d ai]a m aO]a d aR]_ m aP]a d aR]] m aV]a d aT]] m aW]a d aT]_ m ab]a
+d ae]_ m ag]a d ae]_ m aN\k m ]K\_ m ]K[[ m ]s\R d ]o\P d ]m\L d ]m\F
+d ]o\B d ]s\@ d ]z\@ d ]~\B d ^@\F d ^@\L d ]~\P d ]z\R d ]s\R m ]p\P
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+d ^XNi d ^`Nc d ^cNc d ^eNe d ^fNi m ^SNe d ^UNg d ^XNg d ^[Ne m ^PNa
+d ^RNc d ^UNe d ^XNe d ^`Nc m ^OMs m ^sNw m ^sMs m _RNw m _RMs m _qNw
+m _qMs m `PNw m `PMs m `oNw m `oMs m aRNV d aRNX d aTNX d aTNT d aQNT
+d aQNX d aRNZ d aUN[ d a\N[ d a_NZ d aaNX d abNT d abNF d adNB d aeN@
+m a_NX d aaNT d aaNF d abNB m a\N[ d a]NZ d a_NV d a_NF d aaNB d aeN@
+d agN@ m a_NR d a]NP d aUNN d aQNL d aONH d aONF d aQNB d aUN@ d aZN@
+d a]NB d a_NF m aRNL d aQNH d aQNF d aRNB m a]NP d aWNN d aTNL d aRNH
+d aRNF d aTNB d aUN@ m aNMs m ]KMg m ]KLc m ]oLy d ]oLw d ]pLw d ]pLy
+d ]oLy m ]~MH d ]}MD d ]{MC d ]xMA d ]uMA d ]pMC d ]mMF d ]kML d ]kMN
+d ]mMT d ]pMX d ]uMZ d ]xMZ d ]}MX d ^@MT d ^BMN d ^BMC d ^@L{ d ]~Lw
+d ]{Ls d ]vLq d ]rLq d ]oLs d ]mLw d ]mLy d ]oL{ d ]pL{ d ]rLy d ]rLw
+d ]pLu d ]oLu m ]oMF d ]mMJ d ]mMP d ]oMT m ]}MV d ]~MT d ^@MN d ^@MC
+d ]~L{ d ]}Lw m ]uMA d ]rMC d ]pMD d ]oMJ d ]oMP d ]pMV d ]rMX d ]uMZ
+m ]xMZ d ]{MX d ]}MT d ]~MN d ]~MA d ]}Ly d ]{Lu d ]zLs d ]vLq m ]jLc
+m ^XMZ d ^SMX d ^RMT d ^RMN d ^SMJ d ^XMH d ^^MH d ^cMJ d ^eMN d ^eMT
+d ^cMX d ^^MZ d ^XMZ m ^UMX d ^SMT d ^SMN d ^UMJ m ^bMJ d ^cMN d ^cMT
+d ^bMX m ^XMZ d ^VMX d ^UMT d ^UMN d ^VMJ d ^XMH m ^^MH d ^`MJ d ^bMN
+d ^bMT d ^`MX d ^^MZ m ^XMH d ^SMF d ^RMD d ^PMA d ^PLy d ^RLu d ^SLs
+d ^XLq d ^^Lq d ^cLs d ^eLu d ^fLy d ^fMA d ^eMD d ^cMF d ^^MH m ^SMD
+d ^RMA d ^RLy d ^SLu m ^cLu d ^eLy d ^eMA d ^cMD m ^XMH d ^UMF d ^SMA
+d ^SLy d ^ULs d ^XLq m ^^Lq d ^bLs d ^cLy d ^cMA d ^bMF d ^^MH m ^OLc
+m ^sMg m ^sLc m _RMg m _RLc m _qMg m _qLc m `PMg m `PLc m `oMg m `oLc
+m aRMZ d aRLq d aTLs d aWLs m aTMX d aTLu m aNMZ d aUMZ d aULs m aUMF
+d aWMJ d aZML d a]ML d aaMJ d adMF d afMA d afL} d adLw d aaLs d a]Lq
+d aZLq d aWLs d aULw m acMF d adMC d adL{ d acLw m a]ML d a`MJ d aaMH
+d acMC d acL{ d aaLu d a`Ls d a]Lq m aOMZ d aRMX m aQMZ d aRMV m aNLc
+m ]KLX m ]KKT m ]oKi d ]oKg d ]pKg d ]pKi d ]oKi m ]~Ky d ]}Ku d ]{Ks
+d ]xKq d ]uKq d ]pKs d ]mKw d ]kK} d ]kK? d ]mLE d ]pLI d ]uLK d ]xLK
+d ]}LI d ^@LE d ^BK? d ^BKs d ^@Kk d ]~Kg d ]{Kd d ]vKb d ]rKb d ]oKd
+d ]mKg d ]mKi d ]oKk d ]pKk d ]rKi d ]rKg d ]pKf 
+stroke
+m ]pKf d ]oKf m ]oKw d ]mK{ d ]mLA d ]oLE m ]}LG d ]~LE d ^@K? d ^@Ks
+d ]~Kk d ]}Kg m ]uKq d ]rKs d ]pKu d ]oK{ d ]oLA d ]pLG d ]rLI d ]uLK
+m ]xLK d ]{LI d ]}LE d ]~K? d ]~Kq d ]}Ki d ]{Kf d ]zKd d ]vKb m ]jKT
+m ^SKi d ^SKg d ^UKg d ^UKi d ^SKi m ^cKy d ^bKu d ^`Ks d ^]Kq d ^ZKq
+d ^UKs d ^RKw d ^PK} d ^PK? d ^RLE d ^ULI d ^ZLK d ^]LK d ^bLI d ^eLE
+d ^fK? d ^fKs d ^eKk d ^cKg d ^`Kd d ^[Kb d ^VKb d ^SKd d ^RKg d ^RKi
+d ^SKk d ^UKk d ^VKi d ^VKg d ^UKf d ^SKf m ^SKw d ^RK{ d ^RLA d ^SLE
+m ^bLG d ^cLE d ^eK? d ^eKs d ^cKk d ^bKg m ^ZKq d ^VKs d ^UKu d ^SK{
+d ^SLA d ^ULG d ^VLI d ^ZLK m ^]LK d ^`LI d ^bLE d ^cK? d ^cKq d ^bKi
+d ^`Kf d ^^Kd d ^[Kb m ^OKT m ^sLX m ^sKT m _RLX m _RKT m _qLX m _qKT
+m `PLX m `PKT m `oLX m `oKT m acKu d acKw d aaKw d aaKs d aeKs d aeKw
+d aaK{ d a^K} d aYK} d aTK{ d aQKw d aOKq d aOKm d aQKg d aTKd d aYKb
+d a\Kb d aaKd d aeKg m aRKw d aQKs d aQKk d aRKg m aYK} d aVK{ d aTKy
+d aRKs d aRKk d aTKf d aVKd d aYKb m aNKT m ]VJw d ]VJR m ]XJw d ]XJT
+m ]YJ{ d ]YJR m ]YJ{ d ]TJu d ]QJs m ]PJR d ]`JR m ]VJT d ]SJR m ]VJV
+d ]TJR m ]YJV d ][JR m ]YJT d ]\JR m ]KJE m ]{J{ d ]vJy d ]sJs d ]qJj
+d ]qJd d ]sJZ d ]vJT d ]{JR d ]~JR d ^CJT d ^FJZ d ^GJd d ^GJj d ^FJs
+d ^CJy d ]~J{ d ]{J{ m ]vJw d ]tJs d ]sJl d ]sJb d ]tJZ d ]vJV m ^CJV
+d ^DJZ d ^FJb d ^FJl d ^DJs d ^CJw m ]{J{ d ]xJy d ]vJu d ]tJl d ]tJb
+d ]vJX d ]xJT d ]{JR m ]~JR d ^AJT d ^CJX d ^DJb d ^DJl d ^CJu d ^AJy
+d ]~J{ m ]pJE m ^_J{ d ^[Jy d ^WJs d ^VJj d ^VJd d ^WJZ d ^[JT d ^_JR
+d ^cJR d ^gJT d ^kJZ d ^lJd d ^lJj d ^kJs d ^gJy d ^cJ{ d ^_J{ m ^[Jw
+d ^YJs d ^WJl d ^WJb d ^YJZ d ^[JV m ^gJV d ^iJZ d ^kJb d ^kJl d ^iJs
+d ^gJw m ^_J{ d ^\Jy d ^[Ju d ^YJl d ^YJb d ^[JX d ^\JT d ^_JR m ^cJR
+d ^fJT d ^gJX d ^iJb d ^iJl d ^gJu d ^fJy d ^cJ{ m ^TJE m ^yKI m ^yJE
+m _XKI m _XJE m _wKI m _wJE m `VKI m `VJE m `tKI m `tJE m afJ{ d afJR
+d amJR m agJy d agJT m aaJ{ d aiJ{ d aiJR m afJh d adJl d aaJn d a^Jn
+d aYJl d aVJh d aUJb d aUJ^ d aVJX d aYJT d a^JR d aaJR d adJT d afJX
+m aXJh d aVJd d aVJ\ d aXJX m a^Jn d a[Jl d aYJj d aXJd d aXJ\ d aYJV
+d a[JT d a^JR m acJ{ d afJy m adJ{ d afJw m aiJV d ajJR m aiJT d alJR
+m aSJE m ]VIh d ]VIC m ]XIh d ]XIE m ]YIl d ]YIC m ]YIl d ]TIf d ]QId
+m ]PIC d ]`IC m ]VIE d ]SIC m ]VIG d ]TIC m ]YIG d ][IC m ]YIE d ]\IC
+m ]KHu m ]{Il d ]vIj d ]sId d ]qIZ d ]qIT d ]sIK d ]vIE d ]{IC d ]~IC
+d ^CIE d ^FIK d ^GIT d ^GIZ d ^FId d ^CIj d ]~Il d ]{Il m ]vIh d ]tId
+d ]sI\ d ]sIS d ]tIK d ]vIG m ^CIG d ^DIK d ^FIS d ^FI\ d ^DId d ^CIh
+m ]{Il d ]xIj d ]vIf d ]tI\ d ]tIS d ]vII d ]xIE d ]{IC m ]~IC d ^AIE
+d ^CII d ^DIS d ^DI\ d ^CIf d ^AIj d ]~Il m ]pHu m ^_Ih d ^_IC m ^aIh
+d ^aIE m ^cIl d ^cIC m ^cIl d ^^If d ^[Id m ^YIC d ^iIC m ^_IE d ^\IC
+m ^_IG d ^^IC m ^cIG d ^dIC m ^cIE d ^fIC m ^THu m ^yIy m ^yHu m _XIy
+m _XHu m _wIy m _wHu m `VIy m `VHu m `tIy m `tHu m aXIS d ajIS d ajIV
+d aiIZ d agI\ d abI^ d a_I^ d aZI\ d aWIX d aUIS d aUIO d aWII d aZIE
+d a_IC d abIC d agIE d ajII m aiIT d aiIV d agIZ m aXIX d aWIT d aWIM
+d aXII m agIS d agIX d aeI\ d abI^ m a_I^ d a\I\ d aZIZ d aXIT d aXIM
+d aZIG d a\IE d a_IC m aSHu m ]VHY d ]VGt m ]XHY d ]XGv m ]YH\ d ]YGt
+m ]YH\ d ]THW d ]QHU m ]PGt d ]`Gt m ]VGv d ]SGt m ]VGx d ]TGt m ]YGx
+d ][Gt m ]YGv d ]\Gt m ]KGf m ]{H\ d ]vH[ d ]sHU d ]qHK d ]qHE d ]sG{
+d ]vGv d ]{Gt d ]~Gt d ^CGv d ^FG{ d ^GHE d ^GHK d ^FHU d ^CH[ d ]~H\
+d ]{H\ m ]vHY d ]tHU d ]sHM d ]sHC d ]tG{ d ]vGx m ^CGx d ^DG{ d ^FHC
+d ^FHM d ^DHU d ^CHY m ]{H\ d ]xH[ d ]vHW d ]tHM d ]tHC d ]vGy d ]xGv
+d ]{Gt m ]~Gt d ^AGv d ^CGy d ^DHC d ^DHM d ^CHW d ^AH[ d ]~H\ m ]pGf
+m ^WHU d ^WHS d ^YHS d ^YHU d ^WHU m ^WHW d ^YHW d ^[HU d ^[HS d ^YHQ
+d ^WHQ d ^VHS d ^VHU d ^WHY d ^YH[ d ^^H\ d ^dH\ d ^iH[ d ^kHY d ^lHU
+d ^lHQ d ^kHM d ^fHI d ^^HE d ^[HC d ^WG? d ^VGy d ^VGt m ^iHY d ^kHU
+d ^kHQ d ^iHM m ^dH\ d ^gH[ d ^iHU d ^iHQ d ^gHM d ^dHI d ^^HE m ^VGx
+d ^WGy d ^[Gy d ^cGx d ^iGx d ^lGy m ^[Gy d ^cGv d ^iGv d ^kGx m ^[Gy
+d ^cGt d ^iGt d ^kGv d ^lGy d ^lG} m ^TGf m ^yHj m ^yGf m _XHj m _XGf
+m _wHj m _wGf m `VHj m `VGf m `tHj m `tGf m ahHY d ahH[ d afH[ d afHW
+d ajHW d ajH[ d ahH\ d abH\ d a^H[ d a\HY d aZHS d aZGt m a^HY d a\HS
+d a\Gv m abH\ d a`H[ d a^HW d a^Gt m aSHO d afHO m aSGt d adGt m aZGv
+d aUGt m aZGx d aXGt m a^Gx d a`Gt m a^Gv d abGt m aSGf m ]VGI d ]VFd
+m ]XGI d ]XFf m ]YGM d ]YFd m ]YGM d ]TGG d ]QGE m ]PFd d ]`Fd m ]VFf
+d ]SFd m ]VFh d ]TFd m ]YFh d ][Fd m ]YFf d ]\Fd m ]KFW m ]{GM d ]vGK
+d ]sGE d ]qF| d ]qFv d ]sFl d ]vFf d ]{Fd d ]~Fd d ^CFf d ^FFl d ^GFv
+d ^GF| d ^FGE d ^CGK d ]~GM d ]{GM m ]vGI d ]tGE d ]sF~ d ]sFt d ]tFl
+d ]vFh m ^CFh d ^DFl d ^FFt d ^FF~ d ^DGE d ^CGI m ]{GM d ]xGK d ]vGG
+d ]tF~ d ]tFt d ]vFj d ]xFf d ]{Fd m ]~Fd d ^AFf d ^CFj d ^DFt d ^DF~
+d ^CGG d ^AGK d ]~GM m ]pFW m ^WGE d ^WGC d ^YGC d ^YGE d ^WGE m ^WGG
+d ^YGG d ^[GE d ^[GC d ^YGA d ^WGA d ^VGC d ^VGE d ^WGI d ^YGK d ^^GM
+d ^dGM d ^iGK d ^kGG d ^kGA d ^iF~ d ^dF| m ^gGK d ^iGG 
+stroke
+m ^iGG d ^iGA d ^gF~ m ^cGM d ^fGK d ^gGG d ^gGA d ^fF~ d ^cF| m ^_F|
+d ^dF| d ^gFz d ^kFv d ^lFr d ^lFl d ^kFh d ^iFf d ^dFd d ^^Fd d ^YFf
+d ^WFh d ^VFl d ^VFn d ^WFp d ^YFp d ^[Fn d ^[Fl d ^YFj d ^WFj m ^iFv
+d ^kFr d ^kFl d ^iFh m ^cF| d ^fFz d ^gFx d ^iFr d ^iFl d ^gFf d ^dFd
+m ^WFn d ^WFl d ^YFl d ^YFn d ^WFn m ^TFW m ^yG[ m ^yFW m _XG[ m _XFW
+m _wG[ m _wFW m `VG[ m `VFW m `tG[ m `tFW m aiF~ d ajF| d alF~ d ajG@
+d aiG@ d aeF~ d adF| m a]G@ d aZF~ d aXF| d aWFx d aWFt d aXFp d aZFn
+d a]Fl d aaFl d adFn d aeFp d agFt d agFx d aeF| d adF~ d aaG@ d a]G@
+m aZF| d aXFx d aXFt d aZFp m adFp d aeFt d aeFx d adF| m a]G@ d a\F~
+d aZFz d aZFr d a\Fn d a]Fl m aaFl d abFn d adFr d adFz d abF~ d aaG@
+m aXFp d aWFn d aUFj d aUFh d aWFd d aXFb d a]F` d adF` d aiF_ d ajF]
+m aXFd d a]Fb d adFb d aiF` m aUFh d aWFf d a\Fd d adFd d aiFb d ajF_
+d ajF] d aiFY d adFW d aZFW d aUFY d aSF] d aSF_ d aUFb d aZFd m aZFW
+d aWFY d aUF] d aUF_ d aWFb d aZFd m aSFW m iqcj d iqcE m iscj d iscG
+m itcn d itcE m itcn d ipch d ilcf m ikcE d i{cE m iqcG d incE m iqcI
+d ipcE m itcI d ivcE m itcG d iwcE m ifbw m jVcn d jQcl d jNcf d jLc\
+d jLcV d jNcM d jQcG d jVcE d jYcE d j^cG d jacM d jbcV d jbc\ d jacf
+d j^cl d jYcn d jVcn m jQcj d jOcf d jNc^ d jNcU d jOcM d jQcI m j^cI
+d j_cM d jacU d jac^ d j_cf d j^cj m jVcn d jScl d jQch d jOc^ d jOcU
+d jQcK d jScG d jVcE m jYcE d j\cG d j^cK d j_cU d j_c^ d j^ch d j\cl
+d jYcn m jKbw m j~ch d j~cE m j?cj d j?cG m kAcn d kAcE m kAcn d jocQ
+d kIcQ m jycE d kFcE m j~cG d jzcE m j~cI d j|cE m kAcI d kBcE m kAcG
+d kDcE m jobw m kTc{ m kTbw m ksc{ m ksbw m lRc{ m lRbw m lqc{ m lqbw
+m mPc{ m mPbw m mscn d mscE m mtcl d mtcG m mncn d mucn d mucE m mucX
+d mwc\ d mxc^ d m{c` d m?c` d nBc^ d nDc\ d nEcV d nEcE m nBc\ d nDcV
+d nDcG m m?c` d nAc^ d nBcX d nBcE m mncE d mzcE m m~cE d nIcE m mpcn
+d mscl m mqcn d mscj m mscG d mpcE m mscI d mqcE m mucI d mwcE m mucG
+d mxcE m nBcG d m?cE m nBcI d nAcE m nEcI d nFcE m nEcG d nHcE m mnbw
+m iqb[ d iqav m isb[ d isax m itb^ d itav m itb^ d ipbY d ilbW m ikav
+d i{av m iqax d inav m iqaz d ipav m itaz d ivav m itax d iwav m ifah
+m jVb^ d jQb] d jNbW d jLbM d jLbG d jNa} d jQax d jVav d jYav d j^ax
+d jaa} d jbbG d jbbM d jabW d j^b] d jYb^ d jVb^ m jQb[ d jObW d jNbO
+d jNbE d jOa} d jQaz m j^az d j_a} d jabE d jabO d j_bW d j^b[ m jVb^
+d jSb] d jQbY d jObO d jObE d jQa{ d jSax d jVav m jYav d j\ax d j^a{
+d j_bE d j_bO d j^bY d j\b] d jYb^ m jKah m jtb^ d jqbK d jtbO d jybQ
+d j~bQ d kBbO d kFbK d kGbE d kGbA d kFa{ d kBax d j~av d jyav d jtax
+d jraz d jqa} d jqa? d jrbA d jtbA d jva? d jva} d jta{ d jra{ m kDbK
+d kFbG d kFa? d kDa{ m j~bQ d kAbO d kBbM d kDbG d kDa? d kBaz d kAax
+d j~av m jra? d jra} d jta} d jta? d jra? m jtb^ d kDb^ m jtb] d kAb]
+m jtb[ d jzb[ d kAb] d kDb^ m joah m kTbl m kTah m ksbl m ksah m lRbl
+m lRah m lqbl m lqah m mPbl m mPah m mub^ d mub[ d mzb[ d mzb^ d mub^
+m mxb^ d mxb[ m mub] d mzb] m mubQ d muav m mxbO d mxax m mnbQ d mzbQ
+d mzav m mnav d nAav m mqbQ d mubO m msbQ d mubM m muax d mqav m muaz
+d msav m mzaz d m|av m mzax d m?av m mnah m iqaK d iq`f m isaK d is`h
+m itaO d it`f m itaO d ipaI d ilaG m ik`f d i{`f m iq`h d in`f m iq`j
+d ip`f m it`j d iv`f m it`h d iw`f m if`Y m jVaO d jQaM d jNaG d jL`~
+d jL`x d jN`n d jQ`h d jV`f d jY`f d j^`h d ja`n d jb`x d jb`~ d jaaG
+d j^aM d jYaO d jVaO m jQaK d jOaG d jNa@ d jN`v d jO`n d jQ`j m j^`j
+d j_`n d ja`v d jaa@ d j_aG d j^aK m jVaO d jSaM d jQaI d jOa@ d jO`v
+d jQ`l d jS`h d jV`f m jY`f d j\`h d j^`l d j_`v d j_a@ d j^aI d j\aM
+d jYaO m jK`Y m kBaI d kBaG d kDaG d kDaI d kBaI m kDaK d kBaK d kAaI
+d kAaG d kBaE d kDaE d kFaG d kFaI d kDaM d kAaO d j|aO d jwaM d jtaI
+d jraE d jq`~ d jq`r d jr`l d jv`h d jz`f d j~`f d kB`h d kF`l d kG`r
+d kG`t d kF`z d kB`~ d j~a@ d jza@ d jw`~ d jv`| d jt`x m jvaI d jtaE
+d jr`~ d jr`r d jt`l d jv`j m kD`l d kF`p d kF`v d kD`z m j|aO d jyaM
+d jwaK d jvaG d jta@ d jt`r d jv`l d jw`h d jz`f m j~`f d kA`h d kB`j
+d kD`p d kD`v d kB`| d kA`~ d j~a@ m jo`Y m kTa] m kT`Y m ksa] m ks`Y
+m lRa] m lR`Y m lqa] m lq`Y m mPa] m mP`Y m myaO d myaK d m~aK d m~aO
+d myaO m m|aO d m|aK m myaM d m~aM m myaB d my`a d mw`[ d mu`Y m m|a@
+d m|`b d my`] m msaB d m~aB d m~`b d m|`] d my`[ d mu`Y d mn`Y d mn`[
+d mn`_ d mq`_ d mq`[ d mn`[ d mn`] m muaB d mya@ m mwaB d my`~ m mn`Y
+m iq_| d iq_W m is_| d is_Y m it`@ d it_W m it`@ d ip_z d il_x m ik_W
+d i{_W m iq_Y d in_W m iq_[ d ip_W m it_[ d iv_W m it_Y d iw_W m if_I
+m jV`@ d jQ_~ d jN_x d jL_n d jL_i d jN__ d jQ_Y d jV_W d jY_W d j^_Y
+d ja__ d jb_i d jb_n d ja_x d j^_~ d jY`@ d jV`@ m jQ_| d jO_x d jN_p
+d jN_g d jO__ d jQ_[ m j^_[ d j___ d ja_g d ja_p d j__x d j^_| m jV`@
+d jS_~ d jQ_z d jO_p d jO_g d jQ_] d jS_Y d jV_W m jY_W d j\_Y d j^_]
+d j__g d j__p d j^_z d j\_~ d jY`@ m jK_I m jq`@ d jq_t m kG`@ d kG_z
+d kF_t d j?_j d j~_g d j|__ d j|_W m j~_i d j|_e d jz__ d jz_W m kF_t
+d j~_j d jz_e d jy__ d jy_W d j|_W m jq_x d jr_| d jv`@ d jy`@ d kA_z
+d kD_z d kF_| d kG`@ m jt_| d jv_~ d jy_~ d j|_| m jq_x d jr_z 
+stroke
+m jr_z d jv_| d jy_| d kA_z m jo_I m kT`M m kT_I m ks`M m ks_I m lR`M
+m lR_I m lq`M m lq_I m mP`M m mP_I m ms`@ d ms_W m mt_~ d mt_Y m mn`@
+d mv`@ d mv_W m nC_p d mv__ m m|_g d nF_W m m|_e d nD_W m mz_e d nC_W
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+stroke
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+stroke
+m kGGM m jtGI d jvGK d jyGK d j|GI m jqGE d jrGG d jvGI d jyGI d kAGG
+m joFW m kTG[ m kTFW m ksG[ m ksFW 
+stroke
+/Times-Roman findfont 24 scalefont setfont
+initmatrix
+-1 72 mul 300 div 1 72 mul 300 div scale
+-2409 88 translate
+1600 3150 moveto
+[1 0 0 -1 0 0] concat
+(NOAO/IRAF  fitz@pisces  Mon Jun 30 10:37:53 1997
+) show
+showpage
diff --git a/vendor/x11iraf/cdl/doc/vximtool.man b/vendor/x11iraf/cdl/doc/vximtool.man
new file mode 100644
index 00000000..66f2afb7
--- /dev/null
+++ b/vendor/x11iraf/cdl/doc/vximtool.man
@@ -0,0 +1,276 @@
+.\" @(#)vximtool.1 1.1 18-Jun-97 MJF
+.TH VXIMTOOL 1 "18 Jun 1997" "IRAF Project"
+.SH NAME
+vximtool \-- A virtual and/or proxy display server for IRAF IIS protocol clients
+.SH SYNOPSIS
+\fBvximtool\fP [ \fIoptions\fP ...]
+.br
+\fBvximtool\fP -proxy [ \fIoptions ...] server [ server\fP ... ]
+
+.SH "DESCRIPTION"
+.LP
+\fIVXIMTOOL\fR is a image display server process much like \fIXIMTOOL\fR,
+except that all it normally does is respond to datastream requests
+to read and write to internal frame buffers maintained as arrays in memory.
+Multiple frame buffers and frame buffer configurations are supported.  It
+can be used to debug IIS protocol client programs by printing out the 
+protocol packets recieved, or can simply be used as a dummy server in cases
+where no image display is really needed.  By enabling the \fI-proxy\fR
+flag the server can also be used to repeat the datastream requests to a
+list of other servers, effectively splitting the image display to a number
+of other servers.  See below for details on using the program in this
+manner.
+
+The \fI-verbose\fR flag will log all datastream requests to the stderr, 
+otherwise the task runs silently except for error messages.  The process is
+terminated with an EOF on the stdin, if the task is intended to be run
+as a background job the \fI-background\fR flag should be enabled to shut 
+off the check of the stdin and avoid a "waiting for tty input" message that
+would suspend the background job.  Frame buffers are maintained as rasters
+in memory, up to four frames may currently be defined.  If it not necessary
+to keep the displayed images in memory (i.e. the client will not need to
+read back any subrasters such as when doing overlay graphics), the 
+\fI-noraster\fR flag can be used to disable the memory rasters.  In this
+case any image readback will return an array of zero values.
+
+The default frame buffer size is 512x512, with 2 frames defined initially.
+The \fI-config\fR and \fI-nframes\fR flags can be used to change the 
+startup frame buffers used.  The frame buffer configuration table is normally
+taken to be /usr/local/lib/imtoolrc but can be overridden by using an
+IMTOOLRC environment variable, a \fI$HOME/.imtoolrc\fR file, or 
+the \fI-imtoolrc\fR command-line flag respectively.  The format of the
+frame buffer configuration file is
+
+     \fIconfigno nframes width height [extra fields]\fP
+ e.g.
+          1  2  512  512
+          2  2  800  800
+          3  1 1024 1024          # comment
+
+and so on.  At most 128 frame buffer sizes may be defined, each configuration
+may define up to 4 frames, configuration numbers need not be sequential.
+
+.SH OPTIONS
+.TP 5
+.B "-background"
+The task will be run in the background so don't listen to STDIN for an
+EOF to quit gracefully.
+.TP 5
+.B "-config \fInum\fP"
+Initial frame buffer configuration number.  The default value is 1, indicating
+a 512x512 frame buffer with 2 frames.  See below for information on the frame
+buffers.
+.TP 5
+.B "-fifo \fIpipe\fP"
+Specifies the name of the fifo pipe to be used, the \fIi\fP 
+and \fIo\fP suffixes will be added automatically.  The default pipe names
+will be /dev/imt1i (input pipe) and /dev/imt1o (output pipe).
+.TP 5
+.B "-fifo_only"
+If set, only fifo pipes will be used for communication with a client program,
+sockets will be disabled.
+.TP 5
+.B "-help"
+Print a summary of command line options to the screen.
+.TP 5
+.B "-interactive"
+Allow cursor value strings to be typed into the STDIN in response to cursor
+read requests from the client.
+.TP 5
+.B "-imtoolrc \fIfile\fP"
+Specifies the frame buffer configuration file to be used.  See below for 
+information on frame buffers.
+.TP 5
+.B "-inet_only"
+If set, only inet sockets will be used for communication with a client program,
+fifo pipes and unix sockets will be disabled.
+.TP 5
+.B "-noraster"
+If set no client data will be stored in memory, and image readback will
+return an array of zeroes unless used as a proxy server.
+.TP 5
+.B "-nframes \fInum\fP"
+Specifies the number of frame buffers to configure at startup.  By default
+there will be 2 frames available, a maximum of 4 frames are allowed.
+.TP 5
+.B "-port_only"
+Same as \fI-inet_only\fP option.  If set, only inet sockets will be used for
+communication with a client program.
+.TP 5
+.B "-port \fInum\fP"
+Set the primary port to listen on for client connections.  The default
+is 5137 except when used as a proxy server in which case the default is
+5136.
+.TP 5
+.B "-proxy"
+Run as a proxy server by repeating client requests to each of the
+\fIserver\fR remote server arguments.  See the section on proxy usage
+below for details.
+.TP 5
+.B "-verbose"
+If set, print information about all IIS packets headers recieved to the 
+STDERR stream.
+.TP 5
+.B "-unix \fIname\fP"
+Specifies the unix domain socket name to use.  A "%d" in the filename will
+be replaced with the user id.
+.TP 5
+.B "-unix_only"
+If set, only unix domain sockets will be used for communication with a client
+program, inet sockets and fifos will be disabled.
+
+.SH "CLIENT CONNECTIONS"
+
+\fIVXImtool\fR allows clients to connect in any of the following ways:
+.TP 5
+.B "fifo pipes"
+The traditional approach. The default global /dev/imt1[io] 
+pipes may be used, or a private set of fifos can be specified using the
+\fI-fifo\fP command line argument.  Values should be specified as the root
+pathname to a pair of fifo pipes whose last character is 'i' or 'o',  
+these characters will be added automatically when opening the pipes.  
+For example, to use the default pipes the path would be specified as simply
+"/dev/imt1". A value of "none" disables this connection.
+.TP 5
+.B "tcp/ip sockets"
+Clients connect via a tcp/ip socket. The default port is \fI5137\fP, or a
+custom port may be specified using the \fI-port\fP command line switch.
+This permits connecting to the server over a remote network connection 
+anywhere on the Internet.   When used as a proxy server the default port
+number is 5136 so as to avoid a conflict with an XImtool running on the
+same machine, other connections are disabled unless otherwise overridden
+by a command line option following the \fI-proxy\fR flag to reset the
+connection.  A port number of 0 (zero) disables this connection.
+.TP 5
+.B "unix domain sockets"
+Like a tcp/ip socket, but limited to a single host system. Usually faster
+than a tcp/ip socket, and comparable to a fifo. By default each user gets
+their own unix domain socket, so this option allows multiple users to run
+ximtools on the same host without having to customize things.  The default
+value is "/tmp/.IMT%d", other sockets may be defined using the \fI-unix\fP
+command line switch.  Legal values should be specified as a filename to be
+used for the socket, up to two "%d" fields are allowed and will be replaced
+by the userid. An empty string value disables this connection.
+.LP
+By default \fIvximtool\fR listens simultaneously for client connections on all
+three types of ports.   Clients may connect simultaneously by different 
+means allowing up to three different displays to be loading at the same
+time into different frames.
+
+.SH "COMMUNICATIONS PROTOCOL"
+
+Clients communicate with \fIvximtool\fR using a protocol developed originally
+for IIS (International Imaging Systems) Frame Buffer hardware, the so-called
+"IIS protocol"; other more modern protocols will likely be supported in the
+future.  The IIS protocol is basically a command packet stream with a header
+describing the operation to be performed (select frame, load display, read
+cursor, etc), and an optional data packet containing e.g. pixels. It is
+beyond the scope of this document to describe fully the details of the
+protocol; interested users should contact \fIiraf@noao.edu\fP for further
+information or see the \fIA Reference Guide for the IRAF Client Display
+Library\fR for details.
+
+.SH "PROXY USAGE"
+
+The \fIvximtool\fR may also be used as a proxy server by enabling the
+\fI-proxy\fR command line flag.  In this mode the program acts as
+a relay for the IIS datastream packets, sending image data, frame requests,
+etc. to a list of other servers specified on the command line.  The effect
+of this is to allow a client to display to this program which then
+re-displays to each of the other named servers.  A maximum of 8 servers
+may be named, they may be either on the local host or a remote machine 
+and connections can be established using either fifos or sockets.  See
+below for details on how to specify the server connection.
+
+The current implementation has a few restrictions users should keep in mind:
+.IP
+Cursor and image readback are done by sending the request \fIonly\fR to
+the first server named on the command line.  This is done to avoid forcing
+a cursor mode on all servers which cannot be terminated when a response is
+received from only one server, and means that the first server named should
+be the one used to control interactive sessions.  The remaining servers
+however can still respond to cursor requests from other applications connected
+to that server on another channel.
+.IP
+All named servers must be running prior to starting the proxy server.  The
+connection to the remote servers is established when this task is first run
+and if no server is running that connection will be ignored.  The task will
+exit if no remote servers can be found for display.
+.IP
+Any connected server that shuts down while the proxy server is running is
+likely to cause the program to crash on the next display. 
+
+.SH "SPECIFYING THE REMOTE SERVER CONNECTION"
+
+The syntax for the server argument used in proxy mode is as follows:
+
+            \fI<domain> : <address>\fR
+
+where <domain> is one of \fBinet\fR (internet tcp/ip socket), \fBunix\fR
+(unix domain socket) or \fBfifo\fR (named pipe).  The form of the address
+depends upon the domain, as illustrated in the examples below.
+
+.TP 30
+inet:5137                   
+Connect to port 5137 on the local host.
+.TP 30
+inet:5137:foo.bar.edu       
+Client connection to port 5137 on internet host \fIfoo.bar.edu\fR.
+The dotted (numeric) form of address may also be used.
+.TP 30
+unix:/tmp/.IMT212           
+Unix domain socket with the given pathname. IPC method, local host only.
+.TP 30
+fifo:/dev/imt1i:/dev/imt1o  
+FIFO or named pipe with the given pathname.  IPC method, local host only.
+Two pathnames are required, one for input and one for output, since FIFOs
+are not bidirectional. 
+.LP
+The address field may contain up to two "%d" fields.  If present, the
+user's UID will be substituted (e.g. "unix:/tmp/.IMT%d").
+
+.SH "EXAMPLES"
+
+.TP 5
+1) Run the vximtool, logging output to the file named "spool":
+
+    \f(CW% vximtool -verbose >& spool\fR
+.TP 5
+2) Run the vximtool in the background, connect only on unix sockets, no output:
+
+    \f(CW% vximtool -b -unix_only &\fR
+.TP 5
+3) Don't store images in memory, start with initial 1024x1024 frame buffer:
+
+    \f(CW% vximtool -noraster -config 3\fR
+.TP 5
+4) Run the vximtool in the background, taking cursor input from a file:
+
+    \f(CW% vximtool -i < cursor_file &\fR
+.TP 5
+5) Run as a proxy server, displaying to both a local and a remote XImtool, log output to stderr:
+
+        \fI...start all XImtool servers to be used\fP
+    \f(CW% vximtool -v -proxy unix:/tmp/.IMT%d inet:5137:pisces
+    Connected to server on unix:/tmp/.IMT359
+    Connected to server on inet:5137:pisces
+    Open to accept input on inet: port 5136\fR
+
+.LP
+To display to the proxy server the client should connect to the vximtool on
+\fIinet:5136\fP, the proxy in turn will relay data to the servers listed on
+the command line.  Note that in this last example any cursor requests from
+the client connected to the vximtool will be handled by the
+ximtool connected on a unix socket on the local machine (i.e. the first
+server argument).  The remote ximtool
+on the machine pisces could simultaneously be used by another client on
+that machine connected by some other means.  In this case it will only
+display images coming from the \fIvximtool\fR proxy, but could be used in 
+an interactive IRAF session running on pisces to examine the images.
+
+.SH SEE ALSO
+ximtool(1)
+.br
+\fIA Reference Guide for the IRAF Client Display Library (CDL)\fR
+.SH COPYRIGHT
+Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
diff --git a/vendor/x11iraf/cdl/doc/vximtool.ps b/vendor/x11iraf/cdl/doc/vximtool.ps
new file mode 100644
index 00000000..70cae4f5
--- /dev/null
+++ b/vendor/x11iraf/cdl/doc/vximtool.ps
@@ -0,0 +1,2472 @@
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\ No newline at end of file