Initial commit

12 files changed, 1651 insertions, 0 deletions

diff --git a/vendor/x11iraf/cdl/examples/Imakefile b/vendor/x11iraf/cdl/examples/Imakefile
new file mode 100644
index 00000000..ef6c3d97
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/Imakefile
@@ -0,0 +1,36 @@
+# 
+#  IMakefile for CDL Example tasks.
+# 
+
+X11IRAFDIR = ../../
+#include <../../X11IRAF.tmpl>
+
+
+    CDEBUGFLAGS = -g
+        FCFLAGS = -g
+         CDLDIR = ../
+       INCLUDES = -I. -I$(CDLDIR)
+  LOCAL_LDFLAGS = -L$(CDLDIR)
+           LIBS =  -lcdl
+
+
+AllTarget(animate display mosaic tvmark fdisplay ftvmark)
+
+NormalFortranObjectRule()
+
+NormalProgramTarget(animate,animate.o,../libcdl.a,$(LIBS),-lm)
+NormalProgramTarget(display,display.o,../libcdl.a,$(LIBS),-lm)
+NormalProgramTarget(mosaic,mosaic.o,../libcdl.a,$(LIBS),-lm)
+NormalProgramTarget(tvmark,tvmark.o,../libcdl.a,$(LIBS),-lm)
+
+fdisplay: fdisplay.o ../libcdl.a
+	f77 -o fdisplay fdisplay.o ../libcdl.a -lm $(LDLIBS)
+
+ftvmark: ftvmark.o ../libcdl.a
+	f77 -o ftvmark ftvmark.o ../libcdl.a -lm $(LDLIBS)
+
+clean::
+	$(RM) fdisplay ftvmark
+
+DependTarget()
+LintTarget()
diff --git a/vendor/x11iraf/cdl/examples/Imakefile.standalone b/vendor/x11iraf/cdl/examples/Imakefile.standalone
new file mode 100644
index 00000000..8886ae9e
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/Imakefile.standalone
@@ -0,0 +1,54 @@
+# 
+#  IMakefile for CDL Example tasks.
+# 
+
+    CDEBUGFLAGS = -g
+        FCFLAGS = -g
+         CDLDIR = ../
+       INCLUDES = -I. -I$(CDLDIR)
+  LOCAL_LDFLAGS = -L$(CDLDIR)
+           LIBS =  -lcdl
+
+
+# Hack to compile under SunPRO V4 on Solaris
+#if defined (SunArchitecture)  &&  OSMajorVersion >= 5 && HasSunC
+#if OSMinorVersion <= 5
+#if !defined (i386Architecture)
+      CCOPTIONS = -Xs
+EXTRA_LDOPTIONS = -xildoff
+#endif
+#else
+      CCOPTIONS =
+EXTRA_LDOPTIONS = -xildoff
+#endif
+
+#else
+#if defined (UltrixArchitecture)
+        CCOPTIONS = -DULTRIX
+#endif
+#if defined (OSF1Architecture) && OSMajorVersion >= 4
+        CCOPTIONS = -DOSF1
+#endif
+#endif
+
+
+AllTarget(animate display mosaic tvmark fdisplay ftvmark)
+
+NormalFortranObjectRule()
+
+NormalProgramTarget(animate,animate.o,../libcdl.a,$(LIBS),-lm)
+NormalProgramTarget(display,display.o,../libcdl.a,$(LIBS),-lm)
+NormalProgramTarget(mosaic,mosaic.o,../libcdl.a,$(LIBS),-lm)
+NormalProgramTarget(tvmark,tvmark.o,../libcdl.a,$(LIBS),-lm)
+
+fdisplay: fdisplay.o ../libcdl.a
+	f77 -o fdisplay fdisplay.o ../libcdl.a -lm $(LDLIBS)
+
+ftvmark: ftvmark.o ../libcdl.a
+	f77 -o ftvmark ftvmark.o ../libcdl.a -lm $(LDLIBS)
+
+clean::
+	$(RM) fdisplay ftvmark
+
+DependTarget()
+LintTarget()
diff --git a/vendor/x11iraf/cdl/examples/Makefile.generic b/vendor/x11iraf/cdl/examples/Makefile.generic
new file mode 100644
index 00000000..fae978aa
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/Makefile.generic
@@ -0,0 +1,102 @@
+#
+# Generic Makefile for CDL Example tasks.
+#
+
+    CDEBUGFLAGS = -g
+        FCFLAGS = -g
+             RM = rm
+         CDLDIR = ../
+       INCLUDES = -I. -I$(CDLDIR)
+        LDFLAGS = -L$(CDLDIR)
+           LIBS =  -lcdl
+
+         LDLIBS = 
+
+all:: display mosaic tvmark fdisplay ftvmark
+
+.c.o:
+	$(RM) -f $@
+	$(CC) -c $(INCLUDES) $(CFLAGS) $*.c
+
+.f.o:
+	$(RM) -f $@
+	$(FC) -c $(FCFLAGS) $*.f
+
+display: display.o ../libcdl.a
+	$(RM) -f $@
+	$(CC) -o $@ display.o $(LDFLAGS) $(LDOPTIONS) $(LIBS) $(LDLIBS) -lm
+
+clean::
+	$(RM) -f display
+
+mosaic: mosaic.o ../libcdl.a
+	$(RM) -f $@
+	$(CC) -o $@ mosaic.o $(LDFLAGS) $(LDOPTIONS) $(LIBS) $(LDLIBS) -lm
+
+clean::
+	$(RM) -f mosaic
+
+tvmark: tvmark.o ../libcdl.a
+	$(RM) -f $@
+	$(CC) -o $@ tvmark.o $(LDFLAGS) $(LDOPTIONS) $(LIBS) $(LDLIBS) -lm
+
+clean::
+	$(RM) -f tvmark
+
+fdisplay: fdisplay.o ../libcdl.a
+	f77 -o fdisplay fdisplay.o ../libcdl.a -lm $(LDLIBS)
+
+ftvmark: ftvmark.o ../libcdl.a
+	f77 -o ftvmark ftvmark.o ../libcdl.a -lm $(LDLIBS)
+
+clean::
+	$(RM) -f fdisplay ftvmark
+
+depend::
+
+lint:
+	$(LINT) $(LINTFLAGS) $(SRCS) $(LINTLIBS)
+lint1:
+	$(LINT) $(LINTFLAGS) $(FILE) $(LINTLIBS)
+
+clean::
+	$(RM) -f *.o
+
+# -------------------------------------------------------------------------
+# common rules for all Makefiles - do not edit
+
+emptyrule::
+
+Makefile::
+	-@if [ -f Makefile ]; then set -x; \
+	$(RM) -f Makefile.bak; $(MV) Makefile Makefile.bak; \
+	else exit 0; fi
+	$(IMAKE_CMD) -DTOPDIR=$(TOP) -DCURDIR=$(CURRENT_DIR)
+
+tags::
+	$(TAGS) -w *.[ch]
+	$(TAGS) -xw *.[ch] > TAGS
+
+saber:
+	# load $(ALLDEFINES) $(SRCS)
+
+osaber:
+	# load $(ALLDEFINES) $(OBJS)
+
+# -------------------------------------------------------------------------
+# empty rules for directories that do not have SUBDIRS - do not edit
+
+install::
+	@echo "install in $(CURRENT_DIR) done"
+
+install.man::
+	@echo "install.man in $(CURRENT_DIR) done"
+
+Makefiles::
+
+includes::
+
+# -------------------------------------------------------------------------
+# dependencies generated by makedepend
+
+# DO NOT DELETE
diff --git a/vendor/x11iraf/cdl/examples/README b/vendor/x11iraf/cdl/examples/README
new file mode 100644
index 00000000..fb0f58de
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/README
@@ -0,0 +1,25 @@
+CDL PACKAGE EXAMPLES --  This directory contains several example programs
+to demostrate usage of the Client Display library.  Programs are available
+in both C and Fortran.  These are working examples but perhaps not the most
+highly efficient code since they're meant to demonstrate how the package
+might be used.  Tasks available so far include
+
+	DISPLAY.C	- C program to display an image.  Demonstrates how
+			  to use the high level format display calls, the
+			  midlevel raw pixel display, and the lowest level
+			  raw raster display methods.
+	TVMARK.C	- C program to display and image and overlay with
+			  point marks, optional interactive marking available.
+			  Demonstrates usage of cursor reads and call for
+	 		  the various marking routines.
+	MOSAIC.C	- C program to mosaic several images on the display.
+			  Demonstrates the use of low-level raster I/O to
+			  do more complex display operations.
+
+	FDISPLAY.F	- Fortran equivalent of the DISPLAY task above.
+	FTVMARK.F	- Fortran equivalent of the TVMARK task above.
+
+Misc Files in This Directory:
+
+	DPIX.FITS	- 512x512 test image of M51
+	COORDS		- sample coordinate file for tvmark task
diff --git a/vendor/x11iraf/cdl/examples/animate.c b/vendor/x11iraf/cdl/examples/animate.c
new file mode 100644
index 00000000..66f487d9
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/animate.c
@@ -0,0 +1,153 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "cdl.h"
+
+/* ANIMATE -- Example task to demonstrate rapid display of rasters such as
+ * would be done in an animation sequence, or in an acquisition system
+ * which needs to display guider images repeatedly (the actual inspiration
+ * for this demo.
+ *
+ * Examples:
+ *	Display a scrolling test pattern:
+ *	    % animate 
+ *
+ * Usage:
+ *	animate [-nx N] [-ny N] [-fbconfig N]
+ *
+ *	Note that your choice of frame buffer is important since if it's
+ * larger than the image size you're spending a lot of overhead in writing
+ * blank pixels around the actual image.  When writing a true subraster of 
+ * the image/frame buffer, the routine first reads back the pixels in the 
+ * affected rows, edits the pixels in the subraster columns and then writes 
+ * back the entire row.  If the subraster width is the same size as the 
+ * frame buffer width it does a straight write which will speed up the dis-
+ * play since you avoid the readback overhead.  It may be worth defining a 
+ * custom frame buffer the size of your image to speed things up.
+ */
+
+#define	DIAGONAL	0			/* test pattern flags 	*/
+#define	VERTICAL	1
+#define	HORIZONTAL	2
+
+#define max(a,b)        (a > b ? a : b) 	/* Utility macros  	*/
+#define min(a,b)        (a < b ? a : b)
+
+	
+CDLPtr	cdl;
+uchar	*pix = NULL;
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	register int i, frame=1;
+	int	nx=256, ny=256, fbconfig=0;
+	int	status=0, fb_w, fb_h, nf, lx, ly;
+	uchar	*line;
+
+	/* Handle command line args. */
+	if (argc > 1) {
+	    for (i=1; i < argc; i++) {
+		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], "-fbconfig") == 0)
+		    fbconfig = atoi (argv[++i]);
+	    }
+	}
+
+	/* Open the package and a connection to the server. */
+	if (!(cdl = cdl_open ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* Make a test pattern. */
+	pix = (uchar *) malloc (nx * ny);
+	makeTestPattern (pix, nx, ny, DIAGONAL);
+
+	/* Now select a frame buffer large enough for the image. The 
+	 * fbconfig number is passed in the WCS packet, but the display
+	 * calls 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.
+	 */
+	if (fbconfig == 0)
+            cdl_selectFB (cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf, 1);
+	else
+	    cdl_lookupFBSize (cdl, fbconfig, &fb_w, &fb_h, &nf);
+
+
+	/* 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.  The Z-transform is
+	 * fixed since we're using a test pattern with known values.
+	 */
+        cdl_setWCS (cdl, "test pattern", "", 1., 0., 0., -1., 
+            (float) (nx / 2) - (fb_w / 2) + 1,	    /* X translation */
+            (float) (fb_h / 2) + (ny / 2),	    /* Y translation */
+	    0.0, 200.0, CDL_LINEAR);		    /* Z transform   */
+
+
+	/* Select and clear the initial frame prior to display. */
+	cdl_setFrame (cdl, frame);
+	cdl_clearFrame (cdl);
+
+	/* Now display the pixels.  We'll compute the image placement
+	 * ourselves and write the image as a raw subraster of the frame
+	 * buffer in the center of the display.
+	 */
+        lx = (fb_w / 2) - (nx / 2);
+        ly = fb_h - ((fb_h / 2) + (ny / 2));
+        status = cdl_writeSubRaster (cdl, lx, ly, nx, ny, pix);
+
+	/* Now animate the image. */
+	line = (uchar *) malloc (nx);
+	while (1) {
+	    /* Shift the image down one line, roll the botton line to the
+	     * top and redisplay the subraster/
+	     */
+	    memcpy (pix, line, nx);
+	    memmove (pix+nx, pix, (ny-1)*nx);
+	    memcpy (line, pix+((ny-1)*nx), nx);
+
+            status = cdl_writeSubRaster (cdl, lx, ly, nx, ny, pix);
+	}
+
+
+	cdl_close (cdl);			/* close the package 	*/
+	free ((unsigned char *) pix);		/* free the raster	*/
+	exit (status);
+}
+
+
+/* Make a test pattern. */
+
+makeTestPattern (raster, nx, ny, pattern)
+uchar   *raster;
+int	nx, ny, pattern;
+{
+	register uchar pix;
+	register int i, j;
+	register float scale;
+
+    	for (i = 0; i < nx; i++) {
+            for (j = 0; j < ny; j++) {
+		switch (pattern) {
+		case DIAGONAL: 				/* Diagonal ramp */
+          	    scale =  200. / (float)(ny) / 2.;
+            	    pix =  (uchar) max(2, (min(200,(scale*i + scale*j))));
+		    break;
+		case VERTICAL: 				/* Vertical ramp */
+            	    scale =  200. / (float)(ny);
+            	    pix =  (uchar) max(2, (min(200,(scale * i))));
+		    break;
+		case HORIZONTAL:			/* Horizontal ramp */
+            	    scale =  200. / (float)(nx);
+            	    pix =  (uchar) max(2, (min(200,(scale * j))));
+		    break;
+                }
+            	raster[i * nx + j] = pix;
+            }
+	}
+}
diff --git a/vendor/x11iraf/cdl/examples/coords b/vendor/x11iraf/cdl/examples/coords
new file mode 100644
index 00000000..7f6fcdf5
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/coords
@@ -0,0 +1,42 @@
+ 49  343
+ 59  226
+ 68  459
+ 87  481
+ 92  319
+ 97  106
+113  143
+126  117
+133  391
+134  109
+134  221
+144  345
+150   83
+179  355
+182   63
+211  328
+218  439
+219  314
+225  129
+241  403
+265  340
+269  355
+288  133
+292  104
+294  178
+320  327
+321   32
+329  409
+338  325
+348  231
+349  188
+364  325
+365  124
+377  368
+381   67
+405  274
+415  187
+442  409
+452  212
+466   62
+472  232
+508  445
diff --git a/vendor/x11iraf/cdl/examples/display.c b/vendor/x11iraf/cdl/examples/display.c
new file mode 100644
index 00000000..67b52c97
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/display.c
@@ -0,0 +1,257 @@
+#include <stdio.h>
+#ifdef ULTRIX
+#include <sys/types.h>
+#endif
+#include <sys/types.h>
+#include <unistd.h>
+#include "cdl.h"
+
+/* 
+ *  DISPLAY -- 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
+ *  and image, it is functional but perhaps not highly efficient for this
+ *  reason.  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] 
+ *	    [-ns N] [-nl N] [-log] file
+ */
+
+#define NONE	-1
+#define	IRAF	 0
+#define	FITS	 1
+#define	RAW	 2
+
+#define ABS(x)	(x > 0 ? x : -x)
+
+#ifdef SOLARIS
+char    *getcwd();
+#else
+char    *getwd();
+#endif
+
+
+main (argc, argv)
+int	argc;
+char	*argv[];
+{
+	CDLPtr	cdl;
+	char 	*fname;
+	int	i, log = 0, status = 0, frame = 1, fbconfig = 0, zscale = 1;
+	int	format = NONE, nx = 0, ny = 0, depth = 8, hskip = 0;
+	int	ns = -1, nl = -1;
+	float 	z1, z2;
+	int	fb_w, fb_h, nf;
+	unsigned char *pix = NULL;
+        char    *path_prefix = (char *) calloc (1025, sizeof(char));
+        char    *path = (char *) calloc (512, sizeof(char));
+        char    *node = (char *) calloc (512, sizeof(char));
+
+	
+	/* Process the command line options. */
+	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], "-log") == 0)
+		    log++;
+                else if (strcmp (argv[i], "-nozscale") == 0)
+		    zscale = 0;
+                else if (strcmp (argv[i], "-ns") == 0)
+		    ns = atoi (argv[++i]);
+                else if (strcmp (argv[i], "-nl") == 0)
+		    nl = atoi (argv[++i]);
+                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;
+	    }
+	}
+
+	/* Open the package and a connection to the server. */
+	if (!(cdl = cdl_open ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	fname = argv[argc-1];
+
+	if (ns >  0)  cdl_setSample (cdl, ns);
+	if (nl >  0)  cdl_setSampleLines (cdl, nl);
+	if (log > 0)  cdl_setZTrans (cdl, CDL_LOG);
+
+	/* METHOD 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.
+	 */
+	if (format == IRAF || (format == NONE && cdl_isIRAF (fname))) {
+	    status = cdl_displayIRAF (cdl, fname, 1, frame,
+		(fbconfig==0 ? FB_AUTO : fbconfig), zscale);
+
+
+	/* METHOD 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 mthod 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.
+	 */
+	} else if (format == FITS || (format == NONE && cdl_isFITS (fname))) {
+	    float *bscale, *bzero;
+	    char  title[80];
+
+	    /* Get the FITS image pixels, exit w/ an error status if something
+	     * went wrong, the procedure will print what that was.
+	     */
+            if (cdl_readFITS (fname, &pix, &nx, &ny, &depth, title)) {
+		cdl_close (cdl);		/* close the package  */
+		exit (1);			/* exit w/ error code */
+	    }
+
+	    /* Now 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.
+	     */
+	    if (fbconfig == 0)
+                cdl_selectFB (cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf, 0);
+
+	    /* Lastly, display the pixels to the requested frame, do any
+	     * zscaling requested using the CDL procedure.  
+	     */
+	    (void) cdl_setTitle (cdl, title);
+            (void) cdl_setName (cdl, fname);
+            if (cdl_displayPix(cdl, pix, nx, ny, depth, frame, fbconfig,zscale))
+                status = 1;
+ 
+	    /* Now just free the pixel pointer to clean up.
+	     */
+	    free ((unsigned char *) pix);
+
+
+	/* METHOD 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.
+	 */
+	} 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);
+	    }
+
+	    /* Open the image file if we can. */
+	    if (fd = fopen (fname, "r")) {
+
+		/* Seek to the offset specified. */
+		lseek (fileno(fd), (off_t) hskip, SEEK_SET);
+
+		/* Allocate the pixel pointer and read the data. */
+		pix = (unsigned char *) malloc (nx * ny * (ABS(depth) / 8));
+		fread (pix, ABS(depth)/8, nx * ny, fd);
+
+		/* If we're zscaling and depth is more than 8-bits, do that. */
+		if (zscale && ABS(depth) > 8) {
+		    cdl_computeZscale (cdl, pix, nx, ny, depth, &z1, &z2);
+		    cdl_zscaleImage (cdl, &pix, nx, ny, depth, z1, z2);
+		}
+
+		/* Select and clear the requested frame prior to display. */
+	        cdl_setFrame (cdl, frame);
+		cdl_clearFrame (cdl);
+
+		/* Now 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.  
+		 */
+                cdl_selectFB (cdl, nx, ny, &fbconfig, &fb_w, &fb_h, &nf, 1);
+
+		/* Compute 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.  
+        	lx = (fb_w / 2) - (nx / 2);
+        	ly = fb_h - ((fb_h / 2) + (ny / 2));
+
+		/* Set 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.
+		 */
+
+                /* First we must compose a node!path prefix for the image */
+                gethostname (node, 512);
+#ifdef SOLARIS
+                (void) getcwd (path, 512);
+#else
+                (void) getwd (path);
+#endif
+                if (*fname == '/')
+                    (void) sprintf (path_prefix, "%s!%s", node, fname);
+                else
+                    (void) sprintf (path_prefix, "%s!%s/%s", node, path, fname);
+
+		cdl_setMapping (cdl, "image", 0., 0., nx, ny, lx, ly, nx, ny,
+		    path_prefix);
+
+		/* 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.
+		 */
+                cdl_setWCS (cdl, fname, "", 1., 0., 0., -1., 
+                    (float) (nx / 2) - (fb_w / 2) + 1,	    /* X trans.     */
+                    (float) (fb_h / 2) + (ny / 2),	    /* Y trans.     */
+		    z1, z2, CDL_LINEAR);		    /* Z transform  */
+
+
+		/* Now display the pixels.  
+		 */
+                if (cdl_writeSubRaster (cdl, lx, ly, nx, ny, pix))
+                    status = 1;
+
+		/* Now just free the pixel pointer to clean up.
+		 */
+		free ((unsigned char *) pix);
+	        fclose (fd);
+
+	    } 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;
+	}
+	
+	cdl_close (cdl);			/* close the package */
+	exit (status);
+}
diff --git a/vendor/x11iraf/cdl/examples/dpix.fits b/vendor/x11iraf/cdl/examples/dpix.fits
new file mode 100644
index 00000000..33c19cb3
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/dpix.fits
diff --git a/vendor/x11iraf/cdl/examples/fdisplay.f b/vendor/x11iraf/cdl/examples/fdisplay.f
new file mode 100644
index 00000000..d14633f6
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/fdisplay.f
@@ -0,0 +1,65 @@
+C ========================================================================
+C                                                                        =
+C  FDISPLAY -- Example fortran program showing the use of the Client     =
+C  Display Library (CDL) Fortran interface for displaying images.  In    =
+C  this simple program all input is prompted for on the command line.    =
+C                                                                        =
+C ========================================================================
+
+
+	program fdisplay
+	character*132  	imname
+        character*132	imtdev
+
+C 	--------------------------
+C 	Initialize the CDL package
+C 	--------------------------
+        call getenv('IMTDEV',imtdev)
+        call cfopen(imtdev, 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 	----------------------------------------------------------
+C	If we've got a FITS format image, go ahead and display it.
+C 	----------------------------------------------------------
+	call cfisfits (imname, isfits)
+	if (isfits .gt. 0) then
+	    call cfdisplayfits (imname, iframe, ifb, 1, ier)
+	    if (ier .gt. 0) then
+	        write (*,*) 'displayFITS: Error return from CDL'
+	        goto 999
+	    endif
+	else 
+C 	    --------------------------------------------------------
+C	    We've got an IRAF format image, go ahead and display it.
+C 	    --------------------------------------------------------
+	    call cfisiraf (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call cfdisplayiraf (imname, 1, iframe, ifb, 1, ier)
+	        if (ier .gt. 0) then
+	            write (*,*) 'displayIRAF: Error return from CDL'
+	            goto 999
+	        endif
+	    else 
+C 	    	----------------------------------
+C	    	Unrecognized image, punt and exit.
+C 	    	----------------------------------
+	        write (*,*) 'Unrecognized image format'
+	    endif
+	endif
+
+C 	------------------
+C 	Clean up and exit.
+C 	------------------
+999	continue
+	call cfclose (ier)
+	end
diff --git a/vendor/x11iraf/cdl/examples/ftvmark.f b/vendor/x11iraf/cdl/examples/ftvmark.f
new file mode 100644
index 00000000..a530895d
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/ftvmark.f
@@ -0,0 +1,301 @@
+C ==========================================================================
+C                                                                          =
+C  FTVMARK --  Example fortran program showing the use of the Client       =
+C  Display Library (CDL) Fortran interface for doing graphics overlay. In  =
+C  this simple program all input is prompted for on the command line.      =
+C                                                                          =
+C ==========================================================================
+
+
+	program ftvmark
+	include 	"../cdlftn.inc"
+	character*64   	imname
+        character*132   imtdev
+
+C       --------------------------
+C       Initialize the CDL package
+C       --------------------------
+        call getenv('IMTDEV',imtdev)
+        call cfopen(imtdev, 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 	----------------------------------------------------------
+C	If we've got a FITS format image, go ahead and display it.
+C 	----------------------------------------------------------
+	call cfisfits (imname, isfits)
+	if (isfits .gt. 0) then
+	    call cfdisplayfits (imname, iframe, ifb, 1, ier)
+	    if (ier .gt. 0) then
+	        write (*,*) 'displayFITS: Error return from CDL'
+	        goto 999
+	    endif
+	else 
+
+C 	    --------------------------------------------------------
+C	    We've got an IRAF format image, go ahead and display it.
+C 	    --------------------------------------------------------
+	    call cfisiraf (imname, isiraf)
+	    if (isiraf .gt. 0) then
+	        call cfdisplayiraf (imname, 1, iframe, ifb, 1, ier)
+	        if (ier .gt. 0) then
+	            write (*,*) 'displayIRAF: Error return from CDL'
+	            goto 999
+	        endif
+	    else 
+C 	        -------------------------------------------------------------
+C	        No valid image given, so map the current display for marking.
+C 	        -------------------------------------------------------------
+	        call cfmapframe (iframe)
+	    endif
+	endif
+
+C 	---------------------------------------------------------------
+C 	Now that we've got an image displayed or mapped, enter a cursor
+C	loop to mark the image.  We do this in a subroutine so all the
+C	parameters needed are together.
+C 	---------------------------------------------------------------
+	call markInteractive ()
+
+C 	-----------------
+C 	Clean up and exit
+C 	-----------------
+999	continue
+	call cfclose (ier)
+	end
+
+
+C =======================================================================
+C                                                                       =
+C   MARKINTERACTIVE -- Subroutine for processing the cursor loop.       =
+C                                                                       =
+C =======================================================================
+
+	subroutine markInteractive ()
+	include 	"../cdlftn.inc"
+	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 	-----------------------------------------------------------------
+C  	Allocate a 1024x1024 array for pixels.  This is the largest frame
+C	buffer we support in this example task
+C 	-----------------------------------------------------------------
+	character	pix(1048576)
+
+C 	--------------------------------
+C	Initialize the parameters to use
+C 	--------------------------------
+	color	= 205
+	size	= 10
+	fill	= 0
+	angle	= 0.0
+	txsize	= 1.0
+	number	= 1
+	radius	= 11
+	xrad 	= 11
+	yrad	= 6
+	nannuli	= 3
+	sep	= 5
+
+C       ----------------------------------------------
+C	Read a cursor keystroke telling us what to do.
+C       ----------------------------------------------
+10 	call cfreadcursor (0, rx, ry, key, ier)
+	if (ier .gt. 0) then
+	    write (*,*) 'cfreadCursor: Error return from CDL'
+	    goto 998
+	endif
+
+C       ----------------------------------------------------------
+C	Round the real cursor position to integer pixel positions.
+C       ----------------------------------------------------------
+	    x = nint (rx + 0.5)
+	    y = nint (ry + 0.5)
+
+C       --------------------------------------------------------------
+C	Check the keystroke and take the appropriate action.  Don't go
+C	looking for an error condition.
+C       --------------------------------------------------------------
+
+C           --------------
+C	    Colon Commands
+C           --------------
+	    if (key .eq. ':') then
+C		----------------------------------------------
+C		Read a three character command and value field
+C		----------------------------------------------
+	        read (*,'(A3, i4)') cmd, ival
+
+C		-------------------------
+C		Process the colon command
+C		-------------------------
+		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
+		else if (cmd(1:3) .eq. 'num') then
+		    number = ival
+		else if (cmd(1:3) .eq. 'nan') then
+		    nannuli = ival
+		else if (cmd(1:3) .eq. 'lab') then
+		    label = ival
+		else if (cmd(1:3) .eq. 'sep') then
+		    sep = ival
+		else if (cmd(1:3) .eq. 'siz') then
+		    size = ival
+		else if (cmd(1:3) .eq. 'txs') then
+		    txsize = ival
+		else if (cmd(1:3) .eq. 'xra') then
+		    xrad = ival
+		else if (cmd(1:3) .eq. 'yra') then
+		    yraf = ival
+		else if (cmd(1:3) .eq. 'pri') then
+		    call cfreadframebuffer (pix, nx, ny, ier)
+		    call cfprintpix ("lpr", pix, nx, ny, 1, ier)
+		else if (cmd(1:3) .eq. 'sta') then
+     		    print 201, angle, color
+     		    print 202, fill, number
+     		    print 203, nannuli, sep
+     		    print 204, size, txsize
+     		    print 205, xrad, yrad
+     		    print 206, label
+201     	    format ('angle   = ',F5.3, t25, 'color  = ',I5)
+202     	    format ('fill    = ',I5, t25, 'number  = ',I5)
+203     	    format ('nannuli = ',I5, t25, 'sep     = ',I5)
+204     	    format ('size    = ',I5, t25, 'txsize  = ',F5.3)
+205     	    format ('xrad    = ',I5, t25, 'yrad    = ',I5)
+206     	    format ('fill    = ',I5)
+	 	endif
+
+C           -------------
+C	    Point Markers
+C           -------------
+	    else if (key .eq. 'p') then
+		call cfmarkpoint (x, y, 1, size, M_PLUS, color, ier)
+	    else if (key .eq. 'x') then
+		call cfmarkpoint (x, y, 1, size, M_CROSS, color, ier)
+	    else if (key .eq. '.') then
+		call cfmarkpoint (x, y, 1, size, M_POINT, color, ier)
+	    else if (key .eq. '*') then
+		call cfmarkpoint (x, y, 1, size, M_STAR, color, ier)
+	    else if (key .eq. '_') then
+		call cfmarkpoint (x, y, 1, size, M_HBLINE, color, ier)
+	    else if (key .eq. '|') then
+		call cfmarkpoint (x, y, 1, size, M_VBLINE, color, ier)
+	    else if (key .eq. 'o') then
+		call cfmarkpoint (x, y, 1, size, ior(M_CIRCLE,fill),
+     &		    color, ier)
+	    else if (key .eq. 's') then
+		call cfmarkpoint (x, y, 1, size, ior(M_BOX,fill), color,
+     &		    ier)
+	    else if (key .eq. 'v') then
+		call cfmarkpoint (x, y, 1, size, ior(M_DIAMOND,fill),
+     &		    color, ier)
+
+C           -------------
+C	    Other Markers
+C           -------------
+
+	    else if (key .eq. 'b') then
+		print '("Hit another key to define the box ....")'
+ 		call cfreadcursor (0, rx, ry, key, ier)
+	    	x2 = nint (rx + 0.5)
+	    	y2 = nint (ry + 0.5)
+		call cfmarkbox (x, y, x2, y2, fill, color, ier)
+	    else if (key .eq. 'c') then
+		print '("Hit another key to set the radius ....")'
+ 		call cfreadcursor (0, rx, ry, key, ier)
+	    	x2 = nint (rx + 0.5)
+	    	y2 = nint (ry + 0.5)
+		radius = nint (sqrt (real((x2-x)**2 + (y2-y)**2)))
+		call cfmarkcircle (x, y, radius, fill, color, ier)
+	    else if (key .eq. 'd') then
+		call cfdeletemark (x, y, ier)
+	    else if (key .eq. 'e') then
+		call cfmarkellipse (x, y, xrad, yrad, angle, fill, color, ier)
+	    else if (key .eq. 'l') then
+		print '("Hit another key to set line endpoint ....")'
+ 		call cfreadcursor (0, rx, ry, key, ier)
+	    	x2 = nint (rx + 0.5)
+	    	y2 = nint (ry + 0.5)
+		call cfmarkline (x, y, x2, y2, color, ier)
+	    else if (key .eq. 't') then
+		print '("Test string:  ", $)'
+		read (*,'(A64)') str
+		call cfmarktext (x, y, str, txsize, angle, color, ier)
+	    else if (key .eq. 'C') then
+		call cfmarkcircannuli (x, y, radius, nannuli, sep, ier)
+	    else if (key .eq. 'D') then
+		call cfclearoverlay (ier)
+	    else if (key .eq. 'E') then
+		call cfmarkellipannuli (x, y, xrad, yrad, angle, nannuli,
+     &		    sep, ier)
+
+C           -------------
+C	    Misc Commands
+C           -------------
+	    else if (key .eq. '?') then
+		call printHelp ()
+	    else if (key .eq. 'q') then
+		goto 998
+	    endif
+
+C	Loop back until we want to quit
+	goto 10
+
+998	continue
+	end
+
+
+C =======================================================================
+C                                                                       =
+C PRINTHELP -- Utility subroutine to print a help summary for the task. =
+C                                                                       =
+C =======================================================================
+
+      subroutine printHelp ()
+      print '("                        Command Summary")'
+      print '(" ")'
+      print '("    :angle <real>   - set ellipse or text  angle")'
+      print '("    :color <int>    - set marker color")'
+      print '("    :fill  <0|1>    - set fill option (zero or one)")'
+      print '("    :number <int>   - set point number")'
+      print '("    :nannuli <int>  - set number of annuli")'
+      print '("    :label <0|1>    - set point label option")'
+      print '("    :sep <int>      - set annuli separation (pixels)")'
+      print '("    :size <int>     - set point marker size")'
+      print '("    :txsize <real>  - set relative text size")'
+      print '("    :xrad <int>     - set ellipse x radius")'
+      print '("    :yrad <int>     - set ellipse y radius")'
+      print '("    :status         - print current settings")'
+      print '("    :snap <file>    - snap frame buffer as EPS to file")'
+      print '("    :print          - print FB to default printer")'
+      print '(" ")'
+      print '("Point Markers:")'
+      print '("    v - diamond mark p - plus mark    x - cross mark")'
+      print '("    . - point mark   * - star mark    _ - horiz dash")'
+      print '("    | - vert dash    o - circle mark  s - square mark")'
+      print '(" ")'
+      print '("Misc. Commands")'
+      print '("    ?  - Print Help     q  - Quit")'
+      print '("    b  - Box            c  - Circle")'
+      print '("    d  - Delete marker  e  - Ellipse marker")'
+      print '("    l  - Line           t  - Text string")'
+      print '("    C  - Circular annuli D  - Delete all markers")'
+      print '("    E  - Elliptical annuli")'
+      print '(" ")'
+      end
diff --git a/vendor/x11iraf/cdl/examples/mosaic.c b/vendor/x11iraf/cdl/examples/mosaic.c
new file mode 100644
index 00000000..e31ee264
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/mosaic.c
@@ -0,0 +1,219 @@
+#include <stdio.h>
+#include <unistd.h>
+#include "cdl.h"
+
+/*  MOSAIC --  Example task to demostrate a possible mosaic display
+ *  application.  Image names may optionally be drawn on each tile of
+ *  the mosaic by specifying the -label and -color flags.  The -pad flag
+ *  can be used to put a space between images, -sample is used to sub-
+ *  sample an image before display.  Assumes all images are the same size.
+ *
+ *  Examples:
+ *      To display four images with a gap in a 1600x1600 frame buffer
+ *	    % mosaic -nx 2 -ny 2 -fbconfig 4 -pad 20 foo[1234].imh
+ *	To display a set of images, subsampling each by 4 pixels
+ *	    % mosaic -nx 2 -ny 2 -pad -10 -sample 4 foo[1234].imh
+ *
+ *  Usage:
+ *	mosaic [-fbconfig N] [-frame N] [-color N] [-label] [-nozscale]
+ *	    [-raw -xdim N -ydim N -bitpix N [-hskip N] ]
+ *	    [-nx N] [-ny N] [-pad N] [-sample N]image1 image2 .....
+ */
+
+#define ABS(x)  (x > 0 ? x : -x)
+
+
+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=0, imy=0, nimages, nim;
+	int	ii, xinit, rowx, rowy, nnx, nny, fb_w, fb_h, nf, mx, my;
+ 	int	raw = 0, bitpix=0, hskip=0;
+	int	nx = 1, ny = 1;
+	float 	z1, z2;
+	unsigned char *pix = NULL;
+	
+
+	/* Process the command line options. */
+	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], "-raw",4) == 0)
+		    raw++;
+                else if (strncmp (argv[i], "-xdim",4) == 0)
+		    imx = atoi (argv[++i]);
+                else if (strncmp (argv[i], "-ydim",4) == 0)
+		    imy = atoi (argv[++i]);
+                else if (strncmp (argv[i], "-bitpix",4) == 0)
+		    bitpix = atoi (argv[++i]);
+                else if (strncmp (argv[i], "-hskip",4) == 0)
+		    hskip = atoi (argv[++i]);
+                else if (strncmp (argv[i], "-sample",4) == 0) {
+		    sample = atoi (argv[++i]);
+		    if (sample % 2) {
+			fprintf (stderr, "ERROR: Sample size must be even\n");
+			exit (-1);
+		    }
+		} else 
+		    break;
+	    }
+	} else {
+   	    printf("Usage:\n\tmosaic ");
+ 	    printf("[-fbconfig N] [-frame N] [-color N] [-label] [-nozscale]");
+ 	    printf("\n\t[-raw -xdim N -ydim N -bitpix N [-hskip N] ]");
+ 	    printf("\n\t[-nx N] [-ny N] [-pad N] [-sample N] image1 ....\n");
+	    exit (1);
+	}
+	nimages = argc - i;
+
+
+	/* Open the package and a connection to the server. */
+	if (!(cdl = cdl_open ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* Clear the frame to begin. */
+        (void) cdl_clearFrame (cdl);
+
+	/* Loop over each of the images in the list. */
+	nim = 0;
+	rowx = rowy = 0;
+	nnx = nny = 0;
+	for (k=0; k < ny && nim < nimages; k++) {
+	    rowy += nny + pad; 
+	    for (rowx = xinit, j=0; j < nx && nim < nimages; j++) {
+
+		/* Get the image name for display. */
+		fname = argv[i++];
+
+		/* Figure out what kind of image it is and get the pixels. */
+            	if (!raw && cdl_isIRAF (fname))
+		    status = cdl_readIRAF (fname, 1, &pix, &imx, &imy, &bitpix,
+			title);
+            	else if (!raw && cdl_isFITS (fname))
+		    status = cdl_readFITS (fname, &pix, &imx, &imy, &bitpix, 
+			title);
+            	else {
+		    if (raw) {
+			/* It's a raw data array, be sure we have everyting
+			 * we need in order to read it.
+			 */
+			if (imx == 0 || imy == 0 || bitpix == 0) {
+                            fprintf(stderr, "ERROR: Use of '-raw' requires ");
+                            fprintf(stderr, "'-xdim', '-ydim' and '-bitpix'\n");
+                            status = 1;
+			} else {
+			    FILE *fd;
+
+		            /* Open the image file if we can. */
+		            if (fd = fopen (fname, "r")) {
+
+                	        /* Seek to the offset specified. */
+                	        lseek (fileno(fd), (off_t) hskip, SEEK_SET);
+
+                	        /* Allocate the pixel pointer and read data. */
+                	        pix = (pix ? pix : (uchar *) malloc (
+				    imx*imy*(ABS(bitpix) / 8)) );
+                	        fread (pix, ABS(bitpix)/8, imx*imy, fd);
+				fclose (fd);
+			    } else
+                                status = 1;
+			}
+		    } else {
+			/* Didn't set the raw flag, and we don't know what
+			 * it is....punt.
+			 */
+                        if (access (fname, 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_; 
+
+		/* Compute subsampled image size. */
+		if (sample > 1)
+		    nnx = imx / sample, nny = imy / sample;
+		else
+		    nnx = imx, nny = imy;
+
+		/* Unless 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.
+		 */
+		if (nim == 0 && fb == FB_AUTO) {
+                    cdl_selectFB (cdl, nx*nnx+(pad*(nx-1)), ny*nny+(pad*(ny-1)),
+		        &fb, &fb_w, &fb_h, &nf, 1);
+		} else {
+		    cdl_setFBConfig (cdl, fb);
+		    cdl_lookupFBSize (cdl, fb, &fb_w, &fb_h, &nf);
+		}
+
+		/* Define a WCS for the frame. */
+                cdl_setWCS (cdl, "image mosaic", "", 1., 0., 0., -1., 0.,
+                    (float) ny*imy+(pad*(ny+1)), 1., 255., 1);
+
+		/* The first time through figure out the placement so the
+	   	 * entire mosaic is centered in the frame.
+		 */
+		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;
+		}
+
+		/* Compute the zscaled imaged pixels. */
+		if (zscale) {
+                    cdl_computeZscale (cdl, pix, imx ,imy, bitpix, &z1, &z2);
+		    printf ("%s: z1=%g  z2=%g\n", fname, z1, z2);
+                    cdl_zscaleImage (cdl, &pix, imx ,imy, bitpix, z1, z2);
+		}
+
+		/* Subsample the image if requested. */
+		if (sample > 1) {
+		    int l, m, n;
+
+		    for (l=0, n=0; l < imy; l+=sample)
+		        for (m=0; m < imx; m+=sample)
+		            pix[n++] = pix[(l*imx)+m];
+		}
+
+		/* Write the image to the frame buffer. */
+            	if (cdl_writeSubRaster (cdl, rowx, rowy, nnx, nny, pix))
+		    goto err_; 
+
+		/* Draw the image name as a label. */
+		if (label) 
+		    cdl_markText (cdl, rowx+10, rowy+10, fname, 1., 0., col);
+
+		nim++;
+	        rowx += nnx + pad; 
+	    }
+	}
+	
+	/* Close the package and clean up. */
+err_:	cdl_close (cdl);			
+	free ( (char *) pix);
+	exit (status);
+}
diff --git a/vendor/x11iraf/cdl/examples/tvmark.c b/vendor/x11iraf/cdl/examples/tvmark.c
new file mode 100644
index 00000000..db4413ce
--- /dev/null
+++ b/vendor/x11iraf/cdl/examples/tvmark.c
@@ -0,0 +1,397 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <math.h>
+#include "cdl.h"
+
+/* 
+ *  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]
+ */
+
+
+static void	tvmInteractive(), tvmPrintHelp();
+
+#define	SZ_NAME		128
+
+
+/* typedef	unsigned char	uchar; */	/* Defined in 'cdl.h'	*/
+
+
+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;
+	
+	/* Process the command line options. */
+	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",2) == 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];
+	    }
+	}
+
+	/* Open the package and a connection to the server.  */
+	if (!(cdl = cdl_open ((char *)getenv("IMTDEV"))) )
+	   exit (-1);
+
+	/* If an image was specified display it first, otherwise assume the
+	 * image has already been loaded in the frame and mark that.
+	 */
+	if (fname) {
+	    if (cdl_isIRAF (fname))
+	        status = cdl_displayIRAF (cdl, fname, 1, frame, fb, zscale);
+	    else if (cdl_isFITS (fname))
+	        status = cdl_displayFITS (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 {
+	
+	    /* If we've requested a special frame buffer, set it now. */
+	    if (fb > 0)
+		cdl_setFBConfig (cdl, fb);
+
+	    /* Map the current display frame for use as an image. */
+	    cdl_mapFrame (cdl, frame);
+	}
+
+	/* If a coordinate file was specified read the file and mark those
+	 * coords with points.
+	 */
+	if (cfname)
+	    (void) cdl_markCoordsFile (cdl, cfname, M_STAR, size, color, label);
+
+	/* Lastly, start up an interactive cursor loop if needed. */
+	if (interactive)
+	    tvmInteractive (cdl, label, fill, color, size);
+	
+	/* Close the package and clean up. */
+err_:	cdl_close (cdl);			
+	exit (status);
+}
+
+
+/*  TVMINTERACTIVE -- Process commands interactively.  */
+
+static void
+tvmInteractive (cdl, label, fill, color, size)
+CDLPtr	cdl;
+int	label, fill, color, size;
+{
+	float	angle = 0.0, rx, ry, txsize = 1.5, off = 0.5;
+	int	nx, ny, i, x, y, x2, y2, font = F_ROMAN, mag = 3;
+	int	number=1, radius=11, xrad=11, yrad=6, nannuli=3, sep=5;
+	int	linewidth = 1, textwidth = 1, linestyle =  0, wcs = 0;
+	char	key, *cp, cmd[SZ_NAME], str[SZ_NAME];
+	unsigned char *pix;
+
+
+	/* Process commands until a 'q' keystrke is hit.
+	 */
+	while (cdl_readCursor (cdl, 0, &rx, &ry, &wcs, &key) != 'q') {
+	    x = (int) (rx + off);		/* convert to int pixels */
+	    y = (int) (ry + off);
+
+	    switch (key) {
+	    case ':':				/* process a colon command */
+		putchar (':');
+		fgets (str, 64, stdin);
+		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, "font") == 0) {
+		    switch (str[i]) {
+		    case 'r':  font = F_ROMAN;   break;
+		    case 'g':  font = F_GREEK;   break;
+		    case 't':  font = F_TIMES;   break;
+		    case 'f':  font = F_FUTURA;  break;
+		    }
+		    cdl_setFont (cdl, font);
+		} 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, "mag") == 0)
+		    mag = 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, "radius") == 0)
+		    radius = atoi (&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, "linewidth") == 0 ||
+		    strcmp (cmd, "width") == 0) {
+		        linewidth = atoi (&str[i]);
+		        cdl_setLineWidth (cdl, linewidth);
+		} else if (strcmp (cmd, "linestyle") == 0 || 
+		    strcmp (cmd, "style") == 0) {
+		        linestyle = atoi (&str[i]);
+		        cdl_setLineStyle (cdl, linestyle);
+		} else if (strcmp (cmd, "textwidth") == 0) {
+		    textwidth = atoi (&str[i]);
+		    cdl_setTextWidth (cdl, textwidth);
+		} else if (strcmp (cmd, "print") == 0) {
+                    cdl_readFrameBuffer (cdl, &pix, &nx, &ny);
+                    cdl_printPix (cdl, NULL, pix, nx, ny, 1);
+		} else if (strcmp (cmd, "snap") == 0) {
+                    cdl_readFrameBuffer (cdl, &pix, &nx, &ny);
+                    cdl_printPixToFile (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\tfont    = %d\n",label, font);
+		    printf ("linewidth  = %-5d\tmag     = %d\n",linewidth, mag);
+		    printf ("textwidth  = %-5d\tstyle	= %d\n",
+			textwidth, linestyle);
+		}
+		break;
+
+	    case '?':
+		tvmPrintHelp ();
+		break;
+
+	    case 'p':				/* plus mark		*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size,
+		    M_PLUS, color);
+		break;
+	    case 'x':				/* cross mark		*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_CROSS, color);
+		break;
+	    case '.':				/* point mark		*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_POINT, color);
+		break;
+	    case '*':				/* star mark		*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_STAR, color);
+		break;
+	    case '_':				/* horiz dash mark	*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_HBLINE, color);
+		break;
+	    case '|':				/* vert dash mark	*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_VBLINE, color);
+		break;
+	    case 'o':				/* circle mark		*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_CIRCLE|fill, color);
+		break;
+	    case 's':				/* square mark		*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_BOX|fill, color);
+		break;
+	    case 'v':				/* diamond mark		*/
+		cdl_markPoint (cdl, x, y, (label ? number++ : 0), size, 
+		    M_DIAMOND|fill, color);
+		break;
+
+	    case 'b':				/* Box			*/
+		printf ("Hit another key to define the box...\n");
+	  	(void) cdl_readCursor (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + off); 		y2 = (int) (ry + off);
+		cdl_markBox (cdl, x, y, x2, y2, fill, color);
+		break;
+	    case 'c':				/* Circle		*/
+		/*
+		printf ("Hit another key to set radius ...\n");
+	  	(void) cdl_readCursor (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + off); 		y2 = (int) (ry + off);
+		radius = (int) sqrt ((double) ((x2-x)*(x2-x) + (y2-y)*(y2-y)));
+		*/
+		cdl_markCircle (cdl, x, y, radius, fill, color);
+		break;
+	    case 'd':				/* Delete marker	*/
+		cdl_deleteMark (cdl, x, y);
+		break;
+	    case 'e':				/* Ellipse		*/
+		cdl_markEllipse (cdl, x, y, xrad, yrad, angle, fill, color);
+		break;
+	    case 'l':				/* Line			*/
+		printf ("Hit another key to set line endpoint...\n");
+	  	(void) cdl_readCursor (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + off); 		y2 = (int) (ry + off);
+		cdl_markLine (cdl, x, y, x2, y2, color);
+		break;
+	    case 't':				/* Text string		*/
+		printf ("Text string: ");
+		fgets (str, 64, stdin);
+		for (cp = (char *)str; *cp != NULL && (char)*cp != '\n'; cp++)
+		    ;
+		*cp = '\0';
+		cdl_markText (cdl, x, y, str, txsize, angle, color);
+		break;
+	    case 'C':				/* Circular annuli	*/
+		cdl_markCircAnnuli (cdl, x, y, radius, nannuli, sep, color);
+		break;
+	    case 'D':				/* Delete all markers	*/
+		cdl_clearOverlay (cdl);
+		break;
+	    case 'E':				/* Elliptical annuli	*/
+		cdl_markEllipAnnuli (cdl, x, y, xrad, yrad, angle, nannuli,
+		    sep, color);
+		break;
+	    case 'P':				/* Polygon		*/
+		break;
+
+
+	    case 'z':
+		/* A more complex example to display a rectangular region
+		 * 'size' pixels wide to an area 'mag' times bigger on each
+	 	 * side.  The first keystroke in the center of the zoomed
+		 * region, the second is the center of the magnified area.
+		 * Corners are connected and boxes drawn around each area.
+		 * An expensive oepration but you can a cute result.
+		 */
+		printf ("Hit another key to position zoomed raster...\n");
+	  	(void) cdl_readCursor (cdl, 0, &rx, &ry, &wcs, &key);
+	    	x2 = (int) (rx + off); 		y2 = (int) (ry + off);
+
+		{   register int i, j, ii, jj;
+		    int	llx = x - size / 2, lly = y - size / 2,
+		        urx = x + size / 2, ury = y + size / 2;
+		    int	zllx = x2 - (mag*size) / 2, zlly = y2 - (mag*size) / 2,
+		        zurx = x2 + (mag*size) / 2, zury = y2 + (mag*size) / 2;
+		    uchar *ras = (uchar *) malloc (size*size);
+		    uchar *zoom = (uchar *) malloc ((mag*size)*(mag*size));
+		    uchar *rp, *zp, *line;
+
+		    /* Read the image pixels and magnify it.  */
+		    cdl_readSubRaster (cdl, llx, lly, size, size, &ras);
+		    rp = ras, zp = zoom;
+		    for (i=0; i < size; i++) {
+			line = ras + i * size;
+			for (ii=0; ii < mag; ii++) {
+			    for (j=0; j < size; j++) {
+			        for (jj=0; jj < mag; jj++)
+			            *zp++ = *rp;
+			        rp++;
+			    }
+			    rp = line;
+			}
+		    }
+
+		    /* Draw a box around the zoom area and connect the corners
+		     * to the zoomed subraster. */
+		    cdl_markBox (cdl, llx, lly, urx, ury, 0, color);
+		    cdl_markLine (cdl, llx, lly, zllx, zlly, color);
+		    cdl_markLine (cdl, llx, ury, zllx, zury, color);
+		    cdl_markLine (cdl, urx, lly, zurx, zlly, color);
+		    cdl_markLine (cdl, urx, ury, zurx, zury, color);
+
+		    /* Now draw the magnified raster and put a box around it.*/
+		    cdl_writeSubRaster (cdl,zllx,zlly,mag*size,mag*size,zoom);
+		    cdl_markBox (cdl, zllx, zlly, zurx, zury, 0, color);
+		}
+
+	    default:
+		break;
+	    }
+	}
+}
+
+
+/*  TVMPRINTHELP -- Print a help summary.  */
+
+static void
+tvmPrintHelp ()
+{
+    printf ("\t\t\tCommand Summary\n");
+    printf ("\n");
+    printf ("    :angle <real>    - set ellipse of text rotation angle\n");
+    printf ("    :color <int>     - set marker color\n");
+    printf ("    :fill  <0|1>     - set fill option (zero or one)\n");
+    printf ("    :font  <font>    - set text font (roman, greek, times)\n");
+    printf ("    :number <int>    - set point number\n");
+    printf ("    :nannuli <int>   - set number of annuli\n");
+    printf ("    :label <0|1>     - set point label option\n");
+    printf ("    :linewidth <int> - set line width\n");
+    printf ("    :linestyle <int> - set line style\n");
+    printf ("    :textwidth <int> - set text width\n");
+    printf ("    :mag <val>       - set magnify value for 'z' keystroke\n");
+    printf ("    :sep <int>       - set annuli separation (pixels)\n");
+    printf ("    :size <int>      - set point marker size\n");
+    printf ("    :txsize <real>   - set relative text size\n");
+    printf ("    :xrad <int>      - set ellipse x radius\n");
+    printf ("    :yrad <int>      - set ellipse y radius\n");
+    printf ("    :status          - print current settings\n");
+    printf ("    :snap <file>     - snap frame buffer as EPS to file\n");
+    printf ("    :print           - print frame buffer to default printer\n");
+    printf ("\n");
+    printf ("Point Markers:\n");
+    printf ("    v  - diamond mark \tp  - plus mark \t\tx  - cross mark\n");
+    printf ("    .  - point mark \t*  - star mark \t\t_  - horiz dash mark\n");
+    printf ("    |  - vert dash mark o  - circle mark \ts  - square mark\n");
+    printf ("\n");
+    printf ("Misc. Commands\n");
+    printf ("    ?  - Print Help \tq  - Quit\n");
+    printf ("    b  - Box\t\tc  - Circle\n");
+    printf ("    d  - Delete marker\te  - Ellipse marker\n");
+    printf ("    l  - Line\t\tt  - Text string\n");
+    printf ("    C  - Circular annuli D  - Delete all markers\n");
+    printf ("    E  - Elliptical annuli\n");
+    printf ("    z  - zoom in on region\n");
+}