Initial commit

1 files changed, 306 insertions, 0 deletions

diff --git a/noao/digiphot/apphot/center/t_center.x b/noao/digiphot/apphot/center/t_center.x
new file mode 100644
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+++ b/noao/digiphot/apphot/center/t_center.x
@@ -0,0 +1,306 @@
+include <fset.h>
+include <gset.h>
+include <imhdr.h>
+include "../lib/apphot.h"
+include "../lib/noise.h"
+
+# T_CENTER -- Procedure to compute accurate centers for a list of objects
+# given a list of starting centers, a set of starting parameters and a list
+# of images.
+
+procedure t_center ()
+
+pointer	image	               	# pointer to name of the image
+pointer	output	 		# pointer to output file name
+pointer	coords			# pointer to coordinate file
+pointer plotfile		# name of plot metacode file
+pointer	graphics		# pointer to graphics device
+pointer display			# pointer to display device
+int	interactive		# interactive mode
+int	cache			# cache image buffer in memory
+int	verify			# verify parameters
+int	update			# update parameters
+int	verbose			# verbose mode
+
+pointer	sp, str, cname, outfname, ap, im, id, gd, mgd
+int	limlist, lclist, lolist, sid, lid, cl, pfd, out, root, stat, memstat
+int	imlist, clist, olist, wcs, req_size, old_size, buf_size
+
+pointer	immap(), gopen()
+int	imtlen(), imtgetim(), clplen(), clgfil(), btoi(), fnldir(), strncmp()
+int	open(), strlen(), apcenter(), imtopenp(), clpopnu(), clgwrd()
+int	ap_memstat(), sizeof()
+bool	clgetb(), streq()
+errchk	gopen
+
+begin
+	# Allocate working space.
+	call smark (sp)
+	call salloc (image, SZ_FNAME, TY_CHAR)
+	call salloc (output, SZ_FNAME, TY_CHAR)
+	call salloc (coords, SZ_FNAME, TY_CHAR)
+	call salloc (plotfile, SZ_FNAME, TY_CHAR)
+	call salloc (graphics, SZ_FNAME, TY_CHAR)
+	call salloc (display, SZ_FNAME, TY_CHAR)
+	call salloc (outfname, SZ_FNAME, TY_CHAR)
+	call salloc (cname, SZ_FNAME, TY_CHAR)
+	call salloc (str, SZ_LINE, TY_CHAR)
+
+	# Set standard output to flush on newline.
+	call fseti (STDOUT, F_FLUSHNL, YES)
+
+	# Get input and output file names.
+	imlist = imtopenp ("image")
+	limlist = imtlen (imlist)
+	clist = clpopnu ("coords") 
+	lclist = clplen (clist)
+	olist = clpopnu ("output")
+	lolist = clplen (olist)
+
+	# Check that image and coordinate list lengths match.
+	if (limlist < 1 || (lclist > 1 && lclist != limlist)) {
+	    call imtclose (imlist)
+	    call clpcls (clist)
+	    call clpcls (olist)
+	    call error (0, "Imcompatible image and coordinate list lengths")
+	}
+
+	# Check that image and output list lengths match.
+	if (lolist > 1 && lolist != limlist) {
+	    call imtclose (imlist)
+	    call clpcls (clist)
+	    call clpcls (olist)
+	    call error (0, "Imcompatible image and output list lengths")
+	}
+
+	call clgstr ("icommands.p_filename", Memc[cname], SZ_FNAME)
+	if (Memc[cname] != EOS)
+	    interactive = NO
+	#else if (lclist == 0)
+	    #interactive = YES
+	else
+	    interactive = btoi (clgetb ("interactive"))
+	cache = btoi (clgetb ("cache"))
+	verbose = btoi (clgetb ("verbose"))
+	verify = btoi (clgetb ("verify"))
+	update = btoi (clgetb ("update"))
+
+	# Get the centering parameters.
+	call ap_gcpars (ap)
+
+	# confirm the centering algorithm parameters.
+	if (verify == YES && interactive == NO) {
+	    call ap_cconfirm (ap, NULL, 1)
+	    if (update == YES)
+		call ap_pcpars (ap)
+	}
+
+	# Get the wcs information.
+        wcs = clgwrd ("wcsin", Memc[str], SZ_LINE, WCSINSTR)
+        if (wcs <= 0) {
+	    call eprintf (
+	        "Warning: Setting the input coordinate system to logical\n")
+            wcs = WCS_LOGICAL
+	}
+        call apseti (ap, WCSIN, wcs)
+        wcs = clgwrd ("wcsout", Memc[str], SZ_LINE, WCSOUTSTR)
+        if (wcs <= 0) {
+	    call eprintf (
+	        "Warning: Setting the output coordinate system to logical\n")
+            wcs = WCS_LOGICAL
+	}
+        call apseti (ap, WCSOUT, wcs)
+	
+	# Get the graphics and display devices.
+	call clgstr ("graphics", Memc[graphics], SZ_FNAME)
+	call clgstr ("display", Memc[display], SZ_FNAME)
+
+	# Open the graphics and image deisplay devices.
+	if (interactive == YES) {
+	    if (Memc[graphics] == EOS)
+		gd = NULL
+	    else {
+		iferr {
+		    gd =  gopen (Memc[graphics], APPEND+AW_DEFER, STDGRAPH)
+		} then {
+		    call eprintf (
+			"Warning: Error opening the graphics device.\n")
+		    gd = NULL
+		}
+	    }
+	    if (Memc[display] == EOS)
+		id = NULL
+	    else if (streq (Memc[graphics], Memc[display]))
+		id = gd
+	    else {
+		iferr {
+		    id = gopen (Memc[display], APPEND, STDIMAGE)
+		} then {
+		    call eprintf (
+		"Warning: Graphics overlay not available for display device.\n")
+		    id = NULL
+		}
+	    }
+	} else {
+	    gd = NULL
+	    id = NULL
+	}
+
+	# Open the plot metacode file.
+	call clgstr ("plotfile", Memc[plotfile], SZ_FNAME)
+	if (Memc[plotfile] == EOS)
+	    pfd = NULL
+	else
+	    pfd = open (Memc[plotfile], APPEND, BINARY_FILE)
+	if (pfd != NULL)
+	    mgd = gopen (Memc[graphics], NEW_FILE, pfd)
+	else
+	    mgd = NULL
+
+	# Begin looping over the image list.
+	sid = 1
+	while (imtgetim (imlist, Memc[image], SZ_FNAME) != EOF) {
+
+	    # Open image.
+	    im = immap (Memc[image], READ_ONLY, 0)
+	    call apimkeys (ap, im, Memc[image])
+
+	    # Set the image display viewport. 
+	    if ((id != NULL) && (id != gd))
+		call ap_gswv (id, Memc[image], im, 4)
+
+	    # Cache the input image pixels.
+	    req_size = MEMFUDGE * IM_LEN(im,1) * IM_LEN(im,2) *
+	        sizeof (IM_PIXTYPE(im))
+	    memstat = ap_memstat (cache, req_size, old_size)
+	    if (memstat == YES)
+		call ap_pcache (im, INDEFI, buf_size)
+
+	    # Open the coordinate file; where coords is assumed to be a simple
+	    # text file in which the x and y positions are in columns 1 and 2
+	    # respectively and all remaining fields are ignored.
+
+	    if (lclist <= 0) {
+		cl = NULL
+		call strcpy ("", Memc[outfname], SZ_FNAME)
+	    } else {
+		stat = clgfil (clist, Memc[coords], SZ_FNAME)
+		root = fnldir (Memc[coords], Memc[outfname], SZ_FNAME)
+		if (strncmp ("default", Memc[coords+root], 7) == 0 || root ==
+		    strlen (Memc[coords])) {
+		    call ap_inname (Memc[image], Memc[outfname], "coo",
+		        Memc[outfname], SZ_FNAME)
+		    lclist = limlist
+	            cl = open (Memc[outfname], READ_ONLY, TEXT_FILE)
+		} else if (stat != EOF) {
+		    call strcpy (Memc[coords], Memc[outfname], SZ_FNAME)
+	            cl = open (Memc[outfname], READ_ONLY, TEXT_FILE)
+		} else { 
+		    call apstats (ap, CLNAME, Memc[outfname], SZ_FNAME)
+		    call seek (cl, BOF)
+		}
+	    }
+	    call apsets (ap, CLNAME, Memc[outfname])
+	    call apfroot (Memc[outfname], Memc[str], SZ_LINE)
+	    call apsets (ap, CLROOT, Memc[str])
+
+	    # Open output text file; if output is "default", dir$default  or
+	    # a directory specification then the extension "ctr" is added to
+	    # the root image name and a suitable version number is appended to
+	    # the output name. If the output string is null then no output
+	    # file is created.
+
+	    if (lolist == 0) {
+		out = NULL
+		call strcpy ("", Memc[outfname], SZ_FNAME)
+	    } else {
+	        stat = clgfil (olist, Memc[output], SZ_FNAME)
+		root = fnldir (Memc[output], Memc[outfname], SZ_FNAME)
+		if (strncmp ("default", Memc[output+root], 7) == 0 || root == 
+		    strlen (Memc[output])) {
+	            call apoutname (Memc[image], Memc[outfname], "ctr",
+		        Memc[outfname], SZ_FNAME)
+	            out = open (Memc[outfname], NEW_FILE, TEXT_FILE)
+		    lolist = limlist
+		} else if (stat != EOF) {
+		    call strcpy (Memc[output], Memc[outfname], SZ_FNAME)
+	            out = open (Memc[outfname], NEW_FILE, TEXT_FILE)
+		} else
+		    call apstats (ap, OUTNAME, Memc[outfname], SZ_FNAME)
+	    }
+	    call apsets (ap, OUTNAME, Memc[outfname])
+
+	    # Fit the centers.
+	    if (interactive == NO) {
+	        if (Memc[cname] != EOS)
+		    stat = apcenter (ap, im, cl, NULL, mgd, NULL, out, sid,
+		        NO, cache)
+	        else if (cl != NULL) {
+		    lid = 1
+	            call apbcenter (ap, im, cl, out, sid, lid, mgd, id,
+		        verbose)
+		    stat = NO
+		} else
+		    stat = NO
+	    } else
+	        stat = apcenter (ap, im, cl, gd, mgd, id, out, sid, YES, cache)
+
+	    # Close up image, coordinates, and output file.
+	    call imunmap (im)
+	    if (cl != NULL) {
+		if (lclist > 1)
+	            call close (cl)
+	    }
+	    if (out != NULL && lolist != 1) {
+		call close (out)
+		if (sid <= 1) {
+		    call apstats (ap, OUTNAME, Memc[outfname], SZ_FNAME)
+		    call delete (Memc[outfname])
+		}
+		sid = 1
+	    }
+
+	    # Uncache memory.
+	    call fixmem (old_size)
+
+	    if (stat == YES)
+		break
+
+	}
+
+	# If only one coordinate file for a list of images close it.
+	if (cl != NULL && lclist == 1)
+	    call close (cl)
+
+	# If only one output file defined for a list of images close it.
+	if (out != NULL && lolist == 1) {
+	    call close (out)
+	    if (sid <= 1) {
+		call apstats (ap, OUTNAME, Memc[outfname], SZ_FNAME)
+		call delete (Memc[outfname])
+	    }
+	}
+
+	# Close up graphics and image display streams and the plot files.
+	if (id == gd && id != NULL)
+	    call gclose (gd)
+	else {
+	    if (gd != NULL)
+	        call gclose (gd)
+	    if (id != NULL)
+		call gclose (id)
+	}
+	if (mgd != NULL)
+	    call gclose (mgd)
+	if (pfd != NULL)
+	    call close (pfd)
+
+	# Free centering structure.
+	call apcfree (ap)
+
+	# Close up the file lists.
+	call imtclose (imlist)
+	call clpcls (clist)
+	call clpcls (olist)
+	call sfree (sp)
+end