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include <gset.h>
include <fset.h>
include <imhdr.h>
include "../lib/apphot.h"
# T_FITSKY -- Procedure to fit sky values in a an annular region around
# a list of objects.
procedure t_fitsky ()
pointer image # pointer to the name of the image
pointer output # pointer to output file name
pointer coords # coordinate file
pointer plotfile # pointer to file of graphics metacode
pointer graphics # pointer to graphics display device
pointer display # pointer to display device
int interactive # mode of use
int cache # cache the image pixels in memory
int verify # verify critical parameters
int update # update the critical parameter
int verbose # verbose mode
pointer sp, outfname, cname, ap, im, mgd, gd, id, str
int sid, lid, limlist, lclist, lolist, out, cl, pfd, 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 strlen(), apsky(), imtopenp(), clpopnu(), open(), clgwrd(), ap_memstat()
int 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 the standard output to flush on a 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, "Imcompatable 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"))
verify = btoi (clgetb ("verify"))
update = btoi (clgetb ("update"))
verbose = btoi (clgetb ("verbose"))
# Get the parameters.
call ap_sgpars (ap)
if (verify == YES && interactive == NO) {
call ap_sconfirm (ap, NULL, 1)
if (update == YES)
call ap_pspars (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 plot files.
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 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 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 the output text file, if output is "default", dir$default
# or a directory specification then the extension "sky" is added
# to the image name and a suitable version number is appended to
# the output name. If the output string is null to 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], "sky",
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 sky
if (interactive == NO) {
if (Memc[cname] != EOS)
stat = apsky (ap, im, cl, NULL, NULL, mgd, NULL, out,
sid, NO, cache)
else if (cl != NULL) {
lid = 1
call apbsky (ap, im, cl, NULL, out, sid, lid, gd, mgd, id,
verbose)
stat = NO
} else
stat = NO
} else
stat = apsky (ap, im, cl, NULL, gd, mgd, id, out, sid, YES,
cache)
# Cleanup.
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.
if (cl != NULL && lclist == 1)
call close (cl)
# If only one output file for a list of images close.
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 plot files.
if (id == gd && id != NULL) {
call gclose (id)
} 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 sky fitting structure
call apsfree (ap)
# Close up lists.
call imtclose (imlist)
call clpcls (clist)
call clpcls (olist)
call sfree (sp)
end
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