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|
include <ctype.h>
include <fset.h>
include <imhdr.h>
include "linmatch.h"
# RG_LREGIONS -- Decode the input regions description. If the regions string
# is NULL then the regions list is empty. The regions are specified in section
# notation, grid notation, coordinate notation or are read
# from a file.
int procedure rg_lregions (list, im, ls, rp, reread)
int list #I pointer to the regions file list
pointer im #I pointer to the reference image
pointer ls #I pointer to the linscale structure
int rp #I region pointer
int reread #I reread the current file
char fname[SZ_FNAME]
int max_nregions, nregions, fd
pointer sp, regions
int rg_lstati(), rg_lgrid(), rg_lgregions(), rg_lsregions()
int rg_lrsections(), rg_lrcoords(), fntgfnb(), open()
data fname[1] /EOS/
errchk fntgfnb(), seek(), open(), close()
begin
call smark (sp)
call salloc (regions, SZ_LINE, TY_CHAR)
call rg_lstats (ls, REGIONS, Memc[regions], SZ_LINE)
max_nregions = rg_lstati (ls, MAXNREGIONS)
if (rp < 1 || rp > max_nregions || Memc[regions] == EOS) {
nregions = 0
} else if (rg_lgrid (im, ls, rp, max_nregions) > 0) {
nregions = rg_lstati (ls, NREGIONS)
} else if (rg_lgregions (im, ls, rp, max_nregions) > 0) {
nregions = rg_lstati (ls, NREGIONS)
} else if (rg_lsregions (im, ls, rp, max_nregions) > 0) {
nregions = rg_lstati (ls, NREGIONS)
} else if (list != NULL) {
if (reread == NO) {
iferr {
if (fntgfnb (list, fname, SZ_FNAME) != EOF) {
fd = open (fname, READ_ONLY, TEXT_FILE)
nregions= rg_lrsections (fd, im, ls, rp, max_nregions)
if (nregions <= 0) {
call seek (fd, BOF)
nregions= rg_lrcoords (fd, im, ls, rp, max_nregions)
}
call close (fd)
} else
nregions = 0
} then
nregions = 0
} else if (fname[1] != EOS) {
iferr {
fd = open (fname, READ_ONLY, TEXT_FILE)
nregions= rg_lrsections (fd, im, ls, rp, max_nregions)
if (nregions <= 0) {
call seek (fd, BOF)
nregions= rg_lrcoords (fd, im, ls, rp, max_nregions)
}
call close (fd)
} then
nregions = 0
}
} else
nregions = 0
call sfree (sp)
return (nregions)
end
# RG_LGRID - Decode the regions from a grid specification.
int procedure rg_lgrid (im, ls, rp, max_nregions)
pointer im #I pointer to the reference image
pointer ls #I pointer to the linscale structure
int rp #I index of the current region
int max_nregions #I the maximum number of regions
int i, istart, iend, j, jstart, jend, ncols, nlines, nxsample, nysample
int nxcols, nylines, nregions
pointer sp, region, section
int rg_lstati(), nscan(), strcmp()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (region, SZ_LINE, TY_CHAR)
call salloc (section, SZ_LINE, TY_CHAR)
# Allocate the arrays to hold the regions information,
call rg_lrealloc (ls, max_nregions)
# Initialize.
call rg_lstats (ls, REGIONS, Memc[region], SZ_LINE)
ncols = IM_LEN(im,1)
nlines = IM_LEN(im,2)
nregions = min (rp - 1, rg_lstati (ls, NREGIONS))
# Decode the grid specification.
call sscan (Memc[region])
call gargwrd (Memc[section], SZ_LINE)
call gargi (nxsample)
call gargi (nysample)
if ((nscan() != 3) || (strcmp (Memc[section], "grid") != 0)) {
call sfree (sp)
return (nregions)
}
# Decode the regions.
if ((nxsample * nysample) > max_nregions) {
nxsample = nint (sqrt (real (max_nregions) * real (ncols) /
real (nlines)))
nysample = real (max_nregions) / real (nxsample)
}
nxcols = ncols / nxsample
nylines = nlines / nysample
jstart = 1 + (nlines - nysample * nylines) / 2
jend = jstart + (nysample - 1) * nylines
do j = jstart, jend, nylines {
istart = 1 + (ncols - nxsample * nxcols) / 2
iend = istart + (nxsample - 1) * nxcols
do i = istart, iend, nxcols {
Memi[rg_lstatp(ls,RC1)+nregions] = i
Memi[rg_lstatp(ls,RC2)+nregions] = i + nxcols - 1
Memi[rg_lstatp(ls,RL1)+nregions] = j
Memi[rg_lstatp(ls,RL2)+nregions] = j + nylines - 1
Memi[rg_lstatp(ls,RXSTEP)+nregions] = 1
Memi[rg_lstatp(ls,RYSTEP)+nregions] = 1
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
}
}
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0)
call rg_lrealloc (ls, nregions)
else
call rg_lrfree (ls)
call sfree (sp)
return (nregions)
end
# RG_LGREGIONS -- Compute the column and line limits givenan x and y
# coordinate and a default size.
int procedure rg_lgregions (im, ls, rp, max_nregions)
pointer im #I pointer to the image
pointer ls #I pointer to the linscale structure
int rp #I pointer to the current region
int max_nregions #I maximum number of regions
char comma
int ncols, nlines, nregions, onscan()
int x1, x2, y1, y2
pointer sp, region
real x, y, xc, yc
int rg_lstati(), nscan()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (region, SZ_LINE, TY_CHAR)
# Allocate the arrays to hold the regions information.
call rg_lrealloc (ls, max_nregions)
# Get the constants.
ncols = IM_LEN(im,1)
nlines = IM_LEN(im,2)
# Decode the center.
call rg_lstats (ls, REGIONS, Memc[region], SZ_LINE)
nregions = min (rp - 1, rg_lstati (ls, NREGIONS))
onscan = 0
call sscan (Memc[region])
call gargr (x)
call gargr (y)
call gargc (comma)
# Compute the data region.
while ((nscan() == onscan + 3) && (nregions < max_nregions)) {
# Check for the comma.
if (comma != ',')
break
# Compute a more accurate center.
#if (rg_lstati (ls, CENTER) == YES) {
#call rg_lcntr (im, x, y, DEF_CRADIUS, xc, yc)
#} else {
xc = x
yc = y
#}
# Compute the data section.
x1 = xc - rg_lstati (ls, DNX) / 2
x2 = x1 + rg_lstati (ls, DNX) - 1
if (IM_NDIM(im) == 1) {
y1 = 1
y2 = 1
} else {
y1 = yc - rg_lstati (ls, DNY) / 2
y2 = y1 + rg_lstati (ls, DNY) - 1
}
# Make sure that the region is on the image.
if (x1 >= 1 && x2 <= IM_LEN(im,1) && y1 >= 1 &&
y2 <= IM_LEN(im,2)) {
Memi[rg_lstatp(ls,RC1)+nregions] = x1
Memi[rg_lstatp(ls,RC2)+nregions] = x2
Memi[rg_lstatp(ls,RL1)+nregions] = y1
Memi[rg_lstatp(ls,RL2)+nregions] = y2
Memi[rg_lstatp(ls,RXSTEP)+nregions] = 1
Memi[rg_lstatp(ls,RYSTEP)+nregions] = 1
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
}
onscan = nscan()
call gargr (x)
call gargr (y)
call gargc (comma)
}
# Reallocate the correct amount of space.
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0)
call rg_lrealloc (ls, nregions)
else
call rg_lrfree (ls)
call sfree (sp)
return (nregions)
end
# RG_LMKREGIONS -- Procedure to mark the sections on the image display.
# Sections are marked by pointing the image display cursor to the
# lower left and upper rights corners of the desired sections respectively.
int procedure rg_lmkregions (fd, im, ls, rp, max_nregions, regions, maxch)
int fd #I pointer to the output text file
pointer im #I pointer to the image
pointer ls #I pointer to the intensity scaling structure
int rp #I pointer to current region
int max_nregions #I maximum number of regions
char regions[ARB] #O the output regions string
int maxch #I the maximum size of the output string
int nregions, op, wcs, key
pointer sp, cmd
real xll, yll, xur, yur
int rg_lstati(), clgcur(), gstrcpy()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (cmd, SZ_LINE, TY_CHAR)
# Allocate the arrays to hold the regions information,
call rg_lrealloc (ls, max_nregions)
# Initialize.
nregions = min (rp-1, rg_lstati (ls, NREGIONS))
op = 1
regions[1] = EOS
while (nregions < max_nregions) {
call printf ("Mark lower left corner of region %d [q to quit].\n")
call pargi (nregions + 1)
if (clgcur ("icommands", xll, yll, wcs, key, Memc[cmd],
SZ_LINE) == EOF)
break
if (key == 'q')
break
call printf ("Mark upper right corner of region %d [q to quit].\n")
call pargi (nregions + 1)
if (clgcur ("icommands", xur, yur, wcs, key, Memc[cmd],
SZ_LINE) == EOF)
break
if (key == 'q')
break
# Make sure that the region is on the image.
if (xll < 1.0 || xur > IM_LEN(im,1) || yll < 1.0 || yur >
IM_LEN(im,2))
next
Memi[rg_lstatp(ls,RC1)+nregions] = nint(xll)
Memi[rg_lstatp(ls,RC2)+nregions] = nint(xur)
Memi[rg_lstatp(ls,RXSTEP)+nregions] = 1
Memi[rg_lstatp(ls,RL1)+nregions] = nint(yll)
Memi[rg_lstatp(ls,RL2)+nregions] = nint(yur)
Memi[rg_lstatp(ls,RYSTEP)+nregions] = 1
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
# Write the regions string.
call sprintf (Memc[cmd], SZ_LINE, "[%d:%d,%d:%d] ")
call pargi (nint(xll))
call pargi (nint(xur))
call pargi (nint(yll))
call pargi (nint(yur))
op = op + gstrcpy (Memc[cmd], regions[op], maxch - op + 1)
# Write the output record.
if (fd != NULL) {
call fprintf (fd, "[%d:%d,%d:%d]\n")
call pargi (nint(xll))
call pargi (nint(xur))
call pargi (nint(yll))
call pargi (nint(yur))
}
}
call printf ("\n")
# Reallocate the correct amount of space.
call rg_lsets (ls, REGIONS, regions)
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0)
call rg_lrealloc (ls, nregions)
else
call rg_lrfree (ls)
call sfree (sp)
return (nregions)
end
# RG_LMKXY -- Create a list of objects by selecting objects with
# the image display cursor.
int procedure rg_lmkxy (fd, im, ls, rp, max_nregions)
int fd #I the output coordinates file descriptor
pointer im #I pointer to the image
pointer ls #I pointer to the psf matching structure
int rp #I pointer to current region
int max_nregions #I maximum number of regions
int nregions, wcs, key, x1, x2, y1, y2
pointer sp, region, cmd
real xc, yc
int clgcur(), rg_lstati()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (region, SZ_FNAME, TY_CHAR)
call salloc (cmd, SZ_LINE, TY_CHAR)
# Allocate the arrays to hold the regions information,
call rg_lrealloc (ls, max_nregions)
nregions = min (rp-1, rg_lstati (ls, NREGIONS))
while (nregions < max_nregions) {
# Identify the object.
call printf ("Mark object %d [any key=mark,q=quit]:\n")
call pargi (nregions + 1)
if (clgcur ("icommands", xc, yc, wcs, key, Memc[cmd],
SZ_LINE) == EOF)
break
if (key == 'q')
break
# Compute the data section.
x1 = xc - rg_lstati (ls, DNX) / 2
x2 = x1 + rg_lstati (ls, DNX) - 1
y1 = yc - rg_lstati (ls, DNY) / 2
y2 = y1 + rg_lstati (ls, DNY) - 1
# Make sure that the region is on the image.
if (x1 < 1 || x2 > IM_LEN(im,1) || y1 < 1 || y2 >
IM_LEN(im,2))
next
if (fd != NULL) {
call fprintf (fd, "%0.3f %0.3f\n")
call pargr (xc)
call pargr (yc)
}
Memi[rg_lstatp(ls,RC1)+nregions] = x1
Memi[rg_lstatp(ls,RC2)+nregions] = x2
Memi[rg_lstatp(ls,RXSTEP)+nregions] = 1
Memi[rg_lstatp(ls,RL1)+nregions] = y1
Memi[rg_lstatp(ls,RL2)+nregions] = y2
Memi[rg_lstatp(ls,RYSTEP)+nregions] = 1
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
}
# Reallocate the correct amount of space.
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0) {
call rg_lrealloc (ls, nregions)
if (fd != NULL) {
call fstats (fd, F_FILENAME, Memc[region], SZ_FNAME)
call rg_lsets (ls, REGIONS, Memc[region])
} else
call rg_lsets (ls, REGIONS, "")
} else {
call rg_lrfree (ls)
call rg_lsets (ls, REGIONS, "")
}
call sfree (sp)
return (nregions)
end
# RG_LRSECTIONS -- Read the sections from a file.
int procedure rg_lrsections (fd, im, ls, rp, max_nregions)
int fd #I the regions file descriptor
pointer im #I pointer to the image
pointer ls #I pointer to the linscale structure
int rp #I pointer to current region
int max_nregions #I the maximum number of regions
int stat, nregions, ncols, nlines, x1, y1, x2, y2, xstep, ystep
pointer sp, section, line
int rg_lstati(), getline(), rg_lgsections()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
call salloc (section, SZ_LINE, TY_CHAR)
# Allocate the arrays to hold the regions information,
call rg_lrealloc (ls, max_nregions)
# Get the constants.
ncols = IM_LEN(im,1)
nlines = IM_LEN(im,2)
# Decode the regions string.
nregions = min (rp - 1, rg_lstati (ls, NREGIONS))
while (getline (fd, Memc[line]) != EOF && nregions < max_nregions) {
call sscan (Memc[line])
call gargwrd (Memc[section], SZ_LINE)
while (Memc[section] != EOS && nregions < max_nregions) {
stat = rg_lgsections (Memc[section], x1, x2, xstep, y1, y2,
ystep, ncols, nlines)
# Check for even dimensioned regions.
if (stat == OK) {
if (mod (x2 - x1 + 1, 2) == 2) {
x2 = x2 + 1
if (x2 > ncols)
x2 = x2 - 2
if (x2 < 1)
stat = ERR
}
if (mod (y2 - y1 + 1, 2) == 2) {
y2 = y2 + 1
if (y2 > nlines)
y2 = y2 - 2
if (y2 < 1)
stat = ERR
}
} else
stat = ERR
# Add the new region to the list.
if (stat == OK) {
Memi[rg_lstatp(ls,RC1)+nregions] = x1
Memi[rg_lstatp(ls,RC2)+nregions] = x2
Memi[rg_lstatp(ls,RL1)+nregions] = y1
Memi[rg_lstatp(ls,RL2)+nregions] = y2
Memi[rg_lstatp(ls,RXSTEP)+nregions] = xstep
Memi[rg_lstatp(ls,RYSTEP)+nregions] = ystep
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
}
call gargwrd (Memc[section], SZ_LINE)
}
}
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0)
call rg_lrealloc (ls, nregions)
else
call rg_lrfree (ls)
call sfree (sp)
return (nregions)
end
# RG_LRCOORDS -- Read the coordinates from a file.
int procedure rg_lrcoords (fd, im, ls, rp, max_nregions)
int fd #I the regions file descriptor
pointer im #I pointer to the image
pointer ls #I pointer to the linscale structure
int rp #I pointer to current region
int max_nregions #I the maximum number of regions
int ncols, nlines, nregions, x1, x2, y1, y2
pointer sp, line
real x, y, xc, yc
int rg_lstati(), getline(), nscan()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
# Allocate the arrays to hold the regions information,
call rg_lrealloc (ls, max_nregions)
# Get the constants.
ncols = IM_LEN(im,1)
nlines = IM_LEN(im,2)
# Decode the regions string.
nregions = min (rp - 1, rg_lstati (ls, NREGIONS))
while (getline (fd, Memc[line]) != EOF && nregions < max_nregions) {
call sscan (Memc[line])
call gargr (x)
call gargr (y)
if (nscan() != 2)
next
# Compute a more accurate center.
#if (rg_lstati (ls, CENTER) == YES) {
#call rg_lcntr (im, x, y, DEF_CRADIUS, xc, yc)
#} else {
xc = x
yc = y
#}
# Compute the data section.
x1 = xc - rg_lstati (ls, DNX) / 2
x2 = x1 + rg_lstati (ls, DNX) - 1
if (IM_NDIM(im) == 1) {
y1 = 1
y2 = 1
} else {
y1 = yc - rg_lstati (ls, DNY) / 2
y2 = y1 + rg_lstati (ls, DNY) - 1
}
# Make sure that the region is on the image.
if (x1 >= 1 && x2 <= IM_LEN(im,1) && y1 >= 1 && y2 <=
IM_LEN(im,2)) {
Memi[rg_lstatp(ls,RC1)+nregions] = x1
Memi[rg_lstatp(ls,RC2)+nregions] = x2
Memi[rg_lstatp(ls,RL1)+nregions] = y1
Memi[rg_lstatp(ls,RL2)+nregions] = y2
Memi[rg_lstatp(ls,RXSTEP)+nregions] = 1
Memi[rg_lstatp(ls,RYSTEP)+nregions] = 1
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
}
}
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0)
call rg_lrealloc (ls, nregions)
else
call rg_lrfree (ls)
call sfree (sp)
return (nregions)
end
# RG_LRPHOT -- Read the photometry from a file.
int procedure rg_lrphot (fd, ls, rp, max_nregions, refimage)
int fd #I the regions file descriptor
pointer ls #I pointer to the linscale structure
int rp #I pointer to current region
int max_nregions #I the maximum number of regions
int refimage #I is the photometry for the reference image
int nregions, maxnr
pointer sp, line
real sky, skyerr, mag, magerr
int rg_lstati(), getline(), nscan()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (line, SZ_LINE, TY_CHAR)
# Allocate the space to hold the arrays.
if (refimage == YES) {
call rg_lrealloc (ls, max_nregions)
nregions = min (rp - 1, rg_lstati (ls, NREGIONS))
maxnr = max_nregions
} else {
nregions = 0
maxnr = rg_lstati(ls, NREGIONS)
}
while (getline (fd, Memc[line]) != EOF && nregions < maxnr) {
call sscan (Memc[line])
call gargr (sky)
call gargr (skyerr)
call gargr (mag)
call gargr (magerr)
if (nscan() != 4)
next
Memi[rg_lstatp(ls,RC1)+nregions] = INDEFI
Memi[rg_lstatp(ls,RC2)+nregions] = INDEFI
Memi[rg_lstatp(ls,RL1)+nregions] = INDEFI
Memi[rg_lstatp(ls,RL2)+nregions] = INDEFI
Memi[rg_lstatp(ls,RXSTEP)+nregions] = INDEFI
Memi[rg_lstatp(ls,RYSTEP)+nregions] = INDEFI
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
if (refimage == YES) {
Memr[rg_lstatp(ls,RSKY)+nregions] = sky
Memr[rg_lstatp(ls,RSKYERR)+nregions] = skyerr
Memr[rg_lstatp(ls,RMAG)+nregions] = mag
Memr[rg_lstatp(ls,RMAGERR)+nregions] = magerr
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
}
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
if (refimage == NO) {
Memr[rg_lstatp(ls,ISKY)+nregions] = sky
Memr[rg_lstatp(ls,ISKYERR)+nregions] = skyerr
Memr[rg_lstatp(ls,IMAG)+nregions] = mag
Memr[rg_lstatp(ls,IMAGERR)+nregions] = magerr
}
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
}
if (refimage == YES) {
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0)
call rg_lrealloc (ls, nregions)
else
call rg_lrfree (ls)
} else if (nregions < rg_lstati (ls,NREGIONS)) {
call rg_lseti (ls, NREGIONS, nregions)
}
call sfree (sp)
return (nregions)
end
# RG_LSREGIONS -- Procedure to compute the column and line limits given
# an image section. If the section is the null string then the region list
# is empty.
int procedure rg_lsregions (im, ls, rp, max_nregions)
pointer im #I pointer to the image
pointer ls #I pointer to the linscale structure
int rp #I pointer to the current region
int max_nregions #I maximum number of regions
int ncols, nlines, nregions
int x1, x2, y1, y2, xstep, ystep
pointer sp, section, region
int rg_lstati(), rg_lgsections()
pointer rg_lstatp()
begin
# Allocate working space.
call smark (sp)
call salloc (region, SZ_LINE, TY_CHAR)
call salloc (section, SZ_LINE, TY_CHAR)
call rg_lstats (ls, REGIONS, Memc[region], SZ_LINE)
# Allocate the arrays to hold the regions information.
call rg_lrealloc (ls, max_nregions)
# Get the constants.
ncols = IM_LEN(im,1)
nlines = IM_LEN(im,2)
if (Memc[region] != EOS) {
call sscan (Memc[region])
call gargwrd (Memc[section], SZ_LINE)
nregions = min (rp - 1, rg_lstati (ls, NREGIONS))
while (Memc[section] != EOS && nregions < max_nregions) {
# Check for even dimensioned regions.
if (rg_lgsections (Memc[section], x1, x2, xstep, y1, y2, ystep,
ncols, nlines) == OK) {
Memi[rg_lstatp(ls,RC1)+nregions] = x1
Memi[rg_lstatp(ls,RC2)+nregions] = x2
Memi[rg_lstatp(ls,RL1)+nregions] = y1
Memi[rg_lstatp(ls,RL2)+nregions] = y2
Memi[rg_lstatp(ls,RXSTEP)+nregions] = xstep
Memi[rg_lstatp(ls,RYSTEP)+nregions] = ystep
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = nregions + 1
}
call gargwrd (Memc[section], SZ_LINE)
}
} else {
Memi[rg_lstatp(ls,RC1)+nregions] = 1
Memi[rg_lstatp(ls,RC2)+nregions] = ncols
Memi[rg_lstatp(ls,RL1)+nregions] = 1
Memi[rg_lstatp(ls,RL2)+nregions] = nlines
Memi[rg_lstatp(ls,RXSTEP)+nregions] = 1
Memi[rg_lstatp(ls,RYSTEP)+nregions] = 1
Memr[rg_lstatp(ls,RMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,RSKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,RMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RNPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,IMEAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMEDIAN)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMODE)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISIGMA)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKY)+nregions] = INDEFR
Memr[rg_lstatp(ls,ISKYERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAG)+nregions] = INDEFR
Memr[rg_lstatp(ls,IMAGERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,INPTS)+nregions] = INDEFI
Memr[rg_lstatp(ls,RBSCALE)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBSCALEERR)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZERO)+nregions] = INDEFR
Memr[rg_lstatp(ls,RBZEROERR)+nregions] = INDEFR
Memi[rg_lstatp(ls,RDELETE)+nregions] = LS_NO
Memr[rg_lstatp(ls,RCHI)+nregions] = INDEFR
nregions = 1
}
# Reallocate the correct amount of space.
call rg_lseti (ls, NREGIONS, nregions)
if (nregions > 0)
call rg_lrealloc (ls, nregions)
else
call rg_lrfree (ls)
call sfree (sp)
return (nregions)
end
# RG_LGSECTIONS -- Decode an image section into column and line limits
# and a step size. Sections which describe the whole image are decoded into
# a block ncols * nlines long.
int procedure rg_lgsections (section, x1, x2, xstep, y1, y2, ystep, ncols,
nlines)
char section[ARB] #I the input section string
int x1, x2 #O the output column section limits
int xstep #O the output column step size
int y1, y2 #O the output line section limits
int ystep #O the output line step size
int ncols, nlines #I the maximum number of lines and columns
int ip
int rg_lgdim()
begin
ip = 1
if (rg_lgdim (section, ip, x1, x2, xstep, ncols) == ERR)
return (ERR)
if (rg_lgdim (section, ip, y1, y2, ystep, nlines) == ERR)
return (ERR)
return (OK)
end
# RG_LGDIM -- Decode a single subscript expression to produce the
# range of values for that subscript (X1:X2), and the sampling step size, STEP.
# Note that X1 may be less than, greater than, or equal to X2, and STEP may
# be a positive or negative nonzero integer. Various shorthand notations are
# permitted, as is embedded whitespace.
int procedure rg_lgdim (section, ip, x1, x2, step, limit)
char section[ARB] #I the input image section
int ip #I/O pointer to the position in section string
int x1 #O first limit of dimension
int x2 #O second limit of dimension
int step #O step size of dimension
int limit #I maximum size of dimension
int temp
int ctoi()
begin
x1 = 1
x2 = limit
step = 1
while (IS_WHITE(section[ip]))
ip = ip + 1
if (section[ip] =='[')
ip = ip + 1
while (IS_WHITE(section[ip]))
ip = ip + 1
# Get X1, X2.
if (ctoi (section, ip, temp) > 0) { # [x1
x1 = max (1, min (temp, limit))
if (section[ip] == ':') {
ip = ip + 1
if (ctoi (section, ip, temp) == 0) # [x1:x2
return (ERR)
x2 = max (1, min (temp, limit))
} else
x2 = x1
} else if (section[ip] == '-') {
x1 = limit
x2 = 1
ip = ip + 1
if (section[ip] == '*')
ip = ip + 1
} else if (section[ip] == '*') # [*
ip = ip + 1
while (IS_WHITE(section[ip]))
ip = ip + 1
# Get sample step size, if give.
if (section[ip] == ':') { # ..:step
ip = ip + 1
if (ctoi (section, ip, step) == 0)
return (ERR)
else if (step == 0)
return (ERR)
}
# Allow notation such as "-*:5", (or even "-:5") where the step
# is obviously supposed to be negative.
if (x1 > x2 && step > 0)
step = -step
while (IS_WHITE(section[ip]))
ip = ip + 1
if (section[ip] == ',') {
ip = ip + 1
return (OK)
} else if (section[ip] == ']')
return (OK)
else
return (ERR)
end
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