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include <imhdr.h>
include <mwset.h>
# T_WCSCOPY -- Copy the world coordinate system of a reference image to
# the world coordinate system of an input image.
procedure t_wcscopy()
bool verbose
int ilist, rlist
pointer sp, image, refimage, value, str, imr, mwr, im
real rval
double dval
bool clgetb()
int imtopen(), imtlen(), imtgetim()
#int mw_stati(), rg_samesize()
pointer immap(), mw_openim()
real imgetr()
double imgetd()
errchk mw_openim(), imgstr(), imgetr(), imgetd(), imdelf()
begin
# Get some temporary working space.
call smark (sp)
call salloc (refimage, SZ_FNAME, TY_CHAR)
call salloc (image, SZ_FNAME, TY_CHAR)
call salloc (value, SZ_FNAME, TY_CHAR)
call salloc (str, SZ_LINE, TY_CHAR)
# Get the input image and reference image lists.
call clgstr ("images", Memc[str], SZ_FNAME)
ilist = imtopen (Memc[str])
call clgstr ("refimages", Memc[str], SZ_FNAME)
rlist = imtopen (Memc[str])
verbose = clgetb ("verbose")
# Check the reference image list length.
if (imtlen (rlist) <= 0)
call error (0, "The reference image list is empty.")
if (imtlen(rlist) > 1 && imtlen(rlist) != imtlen(ilist))
call error (0,
"The number of reference and input images is not the same.")
# Initialize the reference image and coordinate list pointers.
imr = NULL
# Loop over the input images.
while (imtgetim (ilist, Memc[image], SZ_FNAME) != EOF) {
# Open the reference image and reference coordinate file and
# compute the logical and world reference coordinates.
if (imtgetim (rlist, Memc[refimage], SZ_FNAME) != EOF) {
# Open the reference image.
if (imr != NULL) {
if (mwr != NULL)
call mw_close (mwr)
call imunmap (imr)
}
imr = immap (Memc[refimage], READ_ONLY, 0)
# Open the reference image wcs.
iferr (mwr = mw_openim (imr))
mwr = NULL
# Check that the wcs dimensions are rational.
# if (mwr != NULL) {
# if (mw_stati(mwr, MW_NPHYSDIM) < IM_NDIM(imr)) {
# call mw_close (mwr)
# mwr = NULL
# }
# }
}
# Print message about progress of task
if (verbose) {
call printf ("Copying wcs from image %s to image %s\n")
call pargstr (Memc[refimage])
call pargstr (Memc[image])
}
# Remove any image section and open the input image.
call imgimage (Memc[image], Memc[image], SZ_FNAME)
iferr (im = immap (Memc[image], READ_WRITE, 0)) {
im = immap (Memc[image], NEW_IMAGE, 0)
IM_NDIM(im) = 0
}
# Test for valid wcs.
if (mwr == NULL) {
if (verbose) {
call printf (
"\tError: cannot read wcs for reference image %s\n")
call pargstr (Memc[refimage])
}
# } else if (IM_NDIM(im) != IM_NDIM(imr)) {
# if (verbose) {
# call printf (
# "\tError: %s and %s have different number of dimensions\n")
# call pargstr (Memc[image])
# call pargstr (Memc[refimage])
# }
} else {
# if (rg_samesize (imr, im) == NO) {
# if (verbose) {
# call printf (
# "\tWarning: images %s and %s have different sizes\n")
# call pargstr (Memc[image])
# call pargstr (Memc[refimage])
# }
# }
#mw = mw_open (NULL, mw_stati (mwr,MW_NPHYSDIM))
#call mw_loadim (mw, imr)
#call mw_saveim (mw, im)
#call mw_close (mw)
call mw_saveim (mwr, im)
# Copy the RADECSYS keyword to the input image header.
ifnoerr {
call imgstr (imr, "RADECSYS", Memc[value], SZ_FNAME)
} then {
call imastr (im, "RADECSYS", Memc[value])
} else {
iferr (call imdelf (im, "RADECSYS"))
;
}
# Copy the EQUINOX or EPOCH keyword to the input image header
# EQUINOX keyword.
ifnoerr {
rval = imgetr (imr, "EQUINOX")
} then {
call imaddr (im, "EQUINOX", rval)
iferr (call imdelf (im, "EPOCH"))
;
} else {
ifnoerr {
rval = imgetr (imr, "EPOCH")
} then {
call imaddr (im, "EQUINOX", rval)
iferr (call imdelf (im, "EPOCH"))
;
} else {
iferr (call imdelf (im, "EQUINOX"))
;
iferr (call imdelf (im, "EPOCH"))
;
}
}
# Copy the MJD-WCSkeyword to the input image header.
ifnoerr {
dval = imgetd (imr, "MJD-WCS")
} then {
call imaddd (im, "MJD-WCS", dval)
} else {
iferr (call imdelf (im, "MJD-WCS"))
;
}
}
# Close the input image.
call imunmap (im)
}
if (imr != NULL) {
if (mwr != NULL)
call mw_close (mwr)
call imunmap (imr)
}
if (ilist != NULL)
call imtclose (ilist)
if (rlist != NULL)
call imtclose (rlist)
call sfree (sp)
end
# RG_SAMESIZE -- Determine whether two images of the same dimension are
# the same size.
int procedure rg_samesize (im1, im2)
pointer im1 #I the first image descriptor
pointer im2 #I the second image descriptor
int i, stat
begin
stat = YES
do i = 1, IM_NDIM(im1) {
if (IM_LEN(im1,i) != IM_LEN(im2,i))
return (NO)
}
return (stat)
end
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