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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <error.h>
include <imhdr.h>
# IC_IMSTACK -- Stack images into a single image of higher dimension.
procedure ic_imstack (list, output, mask)
int list #I List of images
char output[ARB] #I Name of output image
char mask[ARB] #I Name of output mask
int i, j, npix
long line_in[IM_MAXDIM], line_out[IM_MAXDIM], line_outbpm[IM_MAXDIM]
pointer sp, input, bpmname, key, in, out, inbpm, outbpm, buf_in, buf_out, ptr
int imtgetim(), imtlen(), errget()
int imgnls(), imgnli(), imgnll(), imgnlr(), imgnld(), imgnlx()
int impnls(), impnli(), impnll(), impnlr(), impnld(), impnlx()
pointer immap(), pm_newmask()
errchk immap
errchk imgnls, imgnli, imgnll, imgnlr, imgnld, imgnlx
errchk impnls, impnli, impnll, impnlr, impnld, impnlx
begin
call smark (sp)
call salloc (input, SZ_FNAME, TY_CHAR)
call salloc (bpmname, SZ_FNAME, TY_CHAR)
call salloc (key, SZ_FNAME, TY_CHAR)
iferr {
# Add each input image to the output image.
out = NULL; outbpm = NULL
i = 0
while (imtgetim (list, Memc[input], SZ_FNAME) != EOF) {
i = i + 1
in = NULL; inbpm = NULL
ptr = immap (Memc[input], READ_ONLY, 0)
in = ptr
# For the first input image map the output image as a copy
# and increment the dimension. Set the output line counter.
if (i == 1) {
ptr = immap (output, NEW_COPY, in)
out = ptr
IM_NDIM(out) = IM_NDIM(out) + 1
IM_LEN(out, IM_NDIM(out)) = imtlen (list)
npix = IM_LEN(out, 1)
call amovkl (long(1), line_out, IM_MAXDIM)
if (mask[1] != EOS) {
ptr = immap (mask, NEW_COPY, in)
outbpm = ptr
IM_NDIM(outbpm) = IM_NDIM(outbpm) + 1
IM_LEN(outbpm, IM_NDIM(outbpm)) = imtlen (list)
call amovkl (long(1), line_outbpm, IM_MAXDIM)
}
}
# Check next input image for consistency with the output image.
if (IM_NDIM(in) != IM_NDIM(out) - 1)
call error (0, "Input images not consistent")
do j = 1, IM_NDIM(in) {
if (IM_LEN(in, j) != IM_LEN(out, j))
call error (0, "Input images not consistent")
}
call sprintf (Memc[key], SZ_FNAME, "stck%04d")
call pargi (i)
call imastr (out, Memc[key], Memc[input])
# Copy the input lines from the image to the next lines of
# the output image. Switch on the output data type to optimize
# IMIO.
call amovkl (long(1), line_in, IM_MAXDIM)
switch (IM_PIXTYPE (out)) {
case TY_SHORT:
while (imgnls (in, buf_in, line_in) != EOF) {
if (impnls (out, buf_out, line_out) == EOF)
call error (0, "Error writing output image")
call amovs (Mems[buf_in], Mems[buf_out], npix)
}
case TY_INT:
while (imgnli (in, buf_in, line_in) != EOF) {
if (impnli (out, buf_out, line_out) == EOF)
call error (0, "Error writing output image")
call amovi (Memi[buf_in], Memi[buf_out], npix)
}
case TY_USHORT, TY_LONG:
while (imgnll (in, buf_in, line_in) != EOF) {
if (impnll (out, buf_out, line_out) == EOF)
call error (0, "Error writing output image")
call amovl (Meml[buf_in], Meml[buf_out], npix)
}
case TY_REAL:
while (imgnlr (in, buf_in, line_in) != EOF) {
if (impnlr (out, buf_out, line_out) == EOF)
call error (0, "Error writing output image")
call amovr (Memr[buf_in], Memr[buf_out], npix)
}
case TY_DOUBLE:
while (imgnld (in, buf_in, line_in) != EOF) {
if (impnld (out, buf_out, line_out) == EOF)
call error (0, "Error writing output image")
call amovd (Memd[buf_in], Memd[buf_out], npix)
}
case TY_COMPLEX:
while (imgnlx (in, buf_in, line_in) != EOF) {
if (impnlx (out, buf_out, line_out) == EOF)
call error (0, "Error writing output image")
call amovx (Memx[buf_in], Memx[buf_out], npix)
}
default:
while (imgnlr (in, buf_in, line_in) != EOF) {
if (impnlr (out, buf_out, line_out) == EOF)
call error (0, "Error writing output image")
call amovr (Memr[buf_in], Memr[buf_out], npix)
}
}
# Copy mask.
if (mask[1] != EOS) {
iferr (call imgstr (in, "bpm", Memc[bpmname], SZ_FNAME)) {
Memc[bpmname] = EOS
ptr = pm_newmask (in, 27)
} else
ptr = immap (Memc[bpmname], READ_ONLY, 0)
inbpm = ptr
if (IM_NDIM(inbpm) != IM_NDIM(outbpm) - 1)
call error (0, "Input images not consistent")
do j = 1, IM_NDIM(inbpm) {
if (IM_LEN(inbpm, j) != IM_LEN(outbpm, j))
call error (0, "Masks not consistent")
}
call amovkl (long(1), line_in, IM_MAXDIM)
while (imgnli (inbpm, buf_in, line_in) != EOF) {
if (impnli (outbpm, buf_out, line_outbpm) == EOF)
call error (0, "Error writing output mask")
call amovi (Memi[buf_in], Memi[buf_out], npix)
}
call sprintf (Memc[key], SZ_FNAME, "bpm%04d")
call pargi (i)
call imastr (out, Memc[key], Memc[bpmname])
call imunmap (inbpm)
}
call imunmap (in)
}
} then {
i = errget (Memc[key], SZ_FNAME)
call erract (EA_WARN)
if (outbpm != NULL) {
call imunmap (outbpm)
iferr (call imdelete (mask))
;
}
if (out != NULL) {
call imunmap (out)
iferr (call imdelete (output))
;
}
if (inbpm != NULL)
call imunmap (inbpm)
if (in != NULL)
call imunmap (in)
call sfree (sp)
call error (i, "Can't make temporary stack images")
}
# Finish up.
if (outbpm != NULL) {
call imunmap (outbpm)
call imastr (out, "bpm", mask)
}
call imunmap (out)
call sfree (sp)
end
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