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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <imhdr.h>
# IMA_NL -- For each line in the output image lines from the input images
# are returned. The input images are repeated as necessary. EOF is returned
# when the last line of the output image has been reached. One dimensional
# images are read only once and the data pointers are assumed to be unchanged
# from previous calls. The image line vectors must be initialized externally
# and then left untouched.
#
# This procedure is typically used when operations upon lines or pixels
# make sense in mixed dimensioned images. For example to add a one dimensional
# image to all lines of a higher dimensional image or to subtract a
# two dimensional image from all bands of three dimensional image.
# The lengths of the common dimensions should generally be checked
# for equality with xt_imleneq.
int procedure ima_nls (im, data, v, nimages)
pointer im[nimages] # IMIO pointers; the first one is the output
pointer data[nimages] # Returned data pointers
long v[IM_MAXDIM, nimages] # Line vectors
int nimages # Number of images
int i
int impnls(), imgnls()
begin
if (impnls (im[1], data[1], v[1,1]) == EOF)
return (EOF)
for (i=2; i <= nimages; i=i+1) {
if (imgnls (im[i], data[i], v[1,i]) == EOF) {
if (IM_NDIM(im[i]) > 1) {
call amovkl (long(1), v[1,i], IM_MAXDIM)
if (imgnls (im[i], data[i], v[1,i]) == EOF)
call error (0, "Error reading image line")
}
}
}
return (OK)
end
int procedure ima_nli (im, data, v, nimages)
pointer im[nimages] # IMIO pointers; the first one is the output
pointer data[nimages] # Returned data pointers
long v[IM_MAXDIM, nimages] # Line vectors
int nimages # Number of images
int i
int impnli(), imgnli()
begin
if (impnli (im[1], data[1], v[1,1]) == EOF)
return (EOF)
for (i=2; i <= nimages; i=i+1) {
if (imgnli (im[i], data[i], v[1,i]) == EOF) {
if (IM_NDIM(im[i]) > 1) {
call amovkl (long(1), v[1,i], IM_MAXDIM)
if (imgnli (im[i], data[i], v[1,i]) == EOF)
call error (0, "Error reading image line")
}
}
}
return (OK)
end
int procedure ima_nll (im, data, v, nimages)
pointer im[nimages] # IMIO pointers; the first one is the output
pointer data[nimages] # Returned data pointers
long v[IM_MAXDIM, nimages] # Line vectors
int nimages # Number of images
int i
int impnll(), imgnll()
begin
if (impnll (im[1], data[1], v[1,1]) == EOF)
return (EOF)
for (i=2; i <= nimages; i=i+1) {
if (imgnll (im[i], data[i], v[1,i]) == EOF) {
if (IM_NDIM(im[i]) > 1) {
call amovkl (long(1), v[1,i], IM_MAXDIM)
if (imgnll (im[i], data[i], v[1,i]) == EOF)
call error (0, "Error reading image line")
}
}
}
return (OK)
end
int procedure ima_nlr (im, data, v, nimages)
pointer im[nimages] # IMIO pointers; the first one is the output
pointer data[nimages] # Returned data pointers
long v[IM_MAXDIM, nimages] # Line vectors
int nimages # Number of images
int i
int impnlr(), imgnlr()
begin
if (impnlr (im[1], data[1], v[1,1]) == EOF)
return (EOF)
for (i=2; i <= nimages; i=i+1) {
if (imgnlr (im[i], data[i], v[1,i]) == EOF) {
if (IM_NDIM(im[i]) > 1) {
call amovkl (long(1), v[1,i], IM_MAXDIM)
if (imgnlr (im[i], data[i], v[1,i]) == EOF)
call error (0, "Error reading image line")
}
}
}
return (OK)
end
int procedure ima_nld (im, data, v, nimages)
pointer im[nimages] # IMIO pointers; the first one is the output
pointer data[nimages] # Returned data pointers
long v[IM_MAXDIM, nimages] # Line vectors
int nimages # Number of images
int i
int impnld(), imgnld()
begin
if (impnld (im[1], data[1], v[1,1]) == EOF)
return (EOF)
for (i=2; i <= nimages; i=i+1) {
if (imgnld (im[i], data[i], v[1,i]) == EOF) {
if (IM_NDIM(im[i]) > 1) {
call amovkl (long(1), v[1,i], IM_MAXDIM)
if (imgnld (im[i], data[i], v[1,i]) == EOF)
call error (0, "Error reading image line")
}
}
}
return (OK)
end
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