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include <imhdr.h>
include "../lib/apphot.h"
# AP_ITIME - Procedure to set the image exposure time .
procedure ap_itime (im, ap)
pointer im # pointer to IRAF image
pointer ap # pointer to apphot structure
pointer sp, key
real itime
real imgetr(), apstatr()
begin
call smark (sp)
call salloc (key, SZ_FNAME, TY_CHAR)
call apstats (ap, EXPOSURE, Memc[key], SZ_FNAME)
if (Memc[key] == EOS)
itime = apstatr (ap, ITIME)
else {
iferr {
itime = imgetr (im, Memc[key])
} then {
itime = apstatr (ap, ITIME)
call eprintf ("Warning: Image %s Keyword: %s not found\n")
call pargstr (IM_HDRFILE(im))
call pargstr (Memc[key])
}
}
if (IS_INDEFR(itime) || itime <= 0.0)
call apsetr (ap, ITIME, 1.0)
else
call apsetr (ap, ITIME, itime)
call sfree (sp)
end
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