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include <error.h>
include <fset.h>
# T_PDSREAD -- Read PDS format data. Further documentation given
# in pds.hlp
define MAX_RANGES 100
procedure t_pdsread()
char infile[SZ_FNAME] # the input file name list
char outfile[SZ_FNAME] # the output file name list
char file_list[SZ_FNAME] # the input file number list
int offset # the output file name offset
char in_fname[SZ_FNAME], out_fname[SZ_FNAME]
int range[MAX_RANGES*2+1], nfiles, file_number, stat, junk
int lenlist
pointer list
bool clgetb()
char clgetc()
int fstati(), btoi(), clgeti(), fntlenb(), fntgfnb(), mtfile()
int mtneedfileno()
int pds_read(), decode_ranges(), get_next_number(), pds_get_image_type()
pointer fntopnb()
include "rpds.com"
begin
# Set up the standard output to flush on a newline.
if (fstati (STDOUT, F_REDIR) == NO)
call fseti (STDOUT, F_FLUSHNL, YES)
# Get the input file name(s).
call clgstr ("pds_file", infile, SZ_FNAME)
if (mtfile (infile) == YES) {
list = NULL
if (mtneedfileno (infile) == YES)
call clgstr ("file_list", file_list, SZ_LINE)
else
call strcpy ("1", file_list, SZ_LINE)
} else {
list = fntopnb (infile, YES)
lenlist = fntlenb (list)
call sprintf (file_list, SZ_LINE, "1-%d")
call pargi (lenlist)
}
# Decode the ranges.
if (decode_ranges (file_list, range, MAX_RANGES, nfiles) == ERR)
call error (1, "Illegal file number list")
# Setup the output options.
long_header = btoi (clgetb ("long_header"))
short_header = btoi (clgetb ("short_header"))
make_image = btoi (clgetb ("make_image"))
tenbit = btoi (clgetb ("tenbit"))
ninetrack = btoi (clgetb ("ninetrack"))
offset = clgeti ("offset")
# Set the output image data type.
if (make_image == YES) {
data_type = pds_get_image_type (clgetc ("datatype"))
call clgstr ("iraf_file", outfile, SZ_FNAME)
} else
outfile[1] = EOS
# Read successive PDS files, convert and write into a numbered
# succession of output IRAF files.
file_number = 0
while (get_next_number (range, file_number) != EOF) {
# Get the input file name.
if (list != NULL)
junk = fntgfnb (list, in_fname, SZ_FNAME)
else {
if (mtneedfileno (infile) == YES)
call mtfname (infile, file_number, in_fname, SZ_FNAME)
else
call strcpy (infile, in_fname, SZ_FNAME)
}
# Get the output file name.
if (nfiles > 1) {
call sprintf (out_fname[1], SZ_FNAME, "%s%03d")
call pargstr (outfile)
call pargi (file_number + offset)
} else
call strcpy (outfile, out_fname, SZ_FNAME)
# Convert PDS file to the output IRAF file. If EOT is reached
# then exit. If an error is detected then print a warning and
# continue with the next file.
iferr (stat = pds_read (in_fname, out_fname))
call erract (EA_FATAL)
if (stat == EOF) # EOT found
break
}
if (list != NULL)
call fntclsb (list)
end
# GET_IMAGE_TYPE -- Convert a character to an IRAF image type.
define NTYPES 7
int procedure pds_get_image_type(c)
char c
int i, type_codes[NTYPES]
int stridx()
string types "usilrds" # supported image data types
data type_codes /TY_USHORT, TY_SHORT, TY_INT, TY_LONG, TY_REAL,
TY_DOUBLE, TY_COMPLEX/
begin
i = stridx (c, types)
if (i == 0)
return (ERR)
else
return (type_codes[stridx (c, types)])
end
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