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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <error.h>
include <fset.h>
include "rfits.h"
define MAX_RANGES 100 # the maxium number of ranges
define NTYPES 7 # the number of image data types
# RFITS -- Read FITS format data. Further documentation given in rfits.hlp
procedure t_rfits()
char infile[SZ_FNAME] # fits file
char file_list[SZ_LINE] # list of tape files
char outfile[SZ_FNAME] # IRAF file
char in_fname[SZ_FNAME] # input file name
char out_fname[SZ_FNAME] # output file name
int len_inlist, len_outlist
int range[MAX_RANGES*3+1], file_number, offset, stat
pointer inlist, outlist
bool clgetb()
char clgetc()
int rft_get_image_type(), clgeti(), mtfile(), strlen(), btoi(), fntlenb()
int rft_read_fitz(), decode_ranges(), get_next_number(), fntgfnb(), fstati()
int mtneedfileno(), fntrfnb()
pointer fntopnb()
real clgetr(), rft_fe()
include "rfits.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 RFITS parameters.
call clgstr ("fits_file", infile, SZ_FNAME)
long_header = btoi (clgetb ("long_header"))
short_header = btoi (clgetb ("short_header"))
len_record = FITS_RECORD
old_name = btoi (clgetb ("oldirafname"))
make_image = btoi (clgetb ("make_image"))
# Open the input file list.
if (mtfile (infile) == YES) {
inlist = NULL
if (mtneedfileno (infile) == YES)
call clgstr ("file_list", file_list, SZ_LINE)
else
call strcpy ("1", file_list, SZ_LINE)
} else {
inlist = fntopnb (infile, NO)
len_inlist = fntlenb (inlist)
if (len_inlist > 0) {
call sprintf (file_list, SZ_LINE, "1-%d")
call pargi (len_inlist)
} else
call sprintf (file_list, SZ_LINE, "0")
}
# Decode the ranges string.
if (decode_ranges (file_list, range, MAX_RANGES, len_inlist) == ERR)
call error (1, "T_RFITS: Illegal file number list")
# Open the output file list.
if (make_image == YES) {
call clgstr ("iraf_file", outfile, SZ_FNAME)
if (outfile[1] == EOS) {
if (old_name == YES)
call mktemp ("tmp", outfile, SZ_FNAME)
else
call error (0, "T_RFITS: Undefined output file name")
}
outlist = fntopnb (outfile, NO)
len_outlist = fntlenb (outlist)
data_type = rft_get_image_type (clgetc ("datatype"))
scale = btoi (clgetb ("scale"))
blank = clgetr ("blank")
offset = clgeti ("offset")
} else {
outfile[1] = EOS
outlist = NULL
len_outlist = 1
}
if ((len_outlist > 1) && (len_outlist != len_inlist))
call error (0,
"T_RFITS: Output and input lists have different lengths")
# Get the scan size parameter.
fe = rft_fe (infile)
# Read successive FITS 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 (inlist != NULL) {
if (fntgfnb (inlist, in_fname, SZ_FNAME) == EOF)
call error (0, "T_RFITS: Error reading input file name")
} 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 (outlist == NULL) {
out_fname[1] = EOS
} else if (len_inlist > len_outlist) {
if (fntrfnb (outlist, 1, out_fname, SZ_FNAME) == EOF)
call strcpy (outfile, out_fname, SZ_FNAME)
if (len_inlist > 1) {
call sprintf (out_fname[strlen(out_fname)+1], SZ_FNAME,
"%04d")
call pargi (file_number + offset)
}
} else if (fntgfnb (outlist, out_fname, SZ_FNAME) == EOF)
call error (0, "T_RFITS: Error reading output file name")
# Convert FITS 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 = rft_read_fitz (in_fname, out_fname))
call erract (EA_FATAL)
if (stat == EOF)
break
}
if (inlist != NULL)
call fntclsb (inlist)
if (outlist != NULL)
call fntclsb (outlist)
end
# RFT_GET_IMAGE_TYPE -- Convert a character to and IRAF image type.
int procedure rft_get_image_type (c)
char c
int type_codes[NTYPES], i
string types "usilrdx"
int stridx()
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
# RFT_FE -- Fetch the maximum file size in MB for tape scanning mode.
real procedure rft_fe (file)
char file[ARB] # the input file name
pointer gty
real fe
int mtfile(), gtygeti()
pointer mtcap()
errchk gtygeti()
begin
if (mtfile (file) == NO)
return (0.0)
iferr (gty = mtcap (file))
return (0.0)
iferr (fe = gtygeti (gty, "fe"))
fe = 0.0
call gtyclose (gty)
return (fe)
end
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