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/* File getpix.c
* June 9, 2016
* By Jessica Mink, Harvard-Smithsonian Center for Astrophysics)
* Send bug reports to jmink@cfa.harvard.edu
Copyright (C) 1996-2016
Smithsonian Astrophysical Observatory, Cambridge, MA USA
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <math.h>
#include "libwcs/wcs.h"
#include "libwcs/fitsfile.h"
#include "libwcs/wcscat.h"
#define MAXFILES 2000
static int maxnfile = MAXFILES;
#define MAXNPIX 100;
static int maxnpix = MAXNPIX;
static void usage();
static void PrintPix();
static void procpix();
static char *RevMsg = "GETPIX WCSTools 3.9.5a, 30 March 2017, Jessica Mink (jmink@cfa.harvard.edu)";
static int verbose = 0; /* verbose/debugging flag */
static int version = 0; /* If 1, print only program name and version */
static int nline = 10; /* Number of pixels printer per line */
static char *pform = NULL; /* Format in which to print pixels */
static int pixlabel = 0; /* If 1, label pixels in output */
static int gtcheck = 0; /* If 1, list pixels greater than gtval */
static int ltcheck = 0; /* If 1, list pixels less than ltval */
static int nopunct=0; /* If 1, print output with no punctuation */
static int printrange = 0; /* If 1, print range of values, not values */
static int printmean = 0; /* If 1, print mean of values, not values */
static int printname = 0; /* If 1, print file name */
static double gtval = 0.0;
static double ltval = 0.0;
static double ra0 = -99.0; /* Initial center RA in degrees */
static double dec0 = -99.0; /* Initial center Dec in degrees */
static double rad0 = 0.0; /* Search box radius */
static double dra0 = 0.0; /* Search box width */
static double ddec0 = 0.0; /* Search box height */
static double eqcoor = 2000.0; /* Equinox of search center */
static int syscoor = 0; /* Input search coordinate system */
static int identifier = 0; /* If 1, identifier precedes x y in file */
static int printtab = 0; /* If 1, separate number with tabs */
static int procinit = 1; /* If 1, start mean and limits */
int
main (ac, av)
int ac;
char **av;
{
char *str, *str1;
char listfile[256];
char **fn;
char filename[256];
int ifile, nbytes;
FILE *flist;
char *rrange; /* Row range string */
char *crange; /* Column range string */
char *rstr;
char *dstr = NULL;
char *cstr;
int systemp;
int i;
int npix = 0;
int nfile;
char linebuff[1024];
char listname[256];
char *line;
char xstr[16], ystr[16], temp[64];
int ix, iy;
int *xpix, *ypix;
int iline, nlines;
FILE *fd;
int *xp1, *yp1;
double x, y;
nfile = 0;
fn = (char **)calloc (maxnfile, sizeof(char *));
xpix = (int *)calloc (maxnpix, sizeof (int));
ypix = (int *)calloc (maxnpix, sizeof (int));
/* Check for help or version command first */
str = *(av+1);
if (!str || !strcmp (str, "help") || !strcmp (str, "-help"))
usage();
if (!strcmp (str, "version") || !strcmp (str, "-version")) {
version = 1;
usage();
}
crange = NULL;
rrange = NULL;
/* crack arguments */
for (av++; --ac > 0; av++) {
str = *av;
if (ac > 0)
str1 = *(av+1);
else
str1 = NULL;
/* Output format */
if (str[0] == '%') {
pform = *av;
}
/* Other command */
else if (str[0] == '-') {
char c;
while ((c = *++str))
switch (c) {
case 'v': /* more verbosity */
verbose++;
break;
case 'd': /* Print range of values */
printrange=1;
break;
case 'g': /* Keep pixels greater than this */
if (ac < 2)
usage();
gtval = atof (*++av);
gtcheck++;
ac--;
break;
case 'h': /* Print file name above pixel values */
printname++;
break;
case 'i': /* Identifier precedes x y in file */
identifier++;
break;
case 'l': /* Keep pixels less than this */
if (ac < 2)
usage();
ltval = atof (*++av);
ltcheck++;
ac--;
break;
case 'm': /* Print mean, sigma of values */
printmean = 1;
break;
case 'n': /* Number of pixels per line */
if (ac < 2)
usage();
nline = atoi (*++av);
ac--;
break;
case 'p': /* label pixels */
pixlabel++;
break;
case 'r': /* Box radius in arcseconds */
if (ac < 2)
usage ();
av++;
if ((dstr = strchr (*av, ',')) != NULL) {
*dstr = (char) 0;
dstr++;
}
if (strchr (*av,':'))
rad0 = 3600.0 * str2dec (*av);
else
rad0 = atof (*av);
if (dstr != NULL) {
dra0 = rad0;
rad0 = 0.0;
if (strchr (dstr, ':'))
ddec0 = 3600.0 * str2dec (dstr);
else
ddec0 = atof (dstr);
if (ddec0 <= 0.0)
ddec0 = dra0;
/* rad0 = sqrt (dra0*dra0 + ddec0*ddec0); */
}
ac--;
break;
case 's': /* Print x y value without punctuation */
nopunct++;
break;
case 't': /* Separate pixels with tabs */
printtab++;
break;
default:
usage();
break;
}
}
/* Set search RA, Dec, and equinox if colon in argument */
else if (isnum (str) == 3 && isnum (str1) == 3) {
if (ac < 2)
usage ();
else {
strcpy (rstr, str);
ac--;
av++;
strcpy (dstr, str1);
ra0 = str2ra (rstr);
dec0 = str2dec (dstr);
ac--;
if (ac < 1) {
syscoor = WCS_J2000;
eqcoor = 2000.0;
}
else if ((syscoor = wcscsys (*(av+1))) >= 0)
eqcoor = wcsceq (*++av);
else {
syscoor = WCS_J2000;
eqcoor = 2000.0;
}
}
}
/* Search coordinates in degrees if coordinate system specified */
else if (isnum (str) == 2 && isnum (str) == 2) {
rstr = str;
dstr = str1;
ac--;
av++;
av++;
if (ac > 0 && (systemp = wcscsys (*av)) > 0) {
ra0 = atof (rstr);
dec0 = atof (dstr);
cstr = *av++;
syscoor = systemp;
eqcoor = wcsceq (cstr);
}
/* Fractional coordinate pair if no coordinate system */
else {
if (npix+1 > maxnpix) {
maxnpix = 2 * maxnpix;
xp1 = calloc (maxnpix, sizeof (int));
yp1 = calloc (maxnpix, sizeof (int));
for (i = 0; i < maxnpix; i++) {
xp1[i] = xpix[i];
yp1[i] = ypix[i];
}
free (xpix);
free (ypix);
xpix = xp1;
ypix = yp1;
}
x = atof (rstr);
if (x > 0.0)
ix = (int) (x + 0.5);
else if (x < 0.0)
ix = (int) (x - 0.5);
else
ix = 0;
y = atof (dstr);
if (y > 0.0)
iy = (int) (y + 0.5);
else if (y < 0.0)
iy = (int) (y - 0.5);
else
iy = 0;
xpix[npix] = ix;
ypix[npix] = iy;
npix++;
}
}
/* Coordinate pairs for pixels to print */
else if (isnum (str) == 1 && isnum (str1) == 1) {
if (npix+1 > maxnpix) {
maxnpix = 2 * maxnpix;
xp1 = calloc (maxnpix, sizeof (int));
yp1 = calloc (maxnpix, sizeof (int));
for (i = 0; i < maxnpix; i++) {
xp1[i] = xpix[i];
yp1[i] = ypix[i];
}
free (xpix);
free (ypix);
xpix = xp1;
ypix = yp1;
}
ix = atoi (str);
iy = atoi (str1);
if (ix == 0 || iy == 0) {
crange = str1;
rrange = str;
}
else {
xpix[npix] = ix;
ypix[npix] = iy;
npix++;
}
av++;
ac--;
}
/* Range of pixels to print (only one allowed) */
else if (isrange (str) && isrange (str1)) {
crange = str;
rrange = str1;
ac--;
av++;
}
/* File containing a list of files or image coordinates */
else if (str[0] == '@') {
strcpy (listname, str+1);
if (isimlist (listname)) {
strcpy (listfile, listname);
listname[0] = (char) 0;
}
else {
nlines = getfilelines (listname);
fd = fopen (listname, "r");
if (fd == NULL) {
fprintf (stderr, "GETPIX: Cannot read file %s\n", listname);
nlines = 0;
}
for (iline = 0; iline < nlines; iline++) {
if (!fgets (linebuff, 1023, fd))
break;
line = linebuff;
if (line[0] == '#')
continue;
if (identifier)
sscanf (line,"%s %s %s", temp, xstr, ystr);
else
sscanf (line,"%s %s", xstr, ystr);
if (npix+1 > maxnpix) {
maxnpix = 2 * maxnpix;
xp1 = calloc (maxnpix, sizeof (int));
yp1 = calloc (maxnpix, sizeof (int));
for (i = 0; i < maxnpix; i++) {
xp1[i] = xpix[i];
yp1[i] = ypix[i];
}
free (xpix);
free (ypix);
xpix = xp1;
ypix = yp1;
}
xpix[npix] = atoi (xstr);
ypix[npix] = atoi (ystr);
npix++;
}
}
ac--;
}
/* Image file name */
else if (isfits (str) || isiraf (str)) {
if (nfile >= maxnfile) {
maxnfile = maxnfile * 2;
nbytes = maxnfile * sizeof (char *);
fn = (char **) realloc ((void *)fn, nbytes);
}
fn[nfile] = str;
nfile++;
}
}
if ((crange && rrange) || npix > 0) {
/* Process files already read from the command line */
if (fn) {
for (ifile = 0; ifile < nfile; ifile++) {
PrintPix (fn[ifile], crange, rrange, npix, xpix, ypix);
}
}
/* Process files from listfile one at a time */
else if (isimlist (listfile)) {
nfile = getfilelines (listfile);
if ((flist = fopen (listfile, "r")) == NULL) {
fprintf (stderr,"GETPIX: Image list file %s cannot be read\n",
listfile);
usage ();
}
for (ifile = 0; ifile < nfile; ifile++) {
first_token (flist, 254, filename);
PrintPix (filename, crange, rrange, npix, xpix, ypix);
}
fclose (flist);
}
}
free (xpix);
free (ypix);
free (fn);
return (0);
}
static void
usage ()
{
fprintf (stderr,"%s\n",RevMsg);
if (version)
exit (-1);
fprintf (stderr,"Print FITS or IRAF pixel values\n");
fprintf(stderr,"Usage: getpix [-vp][-n num][-g val][-l val][format] file.fit x_range y_range\n");
fprintf(stderr," or getpix [-vp][-n num][-g val][-l val][format] file.fit x1 y1 x2 y2 ... xn yn\n");
fprintf(stderr," or getpix [-vp][-n num][-g val][-l val][format] file.fit @file\n");
fprintf(stderr," format: C-style (%%f, %%d, ...) format for pixel values\n");
fprintf(stderr," file: File with x y coordinates as first two tokens on lines\n");
fprintf(stderr," -d: Print range of pixel values in specified image region\n");
fprintf(stderr," -f name: Write specified region to a FITS file\n");
fprintf(stderr," -g num: keep pixels with values greater than this\n");
fprintf(stderr," -h: print file name on line above pixel values\n");
fprintf(stderr," -i: Ignore first token per line of coordinate file\n");
fprintf(stderr," -l num: keep pixels with values less than this\n");
fprintf(stderr," -m: Print mean of pixel values in specified image region\n");
fprintf(stderr," -n num: number of pixel values printed per line\n");
fprintf(stderr," -p: label pixels\n");
fprintf(stderr," -r num: radius (<0=box) to extract in degrees/arcsec\n");
fprintf(stderr," -s: print x y value with no punctuation\n");
fprintf(stderr," -v: verbose\n");
fprintf(stderr," %%: C format for each pixel value\n");
exit (1);
}
static void
PrintPix (name, crange, rrange, npix, xpix, ypix)
char *name;
char *crange; /* Column range string */
char *rrange; /* Row range string */
int npix; /* Number of coordinate pairs */
int *xpix, *ypix; /* Vectors of x,y coordinate pairs */
{
char *header; /* FITS image header */
int lhead; /* Maximum number of bytes in FITS header */
int nbhead; /* Actual number of bytes in FITS header */
char *irafheader; /* IRAF image header */
char *image; /* FITS or IRAF image */
double bzero; /* Zero point for pixel scaling */
double bscale; /* Scale factor for pixel scaling */
int iraffile;
double dpix, dsum, dmean, dmin, dmax, dnpix;
char *c;
int *yi;
int bitpix,xdim,ydim, i, nx, ny, ix, iy, x, y, pixperline;
int ipix = 0;
char pixname[255];
char nform[8];
struct Range *xrange; /* X range structure */
struct Range *yrange; /* Y range structure */
/* Open IRAF image if .imh extension is present */
if (isiraf (name)) {
iraffile = 1;
if ((irafheader = irafrhead (name, &lhead)) != NULL) {
header = iraf2fits (name, irafheader, lhead, &nbhead);
free (irafheader);
if (header == NULL) {
fprintf (stderr, "Cannot translate IRAF header %s/n",name);
return;
}
if ((image = irafrimage (header)) == NULL) {
hgetm (header,"PIXFIL", 255, pixname);
fprintf (stderr, "Cannot read IRAF pixel file %s\n", pixname);
free (irafheader);
free (header);
return;
}
}
else {
fprintf (stderr, "Cannot read IRAF file %s\n", name);
return;
}
}
/* Open FITS file if .imh extension is not present */
else {
iraffile = 0;
if ((header = fitsrhead (name, &lhead, &nbhead)) != NULL) {
if ((image = fitsrimage (name, nbhead, header)) == NULL) {
fprintf (stderr, "Cannot read FITS image %s\n", name);
free (header);
return;
}
}
else {
fprintf (stderr, "Cannot read FITS file %s\n", name);
return;
}
}
if (printname) {
if (ltcheck & gtcheck)
fprintf (stderr, "%s: %f < pixel values < %f\n", name, gtval, ltval);
else if (ltcheck)
fprintf (stderr, "%s: pixel values < %f\n", name, ltval);
else if (gtcheck)
fprintf (stderr, "%s: pixel values > %f\n", name, gtval);
else
fprintf (stderr,"%s:\n", name);
}
if (verbose) {
fprintf (stderr,"%s\n",RevMsg);
if (npix > 0)
fprintf (stderr,"Print pixels in ");
else if (!strcmp (crange, "0"))
fprintf (stderr,"Print rows %s in ", rrange);
else if (!strcmp (rrange, "0"))
fprintf (stderr,"Print columns %s in ", crange);
else
fprintf (stderr,"Print rows %s, columns %s in ", rrange, crange);
if (iraffile)
fprintf (stderr,"IRAF image file %s\n", name);
else
fprintf (stderr,"FITS image file %s\n", name);
if (ltcheck & gtcheck)
fprintf (stderr, "%f < pixel values < %f\n", gtval, ltval);
else if (ltcheck)
fprintf (stderr, "pixel values < %f\n", ltval);
else if (gtcheck)
fprintf (stderr, "pixel values > %f\n", gtval);
}
if (verbose && !pixlabel)
pixperline = 1;
else
pixperline = 0;
/* Get value of specified pixel */
/* Get size of image and scaling factors */
hgeti4 (header,"BITPIX",&bitpix);
xdim = 1;
hgeti4 (header,"NAXIS1",&xdim);
ydim = 1;
hgeti4 (header,"NAXIS2",&ydim);
bzero = 0.0;
hgetr8 (header,"BZERO",&bzero);
bscale = 1.0;
hgetr8 (header,"BSCALE",&bscale);
/* Set initial values */
dsum = 0.0;
dnpix = 0.0;
dmin = 0.0;
dmax = 0.0;
procinit = 1;
/* Set format if not already set */
if (pform == NULL) {
pform = (char *) calloc (8,1);
if (bitpix > 0)
strcpy (pform, "%d");
else
strcpy (pform, "%.2f");
}
/* Print values at specified coordinates in an image */
if (npix > 0) {
/* Loop through rows starting with the last one */
for (i = 0; i < npix; i++) {
dpix = getpix1(image,bitpix,xdim,ydim,bzero,bscale,xpix[i],ypix[i]);
if (gtcheck || ltcheck) {
if ((gtcheck && dpix > gtval) ||
(ltcheck && dpix < ltval)) {
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (nopunct)
printf ("%d %d %f\n", xpix[i], ypix[i], dpix);
else
printf ("[%d,%d] = %f\n", xpix[i], ypix[i], dpix);
}
continue;
}
else
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (printrange || printmean)
continue;
if (bitpix > 0) {
if ((c = strchr (pform,'f')) != NULL)
*c = 'd';
if (dpix > 0)
ipix = (int) (dpix + 0.5);
else if (dpix < 0)
ipix = (int) (dpix - 0.5);
else
ipix = 0;
}
else {
if ((c = strchr (pform,'d')) != NULL)
*c = 'f';
}
if (pixperline) {
printf ("%s[%d,%d] = ",name,xpix[i],ypix[i]);
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
printf ("\n");
}
else {
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
if ((i+1) % nline == 0)
printf ("\n");
else if (printtab)
printf ("\t");
else
printf (" ");
}
}
if (!pixperline && !ltcheck && !gtcheck)
printf ("\n");
}
/* Print entire image */
else if (!strcmp (rrange, "0") && !strcmp (crange, "0")) {
if (printmean || printrange) {
nx = xdim;
ny = ydim;
for (y = 0; y < ny; y++) {
for (x = 0; x < nx; x++) {
dpix = getpix (image,bitpix,xdim,ydim,bzero,bscale,x,y);
if (!gtcheck && !ltcheck)
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
else if (gtcheck && ltcheck) {
if (dpix > gtval && dpix < ltval)
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
}
else if ((gtcheck && dpix > gtval) ||
(ltcheck && dpix < ltval))
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
}
}
}
else if (gtcheck || ltcheck) {
nx = xdim;
ny = ydim;
for (y = 0; y < ny; y++) {
for (x = 0; x < nx; x++) {
dpix = getpix (image,bitpix,xdim,ydim,bzero,bscale,x,y);
if (gtcheck && ltcheck) {
if (dpix > gtval && dpix < ltval) {
if (nopunct)
printf ("%d %d %f\n", x+1, y+1, dpix);
else
printf ("[%d,%d] = %f\n", x+1, y+1, dpix);
}
}
else if ((gtcheck && dpix > gtval) ||
(ltcheck && dpix < ltval)) {
if (nopunct)
printf ("%d %d %f\n", x+1, y+1, dpix);
else
printf ("[%d,%d] = %f\n", x+1, y+1, dpix);
}
}
}
}
else
printf ("GETPIX will not print this %d x %d image; use ranges\n",
xdim, ydim);
}
/* Print entire columns */
else if (!strcmp (rrange, "0")) {
xrange = RangeInit (crange, xdim);
nx = rgetn (xrange);
ny = ydim;
for (ix = 0; ix < nx; ix++) {
rstart (xrange);
x = rgeti4 (xrange) - 1;
for (y = 0; y < ny; y++) {
dpix = getpix (image,bitpix,xdim,ydim,bzero,bscale,x,y);
if (gtcheck || ltcheck) {
if ((gtcheck && dpix > gtval) ||
(ltcheck && dpix < ltval)) {
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (nopunct)
printf ("%d %d %f\n", x+1, y+1, dpix);
else
printf ("[%d,%d] = %f\n", x+1, y+1, dpix);
}
continue;
}
else
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (bitpix > 0) {
if (dpix > 0)
ipix = (int) (dpix + 0.5);
else if (dpix < 0)
ipix = (int) (dpix - 0.5);
else
ipix = 0;
}
if (pixperline) {
printf ("%s[%d,%d] = ",name,x,y);
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
printf ("\n");
}
else {
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
if ((y+1) % nline == 0)
printf ("\n");
else if (printtab)
printf ("\t");
else
printf (" ");
}
}
if (y % nline != 0 && !gtcheck && !ltcheck)
printf ("\n");
if (nx > 1 && !gtcheck && !ltcheck)
printf ("\n");
}
free (xrange);
}
/* Print entire rows */
else if (!strcmp (crange, "0")) {
yrange = RangeInit (rrange, xdim);
ny = rgetn (yrange);
nx = xdim;
for (iy = 0; iy < ny; iy++) {
y = rgeti4 (yrange) - 1;
for (x = 0; x < nx; x++) {
dpix = getpix (image,bitpix,xdim,ydim,bzero,bscale,x,y);
if (gtcheck || ltcheck) {
if ((gtcheck && dpix > gtval) ||
(ltcheck && dpix < ltval)) {
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (nopunct)
printf ("%d %d %f\n", x+1, y+1, dpix);
else
printf ("[%d,%d] = %f\n", x+1, y+1, dpix);
}
continue;
}
else
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (bitpix > 0) {
if (dpix > 0)
ipix = (int) (dpix + 0.5);
else if (dpix < 0)
ipix = (int) (dpix - 0.5);
else
ipix = 0;
}
if (pixperline) {
printf ("%s[%d,%d] = ",name,x,y);
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
printf ("\n");
}
else {
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
if ((x+1) % nline == 0)
printf ("\n");
else if (printtab)
printf ("\t");
else
printf (" ");
}
}
if (x % nline != 0 && !gtcheck && !ltcheck)
printf ("\n");
if (ny > 1 && !gtcheck && !ltcheck)
printf ("\n");
}
free (yrange);
}
/* Print a region of a two-dimensional image */
else {
xrange = RangeInit (crange, xdim);
nx = rgetn (xrange);
/* Make list of y coordinates */
yrange = RangeInit (rrange, ydim);
ny = rgetn (yrange);
yi = (int *) calloc (ny, sizeof (int));
for (i = 0; i < ny; i++) {
yi[i] = rgeti4 (yrange) - 1;
}
/* Label horizontal pixels */
if (pixlabel) {
printf ("Coord");
rstart (xrange);
strcpy (nform, pform);
if ((c = strchr (nform,'.')) != NULL) {
*c = 'd';
c[1] = (char) 0;
}
else if ((c = strchr (nform,'f')) != NULL) {
*c = 'd';
}
for (ix = 0; ix < nx; ix++) {
x = rgeti4 (xrange);
if (printtab)
printf ("\t");
else
printf (" ");
printf (nform, x);
}
printf ("\n");
}
if (verbose)
iy = -1;
else
iy = ny;
/* Loop through rows starting with the last one */
for (i = 0; i < ny; i++) {
if (verbose)
iy++;
else
iy--;
rstart (xrange);
if (pixlabel) {
printf ("%4d:",yi[iy]+1);
if (printtab)
printf ("\t");
else
printf (" ");
}
/* Loop through columns */
for (ix = 0; ix < nx; ix++) {
x = rgeti4 (xrange) - 1;
dpix = getpix (image,bitpix,xdim,ydim,bzero,bscale,x,yi[iy]);
if (gtcheck || ltcheck) {
if ((gtcheck && dpix > gtval) ||
(ltcheck && dpix < ltval)) {
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (nopunct)
printf ("%d %d %f\n", x+1, yi[iy]+1, dpix);
else
printf ("[%d,%d] = %f\n", x+1, yi[iy]+1, dpix);
}
continue;
}
else
procpix (&dsum, &dnpix, &dmin, &dmax, dpix);
if (printrange || printmean)
continue;
if (bitpix > 0) {
if ((c = strchr (pform,'f')) != NULL)
*c = 'd';
if (dpix > 0)
ipix = (int) (dpix + 0.5);
else if (dpix < 0)
ipix = (int) (dpix - 0.5);
else
ipix = 0;
}
else {
if ((c = strchr (pform,'d')) != NULL)
*c = 'f';
}
if (pixperline) {
printf ("%s[%d,%d] = ",name,x+1,yi[i]+1);
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
printf ("\n");
}
else {
if (bitpix > 0)
printf (pform, ipix);
else
printf (pform, dpix);
if ((ix+1) % nline == 0)
printf ("\n");
else if (printtab)
printf ("\t");
else
printf (" ");
}
}
if (!pixperline && !ltcheck && !gtcheck) {
if (!printrange && !printmean && ix % nline != 0)
printf ("\n");
}
}
free (xrange);
free (yrange);
}
if (printmean) {
dmean = dsum / dnpix;
if (verbose)
printf ("Mean= %.4f ", dmean);
else
printf ("%.4f", dmean);
}
if (printrange) {
if (printmean)
printf (" ");
if (verbose)
printf ("Range = %.4f - %.4f ", dmin, dmax);
else
printf ("%.4f %.4f", dmin, dmax);
}
if (printmean || printrange) {
if (verbose)
printf ("for %d pixels\n", (int) dnpix);
else
printf ("\n");
}
free (header);
free (image);
return;
}
static void
procpix (dsum, dnpix, dmin, dmax, dpix)
double *dsum; /* Sum of pixel values */
double *dnpix; /* Number of pixels so far */
double *dmin; /* Minimum pixel value */
double *dmax; /* Maximum pixel value */
double dpix; /* Current pixel value */
{
if (procinit) {
*dsum = dpix;
*dnpix = 1.0;
*dmin = dpix;
*dmax = dpix;
}
else {
*dsum = *dsum + dpix;
*dnpix = *dnpix + 1.0;
if (dpix < *dmin)
*dmin = dpix;
else if (dpix > *dmax)
*dmax = dpix;
}
procinit = 0;
}
/* Dec 6 1996 New program
*
* Feb 21 1997 Check pointers against NULL explicitly for Linux
* Dec 15 1997 Add capability of reading and writing IRAF 2.11 images
*
* May 27 1998 Include fitsio.h instead of fitshead.h
* Jul 24 1998 Make irafheader char instead of int
* Aug 6 1998 Change fitsio.h to fitsfile.h
* Oct 14 1998 Use isiraf() to determine file type
* Nov 30 1998 Add version and help commands for consistency
*
* Feb 12 1999 Initialize dxisn to 1 so it works for 1-D images
* Apr 29 1999 Add BZERO and BSCALE
* Jun 29 1999 Fix typo in BSCALE setting
* Jul 2 1999 Use ranges instead of individual pixels
* Oct 15 1999 Fix format statement
* Oct 22 1999 Drop unused variables after lint
* Dec 9 1999 Add -g -l limits
* Dec 13 1999 Fix bug so that -g and -l limits can be ANDed
*
* Mar 23 2000 Use hgetm() to get the IRAF pixel file name, not hgets()
*
* Jan 30 2001 Fix format specification in help message
*
* Jun 3 2002 Add -s option to print x y value with no punctuation
* Oct 30 2002 Add code to count lines when printing a region
*
* Feb 20 2003 Add option to enter multiple pixel (x,y) as well as ranges
* Mar 26 2003 Fix pixel counter bug in individual pixel printing
* Sep 17 2003 Fix bug which broke use of 0 as substitute for 1-naxisn range
*
* Apr 26 2004 Fix handling of 0 0 for entire image
* Aug 30 2004 Fix declarations
* Sep 21 2004 Fix bug which used x instead of ix for number of elements printed
*
* Jul 29 2005 Add mean and range computation
*
* Jun 21 2006 Clean up code
*
* Jan 10 2007 Declare RevMsg static, not const
* Dec 20 2007 Add option to read x y coordinates from a file
* Dec 21 2007 Fix bug reallocating coordinate list when current size exceeded
*
* Aug 14 2009 If coordinates are floating point round to appropriate pixel
*
* Sep 21 2010 Add option -t to separate numbers by tabs
* Sep 21 2010 Fix bug in computing means and limits
*
* Feb 22 2012 Print descriptors for mean and limits only in verbose mode
* Feb 22 2012 Fix bug to avoid printing all pixels if printing mean and/or limits
*
* Jan 10 2014 Get same pixels from multiple files
* Jan 10 2014 Add command line option @listfile as list of files
*
* Jun 9 2016 Fix isnum() tests for added coloned times and dashed dates
*/
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