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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Aaron LI
# 2015/06/16
"""
Run MARX simulation on a given list of point sources, merge the
output simulation results, and finally convert into FITS image.
"""
__version__ = "0.1.0"
__date__ = "2015/06/16"
import sys
import argparse
import subprocess
import re
def marx_pntsrc(pfile, ra, dec, flux, outdir):
"""
Run MARX simulation for the provided point source.
"""
cmd = "marx @@%(pfile)s SourceRA=%(ra)s " % {"pfile": pfile, "ra": ra} + \
"SourceDEC=%(dec)s SourceFlux=%(flux)s OutputDir=%(outdir)s" % \
{"dec": dec, "flux": flux, "outdir": outdir}
print("CMD: %s" % cmd, file=sys.stderr)
subprocess.call(cmd, shell=True)
def marxcat(indirs, outdir):
"""
Concatenate a list of MARX simulation results.
"""
if isinstance(indirs, list):
marxdirs = " ".join(indirs)
elif isinstance(indirs, str):
marxdirs = indirs
else:
raise ValueError("invalid indirs type: %s" % indirs)
cmd = "marxcat %(marxdirs)s %(outdir)s" % \
{"marxdirs": marxdirs, "outdir": outdir}
print("CMD: %s" % cmd, file=sys.stderr)
subprocess.call(cmd, shell=True)
def marx2fits(indir, outfile, params=""):
"""
Convert the results of MARX simulation into FITS image.
"""
cmd = "marx2fits %(params)s %(indir)s %(outfile)s" % \
{"params": params, "indir": indir, "outfile": outfile}
print("CMD: %s" % cmd, file=sys.stderr)
subprocess.call(cmd, shell=True)
def main():
parser = argparse.ArgumentParser(
description="Run MARX on a given list of point sources")
parser.add_argument("-V", "--version", action="version",
version="%(prog)s " + "%s (%s)" % (__version__, __date__))
parser.add_argument("pfile", help="marx paramter file")
parser.add_argument("srclist", help="point source list file")
parser.add_argument("outprefix", help="prefix of output directories")
args = parser.parse_args()
outdirs = []
i = 0
for line in open(args.srclist, "r"):
if re.match(r"^\s*$", line):
# skip blank line
continue
elif re.match(r"^\s*#", line):
# skip comment line
continue
i += 1
ra, dec, flux = map(float, line.split())
print("INFO: ra = %g, dec = %g, flux = %g" % (ra, dec, flux),
file=sys.stderr)
outdir = "%sp%02d" % (args.outprefix, i)
print("INFO: outdir = %s" % outdir, file=sys.stderr)
outdirs.append(outdir)
marx_pntsrc(args.pfile, ra, dec, flux, outdir)
# merge results
merged = args.outprefix + "merged"
marxcat(outdirs, merged)
# convert to FITS image
merged_fits = merged + ".fits"
marx2fits(merged, merged_fits)
if __name__ == "__main__":
main()
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