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Diffstat (limited to 'bin/hpx2healpix.py')
-rwxr-xr-x | bin/hpx2healpix.py | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/bin/hpx2healpix.py b/bin/hpx2healpix.py deleted file mode 100755 index 6f83426..0000000 --- a/bin/hpx2healpix.py +++ /dev/null @@ -1,69 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (c) 2016 Weitian LI <liweitianux@live.com> -# MIT license - -""" -Recover the sky map in HPX projection format back into HEALPix table format, -i.e., the reverse of `healpix2hpx.py`. -""" - -import os -import sys -import argparse - -import numpy as np -from astropy.io import fits - -import fg21sim -from fg21sim.utils import hpx2healpix - - -# Reference: -# http://docs.astropy.org/en/stable/io/fits/usage/table.html#column-creation -FITS_COLUMN_FORMATS = { - np.dtype("int16"): "I", - np.dtype("int32"): "J", - np.dtype("int64"): "K", - np.dtype("float32"): "E", - np.dtype("float64"): "D", -} - - -def main(): - parser = argparse.ArgumentParser( - description="Recover the image in HPX projection to HEALPix data") - parser.add_argument("infile", help="input FITS image in HPX projection") - parser.add_argument("outfile", help="output HEALPix data file") - parser.add_argument("-C", "--clobber", action="store_true", - help="overwrite the existing output file") - parser.add_argument("-F", "--float", action="store_true", - help="use float (single precision) instead of double") - args = parser.parse_args() - - tool = os.path.basename(sys.argv[0]) - history = [ - "TOOL: {0}".format(tool), - "PARAM: {0}".format(" ".join(sys.argv[1:])), - ] - comments = [ - 'Tool "{0}" is part of the "{1}" package'.format(tool, - fg21sim.__title__), - 'distributed under {0} license.'.format(fg21sim.__license__), - 'See also {0}'.format(fg21sim.__url__) - ] - - hp_data, hp_header = hpx2healpix(args.infile, - append_history=history, - append_comment=comments) - if args.float: - hp_data = hp_data.astype(np.float32) - hdu = fits.BinTableHDU.from_columns([ - fits.Column(name="I", array=hp_data, - format=FITS_COLUMN_FORMATS.get(hp_data.dtype)) - ], header=hp_header) - hdu.writeto(args.outfile, clobber=args.clobber, checksum=True) - - -if __name__ == "__main__": - main() |