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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Prepare the configuration file for the `sbp_fit.py`.
# And extract name, obsid, r500 information from the '*_INFO.json' file
# to fill the config.
#
# Aaron LI
# 2016-04-21
#
# ChangeLog:
#
import sys
import glob
import os
import re
import json
import argparse
from datetime import datetime
def update_sbpfit_conf(sbpfit_conf, info):
"""
Update the sbpfit configuration according to the INFO.
Arguments:
* sbpfit_conf: list of lines of the sample sbpfit config
* info: INFO dictionary
Return:
updated `sbpfit_conf`
"""
name = info["Source Name"]
obsid = int(info["Obs. ID"])
if "R500 (kpc)" in info.keys():
# lwt's
r500_kpc = float(info["R500 (kpc)"])
elif "R500" in info.keys():
# zzh's
r500_kpc = float(info["R500"])
else:
raise ValueError("Cannot get R500 from INFO.json")
# Convert kpc to Chandra ACIS pixel
rmax_sbp_pix = float(info["Rmax_SBP (pixel)"])
rmax_sbp_kpc = float(info["Rmax_SBP (kpc)"])
r500_pix = r500_kpc / rmax_sbp_kpc * rmax_sbp_pix
print("R500: %.2f (kpc), %.2f (pixel)" % (r500_kpc, r500_pix))
sbpfit_conf_new = []
for line in sbpfit_conf:
line_new = re.sub(r"<DATE>", datetime.utcnow().isoformat(), line)
line_new = re.sub(r"<NAME>", name, line_new)
line_new = re.sub(r"<OBSID>", "%s" % obsid, line_new)
line_new = re.sub(r"<R500_PIX>", "%.2f" % r500_pix, line_new)
line_new = re.sub(r"<R500_KPC>", "%.2f" % r500_kpc, line_new)
sbpfit_conf_new.append(line_new)
return sbpfit_conf_new
def main():
parser = argparse.ArgumentParser(description="Prepare sbpfit config")
parser.add_argument("-j", "--json", dest="json", required=False,
help="the *_INFO.json file (default: find ../*_INFO.json)")
parser.add_argument("-c", "--config", dest="config", required=True,
help="sample sbpfit configuration")
parser.add_argument("outfile", nargs="?",
help="filename of the output sbpfit config " + \
"(default: same as the sample config)")
args = parser.parse_args()
# default "*_INFO.json"
info_json = glob.glob("../*_INFO.json")[0]
if args.json:
info_json = args.json
json_str = open(info_json).read().rstrip().rstrip(",")
info = json.loads(json_str)
# sample config file
sbpfit_conf = open(args.config).readlines()
# output config file
if args.outfile:
outfile = args.outfile
else:
outfile = os.path.basename(args.config)
sbpfit_conf_new = update_sbpfit_conf(sbpfit_conf, info)
with open(outfile, "w") as outf:
outf.write("".join(sbpfit_conf_new))
if __name__ == "__main__":
main()
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