From 20bc7a6b1d162a098055e384da9041792226f7ca Mon Sep 17 00:00:00 2001
From: Aaron LI <aaronly.me@outlook.com>
Date: Mon, 11 Jul 2016 22:40:03 +0800
Subject: deproject_sbp.py: Use a default config to allow a minimal user config

---
 deproject_sbp.py | 63 ++++++++++++++++++++++++++++----------------------------
 1 file changed, 31 insertions(+), 32 deletions(-)

diff --git a/deproject_sbp.py b/deproject_sbp.py
index dc8601d..9f00e74 100755
--- a/deproject_sbp.py
+++ b/deproject_sbp.py
@@ -2,9 +2,11 @@
 #
 # Aaron LI
 # Created: 2016-06-10
-# Updated: 2016-07-10
+# Updated: 2016-07-11
 #
 # Change logs:
+# 2016-07-11:
+#   * Use a default config to allow a minimal user config
 # 2016-07-10:
 #   * Use class 'SmoothSpline' from module
 # 2016-07-04:
@@ -125,12 +127,29 @@ References:
 [5] AtomDB / APEC model:
     * http://www.atomdb.org/faq.php#DensityXSPECnorm
     * https://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/manual/XSmodelApec.html
+"""
+
+import argparse
+import json
+from collections import OrderedDict
+
+import astropy.units as au
+import numpy as np
+import pandas as pd
+import matplotlib.pyplot as plt
+from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
+from matplotlib.figure import Figure
+from configobj import ConfigObj
+
+from astro_params import AstroParams, ChandraPixel
+from projection import Projection
+from fitting_models import PLCModel
+from spline import SmoothSpline
 
+plt.style.use("ggplot")
 
-Sample configuration file:
-------------------------------------------------------------
+config_default = """
 ## Configuration for `deproject_sbp.py`
-## Date: 2016-06-23
 
 # config file for SBP fitting (e.g., sbpfit.conf)
 sbpfit_config = sbpfit.conf
@@ -139,16 +158,16 @@ sbpfit_config = sbpfit.conf
 coolfunc_profile = coolfunc_profile.txt
 
 # redshift of the object (for pixel to distance conversion)
-redshift = <REDSHIFT>
+#redshift = <REDSHIFT>
 
 ## SBP extrapolation
 # ignorance radius from which the SBP is fitted for extrapolation,
 # specified by the ratio w.r.t sbpfit rc (default: 1.2 * rc)
 sbpexp_rignore_ratio = 1.2
 # or directly specify the ignorance radius (override above) (unit: pixel)
-sbpexp_rignore = <RIGNORE>
+#sbpexp_rignore = <RIGNORE>
 # cut radius to which stop the extrapolation (unit: kpc)
-sbpexp_rcut = <RCUT>
+sbpexp_rcut = 3000
 # output of the extrapolated SBP
 sbpexp_outfile = sbpexp.csv
 # extrapolation model information
@@ -163,28 +182,8 @@ ne_profile = ne_profile.txt
 rho_gas_profile = rho_gas_profile.txt
 # image of the density profiles (electron density and/or gas density)
 density_profile_image = density_profile.png
-------------------------------------------------------------
 """
 
-import argparse
-import json
-from collections import OrderedDict
-
-import astropy.units as au
-import numpy as np
-import pandas as pd
-import matplotlib.pyplot as plt
-from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas
-from matplotlib.figure import Figure
-from configobj import ConfigObj
-
-from astro_params import AstroParams, ChandraPixel
-from projection import Projection
-from fitting_models import PLCModel
-from spline import SmoothSpline
-
-plt.style.use("ggplot")
-
 
 class SBP:
     """
@@ -434,9 +433,9 @@ class BrightnessProfile:
     ne = None
     # calculated gas mass density profile
     rho_gas = None
-    # fitted smoothing spline to the SBP
+    # fitted `SmoothSpline` object of the SBP
     s_spline = None
-    # fitted smoothing spline to the cooling function profile
+    # fitted `SmoothSpline` of the cooling function profile
     cf_spline = None
 
     def __init__(self, sbp_data, cf_data, z):
@@ -626,8 +625,6 @@ class BrightnessProfile:
         fig.tight_layout()
         return (fig, ax, ax2)
 
-######################################################################
-
 
 def main():
     parser = argparse.ArgumentParser(
@@ -637,7 +634,9 @@ def main():
                              "(default: sbpdeproj.conf)")
     args = parser.parse_args()
 
-    config = ConfigObj(args.config)
+    config = ConfigObj(config_default.splitlines())
+    config_user = ConfigObj(args.config)
+    config.merge(config_user)
     sbpfit_conf = ConfigObj(config["sbpfit_config"])
     try:
         sbpfit_outfile = sbpfit_conf[sbpfit_conf["model"]]["outfile"]
-- 
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