Initial version
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<root>
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<common>
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<wl_min val="400" units="nanometer" comment="Shortest wavelength used for binning input spectra"/>
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<wl_max val="5" units="micron" comment="Shortest wavelength used for binning input spectra"/>
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<logbinres val="1000" units="" comment="Resolving power for common spectral binning. A linear binning wavelength integral is estimated as wl_min/R"/>
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<d_aperture val="5" units="m" comment="Diameter of the telescope aperture"/>
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<jitter_rms val="0.1" units="arcsec" comment="Sigma RMS of the telescope jitter"/>
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<output_path val="../output" comment="Output directory to store output files"/>
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<config_path val="__path__"/>
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</common>
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<!-- <noise>-->
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<!-- <EnableJitter val="False"/>-->
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<!-- <EnableShotNoise val="True"/>-->
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<!-- <EnableReadoutNoise val="True"/>-->
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<!-- </noise>-->
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<astroscene>
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<target type="BlackBodyTarget" val="5778" units="K" mag="10" band="G" comment="Modeling the sun as mag 10 star"/>
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<medium type="Atmosphere" transmissivity="__base__/data/atmosphere/transmittance.csv"
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emission="__base__/data/atmosphere/emission.csv" comment="Including the atmosphere"/>
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<medium type="StrayLight" emission="__base__/data/strayLight/emission.csv"
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comment="Including arbitrary noise sources"/>
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</astroscene>
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<common_optics>
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<optical_component type="Mirror" reflectivity="__path__/data/mirror/reflectivity.csv"
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emissivity="__path__/data/mirror/emissivity.csv" val="70" units="K" comment="M1"/>
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<optical_component type="Mirror" reflectivity="__path__/data/mirror/reflectivity.csv"
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emissivity="__path__/data/mirror/emissivity.csv" val="70" units="K" comment="M2"/>
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<optical_component type="Mirror" reflectivity="__path__/data/mirror/reflectivity.csv"
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emissivity="__path__/data/mirror/emissivity.csv" val="70" units="K" comment="M3"/>
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<optical_component type="Filter" band="G"
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emissivity="__path__/data/filter/emissivity.csv" val="70" units="K" comment="Filter wheel"/>
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</common_optics>
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<instrument>
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<optical_component type="Mirror" reflectivity="__path__/data/mirror/reflectivity.csv"
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emissivity="__path__/data/mirror/emissivity.csv" val="70" units="K" comment="M4"/>
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<optical_component type="Filter" band="G"
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emissivity="__path__/data/filter/emissivity.csv" val="70" units="K" comment="Filter wheel"/>
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<sensor type="CCD">
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<f_number val="18.5" units="" comment="The working f/#"/>
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<pixel_geometry val="1024, 1024" units="" comment="Pixel geometry"/>
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<pixel>
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<quantum_efficiency val="__path__/data/ccd/qe.csv" comment="Quantum efficiency of the detector pixel"/>
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<pixel_size val="15" units="micron"/>
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<dark_current val="20" units="1/s" comment="Detector dark current"/>
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<sigma_read_out val="10.0" units="" comment="Detector readout noise in e-rms"/>
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</pixel>
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</sensor>
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</instrument>
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</root>
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from esbo_etc.classes import *
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from esbo_etc.modules import *
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# __root__ = "."
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from esbo_etc.classes.config import *
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import xml.etree.ElementTree as eT
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import numpy as np
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import quantities as pq
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import os
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import logging
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import sys
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class Entry(object):
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"""
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A class used to represent a configuration entry.
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"""
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val = None
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attrib = None
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xml_entry = None
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def __call__(self):
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return self.val
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def parse(self, xml):
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"""
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Parse a XML tree element
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:param xml: XML element tree to parse
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"""
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self.attrib = xml.attrib
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for attr in self.attrib.keys():
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setattr(self, attr, self.attrib[attr])
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if hasattr(self, 'units'):
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try:
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self.val = pq.Quantity(list(map(float, self.val.split(','))),
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self.units).simplified
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if self.units == 'deg':
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self.val = [x * pq.rad for x in self.val] # workaround for qt unit conversion
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if len(self.val) == 1:
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self.val = self.val[0]
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except (ValueError, LookupError):
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logging.error('unable to convert units in entry [tag, units, value]: ',
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xml.tag, self.units, self.val)
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class Configuration(object):
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"""
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A Class to parse the XML configuration file.
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Attributes
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----------
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conf : str
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Parsed XML tree
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"""
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conf = None
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def __init__(self, filename="esbo-etc_defaults.xml", default_path=None):
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"""
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Parse a XML configuration file.
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Parameters
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----------
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filename : str
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configuration file to parse
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default_path : str
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default path to use for relative paths
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"""
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if not os.path.exists(filename):
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logging.error("Configuration file '" + filename + "' doesn't exist.")
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sys.exit(1)
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logging.info("Reading configuration from file '" + filename + "'.")
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self.conf = self.parser(eT.parse(filename).getroot())
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if default_path:
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setattr(self.conf, "__path__", default_path)
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elif hasattr(self.conf.common, "ConfigPath"):
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setattr(self.conf, "__path__",
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os.path.expanduser(self.conf.common.ConfigPath().replace('__path__', os.getcwd())))
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else:
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logging.error("Path to config files not defined")
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self.validate_options()
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self.calc_metaoptions()
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def parser(self, root):
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"""
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Parse a XML configuration file.
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Parameters
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----------
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root : ElementTree
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The XML tree to be parsed
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Returns
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-------
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obj : Entry
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The parsed XML tree
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"""
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obj = Entry()
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for ch in root:
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retval = self.parser(ch)
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retval.parse(ch)
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if hasattr(obj, ch.tag):
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if isinstance(getattr(obj, ch.tag), list):
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getattr(obj, ch.tag).append(retval)
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else:
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setattr(obj, ch.tag, [getattr(obj, ch.tag), retval])
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else:
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setattr(obj, ch.tag, retval)
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return obj
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def validate_options(self):
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self.validate_is_list()
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self.validate_True_False_spelling()
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def validate_is_list(self):
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if not isinstance(self.conf.common_optics.optical_component, list):
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self.conf.common_optics.optical_component = [self.conf.common_optics.optical_component]
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if not isinstance(self.conf.instrument, list):
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self.conf.instrument = [self.conf.instrument]
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def validate_True_False_spelling(self):
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accepted_values = ['True', 'False']
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test_cases = [
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'noise/EnableJitter',
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'noise/EnableShotNoise',
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'noise/EnableReadoutNoise',
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]
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for item in test_cases:
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if hasattr(self.conf, item.split('/')[0]):
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if not self.conf.__getattribute__(item.split('/')[0]).__dict__[item.split('/')[1]]() in accepted_values:
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raise ValueError("Accepted values for [%s] are 'True' or 'False'" % item)
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def calc_metaoptions(self):
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self.calc_metaoption_wl_delta()
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def calc_metaoption_wl_delta(self):
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wl_delta = self.conf.common.wl_min() / self.conf.common.logbinres()
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setattr(self.conf.common, 'common_wl', (np.arange(self.conf.common.wl_min(),
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self.conf.common.wl_max(),
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wl_delta) * wl_delta.units).rescale(pq.um))
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if __name__ == "__main__":
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conf = Configuration()
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import esbo_etc
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import argparse
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import logging
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import sys
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import os
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def run_exosim(opt=None):
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pass
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# star, planet = exosim.modules.astroscene.run(opt)
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#
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# exosim_msg(' Stellar SED: {:s}\n'.format(os.path.basename(star.ph_filename)))
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# exosim_msg(' Star luminosity {:f}\n'.format(star.luminosity))
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#
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# # Instanciate Zodi
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# zodi = exosim.classes.zodiacal_light(opt.common.common_wl, level=1.0)
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#
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# exosim.exolib.sed_propagation(star.sed, zodi.transmission)
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# # Run Instrument Model
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# channel = exosim.modules.instrument.run(opt, star, planet, zodi)
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# # Create Signal timelines
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# frame_time, total_observing_time, exposure_time = exosim.modules.timeline_generator.run(opt, channel, planet)
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# # Generate noise timelines
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# exosim.modules.noise.run(opt, channel, frame_time, total_observing_time, exposure_time)
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# # Save
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# exosim.modules.output.run(opt, channel, planet)
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#
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# return star, planet, zodi, channel
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(prog="esbo_etc/esbo-etc.py", description='Exposure time calculator for ESBO-DS')
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parser.add_argument("-c", "--config", dest='config', default="esbo-etc_defaults.xml",
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metavar="config.xml", help="path to the configuration file")
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parser.add_argument("-d", "--debug", action="store_true", dest="debug", help="print debug information")
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parser.add_argument("-o", "--output-dir", dest="output_dir", help="path to the output directory",
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default="output")
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parser.add_argument("-v", "--version", action="version", version="ESBO-ETC version 1.0.0",
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help="show version information")
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args = parser.parse_args()
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logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.DEBUG if args.debug else logging.WARNING,
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stream=sys.stdout)
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conf = esbo_etc.Configuration(filename=args.config).conf
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# run_exosim(opt)
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from esbo_etc.lib.helpers import *
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