35 lines
1.9 KiB
Python
35 lines
1.9 KiB
Python
import esbo_etc as etc
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import argparse
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import logging
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import sys
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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("-l", "--logging", dest="logging", default="WARNING", 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_known_args() # fix for PyCharm python console
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logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.WARNING if args.logging is None else getattr(
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logging, args.logging.upper()), stream=sys.stdout)
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conf = etc.Configuration(args.config).conf
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oc_factory = etc.classes.RadiantFactory(conf.common.wl_bins())
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parent = oc_factory.fromConfigBatch(conf)
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sensor_factory = etc.SensorFactory(parent, conf.common)
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imager = sensor_factory.create(conf.instrument.sensor)
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if hasattr(conf.common, "exposure_time") and hasattr(conf.common, "snr"):
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sensitivity = imager.getSensitivity(conf.common.exposure_time(), conf.common.snr(), conf.astroscene.target.mag)
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print("The limiting apparent magnitude is: %.2f mag." % sensitivity.value)
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elif hasattr(conf.common, "exposure_time"):
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snr = imager.getSNR(conf.common.exposure_time())
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print("The SNR is: %.2f." % snr.value)
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elif hasattr(conf.common, "snr"):
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exp_time = imager.getExpTime(conf.common.snr())
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print("The necessary exposure time is: %.2f s." % exp_time.value)
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