55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
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#!/usr/bin/env python3
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import os
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import shelve
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import isce
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import argparse
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import datetime
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def cmdLineParse():
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'''
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Command line parser.
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'''
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parser = argparse.ArgumentParser(description='Fix master metadata')
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parser.add_argument('-m', '--master', dest='master', type=str, required=True,
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help='Directory with master SLC')
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parser.add_argument('-o', '--offset', dest='offset', type=str, required=True,
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help='Pickle with offsets')
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return parser.parse_args()
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if __name__ == '__main__':
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'''
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Main driver.
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'''
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inps = cmdLineParse()
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mdb = shelve.open( os.path.join(inps.master, 'data'), writeback=True)
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odb = shelve.open( inps.offset, flag='r')
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field = odb['cull_field']
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aa, rr = field.getFitPolynomials(azimuthOrder=0, rangeOrder=0, usenumpy=True)
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meanaz = aa._coeffs[0][0]
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meanrg = rr._coeffs[0][0]
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frame = mdb['frame']
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r0 = frame.getStartingRange()
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dr = frame.getInstrument().getRangePixelSize()
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frame.setStartingRange( r0 + meanrg* dr)
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prf = frame.getInstrument().getPulseRepetitionFrequency()
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delta = datetime.timedelta(seconds = meanaz / prf)
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print('Range: ', meanrg*dr)
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print('Azimuth: ', delta)
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frame.setSensingStart( frame.getSensingStart() + delta)
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frame.setSensingMid( frame.getSensingMid() + delta)
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frame.setSensingStop( frame.getSensingStop() + delta)
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odb.close()
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mdb.close()
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