121 lines
2.7 KiB
Python
121 lines
2.7 KiB
Python
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#!/usr/bin/env python3
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import os
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import glob
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import argparse
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import isce # noqa
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import isceobj
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import subprocess
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import shelve
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def get_cli_args():
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"""
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Create command line parser.
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"""
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parser = argparse.ArgumentParser(description="Prepare UAVSAR HDF5 SLC Stack files.")
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parser.add_argument(
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"-i",
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"--input-dir",
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dest="input_dir",
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required=True,
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help="Input UAVSAR HDF5 file",
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)
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parser.add_argument(
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"-o",
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"--output",
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required=True,
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help="Output SLC directory",
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)
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parser.add_argument(
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"-p",
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"--polarization",
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dest="polarization",
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default="VV",
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help="SLC polarization (default=%(default)s ) ",
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)
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parser.add_argument(
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"-f",
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"--frequency",
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default="A",
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choices=("A", "B"),
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help="NISAR frequency choices (choices = %(choices)s , default=%(default)s )",
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)
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return parser.parse_args()
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def write_xml(shelveFile, slcFile):
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with shelve.open(shelveFile, flag="r") as db:
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frame = db["frame"]
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length = frame.numberOfLines
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width = frame.numberOfSamples
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print(width, length)
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slc = isceobj.createSlcImage()
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slc.setWidth(width)
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slc.setLength(length)
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slc.filename = slcFile
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slc.setAccessMode("write")
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slc.renderHdr()
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slc.renderVRT()
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def get_date(file):
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yyyymmdd = "20" + file.split("_")[4]
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return yyyymmdd
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def main():
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"""
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The main driver.
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"""
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inps = get_cli_args()
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outputDir = os.path.abspath(inps.output)
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#######################################
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slc_files = glob.glob(os.path.join(inps.input_dir, "*.h5"))
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for h5_file in slc_files:
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imgDate = get_date(h5_file)
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print(imgDate)
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print(h5_file)
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imgDir = os.path.join(outputDir, imgDate)
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os.makedirs(imgDir, exist_ok=True)
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cmd = (
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"unpackFrame_UAVSAR_HDF5_SLC.py -i "
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+ h5_file
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+ " -p "
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+ inps.polarization
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+ " -f "
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+ inps.frequency
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+ " -o "
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+ imgDir
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)
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print(cmd)
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subprocess.check_call(cmd, shell=True)
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slcFile = os.path.join(imgDir, imgDate + ".slc")
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# Now extract the correct pol SLC from the HDF5 file
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subdataset = "/science/LSAR/SLC/swaths"
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subdataset += "/frequency{}/{}".format(inps.frequency, inps.polarization)
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cmd = 'gdal_translate -of ISCE HDF5:"{fname}":"/{sds}" {out}'.format(
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fname=h5_file, sds=subdataset, out=slcFile
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)
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print(cmd)
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subprocess.check_call(cmd, shell=True)
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shelveFile = os.path.join(imgDir, "data")
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write_xml(shelveFile, slcFile)
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if __name__ == "__main__":
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main()
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