gps_coord_trans.py 文件源码

def cmdLineParse():
    parser = argparse.ArgumentParser(description='Transforming GPS coordinates into radar coordinates.',\
                                     formatter_class=argparse.RawTextHelpFormatter,\
                                     epilog=INTRODUCTION+'\n'+EXAMPLE)

    parser.add_argument('gps_txt',help='Available GPS station information.')
    parser.add_argument('-l', dest='lt', help='lookup table of coordinates transfomration.')
    parser.add_argument('-p', dest='dem_par', help='Parameter file of lookup table.')
    parser.add_argument('-o', dest='out', help='Output file name of the generated GPS coordinates text.')

    inps = parser.parse_args()

    if not inps.lt:
        parser.print_usage()
        sys.exit(os.path.basename(sys.argv[0])+': error: lookup table should be provided.')

    if not inps.dem_par:
        parser.print_usage()
        sys.exit(os.path.basename(sys.argv[0])+': error: dem_par file should be provided.')

    return inps

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