uf_creator.py 文件源码

def split_metatiles(output_dir, metatiles):

    # Determine metatile size and bit depth.
    mt_ds = gdal.Open(metatiles[0])
    assert mt_ds.RasterXSize % UF_TILE_SIZE == 0
    assert mt_ds.RasterYSize % UF_TILE_SIZE == 0

    x_uf_count = mt_ds.RasterXSize / UF_TILE_SIZE
    y_uf_count = mt_ds.RasterYSize / UF_TILE_SIZE

    for ytile in range(y_uf_count):
        print 'Process Row: ', ytile
        split_row_of_unit_fields(output_dir, metatiles, ytile)

    logging.info('Wrote %d piles to directory %s.',
                 x_uf_count * y_uf_count, output_dir)