utils.py 文件源码

def scale_to_mask(im_id: str, im_size: Tuple[int, int], poly: MultiPolygon)\
        -> MultiPolygon:
    x_scaler, y_scaler = get_scalers(im_id, im_size)
    return shapely.affinity.scale(
        poly, xfact=x_scaler, yfact=y_scaler, origin=(0, 0, 0))