volumes.py 文件源码

def __init__(self, bounds, orig_resolution, tile_width, tile_height, tile_format_url,
                 zoom_level=0, missing_z=None, image_leaf_shape=None):
        self.orig_bounds = bounds
        self.orig_resolution = orig_resolution
        self.tile_width = tile_width
        self.tile_height = tile_height
        self.tile_format_url = tile_format_url

        self.zoom_level = int(zoom_level)
        if missing_z is None:
            missing_z = []
        self.missing_z = frozenset(missing_z)
        if image_leaf_shape is None:
            image_leaf_shape = [10, tile_height, tile_width]

        scale = np.exp2(np.array([0, self.zoom_level, self.zoom_level])).astype(np.int64)

        data_shape = (np.zeros(3), np.divide(bounds, scale).astype(np.int64))
        self.image_data = OctreeVolume(image_leaf_shape,
                                       data_shape,
                                       'float32',
                                       populator=self.image_populator)

        self.label_data = None