volumes.py 文件源码

def get_subvolume(self, bounds):
        if bounds.start is None or bounds.stop is None:
            image_subvol = self.image_data
            label_subvol = self.label_data
        else:
            image_subvol = self.image_data[
                    bounds.start[0]:bounds.stop[0],
                    bounds.start[1]:bounds.stop[1],
                    bounds.start[2]:bounds.stop[2]]
            label_subvol = None

        if np.issubdtype(image_subvol.dtype, np.integer):
            raise ValueError('Sparse volume access does not support image data coercion.')

        seed = bounds.seed
        if seed is None:
            seed = np.array(image_subvol.shape, dtype=np.int64) // 2

        return Subvolume(image_subvol, label_subvol, seed, bounds.label_id)