mask_to_polygons#
- mask_to_polygons(mask: ndarray, transform: Optional[Affine] = None) Iterator[BaseGeometry] [source]#
Polygonize a raster mask. Wrapper around rasterio.features.shapes.
- Parameters
mask (np.ndarray) – The mask containing buildings to polygonize.
transform (Optional[rio.Affine]) – Affine transform to use during polygonization. Defaults to None (i.e. identity transform).
- Returns
Generator of shapely polygons.
- Return type
Iterator[BaseGeometry]