rasterinlay.helpers

block_contours(raster_shape: tuple, blocks: Iterable[tuple], bordervalue: numpy.uint8 = 255)[source]

Create 2D numpy.ndarray in the shape of ‘raster’ with contours.

Parameters
  • raster_shape – Height and width (in number of pixles) of the raster

  • blocks – Collection of block slices for which contours should be made

Returns

2D numpy.ndarray in the shape of raster_shape with all zeros except for the contours of the provided blocks.

Return type

numpy.ndarray