cartopy.io.PostprocessedRasterSource

class cartopy.io.PostprocessedRasterSource(contained_source, img_post_process)

A RasterSource which wraps another, an then applies a post-processing step on the raster fetched from the contained source.

__init__(contained_source, img_post_process)

Parameters:

• contained_source (RasterSource instance.) – The source of the raster that this container is wrapping.

• img_post_process (callable) – Called after each fetch_raster call which yields a non-None image result. The callable must accept the LocatedImage from the contained fetch_raster as its only argument, and must return a single LocatedImage.

Methods

__init__(contained_source, img_post_process)	param contained_source: The source of the raster that this container is wrapping.
fetch_raster(*args, **kwargs)	Return a sequence of images with extents given some constraining information.
validate_projection(projection)	Raise an error if this raster source cannot provide images in the specified projection.