A policy for discarding tile images according to some criteria. This type describes an interface and is not intended to be instantiated directly.
Determines if the discard policy is ready to process images.
Returns:True if the discard policy is ready to process images; otherwise, false.
Given a tile image, decide whether to discard that image.
Name Type Description
Image An image to test.
Returns:True if the image should be discarded; otherwise, false.