DiscardEmptyTileImagePolicy

new Cesium.DiscardEmptyTileImagePolicy()

A policy for discarding tile images that contain no data (and so aren't actually images). This policy discards DiscardEmptyTileImagePolicy.EMPTY_IMAGE, which is expected to be used in place of any empty tile images by the image loading code.
See:

Members

static readonly Cesium.DiscardEmptyTileImagePolicy.EMPTY_IMAGE : HTMLImageElement

Default value for representing an empty image.

Methods

Determines if the discard policy is ready to process images.
Returns:
True if the discard policy is ready to process images; otherwise, false.

shouldDiscardImage(image)Boolean

Given a tile image, decide whether to discard that image.
Name Type Description
image HTMLImageElement An image to test.
Returns:
True if the image should be discarded; otherwise, false.