TileDiscardPolicy

new Cesium.TileDiscardPolicy()

A policy for discarding tile images according to some criteria. This type describes an interface and is not intended to be instantiated directly.
参考:

方法

Determines if the discard policy is ready to process images.
返回值:
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.
参数名称 类型 描述信息
image HTMLImageElement An image to test.
返回值:
True if the image should be discarded; otherwise, false.