KBE3D / KBCore / Cesium / DiscardEmptyTileImagePolicy

类: 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.

属性

EMPTY_IMAGE

readonly static EMPTY_IMAGE: HTMLImageElement

Default value for representing an empty image.

方法

isReady()

isReady(): boolean

Determines if the discard policy is ready to process images.

返回

boolean

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

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shouldDiscardImage()

shouldDiscardImage(image: HTMLImageElement): boolean

Given a tile image, decide whether to discard that image.

参数

image

HTMLImageElement

An image to test.

返回

boolean

True if the image should be discarded; otherwise, false.

构造函数

构造函数

new DiscardEmptyTileImagePolicy(): DiscardEmptyTileImagePolicy

返回

DiscardEmptyTileImagePolicy