new Cesium.NeverTileDiscardPolicy()

A TileDiscardPolicy specifying that tile images should never be discard.
See:

Methods

isReady() → boolean

确定丢弃策略是否准备好处理图像 .
Returns:
如果丢弃策略准备处理图像, 则属真; 否则, 是假的 .

shouldDiscardImage(image) → boolean

鉴于一个瓦片图像,决定是否丢弃该图像.
Name Type Description
image HTMLImageElement 要测试的图像 .
Returns:
如果图像应该被丢弃, 是真的; 否则, 是假的 .
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