/
TileDiscardPolicy.js
34 lines (31 loc) · 1 KB
/
TileDiscardPolicy.js
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import DeveloperError from "../Core/DeveloperError.js";
/**
* A policy for discarding tile images according to some criteria. This type describes an
* interface and is not intended to be instantiated directly.
*
* @alias TileDiscardPolicy
* @constructor
*
* @see DiscardMissingTileImagePolicy
* @see NeverTileDiscardPolicy
*/
function TileDiscardPolicy(options) {
DeveloperError.throwInstantiationError();
}
/**
* Determines if the discard policy is ready to process images.
* @function
*
* @returns {Boolean} True if the discard policy is ready to process images; otherwise, false.
*/
TileDiscardPolicy.prototype.isReady = DeveloperError.throwInstantiationError;
/**
* Given a tile image, decide whether to discard that image.
* @function
*
* @param {HTMLImageElement} image An image to test.
* @returns {Boolean} True if the image should be discarded; otherwise, false.
*/
TileDiscardPolicy.prototype.shouldDiscardImage =
DeveloperError.throwInstantiationError;
export default TileDiscardPolicy;