Get pixel data
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@@ -27,6 +27,25 @@ class ImageLayer extends BaseImageLayer {
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createRenderer() {
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return new CanvasImageLayerRenderer(this);
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}
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/**
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* Get data for a pixel location. A four element RGBA array will be returned. For requests outside the
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* layer extent, `null` will be returned. Data for an image can only be retrieved if the
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* source's `crossOrigin` property is set.
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*
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* ```js
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* // display layer data on every pointer move
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* map.on('pointermove', (event) => {
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* console.log(layer.getData(event.pixel));
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* });
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* ```
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* @param {import("../pixel").Pixel} pixel Pixel.
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* @return {Uint8ClampedArray|Uint8Array|Float32Array|DataView|null} Pixel data.
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* @api
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*/
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getData(pixel) {
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return super.getData(pixel);
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}
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}
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export default ImageLayer;
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