rlayers/dist/layer/RLayerHeatmap.js

React Components for OpenLayers

import { Heatmap as LayerHeatmap } from 'ol/layer';
import { Vector as SourceVector } from 'ol/source';
import { default as RLayerBaseVector } from './RLayerBaseVector';
/** A vector layer that renders its RFeatures as a heatmap
 *
 * Compatible with RLayerVector
 *
 * Requires an `RMap` context
 *
 * Provides a vector layer for JSX-declared RFeatures
 */
export default class RLayerHeatmap extends RLayerBaseVector {
    createSource(props) {
        this.source = new SourceVector({
            features: this.props.features,
            url: this.props.url,
            format: this.props.format,
            loader: this.props.loader,
            wrapX: this.props.wrapX,
            strategy: this.props.strategy
        });
        this.ol = new LayerHeatmap(Object.assign(Object.assign({}, props), { source: this.source }));
        return [this.ol, this.source];
    }
    refresh(prev) {
        super.refresh(prev);
        if ((prev === null || prev === void 0 ? void 0 : prev.blur) !== this.props.blur)
            this.ol.setBlur(this.props.blur);
        if ((prev === null || prev === void 0 ? void 0 : prev.radius) !== this.props.radius)
            this.ol.setRadius(this.props.radius);
    }
}
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