cesium熱力圖（cesiumheatmap.js）

npm i cesium-heatmap https://blog.csdn.net/liuxin00020/article/details/80844770 var viewer = new Cesium.Viewer(「viewer」); // 矩形座標 var bounds = { west: -109.0, south: 30.0, east: -80.0, north: 50.0 };

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