import * as Cesium from "cesium"; export default class FeaturePrimitive extends Cesium.Primitive { properties = new Cesium.PropertyBag() constructor(options, properties) { super(options); if(properties && properties instanceof Object) { for (const key in properties) { if (Object.prototype.hasOwnProperty.call(properties, key)) { properties.addProperty(key, properties[key]); } } } } }