通过查询二维点数据集,得到坐标,加了一些entity,现在怎么点击点的图片能够拿到属性,我试了几何查询,点的时候查出来都是0
entity = new Cesium.Entity({
    id: "marker" + name.parent.id+i,
    position : Cesium.Cartesian3.fromDegrees(lng, lat),
    billboard :{
        image : require('../assets/img/ddd.png'),
        width: 24,
        height: 27,
        heightReference:Cesium.HeightReference.CLAMP_TO_GROUND,
        horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
        verticalOrigin: Cesium.VerticalOrigin.BOTTOM
    }
})