Mapbox GL js,通过变量图标有效地表示geojson源

我有一个由geojson点列表组成的mapbox源代码,该源代码的每个元素都有一个键 偶像 引用图标URL:

var featureCollection = {
    "type": "FeatureCollection",
    "features": [
        {
            "geometry":{
                "type": "Point",
                "coordinates": [1,1]
            },
            "properties": {
                "id": 1,
                "name": "name1",
                "address": "address1",
                "icon": "icon1"
            }
        },
        {
            "geometry":{
                "type": "Point",
                "coordinates": [2,2]
            },
            "properties": {
                "id": 2,
                "name": "name2",
                "address": "address2",
                "icon": "icon2"
            }
        },
        {
            "geometry":{
                "type": "Point",
                "coordinates": [3,3]
            },
            "properties": {
                "id": 3,
                "name": "name3",
                "address": "address3",
                "icon": "icon3"
            }
        },
        {
            "geometry":{
                "type": "Point",
                "coordinates": [4,4]
            },
            "properties": {
                "id": 4,
                "name": "name4",
                "address": "address4",
                "icon": "icon1"
            }
        }
    ]
}

map.addSource("shops", {
    type: "geojson",
    data: featureCollection,
    cluster: true,
    clusterMaxZoom: 14,
    clusterRadius: 50
});

我想通过它们的 偶像 变量,一种方法是添加尽可能多的层,因为我有不同的图标:

map.addLayer({
    id: currentLayer,
    type: "symbol",
    source: "featureCollection",
    filter: ["!has", "point_count"],
    "layout": {
        "icon-image": currentIcon,
        "icon-size":1.5
    }
});

问题是我有200多个不同的图标(800个观察结果中),我真的怀疑创建200个不同的图层是绘制我的观察结果的最有效的方法。尤其是当我在用户单击某个层时触发一个函数时,因此我还必须多次定义这样的函数,因为我有不同的图标。