Google Maps Api v3，自定义集群图标

Question

如何更改集群图标？我希望有相同的图标，但有蓝色以外的其他颜色。

Answer 1

初始化 MarkerClusterer 对象时需要使用 styles 参数 - 下面的代码显示默认样式，因此如果您想为其中一个图标重新着色，只需更改图像的相关 url...

//set style options for marker clusters (these are the default styles)
mcOptions = {styles: [{
height: 53,
url: "http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/images/m1.png",
width: 53
},
{
height: 56,
url: "https://github.com/googlemaps/js-marker-clusterer/tree/gh-pages/images/m2.png",
width: 56
},
{
height: 66,
url: "https://github.com/googlemaps/js-marker-clusterer/tree/gh-pages/images/m3.png",
width: 66
},
{
height: 78,
url: "https://github.com/googlemaps/js-marker-clusterer/tree/gh-pages/images/m4.png",
width: 78
},
{
height: 90,
url: "https://github.com/googlemaps/js-marker-clusterer/tree/gh-pages/images/m5.png",
width: 90
}]}

//init clusterer with your options
var mc = new MarkerClusterer(map, markers, mcOptions);

Answer 2

Google 更改了他的存储库。最新的集群存储库是：https://github.com/googlemaps/js-marker-clusterer 图片：https://github.com/googlemaps/js-marker-clusterer/tree/gh-pages/images

您也可以考虑下载源代码并从本地路径提供链接。这样您将可以更好地控制应用程序所需的资源。

local_path "/pucblic/"
mcOptions = {styles: [{
height: 53,
url: local_path+"m1.png",
width: 53
},
{
height: 56,
url: local_path+"m2.png",
width: 56
},
{
height: 66,
url: local_path+"m3.png",
width: 66
},
{
height: 78,
url: local_path+"m4.png",
width: 78
},
{
height: 90,
url:  local_path+"m5.png",
width: 90
}]}

Answer 3

快捷方式覆盖图像路径，如下所示：

MarkerClusterer.prototype.MARKER_CLUSTER_IMAGE_PATH_ = 
    "https://raw.githubusercontent.com/googlemaps/v3-utility-library/master/markerclustererplus/images/m";

Answer 4

这是原图

markerClusterOptions = {styles: [{
    height: 53,
    url: "https://developers.google.com/maps/documentation/javascript/examples/markerclusterer/m1.png",
    width: 53
    },
    {
    height: 56,
    url: "https://developers.google.com/maps/documentation/javascript/examples/markerclusterer/m2.png",
    width: 56
    },
    {
    height: 66,
    url: "https://developers.google.com/maps/documentation/javascript/examples/markerclusterer/m3.png",
    width: 66
    },
    {
    height: 78,
    url: "https://developers.google.com/maps/documentation/javascript/examples/markerclusterer/m4.png",
    width: 78
    },
    {
    height: 90,
    url: "https://developers.google.com/maps/documentation/javascript/examples/markerclusterer/m5.png,
    width: 90
    }]}
    markerCluster = new MarkerClusterer(map, markers,markerClusterOptions);

Answer 5

这是为集群创建自定义图标的代码

const algorithm = new SuperClusterAlgorithm({
        maxZoom: this.maxZoom,
        radius: 150,
        minZoom: 0,
        zoomOnClick:false
      });
const renderer = {
        render: function ({ count, position }) {
            return new google.maps.Marker({
                label: {text: count.toString(), color: 'white', fontSize: '12px'},
                position,
                icon: 'icon1.png',
                title: 'Zoom in to view resources in this area',
                // adjust zIndex to be above other markers
                zIndex: Number(google.maps.Marker.MAX_ZINDEX) + count,
            });
        }
    };
     
      this.markerCluster = new MarkerClusterer({
        map: this.map,
        markers: this.markers,
        algorithm: algorithm,
        renderer:renderer
      });