您好,其实您可以直接使用drawFeature的方法直接在Vector图层上添加图标
http://support.supermap.com.cn:8090/iserver/iClient/forJavaScript/apidoc/files/SuperMap/Control/DrawFeature-js.html#SuperMap.Control.DrawFeature.SuperMap.Control.DrawFeature
这里有一个demo供您参考:
http://support.supermap.com.cn:8090/iserver/iClient/forJavaScript/examples/examples.html#drawGeometry