@param c the cluster to render. @param markersAdded a collection of markers to append any created markers. @param animateFrom the location

构造函数 @param baiduMap 该DrivingRouteOvelray引用的 BaiduMap

Creates a new IconGenerator with the default style. add myself

通过一个BaiduMap 对象构造 @param baiduMap

构造函数 @param baiduMap 该 PoiOverlay 引用的 BaiduMap 对象

Creates a new quad tree with specified bounds. @param minX @param maxX @param minY @param maxY

构造函数 @param baiduMap 该TransitRouteOverlay引用的 BaiduMap 对象

将所有Overlay 添加到地图上

@return u coordinate of the anchor, with rotation applied.

@return v coordinate of the anchor, with rotation applied.

Get the Cluster from a marker @param marker which you will obtain its Cluster @return a Cluster from a marker or null if it does not exists

Get the ClusterItem from a marker @param marker which you will obtain its ClusterItem @return a ClusterItem from a marker or null if it does not exis

cluster算法核心 @param zoom map的级别 @return

Gets a named collection that was created by {@link #newCollection(String)} @param id the unique id for this collection.

获取该 PoiOverlay 的 poi数据 @return

The position of this marker. This must always return the same value.