OpenLayers.Control.SelectFeature

在OpenLayers中，控件SelectFeature主要用于操作(鼠标移入、移出、单击、双击)矢量图层(OpenLayers.Layer.Vector)的要素。那么它是如何实现的呢，还是让我们看代码吧。

首先我们还是先把所有要用到类实例化出来，参考代码：

View Code

var callbacks = {
over:function(currentFeature){},
out:function(currentFeature){},
click:function(currentFeature){},
dblclick:function(currentFeature){}
};
var sf = new OpenLayers.Control.SelectFeature(vectorLayer,{
onSelect:function(currentFeature){},
});
map.addControl(sf);