图层插队

/*
* 图层插队
* 参数1：要插队的图层layer
* 参数2：插队在谁之后图层的id
* 用法：that.StaticMap.LayerJump(layer,'id')
* */
function LayerJump(layer,fatherid) {
  var that=this;
 
  that.NewMap.getLayers().forEach(function (lyr,index) {

    if (lyr.get('id')==fatherid) {
      
      var layersArray = that.NewMap.getLayers();
      layersArray.insertAt(index-1,layer);
    }
  });
}