触发该事件时,能否得到feature是属于哪个图层的?
//注册鼠标点击事件
viewer.pickEvent.addEventListener(function(feature){
var title = Cesium.defaultValue(feature.NAME,'');
var description = Cesium.defaultValue(feature.DES,'');
title.innerText = title;
des.innerText = description;
myimg.src = "./images/" + title + ".jpg";
});