Cesium直角坐标系转换：

Var cartesian = new Cesium.Cartesian3(x,y,z);
Var cartographic = ellipsoid.cartesianToCartographic(cartesian);
Var log = Cesium.Math.toDegrees(cartographic.longitude);
Var lat =Cesium.Math.toDegrees(cartographic.latitude);
Var height = cartographic.height;

Cesium鼠标单击获取经纬度

Var handler = new Cesium.ScreenSpaceEventHandler(canvas);
Handler.setInputAction(function(movement){
	Var cartesian = viewer.camera.pickEllipsoid(movement.position,ellipsoid);
	If(cartesian ){
		Var cartographic = viewer.scene.globe.ellipsoid.cartesianToCartographic(cartesian);
		Var iLat = Cesium.Math.toDegrees(cartographic.latitude).toFixed(4);
		Var iLog = Cesium.Math.toDegrees(cartograohic.longitude).toFixed(4);
	}
},Cesium.ScreenSpaceEventType.Left_CLICK)；

Cesium获取层级关系

Function getZoom(){
	Var tilesToRender = viewer.scene.globe._surface._tilesToRender;
	If(tilesToRender.length>0){
		Var level = tilesToRender[0].level;
		return level;
	}
	Return false
}

Cesium鼠标事件：

创建viewer：

var viewer = new Cesium.Viewer('cesiumContainer');

鼠标事件：

var handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);

1.滚轮事件

handler.setInputAction(function(wheelment){
    console.log('滚轮事件：',wheelment);     
},Cesium.ScreenSpaceEventType.WHEEL);

2.左键双击事件：

handler.setInputAction(function(click){
    console.log('左键双击事件：',click.position);     
},Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);

3.左键按下事件：

handler.setInputAction(function(click){
    console.log('左键按下事件：',click.position);     
},Cesium.ScreenSpaceEventType.LEFT_DOWN);

4.左键弹起事件

handler.setInputAction(function(click){
    console.log('左键弹起事件：',click.position);     
},Cesium.ScreenSpaceEventType.LEFT_UP);

5.中键单击事件

handler.setInputAction(function(click){
      console.log('中键单击事​​件：',click.position);     
 },Cesium.ScreenSpaceEventType.MIDDLE_CLICK);

6.移动事件:

handler.setInputAction(function(movement){
    console.log('移动事件：',movement.endPosition);     
},Cesium.ScreenSpaceEventType.MOUSE_MOVE);

7.删除事件

handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);