通过参考http://gishome.net.cn/cesium/cesium-coordinates/，整理修改后
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Use correct character set. -->
<meta charset="utf-8">
<!-- Tell IE to use the latest, best version. -->
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<!-- Make the application on mobile take up the full browser screen and disable user scaling. -->
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
<title>Hello World!</title>
<link rel="stylesheet" href="Bootstrap/css/bootstrap.css">
<script src="Bootstrap/js/jquery-1.11.3.min.js"></script>
<script src="../Build/Cesium/Cesium.js"></script>
<script src="Bootstrap/js/bootstrap.min.js"></script>
<style>
@import url(../Build/Cesium/Widgets/widgets.css);
html, body, #cesiumContainer {
100%; height: 100%; margin: 0; padding: 0; overflow: hidden;
}
#_coordinates{
position:absolute;
bottom:20px;
}
</style>
</head>
<body>
<div id="cesiumContainer"></div>
<button type="button" class="btn btn-info" id="moni" style="position:absolute;top:20px;" onclick="SetMode('drawPloy')">面积</button>
<button type="button" class="btn btn-info" style="position:absolute;top:20px;left: 95px;" onclick="SetMode('drawLine')">测量</button>
<button type="button" class="btn btn-info" style="position:absolute;top:20px;left: 185px;" onclick="clearDrawingBoard()">清除</button>
<script>
var viewer = new Cesium.Viewer("cesiumContainer", {
animation: false, //是否显示动画控件
baseLayerPicker: false, //是否显示图层选择控件
geocoder: true, //是否显示地名查找控件
timeline: false, //是否显示时间线控件
sceneModePicker: true, //是否显示投影方式控件
navigationHelpButton: false, //是否显示帮助信息控件
infoBox: true, //是否显示点击要素之后显示的信息
imageryProvider: new Cesium.WebMapTileServiceImageryProvider({
url: "http://t0.tianditu.com/img_w/wmts?service=wmts&request=GetTile&version=1.0.0&LAYER=img&tileMatrixSet=w&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}&style=default&format=tiles",
layer: "tdtBasicLayer",
style: "default",
format: "image/jpeg",
tileMatrixSetID: "GoogleMapsCompatible",
show: false
})
});
var scene = viewer.scene;
//地图底部工具栏显示地图坐标信息
var elementbottom = document.createElement("div");
$("#cesiumContainer").append(elementbottom);
elementbottom.className = "mapfootBottom";
var coordinatesDiv = document.getElementById("_coordinates");
if (coordinatesDiv) {
coordinatesDiv.style.display = "block";
}
else {
//var scale;
var _divID_coordinates = "_coordinates";
coordinatesDiv = document.createElement("div");
coordinatesDiv.id = _divID_coordinates;
coordinatesDiv.className = "map3D-coordinates";
coordinatesDiv.innerHTML = "<span id='cd_label' style='font-size:13px;text-align:center;font-family:微软雅黑;color:#edffff;'>暂无坐标信息</span>";
//document.getElementById(this.mapDivId).appendChild(coordinatesDiv);
$("#cesiumContainer").append(coordinatesDiv);
var handler3D = new Cesium.ScreenSpaceEventHandler(
viewer.scene.canvas);
handler3D.setInputAction(function(movement) {
var pick= new Cesium.Cartesian2(movement.endPosition.x,movement.endPosition.y);
if(pick){
var cartesian = viewer.scene.globe.pick(viewer.camera.getPickRay(pick), viewer.scene);
if(cartesian){
//世界坐标转地理坐标（弧度）
var cartographic = viewer.scene.globe.ellipsoid.cartesianToCartographic(cartesian);
if(cartographic){
//海拔
var height = viewer.scene.globe.getHeight(cartographic);
//视角海拔高度
var he = Math.sqrt(viewer.scene.camera.positionWC.x * viewer.scene.camera.positionWC.x + viewer.scene.camera.positionWC.y * viewer.scene.camera.positionWC.y + viewer.scene.camera.positionWC.z * viewer.scene.camera.positionWC.z);
var he2 = Math.sqrt(cartesian.x * cartesian.x + cartesian.y * cartesian.y + cartesian.z * cartesian.z);
//地理坐标（弧度）转经纬度坐标
var point=[ cartographic.longitude / Math.PI * 180, cartographic.latitude / Math.PI * 180];
if(!height){
height = 0;
}
if(!he){
he = 0;
}
if(!he2){
he2 = 0;
}
if(!point){
point = [0,0];
}
coordinatesDiv.innerHTML = "<span id='cd_label' style='font-size:13px;text-align:center;font-family:微软雅黑;color:#edffff;'>"+"视角海拔高度:"+(he - he2).toFixed(2)+"米"+" 海拔:"+height.toFixed(2)+"米"+" 经度：" + point[0].toFixed(6) + " 纬度：" + point[1].toFixed(6)+ "</span>";
}
}
}
}, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
}
</script>
</body>
</html>
