    //显示导航控件（罗盘、比例尺、场景导航）
            webGlobe.createNavigationTool({
                enableCompass: true,
                enableZoomControls: true,
                enableDistanceLegend: true
            });

            var viewer = webGlobe.viewer;
            var scene = webGlobe.scene;
            //避免穿透地形
            var controller = scene.screenSpaceCameraController;
            controller.minimumZoomDistance = 3000;
            scene.camera.enableTerr