try{
            //添加S3M图层服务
            var promise = scene.open(URL_CONFIG.SCENE_JINJIANG);
            Cesium.when(promise,function(layers){
                //设置相机视角(这里改如何改动)
                scene.camera.setView({
                    destination : new Cesium.Cartesian3.fromDegrees(118.5486,24.8027,80),
                    orientation : {
                       heading : 5.295661577745349,
                       pitch : -0.18831704619320822,
                       roll : 0
                   }
                });
            },function(e){
                if (widget._showRenderLoopErrors) {
                    var title = '渲染时发生错误,已停止渲染。';
                    widget.showErrorPanel(title, undefined, e);
                }
            }).then(function(){
                //加载kml文件
                viewer.dataSources.add(Cesium.KmlDataSource.load('./SampleData/kml/model.kml',{
                    camera : scene.camera,
                    canvas : scene.canvas
                })).then(function(kmlDatasource){
                    var entity = kmlDatasource.entities.values[0];
                    if(entity.path){
                        entity.path.show = false;
                    }
                });
            });
        }