/**
 * 全局变量_Tool工具
 */
var gisToolsRoam_entity;

//点击设备：图标/模型，三维模型触发的点击事件
var PutInVideo_RightHandler3D = new _Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
PutInVideo_RightHandler3D.setInputAction(function(movement) {
    var pick = viewer.scene.pick(movement.position);
    //获取模型坐标位置
    var position = viewer.scene.pickPosition(movement.position);
    //将笛卡尔坐标转化为经纬度坐标
    var cartographic = _Cesium.Cartographic.fromCartesian(position);
    var longitude = _Cesium.Math.toDegrees(cartographic.longitude);
    var latitude = _Cesium.Math.toDegrees(cartographic.latitude);
    var height = cartographic.height;
    if (height < 0) {
        height = 0;
    }
    if(pick && pick.id){
    	if(pick.id._name == "camera"){
        	DrawVideoPlace(longitude,latitude,height);
    	}
    }else{
    	console.log("当前选中的是模型");
    }
}, _Cesium.ScreenSpaceEventType.RIGHT_CLICK);

//点击设备：图标/模型，三维模型触发的点击事件
var GetPoint = function (){
	var handler3D = new _Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
	handler3D.setInputAction(function(movement) {
	    var pick = viewer.scene.pick(movement.position);
	    //获取模型坐标位置
	    var position = viewer.scene.pickPosition(movement.position);
	    //将笛卡尔坐标转化为经纬度坐标
	    var cartographic = _Cesium.Cartographic.fromCartesian(position);
	    var longitude = _Cesium.Math.toDegrees(cartographic.longitude);
	    var latitude = _Cesium.Math.toDegrees(cartographic.latitude);
	    var height = cartographic.height;
	    if (height < 0) {
	        height = 0;
	    }
	    console.log(longitude+","+latitude+","+height);
	}, _Cesium.ScreenSpaceEventType.LEFT_CLICK);
}

//获取当前相机位置
var GetCameraPoint = function (){
	var camera = viewer.camera;
	console.log(camera);
	
	var cartographic=viewer.scene.globe.ellipsoid.cartesianToCartographic(camera.position);
	var lng=_Cesium.Math.toDegrees(cartographic.longitude);
	var lat=_Cesium.Math.toDegrees(cartographic.latitude);
	var alt=cartographic.height;
	console.log(lng+","+lat+","+alt);//输出x,y,z（经纬度）
	
	var heading = _Cesium.Math.toDegrees(camera.heading);
	var pitch = _Cesium.Math.toDegrees(camera.pitch);
	var roll = _Cesium.Math.toDegrees(camera.roll);
	console.log(heading+","+pitch+","+roll);//输出方向（度数）
	
	var rectangle = viewer.camera.computeViewRectangle();
	var west =rectangle.west / Math.PI * 180;
	var north = rectangle.north / Math.PI * 180;
	var east = rectangle.east / Math.PI * 180;
	var south = rectangle.south / Math.PI * 180;
	console.log(west+","+north+","+east+","+south);//输出相机所看到的区域坐标（经纬度）
}

/**
 * flyTo:飞行定位公用方法
 * x:经度(WGS84)
 * y:纬度(WGS84)
 * z:高程(WGS84)
 * h:水平旋转偏航角(°)
 * p:垂直旋转俯仰角(°)
 * r:左右旋转翻滚角(°)
 * d:飞行时间(mm)
 */
var flyTo = function (x,y,z,h,p,r,d){
	viewer.camera.flyTo({
		destination: _Cesium.Cartesian3.fromDegrees(x,y,z),
		orientation: {
			heading: _Cesium.Math.toRadians(h),
		    pitch: _Cesium.Math.toRadians(p),
		    roll: r
		},
		duration: d//动画持续时间
	});
}

/**
 * setView:瞬间定位公用方法(没有飞行动画效果)
 * x:经度(WGS84)
 * y:纬度(WGS84)
 * z:高程(WGS84)
 * h:水平旋转偏航角(°)
 * p:垂直旋转俯仰角(°)
 * r:左右旋转翻滚角(°)
 */
var setView = function (x,y,z,h,p,r){
	viewer.camera.setView({
	  destination: _Cesium.Cartesian3.fromDegrees(x,y,z),
	  orientation: {
	      heading: _Cesium.Math.toRadians(h),
	      pitch: _Cesium.Math.toRadians(p),
	      roll: r
	  }
	});
}


function GetRoamStart(){
    gisToolsRoam_entity = viewer.entities.add({
        availability : new _Cesium.TimeIntervalCollection([new _Cesium.TimeInterval({
            start : roam_start,
            stop : roam_stop
        })]),
        position : roam_position,
        orientation : new _Cesium.VelocityOrientationProperty(roam_position),
        model : {
            uri : ctx+'/js/gis/data/XFC.gltf',
            distanceDisplayCondition : 0
        }
    });
    viewer.trackedEntity = gisToolsRoam_entity;

    viewer.clock.startTime = roam_start.clone();
    viewer.clock.stopTime = roam_stop.clone();
    viewer.clock.currentTime = roam_start.clone();
    viewer.clock.clockRange = _Cesium.ClockRange.LOOP_STOP; //Loop at the end
    viewer.clock.multiplier = 1;
}
function GetRoamStop(){
    viewer.entities.remove(gisToolsRoam_entity);
}