document.write('<script src="../js/tag_service.js"></script>');
/**
 * 定位标签管理
 */
//显示列表
var tagCollection = [];
function showTags(data){
	var content = '';
	for (var i = 0; i < data.length; i++) {
		var poiArr = data[i].tagLabelPoi.split(',');
		var point = Cesium.Cartesian3.fromDegrees(Number(poiArr[0]),Number(poiArr[1]),Number(poiArr[2])+10);
		var textlength = data[i].tagName.length;
		var imgurl = '';
		if(textlength<5){
			imgurl = '../images/pinimg/33S.png';
		}else if(4<textlength&&textlength<9){
			imgurl = '../images/pinimg/33M.png';
		}else{
			imgurl = '../images/pinimg/33L.png';
		}
		tagCollection.push(viewer.entities.add({
			position : point,
			billboard : {
				image : imgurl,
				verticalOrigin : Cesium.VerticalOrigin.BOTTOM,
				horizontalOrigin : Cesium.HorizontalOrigin.CENTER,
				scaleByDistance : new Cesium.NearFarScalar(2000, 1, 4000000, 0.5),
	            pixelOffsetScaleByDistance : new Cesium.NearFarScalar(2000, 1, 4000000, 0.5),
			},label : {
				verticalOrigin : Cesium.VerticalOrigin.BOTTOM,
				horizontalOrigin : Cesium.HorizontalOrigin.CENTER,
				text : data[i].tagName,
				font : 'bold 16px Helvetica',
				fillColor : Cesium.Color.WHITE,
				disableDepthTestDistance : 100000000,
				pixelOffset : new Cesium.Cartesian2(10, -35.0),
				scaleByDistance : new Cesium.NearFarScalar(2000, 1, 4000000, 0.5),
	            pixelOffsetScaleByDistance : new Cesium.NearFarScalar(2000, 1, 4000000, 0.5),
			}
	    }));
		var campoiArr = data[i].tagPoi.split(',');
		content += '<div class="row ';
		(i % 2 == 0) ? content += 'sr-row-up' : content += 'sr-row-up-black';
		content += '"><div class="col-md-2 mycol"><i onclick="moveToDegrees('
				+ campoiArr[0]+','+campoiArr[1]+','+campoiArr[2]+','+data[i].tagHeading+','+data[i].tagPitch
				+ ')" class="fa fa-map-marker myfa"></i></div><label class="col-md-9 mycol" onclick="moveToDegrees('
				+ campoiArr[0]+','+campoiArr[1]+','+campoiArr[2]+','+data[i].tagHeading+','+data[i].tagPitch+')">'
				+ data[i].tagName + '</label><div class="col-md-1 mycol">'
				+ '<i onclick="deleteTagById(\''+data[i].tagId+'\')" class="fa fa-remove myfa"></i></div></div>';
	}
	$('#taglayer').html(content);
}
//清除标签
function clearTags(){
	for (var i = 0; i < tagCollection.length; i++) {
		viewer.entities.remove(tagCollection[i]);
	}
	tagCollection.length = 0;
}
//并获取当前视角
function addTag(viewertag){
	var camPoi, camHeading, camPitch, poiStr;
	var addTagHandler = new Cesium.ScreenSpaceEventHandler(viewertag.scene.canvas);
	addTagHandler.setInputAction(function(movement) {
	    var cartesian = viewertag.scene.pickPosition(movement.position);  
	    if (Cesium.defined(cartesian)) { 
	        var cartographic = Cesium.Cartographic.fromCartesian(cartesian);
	        var testheight = cartographic.height;
	        if(Number(testheight)<0){
	        	var ray = viewertag.camera.getPickRay(movement.position);
			    cartesian = viewertag.scene.globe.pick(ray,viewertag.scene);
	        }
	        cartographic = Cesium.Cartographic.fromCartesian(cartesian);
	        var lng = Cesium.Math.toDegrees(cartographic.longitude);
	        var lat = Cesium.Math.toDegrees(cartographic.latitude);
	        var height = cartographic.height;//模型高度  
	        poiStr = lng+','+lat+','+height;
	        
	        var camPoiR = viewertag.camera.position;
	        var camCartographic = Cesium.Cartographic.fromCartesian(camPoiR);
	        var camlng = Cesium.Math.toDegrees(camCartographic.longitude);
	        var camlat = Cesium.Math.toDegrees(camCartographic.latitude);
	        var camheight = camCartographic.height;//模型高度  
	        camPoi = camlng+","+camlat+","+camheight;
	        camHeading = viewertag.camera.heading;
	        camPitch = viewertag.camera.pitch;
	    }
		//创建标注
	    var pinBuilder = new Cesium.PinBuilder();
	    var addPin = viewertag.entities.getById("addTagPinId");
	    if(addPin == undefined){
	    	viewertag.entities.add({
	    		id :"addTagPinId",
	    		position :cartesian.clone(),
		        billboard : {
		            image : pinBuilder.fromText('新',Cesium.Color.BLUE,36).toDataURL(),
		            verticalOrigin : Cesium.VerticalOrigin.BOTTOM
		        },
		    });
	    }else{
	    	addPin.position = cartesian.clone();
	    }
	}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
	addTagHandler.setInputAction(function(movement) {
		if($('#tagName').val().length!=0){
			if(camPoi!=undefined){
				addTagHandler = addTagHandler && addTagHandler.destroy();
				var obj = {
					'tagId':'0',
					'tagPoi':camPoi,
					'tagHeading':camHeading.toString(),
					'tagPitch':camPitch.toString(),
					'tagName':$('#tagName').val(),
					'tagLabelPoi':poiStr,
				};
				insertTag(obj);
				viewertag.entities.removeById("addTagPinId");
				isaddtag = true;
			}else{
				swal("请定位标签!","请重试！","error");
			}
		}else{
			swal("请填写标签名称!","请重试！","error");
		}
	}, Cesium.ScreenSpaceEventType.RIGHT_CLICK);
}
//控制添加按钮，防止冲突
var isaddtag = true;
function ctrladdtag(){
	if(isaddtag){
		addTag(viewer);
		isaddtag = false;
	}
}