~admin/screen_api_v2.git

New file
			@@ -0,0 +1,202 @@
			<%@ page contentType="text/html;charset=UTF-8" language="java" %>
			<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
			<!DOCTYPE html>
			<head>
			<meta charset="utf-8"/>
			<title></title>
			<script type="text/javascript"
			src="http://api.map.baidu.com/api?v=2.0&ak=rER1sgBIcQxkfNSlm2wmBGZGgEERrooM"></script>
			<script type="text/javascript" src="/js/jquery.min.js"></script>
			</head>
			<style type="text/css">
			body,
			html,
			#mapCanvas {
			width: 100%;
			height: 100%;
			overflow: hidden;
			margin: 0;
			z-index: 0;
			font-size: 14px;
			font-family: "微软雅黑";
			}

			.main_body {
			border: 0;
			margin: 0;
			width: 100%;
			height: 100%;
			position: relative;
			}

			* {
			margin: 0;
			padding: 0;
			list-style: none;
			}
			</style>

			<body>
			<div class="main_body">
			<div id="mapCanvas"></div> <!-- 百度地图 -->
			<!-- 传sensorInfo,regionCode,regionName,monitorPoint,device-->
			<div id="pollutionSourceParams" style="display: none;">
			${requestScope.pollutionSourceParams}
			</div>
			</div>
			</body>
			</html>

			<script type="text/javascript">
			var moralMap = {};
			var mapStyle = {
			features: ["road", "building", "water", "land"], // 隐藏地图上的poi
			style: "normal" // 设置地图风格为高端黑
			};
			var params = $.parseJSON($("#pollutionSourceParams").html());
			var weatherInfoToday = params["weatherInfoToday"];
			var weatherInfoForecast = params["weatherInfoForecast"];
			var isToday = params["isToday"];
			console.log(weatherInfoToday);
			console.log(weatherInfoForecast);
			console.log(isToday);
			var device = params["device"];
			var cityName = params["weatherInfoToday"]["cityName"];
			var map = new BMap.Map("mapCanvas", {enableMapClick: false});
			map.setCurrentCity("昆山");
			map.setMapStyle(mapStyle);
			map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放
			var navigation = new BMap.NavigationControl({
			anchor: BMAP_ANCHOR_BOTTOM_RIGHT,
			type: BMAP_NAVIGATION_CONTROL_LARGE
			});
			map.addControl(navigation);
			map.addControl(new BMap.ScaleControl());
			var longitude = params["device"]["longitude"];
			var latitude = params["device"]["latitude"];
			var point = new BMap.Point(longitude, latitude);
			var icon = new BMap.Icon("/img/ico00.png", new BMap.Size(50, 50));
			var marker = new BMap.Marker(point, {icon: icon, offset: new BMap.Size(0, -20)});
			map.addOverlay(marker);
			map.setCurrentCity(cityName);
			map.centerAndZoom(point, 19);
			var bounds = map.getBounds(); //获取地图可视区域
			var sw = bounds.getSouthWest(); //获取西南角的经纬度(左下端点)
			var ne = bounds.getNorthEast(); //获取东北角的经纬度(右上端点)
			var wn = new BMap.Point(sw.lng, ne.lat); //获取西北角的经纬度(左上端点)
			var es = new BMap.Point(ne.lng, sw.lat); //获取东南角的经纬度(右下端点)
			var n = new BMap.Point(longitude, ne.lat);
			var s = new BMap.Point(longitude, sw.lat);
			var w = new BMap.Point(sw.lng, latitude);
			var e = new BMap.Point(ne.lng, latitude);
			var dirPoint;
			if (Object.keys(weatherInfoForecast).length === 0) {
			var windDir = weatherInfoToday["windDir"];
			dirPoint = getWindDir(windDir, dirPoint);
			} else {
			if (isToday) {
			var windDir = weatherInfoToday["windDir"];
			dirPoint = getWindDir(windDir, dirPoint);
			} else {
			var windDir = weatherInfoForecast["windDirDay"];
			dirPoint = getWindDir(windDir, dirPoint);
			}
			}
			var polyline = new BMap.Polyline([
			dirPoint,
			point
			],
			{strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1}
			);
			map.addOverlay(polyline);// 画两点间线
			addArrow(polyline, 50, Math.PI / 7);

			var winfowText =
			'<div style="min-height:20px;overflow:auto;max-height:330px;" >';
			var opts = {
			width: 220,
			height: 220,
			enableMessage: false //设置允许信息窗发送短息
			}
			winfowText += ("<p style='height: 22px;line-height: 22px'></p>");

			winfowText += "</div>";
			marker.addEventListener("click", function () {
			var infoWindow = new BMap.InfoWindow(winfowText, opts);
			this.openInfoWindow(infoWindow);
			});


			function addArrow(polyline, length, angleValue) {
			var linePoint = polyline.getPath();// 线的坐标串
			var arrowCount = linePoint.length;
			for (var i = 1; i < arrowCount; i++) { // 在拐点处绘制箭头
			var pixelStart = map.pointToPixel(linePoint[i - 1]);
			var pixelEnd = map.pointToPixel(linePoint[i]);
			var angle = angleValue;// 箭头和主线的夹角
			var r = length; // r/Math.sin(angle)代表箭头长度
			var delta = 0; // 主线斜率，垂直时无斜率
			var param = 0; // 代码简洁考虑
			var pixelTemX, pixelTemY, poMiddleX, poMiddleY;// 临时点坐标
			var pixelX, pixelY, pixelX1, pixelY1;// 箭头两个点
			poMiddleX = (pixelEnd.x + pixelStart.x) / 2;
			poMiddleY = (pixelEnd.y + pixelStart.y) / 2;
			if (poMiddleX - pixelStart.x == 0) { // 斜率不存在时
			pixelTemX = poMiddleX;
			if (poMiddleY > pixelStart.y) {
			pixelTemY = poMiddleY - r;
			} else {
			pixelTemY = poMiddleY + r;
			}
			// 已知直角三角形两个点坐标及其中一个角，求另外一个点坐标算法
			pixelX = pixelTemX - r * Math.tan(angle);
			pixelX1 = pixelTemX + r * Math.tan(angle);
			pixelY = pixelY1 = pixelTemY;
			} else { // 斜率存在时
			delta = (poMiddleY - pixelStart.y) / (poMiddleX - pixelStart.x);
			param = Math.sqrt(delta * delta + 1);
			if ((poMiddleX - pixelStart.x) < 0) { // 第二、三象限
			pixelTemX = poMiddleX + r / param;
			pixelTemY = poMiddleY + delta * r / param;
			} else { // 第一、四象限
			pixelTemX = poMiddleX - r / param;
			pixelTemY = poMiddleY - delta * r / param;
			}
			// 已知直角三角形两个点坐标及其中一个角，求另外一个点坐标算法
			pixelX = pixelTemX + Math.tan(angle) * r * delta / param;
			pixelY = pixelTemY - Math.tan(angle) * r / param;
			pixelX1 = pixelTemX - Math.tan(angle) * r * delta / param;
			pixelY1 = pixelTemY + Math.tan(angle) * r / param;
			}
			var pointArrow = map.pixelToPoint(new BMap.Pixel(pixelX, pixelY));
			var pointArrow1 = map.pixelToPoint(new BMap.Pixel(pixelX1, pixelY1));
			var pointMiddle = map.pixelToPoint(new BMap.Pixel(poMiddleX, poMiddleY));
			var Arrow = new BMap.Polyline([pointArrow, pointMiddle, pointArrow1],
			{strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1});
			map.addOverlay(Arrow);
			}
			};

			function getWindDir(windDir, dirPoint) {
			if (windDir == "北风") {
			dirPoint = n;
			} else if (windDir == "南风") {
			dirPoint = s;
			} else if (windDir == "西风") {
			dirPoint = w;
			} else if (windDir == "东风") {
			dirPoint = e;
			} else if (windDir == "西北风") {
			dirPoint = wn;
			} else if (windDir == "东北风") {
			dirPoint = ne;
			} else if (windDir == "西南风") {
			dirPoint = sw;
			} else if (windDir == "东南风") {
			dirPoint = es;
			} else {
			dirPoint = n;
			}
			return dirPoint;
			};
			</script>