C# sogou地图API应用总结_.NET

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C# sogou地图API应用总结

2014/8/15 10:13:57 王小贝程序员俱乐部我要评论(0)

摘要：地图的初始化1、添加引用地图的API文件：<scriptsrc="http://api.go2map.com/maps/js/api_v2.5.1.js"type="text/javascript"></script>2、网站初始化加载事件：window.onload=function(){varmap=newsogou.maps.Map(document.getElementById("map_canvas"),{});}创建一个id为map_canvas的div
标签：

地图的初始化
1、添加引用地图的API文件： <script src="http://api.go2map.com/maps/js/api_v2.5.1.js" type="text/javascript"></script>
2、网站初始化加载事件： window.onload = function () { var map = new sogou.maps.Map(document.getElementById("map_canvas"), {}); }
创建一个id为map_canvas的div,自定义div样式，网站运行时地图自动加载；

具体代码如下

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<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <style type="text/css">
html {height: auto;}
body {height: auto;margin: 0;padding: 0;}
#map_canvas {width:1000px;height: 500px;position: absolute;}
@media print {#map_canvas {height: 950px;}}
</style>

    <script src="http://api.go2map.com/maps/js/api_v2.5.1.js" type="text/javascript"></script>
    <script>
        window.onload = function () {
            var map = new sogou.maps.Map(document.getElementById("map_canvas"), {});

        } 
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div id="map_canvas"></div>
    </form>
</body>
</html>

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指定显示莫城市地图

关键代码：

 window.onload = function () { 
 var myOptions = { zoom: 10,center: new sogou.maps.Point(12956000, 4824875) };//城市坐标，本坐标为北京坐标
 var map = new sogou.maps.Map(document.getElementById("map_canvas"), myOptions); 
 }

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地图属性了解

列举一下常用的一些属性比如:地图的移动、地图类型转换、跳转到指定城市

具体代码如下

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <style type="text/css">
html {height: auto;}
body {height: auto;margin: 0;padding: 0;}
#map_canvas {width:1000px;height: 500px;position: absolute;}
@media print {#map_canvas {height: 950px;}}
</style>

    <script src="http://api.go2map.com/maps/js/api_v2.5.1.js" type="text/javascript"></script>
    <script>
        var map;//创建全局变量
       
        window.onload = function () { 
            var myOptions = { zoom: 10, center: new sogou.maps.Point(12956000, 4824875) };//指定城市
            map = new sogou.maps.Map(document.getElementById("map_canvas"), myOptions);//创建地图 

        }

     
         //setMapTypeId方法示例
        function setMapTypeId(num) { 
            //设置地图类型，如：
            //sogou.maps.MapTypeId.ROADMAP 普通地图
            //sogou.maps.MapTypeId.SATELLITE 卫星地图
            //sogou.maps.MapTypeId.HYBRID 卫星和路网混合地图
            //map.setMapTypeId(sogou.maps.MapTypeId.HYBRID)
            switch (num) {
                case 1: map.setMapTypeId(sogou.maps.MapTypeId.ROADMAP); break; //普通地图
                case 2: map.setMapTypeId(sogou.maps.MapTypeId.SATELLITE); break; //卫星地图
                case 3: map.setMapTypeId(sogou.maps.MapTypeId.HYBRID); break; //卫星和路网混合地图
            }
        }
        //panBy方法示例地图手动移动
        function panBy(a, b) {
            map.panBy(a, b)
        }
        //setOptions方法示例显示指定地区
        function setOptions() {
            //同时设置地图中心、级别、类型
            map.setOptions({ center: new sogou.maps.Point(13522000, 3641093), zoom: 12, mapTypeId: sogou.maps.MapTypeId.ROADMAP })
        }
        //setCenter方法示例 显示指定的地区 a、b为地图坐标，C为地图级别
        function setCenter(a, b, c) {
            map.setCenter(new sogou.maps.Point(a, b), c)
        }
        //fitBounds方法示例 跳转到指定的范围内
        function fitBounds() {
            //设置一个故宫附近的范围
            var bounds = new sogou.maps.Bounds(12955101, 4824738, 12958355, 4827449);
            //将地图设置为可全部显示这个范围
            //注：不是设置bounds为这个值，而是调整到合适的位置
            map.fitBounds(bounds)
        }



    </script>
</head>
<body>
    <form id="form1" runat="server">
    <input value="普通地图" onclick="setMapTypeId(1)"  type="button"/>
    <input value="卫星地图" onclick="setMapTypeId(2)" type="button"/>
    <input value="卫星和路网混合地图" onclick="setMapTypeId(3)" type="button"/>
    <input value="向左移动" onclick="panBy(200,0)" type="button"/>
    <input value="向右移动" onclick="panBy(-200,0)" type="button"/>
    <input value="向上移动" onclick="panBy(0,200)" type="button"/>
    <input value="向下移动" onclick="panBy(0,-200)" type="button"/>
    <input value="向左上移动" onclick="panBy(200,200)" type="button"/> 
    <input value="上海" onclick="setOptions()" type="button"/>
    <input value="天津" onclick="setCenter(13046000,4714250,10)" type="button"/>
      <input value="故宫" onclick="fitBounds()" type="button"/>
    <div id="map_canvas" ></div>
    </form>
</body>
</html>

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地图描点属性

地图上很重要的属性，给地图添加描点，是常用的方法属性，

搜狗API提供两种描点填写形式默认描点和动态添加描点

默认描点添加：

  var location = new sogou.maps.Point(12956000, 4824875); //指定描点位置
var map = new sogou.maps.Map(document.getElementById("map_canvas"), {});//初始化地图
 var marker = new sogou.maps.Marker({
                position: location,//描点坐标
                title: "描点",//描点名称
                label: { visible: true, align: "BOTTOM" },//描点显示形式
                map: map, 
            });//添加描点到地图

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动态描点添加

  window.onload = function () { 
        //初始化地图
            map = new sogou.maps.Map(document.getElementById("map_canvas"), {});
//为地图添加点击事件
 sogou.maps.event.addListener(map, 'click', function (event) {
                var marker1 = new sogou.maps.Marker({
                position: event.point, 
                map: map
            });
            }); 
        }

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根据两描点测距

//获取类的唯一示例
        function getInstance(a) {
            a.hasOwnProperty("_instance") || (a._instance = new a);
            return a._instance
        }
 //两点相连
        function Lines(myLatlng, myPoint) { 
            var convertor = getInstance(sogou.maps.Convertor);
            var distance = convertor.distance(myLatlng, myPoint);
            //两点链接
            var line = new sogou.maps.Polyline({
                path: [myLatlng, myPoint],
                strokeColor: "#FF0000",
                strokeOpacity: 1.0,
                strokeWeight: 1,
                title: parseInt(distance) + "米",
                map: map
            }); 
        }

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根据上述属性做了一个小的模块，地图上动态测距代码如下：

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title></title>
    <style type="text/css">
html {height: auto;}
body {height: auto;margin: 0;padding: 0;}
#map_canvas {width:1000px;height: 500px;position: absolute;}
@media print {#map_canvas {height: 950px;}}
</style>

    <script src="http://api.go2map.com/maps/js/api_v2.5.1.js" type="text/javascript"></script>
    <script>
        var map;var num;var Listener;
        //获取类的唯一示例
        function getInstance(a) {
            a.hasOwnProperty("_instance") || (a._instance = new a);
            return a._instance
        }

        window.onload = function () { 
        //初始化地图
            map = new sogou.maps.Map(document.getElementById("map_canvas"), {}); 
        }
        function AddCj() {
            var mypointh; var myPoint;
            num = 0;
            //为地图添加点击事件、点击后显示当前坐标并添加点击描点
            Listener = sogou.maps.event.addListener(map, 'click', function (event) {
                if (num == 0) {
                    mypointh = myPoint = event.point; //获取点击位置的坐标  
                }
                else {
                    myPoint = mypointh;
                    mypointh = event.point; //获取点击位置的坐标  
                }
                Lines(mypointh, myPoint);
                num++;
            });
        }
        function DelCj() {
            sogou.maps.event.removeListener(Listener)
        }

        //两点相连
        function Lines(myLatlng, myPoint) { 
            var convertor = getInstance(sogou.maps.Convertor);
            var distance = convertor.distance(myLatlng, myPoint);
            //两点链接
            var line = new sogou.maps.Polyline({
                path: [myLatlng, myPoint],
                strokeColor: "#FF0000",
                strokeOpacity: 1.0,
                strokeWeight: 1,
                title: parseInt(distance) + "米",
                map: map
            });
            placeMarker(myLatlng, parseInt(distance));
        }


        //动态添加描点，根据指定的坐标创建描点
        function placeMarker(location,jl) {
            var clickedLocation = location;
            var marker1 = new sogou.maps.Marker({
                position: location,
                title: jl+"米",
                label:{visible:true,align:"BOTTOM"},
                map: map
            });
        }

        function Mapclear() {
            num = 0;
            map.clearAll();
        }

    </script>
</head>
<body>
    <form id="form1" runat="server">
    <input type="button" value="测距" onclick="AddCj()" />
    <input type="button" value="取消测距" onclick="DelCj()" />
    <input type="button" value="清空" onclick="Mapclear()" /> 
    <div id="map_canvas" ></div>
    </form>
</body>
</html>