C# sogou地图API应用总结

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

<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) + "",

                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) + "",

                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+"",

                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>
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