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sogou map API usage example tutorial_javascript skills

WBOYOriginal: 2016-05-16 16:36:371463browse

The example in this article describes the application of sogou map API, which is a very practical technique. Share it with everyone for your reference. The specific implementation method is as follows:

Map initialization

1. Add the API file referencing the map:

<script src="http://xiazai.jb51.net/201409/other/api_v2.5.1.js" type="text/javascript"></script>

2. Website initialization loading event:

window.onload = function () { 
var map = new sogou.maps.Map(document.getElementById("map_canvas"), {});
}

Create a div with the ID map_canvas, customize the div style, and the map will be automatically loaded when the website is running;

The specific code is as follows

<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://xiazai.jb51.net/201409/other/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>

Specify to display Mo city map

The key code is as follows:

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); 
}

Understanding map attributes

List some commonly used attributes such as: map movement, map type conversion, jumping to a designated city

The specific code is as follows

<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://xiazai.jb51.net/201409/other/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>

Map point attributes

A very important attribute on the map. Adding drawing points to the map is a commonly used method attribute.

Sogou API provides two forms of filling in tracing points: default tracing points and dynamically added tracing points

Default tracing point added:

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

Add dynamic drawing points

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
 });
 }); 
}

Measure distance based on two tracing points

//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
 }); 
}

I made a small module based on the above attributes. The code for dynamic ranging on the map is as follows:

<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://xiazai.jb51.net/201409/other/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>

I hope this article will be helpful to everyone’s sogou map development

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