本文实例讲述了sogou地图API应用,是非常实用的技巧。分享给大家供大家参考。具体实现方法如下:
地图的初始化
1、添加引用地图的API文件:
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<script src= "http://www.zzvips.com/201409/other/api_v2.5.1.js" type= "text/javascript" ></script>
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2、网站初始化加载事件:
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window.onload = function () {
var map = new sogou.maps.Map(document.getElementById( "map_canvas" ), {});
}
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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://www.zzvips.com/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>
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指定显示莫城市地图
关键代码如下:
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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
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<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://www.zzvips.com/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>
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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:
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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
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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
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//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:
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<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://www.zzvips.com/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>
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希望本文所述对大家的sogou地图开发有所帮助