日期:2014-05-16  浏览次数:20333 次

百度地图JavaScript API如何在同一页面显示多个地图?

经常有人问,百度地图JavaScript API能在同一页面显示多个地图吗?当然可以啊,为什么不可以呢?地图之于页面无非就是个div,我们可以在页面显示多个div,自然也可以显示多个地图。

以下是在页面加入两个地图的效果:

页面核心代码如下:

<style type="text/css">
	#mapDiv1 { height:400px; width:600px; }
	#mapDiv2 { height:400px; width:600px; left:620px; top:-420px;}
</style>
<body>
    <div id="mapDiv1" ></div>
   <br />
    <div id="mapDiv2" ></div>
</body>
</html>
<script type="text/javascript">
    //地图初始化

    var map1 = new BMap.Map("mapDiv1");
    map1.centerAndZoom(new BMap.Point(116.401394,39.915156),12);
    map1.enableScrollWheelZoom();

    var map2 = new BMap.Map("mapDiv2",{mapType: BMAP_HYBRID_MAP});   //设置卫星图为底图
    map2.centerAndZoom(new BMap.Point(116.401394,39.915156),12);
    map2.enableScrollWheelZoom();
</script>

以上代码可以实现在同一页面显示两幅并排的地图,如果想要实现拖拽、缩放左边的地图,右边的地图也随着移动、缩放,则只需要给左边的地图注册zoomend和moveend事件即可,代码如下:

	map1.addEventListener("zoomend", function () {
	map2.zoomTo(map1.getZoom());
	map2.panTo(map1.getCenter());
	});

	map1.addEventListener("moveend", function () {
	map2.zoomTo(map1.getZoom());
	map2.panTo(map1.getCenter());
	});

完整代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <script type="text/javascript" src="http://api.map.baidu.com/api?v=1.4"></script>
    <title>地图接口</title>
</head>
<style type="text/css">
	#mapDiv1 { height:400px; width:600px; }
	#mapDiv2 { height:400px; width:600px; left:620px; top:-420px;}
</style>
<body>
    <div id="mapDiv1" ></div>
   <br />
    <div id="mapDiv2" ></div>
</body>
</html>
<script type="text/javascript">
    //地图初始化 
    var map1 = new BMap.Map("mapDiv1");
    map1.centerAndZoom(new BMap.Point(116.401394,39.915156),12);
    map1.enableScrollWheelZoom();


    var map2 = new BMap.Map("mapDiv2",{mapType: BMAP_HYBRID_MAP});   //设置卫星图为底图
    map2.centerAndZoom(new BMap.Point(116.401394,39.915156),12);
    map2.enableScrollWheelZoom();

  
	map1.addEventListener("zoomend", function () {
	map2.zoomTo(map1.getZoom());
	map2.panTo(map1.getCenter());
	});

	map1.addEventListener("moveend", function () {
	map2.zoomT