如何利用地图API制作汽车沿道路行驶的动画？——如何获得道路层数据
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>点沿直线运动</title>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2&services=true"></script>
</head>
<body>
<div style="width:520px;height:340px;border:1px solid gray" id="container"></div>
<input type="button" value="开始" onclick="run();" />
</body>
</html>
<script type="text/javascript">
var map = new BMap.Map("container");
map.centerAndZoom(new BMap.Point(116.404, 39.915), 15);
var myP1 = new BMap.Point(116.380967,39.913285); //起点
var myP2 = new BMap.Point(116.424374,39.914668); //终点
var myIcon = new BMap.Icon("Mario.png", new BMap.Size(32, 70), { //小车图片
//offset: new BMap.Size(0, -5), //相当于CSS精灵
imageOffset: new BMap.Size(0, 0) //图片的偏移量。为了是图片底部中心对准坐标点。
});
var driving2 = new BMap.DrivingRoute(map, {renderOptions:{map: map, autoViewport: true}}); //驾车实例
driving2.search(myP1, myP2); //显示一条公交线路
function run(){
var driving = new BMap.DrivingRoute(map); //驾车实例
driving.search(myP1, myP2);
driving.setSearchCompleteCallback(function(){
var pts = driving.getResults().getPlan(0).getRoute(0).getPath(); //通过驾车实例，获得一系列点的数组
var paths = pts.length; //获得有几个点
var carMk = new BMap.Marker(pts[0],{icon:myIcon});
map.addOverlay(carMk);
i=0;
function resetMkPoint(i){
carMk.setPosition(pts[i]);
if(i < paths){
setTimeout(function(){
i++;
resetMkPoint(i);
},100);
}
}
setTimeout(function(){
resetMkPoint(5);
console.log(i);
},100)
});
}
</script>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>点沿直线运动</title>
<script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2&services=true"></script>
</head>
<body>
<div style="width:520px;height:340px;border:1px solid gray" id="container"></div>
<input type="button" value="开始" onclick="run();" />
</body>
</html>
<script type="text/javascript">
var map = new BMap.Map("container");
map.centerAndZoom(new BMap.Point(116.404, 39.915), 15);
var myP1 = new BMap.Point(116.380967,39.913285); //起点
var myP2 = new BMap.Point(116.424374,39.914668); //终点
var myIcon = new BMap.Icon("Mario.png", new BMap.Size(32, 70), { //小车图片
//offset: new BMap.Size(0, -5), //相当于CSS精灵
imageOffset: new BMap.Size(0, 0) //图片的偏移量。为了是图片底部中心对准坐标点。
});
var driving2 = new BMap.DrivingRoute(map, {renderOptions:{map: map, autoViewport: true}}); //驾车实例
driving2.search(myP1, myP2); //显示一条公交线路
function run(){
var driving = new BMap.DrivingRoute(map); //驾车实例
driving.search(myP1, myP2);
driving.setSearchCompleteCallback(function(){
var pts = driving.getResults().getPlan(0).getRoute(0).getPath(); //通过驾车实例，获得一系列点的数组
var paths = pts.length; //获得有几个点
var carMk = new BMap.Marker(pts[0],{icon:myIcon});
map.addOverlay(carMk);
i=0;
function resetMkPoint(i){
carMk.setPosition(pts[i]);
if(i < paths){
setTimeout(function(){
i++;
resetMkPoint(i);
},100);
}
}
setTimeout(function(){
resetMkPoint(5);
console.log(i);
},100)
});
}
</script>
http://www.cnblogs.com/milkmap/archive/2011/07/12/2104212.html
