php高德地图计算距离接口 路径长度-距离/面积计算-示例中心-JS API 示例 | 高德地图API...

点到线的距离和最近点

html,body,#container{

height: 100%

}

//初始化地图对象，加载地图

var map = new AMap.Map("container", {

resizeEnable: true,

zoom: 13

});

function pathLength(){

var arr=new Array();//经纬度坐标数组

arr.push(new AMap.LngLat("116.368904","39.913423"));

arr.push(new AMap.LngLat("116.382122","39.901176"));

arr.push(new AMap.LngLat("116.387271","39.912501"));

arr.push(new AMap.LngLat("116.398258","39.904600"));

arr.push(new AMap.LngLat("116.427097","39.912500"));

//定义折线对象

polyline=new AMap.Polyline({

path:arr, //设置折线的节点数组

strokeColor:"red",

strokeOpacity:1,

strokeWeight:3,

strokeDasharray:[10,5]

});

polyline.setMap(map);//地图上添加折线

var distance = Math.round(AMap.GeometryUtil.distanceOfLine(arr));

var text = new AMap.Text({

position: new AMap.LngLat(116.427097,39.912500),

text: '折线长' + distance + '米',

offset: new AMap.Pixel(-20, -20)

})

map.add(text);

map.setFitView();

}

pathLength();