直接上代码和效果图,代码中有步骤注释,很简单
需要替换您自己的高德API KEY。
<html>
<head>
<script src="https://webapi.amap.com/maps?v=1.3&key=你的KEY&plugin=AMap.Autocomplete,AMap.Walking,AMap.PlaceSearch,AMap.PolyEditor,AMap.CircleEditor,AMap.Transfer,AMap.Driving,AMap.CitySearch,AMap.Heatmap,AMap.Size" type="text/javascript"></script>
<script src="https://webapi.amap.com/ui/1.0/main.js?v=1.0.11"></script>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
</head>
<body>
<div id="mapContainer" style="height: 100%;width: 100%;">
</div>
</body>
<script type="text/javascript">
// 车辆轨迹、速度数据
var routeInfo = 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// 1. 创建地图
var map = new AMap.Map("mapContainer", {
view: new AMap.View2D({
}),
lang: "zh_cn"
});
// 2.创建小汽车marker
var carMarker = new AMap.Marker({
map: map,
position: [routeInfo[0].lng, routeInfo[0].lat],
icon: "http://webapi.amap.com/images/car.png",
offset: new AMap.Pixel(-26, -13),
autoRotation: true
});
// 3.创建跟速度信息展示框
var carWindow = new AMap.InfoWindow({
offset: new AMap.Pixel(6, -25),
content: ""
});
// 4.生成车辆回放轨迹
var pathPolyline = initializePaths(routeInfo);
// 5.车辆随轨迹移动
carMarker.moveAlong(pathPolyline.getPath(), 1000, function (k) {
return k
}, false);
// 6.速度框随车辆移动
AMap.event.addListener(carMarker, 'moving', function (e) {
var lastLocation = e.passedPath[e.passedPath.length - 1];
carWindow.setPosition(lastLocation);
setVehicleSpeedInWidowns(lastLocation);
});
// 7.打开速度框
carWindow.open(map, carMarker.getPosition());
// 8.地图自适应缩放
map.setFitView();
function initializePaths(paths) {
var line;
var pathLngLatArray = new Array();
if (paths) {
for (var i = 0; i < paths.length; i++) {
pathLngLatArray.push(new AMap.LngLat(paths[i].lng, paths[i].lat));
}
line = new AMap.Polyline({
map: map,
path: pathLngLatArray,
strokeColor: 'red',
strokeOpacity: 0.8,
strokeWeight: 6,
strokeStyle: 'solid'
});
line.setMap(map);
}
return line;
}
function setVehicleSpeedInWidowns(lnglat) {
for (var i = 0; i < routeInfo.length; i++) {
if (lnglat.distance(new AMap.LngLat(routeInfo[i].lng, routeInfo[i].lat)) < 4) {
carWindow.setContent("速度:" + (routeInfo[i].speed * 1.852).toFixed(2) + "公里/时");
return;
}
}
}
</script>
</html>