轨迹回放

使用Marker.moveAlong方法，使Marker沿路径移动，模拟行驶轨迹回放。

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          <!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <title>轨迹回放</title>
    <link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/>
    <style>
        html, body, #container {
            height: 100%;
            width: 100%;
        }

        .input-card .btn{
            margin-right: 1.2rem;
            width: 9rem;
        }

        .input-card .btn:last-child{
            margin-right: 0;
        }
    </style>
</head>
<body>
<div id="container"></div>
<div class="input-card">
    <h4>轨迹回放控制</h4>
    <div class="input-item">
        <input type="button" class="btn" value="开始动画" id="start" onclick="startAnimation()"/>
        <input type="button" class="btn" value="暂停动画" id="pause" onclick="pauseAnimation()"/>
    </div>
    <div class="input-item">
        <input type="button" class="btn" value="继续动画" id="resume" onclick="resumeAnimation()"/>
        <input type="button" class="btn" value="停止动画" id="stop" onclick="stopAnimation()"/>
    </div>
</div>
<script type="text/javascript" src="https://webapi.amap.com/maps?v=1.4.15&key=您申请的key值"></script>
<script>
    var marker, lineArr = [[116.478935,39.997761],[116.478939,39.997825],[116.478912,39.998549],[116.478912,39.998549],[116.478998,39.998555],[116.478998,39.998555],[116.479282,39.99856],[116.479658,39.998528],[116.480151,39.998453],[116.480784,39.998302],[116.480784,39.998302],[116.481149,39.998184],[116.481573,39.997997],[116.481863,39.997846],[116.482072,39.997718],[116.482362,39.997718],[116.483633,39.998935],[116.48367,39.998968],[116.484648,39.999861]];

    var map = new AMap.Map("container", {
        resizeEnable: true,
        center: [116.397428, 39.90923],
        zoom: 17
    });

    marker = new AMap.Marker({
        map: map,
        position: [116.478935,39.997761],
        icon: "https://webapi.amap.com/images/car.png",
        offset: new AMap.Pixel(-26, -13),
        autoRotation: true,
        angle:-90,
    });

    // 绘制轨迹
    var polyline = new AMap.Polyline({
        map: map,
        path: lineArr,
        showDir:true,
        strokeColor: "#28F",  //线颜色
        // strokeOpacity: 1,     //线透明度
        strokeWeight: 6,      //线宽
        // strokeStyle: "solid"  //线样式
    });

    var passedPolyline = new AMap.Polyline({
        map: map,
        // path: lineArr,
        strokeColor: "#AF5",  //线颜色
        // strokeOpacity: 1,     //线透明度
        strokeWeight: 6,      //线宽
        // strokeStyle: "solid"  //线样式
    });


    marker.on('moving', function (e) {
        passedPolyline.setPath(e.passedPath);
    });

    map.setFitView();

    function startAnimation () {
        marker.moveAlong(lineArr, 200);
    }

    function pauseAnimation () {
        marker.pauseMove();
    }

    function resumeAnimation () {
        marker.resumeMove();
    }

    function stopAnimation () {
        marker.stopMove();
    }
</script>
</body>
</html>
        

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