版本：9.3.0
虚线图层

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8" />
    <title>虚线图层</title>
    <meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
    <style>
        body {
            margin: 0;
            padding: 0;
        }

        #map {
            position: absolute;
            top: 0;
            bottom: 0;
            width: 100%;
        }
    </style>
    <script src="https://delivery.mapmost.com/cdn/sdk/webgl/v9.3.0/mapmost-webgl-min.js"></script>
</head>

<body>
    <div id="map"></div>
    <script>
        let map = new mapmost.Map({
            container: 'map',  
            style: "<your style url>", 
            center: [120.7167750088779, 31.323951343532258], 
            zoom: 14.907143631939364, 
            pitch: 59.48725112156901, 
            bearing: -54.10626584095007, 
            userId: '***', // 授权码
        });

        map.on('load', function () {
            map.addSource('road', {
                "type": "geojson",
                 data: "../example_data/road_seg.geojson"
            })
            map.addLayer({
                "id": "road",
                "type": 'line',
                "source": "road",
                "layout": {
                    // "line-cap":'square'
                },
                "paint": {
                    // "line-blur":5,  // 线的模糊度
                    "line-width": 2,
                    "line-color": "rgb(0, 105, 255)",
                    "line-dasharray": [2, 1], // 虚线 2m 就隔开1个单位长度的缺口
                    // "line-gap-width":10, // 在线的实际路径之外绘制一条线。10表示内部间隙的宽度
                    // "line-offset":100, 
                }
            })

            // 将虚线图层放buildings-high前
            map.moveLayer('road','buildings-high')
        })

    </script>
</body>

</html>