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线特效源代码展示

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<!DOCTYPE html>
<html>
<head>
    <meta charset='UTF-8' />
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    <!--
        以下CSS地址请在安装软件了替换成本地的地址
        CSS地址请使用:
        http://localhost:9000/bigemap.js/v2.1.0/bigemap.css
        软件下载地址 http://www.bigemap.com/reader/download/detail201802017.html
    -->
    <link href='http://www.bigemap.com:9000/bigemap.js/v2.1.0/bigemap.css' rel='stylesheet' />
    <!--
        JS地址请使用:
        http://localhost:9000/bigemap.js/v2.1.0/bigemap.js
    -->
    <script src='http://www.bigemap.com:9000/bigemap.js/v2.1.0/bigemap.js'></script>
    <script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
    <script type="text/javascript" src="https://gallerybox.echartsjs.com/dep/echarts/latest/echarts.min.js"></script>
    <script src="/Public/offline/iclient/js/iclient9.min.js"></script>
    <style>
        body { margin: 0; padding: 0;}
        #map { position: absolute; top: 0; bottom: 0; width: 100%; }
    </style>
    <title>Google Map Streets</title>
</head>
<body>
<div id='map'></div>
<script>
    //软件配置信息地址,软件安装完成之后使用本地地址,如:http://localhost:9000
    BM.Config.HTTP_URL = 'http://www.bigemap.com:9000';
    // 在ID为map的元素中实例化一个地图,并设置地图的ID号为 bigemap.googlemap-streets,ID号程序自动生成,无需手动配置,并设置地图的投影为百度地图 ,中心点,默认的级别和显示级别控件
    var map = BM.map('map','bigemap.googlemap-streets', { center: [39.8, 116.5], zoom: 10, zoomControl: true,attributionControl:false });
    $.get('/Public/offline/iclient/data/lines-bus.json', function (data) {
        var hStep = 300 / (data.length - 1);
        var busLines = [].concat.apply([], data.map(function (busLine, idx) {
            var prevPt;
            var points = [];
            for (var i = 0; i < busLine.length; i += 2) {
                var pt = [busLine[i], busLine[i + 1]];
                if (i > 0) {
                    pt = [
                        prevPt[0] + pt[0],
                        prevPt[1] + pt[1]
                    ];
                }
                prevPt = pt;

                points.push([pt[0] / 1e4, pt[1] / 1e4]);
            }
            return {
                coords: points,
                lineStyle: {
                    normal: {
                        color: echarts.color.modifyHSL('#5A94DF', Math.round(hStep * idx))
                    }
                }
            };
        }));
        let option = {
            series: [
                {
                    type: 'lines',
                    coordinateSystem: 'leaflet',
                    polyline: true,
                    data: busLines,
                    silent: true,
                    lineStyle: {
                        normal: {
                            opacity: 0.2,
                            width: 1
                        }
                    },
                    progressiveThreshold: 500,
                    progressive: 200,
                    zlevel: 2
                },
                {
                    type: 'lines',
                    coordinateSystem: 'leaflet',
                    polyline: true,
                    data: busLines,
                    lineStyle: {
                        normal: {
                            width: 0
                        }
                    },
                    effect: {
                        constantSpeed: 20,
                        show: true,
                        trailLength: 0.1,
                        symbolSize: 1.5
                    },
                    zlevel: 1
                }]
        };
        BM.supermap.echartsLayer(option).addTo(map);
    });
</script>
</body>
</html>