linelayer/index.html at main · LiuJianhuo/linelayer · GitHub

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<!DOCTYPE html>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <title>LineLayer图层</title>
    <style type="text/css">
    body,
    html {
        width: 100%;
        height: 100%;
        margin: 0;
    }
    #allmap {
        height: 100%;
        width: 100%;
    }
    ul li {
        list-style: none;
    }
    .btn-wrap {
        z-index: 999;
        position: fixed;
        bottom: 3.5rem;
        margin-left: 3rem;
        padding: 1rem 1rem;
        border-radius: .25rem;
        background-color: #fff;
        box-shadow: 0 2px 6px 0 rgba(27, 142, 236, 0.5);
    }
    .btn {
        width: 75px;
        height: 30px;
        float: left;
        background-color: #fff;
        color: rgba(27, 142, 236, 1);
        font-size: 14px;
        border: 1px solid rgba(27, 142, 236, 1);
        border-radius: 5px;
        margin: 0 5px;
        text-align: center;
        line-height: 30px;
    }
    .btn:hover {
        background-color: rgba(27, 142, 236, 0.8);
        color: #fff;
    }
    </style>
    <script type="text/javascript"
        src="//api.map.baidu.com/api?type=webgl&v=1.0&ak=zLhopYPPERGtpGOgimcdKcCimGRyyIsh"></script>
  <script src="https://cdn.bootcss.com/vConsole/3.3.0/vconsole.min.js"></script> <script></script>
        <script>
          // 开启移动端控制台
    var vConsole = new VConsole();
   </script>
</head>

<body>
    <div id="allmap"></div>
    <ul class="btn-wrap" style="z-index: 99;">
        <li class="light btn" onclick="addLineLayer()">添加图层</li>
        <li class="night btn" onclick="removeLineLayer()">清除图层</li>
    </ul>
</body>

</html>
<script type="text/javascript">
   if (!window.location.href.includes('wv=lg')) {
     window.location.href = `${window.location.href}?fix_font=true&is_nav_show=false&wv=lg`
   }
   setTimeout(() => {
    var map = new BMapGL.Map('allmap', {
    });
    var point = new BMapGL.Point(116.51397, 39.73517);
    map.centerAndZoom(point, 11);
    map.enableScrollWheelZoom(true);
    var lineLayer = null;
    // 添加图层
    function addLineLayer() {
        fetch("https://mapopen-pub-jsapigl.bj.bcebos.com/svgmodel/lineLayerData.json").then(res => {
            return res.json();
        }).then(testLineData => {
            if (!lineLayer) {
                lineLayer = new BMapGL.LineLayer({
					selectedIndex: -1,
                    enablePicked: true,
					autoSelect: false,
                    // selectedColor: 'black', // 选中项颜色
                    style: {
                        // borderMask: false,
						width: 10,
                        borderColor: 'rgba(27, 142, 236, .6)',
                        borderWeight: 0,
                        strokeWeight: 10,
                        strokeStyle: 'solid',
                        strokeColor: 'red',
                    }
                });
            }
            lineLayer.addEventListener('click', function (e) {
                if (e.value.dataIndex !== -1 && e.value.dataItem) {

                    // 使用样式配置，实现单选效果
                     this.updateState(e.value.dataIndex, { picked: true })

                }
            })

            lineLayer.setData(testLineData);
            map.addNormalLayer(lineLayer);
        })
    }
    // 移除图层
    function removeLineLayer() {
        map.removeNormalLayer(lineLayer);
    }
    addLineLayer();
   }, 3000);
</script>