版本：9.3.0
3DTiles淹没分析

在3DTiles场景中进行淹没分析可视化。
   <!DOCTYPE html>
   <html>
   <head>
       <meta charset="utf-8"/>
       <title>3DTiles淹没分析</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%;
           }

            .btn-group {
                   position: absolute;
                   top: 20px;
                   left: 20px;
               }
       </style>
       <script src="https://delivery.mapmost.com/cdn/sdk/webgl/v9.3.0/mapmost-webgl-min.js"></script>
   </head>
   <body>
   <div id="map"></div>
    <div class="btn-group">
        <button onClick="add()">淹没分析</button>
        <button onClick="remove()">移除</button>
    </div>
   <script>
      var map = new mapmost.Map({
       container: 'map',  
       style: "<your style url>", 
       center: [120.74449559193792, 31.30775326748954], 
       zoom: 16, 
       pitch: 60,
       userId: '***', // 授权码  
     });

    let analysis;
    let tileLayer;
    let modelGroup;
    map.on('load', function () {
        const TILESET_URL = "<your 3dtiles url>";
        map.addLayer(
            {
                id: 'tile-3d-layer',
                type: "3DTiles",
                data: TILESET_URL,
                callback: function (group, layer) {
                    tileLayer = layer;
                    modelGroup = group;
                }
            }
        )
    })

    function add() {
        analysis = new mapmost.FloodAnalysis(tileLayer);
        let polygon = [
            [120.74091493906315, 31.309723842354217],
            [120.74462296468971, 31.311393233066624],
            [120.74484083816549, 31.30670598817069],
            [120.74227073726502, 31.306037256905938],
            [120.74091493906315, 31.309723842354217]];
        analysis.analyse({
            models: modelGroup,
            minHeight: 0,
            maxHeight: 50,
            startColor: "#07f5ff",
            endColor: "#f27d06",
            speed: 5,
            colorMix: 0.6,
            // range: polygon
        });
    }

    function remove() {
        analysis.clear()
    }
    
   </script>
   </body>
   </html>