版本：9.1.0
3DTiles初始加载位置变换

在3DTiles进行初始化加载时，设置倾斜数据的位置变换。
   <!DOCTYPE html>
   <html>
   <head>
       <meta charset="utf-8"/>
       <title>3DTiles初始加载位置变换</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/v9.1.0/mapmost-webgl-min.js"></script>
   </head>
   <body>
   <div id="map"></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  
        });
    
        map.on('load', function () {
            const TILESET_URL = "<your 3dtiles url>"; 

            // 创建初始化的单位矩阵
            let matrix = new window.mapmost.Matrix4();
            // 添加平移旋转变换
            let matrix4 = matrix.translate([0, 0, 200]).rotateX(Math.PI / 2);
            map.addLayer(
                {
                    id: 'tile-3d-layer',
                    type: "3DTiles",
                    data: TILESET_URL,
                    transform: matrix4
                }
            )
        })

   </script>
   </body>
   </html>