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3DGS batch singulation

Dynamically create an outer box model of the 3DGS singleton area to achieve the 3DGS singleton effect in the outer bounding box.

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<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8" />
    <title>3DGS batch singulation</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/v9.16.0/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: 15,
            pitch: 60,
            userId: "***", // Authorization code
        });

        map.on('load', function () {

            //Load 3DGS service
            map.addLayer({
                id: "gs-3d-layer",
                type: "MMGS",
                url: "http://****/3dgs/yuanqu_100km/1/mmgs.json",
                depthWrite: true,
            });

            // Batch singleton
            const warmColors = [
                "#FF0000", // red
                "#00FF00", // green
                "#0000FF", // blue
                "#FFFF00", // yellow
                "#FF00FF", // magenta
                "#00FFFF", // cyan
                "#FF8000", // orange
                "#8000FF", // purple
                "#80FF00", // lime green
                "#FF0080", // pink
            ];

            Promise.all([
                fetch("./data.json").then((res) =>
                    res.json(),
                ),
            ]).then((results) => {
                let analysis = new mapmost.ClassifyAnalysis(map);
                let data = [];
                data = data.concat(
                    results[0].map((item, index) => {
                        return {
                            coordinate: item.contour_4326,
                            color: warmColors[index % warmColors.length],
                            opacity: 0.1,
                            baseHeight: 0,
                            stretchHeight: item.max_z + 20,
                        };
                    }),
                );
                analysis.analyse(data);
            });
        })
    </script>
</body>

</html>