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版本：9.1.0

三维模型导出

支持对三维模型的导出，导出参数必须为模型对象中对应glb文件的组织结构，每次仅可以导出单个模型。

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>三维模型导出</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>
    <script src="https://delivery.mapmost.com/cdn/sdk/plugins/mapmost-webgl-transformControls/v2.0.0/mapmost-webgl-transformControls.js"></script>
    <link rel="stylesheet" href="https://delivery.mapmost.com/cdn/sdk/plugins/mapmost-webgl-transformControls/v2.0.0/mapmost-webgl-transformControls.css">
</head>
<body>
<div id="map"></div>
<script>
    let map = new mapmost.Map({
        container: 'map',  
        style: "<your style url>", 
        center: [120.74603465203592, 31.30605899929158], 
        zoom: 16.810035105070947, 
        pitch: 59.48725112156901, 
        bearing: -54.10626584095007,
        userId: '***', // 授权码 
        env3D: {
            exposure: 1,
            envMap: '../example_data/hdr/WhiteBG_Ref_1K.hdr'
        }
    });

    let modelLayer;
    let model
    map.on('load', function () {
        let models_obj = ["../example_data/Olympic.glb"].map(item => ({
            type: 'glb',
            url: item
        }));

        let options = {
            id: 'model_id',
            type: 'model',
            models: models_obj,
            center: [120.74603465203592, 31.30605899929158, 0.0],
            callback: function (group, layer) {
                modelLayer = layer;
                let model = group.children[0]; // group 为模型对象组，group.children[0] 对应单个的 glb 模型文件
                new window.MapmostTransformControls(model, layer);
            }
        };
        map.addLayer(options);
        
        map.on('click', function () {
            modelLayer.exportModel(model);
        })
    })
</script>
</body>
</html>