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版本：9.0.0

三维模型特效

添加三维模型特效，要求模型为Y轴朝上。

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<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8"/>
    <title>三维模型特效</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/v9.0.0/mapmost-webgl-min.js"></script>
</head>

<body>
<div id="map"></div>
<script>
    let map = new mapmost.Map({
        container: 'map',  
        style: "<your style url>", 
        center: [120.71755968678801, 31.32662823446909], 
        zoom: 15, 
        pitch: 60, 
        bearing: 0, 
        userId: '***', // 授权码,
        env3D:{
            envMap:'../example_data/hdr/WhiteBG_Ref_1K.hdr',
            exposure: 0.9,
        }
    });

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

        let options = {
            id: 'model_id',
            type: 'model',
            models: models_obj,
            project: "3857",
            center: [120.71755968678801, 31.32662823446909, 0],
            callback: function (group, layer) {

                layer.addModelEffect(group, [
                    {
                        type: "gradient",
                        startColor: "#83afff",
                        endColor: "#FFFFFF",
                        percent: 0.2
                    }
                    , {
                        type: "flow",
                        speed: 1,
                        color: "#339bf6",
                        percent: 0.05
                    }
                ])

            }
        };
        map.addLayer(options);
    })
</script>
</body>
</html>