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版本：9.3.0

三维图层坐标拾取

鼠标点击三维模型，获取交点坐标信息，该接口目前只适用于拾取通过addLayer初始加载的模型、layer.addModel接口加载的模型以及addLines（pipe类型）、addPolygons、addPolygonByLine和addPyramid构建的模型。

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8"/>
    <title>三维坐标拾取</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%;
        }

        #info {
            position: absolute;
            top: 20px;
            left: 20px;
            color: #000000;
            font-weight: bold;
        }
    </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 id="info"></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;

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

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

        let options = {
            id: 'model_id',
            type: 'model',
            models: models_obj,
            center: [120.74603465203592, 31.30605899929158, 6.0],
            callback: function (group, layer) {
                modelLayer = layer;
            }
        };
        map.addLayer(options);

        map.on('click', function (e) {
                let intersect = modelLayer.selectModel(e.point)[0];
                if (intersect && intersect.point) {
                    let coordinate = modelLayer.getIntersectCoordinate(intersect);
                    const info = document.getElementById('info');
                    info.innerText = '坐标：' + coordinate;
                    info.style.display = 'block';
                    modelLayer.addPoints({
                        type: "cube",
                        size: 2,
                        color: 0xff0000,
                        data: [{
                            coordinate: coordinate
                        }]
                    });
                }
            })
    })
</script>
</body>
</html>