Question

参考mapbox-gl-js的这个例子...... https://www.mapbox.com/mapbox-gl-js/example/3d-extrusion-floorplan/

当我用我的api键运行这个示例代码时，我只能将地图集中在＆＃34; Field Museum of Natural History＆＃34;没有挤压的墙壁。我在这里错过了什么？其他例子似乎直接用于复制粘贴。

<!DOCTYPE html>
<html>
<head>
    <meta charset='utf-8' />
    <title></title>
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.32.1/mapbox-gl.js'></script>
    <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.32.1/mapbox-gl.css' rel='stylesheet' />
    <style>
        body { margin:0; padding:0; }
        #map { position:absolute; top:0; bottom:0; width:100%; }
    </style>
</head>
<body>

<div id='map'>
</div>
<script>
mapboxgl.accessToken = 'pk.eyJ1IjoiYWtpbmh3YW4iLCJhIjoiY2lwNGYxNDhlMDAwcnZsbTVnY3R0eXo3ZSJ9.XED4AbQBkX8E9qqnwplnWw';
var map = new mapboxgl.Map({
    container: 'map',
    style: 'mapbox://styles/mapbox/streets-v9',
    center: [-87.61694, 41.86625],
    zoom: 15.99,
    pitch: 40,
    bearing: 20
});

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

    map.addLayer({
        'id': 'room-extrusion',
        'type': 'fill-extrusion',
        'source': {
            // Geojson Data source used in vector tiles, documented at
            // https://gist.github.com/ryanbaumann/a7d970386ce59d11c16278b90dde094d
            'type': 'geojson',
            'data': 'https://www.mapbox.com/mapbox-gl-js/assets/data/indoor-3d-map.geojson'
        },
        'paint': {
            // See the Mapbox Style Spec for details on property functions
            // https://www.mapbox.com/mapbox-gl-style-spec/#types-function
            'fill-extrusion-color': {
                // Get the fill-extrusion-color from the source 'color' property.
                'property': 'color',
                'type': 'identity'
            },
            'fill-extrusion-height': {
                // Get fill-extrusion-height from the source 'height' property.
                'property': 'height',
                'type': 'identity'
            },
            'fill-extrusion-base': {
                // Get fill-extrusion-base from the source 'base_height' property.
                'property': 'base_height',
                'type': 'identity'
            },
            // Make extrusions slightly opaque for see through indoor walls.
            'fill-extrusion-opacity': 0.5
        }
    });
});
</script>

</body>
</html>

感谢大家的帮助

Answer 1

此示例有一个CORS问题

    Error in mutate_impl(.data, dots) : 
  Evaluation error: no slot of name "group" for this object of class "derivedDefaultMethod".

一个简单的解决方法是从github gist下载geojson并将其保存在本地与.html文件相同的目录中。然后，您可以将其添加为地图框图层源，例如：

Failed to load file:///mapbox-gl-js/assets/indoor-3d-map.geojson: Cross origin requests are only supported for protocol schemes:

Answer 2

因为您的数据和代码不在同一个域名中。您可以构建服务器，然后发布数据和代码。你可以做到。

用于3D室内地图的挤出多边形...在Mapbox中

2 个答案: