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一个geojson文件加载多种要素.html
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一个geojson文件加载多种要素.html
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<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title>Add multiple geometries from one GeoJSON source</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.46.0/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.46.0/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.eyJ1IjoieWFuY29uZ3dlbiIsImEiOiJjaml4eWgxMnowNHY0M3BvMW96cDI1bWJ6In0.QA-bmCCquo-mziBfZ8KOIQ';
var map = new mapboxgl.Map({
container: "map",
style: "mapbox://styles/mapbox/outdoors-v9",
center: [-121.403732, 40.492392],
zoom: 10
});
map.on("load", function() {
map.addSource("national-park", {
"type": "geojson",
"data": {
"type": "FeatureCollection",
"features": [{
"type": "Feature",
"geometry": {
"type": "Polygon",
"coordinates": [
[
[-121.353637, 40.584978],
[-121.284551, 40.584758],
[-121.275349, 40.541646],
[-121.246768, 40.541017],
[-121.251343, 40.423383],
[-121.326870, 40.423768],
[-121.360619, 40.434790],
[-121.363694, 40.409124],
[-121.439713, 40.409197],
[-121.439711, 40.423791],
[-121.572133, 40.423548],
[-121.577415, 40.550766],
[-121.539486, 40.558107],
[-121.520284, 40.572459],
[-121.487219, 40.550822],
[-121.446951, 40.563190],
[-121.370644, 40.563267],
[-121.353637, 40.584978]
]
]
}
}, {
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [-121.415061, 40.506229]
}
}, {
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [-121.505184, 40.488084]
}
}, {
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [-121.354465, 40.488737]
}
}]
}
});
map.addLayer({
"id": "park-boundary",
"type": "fill",
"source": "national-park",
"paint": {
"fill-color": "#888888",
"fill-opacity": 0.4
},
"filter": ["==", "$type", "Polygon"]
});
map.addLayer({
"id": "park-volcanoes",
"type": "circle",
"source": "national-park",
"paint": {
"circle-radius": 6,
"circle-color": "#B42222"
},
"filter": ["==", "$type", "Point"],
});
});
</script>
</body>
</html>