Add multiple geometries from one GeoJSON source
This example uses addSource to add one GeoJSON source to a map. The source contains both polygon and point features.
Then it uses addLayer to add one fill layer, which will render the polygons, and one circle layer, which will render the points, to the map.
<!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">
<link href="https://api.mapbox.com/mapbox-gl-js/v3.8.0/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v3.8.0/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
const map = new mapboxgl.Map({
container: 'map',
// Choose from Mapbox's core styles, or make your own style with Mapbox Studio
style: 'mapbox://styles/mapbox/outdoors-v12',
center: [-121.403732, 40.492392],
zoom: 10
});
map.on('load', () => {
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],
[-121.32687, 40.423768],
[-121.360619, 40.43479],
[-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, 40.56319],
[-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>
このコードスニペットは、
YOUR_MAPBOX_ACCESS_TOKENをあなたのMapboxアカウントのアクセストークンに置き換えるまで、期待通りに動作しません。import React, { useEffect, useRef } from 'react';
import mapboxgl from 'mapbox-gl';
import 'mapbox-gl/dist/mapbox-gl.css';
const MapboxExample = () => {
const mapContainerRef = useRef();
const mapRef = useRef();
useEffect(() => {
// TO MAKE THE MAP APPEAR YOU MUST
// ADD YOUR ACCESS TOKEN FROM
// https://account.mapbox.com
mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
mapRef.current = new mapboxgl.Map({
container: mapContainerRef.current,
// Choose from Mapbox's core styles, or make your own style with Mapbox Studio
style: 'mapbox://styles/mapbox/outdoors-v12',
center: [-121.403732, 40.492392],
zoom: 10
});
mapRef.current.on('load', () => {
mapRef.current.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],
[-121.32687, 40.423768],
[-121.360619, 40.43479],
[-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, 40.56319],
[-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]
}
}
]
}
});
mapRef.current.addLayer({
id: 'park-boundary',
type: 'fill',
source: 'national-park',
paint: {
'fill-color': '#888888',
'fill-opacity': 0.4
},
filter: ['==', '$type', 'Polygon']
});
mapRef.current.addLayer({
id: 'park-volcanoes',
type: 'circle',
source: 'national-park',
paint: {
'circle-radius': 6,
'circle-color': '#B42222'
},
filter: ['==', '$type', 'Point']
});
});
}, []);
return <div id="map" ref={mapContainerRef} style={{ height: '100%' }} />;
};
export default MapboxExample;
このコードスニペットは、
YOUR_MAPBOX_ACCESS_TOKENをあなたのMapboxアカウントのアクセストークンに置き換えるまで、期待通りに動作しません。このexampleは役に立ちましたか？