別のデータソースからフォワードジオコーディング検索結果を取得 | Mapbox GL JS | ドキュメント

Mapbox Geocoding APIのmapbox-gl-geocoderコントロール機能を使って場所を検索し、ローカルデータソースまたは関数からの結果を補完します。この場合はテキスト入力とシカゴパークの名前を一致させます。

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>別のデータソースからフォワードジオコーディング検索結果を取得</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<link href="https://api.mapbox.com/mapbox-gl-js/v2.14.1/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v2.14.1/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<script src="https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-geocoder/v4.7.2/mapbox-gl-geocoder.min.js"></script>
<link rel="stylesheet" href="https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-geocoder/v4.7.2/mapbox-gl-geocoder.css" type="text/css">
 
<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',
style: 'mapbox://styles/mapbox/dark-v10',
center: [-87.6244, 41.8756],
zoom: 13
});
 
// Load custom data to supplement the search results.
const customData = {
'features': [
{
'type': 'Feature',
'properties': {
'title': 'Lincoln Park is special'
},
'geometry': {
'coordinates': [-87.637596, 41.940403],
'type': 'Point'
}
},
{
'type': 'Feature',
'properties': {
'title': 'Burnham Park is special'
},
'geometry': {
'coordinates': [-87.603735, 41.829985],
'type': 'Point'
}
},
{
'type': 'Feature',
'properties': {
'title': 'Millennium Park is special'
},
'geometry': {
'coordinates': [-87.622554, 41.882534],
'type': 'Point'
}
}
],
'type': 'FeatureCollection'
};
 
function forwardGeocoder(query) {
const matchingFeatures = [];
for (const feature of customData.features) {
// Handle queries with different capitalization
// than the source data by calling toLowerCase().
if (
feature.properties.title
.toLowerCase()
.includes(query.toLowerCase())
) {
// Add a tree emoji as a prefix for custom
// data results using carmen geojson format:
// https://github.com/mapbox/carmen/blob/master/carmen-geojson.md
feature['place_name'] = `🌲 ${feature.properties.title}`;
feature['center'] = feature.geometry.coordinates;
feature['place_type'] = ['park'];
matchingFeatures.push(feature);
}
}
return matchingFeatures;
}
 
// Add the control to the map.
map.addControl(
new MapboxGeocoder({
accessToken: mapboxgl.accessToken,
localGeocoder: forwardGeocoder,
zoom: 14,
placeholder: 'Enter search e.g. Lincoln Park',
mapboxgl: mapboxgl
})
);
</script>
 
</body>
</html>