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 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" /><script src="https://api.mapbox.com/mapbox-gl-js/v1.6.1/mapbox-gl.js"></script><link href="https://api.mapbox.com/mapbox-gl-js/v1.6.1/mapbox-gl.css" rel="stylesheet" /><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/v4.4.2/mapbox-gl-geocoder.min.js"></script><linkrel="stylesheet"href="https://api.mapbox.com/mapbox-gl-js/plugins/mapbox-gl-geocoder/v4.4.2/mapbox-gl-geocoder.css"type="text/css"/><!-- Promise polyfill script required to use Mapbox GL Geocoder in IE 11 --><script src="https://cdn.jsdelivr.net/npm/es6-promise@4/dist/es6-promise.min.js"></script><script src="https://cdn.jsdelivr.net/npm/es6-promise@4/dist/es6-promise.auto.min.js"></script><div id="map"></div> <script> mapboxgl.accessToken = '<your access token here>';var map = new mapboxgl.Map({container: 'map',style: 'mapbox://styles/mapbox/streets-v11',center: [-87.6244, 41.8756],zoom: 13}); var customData = {'features': [{'type': 'Feature','properties': {'title': 'Lincoln Park','description':'A northside park that is home to the Lincoln Park Zoo'},'geometry': {'coordinates': [-87.637596, 41.940403],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Burnham Park','description': "A lakefront park on Chicago's south side"},'geometry': {'coordinates': [-87.603735, 41.829985],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Millennium Park','description':'A downtown park known for its art installations and unique architecture'},'geometry': {'coordinates': [-87.622554, 41.882534],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Grant Park','description':"A downtown park that is the site of many of Chicago's favorite festivals and events"},'geometry': {'coordinates': [-87.619185, 41.876367],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Humboldt Park','description': "A large park on Chicago's northwest side"},'geometry': {'coordinates': [-87.70199, 41.905423],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Douglas Park','description':"A large park near in Chicago's North Lawndale neighborhood"},'geometry': {'coordinates': [-87.699329, 41.860092],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Calumet Park','description':'A park on the Illinois-Indiana border featuring a historic fieldhouse'},'geometry': {'coordinates': [-87.530221, 41.715515],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Jackson Park','description':"A lakeside park that was the site of the 1893 World's Fair"},'geometry': {'coordinates': [-87.580389, 41.783185],'type': 'Point'}},{'type': 'Feature','properties': {'title': 'Columbus Park','description':"A large park in Chicago's Austin neighborhood"},'geometry': {'coordinates': [-87.769775, 41.873683],'type': 'Point'}}],'type': 'FeatureCollection'}; function forwardGeocoder(query) {var matchingFeatures = [];for (var i = 0; i < customData.features.length; i++) {var feature = customData.features[i];// handle queries with different capitalization than the source data by calling toLowerCase()if (feature.properties.title.toLowerCase().search(query.toLowerCase()) !== -1) {// add a tree emoji as a prefix for custom data results// using carmen geojson format: https://github.com/mapbox/carmen/blob/master/carmen-geojson.mdfeature['place_name'] = '🌲 ' + feature.properties.title;feature['center'] = feature.geometry.coordinates;feature['place_type'] = ['park'];matchingFeatures.push(feature);}}return matchingFeatures;} map.addControl(new MapboxGeocoder({accessToken: mapboxgl.accessToken,localGeocoder: forwardGeocoder,zoom: 14,placeholder: 'Enter search e.g. Lincoln Park',mapboxgl: mapboxgl}));</script> </body></html>