Mapbox GL JS #005 – ポリゴンを表示

ポリゴンを表示するメモ。

script.js

// MIERUNE MONO読み込み
var map = new mapboxgl.Map({
    container: "map",
    style: {
        "version": 8,
        "sources": {
            "MIERUNEMAP": {
                "type": "raster",
                "tiles": ['https://tile.mierune.co.jp/mierune_mono/{z}/{x}/{y}.png'],
                "tileSize": 256
            }
        },
        "layers": [{
            "id": "MIERUNEMAP",
            "type": "raster",
            "source": "MIERUNEMAP",
            "minzoom": 0,
            "maxzoom": 18
        }]
    },
    center: [139.767, 35.681],
    zoom: 11
});

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

    // ポリゴン設定
    map.addSource('polygon_sample', {
        type: 'geojson',
        data: {
            "type": "Feature",
            "geometry": {
                "type": "Polygon",
                "coordinates": [[
                    [139.76617813110352,35.675949251235025],
                    [139.77188587188718,35.67410157813001],
                    [139.77227210998535,35.67455478492641],
                    [139.77862358093262,35.683757812281115],
                    [139.77343082427979,35.68431553740134],
                    [139.77094173431396,35.68469897115985],
                    [139.76871013641357,35.679923346539084],
                    [139.76617813110352,35.675949251235025]
                ]]
            }
        }
    });

    // スタイル設定
    map.addLayer({
        "id": "polygon_sample",
        "type": "fill",
        "source": "polygon_sample",
        "layout": {},
        "paint": {
            'fill-color': '#E92D63',
            'fill-opacity': 0.4
        }
    });

});

// コントロール関係表示
map.addControl(new mapboxgl.NavigationControl());

Mapbox GL JSを手軽に始めるビルド環境公開しています。
mapboxgljs-starter

• 参考文献
  Mapbox GL JS