Skip to content

Add a GeoJSON polygon

Add a GeoJSON polygon to your map and style it.

<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8" />        
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <script src="https://cdn.smartmaps.cloud/packages/smartmaps/smartmaps-gl/v2/umd/smartmaps-gl.min.js"></script>
        <style>
            body {
                margin: 0;
                padding: 0;
            }

            html,
            body,
            #map {
                height: 100%;
            }
        </style>
    </head>

    <body>
        <div id="map"></div>
        <script>
            const map = new smartmapsgl.Map({
                apiKey: "INSERT API-KEY",
                container: "map",
                center: [-68.13734351262877, 45.137451890638886],
                zoom: 5,
                style: "essential",
            });

            map.on("load", () => {
                map.addSource("maine", {
                    type: "geojson",
                    data: {
                        type: "Feature",
                        geometry: {
                            type: "Polygon",
                            coordinates: [
                                [
                                    [-67.13734351262877, 45.137451890638886],
                                    [-66.96466, 44.8097],
                                    [-68.03252, 44.3252],
                                    [-69.06, 43.98],
                                    [-70.11617, 43.68405],
                                    [-70.64573401557249, 43.090083319667144],
                                    [-70.75102474636725, 43.08003225358635],
                                    [-70.79761105007827, 43.21973948828747],
                                    [-70.98176001655037, 43.36789581966826],
                                    [-70.94416541205806, 43.46633942318431],
                                    [-71.08482, 45.3052400000002],
                                    [-70.6600225491012, 45.46022288673396],
                                    [-70.30495378282376, 45.914794623389355],
                                    [-70.00014034695016, 46.69317088478567],
                                    [-69.23708614772835, 47.44777598732787],
                                    [-68.90478084987546, 47.184794623394396],
                                    [-68.23430497910454, 47.35462921812177],
                                    [-67.79035274928509, 47.066248887716995],
                                    [-67.79141211614706, 45.702585354182816],
                                    [-67.13734351262877, 45.137451890638886],
                                ],
                            ],
                        },
                    },
                });
                map.addLayer({
                    id: "maine",
                    type: "fill",
                    source: "maine",
                    layout: {},
                    paint: {
                        "fill-color": "#088",
                        "fill-opacity": 0.8,
                    },
                });
            });
        </script>
    </body>
</html>