MapBox Globe Polar Test

Test polar data on mapbox globe

by fxi

HTML

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Add a polygon to a map using a 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/v2.9.0-beta.1/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v2.9.0-beta.1/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>
	
</script>

</body>
</html>

JavaScript

mapboxgl.accessToken = 'pk.eyJ1IjoiZnJlZGZ4aSIsImEiOiJja2psOTE5YWgwNm1jMnJxcDhmY25qc2gwIn0.VM7P6iTelL_rFnxTkO7LBQ';
const map = new mapboxgl.Map({
  container: 'map',
  style: 'mapbox://styles/mapbox/light-v10',
  center: [0, 90],
  zoom: 2,
  projection: 'globe'
});

const coords = [];
let lat = 90;
let inc = 180 / 360;

for (let lon = -180; lon < 180; lon++) {
  coords.push([lon, lat -= inc])
}


const gj = {
  "type": "FeatureCollection",
  "name": "polar",
  "features": [{
    "type": "Feature",
    "properties": {
      "id": 1
    },
    "geometry": {
      "type": "LineString",
      "coordinates": coords

    }
  }]
}

map.on('load', () => {

  map.addSource('polar', {
    'type': 'geojson',
    'data': gj
  });

  map.addLayer({
    'id': 'polar',
    'type': 'line',
    'source': 'polar',
    'layout': {},
    'paint': {
      'line-color': 'red',
      'line-width': 50
    }
  });


});