TopoJSON data

Loading and parsing TopoJSON data with Leaflet-Omnivore

<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>TopoJSON data</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.mapbox.com/mapbox.js/v3.1.1/mapbox.js'></script>
<link href='https://api.mapbox.com/mapbox.js/v3.1.1/mapbox.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.js/plugins/leaflet-omnivore/v0.2.0/leaflet-omnivore.min.js'></script>

<div id='map'></div>

<script>
L.mapbox.accessToken = '<your access token here>';
var map = L.mapbox.map('map', 'mapbox.streets').setView([40, -80], 5);

// Omnivore will AJAX-request this file behind the scenes and parse it:
// note that there are considerations:
// - The file must either be on the same domain as the page that requests it,
//   or both the server it is requested from and the user's browser must
//   support CORS.

// Internally this function uses the TopoJSON library to decode the given file
// into GeoJSON.
var usLayer = omnivore.topojson('/mapbox.js/assets/data/world-110m.json')
    .addTo(map);
</script>
to create your own custom map and use it in this example.
Use this example by copying its source into your own HTML page and replacing the Map ID with one of your own from your projects. Having trouble with JavaScript? Try out Codecademy or contact our support team.
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