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Sample Leaflet with GeoJSON
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<html> | |
<head> | |
<title>A Leaflet map!</title> | |
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css" integrity="sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A==" crossorigin="" /> | |
<script src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js" integrity="sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA==" crossorigin=""></script> | |
<style> | |
#map{ height: 100% } | |
</style> | |
</head> | |
<body> | |
<div id="map"></div> | |
<script> | |
// initialize the map | |
var map = L.map('map').setView([42.35, -71.08], 3); | |
// load a tile layer | |
L.tileLayer('http://tiles.mapc.org/basemap/{z}/{x}/{y}.png', | |
{ | |
attribution: 'Tiles by <a href="http://mapc.org">MAPC</a>, Data by <a href="http://mass.gov/mgis">MassGIS</a>', | |
maxZoom: 17, | |
minZoom: 9 | |
}).addTo(map); | |
// load GeoJSON from an external file | |
fetch("countries.geojson").then(res => res.json()).then(data => { | |
// add GeoJSON layer to the map once the file is loaded | |
L.geoJson(data).addTo(map); | |
}); | |
</script> | |
</body> | |
</html> |
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