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@hpfast
Created Feb 6, 2018
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Leaflet with a basemap in EPSG:28992
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>A basic map with Leaflet</title>
<!--add Leaflet CSS-->
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.3.1/dist/leaflet.css"
integrity="sha512-Rksm5RenBEKSKFjgI3a41vrjkw4EVPlJ3+OiI65vTjIdo9brlAacEuKOiQ5OFh7cOI1bkDwLqdLw3Zg0cRJAAQ=="
crossorigin=""/>
<!--our own style rules-->
<style type="text/css">
body, html {
height: 90%;
}
#map-container {
height: 100%;
}
</style>
</head>
<body>
<!--The div in which the map will be created-->
<div id="map-container"></div>
<!--load leaflet.js-->
<script src="https://unpkg.com/leaflet@1.3.1/dist/leaflet.js"
integrity="sha512-/Nsx9X4HebavoBvEBuyp3I7od5tA0UzAxs+j83KgC8PU0kgB4XiK4Lfe4y4cgBtaRJQEIFCW+oC506aPT2L1zw=="
crossorigin=""></script>
<!--code we need to use a different projection-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.4.4/proj4.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4leaflet/1.0.2/proj4leaflet.min.js"></script>
<!--our own code to create the map-->
<script>
//define the custom projection tileset (Amersfoort/RD)
var RD = new L.Proj.CRS( 'EPSG:28992','+proj=sterea +lat_0=52.15616055555555 +lon_0=5.38763888888889 +k=0.9999079 +x_0=155000 +y_0=463000 +ellps=bessel +units=m +towgs84=565.2369,50.0087,465.658,-0.406857330322398,0.350732676542563,-1.8703473836068,4.0812 +no_defs', {
resolutions: [3440.640, 1720.320, 860.160, 430.080, 215.040, 107.520, 53.760, 26.880, 13.440, 6.720, 3.360, 1.680, 0.840, 0.420, 0.210],
bounds: L.bounds([-285401.92, 22598.08], [595401.9199999999, 903401.9199999999]),
origin: [-285401.92, 22598.08]
}
);
//initialize the map with our coordinate reference system
let map = L.map('map-container', {
crs: RD
});
//map view still gets set with Latitude/Longitude,
//but the zoomlevel is now different (it uses the resolutions defined in our projection tileset above)
map.setView([52.268, 4.998], 3) ;
//add background layer in custom projection
let bglayer_BRTAchtergrondkaart = new L.TileLayer('http://geodata.nationaalgeoregister.nl/tiles/service/tms/1.0.0/brtachtergrondkaartgrijs/EPSG:28992/{z}/{x}/{y}.png', {
minZoom: 0,
maxZoom: 13,
tms: true,
attribution: 'Map data: <a href="http://www.kadaster.nl">Kadaster</a>'
});
bglayer_BRTAchtergrondkaart.addTo(map)
</script>
</body>
</html>
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