Created
February 6, 2018 15:53
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Leaflet with a WMS overlay
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| <!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/[email protected]/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/[email protected]/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> | |
| <script src="https://cdn.rawgit.com/heigeo/leaflet.wms/gh-pages/dist/leaflet.wms.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) | |
| var cbs_cars = L.WMS.overlay('http://geodata.nationaalgeoregister.nl/wijkenbuurten2014/wms', { | |
| 'layers': 'cbs_buurten_2014', | |
| 'styles': 'wijkenbuurten_thema_buurten_gemeentewijkbuurt_gemiddeld_aantal_autos_per_huishouden', | |
| 'srs': 'EPSG:28992', | |
| 'format': 'image/png' | |
| }).addTo(map); | |
| </script> | |
| </body> | |
| </html> | |
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