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emacgillavry/index.html

Last active February 27, 2018 19:48
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BRT-Achtergrondkaart (RD) in OpenLayers 4
Raw
index.html
<!doctype html>
<html lang="nl">
<head>
<meta charset="utf-8">
<title>BRT-Achtergrondkaart (WMTS) in OpenLayers</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="initial-scale=1,user-scalable=no,maximum-scale=1,width=device-width">
<meta name="author" content="Edward Mac Gillavry">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/openlayers/4.6.4/ol.css">
<link rel="stylesheet" href="main.css">
<script src="https://cdn.polyfill.io/v2/polyfill.min.js?features=requestAnimationFrame,Element.prototype.classList,URL"></script>
</head>
<body>
<div id="map-canvas" class="map"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/openlayers/4.6.4/ol.js"></script>
<script src="main.js"></script>
</body>
</html>
Raw
main.css
html, body, #map-canvas {
margin: 0;
padding: 0;
height: 100%;
}
#map-canvas {
width: 100%;
background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAMAAABhq6zVAAAACVBMVEUAAADl5eX////EwbxGAAAAAXRSTlMAQObYZgAAABFJREFUeAFjYESCKACdT38ZAAWhAAxcPQc7AAAAAElFTkSuQmCC) repeat scroll 0 0 #f9f9f9;
}
Raw
main.js
// Geldigheidsgebied van het tiling schema in RD-coördinaten:
var projectionExtent = [-285401.92, 22598.08, 595401.9199999999, 903401.9199999999];
var projection = new ol.proj.Projection({ code: 'EPSG:28992', units: 'm', extent: projectionExtent });
// Resoluties (pixels per meter) van de zoomniveaus:
var 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];
var size = ol.extent.getWidth(projectionExtent) / 256;
// Er zijn 15 (0 tot 14) zoomniveaus beschikbaar van de WMTS-service voor de BRT-Achtergrondkaart:
var matrixIds = new Array(15);
for (var z = 0; z < 15; ++z) {
matrixIds[z] = 'EPSG:28992:' + z;
}
var map = new ol.Map({
layers: [
new ol.layer.Tile({
opacity: 0.7,
source: new ol.source.WMTS({
attributions: 'Kaartgegevens: &copy; <a href="https://www.kadaster.nl">Kadaster</a>',
url: 'https://geodata.nationaalgeoregister.nl/tiles/service/wmts?',
layer: 'brtachtergrondkaart',
matrixSet: 'EPSG:28992',
format: 'image/png',
projection: projection,
tileGrid: new ol.tilegrid.WMTS({
origin: ol.extent.getTopLeft(projectionExtent),
resolutions: resolutions,
matrixIds: matrixIds
}),
style: 'default',
wrapX: false
})
})
],
target: 'map-canvas',
controls: ol.control.defaults({
attributionOptions: {
collapsible: false
}
}),
view: new ol.View({
minZoom: 0,
maxZoom: 15,
projection: projection,
center: [150000, 450000],
zoom: 3
})
});
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