Files
openlayers/wmts-hidpi/examples/wmts-hidpi.js
2014-05-06 13:02:46 -05:00

68 lines
2.1 KiB
JavaScript

var template = '{TileMatrix}/{TileRow}/{TileCol}.jpeg';
var urls = [
'http://maps1.wien.gv.at/basemap/bmaphidpi/normal/google3857/' + template,
'http://maps2.wien.gv.at/basemap/bmaphidpi/normal/google3857/' + template,
'http://maps3.wien.gv.at/basemap/bmaphidpi/normal/google3857/' + template,
'http://maps4.wien.gv.at/basemap/bmaphidpi/normal/google3857/' + template,
'http://maps.wien.gv.at/basemap/bmaphidpi/normal/google3857/' + template
];
var source = new ol.source.TileImage({
extent: [977844.377599999, 5837774.6617, 1915609.8654, 6295560.8122],
pixelRatios: [2],
requestEncoding: 'REST',
tileGrid: new ol.tilegrid.WMTS({
origin: [-20037508.3428, 20037508.3428],
resolutions: [
559082264.029 * 0.28E-3,
279541132.015 * 0.28E-3,
139770566.007 * 0.28E-3,
69885283.0036 * 0.28E-3,
34942641.5018 * 0.28E-3,
17471320.7509 * 0.28E-3,
8735660.37545 * 0.28E-3,
4367830.18773 * 0.28E-3,
2183915.09386 * 0.28E-3,
1091957.54693 * 0.28E-3,
545978.773466 * 0.28E-3,
272989.386733 * 0.28E-3,
136494.693366 * 0.28E-3,
68247.3466832 * 0.28E-3,
34123.6733416 * 0.28E-3,
17061.8366708 * 0.28E-3,
8530.91833540 * 0.28E-3,
4265.45916770 * 0.28E-3,
2132.72958385 * 0.28E-3,
1066.36479193 * 0.28E-3
],
matrixIds: [
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19
],
tileSize: 256
}),
tileUrlFunction: function(tileCoord, pixelRatio, projection) {
if (tileCoord) {
var zxy = tileCoord.getZXY();
var index = ((zxy[1] << zxy[0]) + zxy[2]) % urls.length;
return urls[index < 0 ? index + urls.length : index]
.replace('{TileMatrix}', zxy[0])
.replace('{TileRow}', -zxy[2] - 1)
.replace('{TileCol}', zxy[1]);
}
}
});
var map = new ol.Map({
layers: [
new ol.layer.Tile({
source: source
})
],
renderer: exampleNS.getRendererFromQueryString(['canvas', 'dom']),
target: 'map',
view: new ol.View2D({
center: [1823849, 6143760],
zoom: 11
})
});