Add tilePixelRatio option to ol.source.XYZ
This commit is contained in:
Petr Pridal
committed by
Éric Lemoine
Éric Lemoine
parent
aafa578805
commit
1a933febcd
@@ -0,0 +1,52 @@
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="chrome=1">
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<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
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<link rel="stylesheet" href="../css/ol.css" type="text/css">
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<link rel="stylesheet" href="../resources/bootstrap/css/bootstrap.min.css" type="text/css">
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<link rel="stylesheet" href="../resources/layout.css" type="text/css">
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<link rel="stylesheet" href="../resources/bootstrap/css/bootstrap-responsive.min.css" type="text/css">
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<title>XYZ Retina tiles example</title>
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</head>
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<body>
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<div class="navbar navbar-inverse navbar-fixed-top">
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<div class="navbar-inner">
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<div class="container">
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<a class="brand" href="./"><img src="../resources/logo.png"> OpenLayers 3 Examples</a>
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</div>
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</div>
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</div>
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<div class="container-fluid">
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<div class="row-fluid">
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<div class="span12">
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<div id="map" class="map"></div>
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</div>
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</div>
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<div class="row-fluid">
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<div class="span12">
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<h4 id="title">XYZ with Retina tiles example</h4>
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<p id="shortdesc">Example of Retina / HiDPI mercator tiles (512x512px) available as XYZ.</p>
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<div id="docs">
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<p>The ol.source.XYZ must contain <code>tilePixelRatio</code> parameter. The tiles were prepared from a GeoTIFF file with <a href="http://www.maptiler.com/">MapTiler</a>.</p>
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<p>See the <a href="xyz-retina.js" target="_blank">xyz-retina.js source</a> for details on how this is done.</p>
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</div>
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<div id="tags">retina, hidpi, xyz, maptiler, @2x, devicePixelRatio</div>
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</div>
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</div>
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</div>
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<script src="jquery.min.js" type="text/javascript"></script>
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<script src="../resources/example-behaviour.js" type="text/javascript"></script>
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<script src="loader.js?id=xyz-retina" type="text/javascript"></script>
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</body>
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</html>
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@@ -0,0 +1,41 @@
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goog.require('ol.Attribution');
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goog.require('ol.Map');
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goog.require('ol.View');
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goog.require('ol.layer.Tile');
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goog.require('ol.proj');
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goog.require('ol.source.OSM');
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goog.require('ol.source.XYZ');
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var attribution = new ol.Attribution({
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html: 'Tiles rendered with <a href="http://www.maptiler.com/"> © USGS'
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});
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var mapMinZoom = 1;
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var mapMaxZoom = 15;
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var mapExtent = [-112.261791, 35.983744, -112.113981, 36.132062];
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var map = new ol.Map({
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target: 'map',
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layers: [
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new ol.layer.Tile({
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source: new ol.source.OSM()
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}),
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new ol.layer.Tile({
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source: new ol.source.XYZ({
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url: 'http://tileserver.maptiler.com/grandcanyon@2x/{z}/{x}/{y}.png',
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tilePixelRatio: 2, // THIS IS IMPORTANT
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maxExtent: ol.proj.transformExtent(
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mapExtent, 'EPSG:4326', 'EPSG:3857'),
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minZoom: mapMinZoom,
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maxZoom: mapMaxZoom
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})
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})
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],
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view: new ol.View({
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projection: 'EPSG:3857',
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center: ol.proj.transform([-112.18688965, 36.057944835],
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'EPSG:4326', 'EPSG:3857'),
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zoom: 12
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})
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});
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@@ -4357,6 +4357,7 @@ olx.source.WMTSOptions.prototype.urls;
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* maxZoom: (number|undefined),
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* maxZoom: (number|undefined),
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* minZoom: (number|undefined),
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* minZoom: (number|undefined),
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* tileLoadFunction: (ol.TileLoadFunctionType|undefined),
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* tileLoadFunction: (ol.TileLoadFunctionType|undefined),
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* tilePixelRatio: (number|undefined),
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* tileUrlFunction: (ol.TileUrlFunctionType|undefined),
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* tileUrlFunction: (ol.TileUrlFunctionType|undefined),
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* url: (string|undefined),
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* url: (string|undefined),
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* urls: (Array.<string>|undefined),
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* urls: (Array.<string>|undefined),
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@@ -4422,6 +4423,16 @@ olx.source.XYZOptions.prototype.minZoom;
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olx.source.XYZOptions.prototype.tileLoadFunction;
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olx.source.XYZOptions.prototype.tileLoadFunction;
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/**
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* The pixel ratio used by the tile service. For example, if the tile
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* service advertizes 256px by 256px tiles but actually sends 512px
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* by 512px images (for retina/hidpi devices) then `tilePixelRatio`
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* should be set to `2`. Default is `1`.
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* @type {number|undefined}
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*/
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olx.source.XYZOptions.prototype.tilePixelRatio;
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/**
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/**
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* Optional function to get tile URL given a tile coordinate and the projection.
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* Optional function to get tile URL given a tile coordinate and the projection.
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* Required if url or urls are not provided.
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* Required if url or urls are not provided.
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@@ -35,6 +35,7 @@ ol.source.XYZ = function(options) {
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projection: projection,
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projection: projection,
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tileGrid: tileGrid,
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tileGrid: tileGrid,
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tileLoadFunction: options.tileLoadFunction,
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tileLoadFunction: options.tileLoadFunction,
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tilePixelRatio: options.tilePixelRatio,
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tileUrlFunction: ol.TileUrlFunction.nullTileUrlFunction
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tileUrlFunction: ol.TileUrlFunction.nullTileUrlFunction
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});
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});
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