Andreas Hocevar
571 lines
18 KiB
HTML
571 lines
18 KiB
HTML
<!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="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" type="text/css">
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" type="text/css">
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<link rel="stylesheet" href="./resources/prism/prism.css" type="text/css">
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<link rel="stylesheet" href="../css/ol.css" type="text/css">
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<link rel="stylesheet" href="./resources/layout.css" type="text/css">
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<script src="./resources/zeroclipboard/ZeroClipboard.min.js"></script>
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<title>Tiled WMS with custom projection example</title>
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</head>
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<body>
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<header class="navbar" role="navigation">
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<div class="container" id="navbar-inner-container">
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<a class="navbar-brand" href="./"><img src="./resources/logo-70x70.png"> OpenLayers 3 Examples</a>
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</div>
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</header>
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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">Tiled WMS with custom projection example</h4>
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<p id="shortdesc">Example of using custom coordinate transform functions.</p>
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<div id="docs"><p>With <code>ol.proj.addCoordinateTransforms()</code>, custom coordinate transform functions can be added to configured projections.</p>
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</div>
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<div id="tags">wms, tile, tilelayer, projection</div>
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<div id="api-links">Related API documentation: <ul class="inline"><li><a href="../apidoc/ol.Attribution.html" title="API documentation for ol.Attribution">ol.Attribution</a></li>,<li><a href="../apidoc/ol.Map.html" title="API documentation for ol.Map">ol.Map</a></li>,<li><a href="../apidoc/ol.View.html" title="API documentation for ol.View">ol.View</a></li>,<li><a href="../apidoc/ol.control.html" title="API documentation for ol.control">ol.control</a></li>,<li><a href="../apidoc/ol.control.ScaleLine.html" title="API documentation for ol.control.ScaleLine">ol.control.ScaleLine</a></li>,<li><a href="../apidoc/ol.layer.Tile.html" title="API documentation for ol.layer.Tile">ol.layer.Tile</a></li>,<li><a href="../apidoc/ol.proj.html" title="API documentation for ol.proj">ol.proj</a></li>,<li><a href="../apidoc/ol.proj.Projection.html" title="API documentation for ol.proj.Projection">ol.proj.Projection</a></li>,<li><a href="../apidoc/ol.source.TileWMS.html" title="API documentation for ol.source.TileWMS">ol.source.TileWMS</a></li></ul></div>
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</div>
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</div>
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<div class="row-fluid">
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<div id="source-controls">
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<a id="copy-button"><i class="fa fa-clipboard"></i> Copy</a>
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<a id="jsfiddle-button"><i class="fa fa-jsfiddle"></i> Edit</a>
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</div>
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<form method="POST" id="jsfiddle-form" target="_blank" action="http://jsfiddle.net/api/post/jquery/1.11.0/">
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<textarea class="hidden" name="js">// By default OpenLayers does not know about the EPSG:21781 (Swiss) projection.
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// So we create a projection instance for EPSG:21781 and pass it to
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// ol.proj.addProjection to make it available to the library for lookup by its
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// code.
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var projection = new ol.proj.Projection({
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code: 'EPSG:21781',
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// The extent is used to determine zoom level 0. Recommended values for a
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// projection's validity extent can be found at http://epsg.io/.
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extent: [485869.5728, 76443.1884, 837076.5648, 299941.7864],
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units: 'm'
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});
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ol.proj.addProjection(projection);
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// We also declare EPSG:21781/EPSG:4326 transform functions. These functions
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// are necessary for the ScaleLine control and when calling ol.proj.transform
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// for setting the view's initial center (see below).
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ol.proj.addCoordinateTransforms('EPSG:4326', projection,
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function(coordinate) {
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return [
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WGStoCHy(coordinate[1], coordinate[0]),
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WGStoCHx(coordinate[1], coordinate[0])
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];
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},
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function(coordinate) {
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return [
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CHtoWGSlng(coordinate[0], coordinate[1]),
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CHtoWGSlat(coordinate[0], coordinate[1])
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];
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});
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var extent = [420000, 30000, 900000, 350000];
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var layers = [
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new ol.layer.Tile({
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extent: extent,
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source: new ol.source.TileWMS({
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url: 'http://wms.geo.admin.ch/',
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crossOrigin: 'anonymous',
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attributions: [new ol.Attribution({
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html: '&copy; ' +
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'<a href="http://www.geo.admin.ch/internet/geoportal/' +
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'en/home.html">' +
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'Pixelmap 1:1000000 / geo.admin.ch</a>'
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})],
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params: {
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'LAYERS': 'ch.swisstopo.pixelkarte-farbe-pk1000.noscale',
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'FORMAT': 'image/jpeg'
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},
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serverType: 'mapserver'
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})
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}),
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new ol.layer.Tile({
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extent: extent,
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source: new ol.source.TileWMS({
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url: 'http://wms.geo.admin.ch/',
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crossOrigin: 'anonymous',
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attributions: [new ol.Attribution({
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html: '&copy; ' +
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'<a href="http://www.geo.admin.ch/internet/geoportal/' +
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'en/home.html">' +
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'National parks / geo.admin.ch</a>'
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})],
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params: {'LAYERS': 'ch.bafu.schutzgebiete-paerke_nationaler_bedeutung'},
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serverType: 'mapserver'
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})
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})
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];
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var map = new ol.Map({
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controls: ol.control.defaults().extend([
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new ol.control.ScaleLine({
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units: 'metric'
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})
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]),
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layers: layers,
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target: 'map',
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view: new ol.View({
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projection: projection,
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center: ol.proj.transform([8.23, 46.86], 'EPSG:4326', 'EPSG:21781'),
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extent: extent,
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zoom: 2
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})
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});
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/*
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* Swiss projection transform functions downloaded from
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* http://www.swisstopo.admin.ch/internet/swisstopo/en/home/products/software/products/skripts.html
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*/
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// Convert WGS lat/long (° dec) to CH y
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function WGStoCHy(lat, lng) {
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// Converts degrees dec to sex
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lat = DECtoSEX(lat);
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lng = DECtoSEX(lng);
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// Converts degrees to seconds (sex)
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lat = DEGtoSEC(lat);
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lng = DEGtoSEC(lng);
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// Axiliary values (% Bern)
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var lat_aux = (lat - 169028.66) / 10000;
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var lng_aux = (lng - 26782.5) / 10000;
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// Process Y
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var y = 600072.37 +
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211455.93 * lng_aux -
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10938.51 * lng_aux * lat_aux -
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0.36 * lng_aux * Math.pow(lat_aux, 2) -
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44.54 * Math.pow(lng_aux, 3);
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return y;
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}
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// Convert WGS lat/long (° dec) to CH x
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function WGStoCHx(lat, lng) {
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// Converts degrees dec to sex
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lat = DECtoSEX(lat);
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lng = DECtoSEX(lng);
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// Converts degrees to seconds (sex)
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lat = DEGtoSEC(lat);
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lng = DEGtoSEC(lng);
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// Axiliary values (% Bern)
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var lat_aux = (lat - 169028.66) / 10000;
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var lng_aux = (lng - 26782.5) / 10000;
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// Process X
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var x = 200147.07 +
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308807.95 * lat_aux +
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3745.25 * Math.pow(lng_aux, 2) +
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76.63 * Math.pow(lat_aux, 2) -
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194.56 * Math.pow(lng_aux, 2) * lat_aux +
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119.79 * Math.pow(lat_aux, 3);
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return x;
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}
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// Convert CH y/x to WGS lat
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function CHtoWGSlat(y, x) {
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// Converts militar to civil and to unit = 1000km
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// Axiliary values (% Bern)
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var y_aux = (y - 600000) / 1000000;
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var x_aux = (x - 200000) / 1000000;
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// Process lat
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var lat = 16.9023892 +
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3.238272 * x_aux -
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0.270978 * Math.pow(y_aux, 2) -
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0.002528 * Math.pow(x_aux, 2) -
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0.0447 * Math.pow(y_aux, 2) * x_aux -
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0.0140 * Math.pow(x_aux, 3);
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// Unit 10000" to 1 " and converts seconds to degrees (dec)
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lat = lat * 100 / 36;
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return lat;
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}
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// Convert CH y/x to WGS long
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function CHtoWGSlng(y, x) {
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// Converts militar to civil and to unit = 1000km
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// Axiliary values (% Bern)
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var y_aux = (y - 600000) / 1000000;
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var x_aux = (x - 200000) / 1000000;
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// Process long
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var lng = 2.6779094 +
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4.728982 * y_aux +
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0.791484 * y_aux * x_aux +
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0.1306 * y_aux * Math.pow(x_aux, 2) -
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0.0436 * Math.pow(y_aux, 3);
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// Unit 10000" to 1 " and converts seconds to degrees (dec)
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lng = lng * 100 / 36;
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return lng;
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}
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// Convert SEX DMS angle to DEC
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function SEXtoDEC(angle) {
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// Extract DMS
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var deg = parseInt(angle, 10);
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var min = parseInt((angle - deg) * 100, 10);
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var sec = (((angle - deg) * 100) - min) * 100;
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// Result in degrees sex (dd.mmss)
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return deg + (sec / 60 + min) / 60;
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}
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// Convert DEC angle to SEX DMS
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function DECtoSEX(angle) {
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// Extract DMS
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var deg = parseInt(angle, 10);
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var min = parseInt((angle - deg) * 60, 10);
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var sec = (((angle - deg) * 60) - min) * 60;
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// Result in degrees sex (dd.mmss)
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return deg + min / 100 + sec / 10000;
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}
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// Convert Degrees angle to seconds
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function DEGtoSEC(angle) {
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// Extract DMS
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var deg = parseInt(angle, 10);
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var min = parseInt((angle - deg) * 100, 10);
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var sec = (((angle - deg) * 100) - min) * 100;
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// Avoid rounding problems with seconds=0
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var parts = String(angle).split('.');
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if (parts.length == 2 && parts[1].length == 2) {
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min = Number(parts[1]);
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sec = 0;
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}
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// Result in degrees sex (dd.mmss)
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return sec + min * 60 + deg * 3600;
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}
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</textarea>
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<textarea class="hidden" name="css"></textarea>
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<textarea class="hidden" name="html"><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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</textarea>
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<input type="hidden" name="wrap" value="l">
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<input type="hidden" name="resources" value="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css,https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js,http://openlayers.org/en/v3.8.2/css/ol.css,http://openlayers.org/en/v3.8.2/build/ol.js">
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</form>
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<pre><code id="example-source" class="language-markup"><!DOCTYPE html>
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<html>
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<head>
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<title>Tiled WMS with custom projection example</title>
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<script src="https://code.jquery.com/jquery-1.11.2.min.js"></script>
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
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<link rel="stylesheet" href="http://openlayers.org/en/v3.8.2/css/ol.css" type="text/css">
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<script src="http://openlayers.org/en/v3.8.2/build/ol.js"></script>
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</head>
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<body>
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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>
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<script>
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// By default OpenLayers does not know about the EPSG:21781 (Swiss) projection.
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// So we create a projection instance for EPSG:21781 and pass it to
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// ol.proj.addProjection to make it available to the library for lookup by its
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// code.
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var projection = new ol.proj.Projection({
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code: 'EPSG:21781',
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// The extent is used to determine zoom level 0. Recommended values for a
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// projection's validity extent can be found at http://epsg.io/.
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extent: [485869.5728, 76443.1884, 837076.5648, 299941.7864],
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units: 'm'
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});
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ol.proj.addProjection(projection);
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// We also declare EPSG:21781/EPSG:4326 transform functions. These functions
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// are necessary for the ScaleLine control and when calling ol.proj.transform
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// for setting the view's initial center (see below).
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ol.proj.addCoordinateTransforms('EPSG:4326', projection,
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function(coordinate) {
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return [
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WGStoCHy(coordinate[1], coordinate[0]),
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WGStoCHx(coordinate[1], coordinate[0])
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];
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},
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function(coordinate) {
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return [
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CHtoWGSlng(coordinate[0], coordinate[1]),
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CHtoWGSlat(coordinate[0], coordinate[1])
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];
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});
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var extent = [420000, 30000, 900000, 350000];
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var layers = [
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new ol.layer.Tile({
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extent: extent,
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source: new ol.source.TileWMS({
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url: 'http://wms.geo.admin.ch/',
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crossOrigin: 'anonymous',
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attributions: [new ol.Attribution({
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html: '&copy; ' +
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'<a href="http://www.geo.admin.ch/internet/geoportal/' +
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'en/home.html">' +
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'Pixelmap 1:1000000 / geo.admin.ch</a>'
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})],
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params: {
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'LAYERS': 'ch.swisstopo.pixelkarte-farbe-pk1000.noscale',
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'FORMAT': 'image/jpeg'
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},
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serverType: 'mapserver'
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})
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}),
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new ol.layer.Tile({
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extent: extent,
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source: new ol.source.TileWMS({
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url: 'http://wms.geo.admin.ch/',
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crossOrigin: 'anonymous',
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attributions: [new ol.Attribution({
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html: '&copy; ' +
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'<a href="http://www.geo.admin.ch/internet/geoportal/' +
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'en/home.html">' +
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'National parks / geo.admin.ch</a>'
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})],
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params: {'LAYERS': 'ch.bafu.schutzgebiete-paerke_nationaler_bedeutung'},
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serverType: 'mapserver'
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})
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})
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];
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var map = new ol.Map({
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controls: ol.control.defaults().extend([
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new ol.control.ScaleLine({
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units: 'metric'
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})
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]),
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layers: layers,
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target: 'map',
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view: new ol.View({
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projection: projection,
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center: ol.proj.transform([8.23, 46.86], 'EPSG:4326', 'EPSG:21781'),
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extent: extent,
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zoom: 2
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})
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});
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/*
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* Swiss projection transform functions downloaded from
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* http://www.swisstopo.admin.ch/internet/swisstopo/en/home/products/software/products/skripts.html
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*/
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// Convert WGS lat/long (° dec) to CH y
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function WGStoCHy(lat, lng) {
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// Converts degrees dec to sex
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lat = DECtoSEX(lat);
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lng = DECtoSEX(lng);
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|
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// Converts degrees to seconds (sex)
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lat = DEGtoSEC(lat);
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lng = DEGtoSEC(lng);
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// Axiliary values (% Bern)
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var lat_aux = (lat - 169028.66) / 10000;
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var lng_aux = (lng - 26782.5) / 10000;
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// Process Y
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var y = 600072.37 +
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211455.93 * lng_aux -
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10938.51 * lng_aux * lat_aux -
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0.36 * lng_aux * Math.pow(lat_aux, 2) -
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44.54 * Math.pow(lng_aux, 3);
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return y;
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}
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// Convert WGS lat/long (° dec) to CH x
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function WGStoCHx(lat, lng) {
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// Converts degrees dec to sex
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lat = DECtoSEX(lat);
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lng = DECtoSEX(lng);
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// Converts degrees to seconds (sex)
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lat = DEGtoSEC(lat);
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lng = DEGtoSEC(lng);
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// Axiliary values (% Bern)
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var lat_aux = (lat - 169028.66) / 10000;
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var lng_aux = (lng - 26782.5) / 10000;
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// Process X
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var x = 200147.07 +
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308807.95 * lat_aux +
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3745.25 * Math.pow(lng_aux, 2) +
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76.63 * Math.pow(lat_aux, 2) -
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194.56 * Math.pow(lng_aux, 2) * lat_aux +
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119.79 * Math.pow(lat_aux, 3);
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return x;
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}
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// Convert CH y/x to WGS lat
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function CHtoWGSlat(y, x) {
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// Converts militar to civil and to unit = 1000km
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// Axiliary values (% Bern)
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var y_aux = (y - 600000) / 1000000;
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var x_aux = (x - 200000) / 1000000;
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|
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// Process lat
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var lat = 16.9023892 +
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3.238272 * x_aux -
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0.270978 * Math.pow(y_aux, 2) -
|
|
0.002528 * Math.pow(x_aux, 2) -
|
|
0.0447 * Math.pow(y_aux, 2) * x_aux -
|
|
0.0140 * Math.pow(x_aux, 3);
|
|
|
|
// Unit 10000" to 1 " and converts seconds to degrees (dec)
|
|
lat = lat * 100 / 36;
|
|
|
|
return lat;
|
|
|
|
}
|
|
|
|
// Convert CH y/x to WGS long
|
|
function CHtoWGSlng(y, x) {
|
|
|
|
// Converts militar to civil and to unit = 1000km
|
|
// Axiliary values (% Bern)
|
|
var y_aux = (y - 600000) / 1000000;
|
|
var x_aux = (x - 200000) / 1000000;
|
|
|
|
// Process long
|
|
var lng = 2.6779094 +
|
|
4.728982 * y_aux +
|
|
0.791484 * y_aux * x_aux +
|
|
0.1306 * y_aux * Math.pow(x_aux, 2) -
|
|
0.0436 * Math.pow(y_aux, 3);
|
|
|
|
// Unit 10000" to 1 " and converts seconds to degrees (dec)
|
|
lng = lng * 100 / 36;
|
|
|
|
return lng;
|
|
|
|
}
|
|
|
|
|
|
// Convert SEX DMS angle to DEC
|
|
function SEXtoDEC(angle) {
|
|
|
|
// Extract DMS
|
|
var deg = parseInt(angle, 10);
|
|
var min = parseInt((angle - deg) * 100, 10);
|
|
var sec = (((angle - deg) * 100) - min) * 100;
|
|
|
|
// Result in degrees sex (dd.mmss)
|
|
return deg + (sec / 60 + min) / 60;
|
|
|
|
}
|
|
|
|
// Convert DEC angle to SEX DMS
|
|
function DECtoSEX(angle) {
|
|
|
|
// Extract DMS
|
|
var deg = parseInt(angle, 10);
|
|
var min = parseInt((angle - deg) * 60, 10);
|
|
var sec = (((angle - deg) * 60) - min) * 60;
|
|
|
|
// Result in degrees sex (dd.mmss)
|
|
return deg + min / 100 + sec / 10000;
|
|
|
|
}
|
|
|
|
// Convert Degrees angle to seconds
|
|
function DEGtoSEC(angle) {
|
|
|
|
// Extract DMS
|
|
var deg = parseInt(angle, 10);
|
|
var min = parseInt((angle - deg) * 100, 10);
|
|
var sec = (((angle - deg) * 100) - min) * 100;
|
|
|
|
// Avoid rounding problems with seconds=0
|
|
var parts = String(angle).split('.');
|
|
if (parts.length == 2 && parts[1].length == 2) {
|
|
min = Number(parts[1]);
|
|
sec = 0;
|
|
}
|
|
|
|
// Result in degrees sex (dd.mmss)
|
|
return sec + min * 60 + deg * 3600;
|
|
|
|
}
|
|
|
|
</script>
|
|
</body>
|
|
</html></code></pre>
|
|
</div>
|
|
</div>
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