Add export JPEG example

2013-03-06 21:28:59 +01:00
parent 479e7fc8dd
commit 58323bb8fc
2 changed files with 79 additions and 0 deletions
--- a/examples/export-jpeg.html
+++ b/examples/export-jpeg.html
@@ -0,0 +1,53 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="chrome=1">
+    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
+    <link rel="stylesheet" href="bootstrap/css/bootstrap.min.css" type="text/css">
+    <link rel="stylesheet" href="examples.css" type="text/css">
+    <link rel="stylesheet" href="bootstrap/css/bootstrap-responsive.min.css" type="text/css">
+    <title>Export JPEG example</title>
+  </head>
+  <body>
+
+    <div class="navbar navbar-inverse navbar-fixed-top">
+      <div class="navbar-inner">
+        <div class="container">
+          <a class="brand" href="example-list.html">OpenLayers 3 Examples</a>
+          <ul class="nav pull-right">
+            <li><a href="https://github.com/openlayers/ol3"><i class="icon-github"></i></a></li>
+            <li><a href="https://twitter.com/openlayers"><i class="icon-twitter"></i></a></li>
+          </ul>
+        </div>
+      </div>
+    </div>
+
+    <div class="container-fluid">
+
+      <div class="row-fluid">
+        <div class="span12">
+          <div id="map" class="map"></div>
+          <a id="export-jpeg" class="btn" download="map.jpeg"><i class="icon-download"></i> Export JPEG</a>
+        </div>
+      </div>
+
+      <div class="row-fluid">
+
+        <div class="span4">
+          <h4 id="title">Export JPEG example</h4>
+          <p id="shortdesc">Example of exporting a map as a JPEG image.</p>
+          <div id="docs">
+            <p>See the <a href="export-jpeg.js" target="_blank">export-jpeg.js source</a> to see how this is done.</p>
+          </div>
+          <div id="tags">export-jpeg, openstreetmap</div>
+        </div>
+
+      </div>
+
+    </div>
+
+    <script src="loader.js?id=export-jpeg" type="text/javascript"></script>
+
+  </body>
+</html>
--- a/examples/export-jpeg.js
+++ b/examples/export-jpeg.js
@@ -0,0 +1,26 @@
+goog.require('ol.Coordinate');
+goog.require('ol.Map');
+goog.require('ol.RendererHint');
+goog.require('ol.View2D');
+goog.require('ol.layer.TileLayer');
+goog.require('ol.source.OpenStreetMap');
+
+
+var map = new ol.Map({
+  layers: [
+    new ol.layer.TileLayer({
+      source: new ol.source.OpenStreetMap()
+    })
+  ],
+  renderer: ol.RendererHint.CANVAS,
+  target: 'map',
+  view: new ol.View2D({
+    center: new ol.Coordinate(0, 0),
+    zoom: 2
+  })
+});
+
+var exportJPEGElement = document.getElementById('export-jpeg');
+exportJPEGElement.addEventListener('click', function(e) {
+  e.target.href = map.getRenderer().getCanvas().toDataURL('image/jpeg');
+}, false);