Merge pull request #749 from openlayers/webgl-vector

Skeleton WebGL vector support
2013-06-17 07:08:33 -07:00
parent be0149e478 bbb95e15fa
commit 7b9ac53ace
24 changed files with 1889 additions and 12 deletions
--- a/examples/ten-thousand-points.html
+++ b/examples/ten-thousand-points.html
@@ -0,0 +1,55 @@
+<!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="../resources/bootstrap/css/bootstrap.min.css" type="text/css">
+    <link rel="stylesheet" href="../resources/layout.css" type="text/css">
+    <link rel="stylesheet" href="../resources/bootstrap/css/bootstrap-responsive.min.css" type="text/css">
+    <title>Ten thousand points 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><iframe class="github-watch-button" src="http://ghbtns.com/github-btn.html?user=openlayers&repo=ol3&type=watch&count=true"
+  allowtransparency="true" frameborder="0" scrolling="0" height="20" width="90"></iframe></li>
+            <li><a href="https://twitter.com/share" class="twitter-share-button" data-count="none" data-hashtags="openlayers">&nbsp;</a></li>
+            <li><div class="g-plusone-wrapper"><div class="g-plusone" data-size="medium" data-annotation="none"></div></div></li>
+          </ul>
+        </div>
+      </div>
+    </div>
+
+    <div class="container-fluid">
+
+      <div class="row-fluid">
+        <div class="span12">
+          <div id="map" class="map"></div>
+        </div>
+      </div>
+
+      <div class="row-fluid">
+
+        <div class="span4">
+          <h4 id="title">Ten thousand points example</h4>
+          <p id="shortdesc">Example of a map with ten thousand points.</p>
+          <div id="docs">
+            <p>See the <a href="ten-thousand-points.js" target="_blank">ten-thousand-points.js source</a> to see how this is done.</p>
+          </div>
+          <div id="tags">points, vector, openstreetmap</div>
+        </div>
+
+      </div>
+
+    </div>
+
+    <script src="loader.js?id=ten-thousand-points" type="text/javascript"></script>
+    <script src="../resources/social-links.js" type="text/javascript"></script>
+
+  </body>
+</html>
--- a/examples/ten-thousand-points.js
+++ b/examples/ten-thousand-points.js
@@ -0,0 +1,68 @@
+goog.require('ol.Map');
+goog.require('ol.RendererHint');
+goog.require('ol.View2D');
+goog.require('ol.control.MousePosition');
+goog.require('ol.control.defaults');
+goog.require('ol.geom2.LineStringCollection');
+goog.require('ol.geom2.PointCollection');
+goog.require('ol.layer.TileLayer');
+goog.require('ol.layer.VectorLayer2');
+goog.require('ol.source.OSM');
+goog.require('ol.source.VectorSource2');
+
+
+// WARNING
+// This example is an experimental testbed for WebGL vector work.  The function
+// calls used here are internal and low-level and are not representative of the
+// final API.
+
+
+var pointCollection = ol.geom2.PointCollection.createEmpty(101 * 101);
+var i, j, x, y;
+for (i = 0; i < 101; ++i) {
+  for (j = 0; j < 101; ++j) {
+    x = 20000000 * (i - 50) / 50;
+    y = 20000000 * (j - 50) / 50;
+    pointCollection.add([x, y]);
+  }
+}
+
+var k = 1000000;
+var lineStringCollection = ol.geom2.LineStringCollection.pack([
+  [[-20 * k, -20 * k], [20 * k, 20 * k]],
+  [[-20 * k, 20 * k], [20 * k, -20 * k]],
+  [[0 * k, 15 * k],
+   [10 * k, 5 * k],
+   [5 * k, 5 * k],
+   [5 * k, -15 * k],
+   [-5 * k, -15 * k],
+   [-5 * k, 5 * k],
+   [-10 * k, 5 * k],
+   [0 * k, 15 * k]]
+]);
+
+var map = new ol.Map({
+  controls: ol.control.defaults({}, [
+    new ol.control.MousePosition({
+      undefinedHTML: '&nbsp;'
+    })
+  ]),
+  layers: [
+    new ol.layer.TileLayer({
+      source: new ol.source.OSM()
+    }),
+    new ol.layer.VectorLayer2({
+      source: new ol.source.VectorSource2({
+        lineStringCollections: [lineStringCollection],
+        projection: 'EPSG:3857',
+        pointCollections: [pointCollection]
+      })
+    })
+  ],
+  renderer: ol.RendererHint.WEBGL,
+  target: 'map',
+  view: new ol.View2D({
+    center: [0, 0],
+    zoom: 0
+  })
+});