Add dynamic data example

2013-11-11 11:20:32 +01:00
parent ea0f8d1f8e
commit 26d2f38929
2 changed files with 103 additions and 0 deletions
--- a/examples/dynamic-data.html
+++ b/examples/dynamic-data.html
@@ -0,0 +1,50 @@
+<!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="../css/ol.css" type="text/css">
+    <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>Dynamic data example</title>
+  </head>
+  <body>
+
+    <div class="navbar navbar-inverse navbar-fixed-top">
+      <div class="navbar-inner">
+        <div class="container">
+          <a class="brand" href="./"><img src="../resources/logo.png"> OpenLayers 3 Examples</a>          
+        </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="span12">
+          <h4 id="title">Dynamic data example</h4>
+          <p id="shortdesc">Example of dynamic data.</p>
+          <div id="docs">
+            <p>See the <a href="dynamic-data.js" target="_blank">dynamic-data.js source</a> to see how this is done.</p>
+          </div>
+          <div id="tags">dynamic-data</div>
+        </div>
+
+      </div>
+
+    </div>
+
+    <script src="loader.js?id=dynamic-data" type="text/javascript"></script>
+    <script src="../resources/example-behaviour.js" type="text/javascript"></script>
+
+  </body>
+</html>
--- a/examples/dynamic-data.js
+++ b/examples/dynamic-data.js
@@ -0,0 +1,53 @@
+goog.require('ol.Map');
+goog.require('ol.RendererHint');
+goog.require('ol.View2D');
+goog.require('ol.geom.MultiPoint');
+goog.require('ol.layer.Tile');
+goog.require('ol.source.MapQuestOpenAerial');
+goog.require('ol.symbol');
+
+
+var map = new ol.Map({
+  layers: [
+    new ol.layer.Tile({
+      source: new ol.source.MapQuestOpenAerial()
+    })
+  ],
+  renderer: ol.RendererHint.CANVAS,
+  target: 'map',
+  view: new ol.View2D({
+    center: [0, 0],
+    zoom: 2
+  })
+});
+map.beforeRender(function(map, frameState) {
+  frameState.animate = true;
+  return true;
+});
+var imageStyle = ol.symbol.renderCircle(5, {
+  color: 'yellow'
+}, {
+  color: 'red',
+  width: 1
+});
+var n = 200;
+var omegaTheta = 30000; // Rotation period in ms
+var R = 7e6;
+var r = 2e6;
+var p = 2e6;
+map.on('postcompose', function(event) {
+  var render = event.getRender();
+  var frameState = event.getFrameState();
+  var theta = 2 * Math.PI * frameState.time / omegaTheta;
+  var coordinates = [];
+  var i;
+  for (i = 0; i < n; ++i) {
+    var t = theta + 2 * Math.PI * i / n;
+    var x = (R + r) * Math.cos(t) + p * Math.cos((R + r) * t / r);
+    var y = (R + r) * Math.sin(t) + p * Math.sin((R + r) * t / r);
+    coordinates.push([x, y]);
+  }
+  render.setImageStyle(imageStyle);
+  render.drawMultiPointGeometry(new ol.geom.MultiPoint(coordinates));
+});
+map.requestRenderFrame();