Add synthetic data example

2013-11-10 01:41:56 +01:00
parent b5be628446
commit b46c38626b
2 changed files with 119 additions and 0 deletions
--- a/examples/synthetic-data.html
+++ b/examples/synthetic-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>Synthetic 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">Synthetic data example</h4>
+          <p id="shortdesc">Synthetic data example.</p>
+          <div id="docs">
+            <p>See the <a href="synthetic-data.js" target="_blank">synthetic-data.js source</a> to see how this is done.</p>
+          </div>
+          <div id="tags">vector</div>
+        </div>
+
+      </div>
+
+    </div>
+
+    <script src="loader.js?id=synthetic-data" type="text/javascript"></script>
+    <script src="../resources/example-behaviour.js" type="text/javascript"></script>
+
+  </body>
+</html>
--- a/examples/synthetic-data.js
+++ b/examples/synthetic-data.js
@@ -0,0 +1,69 @@
+goog.require('goog.functions');
+goog.require('ol.Map');
+goog.require('ol.Overlay');
+goog.require('ol.RendererHint');
+goog.require('ol.View2D');
+goog.require('ol.format.GeoJSON');
+goog.require('ol.layer.Vector');
+goog.require('ol.source.Vector');
+goog.require('ol.symbol');
+
+
+// build up some GeoJSON features
+var count = 20000;
+var features = new Array(count);
+var e = 18000000;
+for (var i = 0; i < count; ++i) {
+  features[i] = {
+    type: 'Feature',
+    properties: {
+      i: i,
+      size: i % 2 ? 10 : 20
+    },
+    geometry: {
+      type: 'Point',
+      coordinates: [
+        2 * e * Math.random() - e, 2 * e * Math.random() - e
+      ]
+    }
+  };
+}
+
+var vectorSource = new ol.source.Vector();
+new ol.format.GeoJSON().readObject({
+  type: 'FeatureCollection',
+  features: features
+}, vectorSource.addFeature, vectorSource);
+
+var styleFunction = goog.functions.constant({
+  image: ol.symbol.renderCircle(
+      5,
+      {
+        color: '#666666'
+      },
+      {
+        color: '#bada55',
+        width: 1
+      })
+});
+
+
+var vector = new ol.layer.Vector({
+  source: vectorSource,
+  styleFunction: styleFunction
+});
+
+var popup = new ol.Overlay({
+  element: document.getElementById('popup')
+});
+
+var map = new ol.Map({
+  layers: [vector],
+  renderer: ol.RendererHint.CANVAS,
+  target: 'map',
+  view: new ol.View2D({
+    center: [0, 0],
+    zoom: 2
+  }),
+  overlays: [popup]
+});