Add Tissot indicatrix example

examples/tissot.js

@@ -0,0 +1,44 @@
+goog.require('ol.Feature');
+goog.require('ol.Map');
+goog.require('ol.View2D');
+goog.require('ol.layer.Tile');
+goog.require('ol.layer.Vector');
+goog.require('ol.source.TileWMS');
+goog.require('ol.source.Vector');
+goog.require('ol.sphere.WGS84');
+
+var vectorSource = new ol.source.Vector();
+
+var map = new ol.Map({
+  layers: [
+    new ol.layer.Tile({
+      source: new ol.source.TileWMS({
+        url: 'http://vmap0.tiles.osgeo.org/wms/vmap0',
+        params: {
+          'VERSION': '1.1.1',
+          'LAYERS': 'basic',
+          'FORMAT': 'image/jpeg'
+        }
+      })
+    }),
+    new ol.layer.Vector({
+      source: vectorSource
+    })
+  ],
+  renderer: 'canvas',
+  target: 'map',
+  view: new ol.View2D({
+    projection: 'EPSG:4326',
+    center: [0, 0],
+    zoom: 2
+  })
+});
+
+
+var radius = 800000;
+for (var x = -180; x < 180; x += 30) {
+  for (var y = -90; y < 90; y += 30) {
+    var geometry = ol.sphere.WGS84.circle([x, y], radius, 64);
+    vectorSource.addFeature(new ol.Feature(geometry));
+  }
+}