add an example of how to use a WKT string in a vector source

examples/wkt.js

@@ -0,0 +1,33 @@
+goog.require('ol.Map');
+goog.require('ol.RendererHint');
+goog.require('ol.View2D');
+goog.require('ol.layer.Tile');
+goog.require('ol.layer.Vector');
+goog.require('ol.parser.WKT');
+goog.require('ol.proj');
+goog.require('ol.source.OSM');
+goog.require('ol.source.Vector');
+
+var raster = new ol.layer.Tile({
+  source: new ol.source.OSM()
+});
+
+var vector = new ol.layer.Vector({
+  source: new ol.source.Vector({
+    parser: new ol.parser.WKT(),
+    projection: ol.proj.get('EPSG:4326'),
+    data: 'POLYGON((10.689697265625 -25.0927734375, 34.595947265625 ' +
+        '-20.1708984375, 38.814697265625 -35.6396484375, 13.502197265625 ' +
+        '-39.1552734375, 10.689697265625 -25.0927734375))'
+  })
+});
+
+var map = new ol.Map({
+  layers: [raster, vector],
+  renderer: ol.RendererHint.CANVAS,
+  target: 'map',
+  view: new ol.View2D({
+    center: [2952104.019976033, -3277504.823700756],
+    zoom: 4
+  })
+});