Format: Added EncodedPolyline class

This class is able to convert an encoded polyline string into a LineString embedded in a Vector Feature. See https://developers.google.com/maps/documentation/utilities/polylinealgorithm for more information.
2012-12-26 18:25:04 +01:00
parent 4b2e80fa36
commit 63a9567858
4 changed files with 128 additions and 0 deletions
@@ -0,0 +1,41 @@
+<html>
+<head>
+    <script src="../OLLoader.js"></script>
+    <script type="text/javascript">
+
+    var linestring = new OpenLayers.Feature.Vector(
+        new OpenLayers.Geometry.LineString([
+            new OpenLayers.Geometry.Point(-120.2, 38.5),
+            new OpenLayers.Geometry.Point(-120.95, 40.7),
+            new OpenLayers.Geometry.Point(-126.45300000000002, 43.252)
+        ])
+    );
+
+    var encoded = "_p~iF~ps|U_ulLnnqC_mqNvxq`@";
+
+    function test_Format_EncodedPolyline_constructor(t) {
+        t.plan(4);
+
+        var options = {'foo': 'bar'};
+        var format = new OpenLayers.Format.EncodedPolyline(options);
+        t.ok(format instanceof OpenLayers.Format.EncodedPolyline,
+             "new OpenLayers.Format.EncodedPolyline returns object" );
+        t.eq(format.foo, "bar", "constructor sets options correctly");
+        t.eq(typeof format.read, "function", "format has a read function");
+        t.eq(typeof format.write, "function", "format has a write function");
+    }
+
+    function test_Format_EncodedPolyline_read(t) {
+        t.plan(1);
+
+        var format = new OpenLayers.Format.EncodedPolyline();
+
+        t.ok(linestring.geometry.equals(format.read(encoded).geometry),
+             "format correctly reads encoded polyline");
+    }
+
+    </script>
+</head>
+<body>
+</body>
+</html>