From 78211aee7e25ea6c8b4c7299903aba35568e7050 Mon Sep 17 00:00:00 2001
From: jbphet <john.blanco@colorado.edu>
Date: Tue, 29 Nov 2016 14:19:10 -0700
Subject: [PATCH] instrumented RulerNode for phet-io, see
 https://github.com/phetsims/gravity-force-lab/issues/76

---
 js/types/scenery-phet/TRulerNode.js | 36 +++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 js/types/scenery-phet/TRulerNode.js

diff --git a/js/types/scenery-phet/TRulerNode.js b/js/types/scenery-phet/TRulerNode.js
new file mode 100644
index 000000000..081ae91cb
--- /dev/null
+++ b/js/types/scenery-phet/TRulerNode.js
@@ -0,0 +1,36 @@
+// Copyright 2016, University of Colorado Boulder
+
+/**
+ * wrapper type for RulerNode
+ *
+ * @author Sam Reid (PhET Interactive Simulations)
+ * @author John Blanco (PhET Interactive Simulations)
+ */
+define( function( require ) {
+  'use strict';
+
+  // modules
+  var assertInstanceOf = require( 'PHET_IO/assertions/assertInstanceOf' );
+  var phetioInherit = require( 'PHET_IO/phetioInherit' );
+  var phetioNamespace = require( 'PHET_IO/phetioNamespace' );
+  var TNode = require( 'PHET_IO/types/scenery/nodes/TNode' );
+
+  /**
+   * @param {RulerNode} rulerNode
+   * @param {string} phetioID
+   * @constructor
+   */
+  function TRulerNode( rulerNode, phetioID ) {
+    TNode.call( this, rulerNode, phetioID );
+    assertInstanceOf( rulerNode, phet.sceneryPhet.RulerNode );
+  }
+
+  phetioInherit( TNode, 'TRulerNode', TRulerNode, {}, {
+    documentation: 'A node with the visual appearance of a ruler'
+  } );
+
+  phetioNamespace.register( 'TRulerNode', TRulerNode );
+
+  return TRulerNode;
+} );
+