From 55b2231d7badec16990b63ef1b6c770ef1e6fc25 Mon Sep 17 00:00:00 2001
From: hwc487
Date: Fri, 16 Mar 2012 15:17:53 -0700
Subject: Supporting new and old GL data formats.

---
 js/lib/drawing/world.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'js/lib/drawing/world.js')

diff --git a/js/lib/drawing/world.js b/js/lib/drawing/world.js
index 4b117242..0ee66abe 100755
--- a/js/lib/drawing/world.js
+++ b/js/lib/drawing/world.js
@@ -754,7 +754,14 @@ World.prototype.exportJSON = function()
 	// convert the object to a string
 	var jStr = JSON.stringify( worldObj );
 
-	// the RDGE export function corrupts the data.
+	// prepend some version information to the string.
+	// this string is also used to differentiate between JSON
+	// and pre-JSON versions of fileIO.
+	// the ending ';' in the version string is necessary
+	jStr = "v1.0;" + jStr;
+
+	// You would think that the RDGE export function
+	// would not change the data.  You would be wrong...
 	// rebuild the tree
 	var root = this._rootNode;
 	root.children = new Array();
-- 
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