From 0cda1aa9dd62a342df7ec1f7c1367a9bc0747f86 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Tue, 14 Jun 2011 11:14:26 +0100
Subject: [PATCH] Fix Point#getDirectedAngle, which was measured the wrong way
 round, and could be optimised using Math.atan2().

---
 src/basic/Point.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/basic/Point.js b/src/basic/Point.js
index bac38afd..ee71e0aa 100644
--- a/src/basic/Point.js
+++ b/src/basic/Point.js
@@ -590,8 +590,7 @@ var Point = this.Point = Base.extend({
 	 */
 	getDirectedAngle: function(point) {
 		point = Point.read(arguments);
-		var angle = this.getAngle() - point.getAngle();
-		return angle < -180 ? angle + 360 : angle > 180 ? angle - 360 : angle;
+		return Math.atan2(this.cross(point), this.dot(point)) * 180 / Math.PI;
 	},
 
 	/**