From 20fc3b9f0f7d69f382b9a2c2e197b95e8378fe2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Mon, 28 Mar 2016 08:17:27 -0700
Subject: [PATCH] Optimize Curve.getArea() to use less operators.

As proposed by @iconexperience in https://github.com/paperjs/paper.js/issues/994#issuecomment-189946135, rearranged for mathematical symmetry.
Closes #994
---
 src/path/Curve.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/path/Curve.js b/src/path/Curve.js
index b911c245..b352885a 100644
--- a/src/path/Curve.js
+++ b/src/path/Curve.js
@@ -761,9 +761,9 @@ statics: /** @lends Curve */{
             c1x = v[2], c1y = v[3],
             c2x = v[4], c2y = v[5],
             p2x = v[6], p2y = v[7];
-        return (6 * (p1x*c1y-p1y*c1x+c2x*p2y-p2x*c2y) +
-                3 * (c1x*p2y-c1y*p2x+p1x*c2y-c2x*p1y+c1x*c2y-c1y*c2x) +
-                1 * (p1x*p2y-p1y*p2x)) / 20;
+        return 3 * ((p2y - p1y) * (c1x + c2x) - (p2x - p1x) * (c1y + c2y)
+                + c1y * (p1x - c2x) - c1x * (p1y - c2y)
+                + p2y * (c2x + p1x / 3) - p2x * (c2y + p1y / 3)) / 20;
     },
 
     getBounds: function(v) {