From: Scott Worley <ScottWorley@ScottWorley.com>
Date: Mon, 31 Dec 2012 07:04:58 +0000 (-0800)
Subject: Increase the skip-rotation epsilon
X-Git-Url: http://git.scottworley.com/nt3d/commitdiff_plain/08b46dbddc6defd45926a69631e3a09ea2273e45?hp=72eac64d07af484314745fd0e9466e0f94915684

Increase the skip-rotation epsilon

Observed: a 0.9999999999999999 dot product yields a 1.4901161193847656e-8
angle.  The new, larger epsilon skips rotation for this point.
---

diff --git a/nt3d.js b/nt3d.js
index 0389946..7198e22 100644
--- a/nt3d.js
+++ b/nt3d.js
@@ -288,8 +288,8 @@ nt3d = {
 		// by crossing a and b to get a rotation axis and using
 		// angle_between to get a rotation angle.
 		var angle = this.angle_between(this.unit(a), this.unit(b));
-		if (Math.abs(angle) < 1e-15) {
-			// No siginificant rotation to perform.  Bail to avoid
+		if (Math.abs(angle) < 1e-7) {
+			// No significant rotation to perform.  Bail to avoid
 			// NaNs and numerical error
 			return points;
 		}