From ddb00d1ad17dd29ef68304f22ed9b9120a9320ff Mon Sep 17 00:00:00 2001
From: "Mr.doob" <info@mrdoob.com>
Date: Mon, 9 Mar 2015 22:52:18 +0100
Subject: [PATCH] BufferGeometry: Implemented .center()

---
 src/core/BufferGeometry.js | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/core/BufferGeometry.js b/src/core/BufferGeometry.js
index fbf6968b1f..14bfe1a97c 100644
--- a/src/core/BufferGeometry.js
+++ b/src/core/BufferGeometry.js
@@ -84,13 +84,13 @@ THREE.BufferGeometry.prototype = {
 
 		}
 
-		if ( this.boundingBox instanceof THREE.Box3 ) {
+		if ( this.boundingBox !== null ) {
 
 			this.computeBoundingBox();
 
 		}
 
-		if ( this.boundingSphere instanceof THREE.Sphere ) {
+		if ( this.boundingSphere !== null ) {
 
 			this.computeBoundingSphere();
 
@@ -100,7 +100,13 @@ THREE.BufferGeometry.prototype = {
 
 	center: function () {
 
-		// TODO
+		this.computeBoundingBox();
+
+		var offset = this.boundingBox.center().negate();
+
+		this.applyMatrix( new THREE.Matrix4().setPosition( offset ) );
+
+		return offset;
 
 	},
 
-- 
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