From 7c56855186b230f3a928bc0f8a6ac79eb91fb697 Mon Sep 17 00:00:00 2001
From: Elmom <elmo.mantynen@iki.fi>
Date: Wed, 16 Feb 2011 11:51:46 +0200
Subject: [PATCH] Added a spin module, does what the transformation with the
 same name in Blender does

---
 utilities.scad | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/utilities.scad b/utilities.scad
index 174d4ba..6d6468d 100644
--- a/utilities.scad
+++ b/utilities.scad
@@ -23,6 +23,16 @@ function angle(v) = angleOfNormalizedVector(normalized(v));
 
 function angleBetweenTwoPoints(a, b) = angle(normalized(b-a));
 
+// TODO check that the axis parameter works as intended
+// Duplicate everything $no of times around an $axis, for $angle/360 rounds
+module spin(no, angle=360, axis=[0, 0, 1]){
+    for (i = [0:no]){
+        rotate(normalized(axis)*angle*i/no) union(){
+            for (i = [0 : $children-1]) child(i);
+        }
+    }
+}
+ 
 
 CENTER = 0;
 LEFT = -0.5;