From b7c3ef2fee3016c1e963b0ae99931e2671b6d206 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Sun, 5 Apr 2020 11:04:24 +0800
Subject: [PATCH] add gcd

---
 src/loft.scad | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/loft.scad b/src/loft.scad
index 2bf283a5..030dd8ad 100644
--- a/src/loft.scad
+++ b/src/loft.scad
@@ -1,6 +1,7 @@
 use <sweep.scad>;
    
 module loft(sections, slices = 1) {
+    function gcd(m, n) = n == 0 ? m : gcd(n, m % n);
     function lcm(m, n) = m * n / gcd(m, n);
 
     function inter_pts(p1, p2, n) =