From 29762e878aba5a5c83dbab525f80067718e9e844 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Mon, 22 May 2017 17:20:53 +0800
Subject: [PATCH] fixed  begin > end if [begin:end] problem

---
 src/pie.scad | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pie.scad b/src/pie.scad
index b74eb904..abaf58e6 100644
--- a/src/pie.scad
+++ b/src/pie.scad
@@ -34,7 +34,7 @@ module pie(radius, angle) {
     
     points = concat(
         [[0, 0], __ra_to_xy(edge_r_begin(angles[0]), angles[0])],
-        [for(i = [m:n]) __ra_to_xy(radius, a_step * i)],
+        m > n ? [] : [for(i = [m:n]) __ra_to_xy(radius, a_step * i)],
         [__ra_to_xy(edge_r_end(angles[1]), angles[1])]
     );