From 0b7c8467cccf941e4e466a61d17c01fe226f5f29 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Wed, 19 Feb 2020 21:32:30 +0800
Subject: [PATCH] fix dir

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

diff --git a/src/experimental/tf_sphere.scad b/src/experimental/tf_sphere.scad
index 28003bf6..6346216f 100644
--- a/src/experimental/tf_sphere.scad
+++ b/src/experimental/tf_sphere.scad
@@ -18,6 +18,6 @@ function tf_sphere(size, point, radius, angle = [180, 360]) =
         za_step = za / ylen,
         rza = za_step * y,
         rzpt = [(radius + z) * cos(rza), (radius + z) * sin(rza), 0],       
-        rxpt = rotate_p(rzpt, [180 - xa / xlen * x, 0, 0])   
+        rxpt = rotate_p(rzpt, [-xa / xlen * x + xa, 0, 0])   
     )
     rxpt;
\ No newline at end of file