From 251c119d76892013843c0da3ad963e6d3be73c4a Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Fri, 19 May 2017 08:22:36 +0800
Subject: [PATCH] refactored

---
 src/__private__/__angy_angz.scad |  8 ++++++++
 src/bezier_smooth.scad           | 14 +++-----------
 2 files changed, 11 insertions(+), 11 deletions(-)
 create mode 100644 src/__private__/__angy_angz.scad

diff --git a/src/__private__/__angy_angz.scad b/src/__private__/__angy_angz.scad
new file mode 100644
index 00000000..9f3faf4a
--- /dev/null
+++ b/src/__private__/__angy_angz.scad
@@ -0,0 +1,8 @@
+function __angy_angz(p1, p2) = 
+    let(
+        dx = p2[0] - p1[0],
+        dy = p2[1] - p1[1],
+        dz = p2[2] - p1[2],
+        za = atan2(dy, dx),
+        ya = atan2(dz, sqrt(pow(dx, 2) + pow(dy, 2)))
+    ) [ya, za];
\ No newline at end of file
diff --git a/src/bezier_smooth.scad b/src/bezier_smooth.scad
index 95398999..4d144436 100644
--- a/src/bezier_smooth.scad
+++ b/src/bezier_smooth.scad
@@ -12,20 +12,12 @@
 
 include <__private__/__to3d.scad>;
 include <__private__/__to2d.scad>;
+include <__private__/__angy_angz.scad>;
 
-function _ya_za(p1, p2) = 
-    let(
-        dx = p2[0] - p1[0],
-        dy = p2[1] - p1[1],
-        dz = p2[2] - p1[2],
-        za = atan2(dy, dx),
-        ya = atan2(dz, sqrt(pow(dx, 2) + pow(dy, 2)))
-    ) [ya, za];
-    
 function _corner_ctrl_pts(round_d, p1, p2, p3) =
     let(
-        _ya_za_1 = _ya_za(p1, p2),
-        _ya_za_2 = _ya_za(p3, p2),
+        _ya_za_1 = __angy_angz(p1, p2),
+        _ya_za_2 = __angy_angz(p3, p2),
         
         dz1 = sin(_ya_za_1[0]) * round_d,
         dxy1 = cos(_ya_za_1[0]) * round_d,