From 57914a82450da242ff0d264f7c983b0429dd01d2 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Sat, 12 Mar 2022 18:31:09 +0800
Subject: [PATCH] refactor

---
 src/fibonacci_lattice.scad | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/fibonacci_lattice.scad b/src/fibonacci_lattice.scad
index 28e0ff74..c7ad3f4d 100644
--- a/src/fibonacci_lattice.scad
+++ b/src/fibonacci_lattice.scad
@@ -8,20 +8,20 @@
 *
 **/
 
+use <util/degrees.scad>;
+
 function fibonacci_lattice(n, radius = 1, dir = "CT_CLK") =
     let(
-        toDegrees = 180 / PI,
         phi = PI * (3 - sqrt(5)),
         clk = dir == "CT_CLK" ? 1 : -1
     )
     [
         for(i = [0:n - 1])
         let(
-            z = 1 - (2* i + 1) / n,
-            r = sqrt(1 - z * z),
+            z = 1 - (2 * i + 1) / n,
+            r = sqrt(1 - z ^ 2),
             theta = phi * i * clk,
-            x = cos(theta * toDegrees) * r,
-            y = sin(theta * toDegrees) * r
+            deg = degrees(theta)
         )
-        [x, y, z] * radius
+        [cos(deg) * r, sin(deg) * r, z] * radius
     ];
\ No newline at end of file