From afaf8eaeb9a7cf0ec87a98c4bc600e4ed149612e Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Sun, 25 Oct 2020 11:43:48 +0800
Subject: [PATCH] add fibonacci_sphere

---
 src/experimental/fibonacci_sphere.scad | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 src/experimental/fibonacci_sphere.scad

diff --git a/src/experimental/fibonacci_sphere.scad b/src/experimental/fibonacci_sphere.scad
new file mode 100644
index 00000000..9c9b4520
--- /dev/null
+++ b/src/experimental/fibonacci_sphere.scad
@@ -0,0 +1,16 @@
+function fibonacci_sphere(samples) =
+    let(
+        toDegrees = 180 / PI,
+        phi = PI * (3 - sqrt(5))
+    )
+    [
+        for(i = [0:samples - 1])
+        let(
+            y = 1 - (i / (samples - 1)) * 2,
+            radius = sqrt(1 - y * y),
+            theta = phi * i,
+            x = cos(theta * toDegrees) * radius,
+            z = sin(theta * toDegrees) * radius
+        )
+        [x, y, z]
+    ];
\ No newline at end of file