From 86d5da1e2305edeba38371ae21b900e1a40d1184 Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Fri, 29 Jul 2022 08:32:43 +0800
Subject: [PATCH] remove center param

---
 src/experimental/great_circle_arc.scad | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/experimental/great_circle_arc.scad b/src/experimental/great_circle_arc.scad
index edb9f767..6befe7dd 100644
--- a/src/experimental/great_circle_arc.scad
+++ b/src/experimental/great_circle_arc.scad
@@ -1,16 +1,16 @@
 use <__comm__/__frags.scad>
 use <ptf/ptf_rotate.scad>
 
-function great_circle_arc(p1, p2, center = [0, 0, 0]) =
+function great_circle_arc(p1, p2) =
     let(
-        radius = norm(p1 - center),
+        radius = norm(p1),
         normal_vt = cross(p2, p1),
         a = acos(p2 * p1 / pow(radius, 2)),
         steps = round(a / (360 / __frags(radius)))
     )
     steps == 0 ? [p1, p2] :
     let(a_step = a / steps)
-    [for(i = [0:steps]) ptf_rotate(p1, a_step * i, normal_vt) + center];
+    [for(i = [0:steps]) ptf_rotate(p1, a_step * i, normal_vt)];
 
 /*
 use <experimental/great_circle_arc.scad>