From c69fd8820b1f74aef050ae4175b41b004898b85d Mon Sep 17 00:00:00 2001
From: Justin Lin <justin.sdk@gmail.com>
Date: Fri, 25 Jun 2021 08:24:09 +0800
Subject: [PATCH] rename variable

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

diff --git a/src/surface/sf_thicken.scad b/src/surface/sf_thicken.scad
index a5507b46..86653e6f 100644
--- a/src/surface/sf_thicken.scad
+++ b/src/surface/sf_thicken.scad
@@ -38,7 +38,7 @@ module sf_thicken(points, thickness, direction = "BOTH") {
 
     if(is_list(direction)) {
         dir_v = direction / norm(direction);
-        surface_bottom = points + thickness * [
+        surface_another = points + thickness * [
             for(y = [0:len(points) - 1])
             [
                 for(x = [0:len(points[0]) - 1])
@@ -51,10 +51,10 @@ module sf_thicken(points, thickness, direction = "BOTH") {
         nv = tri_normal([points[midy][midx], points[midy + 1][midx], points[midy][midx + 1]]);
 
         if(nv * dir_v > 0) {
-            sf_solidify(surface_bottom, points);
+            sf_solidify(surface_another, points);
         }
         else {
-            sf_solidify(points, surface_bottom);
+            sf_solidify(points, surface_another);
         }
     }
     else {