From 3889d12262e91b07f22f2b4f923bda09f9c604e5 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Tue, 31 Mar 2020 07:27:53 +0800
Subject: [PATCH] support depth

---
 src/util/flat.scad | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/util/flat.scad b/src/util/flat.scad
index dd1dc2c9..f7af5b7d 100644
--- a/src/util/flat.scad
+++ b/src/util/flat.scad
@@ -1 +1,3 @@
-function flat(lt) = [for(row_pts = lt) each row_pts];
\ No newline at end of file
+function flat(lt, depth = 1) =
+    depth == 1 ? [for(row = lt) each row] :
+                 [for(row = lt) each flat(row, depth - 1)];
\ No newline at end of file