From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 7 Nov 2017 14:41:05 +0000 (+0000)
Subject: scad.py: no-oply skip writing empty polyhedrons
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=1463ff97f50594439654b79a48282d2bde9b744d;p=moebius3.git

scad.py: no-oply skip writing empty polyhedrons

nfc with genscad, will be used for meshscad

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/scad.py b/scad.py
index 3aca0f9..f46d32e 100644
--- a/scad.py
+++ b/scad.py
@@ -8,6 +8,7 @@ class ScadObject:
     so._triangles = []
 
   def writeout_core(so, scalefactor=1):
+    if not so._points: return
     print('scale(%s) polyhedron(points=[' % scalefactor)
     for p in so._points: print(p, ',')
     print('],faces=[')