From 40a28b6f08dff909695a70b0e55936f7fd526c89 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Tue, 16 Apr 2019 03:34:45 +0200
Subject: [PATCH] yet another fix. rhombic not work

---
 euclid.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/euclid.cpp b/euclid.cpp
index d5fc55ea..6a7e4ffe 100644
--- a/euclid.cpp
+++ b/euclid.cpp
@@ -654,7 +654,8 @@ namespace euclid3 {
     transmatrix warppush(coord dif) {
       auto v = getcoord(dif);
       for(int i: {0, 1})
-        v[i] = gmod(v[i] + T0[i][i] / 2, T0[i][i]) - T0[i][i] / 2;
+        if(T0[i][i])
+          v[i] = gmod(v[i] + T0[i][i] / 2, T0[i][i]) - T0[i][i] / 2;
       return eupush3(v[0], v[1], v[2]);
       }