From 794d1b6598767f367e94c4aa4c1627d45478b2f4 Mon Sep 17 00:00:00 2001
From: Christopher Lackner <christopher.lackner@tuwien.ac.at>
Date: Thu, 30 Mar 2017 15:22:19 +0200
Subject: [PATCH] fix el.mat for bbnd elements in 3D

---
 libsrc/include/nginterface_v2_impl.hpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/libsrc/include/nginterface_v2_impl.hpp b/libsrc/include/nginterface_v2_impl.hpp
index 8d27049d..53147aca 100644
--- a/libsrc/include/nginterface_v2_impl.hpp
+++ b/libsrc/include/nginterface_v2_impl.hpp
@@ -73,7 +73,14 @@ NGX_INLINE DLL_HEADER Ng_Element Ngx_Mesh :: GetElement<1> (size_t nr) const
   if (mesh->GetDimension() == 2)
     ret.mat = mesh->GetBCNamePtr(el.si-1);
   else
-    ret.mat = nullptr;
+    {
+      if (mesh->GetDimension() == 3){
+        ret.mat = &mesh->GetCD2Name(el.edgenr-1);
+      }
+      else
+        ret.mat = nullptr;
+    }
+
   ret.points.num = el.GetNP();
   ret.points.ptr = (int*)&(el[0]);