From c6c48ddeb16665d2406d5ab644def043d36898f8 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 27 Jul 2015 12:17:16 +0200
Subject: [PATCH] + fix crash in MeshCurvature::ComputePerVertex for empty
 meshes

---
 src/Mod/Mesh/App/Core/Curvature.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Mod/Mesh/App/Core/Curvature.cpp b/src/Mod/Mesh/App/Core/Curvature.cpp
index 93a0234e4b..2f5278bbf2 100644
--- a/src/Mod/Mesh/App/Core/Curvature.cpp
+++ b/src/Mod/Mesh/App/Core/Curvature.cpp
@@ -107,6 +107,10 @@ void MeshCurvature::ComputePerVertex()
         }
     }
 
+    // in case of an empty mesh no curvature can be calculated
+    if (myKernel.CountPoints() == 0 || myKernel.CountFacets() == 0)
+        return;
+
     // compute vertex based curvatures
     Wm4::MeshCurvature<double> meshCurv(myKernel.CountPoints(), &(aPnts[0]), myKernel.CountFacets(), &(aIdx[0]));