add vcglib

vcglib/vcg/simplex/tetrahedron/topology.h

@@ -0,0 +1,50 @@
+/****************************************************************************
+* VCGLib                                                            o o     *
+* Visual and Computer Graphics Library                            o     o   *
+*                                                                _   O  _   *
+* Copyright(C) 2004-2016                                           \/)\/    *
+* Visual Computing Lab                                            /\/|      *
+* ISTI - Italian National Research Council                           |      *
+*                                                                    \      *
+* All rights reserved.                                                      *
+*                                                                           *
+* This program is free software; you can redistribute it and/or modify      *
+* it under the terms of the GNU General Public License as published by      *
+* the Free Software Foundation; either version 2 of the License, or         *
+* (at your option) any later version.                                       *
+*                                                                           *
+* This program is distributed in the hope that it will be useful,           *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
+* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)          *
+* for more details.                                                         *
+*                                                                           *
+****************************************************************************/
+
+#ifndef _VCG_TETRA_TOPOLOGY
+#define _VCG_TETRA_TOPOLOGY
+
+#include <cassert>
+
+namespace vcg {
+namespace tetrahedron {
+/** \addtogroup tetrahedron */
+/*@{*/
+
+/** Return a boolean that indicate if the j-th face of the tetra is a border.
+    @param j Index of the face
+    @return true if j is an face of border, false otherwise
+*/
+template <class TetraType>
+inline bool IsTTBorder(TetraType const & t,  const int j )
+{
+  if(TetraType::HasTTAdjacency())
+      return t.cTTp(j)==&t;
+  assert(0);
+  return true;
+}
+
+}
+}
+
+#endif