add vcglib

vcglib/vcg/complex/algorithms/update/position.h

@@ -0,0 +1,105 @@
+/****************************************************************************
+* 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.                                                         *
+*                                                                           *
+****************************************************************************/
+/****************************************************************************
+  History
+
+$Log: not supported by cvs2svn $
+Revision 1.1  2005/07/06 08:02:27  cignoni
+Initial commit
+
+
+****************************************************************************/
+#ifndef __VCG_TRI_UPDATE_POSITION
+#define __VCG_TRI_UPDATE_POSITION
+
+#include "normal.h"
+
+namespace vcg {
+namespace tri {
+
+/// \ingroup trimesh 
+
+/// \headerfile position.h vcg/complex/algorithms/update/position.h
+
+/// \brief This class is used to update vertex position according to a transformation matrix.
+template <class ComputeMeshType>
+class UpdatePosition
+{
+
+public:
+typedef ComputeMeshType MeshType; 
+typedef typename MeshType::ScalarType     ScalarType;
+typedef typename MeshType::VertexType     VertexType;
+typedef typename MeshType::VertexPointer  VertexPointer;
+typedef typename MeshType::VertexIterator VertexIterator;
+typedef typename MeshType::FaceType       FaceType;
+typedef typename MeshType::FacePointer    FacePointer;
+typedef typename MeshType::FaceIterator   FaceIterator;
+
+/// \brief Multiply 
+static void Matrix(ComputeMeshType &m, const Matrix44<ScalarType> &M, bool update_also_normals = true)
+{
+	VertexIterator vi;
+	for(vi=m.vert.begin();vi!=m.vert.end();++vi)
+	        if(!(*vi).IsD()) (*vi).P()=M*(*vi).cP();
+
+	if(update_also_normals){
+		if(HasPerVertexNormal(m)){
+			UpdateNormal<ComputeMeshType>::PerVertexMatrix(m,M);
+		}
+		if(HasPerFaceNormal(m)){
+			UpdateNormal<ComputeMeshType>::PerFaceMatrix(m,M);
+		}
+	}
+}
+
+static void Translate(ComputeMeshType &m, const Point3<ScalarType> &t)
+{
+  VertexIterator vi;
+  for(vi=m.vert.begin();vi!=m.vert.end();++vi)
+          if(!(*vi).IsD()) (*vi).P()+=t;
+}
+
+static void Scale(ComputeMeshType &m, const ScalarType s)
+{
+  Scale(m,Point3<ScalarType>(s,s,s));
+}
+
+static void Scale(ComputeMeshType &m, const Point3<ScalarType> &s)
+{
+  VertexIterator vi;
+  for(vi=m.vert.begin();vi!=m.vert.end();++vi)
+          if(!(*vi).IsD()) {
+            (*vi).P()[0]*=s[0];
+            (*vi).P()[1]*=s[1];
+            (*vi).P()[2]*=s[2];
+          }
+}
+
+}; // end class
+
+}	// End namespace
+}	// End namespace
+
+
+#endif