MOAB: Mesh Oriented datABase  (version 5.2.1)
JacobianCalculator.hpp
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00001 /* *****************************************************************
00002     MESQUITE -- The Mesh Quality Improvement Toolkit
00003 
00004     Copyright 2006 Sandia National Laboratories.  Developed at the
00005     University of Wisconsin--Madison under SNL contract number
00006     624796.  The U.S. Government and the University of Wisconsin
00007     retain certain rights to this software.
00008 
00009     This library is free software; you can redistribute it and/or
00010     modify it under the terms of the GNU Lesser General Public
00011     License as published by the Free Software Foundation; either
00012     version 2.1 of the License, or (at your option) any later version.
00013 
00014     This library is distributed in the hope that it will be useful,
00015     but WITHOUT ANY WARRANTY; without even the implied warranty of
00016     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017     Lesser General Public License for more details.
00018 
00019     You should have received a copy of the GNU Lesser General Public License
00020     (lgpl.txt) along with this library; if not, write to the Free Software
00021     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00022 
00023     (2006) kraftche@cae.wisc.edu
00024 
00025   ***************************************************************** */
00026 
00027 /** \file JacobianCalculator.hpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #ifndef MSQ_JACOBIAN_CALCULATOR_HPP
00033 #define MSQ_JACOBIAN_CALCULATOR_HPP
00034 
00035 #include "Mesquite.hpp"
00036 #include "MsqMatrix.hpp"
00037 #include "Vector3D.hpp"
00038 #include "NodeSet.hpp"
00039 
00040 #include <vector>
00041 
00042 namespace MBMesquite
00043 {
00044 
00045 class MappingFunction2D;
00046 class MappingFunction3D;
00047 
00048 /**\brief Calculate Jacobian matrices given vertex coordinates and MappingFunction
00049  */
00050 class JacobianCalculator
00051 {
00052   public:
00053     /**\brief Calculate Jacobian for surface element
00054      *
00055      * Calculate the Jacobian matrix at a specified location in a surface element.
00056      *\param mf The mapping function
00057      *\param ho_bits bit mask indicating which higher-order nodes are present in the element
00058      *               (zero for a linear element)
00059      *\param location Logical position within element at which to evaluate Jacobian
00060      *\param J_out The resulting Jacobian matrix.
00061      */
00062     void get_Jacobian_2D( const MappingFunction2D* mf, NodeSet ho_bits, Sample location, const Vector3D* vertex_coords,
00063                           size_t num_vertex, MsqMatrix< 3, 2 >& J_out, MsqError& err );
00064 
00065     /**\brief Calculate Jacobian for volume element
00066      *
00067      * Calculate the Jacobian matrix at a specified location in a volume element.
00068      *\param mf The mapping function
00069      *\param ho_bits bit mask indicating which higher-order nodes are present in the element
00070      *               (zero for a linear element)
00071      *\param location Logical position within element at which to evaluate Jacobian
00072      *\param J_out The resulting Jacobian matrix.
00073      */
00074     void get_Jacobian_3D( const MappingFunction3D* mf, NodeSet ho_bits, Sample location, const Vector3D* vertex_coords,
00075                           size_t num_vertex, MsqMatrix< 3, 3 >& J_out, MsqError& err );
00076 
00077   private:
00078     enum
00079     {
00080         MAX_ELEM_NODES = 27
00081     };
00082     size_t mIndices[MAX_ELEM_NODES];
00083     MsqVector< 3 > mDerivs3D[MAX_ELEM_NODES];
00084     MsqVector< 2 > mDerivs2D[MAX_ELEM_NODES];
00085 };
00086 
00087 }  // namespace MBMesquite
00088 
00089 #endif
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