MOAB: Mesh Oriented datABase  (version 5.2.1)
LVQDTargetCalculator.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 LVQDTargetCalculator.hpp
00028  *  \brief
00029  *  \author Jason Kraftcheck
00030  */
00031 
00032 #ifndef MSQ_LVQD_TARGET_CALCULATOR_HPP
00033 #define MSQ_LVQD_TARGET_CALCULATOR_HPP
00034 
00035 #include "Mesquite.hpp"
00036 #include "TargetCalculator.hpp"
00037 
00038 namespace MBMesquite
00039 {
00040 
00041 /** \brief Construct target matrices from factors of guide matrices
00042  *
00043  * Given a set of guide matrices, extract certain properties
00044  * from them and combine those properties to produce a target
00045  * matrix.
00046  * \f$\mathbf{W}=\lambda(\mathbf{W_\lambda}) \times \mathbf{V}(\mathbf{W_V}) \times
00047  * \mathbf{Q}(\mathbf{W_Q}) \times \mathbf{\Delta}(\mathbf{W_\Delta})\f$
00048  * - \f$\lambda\f$ - scalar - size component of \f$\mathbf{W_\lambda}\f$
00049  * - \f$\mathbf{V}\f$ - 3x3 or 3x2 - orientation component of \f$\mathbf{W_V}\f$
00050  * - \f$\mathbf{Q}\f$ - 3x3 or 2x2 - shape component of \f$\mathbf{W_Q}\f$
00051  * - \f$\mathbf{\Delta}\f$ - 3x3 or 2x2 - aspect ratio component of \f$\mathbf{W_\Delta}\f$
00052  */
00053 class LVQDTargetCalculator : public TargetCalculator
00054 {
00055   public:
00056     LVQDTargetCalculator( TargetCalculator* lambda_source, TargetCalculator* V_source, TargetCalculator* Q_source,
00057                           TargetCalculator* delta_source );
00058 
00059     ~LVQDTargetCalculator();
00060 
00061     bool get_3D_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 3, 3 >& W_out, MsqError& err );
00062 
00063     bool get_surface_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 3, 2 >& W_out, MsqError& err );
00064 
00065     bool get_2D_target( PatchData& pd, size_t element, Sample sample, MsqMatrix< 2, 2 >& W_out, MsqError& err );
00066 
00067     bool have_surface_orient() const;
00068 
00069   private:
00070     int add_source( TargetCalculator* source );
00071 
00072     bool evaluate_guide_2D( PatchData& pd, size_t element, Sample sample, int idx, double& lambda, MsqMatrix< 3, 2 >& V,
00073                             MsqMatrix< 2, 2 >& Q, MsqMatrix< 2, 2 >& delta, MsqError& err );
00074 
00075     TargetCalculator* uniqueGuides[4];    //!< Up to 4 unique target sources
00076     int numUniqueGuides;                  //!< Number of unique target sources
00077     int lambdaIdx, vIdx, qIdx, deltaIdx;  //!< Index into uniqueGuides for respective source,
00078                                           //!< or -1 for no source.
00079 };
00080 
00081 }  // namespace MBMesquite
00082 
00083 #endif
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