SmoothMatrix.h

00001 //===========================================================================
00002 // SINTEF LSMG library - version 1.1
00003 //
00004 // Copyright (C) 2000-2005 SINTEF ICT, Applied Mathematics, Norway.
00005 //
00006 // This program is free software; you can redistribute it and/or          
00007 // modify it under the terms of the GNU General Public License            
00008 // as published by the Free Software Foundation version 2 of the License. 
00009 //
00010 // This program is distributed in the hope that it will be useful,        
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of         
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          
00013 // GNU General Public License for more details.                           
00014 //
00015 // You should have received a copy of the GNU General Public License      
00016 // along with this program; if not, write to the Free Software            
00017 // Foundation, Inc.,                                                      
00018 // 59 Temple Place - Suite 330,                                           
00019 // Boston, MA  02111-1307, USA.                                           
00020 //
00021 // Contact information: e-mail: tor.dokken@sintef.no                      
00022 // SINTEF ICT, Department of Applied Mathematics,                         
00023 // P.O. Box 124 Blindern,                                                 
00024 // 0314 Oslo, Norway.                                                     
00025 //
00026 // Other licenses are also available for this software, notably licenses
00027 // for:
00028 // - Building commercial software.                                        
00029 // - Building software whose source code you wish to keep private.        
00030 //===========================================================================
00031 #ifndef _SMOOTHMATRIX_H
00032 #define _SMOOTHMATRIX_H
00033 
00038 class SmoothMatrix {
00039   int K_; // order
00040   int n1_, n2_; // ??? NOTE: This is not the matrix dimension, but
00041   double alphaU_; // "alpha" , "dilation" factor (1/scale)
00042   double alphaU3_; // = alphaU_^3
00043   double alphaV_;
00044   double alphaV3_; // = alphaV_^3
00045   static double innerProduct_[3][4]; // [der][trans]
00046 
00047   static double innerProductQd0_[3][3]; // [offset-1][trans]
00048   static double innerProductQd1_[3][3]; // [offset-1][trans]
00049   static double innerProductQd2_[3][3]; // [offset-1][trans]
00050   int cutOff(int ij, int rs, int mn) const;
00051 
00052 public:
00053   SmoothMatrix(int m, int n, double dU, double dV);
00054   ~SmoothMatrix(){}
00055 
00056   // indices runs from 0
00057   double operator()(int i, int j, int r, int s) const;
00058   double norm_l2() const;
00059 };
00060 
00061 #endif

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