RougheningSquareMatrix.h

Go to the documentation of this file.

//-------------------------------------------------------------------------------------------------------
// The MIT License (MIT)
//
// Copyright (c) 2021 Yoshiya Usui
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//-------------------------------------------------------------------------------------------------------
#ifndef DBLDEF_ROUGHENING_SQUARE_MATRIX
#define DBLDEF_ROUGHENING_SQUARE_MATRIX
 
#include "DoubleSparseSquareUnsymmetricMatrix.h"
#include "DoubleSparseSquareSymmetricMatrix.h"
 
class RougheningSquareMatrix : public DoubleSparseSquareUnsymmetricMatrix {
 
public:
 
    //Default Constructer
    explicit RougheningSquareMatrix();
 
    //Constructer
    explicit RougheningSquareMatrix( const int nEq, const int nRhs = 1 );
 
    //Destructer
    virtual ~RougheningSquareMatrix();
    
    //Input component of matrix.
    virtual void setStructureByTripletFormat( const int row, const int col );
    
    // Set matrix structure ( locations of non-zero components ) and add values by triplet format
    virtual void setStructureAndAddValueByTripletFormat( const int row, const int col, const double val );
    
    //Add non-zero value to matrix
    virtual void addNonZeroValues( const int row, const int col, const double val );
    
    //Make [R]T[R] matrix, where [R] is a constraining matrix
    void makeRTRMatrix( DoubleSparseSquareSymmetricMatrix& RTRMatrix, const double smallValueOnDiagonals = 0.0 ) const;
 
    // Calculate model roughness
    double calcModelRoughness( const double* modelVec ) const;
 
    // Calculate model roughness for difference filter
    double calcModelRoughnessForDifferenceFilter( const double* modelVec ) const;
 
    // Calculate vector of model roughness
    void calcVectorOfModelRoughness( const double* modelVec, double* roughnessVec ) const;
 
    // Postmultiply diagonal matrix
    void postmultiplyDiagonalMatrix( const double* diagMatrix );
 
    //Calculaste singular values
    void calcSingularValues() const;
 
    //Calculaste eigen values
    void calcEigenValues() const;
 
    // Output roughneing matrix
    void outputRougheningMatrix() const;
 
private:
    //Copy constructer
    RougheningSquareMatrix(const RougheningSquareMatrix &matrix );
 
    // Assignment operator
    RougheningSquareMatrix& operator=(const RougheningSquareMatrix& rhs);
 
};
 
#endif