GMatrixTools.cpp
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/***************************************************************************
* GMatrixTools.cpp - Matrix tools *
* ----------------------------------------------------------------------- *
* copyright (C) 2009 by Jurgen Knodlseder *
* ----------------------------------------------------------------------- *
* *
* 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 3 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 for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
***************************************************************************/
/* __ Includes ___________________________________________________________ */
#include "GMatrixTools.hpp"
/* __ Method name definitions ____________________________________________ */
#define G_SYM_1 "GSymMatrix sym_matrix(const GMatrix&)"
#define G_SYM_2 "GSymMatrix sym_matrix(const GMatrixSparse&)"
/***********************************************************************//**
* @brief GSymMatrix to GMatrix storage class convertor
*
* @param[in] m GSymMatrix to be converted
***************************************************************************/
GMatrix matrix(const GSymMatrix& m)
{
// Allocate matrix
GMatrix result = GMatrix(m.rows(), m.cols());
// Fill matrix
for (int col = 0; col < m.cols(); ++col) {
for (int row = 0; row < m.rows(); ++row)
result(row, col) = m(row, col);
}
// Return
return result;
}
/***********************************************************************//**
* @brief GSparseMatrix to GMatrix storage class convertor
*
* @param[in] m GSparseMatrix to be converted
***************************************************************************/
GMatrix matrix(const GSparseMatrix& m)
{
// Allocate matrix
GMatrix result = GMatrix(m.rows(), m.cols());
// Fill matrix
for (int col = 0; col < m.cols(); ++col) {
for (int row = 0; row < m.rows(); ++row)
result(row, col) = m(row, col);
}
// Return
return result;
}
/***********************************************************************//**
* @brief GMatrix to GSymMatrix storage class convertor
*
* @param[in] m GMatrix to be converted
***************************************************************************/
GSymMatrix sym_matrix(const GMatrix& m)
{
// Allocate matrix
GSymMatrix result = GSymMatrix(m.rows(), m.cols());
// Fill matrix
for (int col = 0; col < m.cols(); ++col) {
for (int row = col; row < m.rows(); ++row) {
double value_ll = m(row,col);
double value_ur = m(col,row);
if (value_ll != value_ur)
throw GException::matrix_not_symmetric(G_SYM_1, m.rows(), m.cols());
result(row, col) = m(row, col);
}
}
// Return
return result;
}
/***********************************************************************//**
* @brief GSparseMatrix to GSymMatrix storage class convertor
*
* @param[in] m GSparseMatrix to be converted
***************************************************************************/
GSymMatrix sym_matrix(const GSparseMatrix& m)
{
// Allocate matrix
GSymMatrix result = GSymMatrix(m.rows(), m.cols());
// Fill matrix
for (int col = 0; col < m.cols(); ++col) {
for (int row = col; row < m.rows(); ++row) {
double value_ll = m(row,col);
double value_ur = m(col,row);
if (value_ll != value_ur)
throw GException::matrix_not_symmetric(G_SYM_2, m.rows(), m.cols());
result(row, col) = m(row, col);
}
}
// Return
return result;
}
/***********************************************************************//**
* @brief GMatrix to GSparseMatrix storage class convertor
*
* @param[in] m GMatrix to be converted
***************************************************************************/
GSparseMatrix sparse_matrix(const GMatrix& m)
{
// Allocate matrix
GSparseMatrix result = GSparseMatrix(m.rows(), m.cols());
// Fill matrix
for (int col = 0; col < m.cols(); ++col) {
for (int row = 0; row < m.rows(); ++row)
result(row, col) = m(row, col);
}
// Return
return result;
}
/***********************************************************************//**
* @brief GSymMatrix to GSparseMatrix storage class convertor
*
* @param[in] m GSymMatrix to be converted
***************************************************************************/
GSparseMatrix sparse_matrix(const GSymMatrix& m)
{
// Allocate matrix
GSparseMatrix result = GSparseMatrix(m.rows(), m.cols());
// Fill matrix
for (int col = 0; col < m.cols(); ++col) {
for (int row = 0; row < m.rows(); ++row)
result(row, col) = m(row, col);
}
// Return
return result;
}