algebra_debug_writer.h

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/*
 * Copyright (c) 2012-2015:  G-CSC, Goethe University Frankfurt
 * Author: Andreas Vogel
 * 
 * This file is part of UG4.
 * 
 * UG4 is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 3 (as published by the
 * Free Software Foundation) with the following additional attribution
 * requirements (according to LGPL/GPL v3 §7):
 * 
 * (1) The following notice must be displayed in the Appropriate Legal Notices
 * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (2) The following notice must be displayed at a prominent place in the
 * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
 * 
 * (3) The following bibliography is recommended for citation and must be
 * preserved in all covered files:
 * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
 *   parallel geometric multigrid solver on hierarchically distributed grids.
 *   Computing and visualization in science 16, 4 (2013), 151-164"
 * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
 *   flexible software system for simulating pde based models on high performance
 *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
 * 
 * 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 Lesser General Public License for more details.
 */
 
#ifndef __H__LIB_ALGEBRA__OPERATOR__ALGEBRA_DEBUG_WRITER__
#define __H__LIB_ALGEBRA__OPERATOR__ALGEBRA_DEBUG_WRITER__
 
#include "debug_writer.h"
#include "lib_algebra/common/connection_viewer_output.h"
#include "common/util/file_util.h"
 
namespace ug{
 
 
template <typename TAlgebra>
class AlgebraDebugWriter : public IDebugWriter<TAlgebra>
{
  public:
    typedef TAlgebra algebra_type;
 
    typedef typename algebra_type::vector_type vector_type;
 
    typedef typename algebra_type::matrix_type matrix_type;
 
    typedef IDebugWriter<TAlgebra> base_type;
    using base_type::get_base_dir;
 
  public:
    AlgebraDebugWriter() : base_type() {}
 
    virtual void write_vector(const vector_type& vec,
                              const char* filename)
    {
      switch (base_type::current_dimension())
      {
        case 1: write_vector_dim<1>(vec, filename); break;
        case 2: write_vector_dim<2>(vec, filename); break;
        case 3: write_vector_dim<3>(vec, filename); break;
        default: UG_ASSERT(0, "Dimension not implemented.");
      }
    }
 
    virtual void write_matrix(const matrix_type& mat,
                              const char* filename)
    {
    //  check name
      if( !FileTypeIs( filename, ".mat" ) ) {
        UG_THROW( "Only '.mat' format supported for matrices, but"
                  " filename is '" << filename << "'.");
      }
    // write to file
      switch (base_type::current_dimension())
      {
        case 1: write_matrix_dim<1>(mat, filename); break;
        case 2: write_matrix_dim<2>(mat, filename); break;
        case 3: write_matrix_dim<3>(mat, filename); break;
        default: UG_ASSERT(0, "Dimension not implemented.");
      }
 
    }
  private:
    template <int dim>
    void write_vector_dim(const vector_type& vec, const char* filename)
    {
      std::string name = get_base_dir() + "/" + filename;
      const std::vector<MathVector<dim> > &posvec = base_type::template get_positions<dim>();
      // check size
      if(vec.size() > posvec.size())
        UG_THROW("'AlgebraDebugWriter::write_vector':"
             " Number of positions does not match. Vector has " 
             << vec.size() << " elements, but " << posvec.size() << " positions were supplied!\n");
 
      // write connection viewer output to file
      ConnectionViewer::WriteVectorPar<vector_type, MathVector<dim> >(name, vec, &posvec[0], dim);
 
    }
 
    template <int dim>
    void write_matrix_dim(const matrix_type& mat,
                                  const char* filename)
    {
      std::string name = get_base_dir() + "/" + filename;
      const std::vector<MathVector<dim> > &posvec = base_type::template get_positions<dim>();
    // check size
      if(mat.num_rows() > posvec.size() || mat.num_cols() > posvec.size())
              UG_THROW("'AlgebraDebugWriter::write_matrix':"
                  " Number of positions does not match: Matrix has "
                  << mat.num_rows() << " rows, " << mat.num_cols() << " cols, but "
                  << posvec.size()<< "positions were supplied." << "\n");
      // write to connection viewer
      ConnectionViewer::WriteMatrixPar<matrix_type, MathVector<dim> >
                ( name, mat, &base_type::template get_positions<dim>()[0], dim);
 
    }
 
};
 
} // end namespace ug
 
#endif /* __H__LIB_ALGEBRA__OPERATOR__ALGEBRA_DEBUG_WRITER__ */