GenericMeshReader.hpp

/*

Copyright (c) 2005-2018, University of Oxford.
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This file is part of Chaste.

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 * Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
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   contributors may be used to endorse or promote products derived from this
   software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#ifndef _GENERICMESHREADER_HPP_
#define _GENERICMESHREADER_HPP_

#include <memory>
#include <string>

#include "AbstractMeshReader.hpp"

// Possible mesh reader classes to create
#include "TrianglesMeshReader.hpp"
#include "MemfemMeshReader.hpp"
#include "VtkMeshReader.hpp"

template <unsigned ELEMENT_DIM, unsigned SPACE_DIM>
std::shared_ptr<AbstractMeshReader<ELEMENT_DIM, SPACE_DIM> > GenericMeshReader(const std::string& rPathBaseName,
                                                                             unsigned orderOfElements=1,
                                                                             unsigned orderOfBoundaryElements=1,
                                                                             bool readContainingElementsForBoundaryElements=false)
{
    std::shared_ptr<AbstractMeshReader<ELEMENT_DIM, SPACE_DIM> > p_reader;
    try
    {
        p_reader.reset(new TrianglesMeshReader<ELEMENT_DIM, SPACE_DIM>(rPathBaseName,
                                                                       orderOfElements,
                                                                       orderOfBoundaryElements,
                                                                       readContainingElementsForBoundaryElements));
    }
    catch (const Exception& r_triangles_exception)
    {
        if (orderOfElements!=1 || orderOfBoundaryElements!=1 || readContainingElementsForBoundaryElements)
        {
            EXCEPTION("Quadratic meshes are only supported in Triangles format.");
        }

        try
        {
            p_reader.reset(new MemfemMeshReader<ELEMENT_DIM, SPACE_DIM>(rPathBaseName));
        }
        catch (const Exception& r_memfem_exception)
        {
#ifdef CHASTE_VTK
            try
            {
                p_reader.reset(new VtkMeshReader<ELEMENT_DIM, SPACE_DIM>(rPathBaseName));
            }
            catch (const Exception& r_vtk_exception)
            {
#endif // CHASTE_VTK
                std::string eol("\n");
                std::string combined_message = "Could not open appropriate mesh files for " + rPathBaseName + eol;
                combined_message += "Triangle format: " + r_triangles_exception.GetShortMessage() + eol;
                combined_message += "Memfem format: " + r_memfem_exception.GetShortMessage() + eol;
#ifdef CHASTE_VTK
                combined_message += "Vtk format: " + r_vtk_exception.GetShortMessage() + eol;
#endif // CHASTE_VTK
                EXCEPTION(combined_message);
#ifdef CHASTE_VTK
            }
#endif // CHASTE_VTK
        }
    }
    return p_reader;
}

#endif //_GENERICMESHREADER_HPP_