GenericMeshReader.hpp

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*/
 
#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)
        {
            try
            {
                p_reader.reset(new VtkMeshReader<ELEMENT_DIM, SPACE_DIM>(rPathBaseName));
            }
            catch (const Exception& r_vtk_exception)
            {
                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;
                combined_message += "Vtk format: " + r_vtk_exception.GetShortMessage() + eol;
                EXCEPTION(combined_message);
            }
        }
    }
    return p_reader;
}
 
#endif //_GENERICMESHREADER_HPP_