VtkMeshReader.hpp

/*

Copyright (C) Fujitsu Laboratories of Europe, 2009

*/

/*

Copyright (C) University of Oxford, 2005-2010

University of Oxford means the Chancellor, Masters and Scholars of the
University of Oxford, having an administrative office at Wellington
Square, Oxford OX1 2JD, UK.

This file is part of Chaste.

Chaste is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 2.1 of the License, or
(at your option) any later version.

Chaste 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. The offer of Chaste under the terms of the
License is subject to the License being interpreted in accordance with
English Law and subject to any action against the University of Oxford
being under the jurisdiction of the English Courts.

You should have received a copy of the GNU Lesser General Public License
along with Chaste. If not, see <http://www.gnu.org/licenses/>.

*/


#ifndef VTKMESHREADER_HPP_
#define VTKMESHREADER_HPP_

#include <vector>
#include <string>
#include <fstream>
#include <sstream>
#include <cassert>

#ifdef CHASTE_VTK
//Requires  "sudo aptitude install libvtk5-dev" or similar
#define _BACKWARD_BACKWARD_WARNING_H 1 //Cut out the strstream deprecated warning for now (gcc4.3)
#include <vtkDataArray.h>
#include <vtkDoubleArray.h>
#include <vtkCellData.h>
#include <vtkPointData.h>
#include <vtkTetra.h>
#include <vtkUnstructuredGrid.h>
#include <vtkUnstructuredGridReader.h>
#include <vtkXMLUnstructuredGridReader.h>
#include <vtkGeometryFilter.h>
#include <vtkGenericGeometryFilter.h>
#include <vtkDataCompressor.h>

#include "AbstractMeshReader.hpp"

template <unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class VtkMeshReader : public AbstractMeshReader<ELEMENT_DIM, SPACE_DIM>
{
private:

    vtkUnstructuredGrid* mpVtkUnstructuredGrid;

    vtkGeometryFilter* mpVtkGeometryFilter;

    bool mIndexFromZero;             
    std::ifstream mVtuFile;            
    unsigned mNumNodes;                
    unsigned mNumElements;            
    unsigned mNumFaces;                
    unsigned mNodesRead;            
    unsigned mElementsRead;            
    unsigned mFacesRead;            
    unsigned mBoundaryFacesRead;    
    unsigned mNumNodeAttributes;     
    unsigned mMaxNodeBdyMarker;     
    unsigned mNumElementAttributes; 
    unsigned mNumFaceAttributes;     
    unsigned mOrderOfElements;        
    unsigned mNodesPerElement;        
public:

    VtkMeshReader(std::string pathBaseName);

    VtkMeshReader(vtkUnstructuredGrid* p_vtkUnstructuredGrid);

    virtual ~VtkMeshReader();

    unsigned GetNumElements() const;

    unsigned GetNumNodes() const;

    unsigned GetNumFaces() const;

    unsigned GetNumEdges() const;

    unsigned GetNumElementAttributes() const;

    unsigned GetNumFaceAttributes() const;

    void Reset();

    void Initialize();

    std::vector<double> GetNextNode();

    ElementData GetNextElementData();

    ElementData GetNextFaceData();


    std::vector<double> GetCellData(std::string dataName);

    std::vector<double> GetPointData(std::string dataName);

    vtkUnstructuredGrid* OutputMeshAsVtkUnstructuredGrid();

};

#endif/*CHASTE_VTK*/

#endif/*VTKMESHREADER_HPP_*/

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