VtkMeshReader.hpp

/*

Copyright (C) Fujitsu Laboratories of Europe, 2009

*/

/*

Copyright (c) 2005-2021, University of Oxford.
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This file is part of Chaste.

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modification, are permitted provided that the following conditions are met:
 * 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,
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 * Neither the name of the University of Oxford nor the names of its
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   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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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/


#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 <vtkFeatureEdges.h>
#include <vtkDataSetSurfaceFilter.h>
#include <vtkSmartPointer.h>


#include "UblasVectorInclude.hpp"
#include "AbstractMeshReader.hpp"

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

    vtkSmartPointer<vtkUnstructuredGrid> mpVtkUnstructuredGrid; //This is a smart pointer to keep Vtk from deleting the object in the 1D case

    vtkGeometryFilter* mpVtkGeometryFilter;

    vtkFeatureEdges* mpVtkFilterEdges;

    bool mIndexFromZero;             
    std::ifstream mVtuFile;            
    unsigned mNumNodes;                
    unsigned mNumElements;            
    unsigned mNumFaces;                
    unsigned mNumCableElements;     
    unsigned mNodesRead;            
    unsigned mElementsRead;            
    unsigned mFacesRead;            
    unsigned mBoundaryFacesRead;    
    unsigned mBoundaryFacesSkipped; 
    unsigned mCableElementsRead;    
    unsigned mNumNodeAttributes;    
    unsigned mMaxNodeBdyMarker;     
    unsigned mNumElementAttributes; 
    unsigned mNumFaceAttributes;    
    unsigned mNumCableElementAttributes; 
    unsigned mOrderOfElements;      
    unsigned mNodesPerElement;      
    int mVtkCellType;               
    void CommonConstructor();

public:

    VtkMeshReader(std::string pathBaseName);

    VtkMeshReader(vtkUnstructuredGrid* p_vtkUnstructuredGrid);

    virtual ~VtkMeshReader();

    unsigned GetNumElements() const;

    unsigned GetNumCableElements() const;

    unsigned GetNumNodes() const;

    unsigned GetNumFaces() const;

    unsigned GetNumEdges() const;

    unsigned GetNumElementAttributes() const;

    unsigned GetNumCableElementAttributes() const;

    unsigned GetNumFaceAttributes() const;

    void Reset();

    std::vector<double> GetNextNode();

    ElementData GetNextElementData();

    ElementData GetNextFaceData();

    ElementData GetNextCableElementData();


     void GetCellData(std::string dataName, std::vector<double>& dataPayload);

    void GetPointData(std::string dataName, std::vector<double>& dataPayload);

     void GetCellData(std::string dataName, std::vector<c_vector<double,SPACE_DIM> >& dataPayload);

    void GetPointData(std::string dataName, std::vector<c_vector<double,SPACE_DIM> >& dataPayload);

    vtkUnstructuredGrid* OutputMeshAsVtkUnstructuredGrid();
};

#endif/*CHASTE_VTK*/

#endif/*VTKMESHREADER_HPP_*/