AbstractTetrahedralMeshWriter.hpp

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*/


#ifndef _ABSTRACTTETRAHEDRALMESHWRITER_HPP_
#define _ABSTRACTTETRAHEDRALMESHWRITER_HPP_

// Forward declaration prevents circular include chain
template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class AbstractTetrahedralMesh;

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class DistributedTetrahedralMesh;

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class MixedDimensionMesh;

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
struct MeshWriterIterators;

#include <fstream>
#include <sstream>
#include <boost/scoped_array.hpp>

#include "AbstractMeshWriter.hpp"
#include "AbstractMesh.hpp"
#include "NodeMap.hpp"

#include "GenericEventHandler.hpp"
class MeshEventHandler : public GenericEventHandler<11, MeshEventHandler>
{
public:
    static const char* EventName[11]; 
    typedef enum
    {
        TRIANGLES=0,
        BINTRI,
        VTK,
        PVTK,
        NODE,
        ELE,
        FACE,
        NCL,
        COMM1,
        COMM2
    } EventType;
};

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class AbstractTetrahedralMeshWriter : public AbstractMeshWriter<ELEMENT_DIM, SPACE_DIM>
{
private:
    void PostElement(unsigned globalIndex, unsigned indices[], unsigned numIndices, unsigned tag, double attribute)
    {
        MeshEventHandler::BeginEvent(MeshEventHandler::COMM1);
        MPI_Ssend(indices, numIndices, MPI_UNSIGNED, 0,
                  tag, //Elements sent with tags offset
                  PETSC_COMM_WORLD);
        MeshEventHandler::EndEvent(MeshEventHandler::COMM1);
        // Attribute value has the same tag (assume that it doesn't overtake the previous message)
        MeshEventHandler::BeginEvent(MeshEventHandler::COMM2);
        MPI_Ssend(&attribute, 1, MPI_DOUBLE, 0,
                  tag, //Elements sent with tags offset
                  PETSC_COMM_WORLD);
        MeshEventHandler::EndEvent(MeshEventHandler::COMM2);
    }
    void UnpackElement(ElementData& rElementData, unsigned globalIndex, unsigned numIndices, unsigned tag)
    {
        assert( numIndices == rElementData.NodeIndices.size());
        boost::scoped_array<unsigned> raw_indices(new unsigned[numIndices]);
        MPI_Status status;
        // Get it from elsewhere
        MeshEventHandler::BeginEvent(MeshEventHandler::COMM1);
        MPI_Recv(raw_indices.get(), numIndices, MPI_UNSIGNED, MPI_ANY_SOURCE,
                 tag,
                 PETSC_COMM_WORLD, &status);
        MeshEventHandler::EndEvent(MeshEventHandler::COMM1);
        // Convert to std::vector
        for (unsigned j=0; j< rElementData.NodeIndices.size(); j++)
        {
            rElementData.NodeIndices[j] = raw_indices[j];
        }

        // Attribute value has the same tag (assume that it doesn't overtake the previous message)
        double attribute;
        MeshEventHandler::BeginEvent(MeshEventHandler::COMM2);
        MPI_Recv(&attribute, 1U, MPI_DOUBLE, MPI_ANY_SOURCE,
                 tag,
                 PETSC_COMM_WORLD, &status);
        MeshEventHandler::EndEvent(MeshEventHandler::COMM2);

        // Attribute value
        rElementData.AttributeValue = attribute;
    }

    virtual void WriteFilesUsingParallelMesh(bool keepOriginalElementIndexing=true);

    void WriteNclFile(AbstractTetrahedralMesh<ELEMENT_DIM, SPACE_DIM>& rMesh,
                      bool invertMeshPermutation=false);

    virtual void CreateFilesWithHeaders();

    virtual void AppendLocalDataToFiles();

    virtual void WriteFilesFooter();

    NodeMap* mpNodeMap; 
protected:

    unsigned mNodesPerElement; 
    unsigned mNodesPerBoundaryElement; 
    AbstractTetrahedralMesh<ELEMENT_DIM,SPACE_DIM>* mpMesh; 
    DistributedTetrahedralMesh<ELEMENT_DIM,SPACE_DIM>* mpDistributedMesh; 
    MixedDimensionMesh<ELEMENT_DIM,SPACE_DIM>* mpMixedMesh; 
    MeshWriterIterators<ELEMENT_DIM,SPACE_DIM>* mpIters; 
    bool mIndexFromZero; 
    bool mWriteMetaFile; 
    unsigned mNodeCounterForParallelMesh; 
    unsigned mElementCounterForParallelMesh;
    unsigned mBoundaryElementCounterForParallelMesh;
    unsigned mCableElementCounterForParallelMesh;
    bool mFilesAreBinary;  
public:

    AbstractTetrahedralMeshWriter(const std::string& rDirectory,
                       const std::string& rBaseName,
                       const bool clearOutputDir=true);

    virtual ~AbstractTetrahedralMeshWriter();

    virtual void WriteFilesUsingMesh(AbstractTetrahedralMesh<ELEMENT_DIM, SPACE_DIM>& rMesh,
                                     bool keepOriginalElementIndexing=true);

    void WriteFilesUsingMeshReaderAndMesh(AbstractMeshReader<ELEMENT_DIM, SPACE_DIM>& rMeshReader,
                                          AbstractTetrahedralMesh<ELEMENT_DIM, SPACE_DIM>& rMesh);

    std::vector<double> GetNextNode();


    ElementData GetNextElement();

    ElementData GetNextBoundaryElement();

    ElementData GetNextCableElement();
};

#endif //_ABSTRACTTETRAHEDRALMESHWRITER_HPP_