PottsMeshReader.hpp

/*

Copyright (c) 2005-2012, 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,
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   contributors may be used to endorse or promote products derived from this
   software without specific prior written permission.

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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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*/

#ifndef POTTSMESHREADER_HPP_
#define POTTSMESHREADER_HPP_

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

#include "AbstractMeshReader.hpp"

struct PottsElementData
{
    std::vector<unsigned> NodeIndices; 
    std::vector<bool> Orientations; 
    unsigned AttributeValue; 
    unsigned ContainingElement; 
};

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

    std::string mFilesBaseName;

    std::ifstream mNodesFile;

    std::ifstream mElementsFile;

    bool mIndexFromZero;

    unsigned mNumNodes;

    unsigned mNumElements;

    unsigned mNodesRead;

    unsigned mElementsRead;

    unsigned mNumNodeAttributes;

    unsigned mNumElementAttributes;

    void OpenFiles();

    void OpenNodeFile();

    void OpenElementsFile();

    void ReadHeaders();

    void CloseFiles();

    void GetNextLineFromStream(std::ifstream& fileStream, std::string& rawLine);

public:

    PottsMeshReader(std::string pathBaseName);

    ~PottsMeshReader()
    {}

    unsigned GetNumElements() const;

    unsigned GetNumNodes() const;

    unsigned GetNumElementAttributes() const;

    unsigned GetNumFaces() const;

    ElementData GetNextFaceData();

    void Reset();

    std::vector<double> GetNextNode();

    ElementData GetNextElementData();
};

#endif /*POTTSMESHREADER_HPP_*/