AbstractMeshReader.hpp

/*

Copyright (C) University of Oxford, 2005-2009

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 _ABSTRACTMESHREADER_HPP_
#define _ABSTRACTMESHREADER_HPP_

#include <vector>
#include <string>
#include <fstream>
#include <iostream>
#include <sstream>
#include "Exception.hpp"

struct ElementData 
{
    std::vector<unsigned> NodeIndices;
    unsigned AttributeValue;
};

template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
class AbstractMeshReader
{
protected:
//    unsigned mNumNodeAttributes; /**< Is the number of attributes stored at each node */
//    unsigned mMaxNodeBdyMarker; /**< Is the maximum node boundary marker */
//    unsigned mNumElementNodes; /** Is the number of nodes per element*/
//    unsigned mNumElementAttributes; /**< Is the number of attributes stored for each element */
//    unsigned mMaxFaceBdyMarker; /**< Is the maximum face (or edge) boundary marker */


//    bool mIndexFromZero; /**< True if input data is numbered from zero, false otherwise */

public:
//    AbstractMeshReader() /**< Constructor */
//    {
//        mNumNodeAttributes = 0;
//        mMaxNodeBdyMarker = 0;
//        mNumElementNodes = 0;
//        mNumElementAttributes = 0;
//        mMaxFaceBdyMarker = 0;
//
//        // We have initialized all numeric variables to zero
//
//        mIndexFromZero = false; // Initially assume that nodes are not numbered from zero
//    }
    virtual ~AbstractMeshReader()
    {}

    virtual unsigned GetNumElements() const =0;

    virtual unsigned GetNumNodes() const =0;

    virtual unsigned GetNumFaces() const =0;

    virtual unsigned GetNumElementAttributes() const
    {
        // By default returns 0.  If a concrete class does read attributes
        // it needs to overload this method.          
        return 0;
    }

    virtual unsigned GetNumFaceAttributes() const
    {
        // By default returns 0.  If a concrete class does read attributes
        // it needs to overload this method.          
        return 0;
    }

    unsigned GetNumEdges() const
    {
        return GetNumFaces();
    }

    virtual std::vector<double> GetNextNode()=0;
     
    virtual void Reset()=0;     
     
    virtual ElementData GetNextElementData()=0; 
        
    virtual ElementData GetNextFaceData()=0;
    
    ElementData GetNextEdge()
    {
        return GetNextFaceData();
    }

    virtual std::string GetMeshFileBaseName()
    { 
        return "";
    }
         
};


#endif //_ABSTRACTMESHREADER_HPP_

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