VertexMeshReader.hpp

00001 /*
00002 
00003 Copyright (C) University of Oxford, 2005-2011
00004 
00005 University of Oxford means the Chancellor, Masters and Scholars of the
00006 University of Oxford, having an administrative office at Wellington
00007 Square, Oxford OX1 2JD, UK.
00008 
00009 This file is part of Chaste.
00010 
00011 Chaste is free software: you can redistribute it and/or modify it
00012 under the terms of the GNU Lesser General Public License as published
00013 by the Free Software Foundation, either version 2.1 of the License, or
00014 (at your option) any later version.
00015 
00016 Chaste is distributed in the hope that it will be useful, but WITHOUT
00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00019 License for more details. The offer of Chaste under the terms of the
00020 License is subject to the License being interpreted in accordance with
00021 English Law and subject to any action against the University of Oxford
00022 being under the jurisdiction of the English Courts.
00023 
00024 You should have received a copy of the GNU Lesser General Public License
00025 along with Chaste. If not, see <http://www.gnu.org/licenses/>.
00026 
00027 */
00028 #ifndef VERTEXMESHREADER2D_HPP_
00029 #define VERTEXMESHREADER2D_HPP_
00030 
00031 #include <string>
00032 #include <fstream>
00033 #include <cassert>
00034 #include <vector>
00035 
00036 #include "Exception.hpp"
00037 #include "AbstractMeshReader.hpp"
00038 
00043 struct VertexElementData
00044 {
00045     std::vector<unsigned> NodeIndices; 
00046     std::vector<ElementData> Faces; 
00047     std::vector<bool> Orientations; 
00048     unsigned AttributeValue; 
00049     unsigned ContainingElement; 
00050 };
00051 
00055  template<unsigned ELEMENT_DIM, unsigned SPACE_DIM>
00056 class VertexMeshReader : public AbstractMeshReader<ELEMENT_DIM, SPACE_DIM>
00057 {
00058 private:
00059 
00061     std::string mFilesBaseName;
00062 
00064     std::ifstream mNodesFile;
00065 
00067     std::ifstream mElementsFile;
00068 
00070     bool mIndexFromZero;
00071 
00073     unsigned mNumNodes;
00074 
00076     unsigned mNumElements;
00077 
00079     unsigned mNodesRead;
00080 
00082     unsigned mElementsRead;
00083 
00085     unsigned mNumNodeAttributes;
00086 
00088     unsigned mNumElementAttributes;
00089 
00093     void OpenFiles();
00094 
00098     void OpenNodeFile();
00099 
00103     void OpenElementsFile();
00104 
00108     void ReadHeaders();
00109 
00113     void CloseFiles();
00114 
00121     void GetNextLineFromStream(std::ifstream& fileStream, std::string& rawLine);
00122 
00123 public:
00124 
00130     VertexMeshReader(std::string pathBaseName);
00131 
00135     ~VertexMeshReader()
00136     {}
00137 
00141     unsigned GetNumElements() const;
00142 
00146     unsigned GetNumNodes() const;
00147 
00151     unsigned GetNumElementAttributes() const;
00152 
00156     unsigned GetNumFaces() const;
00157 
00161     ElementData GetNextFaceData();
00162 
00164     unsigned GetNumEdges() const;
00165 
00169     void Reset();
00170 
00174     std::vector<double> GetNextNode();
00175 
00179     ElementData GetNextElementData();
00180 
00185     VertexElementData GetNextElementDataWithFaces();
00186 
00187 };
00188 
00189 
00190 #endif /*VERTEXMESHREADER2D_HPP_*/

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