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// This file is part of ff3d - http://www.freefem.org/ff3d
// Copyright (C) 2001, 2002, 2003 Stphane Del Pino
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// $Id: GmshFormatReader.hpp,v 1.5 2007/03/08 23:48:26 delpinux Exp $
#ifndef GMSH_FORMAT_READER_HPP
#define GMSH_FORMAT_READER_HPP
#include <MeshReader.hpp>
#include <string>
#include <ReferenceCounting.hpp>
#include <VerticesSet.hpp>
#include <Vector.hpp>
#include <Vertex.hpp>
#include <Hexahedron.hpp>
#include <Tetrahedron.hpp>
#include <Quadrangle.hpp>
#include <Triangle.hpp>
#include <set>
#include <vector>
#include <cstdio>
/**
* @file GmshFormatReader.hpp
* @author Stephane Del Pino
* @date Tue Dec 21 23:40:21 2004
*
* @brief Reads mesh from file in the 'gmsh' format.
*
*/
class GmshFormatReader
: public MeshReader
{
private:
struct VertexError {};
/**
* Gmsh format provides a numbered, none ordrered and none dense
* vertices list, this stores the number of read vertices.
*/
std::vector<int> __verticesNumbers;
/**
* Gmsh format provides a numbered, none ordrered and none dense
* vertices list, this provides vertices renumbering correspondance
*/
std::vector<int> __verticesCorrepondance;
/**
* elements types
*/
std::vector<short> __elementType;
/**
* References
*/
std::vector<int> __references;
/**
* References
*/
std::vector<std::vector<int> > __elementVertices;
/**
* Stores the number of nodes associated to each primitive
*
*/
std::vector<int> __numberOfPrimitiveNodes;
/**
* Array of boolean describing gmsh supported primitives by ff3d
*
*/
TinyVector<15, bool> __supportedPrimitives;
/**
* Primitives names according to there number
*
*/
std::map<int, std::string> __primitivesNames;
/**
* Adapts gmsh data to ff3d's structures
*
*/
void __proceedData();
/**
* Reads data in format 1.0
*
*/
void __readGmshFormat1();
/**
* Reads data in format 2.0
*
*/
void __readGmshFormat2();
/**
* List of allowed keyword in mesh file
*
*/
enum KeywordType {
// gmsh 1.0
NOD,
ENDNOD,
ELM,
ENDELM,
// gmsh 2.0
MESHFORMAT,
ENDMESHFORMAT,
NODES,
ENDNODES,
ELEMENTS,
ENDELEMENTS,
Unknown,
EndOfFile
};
/**
* List of known keywords
*
*/
typedef std::map<std::string, int> KeywordList;
KeywordList __keywordList; /**< The keyword list */
/**
* Type for keyword
*
*/
typedef std::pair<std::string, int> Keyword;
/**
* Skips next comments if exists
*
*/
void __skipComments();
/**
* Reads the next keyword and returns its token
*
* @return KeywordToken
*/
GmshFormatReader::Keyword __nextKeyword();
/**
* get list of vertices
*
*/
void __getVertices();
/**
* Read list of vertices
*
*/
void __readVertices();
/**
* Read all elements in format 1.0
*
*/
void __readElements1();
/**
* Read all elements in format 2.0
*
*/
void __readElements2();
/**
* Copy constructor is forbidden
*
* @param M a given GmshFormatReader
*/
GmshFormatReader(const GmshFormatReader& M);
/**
* Common interface for writing references
*
* @param references the set of computed references
* @param objectName the type of refernces
*/
void __writeReferences(const std::set<size_t>& references,
std::string objectName);
public:
/**
* Constructor
*
* @param s the filename
*/
GmshFormatReader(const std::string & s);
/**
* Destructor
*
*/
~GmshFormatReader()
{
;
}
};
#endif // GMSH_FORMAT_READER_HPP
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