OpenMesh
OpenMesh/Core/IO/reader/OFFReader.hh
00001 /*===========================================================================*\
00002  *                                                                           *
00003  *                               OpenMesh                                    *
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00005  *                           www.openmesh.org                                *
00006  *                                                                           *
00007  *---------------------------------------------------------------------------*
00008  *  This file is part of OpenMesh.                                           *
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00010  *  OpenMesh is free software: you can redistribute it and/or modify         *
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00016  *  If other files instantiate templates or use macros                       *
00017  *  or inline functions from this file, or you compile this file and         *
00018  *  link it with other files to produce an executable, this file does        *
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00020  *  GNU Lesser General Public License. This exception does not however       *
00021  *  invalidate any other reasons why the executable file might be            *
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00023  *                                                                           *
00024  *  OpenMesh is distributed in the hope that it will be useful,              *
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00028  *                                                                           *
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00033 \*===========================================================================*/
00034 
00035 /*===========================================================================*\
00036  *                                                                           *
00037  *   $Revision: 362 $                                                         *
00038  *   $Date: 2011-01-26 10:21:12 +0100 (Mi, 26 Jan 2011) $                   *
00039  *                                                                           *
00040 \*===========================================================================*/
00041 
00042 
00043 //=============================================================================
00044 //
00045 //  Implements a reader module for OFF files
00046 //
00047 //=============================================================================
00048 
00049 
00050 #ifndef __OFFREADER_HH__
00051 #define __OFFREADER_HH__
00052 
00053 
00054 //=== INCLUDES ================================================================
00055 
00056 
00057 #include <iostream>
00058 #include <string>
00059 #include <stdio.h>
00060 #include <fstream>
00061 
00062 #include <OpenMesh/Core/System/config.h>
00063 #include <OpenMesh/Core/Utils/SingletonT.hh>
00064 #include <OpenMesh/Core/IO/reader/BaseReader.hh>
00065 
00066 #ifndef WIN32
00067 #include <string.h>
00068 #endif
00069 
00070 //== NAMESPACES ===============================================================
00071 
00072 
00073 namespace OpenMesh {
00074 namespace IO {
00075 
00076 
00077 //== FORWARDS =================================================================
00078 
00079 
00080 class BaseImporter;
00081 
00082 
00083 //== IMPLEMENTATION ===========================================================
00084 
00085 
00114 class _OFFReader_ : public BaseReader
00115 {
00116 public:
00117 
00118   _OFFReader_();
00119 
00121   virtual ~_OFFReader_() {};
00122 
00123   std::string get_description() const { return "Object File Format"; }
00124   std::string get_extensions()  const { return "off"; }
00125   std::string get_magic()       const { return "OFF"; }
00126 
00127   bool read(const std::string& _filename,
00128             BaseImporter& _bi,
00129             Options& _opt);
00130 
00131   bool can_u_read(const std::string& _filename) const;
00132 
00133   bool read(std::istream& _in, BaseImporter& _bi, Options& _opt );
00134 
00135 private:
00136 
00137   bool can_u_read(std::istream& _is) const;
00138 
00139   bool read_ascii(std::istream& _in, BaseImporter& _bi) const;
00140   bool read_binary(std::istream& _in, BaseImporter& _bi, bool swap) const;
00141 
00142   void readValue(std::istream& _in, float& _value) const;
00143   void readValue(std::istream& _in, int& _value) const;
00144   void readValue(std::istream& _in, unsigned int& _value) const;
00145 
00146   int getColorType(std::string & _line, bool _texCoordsAvailable) const;
00147 
00148   //available options for reading
00149   mutable Options options_;
00150   //options that the user wants to read
00151   mutable Options userOptions_;
00152 };
00153 
00154 
00155 //== TYPE DEFINITION ==========================================================
00156 
00157 
00159 extern _OFFReader_  __OFFReaderInstance;
00160 _OFFReader_&  OFFReader();
00161 
00162 
00163 //=============================================================================
00164 } // namespace IO
00165 } // namespace OpenMesh
00166 //=============================================================================
00167 #endif
00168 //=============================================================================