00001 #ifndef rgrl_trans_reader_h_ 00002 #define rgrl_trans_reader_h_ 00003 00004 //: 00005 // \file 00006 // \author Gehua Yang, Chia-ling Tsai, Brad King 00007 // Smart reader to read in any transformation class 00008 // \date Nov 2004 00009 // \verbatim 00010 // Modifications 00011 // Dec. 2006 - Gehua Yang - move the function into a class and make it a static function. 00012 // This is to allow user to add other local-defined transformations types. 00013 // \endverbatim 00014 00015 #include <rgrl/rgrl_transformation_sptr.h> 00016 #include <vcl_iosfwd.h> 00017 #include <vcl_vector.h> 00018 00019 //: Reader class for smartly detecting various transformation classes 00020 // Users can also add user-defined classes, which takes priority before others 00021 class rgrl_trans_reader{ 00022 00023 public: 00024 //: Read a transformation from input stream 00025 // IMPORTANCE: 00026 // - Open transformation file in BINARY mode! 00027 // - Stream Pos does not work in Windows when a UNIX ascii file is opened in text mode. 00028 // 00029 // The type of transformation depends on the content of the input stream. 00030 // NULL smart ptr is returned if reading operation fails. 00031 // Please check the validity of the returned smart ptr. 00032 static 00033 rgrl_transformation_sptr read( vcl_istream& is ); 00034 00035 //: Read a transformation from input file for convenience 00036 // 00037 static 00038 rgrl_transformation_sptr read( char const* fn ); 00039 00040 //: add a transformation candidate 00041 static 00042 void add_xform( rgrl_transformation_sptr ); 00043 00044 protected: 00045 static vcl_vector< rgrl_transformation_sptr > xform_candidates_; 00046 }; 00047 00048 //: stream input operator for reading a transformation 00049 vcl_istream& operator>>( vcl_istream& is, rgrl_transformation_sptr& sptr ); 00050 00051 #endif // rgrl_trans_reader_h_
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