contrib/tbl/vipl/filter/vipl_filter

Go to the documentation of this file.
00001 // This is tbl/vipl/filter/vipl_filter_abs.h
00002 #ifndef vipl_filter_abs_h_
00003 #define vipl_filter_abs_h_
00004 #ifdef VCL_NEEDS_PRAGMA_INTERFACE
00005 #pragma interface
00006 #endif
00007 //:
00008 // \file
00009 //   This class provides a non-templated abstract class for all filters.  It
00010 //   has no data and little functionality, providing only axis naming and
00011 //   composition methods.
00012 // \author
00013 //   Terry Boult, Lehigh University 1997, 1998.
00014 //
00015 // \verbatim
00016 // Modifications
00017 //   Peter Vanroose - Aug.2000 - converted to vxl
00018 // \endverbatim
00019 
00020 #ifndef FILTER_IMPTR_DEC_REFCOUNT
00021 #define FILTER_IMPTR_DEC_REFCOUNT(v) ((v)->dec_refcount(),(v)=0)
00022 #endif
00023 #ifndef FILTER_IMPTR_INC_REFCOUNT
00024 #define FILTER_IMPTR_INC_REFCOUNT(v) ((v)->inc_refcount())
00025 #endif
00026 #ifndef FILTER_KERNPTR_DEC_REFCOUNT
00027 #define FILTER_KERNPTR_DEC_REFCOUNT(v) ((v)->dec_refcount())
00028 #endif
00029 
00030 class vipl_filter_abs
00031 {
00032  public:
00033 
00034 #ifdef USE_COMPOSE_WITH
00035   // Try to set the output of this filter to be the input of ``to''. So far
00036   // this function does nothing. Arg should be a nonconst ref. Return value is
00037   // true if the filter was composed. If its not ``composable'', the filter
00038   // state is not changed.
00039   virtual bool compose_with(vipl_filter_abs& to) = 0;
00040 #endif
00041 
00042   //: Constant for accessing X_axis when appropriate for the filter. Currently==0, but please use the function...
00043   inline static int X_Axis() { return 0; }
00044   //: Constant for accessing Y_axis when appropriate for the filter. Currently==1, but please use the function...
00045   inline static int Y_Axis() { return 1; }
00046   //: Constant for accessing Z_axis when appropriate for the filter. Currently==2, but please use the function...
00047   inline static int Z_Axis() { return 2; }
00048   //: Constant for accessing T_axis when appropriate for the filter. Currently==3, but please use the function...
00049   inline static int T_Axis() { return 3; }
00050 };
00051 
00052 #endif // vipl_filter_abs_h_