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fit_accum.h

00001 /***************************************************************************
00002  *  fit_accum.h - Header for 'fitted circle' accumulator
00003  *                used by Fix-Point RCD Algorithm
00004  *
00005  *  Created: Sat Sep 10 17:25:55 2005
00006  *  Copyright  2005  Hu Yuxiao <Yuxiao.Hu@rwth-aachen.de>
00007  *
00008  ****************************************************************************/
00009                                                                                 
00010 /*  This program is free software; you can redistribute it and/or modify
00011  *  it under the terms of the GNU General Public License as published by
00012  *  the Free Software Foundation; either version 2 of the License, or
00013  *  (at your option) any later version. A runtime exception applies to
00014  *  this software (see LICENSE.GPL_WRE file mentioned below for details).
00015  *
00016  *  This program is distributed in the hope that it will be useful,
00017  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  *  GNU Library General Public License for more details.
00020  *
00021  *  Read the full text in the LICENSE.GPL_WRE file in the doc directory.
00022  */
00023                                                                                 
00024 #ifndef __FIREVISION_MODELS_SHAPE_ACCUMULATORS_FIT_ACCUM_H_
00025 #define __FIREVISION_MODELS_SHAPE_ACCUMULATORS_FIT_ACCUM_H_
00026 
00027 #include <utils/math/types.h>
00028 #include <fvutils/base/types.h>
00029 
00030 namespace firevision {
00031 #if 0 /* just to make Emacs auto-indent happy */
00032 }
00033 #endif
00034 
00035 class Circle;
00036 
00037 class FitAccum
00038 {
00039 private:
00040         static const float TOO_SMALL_DELTA;
00041 
00042 private:
00043         int count;
00044         float A00, A01, A02;
00045         float A10, A11, A12;
00046         float A20, A21, A22;
00047 
00048         float  b0,  b1,  b2;
00049 
00050 public:
00051         FitAccum(void);
00052         ~FitAccum(void);
00053 
00054         void reset(void);
00055         void addPoint(const fawkes::point_t&);    // add a point
00056         void removePoint(const fawkes::point_t&); // remove a point
00057 
00058         int getCount(void) const;
00059         Circle* getCircle(void) const;
00060 };
00061 
00062 } // end namespace firevision
00063 
00064 #endif
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