HoughTransformation.h

/**************************************************************************
 * basf2 (Belle II Analysis Software Framework)                           *
 * Author: The Belle II Collaboration                                     *
 *                                                                        *
 * See git log for contributors and copyright holders.                    *
 * This file is licensed under LGPL-3.0, see LICENSE.md.                  *
 **************************************************************************/
 
//-----------------------------------------------------------------------------
// Description : An abstract class to represent a Hough transformation.
//-----------------------------------------------------------------------------
 
#ifndef TRGCDCHoughTransformation_FLAG_
#define TRGCDCHoughTransformation_FLAG_
 
#include <string>
 
#ifdef TRGCDC_SHORT_NAMES
#define TCHTransformation TRGCDCHoughTransformation
#endif
 
namespace Belle2 {
  class TRGPoint2D;
 
  class TRGCDCHoughTransformation {
 
  public:
    TRGCDCHoughTransformation(const std::string& name);
 
    virtual ~TRGCDCHoughTransformation();
 
  public:// Selectors
    std::string name(void) const;
 
    virtual float y(float xReal, float yReal, float x) const = 0;
 
    virtual bool diverge(float xReal, float yReal, float x0, float x1)
    const = 0;
 
    virtual bool positiveDiverge(float xReal, float yReal, float x0, float x1)
    const = 0;
 
    virtual bool negativeDiverge(float xReal, float yReal, float x0, float x1)
    const = 0;
 
//     /// returns a gradient at given regsion.
//     virtual float gradient(float xReal, float yReal, float x) const = 0;
 
    virtual TRGPoint2D convert(const TRGPoint2D&) const;
 
  public:// Modifiers
 
  private:
    const std::string _name;
  };
 
  inline
  std::string
  TRGCDCHoughTransformation::name(void) const
  {
    return _name;
  }
 
} // namespace Belle
 
#endif