vpMomentAlpha.h

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2015 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Alpha moment descriptor for in-plane orientation.
 *
 * Authors:
 * Filip Novotny
 *
 *****************************************************************************/

#ifndef __MOMENTALPHA_H__
#define __MOMENTALPHA_H__

#include <visp3/core/vpMoment.h>



class VISP_EXPORT vpMomentAlpha : public vpMoment {
 private:   
    bool isRef;
    bool symmetric;
    std::vector<double> ref;
    double alphaRef;
 public:    
    
        vpMomentAlpha();
        vpMomentAlpha(std::vector<double>& ref,double alphaRef);

        void compute();
        double get() const { return values[0]; }
        const char* name() const {return "vpMomentAlpha";}

        inline bool is_ref() const
        {
          if (isRef)
            return true;
          else
            return false;
        }

        inline bool is_symmetric() const
        {
          if (symmetric)
            return true;
          else
            return false;
        }

  friend VISP_EXPORT std::ostream & operator<<(std::ostream & os, const vpMomentAlpha& v);
  void  printDependencies(std::ostream& os) const;
};

#endif