/home/marsyas/marsyas/src/marsyas/SOM.h

/*
** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
**  
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
** 
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
** 
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software 
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

#ifndef MARSYAS_SOM_H
#define MARSYAS_SOM_H

#include "MarSystem.h"  

#include <cstdlib>

namespace Marsyas
{
class SOM: public MarSystem
{
private: 
  void addControls();
    void myUpdate(MarControlPtr sender);
    
  MarControlPtr ctrl_gridmap_;     
        realvec grid_pos_;
  mrs_natural grid_width_;
  mrs_natural grid_height_;
  realvec adjustments_;
  mrs_real alpha_;
  mrs_real neigh_std_;
 
public:
  SOM(std::string name);
  SOM(const SOM& a);
        
  ~SOM();
  MarSystem* clone() const;  
  

  void myProcess(realvec& in, realvec& out);

private: 
  double randD(double max);
  double gaussian(double x, double mean, double std, bool scale);
  
  void init_grid_map();
  void find_grid_location(realvec& in, int t);

};

}//namespace Marsyas

#endif
    
    

    

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