2d/timestep.hh

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/* -*- mia-c++  -*-
 *
 * This file is part of MIA - a toolbox for medical image analysis 
 * Copyright (c) Leipzig, Madrid 1999-2017 Gert Wollny
 *
 * MIA 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 3 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 MIA; if not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef mia_2d_timestep_hh
#define mia_2d_timestep_hh

#include <mia/core/factory.hh>
#include <mia/core/typedescr.hh>
#include <mia/2d/image.hh>
#include <mia/2d/transform.hh>

NS_MIA_BEGIN

class EXPORT_2D C2DRegTimeStep : public CProductBase {
public:
        typedef C2DImage plugin_data; 
        
        typedef timestep_type plugin_type; 

        C2DRegTimeStep(float min, float max);

        
        virtual ~C2DRegTimeStep();

        float calculate_pertuberation(C2DFVectorfield& io, 
                                      const C2DTransformation& shift) const;

        bool regrid_requested(const C2DTransformation& b, const C2DFVectorfield& v, 
                              float delta) const;

        bool decrease();

        void increase();

        float get_delta(float maxshift) const;

        bool has_regrid () const;

private:
        virtual float do_calculate_pertuberation(C2DFVectorfield& io, 
                                                 const C2DTransformation& shift) const = 0;
        virtual bool do_regrid_requested (const C2DTransformation& b, 
                                          const C2DFVectorfield& v, float delta) const = 0;
        
        virtual bool do_has_regrid () const = 0;
        
        float m_min;
        float m_max;
        float m_current;
};

typedef std::shared_ptr<C2DRegTimeStep > P2DRegTimeStep;

class EXPORT_2D C2DRegTimeStepPlugin : public TFactory<C2DRegTimeStep>
{
public:
        C2DRegTimeStepPlugin(const char *name);
protected:
        float get_min_timestep() const;

        float get_max_timestep() const;
private: 
        float m_min;
        float m_max;
};

typedef THandlerSingleton<TFactoryPluginHandler<C2DRegTimeStepPlugin> > 
         C2DRegTimeStepPluginHandler;

NS_MIA_END

#endif