OptimizePick.h

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// $Maintainer: Timo Sachsenberg $
// $Authors: Eva Lange $
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#ifndef OPENMS_TRANSFORMATIONS_RAW2PEAK_OPTIMIZEPICK_H
#define OPENMS_TRANSFORMATIONS_RAW2PEAK_OPTIMIZEPICK_H

#include <OpenMS/TRANSFORMATIONS/RAW2PEAK/PeakShape.h>
#include <OpenMS/KERNEL/Peak1D.h>

#include <Eigen/Core>
#include <unsupported/Eigen/NonLinearOptimization>

#include <vector>

namespace OpenMS
{
  namespace OptimizationFunctions
  {
    typedef std::vector<Peak1D> RawDataVector;
    typedef RawDataVector::iterator PeakIterator;

    struct OPENMS_DLLAPI PenaltyFactors
    {
      PenaltyFactors() :
        pos(0), lWidth(0), rWidth(0) {}
      PenaltyFactors(const PenaltyFactors & p) :
        pos(p.pos), lWidth(p.lWidth), rWidth(p.rWidth) {}
      inline PenaltyFactors & operator=(const PenaltyFactors & p)
      {
        pos = p.pos;
        lWidth = p.lWidth;
        rWidth = p.rWidth;

        return *this;
      }

      ~PenaltyFactors(){}

      double pos;
      double lWidth;
      double rWidth;
    };
  }


  class OPENMS_DLLAPI OptimizePick
  {
public:

    struct Data
    {
      std::vector<double> positions;
      std::vector<double> signal;
      std::vector<PeakShape> peaks;

      OptimizationFunctions::PenaltyFactors penalties;

    };

    class OptPeakFunctor
    {
    public:
      int inputs() const { return m_inputs; }
      int values() const { return m_values; }

      OptPeakFunctor(unsigned dimensions, unsigned num_data_points, const OptimizePick::Data * data)
      : m_inputs(dimensions), m_values(num_data_points), m_data(data) {}

      int operator()(const Eigen::VectorXd &x, Eigen::VectorXd &fvec);
      // compute Jacobian matrix for the different parameters
      int df(const Eigen::VectorXd &x, Eigen::MatrixXd &J);

    private:
      const int m_inputs, m_values;
      const Data * m_data;
    };

    typedef std::vector<Peak1D> RawDataVector;
    typedef RawDataVector::iterator PeakIterator;


    OptimizePick() :
      max_iteration_(400)
    {}

    OptimizePick(const struct OptimizationFunctions::PenaltyFactors & penalties_,
                 const int max_iteration_);

    ~OptimizePick();

    inline const struct OptimizationFunctions::PenaltyFactors & getPenalties() const { return penalties_; }
    inline struct OptimizationFunctions::PenaltyFactors & getPenalties() { return penalties_; }
    inline void setPenalties(const struct OptimizationFunctions::PenaltyFactors & penalties) { penalties_ = penalties; }

    inline UInt getNumberIterations() const { return max_iteration_; }
    inline unsigned int & getNumberIterations() { return max_iteration_; }
    inline void setNumberIterations(const int max_iteration) { max_iteration_ = max_iteration; }

    void optimize(std::vector<PeakShape> & peaks, Data & data);


protected:
    struct OptimizationFunctions::PenaltyFactors penalties_;

    unsigned int max_iteration_;
  };
}

#endif