SigmoidConverter.h

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#ifndef SIGMOID_CONVERTER_H_
#define SIGMOID_CONVERTER_H_
 
#include "ElementsKernel/Exception.h"
#include "ModelFitting/Parameters/CoordinateConverter.h"
 
namespace ModelFitting {
 
class SigmoidConverter: public CoordinateConverter {
 
public:
 
  SigmoidConverter(const double min_value, const double max_value) :
      m_min_value(min_value), m_max_value(max_value) {
    if (m_min_value > m_max_value) {
      throw Elements::Exception()
          << "SigmoidConverter: min_value larger than max_value!";
    }
  }
 
  double worldToEngine(const double world_value) const override;
 
  double engineToWorld(const double engine_value) const override;
 
  double getEngineToWorldDerivative(const double value) const override;
 
 
  virtual ~SigmoidConverter();
 
private:
 
  const double m_min_value;
 
  const double m_max_value;
};
 
} // namespace ModelFitting
 
#endif /* SIGMOID_CONVERTER_H_ */