VariablePsf.h

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/*
 * VariablePsf.h
 *
 *  Created on: Jun 25, 2018
 *      Author: Alejandro Álvarez Ayllón
 */
 
#ifndef _SEIMPLEMENTATION_PSF_VARIABLEPSF_H_
#define _SEIMPLEMENTATION_PSF_VARIABLEPSF_H_
 
#include "SEFramework/Image/VectorImage.h"
#include "SEFramework/Psf/Psf.h"
 
namespace SourceXtractor {

class VariablePsf final : public Psf {
public:
  struct Component {
    std::string name;
    int         group_id;
    double      offset, scale;
  };

  VariablePsf(double pixel_sampling, const std::vector<Component>& components, const std::vector<int>& group_degrees,
              const std::vector<std::shared_ptr<VectorImage<SeFloat>>>& coefficients);

  VariablePsf(double pixel_sampling, const std::shared_ptr<VectorImage<SeFloat>>& constant);

  virtual ~VariablePsf() = default;

  int getWidth() const override;

  int getHeight() const override;

  double getPixelSampling() const override;

  const std::vector<std::string>& getComponents() const override;

  std::shared_ptr<VectorImage<SeFloat>> getPsf(const std::vector<double>& values) const override;
 
private:
  double                                             m_pixel_sampling;
  std::vector<Component>                             m_components;
  std::vector<std::string>                           m_component_names;
  std::vector<int>                                   m_group_degrees;
  std::vector<std::shared_ptr<VectorImage<SeFloat>>> m_coefficients;
  std::vector<std::vector<int>>                      m_exponents;

  void selfTest();

  std::vector<double> scaleProperties(const std::vector<double>& values) const;

  void calculateExponents();
};
 
}  // namespace SourceXtractor
 
#endif  //_SEIMPLEMENTATION_PSF_VARIABLEPSF_H_