ParabolicParametrizedMagneticField.h

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#ifndef ParametrizedEngine_ParabolicParametrizedMagneticField_h
#define ParametrizedEngine_ParabolicParametrizedMagneticField_h

#include "MagneticField/Engine/interface/MagneticField.h"
#include <vector>

namespace edm { class ParameterSet; }

class ParabolicParametrizedMagneticField : public MagneticField {
 public:
  explicit ParabolicParametrizedMagneticField();

  explicit ParabolicParametrizedMagneticField(const std::vector<double>& parameters);

  virtual ~ParabolicParametrizedMagneticField();
  
  GlobalVector inTesla (const GlobalPoint& gp) const;

  GlobalVector inTeslaUnchecked (const GlobalPoint& gp) const;

  inline float B0Z(const float a) const;

  inline float Kr(const float R2) const;

  inline bool isDefined(const GlobalPoint& gp) const;

 private:
  float c1;
  float b0;
  float b1;
  float a;
};
#endif