AFP::Parameterization::Equation Class Reference

Local class for storing parameterization equation. More...

Collaboration diagram for AFP::Parameterization::Equation:

Public Member Functions
	Equation (double energy, std::vector< std::unique_ptr< TF1 > > polynomial)
	Takes nominal energy and vector of polynomials as arguments.
double	evaluate (double x, double y, double z, double sx, double sy, double E) const
	Evaluates value of function with given initial positions, slopes and energy.
const TF1 *	getPolynomial (int iPoly) const
	Returns const raw poiner to polynomial of number iPoly.

Private Attributes
double	m_energy
	Nominal energy of proton.
std::vector< std::unique_ptr< TF1 > >	m_polynomial
	Vector of TF1 polynomials.

Detailed Description

Local class for storing parameterization equation.

Definition at line 26 of file Parameterization.h.

Constructor & Destructor Documentation

Equation()

AFP::Parameterization::Equation::Equation ( double energy, std::vector< std::unique_ptr< TF1 > > polynomial )

inline

Takes nominal energy and vector of polynomials as arguments.

Definition at line 29 of file Parameterization.h.

: m_energy(energy), m_polynomial(std::move(polynomial)) {}

Member Function Documentation

evaluate()

double AFP::Parameterization::Equation::evaluate	(	double	x,
		double	y,
		double	z,
		double	sx,
		double	sy,
		double	E ) const

Evaluates value of function with given initial positions, slopes and energy.

Definition at line 103 of file Parameterization.cxx.

                                                                                                              {
    const double xi = (m_energy - E)/m_energy;
 
    const double v0 = getPolynomial(0)->Eval(xi);
    const double v1 = x * getPolynomial(1)->Eval(xi);
    const double v2 = y * getPolynomial(2)->Eval(xi);
    const double v3 = z * getPolynomial(3)->Eval(xi);
    const double v4 = sx * getPolynomial(4)->Eval(xi);
    const double v5 = sy * getPolynomial(5)->Eval(xi);
    const double v6 = z*sx * getPolynomial(6)->Eval(xi);
    const double v7 = z*sy * getPolynomial(7)->Eval(xi);
 
    return v0 + v1 + v2 + v3 + v4 + v5 + v6 + v7;
  }

getPolynomial()

const TF1 * AFP::Parameterization::Equation::getPolynomial ( int iPoly ) const

inline

Returns const raw poiner to polynomial of number iPoly.

Definition at line 35 of file Parameterization.h.

{ return m_polynomial.at(iPoly).get(); };

Member Data Documentation

m_energy

double AFP::Parameterization::Equation::m_energy

private

Nominal energy of proton.

Definition at line 39 of file Parameterization.h.

m_polynomial

std::vector<std::unique_ptr<TF1> > AFP::Parameterization::Equation::m_polynomial

private

Vector of TF1 polynomials.

Definition at line 42 of file Parameterization.h.

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The documentation for this class was generated from the following files:

• Parameterization.h
• Parameterization.cxx