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RZLine Class Reference

#include <RecoPixelVertexing/PixelTrackFitting/src/RZLine.h>

List of all members.

Public Member Functions
float	chi2 (float cotTheta, float intercept) const
void	fit (float &cotTheta, float &intercept, float &covss, float &covii, float &covsi) const
	RZLine (const std::vector< float > &aR, const std::vector< float > &aZ, const std::vector< float > &aErrZ)
	RZLine (const std::vector< GlobalPoint > &points, const std::vector< GlobalError > &errors, const std::vector< bool > isBarrel)
Private Attributes
std::vector< float >	errZ
std::vector< float >	r
std::vector< float >	z

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Detailed Description

Definition at line 8 of file RZLine.h.

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Constructor & Destructor Documentation

RZLine::RZLine	(	const std::vector< GlobalPoint > &	points,
		const std::vector< GlobalError > &	errors,
		const std::vector< bool >	isBarrel
	)

RZLine::RZLine	(	const std::vector< float > &	aR,
		const std::vector< float > &	aZ,
		const std::vector< float > &	aErrZ
	)

Definition at line 7 of file RZLine.cc.

  : r(aR), z(aZ), errZ(aErrZ)
{}

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Member Function Documentation

float RZLine::chi2	(	float	cotTheta,
		float	intercept
	)			const

Definition at line 35 of file RZLine.cc.

References errZ, r, sqr(), and z.

Referenced by PixelFitterByConformalMappingAndLine::run(), TrackFitter::run(), and PixelFitterByHelixProjections::run().

{
  float chi2 = 0.;
  int r_size = r.size();  
  for (int i=0; i< r_size; i++) chi2 += sqr( ((z[i]-intercept) - cotTheta*r[i]) / errZ[i]);
  return chi2;
}

void RZLine::fit	(	float &	cotTheta,
		float &	intercept,
		float &	covss,
		float &	covii,
		float &	covsi
	)			const

Definition at line 29 of file RZLine.cc.

References errZ, r, and z.

Referenced by PixelFitterByConformalMappingAndLine::run(), TrackFitter::run(), and PixelFitterByHelixProjections::run().

{
  LinearFit().fit( r,z, r.size(), errZ, cotTheta, intercept, covss, covii, covsi);
}

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Member Data Documentation

std::vector<float> RZLine::errZ [private]

Definition at line 24 of file RZLine.h.

Referenced by chi2(), and fit().

std::vector<float> RZLine::r [private]

Definition at line 24 of file RZLine.h.

Referenced by chi2(), and fit().

std::vector<float> RZLine::z [private]

Definition at line 24 of file RZLine.h.

Referenced by chi2(), and fit().

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

• RecoPixelVertexing/PixelTrackFitting/src/RZLine.h
• RecoPixelVertexing/PixelTrackFitting/src/RZLine.cc

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