marlintpc::simpleFitXY Class Reference

Simple fit in XY. More...

#include <SimpleHelixTrackModel.h>

Public Member Functions
	simpleFitXY (bool, double, double)
	Constructor for simple fit in XY. More...
void	addPoint (double, double, double)
	Add point. More...
void	addTrack (EVENT::Track const *)
	add a complete Track. More...
int	fit (double &, int &)
	Perform fit. More...
TVectorD	getPar () const
	Get parameters vector. More...
TMatrixDSym	getCov () const
	Get covariance matrix. More...

Detailed Description

Simple fit in XY.

Fit circle (Karimaki) or straight line.

Constructor & Destructor Documentation

marlintpc::simpleFitXY::simpleFitXY	(	bool	flag,
		double	xr,
		double	yr
	)

Constructor for simple fit in XY.

Parameters

[in]	flag	curvature flag (true: circle, false: line)
[in]	xr	X of reference point
[in]	yr	Y of reference point

Member Function Documentation

void marlintpc::simpleFitXY::addPoint	(	double	x,
		double	y,
		double	w
	)

Add point.

Parameters

[in]	x	X of point
[in]	y	Y of point
[in]	w	weight of point

Referenced by addTrack(), and marlintpc::tp_PixelSegment::tp_PixelSegment().

void marlintpc::simpleFitXY::addTrack

(

EVENT::Track const *

seedTrack

)

add a complete Track.

Parameters

[in]

seedTrack

input seed Track

References addPoint().

int marlintpc::simpleFitXY::fit	(	double &	Chi2,
		int &	nPoints
	)

Perform fit.

Parameters

[out]	Chi2	chi2 of fit
[out]	nPoints	number of points

Returns

number of fit parameters (2 or 3)

Referenced by marlintpc::tp_PixelSegment::tp_PixelSegment().

TMatrixDSym marlintpc::simpleFitXY::getCov

(

)

const

Get covariance matrix.

Returns

covariance matrix

Referenced by marlintpc::tp_PixelSegment::tp_PixelSegment().

TVectorD marlintpc::simpleFitXY::getPar

(

)

const

Get parameters vector.

Returns

parameter vector

Referenced by marlintpc::tp_PixelSegment::tp_PixelSegment().

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

• SimpleHelixTrackModel.h
• SimpleHelixTrackModel.cc