/home/mweber/Dokumente/CMS/Alignment/kalmanalignment/trunk/util/Utilities.cc File Reference

#include "Utilities.h"
#include <assert.h>
#include <iostream>
#include <TMath.h>
#include <TFile.h>
#include <TROOT.h>

Functions
void	setXYZ (HepVector &v, double x, double y, double z)
bool	equal (const double val1, const double val2, const double precision)
void	GetSubMatrix (const HepSymMatrix &m, int startRow, int startColumn, int endRow, int endColumn, HepMatrix &sub)
void	GetSubMatrix (const HepMatrix &m, int startRow, int startColumn, int endRow, int endColumn, HepMatrix &sub)
void	SetSubMatrix (HepMatrix &m, int startRow, int startColumn, const HepMatrix &sub)
void	SetSubMatrix (HepSymMatrix &m, int startRow, int startColumn, const HepMatrix &sub)
HepVector	GetSubVector (const HepVector &v, int start, int end)
void	SetSubVector (HepVector &v, int start, const HepVector &sub)
void	CLHEPtoROOT (const HepMatrix &oldM, TMatrixD *newM)
	Convert a CLHEP HepMatrix to ROOT TMatrixD.
void	CLHEPtoROOT (const HepSymMatrix &oldM, TMatrixDSym *newM)
	Convert a CLHEP HepSymMatrix to ROOT TMatrixDSym.
void	CLHEPtoROOT (const HepVector &oldV, TVectorD *newV)
	Convert a CLHEP HepVector to ROOT TVectorD.
TObject *	get_object (const char *objectname, const char *filename)
TTree *	get_tree (const char *treename, const char *filename)
TTree *	init_align_tree (const char *filename)
Variables
int	gLogLevel = 3

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Detailed Description

Contains often used functions for vectors, matrices and other.

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Function Documentation

bool equal	(	const double	val1,
		const double	val2,
		const double	precision
	)

Test if two values are equal within a certain precision.

void GetSubMatrix	(	const HepMatrix &	m,
		int	startRow,
		int	startColumn,
		int	endRow,
		int	endColumn,
		HepMatrix &	sub
	)

Get a submatrix of matrix m. Counting starts at 0, and both start and end rows/columns are included. The matrix sub needs to have the correct size, already.

void GetSubMatrix	(	const HepSymMatrix &	m,
		int	startRow,
		int	startColumn,
		int	endRow,
		int	endColumn,
		HepMatrix &	sub
	)

Get a submatrix of matrix m. Counting starts at 0, and both start and end rows/columns are included. The matrix sub needs to have the correct size, already.

void SetSubMatrix	(	HepSymMatrix &	m,
		int	startRow,
		int	startColumn,
		const HepMatrix &	sub
	)

Set a submatrix of the covariance matrix. Counting starts at 0.

void SetSubMatrix	(	HepMatrix &	m,
		int	startRow,
		int	startColumn,
		const HepMatrix &	sub
	)

Set a submatrix of the covariance matrix. Counting starts at 0.

void setXYZ	(	HepVector &	v,
		double	x,
		double	y,
		double	z
	)

Set X, Y and Z coordinate of a HepVector in one go.