Ex02ChamberParameterisation Class Reference

The chamber parameterisation. More...

#include <Ex02ChamberParameterisation.h>

Inheritance diagram for Ex02ChamberParameterisation:

Public Member Functions
	Ex02ChamberParameterisation (Int_t noChambers, Double_t startZ, Double_t spacingZ, Double_t widthChamber, Double_t lengthInitial, Double_t lengthFinal)
virtual	~Ex02ChamberParameterisation ()
void	ComputeTransformation (Int_t copyNo, Double_t *position) const
void	ComputeDimensions (Int_t copyNo, Double_t *dimension) const

Private Attributes
Int_t	fNoChambers
	Number of chambers.
Double_t	fStartZ
	The Z of the center of first chamber.
Double_t	fHalfWidth
	The half-width of each tracker chamber.
Double_t	fSpacing
	The distance between the chambers' centers.
Double_t	fHalfLengthFirst
	The first half-length.
Double_t	fHalfLengthIncr
	The Increment for the half-length.

Detailed Description

The chamber parameterisation.

A parameterisation that describes a series of boxes along Z The boxes have equal width, & their lengths are a linear equation.

Date

21/04/2002

Author

I. Hrivnacova; IPN, Orsay

Definition at line 34 of file Ex02ChamberParameterisation.h.

Constructor & Destructor Documentation

Ex02ChamberParameterisation()

Ex02ChamberParameterisation::Ex02ChamberParameterisation	(	Int_t	noChambers,
		Double_t	startZ,
		Double_t	spacingZ,
		Double_t	widthChamber,
		Double_t	lengthInitial,
		Double_t	lengthFinal )

Standard constructor

Parameters

noChambers	Number of chambers
startZ	The Z of the center of first chamber
spacingZ	The distance between the chambers' centers
widthChamber	The width of each tracker chamber
lengthInitial	The first chamber length
lengthFinal	The last chamber length

Definition at line 29 of file Ex02ChamberParameterisation.cxx.

  : TObject(),
    fNoChambers(noChambers),
    fStartZ(startZ),
    fHalfWidth(widthChamber * 0.5),
    fSpacing(spacingZ),
    fHalfLengthFirst(lengthInitial * 0.5),
    fHalfLengthIncr(0)
{
  /// Standard constructor
  /// \param noChambers    Number of chambers
  /// \param startZ        The Z of the center of first chamber
  /// \param spacingZ      The distance between the chambers' centers
  /// \param widthChamber  The width of each tracker chamber
  /// \param lengthInitial The first chamber length
  /// \param lengthFinal   The last chamber length
 
  if (noChambers > 0) {
    fHalfLengthIncr = 0.5 * (lengthFinal - lengthInitial) / noChambers;
    if (spacingZ < widthChamber) {
      Fatal("Ex02ChamberParameterisation",
        "Ex02ChamberParameterisation construction: Width>Spacing");
    }
  }
}

~Ex02ChamberParameterisation()

Ex02ChamberParameterisation::~Ex02ChamberParameterisation ( )

virtual

Destructor

Definition at line 58 of file Ex02ChamberParameterisation.cxx.

{
  /// Destructor
}

Member Function Documentation

ComputeTransformation()

void Ex02ChamberParameterisation::ComputeTransformation	(	Int_t	copyNo,
		Double_t *	position ) const

Compute the chamber position

Parameters

copyNo	The chamber copy number
position	The computed chamber position

Definition at line 64 of file Ex02ChamberParameterisation.cxx.

{
  /// Compute the chamber position
  /// \param copyNo    The chamber copy number
  /// \param position  The computed chamber position
 
  position[0] = 0.;
  position[1] = 0.;
  position[2] = fStartZ + (copyNo + 1) * fSpacing;
}

ComputeDimensions()

void Ex02ChamberParameterisation::ComputeDimensions	(	Int_t	copyNo,
		Double_t *	dimension ) const

Compute the chamber dimensions

Parameters

copyNo	The chamber copy number
dimension	The computed chamber dimensions

Definition at line 77 of file Ex02ChamberParameterisation.cxx.

{
 
  /// Compute the chamber dimensions
  /// \param copyNo     The chamber copy number
  /// \param dimension  The computed chamber dimensions
 
  Double_t halfLength = fHalfLengthFirst + copyNo * fHalfLengthIncr;
  dimension[0] = halfLength;
  dimension[1] = halfLength;
  dimension[2] = fHalfWidth;
}

Member Data Documentation

fNoChambers

Int_t Ex02ChamberParameterisation::fNoChambers

private

Number of chambers.

Definition at line 48 of file Ex02ChamberParameterisation.h.

fStartZ

Double_t Ex02ChamberParameterisation::fStartZ

private

The Z of the center of first chamber.

Definition at line 49 of file Ex02ChamberParameterisation.h.

fHalfWidth

Double_t Ex02ChamberParameterisation::fHalfWidth

private

The half-width of each tracker chamber.

Definition at line 50 of file Ex02ChamberParameterisation.h.

fSpacing

Double_t Ex02ChamberParameterisation::fSpacing

private

The distance between the chambers' centers.

Definition at line 51 of file Ex02ChamberParameterisation.h.

fHalfLengthFirst

Double_t Ex02ChamberParameterisation::fHalfLengthFirst

private

The first half-length.

Definition at line 52 of file Ex02ChamberParameterisation.h.

fHalfLengthIncr

Double_t Ex02ChamberParameterisation::fHalfLengthIncr

private

The Increment for the half-length.

Definition at line 53 of file Ex02ChamberParameterisation.h.

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

• examples/E02/include/Ex02ChamberParameterisation.h
• examples/E02/src/Ex02ChamberParameterisation.cxx