gear::VXDParameters Class Reference

Geometry properties of a vertex detector needed for reconstruction code. More...

#include <VXDParameters.h>

Inheritance diagram for gear::VXDParameters:

List of all members.

Public Member Functions
virtual	~VXDParameters ()
	Destructor.
virtual const VXDLayerLayout &	getVXDLayerLayout () const=0
	The layer layout in the Vertex.
virtual int	getVXDType () const=0
	The type of Vertex detector: VXDParameters.CCD, VXDParameters.CMOS or VXDParameters.HYBRID.
virtual double	getShellHalfLength () const=0
	The half length (z) of the support shell in mm (w/o gap).
virtual double	getShellGap () const=0
	The length of the gap in mm (gap position at z=0).
virtual double	getShellInnerRadius () const=0
	The inner radius of the support shell in mm.
virtual double	getShellOuterRadius () const=0
	The outer radius of the support shell in mm.
virtual double	getShellRadLength () const=0
	The radiation length in the support shell.
virtual bool	isPointInLadder (Point3D p) const=0
	returns whether a point is inside a ladder
virtual bool	isPointInSensitive (Point3D p) const=0
	returns wheter a point is inside a sensitive volume
virtual Vector3D	distanceToNearestLadder (Point3D p) const=0
	returns vector from point to nearest ladder
virtual Vector3D	distanceToNearestSensitive (Point3D p) const=0
	returns vector from point to nearest sensitive volume
virtual Vector3D	intersectionLadder (Point3D p, Vector3D v) const=0
	returns the first point where a given strainght line (parameters point p and direction v) crosses a ladder (0,0,0) is returned if no intersection can be found.
virtual Vector3D	intersectionSensitive (Point3D p, Vector3D v) const=0
	returns the first point where a given strainght line (parameters point p and direction v) crosses a sensitive volume (0,0,0) is returned if no intersection can be found.
Static Public Attributes
const int	CCD = 1
const int	CMOS = 2
const int	HYBRID = 3

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Detailed Description

Geometry properties of a vertex detector needed for reconstruction code.

The vertex is assumed to consist of a number of layers. Each layer consists of a number of rectangular ladders that are uniformly distributed in a circle around the IP.
The sensitive volumes can be placed relative to the (insensitive) ladders.

See also:

addLayer .

The shell is described by outer and inner radius and it's half length in z.

The gap is assumed to be symetrical around z==0 and goes through all layers and ladders.

Author:

R. Lippe, DESY

Version:

$Id:

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Member Function Documentation

virtual Vector3D gear::VXDParameters::intersectionLadder (  Point3D  p, Vector3D  v )  const [pure virtual]

returns the first point where a given strainght line (parameters point p and direction v) crosses a ladder (0,0,0) is returned if no intersection can be found. Parameters: p  a point on the line. This will be the starting point. v  a vector along the line Implemented in gear::VXDParametersImpl.

virtual Vector3D gear::VXDParameters::intersectionSensitive (  Point3D  p, Vector3D  v )  const [pure virtual]

returns the first point where a given strainght line (parameters point p and direction v) crosses a sensitive volume (0,0,0) is returned if no intersection can be found. Parameters: p  a point on the line. This will be the starting point. v  a vector along the line Implemented in gear::VXDParametersImpl.

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

• VXDParameters.h

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