VXDGeometry Class Reference

======= VXDGeometry ==========
Helper class for VXD geomtry transformations: from lab frame to ladder frame coordinates and inverse. More...

#include <VXDGeometry.h>

Public Member Functions
	VXDGeometry (gear::GearMgr *gearMgr)
std::pair< int, int >	getLadderID (gear::Vector3D labPos, int layerID=-1)
	Return the pair (layerID, ladderID) for the given position, (-1,-1) if not in sensitive volume (in the given layer).
gear::Vector3D	lab2LadderPos (gear::Vector3D labPos, int layerID, int ladderID)
	Convert a position in the lab frame to local ladder coordinates (x_ladder==0 is the middle of the sensitive).
gear::Vector3D	ladder2LabPos (gear::Vector3D ladderPos, int layerID, int ladderID)
	Convert a position in local ladder coordinates (x_ladder==0 is the middle of the sensitive) to the lab frame.
gear::Vector3D	lab2LadderDir (gear::Vector3D labPos, int layerID, int ladderID)
	Convert a direction in the lab frame to local ladder coordinates (x_ladder==0 is the middle of the sensitive).
gear::Vector3D	ladder2LabDir (gear::Vector3D ladderPos, int layerID, int ladderID)
	Convert a direction in local ladder coordinates (x_ladder==0 is the middle of the sensitive) to the lab frame.
void	test ()

Protected Member Functions
void	init ()

Protected Attributes
gear::GearMgr *	_gearMgr
VXDLadders	_vxdLadders
VXDLayers	_vxdLayers

Detailed Description

======= VXDGeometry ==========
Helper class for VXD geomtry transformations: from lab frame to ladder frame coordinates and inverse.

The ladder reference system has its origin at the middle of the sensitive box in x and y, where the x-coordinate runs along the thickness of the ladder and t he y coordinate runs along its width. The z coordinate is the same as in the lab frame.

Version

Id:

VXDGeometry.h 2553 2011-09-20 14:50:20Z gaede

Author

F.Gaede, DESY

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

• VXDGeometry.h