TrackerBounds Class Reference

#include <TrackerBounds.h>

Static Public Member Functions
static const Cylinder &	barrelBound ()
static float	halfLength ()
static bool	isInside (const GlobalPoint &)
static const Disk &	negativeEndcapDisk ()
static const Disk &	positiveEndcapDisk ()
static float	radius ()

Static Private Member Functions
static void	check ()
static void	initialize ()

Static Private Attributes
static ReferenceCountingPointer < Cylinder >	theCylinder = 0
static bool	theInit = false
static ReferenceCountingPointer< Disk >	theNegativeDisk = 0
static ReferenceCountingPointer< Disk >	thePositiveDisk = 0

Detailed Description

A definition of the envelope that contains the tracker sensitive detectors. The information is not automatically computed from the Tracker geometry, but is hard-coded in this class. However, there is very little freedom to modify the tracker size (ECAL constraint...), so a fast access to this information is very useful. The recommended use is: Inside the TrackerBounds tracker propagators are expected to work accurately. Outside of this volume use some kind of geane.

Ported from ORCA

Date:

2012/12/25 14:24:26

Revision:

1.5

Definition at line 26 of file TrackerBounds.h.

Member Function Documentation

static const Cylinder& TrackerBounds::barrelBound ( )

inlinestatic

Definition at line 29 of file TrackerBounds.h.

References check(), and theCylinder.

Referenced by StateOnTrackerBound::operator()().

{check(); return *theCylinder;}

static void TrackerBounds::check ( void  )

inlinestaticprivate

Definition at line 46 of file TrackerBounds.h.

References initialize(), and theInit.

Referenced by barrelBound(), negativeEndcapDisk(), and positiveEndcapDisk().

{if (!theInit) initialize();}

static float TrackerBounds::halfLength ( )

inlinestatic

Definition at line 36 of file TrackerBounds.h.

Referenced by initialize(), isInside(), and StateOnTrackerBound::operator()().

{return 273.5f;}

void TrackerBounds::initialize ( )

staticprivate

Definition at line 12 of file TrackerBounds.cc.

References epsilon, halfLength(), radius(), makeMuonMisalignmentScenario::rot, theCylinder, theInit, theNegativeDisk, and thePositiveDisk.

Referenced by check().

{
  const float epsilon = 0.001; // should not matter at all

  Surface::RotationType rot; // unit rotation matrix
  auto cb = new SimpleCylinderBounds( radius()-epsilon, 
                      radius()+epsilon, 
                      -halfLength(),  halfLength()
                                     );

 theCylinder = new Cylinder(Cylinder::computeRadius(*cb), Surface::PositionType(0,0,0), rot, cb);


  theNegativeDisk = 
    new Disk( Surface::PositionType( 0, 0, -halfLength()), rot, 
           new SimpleDiskBounds( 0, radius(), -epsilon, epsilon));

  thePositiveDisk = 
    new Disk( Surface::PositionType( 0, 0, halfLength()), rot, 
           new SimpleDiskBounds( 0, radius(), -epsilon, epsilon));


  theInit = true;
}

bool TrackerBounds::isInside ( const GlobalPoint &  point )

static

Definition at line 37 of file TrackerBounds.cc.

References halfLength(), PV3DBase< T, PVType, FrameType >::perp(), radius(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by MuonTrackLoader::buildTrackAtPCA(), MuonSeedTrack::buildTrackAtPCA(), MuonUpdatorAtVertex::propagate(), and MuonUpdatorAtVertex::propagateToNominalLine().

                                                    {
  return (point.perp() <= radius() &&
      fabs(point.z()) <= halfLength());
}

static const Disk& TrackerBounds::negativeEndcapDisk ( )

inlinestatic

Definition at line 30 of file TrackerBounds.h.

References check(), and theNegativeDisk.

Referenced by StateOnTrackerBound::operator()().

{check(); return *theNegativeDisk;}

static const Disk& TrackerBounds::positiveEndcapDisk ( )

inlinestatic

Definition at line 31 of file TrackerBounds.h.

References check(), and thePositiveDisk.

Referenced by StateOnTrackerBound::operator()().

{check(); return *thePositiveDisk;}

static float TrackerBounds::radius ( void  )

inlinestatic

Hard-wired numbers defining the envelope of the sensitive volumes.

Definition at line 35 of file TrackerBounds.h.

Referenced by initialize(), isInside(), and StateOnTrackerBound::operator()().

{return 112.f;}

Member Data Documentation

ReferenceCountingPointer< BoundCylinder > TrackerBounds::theCylinder = 0

staticprivate

Definition at line 41 of file TrackerBounds.h.

Referenced by barrelBound(), and initialize().

bool TrackerBounds::theInit = false

staticprivate

Definition at line 44 of file TrackerBounds.h.

Referenced by check(), and initialize().

ReferenceCountingPointer< BoundDisk > TrackerBounds::theNegativeDisk = 0

staticprivate

Definition at line 42 of file TrackerBounds.h.

Referenced by initialize(), and negativeEndcapDisk().

ReferenceCountingPointer< BoundDisk > TrackerBounds::thePositiveDisk = 0

staticprivate

Definition at line 43 of file TrackerBounds.h.

Referenced by initialize(), and positiveEndcapDisk().