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ZdcGeometry Class Reference

#include <Geometry/ForwardGeometry/interface/ZdcGeometry.h>

Inheritance diagram for ZdcGeometry:

List of all members.

Public Member Functions
virtual DetId	getClosestCell (const GlobalPoint &r) const
virtual std::vector< DetId > const &	getValidDetIds (DetId::Detector det, int subdet) const
	Get a list of valid detector ids (for the given subdetector).
	ZdcGeometry (const ZdcTopology *topology)
virtual	~ZdcGeometry ()
Private Attributes
DetId::Detector	lastReqDet_
int	lastReqSubdet_
const ZdcTopology *	theTopology

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Detailed Description

Definition at line 8 of file ZdcGeometry.h.

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Constructor & Destructor Documentation

ZdcGeometry::ZdcGeometry

(

const ZdcTopology *

topology

)

[explicit]

Definition at line 5 of file ZdcGeometry.cc.

: theTopology(topology),
  lastReqDet_(DetId::Detector(0)), 
  lastReqSubdet_(0) 
{
}

ZdcGeometry::~ZdcGeometry

(

)

[virtual]

Definition at line 12 of file ZdcGeometry.cc.

                          {
}

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Member Function Documentation

DetId ZdcGeometry::getClosestCell

(

const GlobalPoint &

r

)

const [virtual]

Reimplemented from CaloSubdetectorGeometry.

Definition at line 36 of file ZdcGeometry.cc.

References funct::cos(), dYPlate, HcalZDCDetId::EM, HcalZDCDetId::HAD, HcalZDCDetId::LUM, funct::sin(), funct::tan(), theXChannelBoundaries, theZHadChannelBoundaries, theZLUMChannelBoundaries, theZSectionBoundaries, tiltangle, HcalZDCDetId::Unknown, PV3DBase< T, PVType, FrameType >::x(), x, PV3DBase< T, PVType, FrameType >::y(), y, PV3DBase< T, PVType, FrameType >::z(), and z.

{
  // first find the side
  double z = r.z();
  double x = r.x();
  double y = r.y();
  double dz = 0.;
  double zt = 0.;

  int zside = 0;
  if(z >= 0)
    zside = 1;
  else
    zside =-1;

  bool isPositive = false;
  if(z>0)isPositive = true;
  z = fabs(z);
  
  // figure out if is closer to EM, HAD or LUM section
  HcalZDCDetId::Section section = HcalZDCDetId::Unknown;
  if(z<= theZSectionBoundaries[1])section = HcalZDCDetId::EM;
  if(theZSectionBoundaries[1]<z<= theZSectionBoundaries[2])section = HcalZDCDetId::LUM;
  if(z>theZSectionBoundaries[2])section = HcalZDCDetId::HAD;

  // figure out channel
  int channel = -1;
  if(section ==HcalZDCDetId::EM){
    if(x < theXChannelBoundaries[1]) channel = 1;
    if(theXChannelBoundaries[1]<= x <theXChannelBoundaries[2])channel = 2;
    if(theXChannelBoundaries[2]<= x <theXChannelBoundaries[3])channel = 3;
    if(theXChannelBoundaries[3]<= x <theXChannelBoundaries[4])channel = 4;
    if(x > theXChannelBoundaries[4])channel = 5;
  }
  
  if(section == HcalZDCDetId::LUM){
    if(z <= theZLUMChannelBoundaries[1])channel = 1;
    if(z > theZLUMChannelBoundaries[1])channel = 2;
  } 
  if(section == HcalZDCDetId::HAD){
    if(fabs(y) > dYPlate*sin(tiltangle))
      dz = (y > 0.) ?  dYPlate*cos(tiltangle) : -  dYPlate*sin(tiltangle);
    else
      dz = (y > 0.) ?  y/tan(tiltangle) : -y/tan(tiltangle); 
    zt = z - dz;
    if(zt< theZHadChannelBoundaries[1]) channel = 1;
    if(theZHadChannelBoundaries[1]<=  zt <theZHadChannelBoundaries[2])channel = 2;
    if(theZHadChannelBoundaries[2]<=  zt <theZHadChannelBoundaries[3])channel = 3;
    if(zt > theZHadChannelBoundaries[4])channel = 4;
  }
  
  HcalZDCDetId bestId  = HcalZDCDetId(section,isPositive,channel);
  return bestId;
}

std::vector< DetId > const & ZdcGeometry::getValidDetIds	(	DetId::Detector	det,
		int	subdet
	)			const [virtual]

Get a list of valid detector ids (for the given subdetector).

Note:

The implementation in this class is relevant for SubdetectorGeometries which handle only a single subdetector at a time. It does not look at the det and subdet arguments.

Reimplemented from CaloSubdetectorGeometry.

Definition at line 15 of file ZdcGeometry.cc.

References begin, CaloSubdetectorGeometry::cellGeometries(), i, id, lastReqDet_, lastReqSubdet_, CaloSubdetectorGeometry::m_validIds, size, and python::multivaluedict::sort().

                                                                                        {
  if (lastReqDet_!=det || lastReqSubdet_!=subdet) {
    lastReqDet_=det;
    lastReqSubdet_=subdet;
    m_validIds.clear();
  }
  if (m_validIds.empty()) {
    m_validIds.reserve(cellGeometries().size());
    CaloSubdetectorGeometry::CellCont::const_iterator i;
    for (i=cellGeometries().begin(); i!=cellGeometries().end(); i++) {
      DetId id(i->first);
      if (id.det()==det && id.subdetId()==subdet) 
        m_validIds.push_back(id);
    }
      std::sort(m_validIds.begin(),m_validIds.end());
  }

  return m_validIds;
}

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Member Data Documentation

DetId::Detector ZdcGeometry::lastReqDet_ [mutable, private]

Definition at line 19 of file ZdcGeometry.h.

Referenced by getValidDetIds().

int ZdcGeometry::lastReqSubdet_ [mutable, private]

Definition at line 20 of file ZdcGeometry.h.

Referenced by getValidDetIds().

const ZdcTopology* ZdcGeometry::theTopology [private]

Definition at line 18 of file ZdcGeometry.h.

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

• Geometry/ForwardGeometry/interface/ZdcGeometry.h
• Geometry/ForwardGeometry/src/ZdcGeometry.cc

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