GeomDetLess Class Reference

#include <GeomDetLess.h>

List of all members.

Public Member Functions
	GeomDetLess (PropagationDirection dir=alongMomentum)
bool	operator() (const GeomDet *a, const GeomDet *b) const
Private Member Functions
bool	barrelForwardLess (const GeomDet *blb, const GeomDet *fla) const
bool	insideOutLess (const GeomDet *, const GeomDet *) const
Private Attributes
PropagationDirection	theDir

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Detailed Description

Defines order of layers in the Tracker as seen by straight tracks coming from the interaction region.

Definition at line 12 of file GeomDetLess.h.

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Constructor & Destructor Documentation

GeomDetLess::GeomDetLess

(

PropagationDirection

dir = alongMomentum

)

[inline]

Definition at line 15 of file GeomDetLess.h.

                                                         :
    theDir(dir) {}

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Member Function Documentation

bool GeomDetLess::barrelForwardLess	(	const GeomDet *	blb,
		const GeomDet *	fla
	)		const [private]

Definition at line 41 of file GeomDetLess.cc.

References abs, GeomDet::position(), GloballyPositioned< T >::position(), GeomDet::surface(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by insideOutLess().

{
  return std::abs(bla->surface().position().z()) < std::abs( flb->position().z());
}

bool GeomDetLess::insideOutLess	(	const GeomDet *	a,
		const GeomDet *	b
	)		const [private]

Definition at line 8 of file GeomDetLess.cc.

References abs, barrelForwardLess(), GeomDet::geographicalId(), GeomDetEnumerators::PixelBarrel, GeomDetEnumerators::PixelEndcap, GloballyPositioned< T >::position(), GeomDet::surface(), StripSubdetector::TEC, StripSubdetector::TIB, StripSubdetector::TID, and StripSubdetector::TOB.

Referenced by operator()().

{
  if (a == b) return false;

  DetId ida(a->geographicalId());
  DetId idb(b->geographicalId());

  if      ( (ida.subdetId() == StripSubdetector::TIB || ida.subdetId() == StripSubdetector::TOB || ida.subdetId() == PixelSubdetector::PixelBarrel) &&
            (idb.subdetId() == StripSubdetector::TIB || idb.subdetId() == StripSubdetector::TOB || idb.subdetId() == PixelSubdetector::PixelBarrel)) {  // barrel with barrel
    return a->surface().position().perp() < b->surface().position().perp();
  }

  if      ( (ida.subdetId() == StripSubdetector::TEC || ida.subdetId() == StripSubdetector::TID || ida.subdetId() == PixelSubdetector::PixelEndcap) &&
            (idb.subdetId() == StripSubdetector::TEC || idb.subdetId() == StripSubdetector::TID || idb.subdetId() == PixelSubdetector::PixelEndcap)) {  // fwd with fwd
    return std::abs(a->surface().position().z()) < std::abs(b->surface().position().z());
  }
  
  //
  //  here I have 1 barrel against one forward
  //

  if      ( (ida.subdetId() == StripSubdetector::TIB || ida.subdetId() == StripSubdetector::TOB || ida.subdetId() == PixelSubdetector::PixelBarrel) &&
            (idb.subdetId() == StripSubdetector::TEC || idb.subdetId() == StripSubdetector::TID || idb.subdetId() == PixelSubdetector::PixelEndcap)) {  // barrel with barrel
    return barrelForwardLess( a, b);
  }else{
    return !barrelForwardLess( b, a);
  }
  
  //throw DetLogicError("GeomDetLess: arguments are not Barrel or Forward GeomDets");
  throw Genexception("GeomDetLess: arguments are not Ok");
  
}

bool GeomDetLess::operator()	(	const GeomDet *	a,
		const GeomDet *	b
	)		const [inline]

Definition at line 18 of file GeomDetLess.h.

References alongMomentum, insideOutLess(), and theDir.

                                                             {
    if (theDir == alongMomentum) return insideOutLess( a, b);
    else return insideOutLess( b, a);
  }

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Member Data Documentation

PropagationDirection GeomDetLess::theDir [private]

Definition at line 25 of file GeomDetLess.h.

Referenced by operator()().