ISF::GenParticlePositionFilter Class Reference

#include <GenParticlePositionFilter.h>

Inheritance diagram for ISF::GenParticlePositionFilter:

Collaboration diagram for ISF::GenParticlePositionFilter:

Public Member Functions
	GenParticlePositionFilter (const std::string &t, const std::string &n, const IInterface *p)
	Constructor. More...
	~GenParticlePositionFilter ()
	Destructor. More...
StatusCode	initialize ()
	Athena algtool's Hooks. More...
StatusCode	finalize ()
bool	pass (const HepMC::GenParticle &particle) const
	does the given particle pass the filter? More...

Private Attributes
ServiceHandle< IGeoIDSvc >	m_geoIDSvc
std::vector< int >	m_checkRegion

Detailed Description

Particle filter by position, to be used for initial GenEvent read-in.

Author

Andreas.Salzburger -at- cern.ch

Definition at line 34 of file GenParticlePositionFilter.h.

Constructor & Destructor Documentation

GenParticlePositionFilter()

ISF::GenParticlePositionFilter::GenParticlePositionFilter	(	const std::string &	t,
		const std::string &	n,
		const IInterface *	p
	)

Constructor.

Definition at line 18 of file GenParticlePositionFilter.cxx.

  : base_class(t,n,p),
    m_geoIDSvc("ISF_GeoIDSvc", n),
    m_checkRegion()
{
    // the GeoID indentification service
    declareProperty("GeoIDService",
        m_geoIDSvc,
        "The GeoID Service");
    declareProperty("CheckRegion",
        m_checkRegion,
        "Check if the given particles are within the specified regions");
}

~GenParticlePositionFilter()

ISF::GenParticlePositionFilter::~GenParticlePositionFilter ( )

inline

Destructor.

Definition at line 41 of file GenParticlePositionFilter.h.

{}

Member Function Documentation

finalize()

StatusCode ISF::GenParticlePositionFilter::finalize

(

)

Definition at line 98 of file GenParticlePositionFilter.cxx.

{
  ATH_MSG_VERBOSE("Finalizing ...");
  return StatusCode::SUCCESS;
}

initialize()

StatusCode ISF::GenParticlePositionFilter::initialize

(

)

Athena algtool's Hooks.

Definition at line 36 of file GenParticlePositionFilter.cxx.

{
    ATH_MSG_VERBOSE("initialize()");
 
    // retrieve the GeoIDService
    if ( m_geoIDSvc.retrieve().isFailure()){
        ATH_MSG_ERROR( "Could not retrieve " << m_geoIDSvc << ". Abort.");
        return StatusCode::FAILURE;
    }
 
    ATH_MSG_VERBOSE("initialize() successful");
    return StatusCode::SUCCESS;
}

pass()

bool ISF::GenParticlePositionFilter::pass

(

const HepMC::GenParticle &

particle

)

const

does the given particle pass the filter?

Definition at line 58 of file GenParticlePositionFilter.cxx.

{
  // the GenParticle production vertex
  HepMC::GenVertexPtr vtx = particle.production_vertex();
#endif
 
  // no production vertex?
  if (!vtx) {
    ATH_MSG_DEBUG("GenParticle does not have a production vertex, filtering it out");
    return false;
  }
 
  // (x,y,z,t) position
  HepMC::FourVector pos = vtx->position();
 
  bool inside = false;
  // check if the particle position is inside (or on surface)
  // of any of the given ISF Simulation GeoIDs
  std::vector<int>::const_iterator checkRegionIt    = m_checkRegion.begin();
  std::vector<int>::const_iterator checkRegionItEnd = m_checkRegion.end();
  for ( ; (checkRegionIt!=checkRegionItEnd) && (!inside); ++checkRegionIt) {
    // consult the GeoID identification service
    ISF::InsideType insideCheck = m_geoIDSvc->inside( pos.x(),
                                                      pos.y(),
                                                      pos.z(),
                                                      AtlasDetDescr::AtlasRegion(*checkRegionIt) );
    // is inside only if ==fInside or ==fSurface
    inside |= (insideCheck==ISF::fInside) || (insideCheck==ISF::fSurface);
  }
 
 
  // return whether pos was inside any of the simulation geometries
  if (inside)
    ATH_MSG_VERBOSE("GenParticle is inside AtlasVolume and passed the filter");
  else
    ATH_MSG_VERBOSE("GenParticle is outside AtlasVolume and got fitered out");
  return inside;
}

Member Data Documentation

m_checkRegion

std::vector<int> ISF::GenParticlePositionFilter::m_checkRegion

private

Definition at line 56 of file GenParticlePositionFilter.h.

m_geoIDSvc

ServiceHandle<IGeoIDSvc> ISF::GenParticlePositionFilter::m_geoIDSvc

private

Definition at line 55 of file GenParticlePositionFilter.h.

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

• GenParticlePositionFilter.h
• GenParticlePositionFilter.cxx