ViewCreatorJetSuperROITool Class Reference

#include <ViewCreatorJetSuperROITool.h>

Inheritance diagram for ViewCreatorJetSuperROITool:

Collaboration diagram for ViewCreatorJetSuperROITool:

Public Member Functions
	ViewCreatorJetSuperROITool (const std::string &type, const std::string &name, const IInterface *parent)
virtual	~ViewCreatorJetSuperROITool ()=default
virtual StatusCode	initialize () override
virtual StatusCode	attachROILinks (TrigCompositeUtils::DecisionContainer &decisions, const EventContext &ctx) const override
	Tool interface method. More...

Public Attributes
SG::WriteHandleKey< TrigRoiDescriptorCollection >	m_roisWriteHandleKey
Gaudi::Property< std::string >	m_featureLinkName
Gaudi::Property< double >	m_jetMinPt
Gaudi::Property< double >	m_jetMaxAbsEta
Gaudi::Property< double >	m_roiEtaWidth
Gaudi::Property< double >	m_roiPhiWidth
Gaudi::Property< double >	m_roiZWidth

Detailed Description

Creates a new (super)-ROI combining windows centred on jets passing eta/pt selection criteria, extracted from a single decision object (which would normally link the FSRoI).

Stores this new ROI in the output container, and links it to the Decision Object

The new EventView spawned by the parent EventViewCreatorAlgorithm of this tool will process in this new ROI.

This tool is mainly intended to create a view for fast tracking preselection operations, beginning from the jets used for pure calorimeter-based preselection.

Definition at line 26 of file ViewCreatorJetSuperROITool.h.

Constructor & Destructor Documentation

ViewCreatorJetSuperROITool()

ViewCreatorJetSuperROITool::ViewCreatorJetSuperROITool	(	const std::string &	type,
		const std::string &	name,
		const IInterface *	parent
	)

Definition at line 13 of file ViewCreatorJetSuperROITool.cxx.

  : base_class(type, name, parent)
{}

~ViewCreatorJetSuperROITool()

virtual ViewCreatorJetSuperROITool::~ViewCreatorJetSuperROITool ( )

virtualdefault

Member Function Documentation

attachROILinks()

StatusCode ViewCreatorJetSuperROITool::attachROILinks ( TrigCompositeUtils::DecisionContainer &  decisions, const EventContext &  ctx  ) const

overridevirtual

Tool interface method.

not really composite until a constituent has been added so whether setting here or only when adding a constituent, depends on how it should be used in the future - if we want it to be treated as empty with no constituents, then setComposite should be true even with no constituents, otherwise, with no constituantes it will be treated as a normal fullscan Roi which may not be what is intended

don't mess about with unique_ptr here as the pointer management is done by the Roi itself

only set this to true here, just in case. It will still be false, if there are no constituents, but it doesn;t really matter one way or another in that case

why is the superRoi a unique pointer if it is just going to be released ?

Definition at line 27 of file ViewCreatorJetSuperROITool.cxx.

                                                                         {
 
  // ===================================================================================== //                                                                                                                                       
  // ===================================================================================== // 
  // Create output RoI collection
 
  SG::WriteHandle<TrigRoiDescriptorCollection> roisWriteHandle =  TrigCompositeUtils::createAndStoreNoAux(m_roisWriteHandleKey, ctx);
  // ===================================================================================== // 
 
  // Only expect one object in container
  if(decisions.size()!=1) { 
    ATH_MSG_ERROR("Did not find exactly one decision object in decision container containing " << decisions.size() << " decisions");
    return StatusCode::FAILURE;
  }
  TrigCompositeUtils::Decision* outputDecision = decisions[0];
 
  // Link name should probably be configurable
  const TrigCompositeUtils::LinkInfo< xAOD::JetContainer> leadingjetlink = TrigCompositeUtils::findLink< xAOD::JetContainer >(outputDecision, "LeadingPreselJet", TrigDefs::lastFeatureOfType);
  if(!leadingjetlink.link.isValid()) {
    ATH_MSG_ERROR("Received invalid jet link from decision object! " << leadingjetlink.link);
    return StatusCode::FAILURE;
  }
 
  const xAOD::JetContainer* jetCont = static_cast<const xAOD::JetContainer*>((*leadingjetlink.link)->container());  
  ATH_MSG_DEBUG("Found " << jetCont->size() << " presel jets linked from decision object.");
  
  // This is needed to merge the RoIs from each jet
  std::unique_ptr<TrigRoiDescriptor> superRoI = std::make_unique<TrigRoiDescriptor>();
 
  superRoI->setComposite(true);
  superRoI->manageConstituents(false);
 
  for(const xAOD::Jet* jet : *jetCont) {
    if(jet->pt()>m_jetMinPt && std::abs(jet->eta())<m_jetMaxAbsEta) {
      double jetEta{jet->eta()}, jetPhi{jet->phi()};
 
      ATH_MSG_DEBUG("JET  -- pt=" << jet->pt() <<
                  " eta=" << jet->eta() <<
                  " phi=" << jet->phi() );
 
      // create ROIs
      ATH_MSG_DEBUG("Adding RoI to RoI container");
      ATH_MSG_DEBUG( "  ** Imposing Z constraint while building RoI" );
      double etaMinus = jetEta - m_roiEtaWidth;
      double etaPlus  = jetEta + m_roiEtaWidth;
      
      double phiMinus = CxxUtils::wrapToPi( jetPhi - m_roiPhiWidth );
      double phiPlus  = CxxUtils::wrapToPi( jetPhi + m_roiPhiWidth );
 
 
      if ( m_roiZWidth > 0 ) { 
    // Should retrieve beamspot offset from somewhere
    double zMinus = -1. * m_roiZWidth;
    double zPlus  = m_roiZWidth;
    
    superRoI->push_back( new TrigRoiDescriptor( jetEta, etaMinus, etaPlus,
                            jetPhi, phiMinus, phiPlus,
                            0.,zMinus,zPlus ) );
      }
      else {
    superRoI->push_back( new TrigRoiDescriptor( jetEta, etaMinus, etaPlus,
                            jetPhi, phiMinus, phiPlus ) );
      }
 
    
      superRoI->manageConstituents(true);
    }
  }
 
  roisWriteHandle->push_back(superRoI.release()); 
  const ElementLink< TrigRoiDescriptorCollection > roiEL = ElementLink< TrigRoiDescriptorCollection >( *roisWriteHandle, 0, ctx );
  outputDecision->setObjectLink( TrigCompositeUtils::roiString(), roiEL );
 
  ATH_MSG_DEBUG("PRINTING DECISION");
  ATH_MSG_DEBUG( *outputDecision );
 
  return StatusCode::SUCCESS;
}

initialize()

StatusCode ViewCreatorJetSuperROITool::initialize ( )

overridevirtual

Definition at line 20 of file ViewCreatorJetSuperROITool.cxx.

                                                   {
  ATH_CHECK( m_roisWriteHandleKey.initialize() );
  
  return StatusCode::SUCCESS;
}

Member Data Documentation

m_featureLinkName

Gaudi::Property< std::string > ViewCreatorJetSuperROITool::m_featureLinkName

Initial value:

{this,"FeatureLinkName","PreselJets",
    "The name of the decoration holding the list of jets used for preselection"}

Definition at line 47 of file ViewCreatorJetSuperROITool.h.

m_jetMaxAbsEta

Gaudi::Property< double > ViewCreatorJetSuperROITool::m_jetMaxAbsEta

Initial value:

{this,"JetMaxAbsEta",2.5,
    "Maximum absolute jet pseudorapidity used for RoI creation"}

Definition at line 54 of file ViewCreatorJetSuperROITool.h.

m_jetMinPt

Gaudi::Property< double > ViewCreatorJetSuperROITool::m_jetMinPt

Initial value:

{this,"JetMinPt",20*Gaudi::Units::GeV,
    "Minimum jet pT used for RoI creation"}

Definition at line 50 of file ViewCreatorJetSuperROITool.h.

m_roiEtaWidth

Gaudi::Property< double > ViewCreatorJetSuperROITool::m_roiEtaWidth

Initial value:

{this,"RoIEtaWidth",0.4,
    "Extent of the ROI in eta from its centre"}

Definition at line 57 of file ViewCreatorJetSuperROITool.h.

m_roiPhiWidth

Gaudi::Property< double > ViewCreatorJetSuperROITool::m_roiPhiWidth

Initial value:

{this,"RoIPhiWidth",0.4,
    "Extent of the ROI in phi from its centre"}

Definition at line 60 of file ViewCreatorJetSuperROITool.h.

m_roisWriteHandleKey

SG::WriteHandleKey< TrigRoiDescriptorCollection > ViewCreatorJetSuperROITool::m_roisWriteHandleKey

Initial value:

{this,"RoisWriteHandleKey","",
    "Name of the ROI collection produced by this tool."}

Definition at line 44 of file ViewCreatorJetSuperROITool.h.

m_roiZWidth

Gaudi::Property< double > ViewCreatorJetSuperROITool::m_roiZWidth

Initial value:

{this,"RoIZWidth",-999,
      "Z Half Width in mm"}

Definition at line 64 of file ViewCreatorJetSuperROITool.h.

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

• ViewCreatorJetSuperROITool.h
• ViewCreatorJetSuperROITool.cxx