// XEmacs -*-C++-*- // @(#) $Id$ #ifndef ALIHLTTPCSLICETRACKERCOMPONENT_H #define ALIHLTTPCSLICETRACKERCOMPONENT_H //* This file is property of and copyright by the ALICE HLT Project * //* ALICE Experiment at CERN, All rights reserved. * //* See cxx source for full Copyright notice * /** @file AliHLTTPCSliceTrackerComponent.h @author Timm Steinbeck, Matthias Richter @date @brief The TPC conformal mapping tracker component. */ #include "AliHLTProcessor.h" class AliHLTTPCConfMapper; class AliHLTTPCVertex; class AliHLTTPCInterMerger; /** * @class AliHLTTPCSliceTrackerComponent * The TPC conformal mapping tracker component. * * Component ID: \b TPCSliceTracker
* Library: \b libAliHLTTPC. * * Mandatory arguments:
* \li -bfield magnetic field
* should allways be used. If there is no magnetic field, use 0.00001 * * Optional arguments:
* \li -pp-run
* will give fixed trackparameters for p-p runs. * \li -Pb-Pb-run
* will give fixed trackparameters for Pb-Pb runs. * \li -multiplicity multiplicity
* set the multiplicity of your collitions. Used for Pb-Pb events. * \li -disable-merger
* turns off the intermerging on sectorlevel. Only use in spacial cases. * \li -nonvertextracking
* the tracking will do a reconstruction of clusters without vertex constraint. * \li -mainvertextrackingoff
* will turn off the tracking with vertex constraint. Use together with -nonvertextracking. * \li -etarange eta range
* sets the eta range for the tracking. * \li -etasegment eta segments
* let you set the number of eta segments in the trscker. * \li -chi2cut chi²
* set the chi² for the tracker. * \li -rowscopetracklet number of padrows
* tells the tracker how many padrows down it should look for the next cluster when making tracklets. * \li -rowscopetrack number of padrows
* tells the tracker how many padrows down it should look for the next cluster when making track. * \li -trackletlength number of clusters
* the minimum number of clusters to be on a tracklet. * \li -tracklength number of clusters
* the minimum number of clusters to be on a track. * \li -clusterZ cutoff in z-direction (cm)
* makes the tracker to not read in Clusters with a higher value then the * one given in both directions * * @ingroup alihlt_tpc_components */ class AliHLTTPCSliceTrackerComponent : public AliHLTProcessor { public: /** default constructor */ AliHLTTPCSliceTrackerComponent(); /** destructor */ virtual ~AliHLTTPCSliceTrackerComponent(); // Public functions to implement AliHLTComponent's interface. // These functions are required for the registration process /** interface function, see AliHLTComponent for description */ const char* GetComponentID(); /** interface function, see AliHLTComponent for description */ void GetInputDataTypes(AliHLTComponentDataTypeList& list); /** interface function, see AliHLTComponent for description */ AliHLTComponentDataType GetOutputDataType(); /** interface function, see AliHLTComponent for description */ virtual void GetOutputDataSize( unsigned long& constBase, double& inputMultiplier ); /** interface function, see AliHLTComponent for description */ AliHLTComponent* Spawn(); protected: /** * Set Tracker parameters * Knowledge on that has been lost, so somebody has to insert more * documentation. */ void SetTrackerParam(Int_t phiSegments=50,Int_t etaSegments=100, Int_t trackletlength=3,Int_t tracklength=5, Int_t rowscopetracklet=2,Int_t rowscopetrack=3, Double_t minPtFit=0,Double_t maxangle=1.31, Double_t goodDist=5,Double_t hitChi2Cut=10, Double_t goodHitChi2=20,Double_t trackChi2Cut=50, Int_t maxdist=50,Double_t maxphi=0.1,Double_t maxeta=0.1); /** * Set Tracker parameters * Knowledge on that has been lost, so somebody has to insert more * documentation. */ void SetTrackerParam( Bool_t doPP, Bool_t doPbPb, Int_t multiplicity, Double_t bField, Int_t etasegment, Double_t hitchi2cut, Int_t rowscopetracklet, Int_t rowscopetrack, Int_t trackletlength, Int_t tracklength ); /** * Set default tracker parameters * Knowledge on that has been lost, so somebody has to insert more * documentation. */ void SetTrackerParam1(); // Protected functions to implement AliHLTComponent's interface. // These functions provide initialization as well as the actual processing // capabilities of the component. /** interface function, see AliHLTComponent for description */ int DoInit( int argc, const char** argv ); /** interface function, see AliHLTComponent for description */ int DoDeinit(); /** interface function, see AliHLTComponent for description */ int DoEvent( const AliHLTComponentEventData& evtData, const AliHLTComponentBlockData* blocks, AliHLTComponentTriggerData& trigData, AliHLTUInt8_t* outputPtr, AliHLTUInt32_t& size, AliHLTComponentBlockDataList& outputBlocks ); int Reconfigure(const char* cdbEntry, const char* chainId); int ReadPreprocessorValues(const char* modules); using AliHLTProcessor::DoEvent; private: /** copy constructor prohibited */ AliHLTTPCSliceTrackerComponent(const AliHLTTPCSliceTrackerComponent&); /** assignment operator prohibited */ AliHLTTPCSliceTrackerComponent& operator=(const AliHLTTPCSliceTrackerComponent&); /** * Configure the component. * Parse a string for the configuration arguments and set the component * properties. */ int Configure(const char* arguments); /** instance of the tracker */ AliHLTTPCConfMapper* fTracker; //! transient /** vertex object */ AliHLTTPCVertex* fVertex; //! transient /** eta range */ Float_t fEta[2]; // see above /** switch for subsequent non-vertex tracking */ Bool_t fDoNonVertex; // see above /** */ Bool_t fDoPP; // see above /** */ Bool_t fDoPbPb; // see above /** multiplicity estimate */ Int_t fMultiplicity; // see above /** magnetic field */ Double_t fBField; // see above Bool_t fnonvertextracking; // enable NONVERTEX Tracking Bool_t fmainvertextracking; // enable MAINVERTEX Tracking /** ParameterVariables for the trackeparameters */ /** phi_segments: Devide the space into phi_segments */ Int_t fPhisegment; //! transient /** ets_segments: Devide the space into eta_segments */ Int_t fEtasegment; //! transient /** trackletlength: Number of hits a tracklet has to have */ Int_t fTrackletlength; //! transient /** tracklength: Number of hits a track has to have */ Int_t fTracklength; //! transient /** rowscopetracklet: Search range of rows for a tracklet */ Int_t fRowscopetracklet; //! transient /** rowscopetrack: Search range of rows for a track */ Int_t fRowscopetrack; //! transient /** min_pt_fit: Cut for moment fit, use:SetMaxDca(min_pt_fit) */ Double_t fMinPtFit; //! transient /** maxangle: AliHLTTPCTransform::Deg2Rad(10), max angle for the three point look aheand */ Double_t fMaxangle; //! transient /** goodDist: Threshold distancs between two hits when building tracklets */ Double_t fGoodDist; //! transient /** hitChi2Cut: Max chi2 of added hit to track */ Double_t fHitChi2Cut; //! transient /** goodHitChi2: Stop looking for next hit to add if chi2 is less then goodHitChi2 */ Double_t fGoodHitChi2; //! transient /** trackChi2Cut: Max chi2 for track after final fit */ Double_t fTrackChi2Cut; //! transient /** maxdist: Maximum distance between two clusters when forming segments */ Int_t fMaxdist; //! transient /** maxphi: Max phi difference for neighboring hits */ Double_t fMaxphi; //! transient /** maxeta: Max eta difference for neighboring hits */ Double_t fMaxeta; //! transient /** merger object */ AliHLTTPCInterMerger *fpInterMerger; //! transient ClassDef(AliHLTTPCSliceTrackerComponent, 0); }; #endif