[u/mrichter/AliRoot.git] / HLT / TPCLib / tracking-ca / AliHLTTPCCATrackerComponent.cxx

// @(#) $Id$
/**************************************************************************
 * This file is property of and copyright by the ALICE HLT Project        * 
 * ALICE Experiment at CERN, All rights reserved.                         *
 *                                                                        *
 * Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de>        *
 *                  Ivan Kisel <kisel@kip.uni-heidelberg.de>              *
 *                  for The ALICE HLT Project.                            *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/
 
///////////////////////////////////////////////////////////////////////////////
//                                                                           //
// a TPC tracker processing component for the HLT based on CA by Ivan Kisel  //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#if __GNUC__>= 3
using namespace std;
#endif

#include "AliHLTTPCCATrackerComponent.h"
#include "AliHLTTPCTransform.h"
#include "AliHLTTPCCATracker.h"
#include "AliHLTTPCCAHit.h"
#include "AliHLTTPCCAOutTrack.h"

#include "AliHLTTPCSpacePointData.h"
#include "AliHLTTPCClusterDataFormat.h"
#include "AliHLTTPCTransform.h"
#include "AliHLTTPCTrackSegmentData.h"
#include "AliHLTTPCTrackArray.h"
#include "AliHLTTPCTrackletDataFormat.h"
#include "AliHLTTPCDefinitions.h"
#include "TStopwatch.h"
#include "TMath.h"

/** ROOT macro for the implementation of ROOT specific class methods */
ClassImp(AliHLTTPCCATrackerComponent)

AliHLTTPCCATrackerComponent::AliHLTTPCCATrackerComponent()
  :
  fTracker(NULL),
  fBField(0)
{
  // see header file for class documentation
  // or
  // refer to README to build package
  // or
  // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
}

AliHLTTPCCATrackerComponent::AliHLTTPCCATrackerComponent(const AliHLTTPCCATrackerComponent&)
  :
  AliHLTProcessor(),
  fTracker(NULL),
  fBField(0)
{
  // see header file for class documentation
  HLTFatal("copy constructor untested");
}

AliHLTTPCCATrackerComponent& AliHLTTPCCATrackerComponent::operator=(const AliHLTTPCCATrackerComponent&)
{
  // see header file for class documentation
  HLTFatal("assignment operator untested");
  return *this;
}

AliHLTTPCCATrackerComponent::~AliHLTTPCCATrackerComponent()
{
  // see header file for class documentation
  delete fTracker;
}

//
// Public functions to implement AliHLTComponent's interface.
// These functions are required for the registration process
//

const char* AliHLTTPCCATrackerComponent::GetComponentID() 
{
  // see header file for class documentation
  return "TPCCATracker";
}

void AliHLTTPCCATrackerComponent::GetInputDataTypes( vector<AliHLTComponentDataType>& list) 
{
  // see header file for class documentation
  list.clear();
  list.push_back( AliHLTTPCDefinitions::fgkClustersDataType );
}

AliHLTComponentDataType AliHLTTPCCATrackerComponent::GetOutputDataType() 
{
  // see header file for class documentation
  return AliHLTTPCDefinitions::fgkTrackSegmentsDataType;
}

void AliHLTTPCCATrackerComponent::GetOutputDataSize( unsigned long& constBase, double& inputMultiplier ) 
{
  // define guess for the output data size
  constBase = 200;       // minimum size
  inputMultiplier = 0.5; // size relative to input 
}

AliHLTComponent* AliHLTTPCCATrackerComponent::Spawn() 
{
  // see header file for class documentation
  return new AliHLTTPCCATrackerComponent;
}

int AliHLTTPCCATrackerComponent::DoInit( int argc, const char** argv )
{
  // Initialize the CA tracker component 
  //
  // arguments could be:
  // bfield - the magnetic field value
  //

  if ( fTracker ) return EINPROGRESS;
  
  fTracker = new AliHLTTPCCATracker();
  
  // read command line

  int i = 0;
  char* cpErr;
  while ( i < argc ){
    if ( !strcmp( argv[i], "bfield" ) ){
      if ( i+1 >= argc )
	{
	  Logging( kHLTLogError, "HLT::TPCCATracker::DoInit", "Missing B-field", "Missing B-field specifier." );
	  return ENOTSUP;
	}
      fBField = strtod( argv[i+1], &cpErr );
      if ( *cpErr )
	{
	  Logging( kHLTLogError, "HLT::TPCCATracker::DoInit", "Missing multiplicity", "Cannot convert B-field specifier '%s'.", argv[i+1] );
	  return EINVAL;
	}

      Logging( kHLTLogDebug, "HLT::TPCCATracker::DoInit", "Reading command line",
	       "Magnetic field value is set to %f kG", fBField );

      i += 2;
      continue;
    }
    
    Logging(kHLTLogError, "HLT::TPCCATracker::DoInit", "Unknown Option", "Unknown option '%s'", argv[i] );
    return EINVAL;
  }
  
  return 0;
}

int AliHLTTPCCATrackerComponent::DoDeinit()
{
  // see header file for class documentation
  if ( fTracker ) delete fTracker;
  fTracker = NULL;  
  return 0;
}

int AliHLTTPCCATrackerComponent::DoEvent
( 
 const AliHLTComponentEventData& evtData, 
 const AliHLTComponentBlockData* blocks, 
 AliHLTComponentTriggerData& /*trigData*/, 
 AliHLTUInt8_t* outputPtr, 
 AliHLTUInt32_t& size, 
 vector<AliHLTComponentBlockData>& outputBlocks )
{

  AliHLTUInt32_t MaxBufferSize = size;
  size = 0; // output size

  TStopwatch timer;

  // Event reconstruction in one TPC slice with CA Tracker

  Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "DoEvent", "DoEvent()" );
  if ( evtData.fBlockCnt<=0 )
    {
      Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "DoEvent", "no blocks in event" );
      return 0;
    }
  
  const AliHLTComponentBlockData* iter = NULL;
  unsigned long ndx;
  AliHLTTPCClusterData* inPtrSP; 
 
  // Determine the slice number 
  
  Int_t slice=-1;
  {
    std::vector<Int_t> slices;
    std::vector<Int_t>::iterator slIter;
    std::vector<unsigned> sliceCnts;
    std::vector<unsigned>::iterator slCntIter;
  
    for ( ndx = 0; ndx < evtData.fBlockCnt; ndx++ ){
      iter = blocks+ndx;
      if ( iter->fDataType != AliHLTTPCDefinitions::fgkClustersDataType ) continue;

      slice = AliHLTTPCDefinitions::GetMinSliceNr( *iter );

      Bool_t found = 0;
      slCntIter = sliceCnts.begin();
      for( slIter = slices.begin(); slIter!=slices.end(); slIter++, slCntIter++ ){
	if ( *slIter == slice ){
	  found = kTRUE;
	  break;
	}
      }
      if ( !found ){
	slices.push_back( slice );
	sliceCnts.push_back( 1 );
      } else *slCntIter++;     
    }
  
    
    // Determine slice number to really use.
    if ( slices.size()>1 )
      {
	Logging( kHLTLogError, "HLT::TPCSliceTracker::DoEvent", "Multiple slices found in event",
		 "Multiple slice numbers found in event 0x%08lX (%lu). Determining maximum occuring slice number...",
		 evtData.fEventID, evtData.fEventID );
	unsigned maxCntSlice=0;
	slCntIter = sliceCnts.begin();
	for( slIter = slices.begin(); slIter != slices.end(); slIter++, slCntIter++ )
	  {
	    Logging( kHLTLogError, "HLT::TPCSliceTracker::DoEvent", "Multiple slices found in event",
		     "Slice %lu found %lu times.", *slIter, *slCntIter );
	    if ( maxCntSlice<*slCntIter )
	      {
		maxCntSlice = *slCntIter;
		slice = *slIter;
	      }
	  }
	Logging( kHLTLogError, "HLT::TPCSliceTracker::DoEvent", "Multiple slices found in event",
		 "Using slice %lu.", slice );
      }
    else if ( slices.size()>0 )
      {
	slice = *(slices.begin());
      }
  }
  
  if( slice<0 ){
    Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "DoEvent", "no slices found in event" );
    return 0;
  }


  // Initialize the tracker

  Double_t Bz = fBField;
  
  {
    if( !fTracker ) fTracker = new AliHLTTPCCATracker;
    Int_t iSec = slice;
    Double_t inRmin = 83.65; 
    //    Double_t inRmax = 133.3;
    //    Double_t outRmin = 133.5; 
    Double_t outRmax = 247.7;
    Double_t plusZmin = 0.0529937; 
    Double_t plusZmax = 249.778; 
    Double_t minusZmin = -249.645; 
    Double_t minusZmax = -0.0799937; 
    Double_t dalpha = 0.349066;
    Double_t alpha = 0.174533 + dalpha*iSec;
    
    Bool_t zPlus = (iSec<18 );
    Double_t zMin =  zPlus ?plusZmin :minusZmin;
    Double_t zMax =  zPlus ?plusZmax :minusZmax;
    //TPCZmin = -249.645, ZMax = 249.778    
    //    Double_t rMin =  inRmin;
    //    Double_t rMax =  outRmax;
    Int_t NRows = AliHLTTPCTransform::GetNRows();
        
    Double_t padPitch = 0.4;
    Double_t sigmaZ = 0.228808;
    
     Double_t rowX[NRows];
    for( Int_t irow=0; irow<NRows; irow++){
      rowX[irow] = AliHLTTPCTransform::Row2X( irow );
    }     
     
    AliHLTTPCCAParam param;
    param.Initialize( iSec, NRows, rowX, alpha, dalpha,
		      inRmin, outRmax, zMin, zMax, padPitch, sigmaZ, Bz );
    param.YErrorCorrection() = 1;
    param.ZErrorCorrection() = 2;

    fTracker->Initialize( param ); 

  }

    
  // min and max patch numbers and row numbers

  Int_t row[2] = {0,0};
  Int_t minPatch=INT_MAX, maxPatch = -1;

  // total n Hits

  Int_t nHitsTotal = 0;

  // sort patches

  std::vector<unsigned long> patchIndices;

  for ( ndx = 0; ndx < evtData.fBlockCnt; ndx++ ){
    iter = blocks+ndx;      
    if( iter->fDataType != AliHLTTPCDefinitions::fgkClustersDataType ) continue;
    if( slice!=AliHLTTPCDefinitions::GetMinSliceNr( *iter ) ) continue;
    inPtrSP = (AliHLTTPCClusterData*)(iter->fPtr);
    nHitsTotal+=inPtrSP->fSpacePointCnt;
    Int_t patch = AliHLTTPCDefinitions::GetMinPatchNr( *iter );
    if ( minPatch>patch ){
      minPatch = patch;
      row[0] = AliHLTTPCTransform::GetFirstRow( patch );
    }
    if ( maxPatch<patch ){
      maxPatch = patch;
      row[1] = AliHLTTPCTransform::GetLastRow( patch );
    }
    std::vector<unsigned long>::iterator pIter = patchIndices.begin(); 
    while( pIter!=patchIndices.end() && AliHLTTPCDefinitions::GetMinPatchNr( blocks[*pIter] ) < patch ){
      pIter++;
    }
    patchIndices.insert( pIter, ndx );
  }
           

  // pass event to CA Tracker
  
  fTracker->StartEvent();

  AliHLTTPCCAHit vHits[nHitsTotal]; // CA hit array
  Double_t vHitStoreX[nHitsTotal];       // hit X coordinates
  Int_t vHitStoreID[nHitsTotal];            // hit ID's
  Int_t vHitRowID[nHitsTotal];            // hit ID's

  Int_t nHits = 0;
 
  Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Reading hits",
	   "Total %d hits to read for slice %d", nHitsTotal, slice );

  Int_t nClusters=0;

  for( std::vector<unsigned long>::iterator pIter = patchIndices.begin(); pIter!=patchIndices.end(); pIter++ ){
    ndx = *pIter;
    iter = blocks+ndx;
      
    Int_t patch = AliHLTTPCDefinitions::GetMinPatchNr( *iter );
    inPtrSP = (AliHLTTPCClusterData*)(iter->fPtr);
      
    Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Reading hits",
	     "Reading %d hits for slice %d - patch %d", inPtrSP->fSpacePointCnt, slice, patch );
      
    // Read patch hits, row by row

    Int_t oldRow = -1;
    Int_t nRowHits = 0;
    Int_t firstRowHit = 0;
    for (UInt_t i=0; i<inPtrSP->fSpacePointCnt; i++ ){	
      AliHLTTPCSpacePointData* pSP = &(inPtrSP->fSpacePoints[i]);

      if( pSP->fPadRow != oldRow ){
	if( oldRow>=0 ) fTracker->ReadHitRow( oldRow, vHits+firstRowHit, nRowHits );
	oldRow = pSP->fPadRow;
	firstRowHit = nHits;
	nRowHits = 0;
      }
      AliHLTTPCCAHit &h = vHits[nHits];
      if( TMath::Abs(pSP->fX- fTracker->Rows()[pSP->fPadRow].X() )>1.e-4 ) cout<<"row "<<(Int_t)pSP->fPadRow<<" "<<fTracker->Rows()[pSP->fPadRow].X()-pSP->fX <<endl;

      h.Y() = pSP->fY;
      h.Z() = pSP->fZ;
      h.ErrY() = TMath::Sqrt(TMath::Abs(pSP->fSigmaY2));
      h.ErrZ() = TMath::Sqrt(TMath::Abs(pSP->fSigmaZ2));  
      if( h.ErrY()<.1 ) h.ErrY() = .1;
      if( h.ErrZ()<.1 ) h.ErrZ() = .1;
      if( h.ErrY()>1. ) h.ErrY() = 1.;
      if( h.ErrZ()>1. ) h.ErrZ() = 1.;
      h.ID() = nHits;
      vHitStoreX[nHits] = pSP->fX;
      vHitStoreID[nHits] = pSP->fID;
      vHitRowID[nHits] = pSP->fPadRow;
      nHits++;	
      nRowHits++;
      nClusters++;
    }	
    if( oldRow>=0 ) fTracker->ReadHitRow( oldRow, vHits+firstRowHit, nRowHits );
  }

  // reconstruct the event  

  TStopwatch timerReco;

  fTracker->Reconstruct();

  timerReco.Stop();

  Int_t ret = 0;

  Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Reconstruct",
	   "%d tracks found for slice %d",fTracker->NOutTracks(), slice);

  // write reconstructed tracks

  AliHLTTPCTrackletData* outPtr = (AliHLTTPCTrackletData*)(outputPtr);

  AliHLTTPCTrackSegmentData* currOutTracklet = outPtr->fTracklets;

  Int_t ntracks = fTracker->NOutTracks();

  UInt_t mySize =   ((AliHLTUInt8_t *)currOutTracklet) -  ((AliHLTUInt8_t *)outputPtr);

  outPtr->fTrackletCnt = 0; 

  for( int itr=0; itr<ntracks; itr++ ){
    
    AliHLTTPCCAOutTrack &t = fTracker->OutTracks()[itr];    

    //Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Wrtite output","track %d with %d hits", itr, t.NHits());

    // calculate output track size

    UInt_t dSize = sizeof(AliHLTTPCTrackSegmentData) + t.NHits()*sizeof(UInt_t);
    
    if( mySize + dSize > MaxBufferSize ){
      Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "Wrtite output","Output buffer size exceed (buffer size %d, current size %d), %d tracks are not stored", MaxBufferSize, mySize, ntracks-itr+1);
      ret = -ENOSPC;
      break;
    }
    
    // convert CA track parameters to HLT Track Segment

    Int_t iFirstHit = fTracker->OutTrackHits()[t.FirstHitRef()];
    Int_t iLastHit = fTracker->OutTrackHits()[t.FirstHitRef()+t.NHits()-1];
    
    AliHLTTPCCAHit &firstHit = vHits[iFirstHit];
    AliHLTTPCCAHit &lastHit = vHits[iLastHit];
   
    t.Param().TransportBz(Bz, vHitStoreX[iFirstHit], firstHit.Y(), firstHit.Z() );

    currOutTracklet->fX = t.Param().Par()[0];
    currOutTracklet->fY = t.Param().Par()[1];
    currOutTracklet->fZ = t.Param().Par()[2];
    Double_t qp = t.Param().Par()[6];
    Double_t p = TMath::Abs(qp)>1.e-5 ?1./TMath::Abs(qp) :1.e5;
    Double_t ex = t.Param().Par()[3];
    Double_t ey = t.Param().Par()[4];
    Double_t ez = t.Param().Par()[5];
    Double_t et = TMath::Sqrt( ex*ex + ey*ey );
    
    currOutTracklet->fCharge = (qp>0) ?+1 :(qp<0 ?-1 :0);
    currOutTracklet->fPt = p*et;

    Double_t h3 =  TMath::Abs(ex) >1.e-5 ? p*ex/et :0;
    Double_t h4 =  TMath::Abs(ey) >1.e-5 ? p*ey/et :0;
    Double_t h5;
    Double_t h6 =  - currOutTracklet->fCharge * p * currOutTracklet->fPt;
  
    currOutTracklet->fPterr = ( h3*h3*t.Param().Cov()[9] + h4*h4*t.Param().Cov()[14] + h6*h6*t.Param().Cov()[27] 
				+ 2.*(h3*h4*t.Param().Cov()[13]+h3*h6*t.Param().Cov()[24]+h4*h6*t.Param().Cov()[25] )
				);    
    currOutTracklet->fPsi = TMath::ATan2(ey, ex);
    
    h3 =  ex/(et*et);
    h4 = -ey/(et*et);
    currOutTracklet->fPsierr = h3*h3*t.Param().Cov()[9] + h4*h4*t.Param().Cov()[14] + 2.*h3*h4*t.Param().Cov()[13];
    
    currOutTracklet->fTgl = TMath::Abs(et)>1.e-5  ? ez/et :1.e5;
      
    if( TMath::Abs(et) >1.e-2 ){
      h3 = -ez*ex/et/et;
      h4 = -ez*ey/et/et;
      h5 = 1.;
      currOutTracklet->fTglerr =  ( h3*h3*t.Param().Cov()[9] + h4*h4*t.Param().Cov()[14] + h5*h5*t.Param().Cov()[20] 
				    + 2.*(h3*h4*t.Param().Cov()[13]+h3*h5*t.Param().Cov()[18]+h4*h5*t.Param().Cov()[19] )
				    )/et/et;
    }else{
      currOutTracklet->fTglerr =  1.e-2;
    }

    currOutTracklet->fCharge = -currOutTracklet->fCharge;
    
    t.Param().TransportBz(Bz, vHitStoreX[iLastHit], lastHit.Y(), lastHit.Z() );
     
    currOutTracklet->fLastX = t.Param().Par()[0];
    currOutTracklet->fLastY = t.Param().Par()[1];
    currOutTracklet->fLastZ = t.Param().Par()[2];

#ifdef INCLUDE_TPC_HOUGH
#ifdef ROWHOUGHPARAMS
    currOutTracklet->fTrackID = 0;
    currOutTracklet->fRowRange1 = vHitRowID[iFirstHit];
    currOutTracklet->fRowRange2 = vHitRowID[iLastHit];
    currOutTracklet->fSector = slice;
    currOutTracklet->fPID = 211;
#endif
#endif // INCLUDE_TPC_HOUGH


    currOutTracklet->fNPoints = t.NHits();

    for( Int_t i=0; i<t.NHits(); i++ ){
      currOutTracklet->fPointIDs[i] = vHitStoreID[fTracker->OutTrackHits()[t.FirstHitRef()+i]];
    }

    currOutTracklet = (AliHLTTPCTrackSegmentData*)( (Byte_t *)currOutTracklet + dSize );
    mySize+=dSize;
    outPtr->fTrackletCnt++; 
  }
  
  
  AliHLTComponentBlockData bd;
  FillBlockData( bd );
  bd.fOffset = 0;
  bd.fSize = mySize;
  bd.fSpecification = AliHLTTPCDefinitions::EncodeDataSpecification( slice, slice, minPatch, maxPatch );      
  outputBlocks.push_back( bd );
  
  size = mySize;
  
  timerReco.Stop();

  // Set log level to "Warning" for on-line system monitoring

  Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "Tracks",
 	   "CATracker slice %d: output %d tracks;  input %d clusters, patches %d..%d, rows %d..%d; reco time %d/%d us", 
	   slice, ntracks, nClusters, minPatch, maxPatch, row[0], row[1], (Int_t) (timer.RealTime()*1.e6), (Int_t) (timerReco.RealTime()*1.e6) );

  return ret;

}
Commit	Line	Data
cf471b1e	1	// @(#) $Id$
	2	/**************************************************************************
	3	* This file is property of and copyright by the ALICE HLT Project *
	4	* ALICE Experiment at CERN, All rights reserved. *
	5	* *
	6	* Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de> *
	7	* Ivan Kisel <kisel@kip.uni-heidelberg.de> *
	8	* for The ALICE HLT Project. *
	9	* *
	10	* Permission to use, copy, modify and distribute this software and its *
	11	* documentation strictly for non-commercial purposes is hereby granted *
	12	* without fee, provided that the above copyright notice appears in all *
	13	* copies and that both the copyright notice and this permission notice *
	14	* appear in the supporting documentation. The authors make no claims *
	15	* about the suitability of this software for any purpose. It is *
	16	* provided "as is" without express or implied warranty. *
	17	**************************************************************************/
	18
	19	///////////////////////////////////////////////////////////////////////////////
	20	// //
	21	// a TPC tracker processing component for the HLT based on CA by Ivan Kisel //
	22	// //
	23	///////////////////////////////////////////////////////////////////////////////
	24
	25	#if __GNUC__>= 3
	26	using namespace std;
	27	#endif
	28
	29	#include "AliHLTTPCCATrackerComponent.h"
	30	#include "AliHLTTPCTransform.h"
	31	#include "AliHLTTPCCATracker.h"
	32	#include "AliHLTTPCCAHit.h"
	33	#include "AliHLTTPCCAOutTrack.h"
	34
cf471b1e	35	#include "AliHLTTPCSpacePointData.h"
cf471b1e	36	#include "AliHLTTPCClusterDataFormat.h"
	37	#include "AliHLTTPCTransform.h"
	38	#include "AliHLTTPCTrackSegmentData.h"
	39	#include "AliHLTTPCTrackArray.h"
	40	#include "AliHLTTPCTrackletDataFormat.h"
	41	#include "AliHLTTPCDefinitions.h"
dc4788ec	42	#include "TStopwatch.h"
cf471b1e	43	#include "TMath.h"
cf471b1e	44
672f8b8c	45	/** ROOT macro for the implementation of ROOT specific class methods */
cf471b1e	46	ClassImp(AliHLTTPCCATrackerComponent)
	47
	48	AliHLTTPCCATrackerComponent::AliHLTTPCCATrackerComponent()
	49	:
	50	fTracker(NULL),
cf471b1e	51	fBField(0)
	52	{
	53	// see header file for class documentation
	54	// or
	55	// refer to README to build package
	56	// or
	57	// visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
	58	}
	59
	60	AliHLTTPCCATrackerComponent::AliHLTTPCCATrackerComponent(const AliHLTTPCCATrackerComponent&)
	61	:
c61a7285	62	AliHLTProcessor(),
cf471b1e	63	fTracker(NULL),
cf471b1e	64	fBField(0)
	65	{
	66	// see header file for class documentation
	67	HLTFatal("copy constructor untested");
	68	}
	69
	70	AliHLTTPCCATrackerComponent& AliHLTTPCCATrackerComponent::operator=(const AliHLTTPCCATrackerComponent&)
	71	{
	72	// see header file for class documentation
	73	HLTFatal("assignment operator untested");
	74	return *this;
	75	}
	76
	77	AliHLTTPCCATrackerComponent::~AliHLTTPCCATrackerComponent()
4c256004	78	{
cf471b1e	79	// see header file for class documentation
4c256004	80	delete fTracker;
4c256004	81	}
cf471b1e	82
4c256004	83	//
cf471b1e	84	// Public functions to implement AliHLTComponent's interface.
cf471b1e	85	// These functions are required for the registration process
4c256004	86	//
cf471b1e	87
cf471b1e	88	const char* AliHLTTPCCATrackerComponent::GetComponentID()
4c256004	89	{
cf471b1e	90	// see header file for class documentation
4c256004	91	return "TPCCATracker";
4c256004	92	}
cf471b1e	93
cf471b1e	94	void AliHLTTPCCATrackerComponent::GetInputDataTypes( vector<AliHLTComponentDataType>& list)
4c256004	95	{
cf471b1e	96	// see header file for class documentation
4c256004	97	list.clear();
	98	list.push_back( AliHLTTPCDefinitions::fgkClustersDataType );
	99	}
cf471b1e	100
cf471b1e	101	AliHLTComponentDataType AliHLTTPCCATrackerComponent::GetOutputDataType()
4c256004	102	{
cf471b1e	103	// see header file for class documentation
4c256004	104	return AliHLTTPCDefinitions::fgkTrackSegmentsDataType;
4c256004	105	}
cf471b1e	106
cf471b1e	107	void AliHLTTPCCATrackerComponent::GetOutputDataSize( unsigned long& constBase, double& inputMultiplier )
4c256004	108	{
	109	// define guess for the output data size
	110	constBase = 200; // minimum size
	111	inputMultiplier = 0.5; // size relative to input
	112	}
cf471b1e	113
cf471b1e	114	AliHLTComponent* AliHLTTPCCATrackerComponent::Spawn()
4c256004	115	{
cf471b1e	116	// see header file for class documentation
4c256004	117	return new AliHLTTPCCATrackerComponent;
4c256004	118	}
cf471b1e	119
cf471b1e	120	int AliHLTTPCCATrackerComponent::DoInit( int argc, const char** argv )
4c256004	121	{
	122	// Initialize the CA tracker component
	123	//
	124	// arguments could be:
	125	// bfield - the magnetic field value
	126	//
cf471b1e	127
4c256004	128	if ( fTracker ) return EINPROGRESS;
	129
	130	fTracker = new AliHLTTPCCATracker();
	131
	132	// read command line
cf471b1e	133
4c256004	134	int i = 0;
	135	char* cpErr;
	136	while ( i < argc ){
	137	if ( !strcmp( argv[i], "bfield" ) ){
	138	if ( i+1 >= argc )
cf471b1e	139	{
4c256004	140	Logging( kHLTLogError, "HLT::TPCCATracker::DoInit", "Missing B-field", "Missing B-field specifier." );
	141	return ENOTSUP;
	142	}
	143	fBField = strtod( argv[i+1], &cpErr );
	144	if ( *cpErr )
	145	{
	146	Logging( kHLTLogError, "HLT::TPCCATracker::DoInit", "Missing multiplicity", "Cannot convert B-field specifier '%s'.", argv[i+1] );
	147	return EINVAL;
cf471b1e	148	}
cf471b1e	149
4c256004	150	Logging( kHLTLogDebug, "HLT::TPCCATracker::DoInit", "Reading command line",
	151	"Magnetic field value is set to %f kG", fBField );
	152
	153	i += 2;
	154	continue;
cf471b1e	155	}
4c256004	156
	157	Logging(kHLTLogError, "HLT::TPCCATracker::DoInit", "Unknown Option", "Unknown option '%s'", argv[i] );
	158	return EINVAL;
	159	}
	160
	161	return 0;
	162	}
cf471b1e	163
cf471b1e	164	int AliHLTTPCCATrackerComponent::DoDeinit()
4c256004	165	{
cf471b1e	166	// see header file for class documentation
4c256004	167	if ( fTracker ) delete fTracker;
	168	fTracker = NULL;
	169	return 0;
	170	}
cf471b1e	171
4c256004	172	int AliHLTTPCCATrackerComponent::DoEvent
	173	(
	174	const AliHLTComponentEventData& evtData,
	175	const AliHLTComponentBlockData* blocks,
c61a7285	176	AliHLTComponentTriggerData& /trigData/,
4c256004	177	AliHLTUInt8_t* outputPtr,
	178	AliHLTUInt32_t& size,
	179	vector<AliHLTComponentBlockData>& outputBlocks )
cf471b1e	180	{
dc4788ec	181
	182	AliHLTUInt32_t MaxBufferSize = size;
	183	size = 0; // output size
	184
	185	TStopwatch timer;
	186
4c256004	187	// Event reconstruction in one TPC slice with CA Tracker
cf471b1e	188
	189	Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "DoEvent", "DoEvent()" );
	190	if ( evtData.fBlockCnt<=0 )
	191	{
	192	Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "DoEvent", "no blocks in event" );
	193	return 0;
	194	}
4c256004	195
cf471b1e	196	const AliHLTComponentBlockData* iter = NULL;
cf471b1e	197	unsigned long ndx;
4c256004	198	AliHLTTPCClusterData* inPtrSP;
cf471b1e	199
4c256004	200	// Determine the slice number
cf471b1e	201
4c256004	202	Int_t slice=-1;
	203	{
	204	std::vector<Int_t> slices;
	205	std::vector<Int_t>::iterator slIter;
	206	std::vector<unsigned> sliceCnts;
	207	std::vector<unsigned>::iterator slCntIter;
cf471b1e	208
4c256004	209	for ( ndx = 0; ndx < evtData.fBlockCnt; ndx++ ){
cf471b1e	210	iter = blocks+ndx;
4c256004	211	if ( iter->fDataType != AliHLTTPCDefinitions::fgkClustersDataType ) continue;
4c256004	212
cf471b1e	213	slice = AliHLTTPCDefinitions::GetMinSliceNr( *iter );
dc4788ec	214
4c256004	215	Bool_t found = 0;
cf471b1e	216	slCntIter = sliceCnts.begin();
4c256004	217	for( slIter = slices.begin(); slIter!=slices.end(); slIter++, slCntIter++ ){
	218	if ( *slIter == slice ){
	219	found = kTRUE;
	220	break;
cf471b1e	221	}
4c256004	222	}
	223	if ( !found ){
	224	slices.push_back( slice );
	225	sliceCnts.push_back( 1 );
	226	} else *slCntIter++;
cf471b1e	227	}
	228
	229
4c256004	230	// Determine slice number to really use.
	231	if ( slices.size()>1 )
	232	{
	233	Logging( kHLTLogError, "HLT::TPCSliceTracker::DoEvent", "Multiple slices found in event",
	234	"Multiple slice numbers found in event 0x%08lX (%lu). Determining maximum occuring slice number...",
	235	evtData.fEventID, evtData.fEventID );
	236	unsigned maxCntSlice=0;
	237	slCntIter = sliceCnts.begin();
	238	for( slIter = slices.begin(); slIter != slices.end(); slIter++, slCntIter++ )
	239	{
	240	Logging( kHLTLogError, "HLT::TPCSliceTracker::DoEvent", "Multiple slices found in event",
	241	"Slice %lu found %lu times.", slIter, slCntIter );
	242	if ( maxCntSlice<*slCntIter )
	243	{
	244	maxCntSlice = *slCntIter;
	245	slice = *slIter;
	246	}
	247	}
	248	Logging( kHLTLogError, "HLT::TPCSliceTracker::DoEvent", "Multiple slices found in event",
	249	"Using slice %lu.", slice );
	250	}
	251	else if ( slices.size()>0 )
	252	{
	253	slice = *(slices.begin());
	254	}
	255	}
	256
	257	if( slice<0 ){
	258	Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "DoEvent", "no slices found in event" );
	259	return 0;
	260	}
cf471b1e	261
4c256004	262
	263	// Initialize the tracker
	264
	265	Double_t Bz = fBField;
	266
cf471b1e	267	{
4c256004	268	if( !fTracker ) fTracker = new AliHLTTPCCATracker;
cf471b1e	269	Int_t iSec = slice;
cf471b1e	270	Double_t inRmin = 83.65;
c61a7285	271	// Double_t inRmax = 133.3;
c61a7285	272	// Double_t outRmin = 133.5;
cf471b1e	273	Double_t outRmax = 247.7;
	274	Double_t plusZmin = 0.0529937;
	275	Double_t plusZmax = 249.778;
	276	Double_t minusZmin = -249.645;
	277	Double_t minusZmax = -0.0799937;
	278	Double_t dalpha = 0.349066;
	279	Double_t alpha = 0.174533 + dalpha*iSec;
	280
dc4788ec	281	Bool_t zPlus = (iSec<18 );
cf471b1e	282	Double_t zMin = zPlus ?plusZmin :minusZmin;
cf471b1e	283	Double_t zMax = zPlus ?plusZmax :minusZmax;
dc4788ec	284	//TPCZmin = -249.645, ZMax = 249.778
c61a7285	285	// Double_t rMin = inRmin;
c61a7285	286	// Double_t rMax = outRmax;
dc4788ec	287	Int_t NRows = AliHLTTPCTransform::GetNRows();
dc4788ec	288
cf471b1e	289	Double_t padPitch = 0.4;
	290	Double_t sigmaZ = 0.228808;
	291
dc4788ec	292	Double_t rowX[NRows];
	293	for( Int_t irow=0; irow<NRows; irow++){
	294	rowX[irow] = AliHLTTPCTransform::Row2X( irow );
	295	}
cf471b1e	296
cf471b1e	297	AliHLTTPCCAParam param;
dc4788ec	298	param.Initialize( iSec, NRows, rowX, alpha, dalpha,
cf471b1e	299	inRmin, outRmax, zMin, zMax, padPitch, sigmaZ, Bz );
dc4788ec	300	param.YErrorCorrection() = 1;
dc4788ec	301	param.ZErrorCorrection() = 2;
4c256004	302
dc4788ec	303	fTracker->Initialize( param );
4c256004	304
cf471b1e	305	}
cf471b1e	306
4c256004	307
	308	// min and max patch numbers and row numbers
	309
	310	Int_t row[2] = {0,0};
dc4788ec	311	Int_t minPatch=INT_MAX, maxPatch = -1;
4c256004	312
4c256004	313	// total n Hits
cf471b1e	314
cf471b1e	315	Int_t nHitsTotal = 0;
4c256004	316
	317	// sort patches
	318
	319	std::vector<unsigned long> patchIndices;
	320
	321	for ( ndx = 0; ndx < evtData.fBlockCnt; ndx++ ){
	322	iter = blocks+ndx;
	323	if( iter->fDataType != AliHLTTPCDefinitions::fgkClustersDataType ) continue;
	324	if( slice!=AliHLTTPCDefinitions::GetMinSliceNr( *iter ) ) continue;
cf471b1e	325	inPtrSP = (AliHLTTPCClusterData*)(iter->fPtr);
cf471b1e	326	nHitsTotal+=inPtrSP->fSpacePointCnt;
4c256004	327	Int_t patch = AliHLTTPCDefinitions::GetMinPatchNr( *iter );
	328	if ( minPatch>patch ){
	329	minPatch = patch;
	330	row[0] = AliHLTTPCTransform::GetFirstRow( patch );
	331	}
	332	if ( maxPatch<patch ){
	333	maxPatch = patch;
	334	row[1] = AliHLTTPCTransform::GetLastRow( patch );
	335	}
	336	std::vector<unsigned long>::iterator pIter = patchIndices.begin();
	337	while( pIter!=patchIndices.end() && AliHLTTPCDefinitions::GetMinPatchNr( blocks[*pIter] ) < patch ){
	338	pIter++;
	339	}
	340	patchIndices.insert( pIter, ndx );
cf471b1e	341	}
4c256004	342
	343
	344	// pass event to CA Tracker
	345
	346	fTracker->StartEvent();
	347
dc4788ec	348	AliHLTTPCCAHit vHits[nHitsTotal]; // CA hit array
	349	Double_t vHitStoreX[nHitsTotal]; // hit X coordinates
	350	Int_t vHitStoreID[nHitsTotal]; // hit ID's
	351	Int_t vHitRowID[nHitsTotal]; // hit ID's
4c256004	352
cf471b1e	353	Int_t nHits = 0;
4c256004	354
	355	Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Reading hits",
	356	"Total %d hits to read for slice %d", nHitsTotal, slice );
	357
dc4788ec	358	Int_t nClusters=0;
dc4788ec	359
4c256004	360	for( std::vector<unsigned long>::iterator pIter = patchIndices.begin(); pIter!=patchIndices.end(); pIter++ ){
	361	ndx = *pIter;
	362	iter = blocks+ndx;
cf471b1e	363
4c256004	364	Int_t patch = AliHLTTPCDefinitions::GetMinPatchNr( *iter );
4c256004	365	inPtrSP = (AliHLTTPCClusterData*)(iter->fPtr);
cf471b1e	366
4c256004	367	Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Reading hits",
4c256004	368	"Reading %d hits for slice %d - patch %d", inPtrSP->fSpacePointCnt, slice, patch );
cf471b1e	369
4c256004	370	// Read patch hits, row by row
	371
	372	Int_t oldRow = -1;
	373	Int_t nRowHits = 0;
	374	Int_t firstRowHit = 0;
	375	for (UInt_t i=0; i<inPtrSP->fSpacePointCnt; i++ ){
	376	AliHLTTPCSpacePointData* pSP = &(inPtrSP->fSpacePoints[i]);
	377
4c256004	378	if( pSP->fPadRow != oldRow ){
	379	if( oldRow>=0 ) fTracker->ReadHitRow( oldRow, vHits+firstRowHit, nRowHits );
	380	oldRow = pSP->fPadRow;
	381	firstRowHit = nHits;
	382	nRowHits = 0;
	383	}
	384	AliHLTTPCCAHit &h = vHits[nHits];
dc4788ec	385	if( TMath::Abs(pSP->fX- fTracker->Rows()[pSP->fPadRow].X() )>1.e-4 ) cout<<"row "<<(Int_t)pSP->fPadRow<<" "<<fTracker->Rows()[pSP->fPadRow].X()-pSP->fX <<endl;
dc4788ec	386
4c256004	387	h.Y() = pSP->fY;
4c256004	388	h.Z() = pSP->fZ;
dc4788ec	389	h.ErrY() = TMath::Sqrt(TMath::Abs(pSP->fSigmaY2));
	390	h.ErrZ() = TMath::Sqrt(TMath::Abs(pSP->fSigmaZ2));
	391	if( h.ErrY()<.1 ) h.ErrY() = .1;
	392	if( h.ErrZ()<.1 ) h.ErrZ() = .1;
	393	if( h.ErrY()>1. ) h.ErrY() = 1.;
	394	if( h.ErrZ()>1. ) h.ErrZ() = 1.;
4c256004	395	h.ID() = nHits;
	396	vHitStoreX[nHits] = pSP->fX;
	397	vHitStoreID[nHits] = pSP->fID;
dc4788ec	398	vHitRowID[nHits] = pSP->fPadRow;
4c256004	399	nHits++;
4c256004	400	nRowHits++;
dc4788ec	401	nClusters++;
4c256004	402	}
	403	if( oldRow>=0 ) fTracker->ReadHitRow( oldRow, vHits+firstRowHit, nRowHits );
	404	}
	405
cf471b1e	406	// reconstruct the event
cf471b1e	407
dc4788ec	408	TStopwatch timerReco;
dc4788ec	409
cf471b1e	410	fTracker->Reconstruct();
cf471b1e	411
dc4788ec	412	timerReco.Stop();
dc4788ec	413
4c256004	414	Int_t ret = 0;
	415
	416	Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Reconstruct",
	417	"%d tracks found for slice %d",fTracker->NOutTracks(), slice);
cf471b1e	418
	419	// write reconstructed tracks
	420
	421	AliHLTTPCTrackletData* outPtr = (AliHLTTPCTrackletData*)(outputPtr);
	422
	423	AliHLTTPCTrackSegmentData* currOutTracklet = outPtr->fTracklets;
	424
	425	Int_t ntracks = fTracker->NOutTracks();
4c256004	426
	427	UInt_t mySize = ((AliHLTUInt8_t )currOutTracklet) - ((AliHLTUInt8_t )outputPtr);
	428
	429	outPtr->fTrackletCnt = 0;
	430
cf471b1e	431	for( int itr=0; itr<ntracks; itr++ ){
	432
	433	AliHLTTPCCAOutTrack &t = fTracker->OutTracks()[itr];
4c256004	434
	435	//Logging( kHLTLogDebug, "HLT::TPCCATracker::DoEvent", "Wrtite output","track %d with %d hits", itr, t.NHits());
	436
	437	// calculate output track size
	438
	439	UInt_t dSize = sizeof(AliHLTTPCTrackSegmentData) + t.NHits()*sizeof(UInt_t);
	440
dc4788ec	441	if( mySize + dSize > MaxBufferSize ){
dc4788ec	442	Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "Wrtite output","Output buffer size exceed (buffer size %d, current size %d), %d tracks are not stored", MaxBufferSize, mySize, ntracks-itr+1);
4c256004	443	ret = -ENOSPC;
	444	break;
	445	}
	446
	447	// convert CA track parameters to HLT Track Segment
	448
cf471b1e	449	Int_t iFirstHit = fTracker->OutTrackHits()[t.FirstHitRef()];
cf471b1e	450	Int_t iLastHit = fTracker->OutTrackHits()[t.FirstHitRef()+t.NHits()-1];
4c256004	451
cf471b1e	452	AliHLTTPCCAHit &firstHit = vHits[iFirstHit];
cf471b1e	453	AliHLTTPCCAHit &lastHit = vHits[iLastHit];
4c256004	454
	455	t.Param().TransportBz(Bz, vHitStoreX[iFirstHit], firstHit.Y(), firstHit.Z() );
	456
cf471b1e	457	currOutTracklet->fX = t.Param().Par()[0];
	458	currOutTracklet->fY = t.Param().Par()[1];
	459	currOutTracklet->fZ = t.Param().Par()[2];
	460	Double_t qp = t.Param().Par()[6];
	461	Double_t p = TMath::Abs(qp)>1.e-5 ?1./TMath::Abs(qp) :1.e5;
	462	Double_t ex = t.Param().Par()[3];
	463	Double_t ey = t.Param().Par()[4];
	464	Double_t ez = t.Param().Par()[5];
	465	Double_t et = TMath::Sqrt( exex + eyey );
4c256004	466
cf471b1e	467	currOutTracklet->fCharge = (qp>0) ?+1 :(qp<0 ?-1 :0);
cf471b1e	468	currOutTracklet->fPt = p*et;
4c256004	469
cf471b1e	470	Double_t h3 = TMath::Abs(ex) >1.e-5 ? p*ex/et :0;
	471	Double_t h4 = TMath::Abs(ey) >1.e-5 ? p*ey/et :0;
	472	Double_t h5;
	473	Double_t h6 = - currOutTracklet->fCharge * p * currOutTracklet->fPt;
4c256004	474
cf471b1e	475	currOutTracklet->fPterr = ( h3h3t.Param().Cov()[9] + h4h4t.Param().Cov()[14] + h6h6t.Param().Cov()[27]
cf471b1e	476	+ 2.(h3h4t.Param().Cov()[13]+h3h6t.Param().Cov()[24]+h4h6*t.Param().Cov()[25] )
4c256004	477	);
dc4788ec	478	currOutTracklet->fPsi = TMath::ATan2(ey, ex);
cf471b1e	479
	480	h3 = ex/(et*et);
	481	h4 = -ey/(et*et);
	482	currOutTracklet->fPsierr = h3h3t.Param().Cov()[9] + h4h4t.Param().Cov()[14] + 2.h3h4*t.Param().Cov()[13];
	483
dc4788ec	484	currOutTracklet->fTgl = TMath::Abs(et)>1.e-5 ? ez/et :1.e5;
cf471b1e	485
dc4788ec	486	if( TMath::Abs(et) >1.e-2 ){
	487	h3 = -ez*ex/et/et;
	488	h4 = -ez*ey/et/et;
	489	h5 = 1.;
	490	currOutTracklet->fTglerr = ( h3h3t.Param().Cov()[9] + h4h4t.Param().Cov()[14] + h5h5t.Param().Cov()[20]
	491	+ 2.(h3h4t.Param().Cov()[13]+h3h5t.Param().Cov()[18]+h4h5*t.Param().Cov()[19] )
	492	)/et/et;
	493	}else{
	494	currOutTracklet->fTglerr = 1.e-2;
	495	}
	496
cf471b1e	497	currOutTracklet->fCharge = -currOutTracklet->fCharge;
4c256004	498
	499	t.Param().TransportBz(Bz, vHitStoreX[iLastHit], lastHit.Y(), lastHit.Z() );
	500
cf471b1e	501	currOutTracklet->fLastX = t.Param().Par()[0];
	502	currOutTracklet->fLastY = t.Param().Par()[1];
	503	currOutTracklet->fLastZ = t.Param().Par()[2];
	504
dc4788ec	505	#ifdef INCLUDE_TPC_HOUGH
	506	#ifdef ROWHOUGHPARAMS
	507	currOutTracklet->fTrackID = 0;
	508	currOutTracklet->fRowRange1 = vHitRowID[iFirstHit];
	509	currOutTracklet->fRowRange2 = vHitRowID[iLastHit];
	510	currOutTracklet->fSector = slice;
	511	currOutTracklet->fPID = 211;
	512	#endif
	513	#endif // INCLUDE_TPC_HOUGH
	514
	515
cf471b1e	516	currOutTracklet->fNPoints = t.NHits();
	517
	518	for( Int_t i=0; i<t.NHits(); i++ ){
4c256004	519	currOutTracklet->fPointIDs[i] = vHitStoreID[fTracker->OutTrackHits()[t.FirstHitRef()+i]];
cf471b1e	520	}
4c256004	521
	522	currOutTracklet = (AliHLTTPCTrackSegmentData)( (Byte_t )currOutTracklet + dSize );
	523	mySize+=dSize;
	524	outPtr->fTrackletCnt++;
cf471b1e	525	}
dc4788ec	526
cf471b1e	527
cf471b1e	528	AliHLTComponentBlockData bd;
cf471b1e	529	FillBlockData( bd );
4c256004	530	bd.fOffset = 0;
cf471b1e	531	bd.fSize = mySize;
	532	bd.fSpecification = AliHLTTPCDefinitions::EncodeDataSpecification( slice, slice, minPatch, maxPatch );
	533	outputBlocks.push_back( bd );
	534
cf471b1e	535	size = mySize;
cf471b1e	536
dc4788ec	537	timerReco.Stop();
	538
	539	// Set log level to "Warning" for on-line system monitoring
	540
	541	Logging( kHLTLogWarning, "HLT::TPCCATracker::DoEvent", "Tracks",
	542	"CATracker slice %d: output %d tracks; input %d clusters, patches %d..%d, rows %d..%d; reco time %d/%d us",
	543	slice, ntracks, nClusters, minPatch, maxPatch, row[0], row[1], (Int_t) (timer.RealTime()1.e6), (Int_t) (timerReco.RealTime()1.e6) );
	544
4c256004	545	return ret;
4c256004	546
cf471b1e	547	}
	548
	549