PndGemSmearingTask Class Reference

#include <PndGemSmearingTask.h>

Inheritance diagram for PndGemSmearingTask:

Public Member Functions
	PndGemSmearingTask ()
	PndGemSmearingTask (Double_t sx, Double_t sy, Double_t sz)
virtual	~PndGemSmearingTask ()
virtual void	SetParContainers ()
virtual InitStatus	Init ()
virtual void	Exec (Option_t *opt)

Private Member Functions
void	InitTransMat ()
void	smear (TVector3 &pos)
void	smearLocal (TVector3 &pos)
void	CalcGFDetPlane (TVector3 &o, TVector3 &u, TVector3 &v)
void	Register ()
void	Reset ()
void	ProduceHits ()
	ClassDef (PndGemSmearingTask, 1)

Private Attributes
PndGemDigiPar *	fDigiPar
TString	fBranchName
TClonesArray *	fPointArray
TClonesArray *	fMctruthArray
TClonesArray *	fHitOutputArray
Double_t	fSigmaX
Double_t	fSigmaY
Double_t	fSigmaZ
PndGemMCPoint *	fCurrentPndGemMCPoint
TGeoHMatrix *	fCurrentTransMat
TMatrixT< Double_t >	fHitCovMatrix

Detailed Description

Definition at line 33 of file PndGemSmearingTask.h.

Constructor & Destructor Documentation

PndGemSmearingTask::PndGemSmearingTask

(

)

Default constructor

Definition at line 29 of file PndGemSmearingTask.cxx.

References fBranchName, fDigiPar, fSigmaX, fSigmaY, and fSigmaZ.

                                       :
  FairTask("Ideal reconstruction task for PANDA PndGem"),
  fHitCovMatrix(3,3)
{
  fDigiPar     = NULL;
  fSigmaX=0.;
  fSigmaY=0.;
  fSigmaZ=0.;
        fBranchName     = "GEMPoint";
}

PndGemSmearingTask::PndGemSmearingTask	(	Double_t	sx,
		Double_t	sy,
		Double_t	sz
	)

Definition at line 42 of file PndGemSmearingTask.cxx.

References fBranchName, fDigiPar, fSigmaX, fSigmaY, and fSigmaZ.

                                                                            :
  FairTask("Ideal reconstruction task for PANDA PndGem"),
  fHitCovMatrix(3,3)
{
  fDigiPar     = NULL;
  fSigmaX=sx;
  fSigmaY=sy;
  fSigmaZ=sz;
  fBranchName   = "GEMPoint";
}

PndGemSmearingTask::~PndGemSmearingTask ( )

virtual

Destructor

Definition at line 56 of file PndGemSmearingTask.cxx.

References fDigiPar.

{
  if ( fDigiPar)   delete fDigiPar;
}

Member Function Documentation

void PndGemSmearingTask::CalcGFDetPlane ( TVector3 &  o, TVector3 &  u, TVector3 &  v  )

private

Definition at line 219 of file PndGemSmearingTask.cxx.

References Double_t, fCurrentPndGemMCPoint, fCurrentTransMat, fVerbose, PndGemMCPoint::GetSensorId(), and v.

Referenced by Exec().

{
  Double_t O[3], U[3], V[3], o[3], u[3], v[3];
  O[0]=oVect.x();  O[1]=oVect.y();  O[2]=oVect.z();
  U[0]=uVect.x();  U[1]=uVect.y();  U[2]=uVect.z();
  V[0]=vVect.x();  V[1]=vVect.y();  V[2]=vVect.z();

  if (fVerbose > 1) {
    std::cout<<"PndGemSmearingTask::CalcGFDetPlane from Detector sensorId "
             <<fCurrentPndGemMCPoint->GetSensorId()<<std::endl;
  }
  //make transformation
  fCurrentTransMat->LocalToMaster(O,o);
  fCurrentTransMat->LocalToMaster(U,u);
  fCurrentTransMat->LocalToMaster(V,v);
  oVect.SetXYZ(o[0],o[1],o[2]);
  uVect.SetXYZ(u[0],u[1],u[2]);
  vVect.SetXYZ(v[0],v[1],v[2]);
}

PndGemSmearingTask::ClassDef ( PndGemSmearingTask  , 1    )

private

void PndGemSmearingTask::Exec ( Option_t *  opt )

virtual

Virtual method Exec

Definition at line 107 of file PndGemSmearingTask.cxx.

References CalcGFDetPlane(), fCurrentPndGemMCPoint, fHitOutputArray, fPointArray, fSigmaX, fSigmaY, fSigmaZ, fVerbose, InitTransMat(), pos, smearLocal(), and v.

{
        // Fills PndGemHits with the MC Truth
  // TODO filling of RecoHits, together with the sensor plane


        if ( ! fHitOutputArray ) Fatal("Exec", "No fHitOutputArray");
        fHitOutputArray->Clear();

  std::map<Int_t, PndGemHit*> clusterMap;

  Int_t nPndGemHits=fPointArray->GetEntriesFast();
  for(Int_t iMvdPoint=0;iMvdPoint<nPndGemHits;++iMvdPoint)
  {
    fCurrentPndGemMCPoint=(PndGemMCPoint*)fPointArray->At(iMvdPoint);
    Int_t trackid=fCurrentPndGemMCPoint->GetTrackID();
    Int_t size = fHitOutputArray->GetEntriesFast();
    InitTransMat();

    // cut on secondaries (deltas) etc
    if(trackid<0)continue;

    //set the plane definition inside the local frame
    //sensor origin in the middle, u^ and v^ are xy plane
    TVector3 o(0.,0.,0.),u(1.,0.,0.),v(0.,1.,0.);
    CalcGFDetPlane(o,u,v);
    TVector3 pos;
    fCurrentPndGemMCPoint->Position(pos);
    smearLocal(pos);
    TVector3 dposLocal(fSigmaX,fSigmaY,fSigmaZ);

    // TODO here we shall distinguish between strip and pixel sensors
    // TODO How to handle the covariance matrix? OR do we really use local point
    // errors. this would avoid two conversations, myabe overload the FairHit
    // functions for the global error points.

    // Now the 3D Info is smared inside the FairHit part of PndGemHit
    new ((*fHitOutputArray)[size]) PndGemHit(fCurrentPndGemMCPoint->GetDetectorID(),
                                             pos,dposLocal,iMvdPoint,fCurrentPndGemMCPoint->GetEnergyLoss(),1);

  }//end for PndMvdiMvdPoint

  if (fVerbose > 0) {
    std::cout<<fHitOutputArray->GetEntriesFast() <<" Hits created out of "
             <<fPointArray->GetEntriesFast() <<" Points"<<std::endl;
  }

}

InitStatus PndGemSmearingTask::Init ( )

virtual

Definition at line 62 of file PndGemSmearingTask.cxx.

References fBranchName, fHitOutputArray, fMctruthArray, fPointArray, and gGeoManager.

Referenced by runGemSmearing().

{
  // Get RootManager
  FairRootManager* ioman = FairRootManager::Instance();
  if ( ! ioman ) {
    std::cout << "-E- PndGemSmearingTask::Init: "
                                                        << "RootManager not instantiated!" << std::endl;
    return kFATAL;  }

  // Get input array
  fPointArray = (TClonesArray*) ioman->GetObject(fBranchName);
  if ( ! fPointArray ) {
    std::cout << "-W- PndGemSmearingTask::Init: "<< "No "<<fBranchName
                                                        <<" array!" << std::endl;
    return kERROR;  }

  // Get MCTruth collection
  fMctruthArray=(TClonesArray*) ioman->GetObject("MCTrack");
  if(fMctruthArray==0)  {
    std::cout << "-W- PndGemSmearingTask::Init: No McTruth array!" << std::endl;
    return kERROR;  }

  // Create and register output array
  fHitOutputArray = new TClonesArray("PndGemHit");
  ioman->Register("GEMHit", "PndMvd ideal Hits",
                                                                        fHitOutputArray, kTRUE);

  std::cout << "-I- gGeoManager = "<<gGeoManager << std::endl;


  return kSUCCESS;
}

void PndGemSmearingTask::InitTransMat ( )

private

smearing and geometry access

Definition at line 156 of file PndGemSmearingTask.cxx.

References fCurrentPndGemMCPoint, fCurrentTransMat, fDigiPar, fVerbose, PndGemDigiPar::GetNodeName(), PndGemMCPoint::GetSensorId(), gGeoManager, and TString.

Referenced by Exec().

{
//     std::cout<<"InitTransMat() with "<<fCurrentPndGemMCPoint->GetDetName()<<std::endl;
  Int_t sensorId = fCurrentPndGemMCPoint->GetSensorId();
  TString nodeName = fDigiPar->GetNodeName(sensorId);
  gGeoManager->cd(nodeName.Data());
  fCurrentTransMat = gGeoManager->GetCurrentMatrix();
  if (fVerbose > 1) {
    fCurrentTransMat->Print("");
  }
}

void PndGemSmearingTask::ProduceHits ( )

private

void PndGemSmearingTask::Register ( )

private

void PndGemSmearingTask::Reset ( )

private

void PndGemSmearingTask::SetParContainers ( )

virtual

Virtual method Init

Definition at line 95 of file PndGemSmearingTask.cxx.

References fDigiPar, and rtdb.

{
  // Get Base Container
  FairRun* ana = FairRun::Instance();
  FairRuntimeDb* rtdb=ana->GetRuntimeDb();

  // Get GEM digitisation parameter container
  fDigiPar = (PndGemDigiPar*)(rtdb->getContainer("PndGemDetectors"));
}

void PndGemSmearingTask::smear ( TVector3 &  pos )

private

smear a 3d vector

Definition at line 169 of file PndGemSmearingTask.cxx.

References Double_t, fSigmaX, fSigmaY, fSigmaZ, fVerbose, x, y, and z.

Referenced by smearLocal().

{

  Double_t sigx=gRandom->Gaus(0,fSigmaX);
        Double_t sigy=gRandom->Gaus(0,fSigmaY);
        Double_t sigz=gRandom->Gaus(0,fSigmaZ);

  Double_t x = pos.x() + sigx;
  Double_t y = pos.y() + sigy;
  Double_t z = pos.z() + sigz;

  if (fVerbose > 1) {
    std::cout<<"PndGemSmearingTask::smear Point (x,y,z)=("
             <<pos.x()<<","<<pos.z()<<","<<pos.z()<<") by ("
             <<fSigmaX<<","<<fSigmaY<<","<<fSigmaZ<<") to ";
  }
        pos.SetXYZ(x,y,z);
  if (fVerbose > 1) {
    std::cout<<"("<<pos.x()<<","<<pos.y()<<","<<pos.z()<<")"<<std::endl;
  }
        return;
}

void PndGemSmearingTask::smearLocal ( TVector3 &  pos )

private

smear a 3d vector in the local sensor plane

Definition at line 194 of file PndGemSmearingTask.cxx.

References Double_t, fCurrentTransMat, fVerbose, and smear().

Referenced by Exec().

{
  if (fVerbose > 1) {
    std::cout<<"PndGemSmearingTask::smearLocal"<<std::endl;
  }
  Double_t posLab[3], posSens[3];

  posLab[0]=pos.x();  posLab[1]=pos.y();  posLab[2]=pos.z();
  fCurrentTransMat->MasterToLocal(posLab,posSens);

  pos.SetXYZ(posSens[0],posSens[1],posSens[2]);

  smear(pos); // apply a gaussian

  posSens[0]=pos.x();  posSens[1]=pos.y();  posSens[2]=pos.z();
  fCurrentTransMat->LocalToMaster(posSens,posLab);
  pos.SetXYZ(posLab[0],posLab[1],posLab[2]);


  return;
}

Member Data Documentation

TString PndGemSmearingTask::fBranchName

private

Definition at line 60 of file PndGemSmearingTask.h.

Referenced by Init(), and PndGemSmearingTask().

PndGemMCPoint* PndGemSmearingTask::fCurrentPndGemMCPoint

private

Definition at line 72 of file PndGemSmearingTask.h.

Referenced by CalcGFDetPlane(), Exec(), and InitTransMat().

TGeoHMatrix* PndGemSmearingTask::fCurrentTransMat

private

Definition at line 73 of file PndGemSmearingTask.h.

Referenced by CalcGFDetPlane(), InitTransMat(), and smearLocal().

PndGemDigiPar* PndGemSmearingTask::fDigiPar

private

Definition at line 58 of file PndGemSmearingTask.h.

Referenced by InitTransMat(), PndGemSmearingTask(), SetParContainers(), and ~PndGemSmearingTask().

TMatrixT<Double_t> PndGemSmearingTask::fHitCovMatrix

private

Definition at line 74 of file PndGemSmearingTask.h.

TClonesArray* PndGemSmearingTask::fHitOutputArray

private

Output array of Hits

Definition at line 67 of file PndGemSmearingTask.h.

Referenced by Exec(), and Init().

TClonesArray* PndGemSmearingTask::fMctruthArray

private

Definition at line 64 of file PndGemSmearingTask.h.

Referenced by Init().

TClonesArray* PndGemSmearingTask::fPointArray

private

Input array of Points

Definition at line 63 of file PndGemSmearingTask.h.

Referenced by Exec(), and Init().

Double_t PndGemSmearingTask::fSigmaX

private

Properties

Definition at line 69 of file PndGemSmearingTask.h.

Referenced by Exec(), PndGemSmearingTask(), and smear().

Double_t PndGemSmearingTask::fSigmaY

private

Definition at line 70 of file PndGemSmearingTask.h.

Referenced by Exec(), PndGemSmearingTask(), and smear().

Double_t PndGemSmearingTask::fSigmaZ

private

Definition at line 71 of file PndGemSmearingTask.h.

Referenced by Exec(), PndGemSmearingTask(), and smear().

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

• PndGemSmearingTask.h
• PndGemSmearingTask.cxx