X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=PHOS%2FAliPHOSRecParticle.cxx;h=78224515d148b1011588586dd441e979dab4414c;hb=7e6ee5e39d1f413890d7227279bc5da9fda26849;hp=0d2d7d5922863fb3937621c6306e0a320a8961a7;hpb=17323043f584137499bf2a6e2f2e2da17448b152;p=u%2Fmrichter%2FAliRoot.git

diff --git a/PHOS/AliPHOSRecParticle.cxx b/PHOS/AliPHOSRecParticle.cxx
index 0d2d7d59228..78224515d14 100644
--- a/PHOS/AliPHOSRecParticle.cxx
+++ b/PHOS/AliPHOSRecParticle.cxx
@@ -32,12 +32,13 @@
 #include "AliPHOSRecParticle.h"
 #include "AliPHOSGetter.h" 
 #include "AliPHOSGeometry.h" 
+#include "AliLog.h"
 
 //____________________________________________________________________________
   AliPHOSRecParticle::AliPHOSRecParticle(): fPHOSTrackSegment(0)  ,  fDebug( kFALSE )
 {
   // ctor
-  const Int_t nSPECIES = AliESDtrack::kSPECIESN;
+  const Int_t nSPECIES = AliPID::kSPECIESN;
   for(Int_t i = 0; i<nSPECIES ; i++)
     fPID[i]=0.;
 }
@@ -73,7 +74,7 @@
   fPolarTheta  = rp.fPolarTheta;
   fPolarPhi    = rp.fPolarPhi;
   fParticlePDG = rp.fParticlePDG; 
-  const Int_t nSPECIES = AliESDtrack::kSPECIESN;
+  const Int_t nSPECIES = AliPID::kSPECIESN;
   for(Int_t i = 0; i<nSPECIES ; i++)
     fPID[i]=rp.fPID[i];
 }
@@ -139,6 +140,107 @@ const TParticle * AliPHOSRecParticle::GetPrimary() const
     return 0 ;
 } 
   
+//____________________________________________________________________________
+Int_t AliPHOSRecParticle::GetPrimaryIndex() const  
+{
+  // Get the primary track index in TreeK which deposits the most energy
+  // in Digits which forms EmcRecPoint, which produces TrackSegment,
+  // which the RecParticle is created from
+
+
+  AliPHOSGetter * gime = AliPHOSGetter::Instance() ; 
+  if (!gime) 
+    AliError(Form("Getter not yet instantiated")) ; 
+  //PH  gime->Event(gime->EventNumber(), "DRTX") ; 
+  gime->Event(gime->EventNumber(), "DRT") ; 
+  
+  // Get TrackSegment corresponding to this RecParticle
+  AliPHOSTrackSegment *ts          = gime->TrackSegment(fPHOSTrackSegment);
+
+  // Get EmcRecPoint corresponding to this TrackSegment
+  Int_t emcRecPointIndex = ts->GetEmcIndex();
+
+  AliPHOSEmcRecPoint  *emcRecPoint = gime->EmcRecPoint(emcRecPointIndex);
+
+  // Get the list of digits forming this EmcRecParticle
+  Int_t  nDigits   = emcRecPoint->GetDigitsMultiplicity();
+  Int_t *digitList = emcRecPoint->GetDigitsList();
+
+  // Find the digit with maximum amplitude
+  AliPHOSDigit *digit = 0;
+  Int_t maxAmp = 0;
+  Int_t bestDigitIndex = -1;
+  for (Int_t iDigit=0; iDigit<nDigits; iDigit++) {
+    digit = gime->Digit(digitList[iDigit]);
+    if (digit->GetAmp() > maxAmp) {
+      maxAmp = digit->GetAmp();
+      bestDigitIndex = iDigit;
+    }
+  }
+  digit = gime->Digit(digitList[bestDigitIndex]);
+  
+  // Get the list of primary tracks producing this digit
+  // and find which track has more track energy.
+  //Int_t nPrimary = digit->GetNprimary();
+  //TParticle *track = 0;
+  //Double_t energyEM     = 0;
+  //Double_t energyHadron = 0;
+  //Int_t    trackEM      = -1;
+  //Int_t    trackHadron  = -1;
+  //for (Int_t iPrim=0; iPrim<nPrimary; iPrim++) {
+  //  Int_t iPrimary = digit->GetPrimary(iPrim+1);
+  //  if (iPrimary == -1 || TMath::Abs(iPrimary)>10000000)
+  //    continue ;  //PH 10000000 is the shift of the track 
+  //                //PH indexes in the underlying event
+  //  track = gime->Primary(iPrimary);
+  //  Int_t pdgCode   = track->GetPdgCode();
+  //  Double_t energy = track->Energy();
+  //  if (pdgCode==22 || TMath::Abs(pdgCode)==11) {
+  //    if (energy > energyEM) {
+  //	energyEM = energy;
+  //	trackEM = iPrimary;
+  //      }
+  //   }
+  //  else {
+  //     if (energy > energyHadron) {
+  //	energyHadron = energy;
+  //	trackHadron = iPrimary;
+	//    }
+  //  }
+  //}
+  // Preferences are given to electromagnetic tracks
+  //if (trackEM     != -1) return trackEM;     // track is gamma or e+-
+  //if (trackHadron != -1) return trackHadron; // track is hadron
+  //return -12345;                             // no track found :(
+
+
+  // Get the list of hits producing this digit,
+  // find which hit has deposited more energy 
+  // and find the primary track.
+
+  AliPHOSHit *hit = 0;
+  TClonesArray *hits = gime->Hits();
+  Double_t maxedep  =  0;
+  Int_t    maxtrack = -1;
+  Int_t    nHits    = hits ->GetEntries();
+  Int_t    id       = digit->GetId();
+
+  for (Int_t iHit=0; iHit<nHits; iHit++) {
+    hit = gime->Hit(iHit);
+    if(hit->GetId() == id){
+      Double_t edep  = hit->GetEnergy();
+      Int_t    track = hit->GetPrimary();
+      if(edep > maxedep){
+	maxedep  = edep;
+	maxtrack = track;
+      }
+    }
+  }
+
+  if (maxtrack != -1) return maxtrack; // track is hadron
+  return -12345;                       // no track found :(
+}
+
 //____________________________________________________________________________
 const TParticle * AliPHOSRecParticle::GetPrimary(Int_t index) const  
 {
@@ -161,7 +263,7 @@ const TParticle * AliPHOSRecParticle::GetPrimary(Int_t index) const
 }
 
 //____________________________________________________________________________
-void AliPHOSRecParticle::SetPID(Int_t type, Double_t weight)
+void AliPHOSRecParticle::SetPID(Int_t type, Float_t weight)
 {
   // Set the probability densities that this reconstructed particle
   // has a type of i: