Merge branch 'master' of https://git.cern.ch/reps/AliRoot

[u/mrichter/AliRoot.git] / EVGEN / AliGenCocktail.cxx

diff --git a/EVGEN/AliGenCocktail.cxx b/EVGEN/AliGenCocktail.cxx
index 7524d942d825c6053e329057a1505018ed10b595..32fd1bb97f636482bc2b369e235853033abd2926 100644 (file)
--- a/EVGEN/AliGenCocktail.cxx
+++ b/EVGEN/AliGenCocktail.cxx
@@ -41,7 +41,7 @@ AliGenCocktail::AliGenCocktail()
     :AliGenerator(), 
      fNGenerators(0),
      fTotalRate(0.),
-     fRandom(kFALSE),
+     fSRandom(kFALSE),
      fUsePerEventRate(kFALSE),
      fProb(0),
      fEntries(0),
@@ -64,7 +64,7 @@ AliGenCocktail::~AliGenCocktail()
 }
 
 void AliGenCocktail::
-AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormula* formula)
+AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormula* formula, Int_t ntimes)
 {
 //
 // Add a generator to the list 
@@ -78,11 +78,11 @@ AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormul
     if(TestBit(kMomentumRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
        Generator->SetMomentumRange(fPMin,fPMax);
     
-    if (!(Generator->TestBit(kYRange)))    
+    if (TestBit(kYRange) && !(Generator->TestBit(kYRange)))
        Generator->SetYRange(fYMin,fYMax);
-    if (!(Generator->TestBit(kPhiRange)))   
+    if (TestBit(kPhiRange) && !(Generator->TestBit(kPhiRange)))
        Generator->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
-    if (!(Generator->TestBit(kThetaRange))) 
+    if (TestBit(kThetaRange) && !(Generator->TestBit(kThetaRange)) && !(Generator->TestBit(kEtaRange)))
        Generator->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
     if (!(Generator->TestBit(kVertexRange))) {
        Generator->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
@@ -102,12 +102,13 @@ AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormul
 
     AliGenCocktailEntry *entry = 
        new AliGenCocktailEntry(Generator, Name, RateExp);
-    if (formula) entry->SetFormula(formula);    
+    if (formula) entry->SetFormula(formula);  
+    entry->SetNTimes(ntimes);
      fEntries->Add(entry);
      fNGenerators++;
      flnk1 = 0;
      flnk2 = 0;
-     fRandom  = kFALSE;
+     fSRandom  = kFALSE;
      fHeader  = 0;
 }
 
@@ -125,7 +126,7 @@ AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormul
 
     next.Reset();
 
-    if (fRandom) {
+    if (fSRandom) {
        fProb.Set(fNGenerators);
        next.Reset();
        Float_t sum = 0.;
@@ -181,12 +182,12 @@ AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormul
     eventVertex.Set(3);
     for (Int_t j=0; j < 3; j++) eventVertex[j] = fVertex[j];
 
-    if (!fRandom) {
+    if (!fSRandom) {
        //
        // Loop over generators and generate events
        Int_t igen   = 0;
        while((entry = (AliGenCocktailEntry*)next())) {
-          Int_t ntimes = 1;
+          Int_t ntimes = entry->NTimes();
          if (fUsePerEventRate && (gRandom->Rndm() > entry->Rate())) continue;
          
          igen++;
@@ -211,6 +212,7 @@ AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormul
            }
          //
          //      Number of signals is calculated from Collision Geometry
+         //      and entry with given centrality bin is selected
          //
          if (entry->Formula() != 0)
            {
@@ -221,18 +223,22 @@ AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormul
              AliCollisionGeometry* coll = (collentry->Generator())->CollisionGeometry();
              Float_t b  = coll->ImpactParameter();
              Int_t nsig = Int_t(entry->Formula()->Eval(b));
-             if (nsig < 1) nsig = 1;
-             AliInfo(Form("Signal Events %13.3f %5d %5d\n", b, coll->HardScatters(), nsig));
-             ntimes = nsig;
+             Int_t bin = entry->Bin() - 100;
+             if (bin > 0) {
+               if (bin != nsig) continue;
+             } else {
+               if (nsig < 1) nsig = 1;
+               AliInfo(Form("Signal Events %13.3f %5d %5d\n", b, coll->HardScatters(), nsig));
+               ntimes = nsig;
+             }
            }
+         gen->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2), fTime);
          
-         entry->Generator()->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2));
-         
-         for (Int_t i = 0; i < ntimes; i++) entry->Generator()->Generate();
+         gen->GenerateN(ntimes);
          entry->SetLast(partArray->GetEntriesFast());
          preventry = entry;
        }
-    } else if (fRandom) {
+    } else if (fSRandom) {
        //
        // Select a generator randomly
        //
@@ -246,17 +252,22 @@ AddGenerator(AliGenerator *Generator, const char* Name, Float_t RateExp, TFormul
        entry = (AliGenCocktailEntry*) fEntries->At(i);
        entry->SetFirst(0);
        gen = entry->Generator();
-       gen->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2));
+       gen->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2), fTime);
        gen->Generate();
        entry->SetLast(partArray->GetEntriesFast());
     } 
     
     next.Reset();
 
-// Event Vertex
+    // Event Vertex
     fHeader->SetPrimaryVertex(eventVertex);
     fHeader->CalcNProduced();
-    gAlice->SetGenEventHeader(fHeader); 
+    if (fContainer) {
+      fHeader->SetName(fName);
+      fContainer->AddHeader(fHeader);
+    } else {
+      gAlice->SetGenEventHeader(fHeader);      
+    }
 }
 
 void AliGenCocktail::SetVertexSmear(VertexSmear_t smear)