#include "AliCollisionGeometry.h"
#include "AliRun.h"
#include "AliMC.h"
+#include "AliGenCocktailEventHeader.h"
ClassImp(AliGenCocktail)
AliGenCocktail::AliGenCocktail()
- :AliGenerator()
+ :AliGenerator(),
+ fNGenerators(0),
+ fTotalRate(0.),
+ fRandom(kFALSE),
+ fUsePerEventRate(kFALSE),
+ fProb(0),
+ fEntries(0),
+ flnk1(0),
+ flnk2(0),
+ fHeader(0)
{
// Constructor
fName = "Cocktail";
fTitle= "Particle Generator using cocktail of generators";
- flnk1 = 0;
- flnk2 = 0;
- fNGenerators=0;
- fEntries = 0;
-
-}
-
-AliGenCocktail::AliGenCocktail(const AliGenCocktail & cocktail):
- AliGenerator(cocktail)
-{
-// Copy constructor
- cocktail.Copy(*this);
}
AliGenCocktail::~AliGenCocktail()
{
// Destructor
delete fEntries;
+ fEntries = 0;
+ // delete fHeader; // It is removed in AliRunLoader
+ fHeader = 0;
}
void AliGenCocktail::
// Add a generator to the list
// First check that list exists
if (!fEntries) fEntries = new TList();
-
+ fTotalRate += RateExp;
//
// Forward parameters to the new generator
if(TestBit(kPtRange) && !(Generator->TestBit(kPtRange)) && !(Generator->TestBit(kMomentumRange)))
Generator->SetPhiRange(fPhiMin*180/TMath::Pi(),fPhiMax*180/TMath::Pi());
if (!(Generator->TestBit(kThetaRange)))
Generator->SetThetaRange(fThetaMin*180/TMath::Pi(),fThetaMax*180/TMath::Pi());
- if (!(Generator->TestBit(kVertexRange)))
+ if (!(Generator->TestBit(kVertexRange))) {
Generator->SetOrigin(fOrigin[0], fOrigin[1], fOrigin[2]);
-
- Generator->SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
- Generator->SetVertexSmear(fVertexSmear);
- Generator->SetVertexSource(kContainer);
+ Generator->SetSigma(fOsigma[0], fOsigma[1], fOsigma[2]);
+ Generator->SetVertexSmear(fVertexSmear);
+ Generator->SetVertexSource(kContainer);
+ }
Generator->SetTrackingFlag(fTrackIt);
+ Generator->SetContainer(this);
+
+
//
// Add generator to list
char theName[256];
fEntries->Add(entry);
fNGenerators++;
- }
+ flnk1 = 0;
+ flnk2 = 0;
+ fRandom = kFALSE;
+ fHeader = 0;
+}
void AliGenCocktail::Init()
{
//
// Loop over generators and initialize
while((entry = (AliGenCocktailEntry*)next())) {
+ if (fStack) entry->Generator()->SetStack(fStack);
entry->Generator()->Init();
}
+
+ next.Reset();
+
+ if (fRandom) {
+ fProb.Set(fNGenerators);
+ next.Reset();
+ Float_t sum = 0.;
+ while((entry = (AliGenCocktailEntry*)next())) {
+ sum += entry->Rate();
+ }
+
+ next.Reset();
+ Int_t i = 0;
+ Float_t psum = 0.;
+ while((entry = (AliGenCocktailEntry*)next())) {
+ psum += entry->Rate() / sum;
+ fProb[i++] = psum;
+ }
+ }
+ next.Reset();
}
void AliGenCocktail::FinishRun()
AliGenCocktailEntry *entry = 0;
AliGenCocktailEntry *preventry = 0;
AliGenerator* gen = 0;
+ if (fHeader) delete fHeader;
+
+
+ fHeader = new AliGenCocktailEventHeader("Cocktail Header");
- TObjArray *partArray = gAlice->GetMCApp()->Particles();
+ const TObjArray *partArray = gAlice->GetMCApp()->Particles();
//
// Generate the vertex position used by all generators
//
if(fVertexSmear == kPerEvent) Vertex();
-
- //
- // Loop over generators and generate events
- Int_t igen=0;
-
- while((entry = (AliGenCocktailEntry*)next())) {
- igen++;
- if (igen ==1) {
- entry->SetFirst(0);
- } else {
- entry->SetFirst((partArray->GetEntriesFast())+1);
- }
+ TArrayF eventVertex;
+ eventVertex.Set(3);
+ for (Int_t j=0; j < 3; j++) eventVertex[j] = fVertex[j];
+
+ if (!fRandom) {
+ //
+ // Loop over generators and generate events
+ Int_t igen=0;
+ while((entry = (AliGenCocktailEntry*)next())) {
+ if (fUsePerEventRate && (gRandom->Rndm() > entry->Rate())) continue;
+
+ igen++;
+ if (igen ==1) {
+ entry->SetFirst(0);
+ } else {
+ entry->SetFirst((partArray->GetEntriesFast())+1);
+ }
//
// Handle case in which current generator needs collision geometry from previous generator
//
- gen = entry->Generator();
- if (gen->NeedsCollisionGeometry())
- {
- if (preventry && preventry->Generator()->ProvidesCollisionGeometry())
+ gen = entry->Generator();
+ if (gen->NeedsCollisionGeometry())
{
- gen->SetCollisionGeometry(preventry->Generator()->CollisionGeometry());
- } else {
- Fatal("Generate()", "No Collision Geometry Provided");
+ if (preventry && preventry->Generator()->ProvidesCollisionGeometry())
+ {
+ gen->SetCollisionGeometry(preventry->Generator()->CollisionGeometry());
+ } else {
+ Fatal("Generate()", "No Collision Geometry Provided");
+ }
}
+ entry->Generator()->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2));
+ entry->Generator()->Generate();
+ entry->SetLast(partArray->GetEntriesFast());
+ preventry = entry;
+ }
+ } else if (fRandom) {
+ //
+ // Select a generator randomly
+ //
+ Int_t i;
+ Float_t p0 = gRandom->Rndm();
+
+ for (i = 0; i < fNGenerators; i++) {
+ if (p0 < fProb[i]) break;
}
+
+ entry = (AliGenCocktailEntry*) fEntries->At(i);
+ entry->SetFirst(0);
+ gen = entry->Generator();
entry->Generator()->SetVertex(fVertex.At(0), fVertex.At(1), fVertex.At(2));
entry->Generator()->Generate();
entry->SetLast(partArray->GetEntriesFast());
- preventry = entry;
- }
+ }
+
next.Reset();
+
+// Event Vertex
+ fHeader->SetPrimaryVertex(eventVertex);
+ fHeader->CalcNProduced();
+ gAlice->SetGenEventHeader(fHeader);
+}
+
+void AliGenCocktail::SetVertexSmear(VertexSmear_t smear)
+{
+// Set vertex smearing and propagate it to the generators
+
+ AliGenerator::SetVertexSmear(smear);
+ TIter next(fEntries);
+ while (AliGenCocktailEntry* entry = (AliGenCocktailEntry*)next()) {
+ entry->Generator()->SetVertexSmear(smear);
+ }
}
AliGenCocktailEntry * AliGenCocktail::FirstGenerator()
}
}
-AliGenCocktail& AliGenCocktail::operator=(const AliGenCocktail& rhs)
+void AliGenCocktail::AddHeader(AliGenEventHeader* header)
{
-// Assignment operator
- rhs.Copy(*this);
- return (*this);
+// Add a header to the list
+ if (fHeader) fHeader->AddHeader(header);
}
-void AliGenCocktail::Copy(TObject &) const
-{
- Fatal("Copy","Not implemented!\n");
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff