-#include <AliESDVertex.h>
-#include <AliITSVertexer.h>
-#include <AliRunLoader.h>
-#include <AliITSLoader.h>
-#include <AliITSRecPoint.h>
-#include <AliITSclusterV2.h>
+#include "AliLog.h"
+#include "AliMultiplicity.h"
+#include "AliITSgeomTGeo.h"
+#include "AliITSVertexer.h"
+#include "AliITSLoader.h"
+#include "AliITSMultReconstructor.h"
+#include "AliITSRecPointContainer.h"
+
+const Float_t AliITSVertexer::fgkPipeRadius = 3.0;
ClassImp(AliITSVertexer)
//////////////////////////////////////////////////////////////////////
// Base class for primary vertex reconstruction //
// AliESDVertexer is a class for full 3D primary vertex finding //
-// derived classes: AliITSVertexerIons AliITSvertexerPPZ //
-// AliITSVertexerTracks //
+// derived classes: AliITSvertexer3D, AliITSVertexerZ. //
+// AliITSVertexerCosmics //
//////////////////////////////////////////////////////////////////////
+/* $Id$ */
+
//______________________________________________________________________
-AliITSVertexer::AliITSVertexer():AliVertexer() {
+AliITSVertexer::AliITSVertexer():AliVertexer(),
+fLadders(),
+fLadOnLay2(0),
+fComputeMultiplicity(kFALSE),
+fDetTypeRec(NULL),
+fMinTrackletsForPilup(0),
+fIsPileup(0),
+fNTrpuv(-2),
+fZpuv(-9999999.),
+fNoVertices(0),
+fVertArray(NULL),
+fFirstEvent(0),
+fLastEvent(-1)
+{
// Default Constructor
- SetUseV2Clusters(kTRUE);
+ SetLaddersOnLayer2();
+ SetMinTrackletsForPilup();
+ for(Int_t i=0; i<kNSPDMod;i++) fUseModule[i]=kTRUE;
}
-AliITSVertexer::AliITSVertexer(TString filename) {
- // Standard constructor
- AliRunLoader *rl = AliRunLoader::GetRunLoader();
- if(!rl){
- Fatal("AliITSVertexer","Run Loader not found");
+//______________________________________________________________________
+AliITSVertexer::~AliITSVertexer() {
+ // Destructor
+ if(fLadders) delete [] fLadders;
+ if (fNoVertices > 0){
+ delete []fVertArray;
+ fVertArray = NULL;
+ fNoVertices = 0;
}
- if(rl->LoadgAlice()){
- Fatal("AliITSVertexer","The AliRun object is not available - nothing done");
+}
+
+//______________________________________________________________________
+void AliITSVertexer::ResetVertex(){
+ // Resets vertex related data members
+ if(fNoVertices > 0){
+ if(fVertArray) delete []fVertArray;
+ fVertArray = NULL;
+ fNoVertices = 0;
}
- fCurrentVertex = 0;
- SetDebug();
- SetFirstEvent(0);
- SetLastEvent(0);
- rl->LoadHeader();
- AliITSLoader* itsLoader = (AliITSLoader*) rl->GetLoader("ITSLoader");
- if(!filename.Contains("default"))itsLoader->SetVerticesFileName(filename);
- if(!filename.Contains("null"))itsLoader->LoadVertices("recreate");
- itsLoader->LoadRecPoints();
- Int_t lst;
- if(rl->TreeE()){
- lst = static_cast<Int_t>(rl->TreeE()->GetEntries());
- SetLastEvent(lst-1);
+ fIsPileup=kFALSE;
+ fNTrpuv=-2;
+ fZpuv=-99999.;
+
+}
+//______________________________________________________________________
+void AliITSVertexer::FindMultiplicity(TTree *itsClusterTree){
+ // Invokes AliITSMultReconstructor to determine the
+ // charged multiplicity in the pixel layers
+ if(fMult){delete fMult; fMult = 0;}
+
+ Bool_t success=kTRUE;
+ Bool_t cosmics=kFALSE;
+ if(!fCurrentVertex)success=kFALSE;
+ if(fCurrentVertex && fCurrentVertex->GetNContributors()<1)success=kFALSE;
+ if(fCurrentVertex && strstr(fCurrentVertex->GetTitle(),"cosmics")) {
+ success=kFALSE;
+ cosmics=kTRUE;
+ }
+
+ // get the FastOr bit mask
+ TBits fastOrFiredMap = fDetTypeRec->GetFastOrFiredMap();
+ TBits firedChipMap = fDetTypeRec->GetFiredChipMap(itsClusterTree);
+
+ AliITSMultReconstructor multReco;
+
+ if(!success){
+ if(!cosmics) {
+ AliDebug(1,"Tracklets multiplicity not determined because the primary vertex was not found");
+ AliDebug(1,"Just counting the number of cluster-fired chips on the SPD layers");
+ }
+ if (!itsClusterTree) {
+ AliError(" Invalid ITS cluster tree !\n");
+ return;
+ }
+ multReco.LoadClusterFiredChips(itsClusterTree);
+ Short_t nfcL1 = multReco.GetNFiredChips(0);
+ Short_t nfcL2 = multReco.GetNFiredChips(1);
+ fMult = new AliMultiplicity(0,0,0,0,0,0,0,0,0,0,0,nfcL1,nfcL2,fastOrFiredMap);
+ fMult->SetFiredChipMap(firedChipMap);
+ AliITSRecPointContainer* rcont = AliITSRecPointContainer::Instance();
+ fMult->SetITSClusters(0,rcont->GetNClustersInLayer(1,itsClusterTree));
+ for(Int_t kk=2;kk<=6;kk++){
+ fMult->SetITSClusters(kk-1,rcont->GetNClustersInLayerFast(kk));
+ }
+ return;
+ }
+
+ if (!itsClusterTree) {
+ AliError(" Invalid ITS cluster tree !\n");
+ return;
+ }
+ Double_t vtx[3];
+ fCurrentVertex->GetXYZ(vtx);
+ Float_t vtxf[3];
+ for(Int_t i=0;i<3;i++)vtxf[i]=vtx[i];
+ multReco.SetHistOn(kFALSE);
+ multReco.Reconstruct(itsClusterTree,vtxf,vtxf);
+ Int_t notracks=multReco.GetNTracklets();
+ Float_t *tht = new Float_t [notracks];
+ Float_t *phi = new Float_t [notracks];
+ Float_t *dtht = new Float_t [notracks];
+ Float_t *dphi = new Float_t [notracks];
+ Int_t *labels = new Int_t[notracks];
+ Int_t *labelsL2 = new Int_t[notracks];
+ for(Int_t i=0;i<multReco.GetNTracklets();i++){
+ tht[i] = multReco.GetTracklet(i)[0];
+ phi[i] = multReco.GetTracklet(i)[1];
+ dtht[i] = multReco.GetTracklet(i)[3];
+ dphi[i] = multReco.GetTracklet(i)[2];
+ labels[i] = static_cast<Int_t>(multReco.GetTracklet(i)[4]);
+ labelsL2[i] = static_cast<Int_t>(multReco.GetTracklet(i)[5]);
+ }
+ Int_t nosingleclus=multReco.GetNSingleClusters();
+ Float_t *ths = new Float_t [nosingleclus];
+ Float_t *phs = new Float_t [nosingleclus];
+ Int_t *labelss = new Int_t [nosingleclus];
+ for(Int_t i=0;i<nosingleclus;i++){
+ ths[i] = multReco.GetCluster(i)[0];
+ phs[i] = multReco.GetCluster(i)[1];
+ labelss[i] = (Int_t)multReco.GetCluster(i)[2];
}
- SetUseV2Clusters(kTRUE);
+ Short_t nfcL1 = multReco.GetNFiredChips(0);
+ Short_t nfcL2 = multReco.GetNFiredChips(1);
+ fMult = new AliMultiplicity(notracks,tht,phi,dtht,dphi,labels,labelsL2,nosingleclus,ths,phs,labelss,nfcL1,nfcL2,fastOrFiredMap);
+ fMult->SetFiredChipMap(firedChipMap);
+ AliITSRecPointContainer* rcont = AliITSRecPointContainer::Instance();
+ fMult->SetITSClusters(0,rcont->GetNClustersInLayer(1,itsClusterTree));
+ for(Int_t kk=2;kk<=6;kk++){
+ fMult->SetITSClusters(kk-1,rcont->GetNClustersInLayerFast(kk));
+ }
+ delete [] tht;
+ delete [] phi;
+ delete [] dtht;
+ delete [] dphi;
+ delete [] ths;
+ delete [] phs;
+ delete [] labels;
+ delete [] labelsL2;
+ delete [] labelss;
+
+ return;
}
//______________________________________________________________________
-AliITSVertexer::AliITSVertexer(const AliITSVertexer &vtxr) : AliVertexer(vtxr) {
- // Copy constructor
- // Copies are not allowed. The method is protected to avoid misuse.
- Error("AliITSVertexer","Copy constructor not allowed\n");
+void AliITSVertexer::SetLaddersOnLayer2(Int_t ladwid){
+ // Calculates the array of ladders on layer 2 to be used with a
+ // given ladder on layer 1
+ fLadOnLay2=ladwid;
+ Int_t ladtot1=AliITSgeomTGeo::GetNLadders(1);
+ if(fLadders) delete [] fLadders;
+ fLadders=new UShort_t[ladtot1];
+
+
+ Double_t pos1[3],pos2[3];
+ Int_t mod1=AliITSgeomTGeo::GetModuleIndex(2,1,1);
+ AliITSgeomTGeo::GetTranslation(mod1,pos1); // position of the module in the MRS
+ Double_t phi0=TMath::ATan2(pos1[1],pos1[0]);
+ if(phi0<0) phi0+=2*TMath::Pi();
+ Int_t mod2=AliITSgeomTGeo::GetModuleIndex(2,2,1);
+ AliITSgeomTGeo::GetTranslation(mod2,pos2);
+ Double_t phi2=TMath::ATan2(pos2[1],pos2[0]);
+ if(phi2<0) phi2+=2*TMath::Pi();
+ Double_t deltaPhi= phi0-phi2; // phi width of a layer2 module
+
+ for(Int_t i= 0; i<ladtot1;i++){
+ Int_t modlad= AliITSgeomTGeo::GetModuleIndex(1,i+1,1);
+ Double_t posmod[3];
+ AliITSgeomTGeo::GetTranslation(modlad,posmod);
+ Double_t phimod=TMath::ATan2(posmod[1],posmod[0]);
+ if(phimod<0) phimod+=2*TMath::Pi();
+ Double_t phi1= phimod+deltaPhi*double(fLadOnLay2);
+ if(phi1<0) phi1+=2*TMath::Pi();
+ if(phi1>2*TMath::Pi()) phi1-=2*TMath::Pi();
+ Double_t philad1=phi0-phi1;
+ UShort_t lad1;
+ Double_t ladder1=(philad1)/(deltaPhi) +1.;
+ if(ladder1<1){ladder1=40+ladder1;}
+ lad1=int(ladder1+0.5);
+ fLadders[i]=lad1;
+ }
}
+#include "AliRunLoader.h"
+
//______________________________________________________________________
-AliITSVertexer& AliITSVertexer::operator=(const AliITSVertexer& /* vtxr */){
- // Assignment operator
- // Assignment is not allowed. The method is protected to avoid misuse.
- Error("= operator","Assignment operator not allowed\n");
- return *this;
-}
+void AliITSVertexer::Init(TString filename){
+ // Initialize the vertexer in case of
+ // analysis of an entire file
+ AliRunLoader *rl = AliRunLoader::Instance();
+ if(!rl){
+ AliFatal("Run Loader not found");
+ return;
+ }
+ if (fLastEvent < 0) SetLastEvent(rl->GetNumberOfEvents()-1);
+ AliITSLoader* itsloader = (AliITSLoader*) rl->GetLoader("ITSLoader");
+ if(!filename.Contains("default"))itsloader->SetVerticesFileName(filename);
+ if(!filename.Contains("null"))itsloader->LoadVertices("recreate");
+}
//______________________________________________________________________
void AliITSVertexer::WriteCurrentVertex(){
// Write the current AliVertex object to file fOutFile
- AliRunLoader *rl = AliRunLoader::GetRunLoader();
+ AliRunLoader *rl = AliRunLoader::Instance();
AliITSLoader* itsLoader = (AliITSLoader*) rl->GetLoader("ITSLoader");
fCurrentVertex->SetName("Vertex");
// const char * name = fCurrentVertex->GetName();
}
//______________________________________________________________________
-void AliITSVertexer::Clusters2RecPoints
-(const TClonesArray *clusters, Int_t idx, TClonesArray *points) {
- //------------------------------------------------------------
- // Conversion AliITSclusterV2 -> AliITSRecPoints for the ITS
- // module "idx" (entry in the tree with the clusters).
- // Simplified version, supposed to work with the pixels only !
- //------------------------------------------------------------
- const Int_t klastSPD1=79; //let's hope the number of the SPDs will not change
- const Int_t klastSPD2=239;//let's hope the number of the SPDs will not change
-
- Float_t yshift = 0; //see AliITSclustererV2.cxx about these shifts
- Float_t zshift[4] = {-10.708000, -3.536000, 3.536000, 10.708000}; //let's hope the positioning of the SPDs will not change
-
- if (idx<=klastSPD1) {
- yshift=0.248499; //let's hope the positioning of the SPDs will not change
- } else if (idx<=klastSPD2) {
- yshift=3.096207; //let's hope the positioning of the SPDs will not change
- } else {
- Fatal("Clusters2RecPoints","This is not an SPD module ! %d",idx);
+void AliITSVertexer::FindVertices(){
+ // computes the vertices of the events in the range FirstEvent - LastEvent
+
+ AliRunLoader *rl = AliRunLoader::Instance();
+ AliITSLoader* itsloader = (AliITSLoader*) rl->GetLoader("ITSLoader");
+ itsloader->LoadRecPoints("read");
+ for(Int_t i=fFirstEvent;i<=fLastEvent;i++){
+ rl->GetEvent(i);
+ TTree* cltree = itsloader->TreeR();
+ FindVertexForCurrentEvent(cltree);
+ if(fCurrentVertex){
+ WriteCurrentVertex();
+ }
+ else {
+ AliDebug(1,Form("Vertex not found for event %d",i));
+ }
}
-
- TClonesArray &pn=*points;
- Int_t ncl=clusters->GetEntriesFast();
- for (Int_t i=0; i<ncl; i++) {
- AliITSRecPoint p;
- AliITSclusterV2 *c = (AliITSclusterV2 *)clusters->UncheckedAt(i);
-
- Float_t x=c->GetY(); if (idx<=klastSPD1) x=-x;
- x+=yshift;
-
- Float_t z=c->GetZ();
- z=-z; z+=zshift[idx%4];
-
- p.SetX(x);
- p.SetZ(z);
- p.SetQ(c->GetQ());
- p.SetSigmaX2(c->GetSigmaY2());
- p.SetSigmaZ2(c->GetSigmaZ2());
- p.SetLabel(0,c->GetLabel(0));
- p.SetLabel(1,c->GetLabel(1));
- p.SetLabel(2,c->GetLabel(2));
-
- new (pn[i]) AliITSRecPoint(p);
- }
-
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff