]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - ITS/AliITSFindClustersV2.C
Add CRT and streamline loadlibs
[u/mrichter/AliRoot.git] / ITS / AliITSFindClustersV2.C
index 0e06e7044ddf8f8c71f9a6d74752bd4c4f729695..385932678ade7a88f6c78f5c0e6e82a835867f61 100644 (file)
 #ifndef __CINT__
+  #include <iostream.h>
+
   #include "AliRun.h"
   #include "AliITS.h"
   #include "AliITSgeom.h"
   #include "AliITSRecPoint.h"
   #include "AliITSclusterV2.h"
-  #include "AliITSsimulationFastPoints.h"
 
   #include "TFile.h"
   #include "TTree.h"
   #include "TParticle.h"
 #endif
 
-Int_t AliITSFindClustersV2() {
+Int_t AliITSFindClustersV2(Char_t SlowOrFast='f') {
 /****************************************************************
- *  Just something to start with                                *
+ *  This macro converts AliITSRecPoint(s) to AliITSclusterV2(s) *
  ****************************************************************/
-   cerr<<"Looking for clusters...\n";
+   cerr<<"AliITSRecPoint(s) -> AliITSclusterV2(s)...\n";
 
    if (gAlice) {delete gAlice; gAlice=0;}
 
-   TFile *in=TFile::Open("galice.root","update");
-   if (!in->IsOpen()) {
-      cerr<<"Can't open galice.root !\n"; 
-      return 1;
-   }
-   
-   if (!(gAlice=(AliRun*)in->Get("gAlice"))) {
-      cerr<<"Can't find gAlice !\n";
-      return 2;
-   }
-
-   Int_t ev=0;
-   gAlice->GetEvent(ev);
-
-   AliITS *ITS  = (AliITS*)gAlice->GetModule("ITS");
-   if (!ITS) {
-      cerr<<"Can't find the ITS !\n";
-      return 3;
-   }
-
-   gAlice->MakeTree("R"); ITS->MakeBranch("R",0);
-//////////////// Taken from ITSHitsToFastPoints.C ///////////////////////
-   AliITSsimulationFastPoints *sim = new AliITSsimulationFastPoints();
-   for (Int_t i=0;i<3;i++) { ITS->SetSimulationModel(i,sim); }
-
-   Int_t nsignal=25;
-   Int_t size=-1;
-   Int_t bgr_ev=Int_t(ev/nsignal);
-   ITS->HitsToFastRecPoints(ev,bgr_ev,size," ","All"," ");
-//////////////////////////////////////////////////////////////////////////
-   delete gAlice; gAlice=0;
-   in->Close();
-
-///////////////// Conversion AliITSRecPoint -> AliITSclusterV2 //////////////
-   /*TFile */in=TFile::Open("galice.root");
-
-   if (gAlice) {delete gAlice; gAlice=0;}
+   TFile *in=TFile::Open("galice.root");
+   if (!in->IsOpen()) { cerr<<"Can't open galice.root !\n"; return 1; }
 
    if (!(gAlice=(AliRun*)in->Get("gAlice"))) {
       cerr<<"Can't find gAlice !\n";
-      return 4;
+      return 2;
    }
-
    gAlice->GetEvent(0);
 
-   /*AliITS */ITS  = (AliITS*)gAlice->GetModule("ITS");
-   if (!ITS) {
-      cerr<<"Can't find the ITS !\n";
-      return 5;
-   }
+   AliITS *ITS  = (AliITS*)gAlice->GetModule("ITS");
+   if (!ITS) { cerr<<"Can't find the ITS !\n"; return 3; }
    AliITSgeom *geom=ITS->GetITSgeom();
  
    TFile *out=TFile::Open("AliITSclustersV2.root","new");
    if (!out->IsOpen()) {
       cerr<<"Delete old AliITSclustersV2.root !\n"; 
-      return 6;
+      return 4;
    }
    geom->Write();
 
    TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
-   TTree *cTree=new TTree("cTree","ITS clusters");
+   TTree *cTree=new TTree("TreeC_ITS_0","ITS clusters");
    cTree->Branch("Clusters",&clusters);
 
    TTree *pTree=gAlice->TreeR();
-   if (!pTree) { 
-      cerr<<"Can't get TreeR !\n";
-      return 7;
+   if (!pTree) { cerr<<"Can't get TreeR !\n"; return 5; }
+   TBranch *branch = 0;
+   if (SlowOrFast=='f') {
+     branch = pTree->GetBranch("ITSRecPointsF");
    }
-   TBranch *branch=pTree->GetBranch("ITSRecPoints");
-   if (!branch) { 
-      cerr<<"Can't get ITSRecPoints branch !\n";
-      return 8;
+   else {
+     branch = pTree->GetBranch("ITSRecPoints");
    }
+   if (!branch) { cerr<<"Can't get ITSRecPoints branch !\n"; return 6; }
    TClonesArray *points=new TClonesArray("AliITSRecPoint",10000);
    branch->SetAddress(&points);
 
    TClonesArray &cl=*clusters;
    Int_t nclusters=0;
-   Int_t nentr=(Int_t)pTree->GetEntries();
+   Int_t nentr=(Int_t)branch->GetEntries();
 
    cerr<<"Number of entries: "<<nentr<<endl;
 
+   Float_t lp[5]; Int_t lab[6]; //Why can't it be inside a loop ?
+
    for (Int_t i=0; i<nentr; i++) {
-       if (!pTree->GetEvent(i)) {cTree->Fill(); continue;}
+       points->Clear();
+       branch->GetEvent(i);
+       Int_t ncl=points->GetEntriesFast(); if (ncl==0){cTree->Fill();continue;}
        Int_t lay,lad,det; geom->GetModuleId(i,lay,lad,det);
        Float_t x,y,zshift; geom->GetTrans(lay,lad,det,x,y,zshift); 
        Double_t rot[9];    geom->GetRotMatrix(lay,lad,det,rot);
        Double_t yshift = x*rot[0] + y*rot[1];
        Int_t ndet=(lad-1)*geom->GetNdetectors(lay) + (det-1);
-       Int_t ncl=points->GetEntriesFast();
        nclusters+=ncl;
+
+       Float_t kmip=1; // ADC->mip normalization factor for the SDD and SSD 
+       if(lay==4 || lay==3){kmip=280.;};
+       if(lay==6 || lay==5){kmip=38.;};
+
        for (Int_t j=0; j<ncl; j++) {
           AliITSRecPoint *p=(AliITSRecPoint*)points->UncheckedAt(j);
-          Float_t lp[5];
+          //Float_t lp[5];
           lp[0]=-p->GetX()-yshift; if (lay==1) lp[0]=-lp[0];
           lp[1]=p->GetZ()+zshift;
           lp[2]=p->GetSigmaX2();
           lp[3]=p->GetSigmaZ2();
-          lp[4]=p->GetQ();
-          Int_t lab[6]; 
+          lp[4]=p->GetQ(); lp[4]/=kmip;
+          //Int_t lab[6]; 
           lab[0]=p->GetLabel(0);lab[1]=p->GetLabel(1);lab[2]=p->GetLabel(2);
           lab[3]=ndet;
 
           Int_t label=lab[0];
-          TParticle *part=(TParticle*)gAlice->Particle(label);
-          label=-3;
-          while (part->P() < 0.005) {
-             Int_t m=part->GetFirstMother();
-             if (m<0) {cerr<<"Primary momentum: "<<part->P()<<endl; break;}
-             label=m;
-             part=(TParticle*)gAlice->Particle(label);
-          }
-          if      (lab[1]<0) lab[1]=label;
-          else if (lab[2]<0) lab[2]=label;
-          else cerr<<"No empty labels !\n";
+          if (label>=0) {
+             TParticle *part=(TParticle*)gAlice->Particle(label);
+             label=-3;
+             while (part->P() < 0.005) {
+                Int_t m=part->GetFirstMother();
+                if (m<0) {cerr<<"Primary momentum: "<<part->P()<<endl; break;}
+                label=m;
+                part=(TParticle*)gAlice->Particle(label);
+             }
+             if      (lab[1]<0) lab[1]=label;
+             else if (lab[2]<0) lab[2]=label;
+             else cerr<<"No empty labels !\n";
+         }
 
           new(cl[j]) AliITSclusterV2(lab,lp);
        }
@@ -147,10 +119,12 @@ Int_t AliITSFindClustersV2() {
    delete cTree; delete clusters; delete points;
 
    delete gAlice; gAlice=0;
+
    in->Close();
    out->Close();
 
    return 0;
+
 }