+++ /dev/null
-Int_t AliITSHits2SDigits(const char *inFile = "galice.root"){
-
- // Dynamically link some shared libs
- if (gClassTable->GetID("AliRun") < 0) {
- gROOT->LoadMacro("loadlibs.C");
- loadlibs();
- } // end if
-
- // Connect the Root Galice file containing Geometry, Kine and Hits
-
- TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(inFile);
- if (file) {file->Close(); delete file;}
- cout << "AliITSHits2SDigits" << endl;
- file = new TFile(inFile,"UPDATE");
- if (!file->IsOpen()) {
- cerr<<"Can't open "<<inFile<<" !" << endl;
- return 1;
- } // end if !file
- file->ls();
-
- // Get AliRun object from file or return if not on file
- if (gAlice) delete gAlice;
- gAlice = (AliRun*)file->Get("gAlice");
- if (!gAlice) {
- cerr << "AliITSITSHits2Digits.C : AliRun object not found on file"
- << endl;
- return 2;
- } // end if !gAlice
-
- gAlice->GetEvent(0);
- AliITS *ITS = (AliITS*)gAlice->GetDetector("ITS");
- if (!ITS) {
- cerr<<"AliITSHits2Digits.C : AliITS object not found on file"
- << endl;
- return 3;
- } // end if !ITS
- if(!(ITS->GetITSgeom())){
- cerr << " AliITSgeom not found. Can't digitize with out it." << endl;
- return 4;
- } // end if
-
- // SPD
- cout << "Changing from Default SPD simulation, and responce." << endl;
- AliITSDetType *iDetType=ITS->DetType(0);
- AliITSsegmentationSPD *seg0=(AliITSsegmentationSPD*)iDetType->
- GetSegmentationModel();
- AliITSresponseSPD *res0 = (AliITSresponseSPD*)iDetType->GetResponseModel();
- AliITSsimulationSPD *sim0=new AliITSsimulationSPD(seg0,res0);
- ITS->SetSimulationModel(0,sim0);
- // test
- cout << "SPD dimensions " << seg0->Dx() << " " << seg0->Dz() << endl;
- cout << "SPD npixels " << seg0->Npz() << " " << seg0->Npx() << endl;
- cout << "SPD pitches " << seg0->Dpz(0) << " " << seg0->Dpx(0) << endl;
- // end test
-
- // SDD
- cout << "Changing from Default SDD simulation, and responce." << endl;
- //Set response functions
- Float_t baseline = 10.;
- Float_t noise = 1.75;
- // SDD compression param: 2 fDecrease, 2fTmin, 2fTmax or disable,
- // 2 fTolerance
- AliITSDetType *iDetType=ITS->DetType(1);
- AliITSresponseSDD *res1 = (AliITSresponseSDD*)iDetType->GetResponseModel();
- if (!res1) {
- res1=new AliITSresponseSDD();
- ITS->SetResponseModel(1,res1);
- } // end if !res1
- Float_t fCutAmp = baseline + 2.*noise;
- Int_t cp[8]={0,0,fCutAmp,fCutAmp,0,0,0,0}; //1D
-
- //res1->SetZeroSupp("2D");
- res1->SetZeroSupp("1D");
- res1->SetNoiseParam(noise,baseline);
- res1->SetDo10to8(kTRUE);
- res1->SetCompressParam(cp);
- res1->SetMinVal(4);
- res1->SetDiffCoeff(3.6,40.);
- AliITSsegmentationSDD *seg1=(AliITSsegmentationSDD*)iDetType->
- GetSegmentationModel();
- if (!seg1) {
- seg1 = new AliITSsegmentationSDD(ITS->GetITSgeom(),res1);
- ITS->SetSegmentationModel(1,seg1);
- } // end if !seg1
- AliITSsimulationSDD *sim1 = new AliITSsimulationSDD(seg1,res1);
- sim1->SetDoFFT(1);
- sim1->SetCheckNoise(kFALSE);
- ITS->SetSimulationModel(1,sim1);
-
- // SSD
- cout << "Changing from Default SSD simulation, and responce." << endl;
- AliITSDetType *iDetType = ITS->DetType(2);
- AliITSsegmentationSSD *seg2 = (AliITSsegmentationSSD*)iDetType->
- GetSegmentationModel();
- AliITSresponseSSD *res2 = (AliITSresponseSSD*)iDetType->GetResponseModel();
- res2->SetSigmaSpread(3.,2.);
- AliITSsimulationSSD *sim2 = new AliITSsimulationSSD(seg2,res2);
- ITS->SetSimulationModel(2,sim2);
-
- if(!gAlice->TreeS()){
- cout << "Having to create the SDigits Tree." << endl;
- gAlice->MakeTree("S");
- } // end if !gAlice->TreeS()
- //make branch
- ITS->MakeBranch("S");
- ITS->SetTreeAddress();
- cout << "Digitizing ITS..." << endl;
-
- TStopwatch timer;
- Long_t size0 = file->GetSize();
- timer.Start();
- ITS->Hits2SDigits();
- timer.Stop(); timer.Print();
-
- delete gAlice; gAlice=0;
- file->Close();
- Long_t size1 = file->GetSize();
- cout << "File size before = " << size0 << " file size after = " << size1;
- cout << "Increase in file size is " << size1-size0 << " Bytes" << endl;
- delete file;
- return 0;
-};
-