1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
19 ///////////////////////////////////////////////////////////////////////////////
21 // An overview of the basic philosophy of the ITS code development //
22 // and analysis is show in the figure below. //
25 <img src="picts/ITS/ITS_Analysis_schema.gif">
28 <font size=+2 color=red>
29 <p>Roberto Barbera is in charge of the ITS Offline code (1999).
30 <a href="mailto:roberto.barbera@ct.infn.it">Roberto Barbera</a>.
36 // AliITS. Inner Traking System base class.
37 // This class contains the base procedures for the Inner Tracking System
41 <img src="picts/ITS/AliITS_Class_Diagram.gif">
44 <font size=+2 color=red>
45 <p>This show the class diagram of the different elements that are part of
53 // Written by Rene Brun, Federico Carminati, and Roberto Barbera
56 // Modified and documented by Bjorn S. Nilsen
60 // Modified and documented by A. Bologna
63 // AliITS is the general base class for the ITS. Also see AliDetector for
64 // futher information.
66 ///////////////////////////////////////////////////////////////////////////////
69 #include <TClonesArray.h>
71 #include <TParticle.h>
74 #include <TVirtualMC.h>
75 #include "AliDetector.h"
77 #include "AliITSDetTypeSim.h"
78 #include "AliITSDDLRawData.h"
79 #include "AliITSLoader.h"
80 #include "AliITShit.h"
81 #include "AliITSmodule.h"
82 #include "AliITSpListItem.h"
83 #include "AliITSsimulation.h"
84 #include "AliITSsimulationFastPoints.h"
86 #include "AliITSDigitizer.h"
87 #include "AliITSRecPoint.h"
93 //______________________________________________________________________
94 AliITS::AliITS() : AliDetector(){
95 // Default initializer for ITS
96 // The default constructor of the AliITS class. In addition to
97 // creating the AliITS class it zeros the variables fIshunt (a member
98 // of AliDetector class), fEuclidOut, and fIdN, and zeros the pointers
99 // fIdSens, and fIdName. The AliDetector default constructor
107 fIshunt = 0; // not zeroed in AliDetector.
112 // SetDetectors(); // default to fOpt="All". This variable not written out.
113 SetMarkerColor(kRed);
115 //______________________________________________________________________
116 AliITS::AliITS(const char *name, const char *title):AliDetector(name,title){
117 // The standard Constructor for the ITS class.
118 // It also zeros the variables
119 // fIshunt (a member of AliDetector class), fEuclidOut, and zeros
120 // the pointers fIdSens and fIdName. To help in displaying hits via the
121 // ROOT macro display.C AliITS also sets the marker color to red. The
122 // variables passes with this constructor, const char *name and *title,
123 // are used by the constructor of AliDetector class. See AliDetector
124 // class for a description of these parameters and its constructor
132 fHits = new TClonesArray("AliITShit",1560);
133 if(gAlice->GetMCApp()) gAlice->GetMCApp()->AddHitList(fHits);
137 fIshunt = 0; // not zeroed in AliDetector
138 // Not done in AliDetector.
141 SetDetectors(); // default to fOpt="All". This variable not written out.
146 fDetTypeSim = new AliITSDetTypeSim();
148 SetMarkerColor(kRed);
151 //______________________________________________________________________
153 // Default destructor for ITS.
154 // The default destructor of the AliITS class. In addition to deleting
155 // the AliITS class it deletes the memory pointed to by
156 // fIdSens, fIdName, fDetTypeSim and it's contents.
169 this->ClearModules();
172 }// end if fITSmodules!=0
174 delete[] fIdName; // Array of TStrings
182 //______________________________________________________________________
183 AliITS::AliITS(const AliITS &source) : AliDetector(source){
184 // Copy constructor. This is a function which is not allowed to be
185 // done to the ITS. It exits with an error.
187 // AliITS &source An AliITS class.
193 if(this==&source) return;
194 Error("Copy constructor",
195 "You are not allowed to make a copy of the AliITS");
198 //______________________________________________________________________
199 AliITS& AliITS::operator=(const AliITS &source){
200 // Assignment operator. This is a function which is not allowed to be
201 // done to the ITS. It exits with an error.
203 // AliITS &source An AliITS class.
209 if(this==&source) return *this;
210 Error("operator=","You are not allowed to make a copy of the AliITS");
212 return *this; //fake return
214 //______________________________________________________________________
215 AliDigitizer* AliITS::CreateDigitizer(AliRunDigitizer* manager)const{
216 // Creates the AliITSDigitizer in a standard way for use via AliModule.
217 // This function can not be included in the .h file because of problems
218 // with the order of inclusion (recursive).
220 // AliRunDigitizer *manager The Manger class for Digitization
224 // A new AliITSRunDigitizer (cast as a AliDigitizer).
226 return new AliITSDigitizer(manager);
228 //______________________________________________________________________
230 // Initializer ITS after it has been built
231 // This routine initializes the AliITS class. It is intended to be
232 // called from the Init function in AliITSv?. Besides displaying a banner
233 // indicating that it has been called it initializes the array fIdSens
234 // and sets the default segmentation, response, digit and raw cluster
235 // classes therefore it should be called after a call to CreateGeometry.
246 if(gMC) for(i=0;i<fIdN;i++) fIdSens[i] = gMC->VolId(fIdName[i]);
251 //______________________________________________________________________
252 void AliITS::WriteGeometry(){
254 //Writes ITS geomtry on gAlice
256 if(!fLoader) MakeLoader(AliConfig::GetDefaultEventFolderName());
257 AliRunLoader* rl = fLoader->GetRunLoader();
259 AliITSgeom* geom = GetITSgeom();
264 //______________________________________________________________________
265 void AliITS::SetDefaults(){
266 // sets the default segmentation, response, digit and raw cluster classes.
273 AliInfoClass("Setting Defaults");
276 Error("SetDefaults()","fDetTypeSim is 0!");
280 fDetTypeSim->SetDefaults();
284 //______________________________________________________________________
285 void AliITS::SetDefaultSimulation(){
286 // sets the default simulation.
294 Error("SetDefaultSimulation()","fDetTypeSim is 0!");
298 fDetTypeSim->SetDefaultSimulation();
303 //______________________________________________________________________
304 void AliITS::MakeBranch(Option_t* option){
305 // Creates Tree branches for the ITS.
307 // Option_t *option String of Tree types S,D, and/or R.
308 // const char *file String of the file name where these branches
309 // are to be stored. If blank then these branches
310 // are written to the same tree as the Hits were
317 Error("MakeBranch","fDetTypeSim is 0!");
321 Bool_t cH = (strstr(option,"H")!=0);
322 Bool_t cS = (strstr(option,"S")!=0);
323 Bool_t cD = (strstr(option,"D")!=0);
325 if(cH && (fHits == 0x0)) fHits = new TClonesArray("AliITShit", 1560);
326 AliDetector::MakeBranch(option);
328 if(cS) MakeBranchS(0);
329 if(cD) MakeBranchD(0);
333 //___________________________________________________________________
334 void AliITS::MakeBranchS(const char* fl){
336 // Creates Tree Branch for the ITS summable digits.
338 // cont char *fl File name where SDigits branch is to be written
339 // to. If blank it write the SDigits to the same
340 // file in which the Hits were found.
344 Error("MakeBranchS","fDetTypeSim is 0!");
346 Int_t buffersize = 4000;
349 // only one branch for SDigits.
350 sprintf(branchname,"%s",GetName());
352 if(fLoader->TreeS()){
353 if(fDetTypeSim->GetSDigits()==0x0) fDetTypeSim->SetSDigits(new TClonesArray("AliITSpListItem",1000));
354 TClonesArray* sdig = (TClonesArray*)fDetTypeSim->GetSDigits();
355 MakeBranchInTree(fLoader->TreeS(),branchname,&sdig,buffersize,fl);
358 //______________________________________________________________________
359 void AliITS::MakeBranchD(const char* file){
361 //Make branch for digits
363 Warning("MakeBranchD","fDetTypeSim is 0!");
366 fDetTypeSim->SetLoader(fLoader);
367 MakeBranchInTreeD(fLoader->TreeD(),file);
370 //___________________________________________________________________
371 void AliITS:: MakeBranchInTreeD(TTree* treeD, const char* file){
372 // Creates Tree branches for the ITS.
375 Error("MakeBranchS","fDetTypeSim is 0!");
377 fDetTypeSim->SetLoader(fLoader);
379 const Char_t *det[3] = {"SPD","SDD","SSD"};
381 Int_t buffersize = 4000;
382 Char_t branchname[30];
384 if(!fDetTypeSim->GetDigits()){
385 fDetTypeSim->SetDigits(new TObjArray(fgkNTYPES));
387 for(Int_t i=0;i<fgkNTYPES;i++){
388 digclass = fDetTypeSim->GetDigitClassName(i);
389 TString classn = digclass;
390 if(!((fDetTypeSim->GetDigits())->At(i))){
391 (fDetTypeSim->GetDigits())->AddAt(new TClonesArray(classn.Data(),1000),i);
394 if(fgkNTYPES==3) sprintf(branchname,"%sDigits%s",GetName(),det[i]);
395 else sprintf(branchname,"%sDigits%d",GetName(),i+1);
396 TObjArray* dig = DigitsAddress(i);
397 if(GetDigits() && treeD) AliDetector::MakeBranchInTree(treeD,branchname, &dig,buffersize,file);
401 //______________________________________________________________________
402 void AliITS::SetTreeAddress(){
403 // Set branch address for the Trees.
412 Error("SetTreeAddress","fDetTypeSim is 0!");
416 fDetTypeSim->SetLoader(fLoader);
418 TTree *treeS = fLoader->TreeS();
419 TTree *treeD = fLoader->TreeD();
420 if (fLoader->TreeH() && (fHits == 0x0)) {
421 fHits = new TClonesArray("AliITShit", 1560);
423 AliDetector::SetTreeAddress();
425 fDetTypeSim->SetTreeAddressS(treeS, (Char_t*)GetName());
426 fDetTypeSim->SetTreeAddressD(treeD, (Char_t*)GetName());
430 //______________________________________________________________________
431 void AliITS::AddHit(Int_t track, Int_t *vol, Float_t *hits){
433 // The function to add information to the AliITShit class. See the
434 // AliITShit class for a full description. This function allocates the
435 // necessary new space for the hit information and passes the variable
436 // track, and the pointers *vol and *hits to the AliITShit constructor
439 // Int_t track Track number which produced this hit.
440 // Int_t *vol Array of Integer Hit information. See AliITShit.h
441 // Float_t *hits Array of Floating Hit information. see AliITShit.h
446 TClonesArray &lhits = *fHits;
447 new(lhits[fNhits++]) AliITShit(fIshunt,track,vol,hits);
450 //______________________________________________________________________
451 void AliITS::FillModules(Int_t evnt,Int_t bgrev,Int_t nmodules,
452 Option_t *option, const char *filename){
453 // fill the modules with the sorted by module hits; add hits from
454 // background if option=Add.
456 static TTree *trH1; //Tree with background hits
457 static Bool_t first=kTRUE;
459 const char *addBgr = strstr(option,"Add");
461 evnt = nmodules; // Dummy use of variables to remove warnings
464 file=new TFile(filename);
469 // Get Hits Tree header from file
470 if(trH1) delete trH1;
474 sprintf(treeName,"TreeH%d",bgrev);
475 trH1 = (TTree*)gDirectory->Get(treeName);
477 Error("FillModules","cannot find Hits Tree for event:%d",bgrev);
479 // Set branch addresses
482 FillModules(fLoader->TreeH(),0); // fill from this file's tree.
485 FillModules(trH1,10000000); // Default mask 10M.
486 TTree *fAli=fLoader->GetRunLoader()->TreeK();
488 if (fAli) fileAli =fAli->GetCurrentFile();
496 //______________________________________________________________________
497 void AliITS::FillModules(TTree *treeH, Int_t mask) {
498 // fill the modules with the sorted by module hits;
499 // can be called many times to do a merging
501 // TTree *treeH The tree containing the hits to be copied into
503 // Int_t mask The track number mask to indecate which file
504 // this hits came from.
512 Error("FillModules","Tree is NULL");
514 Int_t lay,lad,det,index;
518 sprintf(branchname,"%s",GetName());
519 TBranch *branch = treeH->GetBranch(branchname);
521 Error("FillModules","%s branch in TreeH not found",branchname);
524 branch->SetAddress(&fHits);
525 Int_t nTracks =(Int_t) treeH->GetEntries();
527 for(iPrimTrack=0; iPrimTrack<nTracks; iPrimTrack++){
529 Int_t nBytes = treeH->GetEvent(iPrimTrack);
530 if (nBytes <= 0) continue;
531 Int_t nHits = fHits->GetEntriesFast();
532 for(h=0; h<nHits; h++){
533 itsHit = (AliITShit *)fHits->UncheckedAt(h);
534 itsHit->GetDetectorID(lay,lad,det);
536 index = GetITSgeom()->GetModuleIndex(lay,lad,det);
538 index=det-1; // This should not be used.
539 } // end if [You must have fITSgeom for this to work!]
540 mod = GetModule(index);
541 itsHit->SetTrack(itsHit->GetTrack()+mask); // Set track mask.
542 mod->AddHit(itsHit,iPrimTrack,h);
543 } // end loop over hits
544 } // end loop over tracks
547 //______________________________________________________________________
548 void AliITS::InitModules(Int_t size,Int_t &nmodules){
549 // Initialize the modules array.
551 // Int_t size Size of array of the number of modules to be
552 // created. If size <=0 then the number of modules
553 // is gotten from AliITSgeom class kept in fITSgeom.
555 // Int_t &nmodules The number of modules existing.
560 fITSmodules->Delete();
562 } // end fir fITSmoudles
565 Error("InitModules","fDetTypeSim is null!");
569 Int_t nl,indexMAX,index;
571 if(size<=0){ // default to using data stored in AliITSgeom
572 if(fDetTypeSim->GetITSgeom()==0) {
573 Error("InitModules","fITSgeom not defined");
575 } // end if fITSgeom==0
576 nl = fDetTypeSim->GetITSgeom()->GetNlayers();
577 indexMAX = fDetTypeSim->GetITSgeom()->GetIndexMax();
579 fITSmodules = new TObjArray(indexMAX);
580 for(index=0;index<indexMAX;index++){
581 fITSmodules->AddAt( new AliITSmodule(index),index);
584 fITSmodules = new TObjArray(size);
585 for(index=0;index<size;index++) {
586 fITSmodules->AddAt( new AliITSmodule(index),index);
592 //______________________________________________________________________
593 void AliITS::Hits2SDigits(){
594 // Standard Hits to summable Digits function.
602 Error("Hits2SDigits","fDetTypeSim is null!");
608 fLoader->LoadHits("read");
609 fLoader->LoadSDigits("recreate");
610 AliRunLoader* rl = fLoader->GetRunLoader();
611 fDetTypeSim->SetLoader(fLoader);
612 for (Int_t iEvent = 0; iEvent < rl->GetNumberOfEvents(); iEvent++) {
613 // Do the Hits to Digits operation. Use Standard input values.
614 // Event number from file, no background hit merging , use size from
615 // AliITSgeom class, option="All", input from this file only.
616 rl->GetEvent(iEvent);
617 if (!fLoader->TreeS()) fLoader->MakeTree("S");
620 HitsToPreDigits(iEvent,0,-1," ",fOpt," ");
623 fLoader->UnloadHits();
624 fLoader->UnloadSDigits();
627 //______________________________________________________________________
628 void AliITS::Hits2Digits(){
630 //Conversion from hits to digits
632 Error("Hits2SDigits","fDetTypeSim is 0!");
636 fDetTypeSim->SetLoader(fLoader);
639 fLoader->LoadHits("read");
640 fLoader->LoadDigits("recreate");
641 AliRunLoader* rl = fLoader->GetRunLoader();
642 for (Int_t iEvent = 0; iEvent < rl->GetNumberOfEvents(); iEvent++) {
643 rl->GetEvent(iEvent);
644 if (!fLoader->TreeD()) fLoader->MakeTree("D");
647 HitsToDigits(iEvent,0,-1," ",fOpt," ");
650 fLoader->UnloadHits();
651 fLoader->UnloadDigits();
655 //______________________________________________________________________
656 void AliITS::HitsToDigits(Int_t evNumber,Int_t bgrev,Int_t size,
657 Option_t *option,Option_t *opt,
658 const char *filename){
659 // Keep galice.root for signal and name differently the file for
660 // background when add! otherwise the track info for signal will be lost !
661 // the condition below will disappear when the geom class will be
662 // initialized for all versions - for the moment it is only for v5 !
663 // 7 is the SDD beam test version.
665 // Int_t evnt Event to be processed.
666 // Int_t bgrev Background Hit tree number.
667 // Int_t nmodules Not used.
668 // Option_t *option String indicating if merging hits or not. To
669 // merge hits set equal to "Add". Otherwise no
670 // background hits are considered.
671 // Test_t *filename File name containing the background hits..
678 Error("HitsToDigits","fDetTypeSim is null!");
681 fDetTypeSim->SetLoader(fLoader);
682 if(!GetITSgeom()) return; // need transformations to do digitization.
683 AliITSgeom *geom = GetITSgeom();
685 const char *all = strstr(opt,"All");
686 const char *det[3] = {strstr(opt,"SPD"),strstr(opt,"SDD"),
688 static Bool_t setDef=kTRUE;
689 if (setDef) SetDefaultSimulation();
693 InitModules(size,nmodules);
694 FillModules(evNumber,bgrev,nmodules,option,filename);
696 AliITSsimulation *sim = 0;
697 AliITSmodule *mod = 0;
699 for(Int_t module=0;module<geom->GetIndexMax();module++){
700 id = geom->GetModuleType(module);
701 if (!all && !det[id]) continue;
702 sim = (AliITSsimulation*)fDetTypeSim->GetSimulationModel(id);
704 Error("HitsToDigits","The simulation class was not "
705 "instanciated for module %d type %s!",module,
706 geom->GetModuleTypeName(module));
709 mod = (AliITSmodule *)fITSmodules->At(module);
710 sim->DigitiseModule(mod,module,evNumber);
711 // fills all branches - wasted disk space
712 fLoader->TreeD()->Fill();
718 fLoader->TreeD()->GetEntries();
719 fLoader->TreeD()->AutoSave();
721 fLoader->TreeD()->Reset();
723 //_____________________________________________________________________
724 void AliITS::Hits2PreDigits(){
725 // Turn hits into SDigits
728 Error("Hits2SDigits","fDetTypeSim is 0!");
732 fDetTypeSim->SetLoader(fLoader);
735 HitsToPreDigits(fLoader->GetRunLoader()->GetEventNumber(),
739 //______________________________________________________________________
740 void AliITS::HitsToPreDigits(Int_t evNumber,Int_t bgrev,Int_t size,
741 Option_t *option,Option_t *opt,
742 const char *filename){
743 // Keep galice.root for signal and name differently the file for
744 // background when add! otherwise the track info for signal will be lost !
745 // the condition below will disappear when the geom class will be
746 // initialized for all versions - for the moment it is only for v5 !
747 // 7 is the SDD beam test version.
749 // Int_t evnt Event to be processed.
750 // Int_t bgrev Background Hit tree number.
751 // Int_t nmodules Not used.
752 // Option_t *option String indicating if merging hits or not. To
753 // merge hits set equal to "Add". Otherwise no
754 // background hits are considered.
755 // Test_t *filename File name containing the background hits..
763 Error("HitsToPreDigits","fDetTypeSim is null!");
766 fDetTypeSim->SetLoader(fLoader);
769 Error("HitsToPreDigits","fGeom is null!");
770 return; // need transformations to do digitization.
772 AliITSgeom *geom = GetITSgeom();
774 const char *all = strstr(opt,"All");
775 const char *det[3] = {strstr(opt,"SPD"),strstr(opt,"SDD"),
777 static Bool_t setDef=kTRUE;
778 if (setDef) SetDefaultSimulation();
782 InitModules(size,nmodules);
783 FillModules(evNumber,bgrev,nmodules,option,filename);
786 AliITSsimulation *sim = 0;
787 AliITSmodule *mod = 0;
789 for(module=0;module<geom->GetIndexMax();module++){
790 id = geom->GetModuleType(module);
791 if (!all && !det[id]) continue;
792 sim = (AliITSsimulation*)GetSimulationModel(id);
794 Error("HitsToPreDigits","The simulation class was not "
795 "instanciated for module %d type %s!",module,
796 geom->GetModuleTypeName(module));
799 mod = (AliITSmodule *)fITSmodules->At(module);
800 sim->SDigitiseModule(mod,module,evNumber);
801 // fills all branches - wasted disk space
802 fLoader->TreeS()->Fill();
803 fDetTypeSim->ResetSDigits();
809 fLoader->TreeS()->GetEntries();
810 fLoader->TreeS()->AutoSave();
811 fLoader->WriteSDigits("OVERWRITE");
813 fLoader->TreeS()->Reset();
816 //_____________________________________________________________________
817 void AliITS::HitsToFastRecPoints(Int_t evNumber,Int_t bgrev,Int_t size,
818 Option_t *opt0,Option_t *opt1,
820 // keep galice.root for signal and name differently the file for
821 // background when add! otherwise the track info for signal will be lost !
822 // the condition below will disappear when the geom class will be
823 // initialized for all versions - for the moment it is only for v5 !
825 // Int_t evnt Event to be processed.
826 // Int_t bgrev Background Hit tree number.
827 // Int_t size Size used by InitModules. See InitModules.
828 // Option_t *opt0 Option passed to FillModules. See FillModules.
829 // Option_t *opt1 String indicating if merging hits or not. To
830 // merge hits set equal to "Add". Otherwise no
831 // background hits are considered.
832 // Test_t *flnm File name containing the background hits..
841 Error("HitsToPreDigits","fGeom is null!");
842 return; // need transformations to do digitization.
844 AliITSgeom *geom = GetITSgeom();
846 AliITSLoader *pITSloader = (AliITSLoader*)fLoader;
848 const char *all = strstr(opt1,"All");
849 const char *det[3] ={strstr(opt1,"SPD"),strstr(opt1,"SDD"),
852 InitModules(size,nmodules);
853 FillModules(evNumber,bgrev,nmodules,opt0,flnm);
855 AliITSsimulation *sim = 0;
856 AliITSmodule *mod = 0;
859 TTree *lTR = pITSloader->TreeR();
861 pITSloader->MakeTree("R");
862 lTR = pITSloader->TreeR();
865 TClonesArray* ptarray = new TClonesArray("AliITSRecPoint",1000);
866 TBranch* branch = (TBranch*)lTR->Branch("ITSRecPointsF",&ptarray);
867 branch->SetAddress(&ptarray);
868 //m.b. : this change is nothing but a nice way to make sure
870 AliDebug(1,Form("N mod = %d",geom->GetIndexMax()));
871 for(module=0;module<geom->GetIndexMax();module++){
872 id = geom->GetModuleType(module);
873 if (!all && !det[id]) continue;
874 sim = (AliITSsimulation*)GetSimulationModel(id);
876 Error("HitsToFastPoints","The simulation class was not "
877 "instanciated for module %d type %x!",module,
878 geom->GetModuleTypeName(module));
881 mod = (AliITSmodule *)fITSmodules->At(module);
882 sim->CreateFastRecPoints(mod,module,gRandom,ptarray);
887 fLoader->WriteRecPoints("OVERWRITE");
890 //_____________________________________________________________________
891 Int_t AliITS::Hits2Clusters(TTree *hTree, TTree *cTree) {
892 //------------------------------------------------------------
893 // This function creates ITS clusters
894 //------------------------------------------------------------
896 Error("HitsToPreDigits","fGeom is null!");
897 return 1; // need transformations to do digitization.
899 AliITSgeom *geom=GetITSgeom();
900 Int_t mmax=geom->GetIndexMax();
902 InitModules(-1,mmax);
903 FillModules(hTree,0);
905 TClonesArray *points = new TClonesArray("AliITSRecPoint",1000);
906 TBranch *branch=cTree->GetBranch("ITSRecPoints");
907 if (!branch) cTree->Branch("ITSRecPoints",&points);
908 else branch->SetAddress(&points);
910 AliITSsimulationFastPoints sim;
912 for (Int_t m=0; m<mmax; m++) {
913 AliITSmodule *mod=GetModule(m);
914 sim.CreateFastRecPoints(mod,m,gRandom,points);
915 ncl+=points->GetEntriesFast();
920 Info("Hits2Clusters","Number of found fast clusters : %d",ncl);
928 //_____________________________________________________________________
929 void AliITS::CheckLabels(Int_t lab[3]) const {
930 //------------------------------------------------------------
931 // Tries to find mother's labels
932 //------------------------------------------------------------
934 if(lab[0]<0 && lab[1]<0 && lab[2]<0) return; // In case of no labels just exit
936 Int_t ntracks = gAlice->GetMCApp()->GetNtrack();
937 for (Int_t i=0;i<3;i++){
938 Int_t label = lab[i];
939 if (label>=0 && label<ntracks) {
940 TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label);
941 if (part->P() < 0.005) {
942 Int_t m=part->GetFirstMother();
946 if (part->GetStatusCode()>0) {
956 //______________________________________________________________________
957 void AliITS::SDigitsToDigits(Option_t *opt){
958 // Standard Summable digits to Digits function.
964 Error("SDigitsToSDigits","fDetTypeSim is 0!");
968 fDetTypeSim->SetLoader(fLoader);
970 fDetTypeSim->SDigitsToDigits(opt,(Char_t*)GetName());
974 //______________________________________________________________________
975 void AliITS::ResetDigits(){
976 // Reset number of digits and the digits array for the ITS detector.
982 Error("ResetDigits","fDetTypeSim is 0!");
986 fDetTypeSim->ResetDigits();
990 //______________________________________________________________________
991 void AliITS::ResetDigits(Int_t branch){
992 // Reset number of digits and the digits array for this branch.
999 Error("ResetDigits","fDetTypeSim is 0!");
1003 fDetTypeSim->ResetDigits(branch);
1006 //______________________________________________________________________
1007 void AliITS::AddSumDigit(AliITSpListItem &sdig){
1008 // Adds the a module full of summable digits to the summable digits tree.
1010 // AliITSpListItem &sdig SDigit to be added to SDigits tree.
1017 Error("AddSumDigit","fDetTypeSim is 0!");
1020 fDetTypeSim->AddSumDigit(sdig);
1023 //______________________________________________________________________
1024 void AliITS::AddRealDigit(Int_t branch, Int_t *digits){
1025 // Add a real digit - as coming from data.
1027 // Int_t id Detector type number.
1028 // Int_t *digits Integer array containing the digits info. See
1036 Error("AddRealDigit","fDetTypeSim is 0!");
1039 fDetTypeSim->AddRealDigit(branch,digits);
1042 //______________________________________________________________________
1043 void AliITS::AddSimDigit(Int_t branch, AliITSdigit *d){
1044 // Add a simulated digit.
1046 // Int_t id Detector type number.
1047 // AliITSdigit *d Digit to be added to the Digits Tree. See
1055 Error("AddSimDigit","fDetTypeSim is 0!");
1058 fDetTypeSim->AddSimDigit(branch,d);
1061 //______________________________________________________________________
1062 void AliITS::AddSimDigit(Int_t branch,Float_t phys,Int_t *digits,Int_t *tracks,
1063 Int_t *hits,Float_t *charges){
1064 // Add a simulated digit to the list.
1066 // Int_t id Detector type number.
1067 // Float_t phys Physics indicator. See AliITSdigits.h
1068 // Int_t *digits Integer array containing the digits info. See
1070 // Int_t *tracks Integer array [AliITSdigitS?D::GetNTracks()]
1071 // containing the track numbers that contributed to
1073 // Int_t *hits Integer array [AliITSdigitS?D::GetNTracks()]
1074 // containing the hit numbers, from AliITSmodule, that
1075 // contributed to this digit.
1076 // Float_t *charge Floating point array of the signals contributed
1077 // to this digit by each track.
1084 Error("AddSimDigit","fDetTypeSim is 0!");
1087 fDetTypeSim->AddSimDigit(branch,phys,digits,tracks,hits,charges);
1090 //______________________________________________________________________
1091 void AliITS::Digits2Raw(){
1092 // convert digits of the current event to raw data
1095 Error("Digits2Raw","fDetTypeSim is 0!");
1098 fDetTypeSim->SetLoader(fLoader);
1100 fDetTypeSim->GetLoader()->LoadDigits();
1101 TTree* digits = fDetTypeSim->GetLoader()->TreeD();
1103 Error("Digits2Raw", "no digits tree");
1106 fDetTypeSim->SetTreeAddressD(digits,(Char_t*)GetName());
1108 AliITSDDLRawData rawWriter;
1112 // 2: txt files with digits
1113 //BE CAREFUL, verbose level 2 MUST be used only for debugging and
1114 //it is highly suggested to use this mode only for debugging digits files
1115 //reasonably small, because otherwise the size of the txt files can reach
1116 //quickly several MB wasting time and disk space.
1117 rawWriter.SetVerbose(0);
1119 //SILICON PIXEL DETECTOR
1120 Info("Digits2Raw", "Formatting raw data for SPD");
1121 rawWriter.RawDataSPD(digits->GetBranch("ITSDigitsSPD"));
1123 //SILICON DRIFT DETECTOR
1124 Info("Digits2Raw", "Formatting raw data for SDD");
1125 rawWriter.RawDataSDD(digits->GetBranch("ITSDigitsSDD"));
1127 //SILICON STRIP DETECTOR
1128 Info("Digits2Raw", "Formatting raw data for SSD");
1129 rawWriter.RawDataSSD(digits->GetBranch("ITSDigitsSSD"));
1131 fLoader->UnloadDigits();
1141 //______________________________________________________________________
1142 AliLoader* AliITS::MakeLoader(const char* topfoldername){
1143 //builds ITSgetter (AliLoader type)
1144 //if detector wants to use castomized getter, it must overload this method
1146 Info("MakeLoader","Creating AliITSLoader. Top folder is %s.",
1148 fLoader = new AliITSLoader(GetName(),topfoldername);