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"
88 #include "AliITSsegmentationSPD.h"
89 #include "AliITSsegmentationSDD.h"
90 #include "AliITSsimulationSDD.h"
91 #include "AliITSCalibrationSDD.h"
92 #include "AliITSCalibrationSSD.h"
93 #include "AliITSsegmentationSSD.h"
94 #include "AliITSRawStreamSPD.h"
95 #include "AliITSRawStreamSSD.h"
96 #include "AliITSRawStreamSDD.h"
97 #include "AliRawReader.h"
100 #include "AliITSInitGeometry.h"
101 #include "AliITSFOSignalsSPD.h"
105 //______________________________________________________________________
106 AliITS::AliITS() : AliDetector(),
119 // Default initializer for ITS
120 // The default constructor of the AliITS class. In addition to
121 // creating the AliITS class it zeros the variables fIshunt (a member
122 // of AliDetector class), fEuclidOut, and fIdN, and zeros the pointers
123 // fIdSens, and fIdName. The AliDetector default constructor
126 // SetDetectors(); // default to fOpt="All". This variable not written out.
127 //PH SetMarkerColor(kRed);
129 //______________________________________________________________________
130 AliITS::AliITS(const Char_t *title):
131 AliDetector("ITS",title),
144 // The standard Constructor for the ITS class.
145 // It also zeros the variables
146 // fIshunt (a member of AliDetector class), fEuclidOut, and zeros
147 // the pointers fIdSens and fIdName. To help in displaying hits via the
148 // ROOT macro display.C AliITS also sets the marker color to red. The
149 // variables passes with this constructor, const char *name and *title,
150 // are used by the constructor of AliDetector class. See AliDetector
151 // class for a description of these parameters and its constructor
154 // Char_t *title Simulation title for the ITS
160 fHits = new TClonesArray("AliITShit",1560); // from AliDetector
161 if(gAlice->GetMCApp()) gAlice->GetMCApp()->AddHitList(fHits);
162 //fNhits=0; //done in AliDetector(name,title)
163 SetDetectors(); // default to fOpt="All". This variable not written out.
164 fDetTypeSim = new AliITSDetTypeSim();
165 //PH SetMarkerColor(kRed);
166 if(!fLoader) MakeLoader(AliConfig::GetDefaultEventFolderName());
167 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
169 //______________________________________________________________________
170 AliITS::AliITS(const char *name, const char *title):
171 AliDetector(name,title),
184 // The standard Constructor for the ITS class.
185 // It also zeros the variables
186 // fIshunt (a member of AliDetector class), fEuclidOut, and zeros
187 // the pointers fIdSens and fIdName. To help in displaying hits via the
188 // ROOT macro display.C AliITS also sets the marker color to red. The
189 // variables passes with this constructor, const char *name and *title,
190 // are used by the constructor of AliDetector class. See AliDetector
191 // class for a description of these parameters and its constructor
194 fHits = new TClonesArray("AliITShit",1560);
195 if(gAlice->GetMCApp()) gAlice->GetMCApp()->AddHitList(fHits);
196 //fNhits=0; //done in AliDetector(name,title)
198 SetDetectors(); // default to fOpt="All". This variable not written out.
200 fDetTypeSim = new AliITSDetTypeSim();
201 //PH SetMarkerColor(kRed);
202 if(!fLoader) MakeLoader(AliConfig::GetDefaultEventFolderName());
203 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
206 //______________________________________________________________________
208 // Default destructor for ITS.
209 // The default destructor of the AliITS class. In addition to deleting
210 // the AliITS class it deletes the memory pointed to by
211 // fIdSens, fIdName, fDetTypeSim and it's contents.
225 this->ClearModules();
228 }// end if fITSmodules!=0
230 delete[] fIdName; // Array of TStrings
232 Int_t size = AliITSgeomTGeo::GetNModules();
243 for(Int_t j=0; j<size; j++){
255 //______________________________________________________________________
256 AliDigitizer* AliITS::CreateDigitizer(AliRunDigitizer* manager)const{
257 // Creates the AliITSDigitizer in a standard way for use via AliModule.
258 // This function can not be included in the .h file because of problems
259 // with the order of inclusion (recursive).
261 // AliRunDigitizer *manager The Manger class for Digitization
265 // A new AliITSRunDigitizer (cast as a AliDigitizer).
267 return new AliITSDigitizer(manager);
269 //______________________________________________________________________
271 // Initializer ITS after it has been built
272 // This routine initializes the AliITS class. It is intended to be
273 // called from the Init function in AliITSv?. Besides displaying a banner
274 // indicating that it has been called it initializes the array fIdSens
275 // and sets the default segmentation, response, digit and raw cluster
276 // classes therefore it should be called after a call to CreateGeometry.
285 if(gMC) for(i=0;i<fIdN;i++) fIdSens[i] = gMC->VolId(fIdName[i]);
288 //______________________________________________________________________
289 void AliITS::SetDefaults(){
290 // sets the default segmentation, response, digit and raw cluster classes.
297 AliInfoClass("AliITS::Setting Defaults");
299 Error("SetDefaults()","fDetTypeSim is 0!");
303 fDetTypeSim->SetDefaults();
304 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
307 //______________________________________________________________________
308 void AliITS::SetDefaultSimulation(){
309 // sets the default simulation.
317 Error("SetDefaultSimulation()","fDetTypeSim is 0!");
321 fDetTypeSim->SetDefaultSimulation();
322 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
327 //______________________________________________________________________
328 void AliITS::MakeBranch(Option_t* option){
329 // Creates Tree branches for the ITS.
331 // Option_t *option String of Tree types S,D, and/or R.
332 // const char *file String of the file name where these branches
333 // are to be stored. If blank then these branches
334 // are written to the same tree as the Hits were
341 Error("MakeBranch","fDetTypeSim is 0!");
345 Bool_t cH = (strstr(option,"H")!=0);
346 Bool_t cS = (strstr(option,"S")!=0);
347 Bool_t cD = (strstr(option,"D")!=0);
349 if(cH && (fHits == 0x0)) fHits = new TClonesArray("AliITShit", 1560);
350 AliDetector::MakeBranch(option);
352 if(cS) MakeBranchS(0);
353 if(cD) MakeBranchD(0);
357 //___________________________________________________________________
358 void AliITS::MakeBranchS(const char* fl){
360 // Creates Tree Branch for the ITS summable digits.
362 // cont char *fl File name where SDigits branch is to be written
363 // to. If blank it write the SDigits to the same
364 // file in which the Hits were found.
368 Error("MakeBranchS","fDetTypeSim is 0!");
370 Int_t buffersize = 4000;
373 // only one branch for SDigits.
374 sprintf(branchname,"%s",GetName());
376 if(fLoader->TreeS()){
377 TClonesArray* sdig = (TClonesArray*)fDetTypeSim->GetSDigits();
378 MakeBranchInTree(fLoader->TreeS(),branchname,&sdig,buffersize,fl);
381 //______________________________________________________________________
382 void AliITS::MakeBranchD(const char* file){
384 //Make branch for digits
386 Warning("MakeBranchD","fDetTypeSim is 0!");
389 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
390 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
391 MakeBranchInTreeD(fLoader->TreeD(),file);
394 //___________________________________________________________________
395 void AliITS:: MakeBranchInTreeD(TTree* treeD, const char* file){
396 // Creates Tree branches for the ITS.
399 Error("MakeBranchS","fDetTypeSim is 0!");
401 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
402 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
404 const Char_t *det[3] = {"SPD","SDD","SSD"};
405 const Char_t* digclass;
406 Int_t buffersize = 4000;
407 Char_t branchname[30];
409 if(!fDetTypeSim->GetDigits()){
410 fDetTypeSim->SetDigits(new TObjArray(fgkNTYPES));
412 for(Int_t i=0;i<fgkNTYPES;i++){
413 digclass = fDetTypeSim->GetDigitClassName(i);
414 TString classn = digclass;
415 if(!((fDetTypeSim->GetDigits())->At(i))){
416 (fDetTypeSim->GetDigits())->AddAt(new TClonesArray(classn.Data(),1000),i);
419 if(fgkNTYPES==3) sprintf(branchname,"%sDigits%s",GetName(),det[i]);
420 else sprintf(branchname,"%sDigits%d",GetName(),i+1);
421 TObjArray* dig = DigitsAddress(i);
422 if(GetDigits() && treeD) AliDetector::MakeBranchInTree(treeD,branchname, &dig,buffersize,file);
426 //______________________________________________________________________
427 void AliITS::SetTreeAddress(){
428 // Set branch address for the Trees.
437 Error("SetTreeAddress","fDetTypeSim is 0!");
441 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
442 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
444 TTree *treeS = fLoader->TreeS();
445 TTree *treeD = fLoader->TreeD();
446 if (fLoader->TreeH() && (fHits == 0x0)) {
447 fHits = new TClonesArray("AliITShit", 1560);
449 AliDetector::SetTreeAddress();
451 fDetTypeSim->SetTreeAddressS(treeS, (Char_t*)GetName());
452 fDetTypeSim->SetTreeAddressD(treeD, (Char_t*)GetName());
454 //______________________________________________________________________
455 void AliITS::AddHit(Int_t track, Int_t *vol, Float_t *hits){
457 // The function to add information to the AliITShit class. See the
458 // AliITShit class for a full description. This function allocates the
459 // necessary new space for the hit information and passes the variable
460 // track, and the pointers *vol and *hits to the AliITShit constructor
463 // Int_t track Track number which produced this hit.
464 // Int_t *vol Array of Integer Hit information. See AliITShit.h
465 // Float_t *hits Array of Floating Hit information. see AliITShit.h
470 TClonesArray &lhits = *fHits;
471 new(lhits[fNhits++]) AliITShit(fIshunt,track,vol,hits);
474 //______________________________________________________________________
475 void AliITS::FillModules(Int_t evnt,Int_t bgrev,Int_t nmodules,
476 Option_t *option, const char *filename){
477 // fill the modules with the sorted by module hits; add hits from
478 // background if option=Add.
480 static TTree *trH1; //Tree with background hits
481 static Bool_t first=kTRUE;
483 const char *addBgr = strstr(option,"Add");
485 evnt = nmodules; // Dummy use of variables to remove warnings
488 file=new TFile(filename);
493 // Get Hits Tree header from file
494 if(trH1) delete trH1;
498 sprintf(treeName,"TreeH%d",bgrev);
499 trH1 = (TTree*)gDirectory->Get(treeName);
501 Error("FillModules","cannot find Hits Tree for event:%d",bgrev);
503 // Set branch addresses
506 FillModules(fLoader->TreeH(),0); // fill from this file's tree.
509 FillModules(trH1,10000000); // Default mask 10M.
510 TTree *fAli=fLoader->GetRunLoader()->TreeK();
512 if (fAli) fileAli =fAli->GetCurrentFile();
518 //______________________________________________________________________
519 void AliITS::FillModules(TTree *treeH, Int_t mask) {
520 // fill the modules with the sorted by module hits;
521 // can be called many times to do a merging
523 // TTree *treeH The tree containing the hits to be copied into
525 // Int_t mask The track number mask to indecate which file
526 // this hits came from.
534 Error("FillModules","Tree is NULL");
536 Int_t lay,lad,det,index;
540 sprintf(branchname,"%s",GetName());
541 TBranch *branch = treeH->GetBranch(branchname);
543 Error("FillModules","%s branch in TreeH not found",branchname);
546 branch->SetAddress(&fHits);
547 Int_t nTracks =(Int_t) treeH->GetEntries();
549 for(iPrimTrack=0; iPrimTrack<nTracks; iPrimTrack++){
551 Int_t nBytes = treeH->GetEvent(iPrimTrack);
552 if (nBytes <= 0) continue;
553 Int_t nHits = fHits->GetEntriesFast();
554 for(h=0; h<nHits; h++){
555 itsHit = (AliITShit *)fHits->UncheckedAt(h);
556 itsHit->GetDetectorID(lay,lad,det);
558 index = GetITSgeom()->GetModuleIndex(lay,lad,det);
560 index=det-1; // This should not be used.
561 } // end if [You must have fITSgeom for this to work!]
562 mod = GetModule(index);
563 itsHit->SetTrack(itsHit->GetTrack()+mask); // Set track mask.
564 mod->AddHit(itsHit,iPrimTrack,h);
565 } // end loop over hits
566 } // end loop over tracks
569 //______________________________________________________________________
570 Bool_t AliITS::InitModules(Int_t size,Int_t &nmodules){
571 // Initialize the modules array.
573 // Int_t size Size of array of the number of modules to be
574 // created. If size <=0 then the number of modules
575 // is gotten from AliITSgeom class kept in fITSgeom.
577 // Int_t &nmodules The number of modules existing.
582 fITSmodules->Delete();
584 } // end fir fITSmoudles
587 Error("InitModules","fDetTypeSim is null!");
590 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
592 Int_t nl,indexMAX,index;
594 if(size<=0){ // default to using data stored in AliITSgeom
595 if(fDetTypeSim->GetITSgeom()==0) {
596 Error("InitModules","fITSgeom not defined");
598 } // end if fITSgeom==0
599 nl = fDetTypeSim->GetITSgeom()->GetNlayers();
600 indexMAX = fDetTypeSim->GetITSgeom()->GetIndexMax();
602 fITSmodules = new TObjArray(indexMAX);
603 for(index=0;index<indexMAX;index++){
604 fITSmodules->AddAt( new AliITSmodule(index),index);
607 fITSmodules = new TObjArray(size);
608 for(index=0;index<size;index++) {
609 fITSmodules->AddAt( new AliITSmodule(index),index);
616 //______________________________________________________________________
617 void AliITS::Hits2SDigits(){
618 // Standard Hits to summable Digits function.
626 Error("Hits2SDigits","fDetTypeSim is null!");
631 fLoader->LoadHits("read");
632 fLoader->LoadSDigits("recreate");
633 AliRunLoader* rl = fLoader->GetRunLoader();
634 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
635 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
637 for (Int_t iEvent = 0; iEvent < rl->GetNumberOfEvents(); iEvent++) {
638 // Do the Hits to Digits operation. Use Standard input values.
639 // Event number from file, no background hit merging , use size from
640 // AliITSgeom class, option="All", input from this file only.
641 rl->GetEvent(iEvent);
642 if (!fLoader->TreeS()) fLoader->MakeTree("S");
645 HitsToPreDigits(iEvent,0,-1," ",fOpt," ");
648 fLoader->UnloadHits();
649 fLoader->UnloadSDigits();
652 //______________________________________________________________________
653 void AliITS::Hits2Digits(){
655 //Conversion from hits to digits
657 Error("Hits2SDigits","fDetTypeSim is 0!");
661 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
662 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
665 fLoader->LoadHits("read");
666 fLoader->LoadDigits("recreate");
667 AliRunLoader* rl = fLoader->GetRunLoader();
668 for (Int_t iEvent = 0; iEvent < rl->GetNumberOfEvents(); iEvent++) {
669 rl->GetEvent(iEvent);
670 if (!fLoader->TreeD()) fLoader->MakeTree("D");
673 HitsToDigits(iEvent,0,-1," ",fOpt," ");
676 fLoader->UnloadHits();
677 fLoader->UnloadDigits();
681 //______________________________________________________________________
682 void AliITS::HitsToDigits(Int_t evNumber,Int_t bgrev,Int_t size,
683 Option_t *option,Option_t *opt,
684 const char *filename){
685 // Keep galice.root for signal and name differently the file for
686 // background when add! otherwise the track info for signal will be lost !
687 // the condition below will disappear when the geom class will be
688 // initialized for all versions - for the moment it is only for v5 !
689 // 7 is the SDD beam test version.
691 // Int_t evnt Event to be processed.
692 // Int_t bgrev Background Hit tree number.
693 // Int_t nmodules Not used.
694 // Option_t *option String indicating if merging hits or not. To
695 // merge hits set equal to "Add". Otherwise no
696 // background hits are considered.
697 // Test_t *filename File name containing the background hits..
704 Error("HitsToDigits","fDetTypeSim is null!");
707 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
708 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
709 if(!GetITSgeom()) return; // need transformations to do digitization.
710 AliITSgeom *geom = GetITSgeom();
712 const char *all = strstr(opt,"All");
713 const char *det[3] = {strstr(opt,"SPD"),strstr(opt,"SDD"),
715 static Bool_t setDef=kTRUE;
716 if (setDef) SetDefaultSimulation();
720 InitModules(size,nmodules);
721 FillModules(evNumber,bgrev,nmodules,option,filename);
723 // Reset Fast-OR signals for this event
724 fDetTypeSim->ResetFOSignals();
726 AliITSsimulation *sim = 0;
727 AliITSmodule *mod = 0;
729 for(Int_t module=0;module<geom->GetIndexMax();module++){
730 id = geom->GetModuleType(module);
731 if (!all && !det[id]) continue;
732 sim = (AliITSsimulation*)fDetTypeSim->GetSimulationModel(id);
734 Error("HitsToDigits","The simulation class was not "
735 "instanciated for module %d type %s!",module,
736 geom->GetModuleTypeName(module));
739 mod = (AliITSmodule *)fITSmodules->At(module);
740 sim->DigitiseModule(mod,module,evNumber);
741 // fills all branches - wasted disk space
742 fLoader->TreeD()->Fill();
748 // Add random noise to FO signals
749 if (all || det[0]) { // SPD present
750 fDetTypeSim->ProcessNoiseForFastOr();
753 // Add Fast-OR signals to event (only one object per event)
754 if (all || det[0]) { // SPD present
755 fDetTypeSim->WriteFOSignals();
759 fLoader->TreeD()->GetEntries();
760 fLoader->TreeD()->AutoSave();
762 fLoader->TreeD()->Reset();
764 //_____________________________________________________________________
765 void AliITS::Hits2PreDigits(){
766 // Turn hits into SDigits
769 Error("Hits2SDigits","fDetTypeSim is 0!");
773 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
774 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
777 HitsToPreDigits(fLoader->GetRunLoader()->GetEventNumber(),
781 //______________________________________________________________________
782 void AliITS::HitsToPreDigits(Int_t evNumber,Int_t bgrev,Int_t size,
783 Option_t *option,Option_t *opt,
784 const char *filename){
785 // Keep galice.root for signal and name differently the file for
786 // background when add! otherwise the track info for signal will be lost !
787 // the condition below will disappear when the geom class will be
788 // initialized for all versions - for the moment it is only for v5 !
789 // 7 is the SDD beam test version.
791 // Int_t evnt Event to be processed.
792 // Int_t bgrev Background Hit tree number.
793 // Int_t nmodules Not used.
794 // Option_t *option String indicating if merging hits or not. To
795 // merge hits set equal to "Add". Otherwise no
796 // background hits are considered.
797 // Test_t *filename File name containing the background hits..
805 Error("HitsToPreDigits","fDetTypeSim is null!");
808 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
809 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
812 Error("HitsToPreDigits","fGeom is null!");
813 return; // need transformations to do digitization.
815 AliITSgeom *geom = GetITSgeom();
817 const char *all = strstr(opt,"All");
818 const char *det[3] = {strstr(opt,"SPD"),strstr(opt,"SDD"),
820 static Bool_t setDef=kTRUE;
821 if (setDef) SetDefaultSimulation();
825 InitModules(size,nmodules);
826 FillModules(evNumber,bgrev,nmodules,option,filename);
829 AliITSsimulation *sim = 0;
830 AliITSmodule *mod = 0;
832 for(module=0;module<geom->GetIndexMax();module++){
833 id = geom->GetModuleType(module);
834 if (!all && !det[id]) continue;
835 sim = (AliITSsimulation*)GetSimulationModel(id);
837 Error("HitsToPreDigits","The simulation class was not "
838 "instanciated for module %d type %s!",module,
839 geom->GetModuleTypeName(module));
842 mod = (AliITSmodule *)fITSmodules->At(module);
843 sim->SDigitiseModule(mod,module,evNumber);
844 // fills all branches - wasted disk space
845 fLoader->TreeS()->Fill();
846 fDetTypeSim->ResetSDigits();
852 fLoader->TreeS()->GetEntries();
853 fLoader->TreeS()->AutoSave();
854 fLoader->WriteSDigits("OVERWRITE");
856 fLoader->TreeS()->Reset();
859 //_____________________________________________________________________
860 void AliITS::HitsToFastRecPoints(Int_t evNumber,Int_t bgrev,Int_t size,
861 Option_t *opt0,Option_t *opt1,
863 // keep galice.root for signal and name differently the file for
864 // background when add! otherwise the track info for signal will be lost !
865 // the condition below will disappear when the geom class will be
866 // initialized for all versions - for the moment it is only for v5 !
868 // Int_t evnt Event to be processed.
869 // Int_t bgrev Background Hit tree number.
870 // Int_t size Size used by InitModules. See InitModules.
871 // Option_t *opt0 Option passed to FillModules. See FillModules.
872 // Option_t *opt1 String indicating if merging hits or not. To
873 // merge hits set equal to "Add". Otherwise no
874 // background hits are considered.
875 // Test_t *flnm File name containing the background hits..
884 Error("HitsToPreDigits","fGeom is null!");
885 return; // need transformations to do digitization.
887 AliITSgeom *geom = GetITSgeom();
889 AliITSLoader *pITSloader = (AliITSLoader*)fLoader;
891 const char *all = strstr(opt1,"All");
892 const char *det[3] ={strstr(opt1,"SPD"),strstr(opt1,"SDD"),
895 InitModules(size,nmodules);
896 FillModules(evNumber,bgrev,nmodules,opt0,flnm);
898 AliITSsimulation *sim = 0;
899 AliITSmodule *mod = 0;
902 TTree *lTR = pITSloader->TreeR();
904 pITSloader->MakeTree("R");
905 lTR = pITSloader->TreeR();
908 TClonesArray* ptarray = new TClonesArray("AliITSRecPoint",1000);
909 TBranch* branch = (TBranch*)lTR->Branch("ITSRecPointsF",&ptarray);
910 branch->SetAddress(&ptarray);
911 //m.b. : this change is nothing but a nice way to make sure
913 for(module=0;module<geom->GetIndexMax();module++){
914 id = geom->GetModuleType(module);
915 if (!all && !det[id]) continue;
916 sim = (AliITSsimulation*)GetSimulationModel(id);
918 Error("HitsToFastPoints","The simulation class was not "
919 "instantiated for module %d type %s!",module,
920 geom->GetModuleTypeName(module));
923 mod = (AliITSmodule *)fITSmodules->At(module);
924 sim->CreateFastRecPoints(mod,module,gRandom,ptarray);
930 fLoader->WriteRecPoints("OVERWRITE");
933 //_____________________________________________________________________
934 Int_t AliITS::Hits2Clusters(TTree *hTree, TTree *cTree) {
935 //------------------------------------------------------------
936 // This function creates ITS clusters
937 //------------------------------------------------------------
939 Error("HitsToPreDigits","fGeom is null!");
940 return 1; // need transformations to do digitization.
942 AliITSgeom *geom=GetITSgeom();
943 Int_t mmax=geom->GetIndexMax();
945 InitModules(-1,mmax);
946 FillModules(hTree,0);
948 TClonesArray *points = new TClonesArray("AliITSRecPoint",1000);
949 TBranch *branch=cTree->GetBranch("ITSRecPoints");
950 if (!branch) cTree->Branch("ITSRecPoints",&points);
951 else branch->SetAddress(&points);
953 AliITSsimulationFastPoints sim;
955 for (Int_t m=0; m<mmax; m++) {
956 AliITSmodule *mod=GetModule(m);
957 sim.CreateFastRecPoints(mod,m,gRandom,points);
958 ncl+=points->GetEntriesFast();
963 AliDebug(1,Form("Number of found fast clusters : %d",ncl));
971 //_____________________________________________________________________
972 void AliITS::CheckLabels(Int_t lab[3]) const {
973 //------------------------------------------------------------
974 // Tries to find mother's labels
975 //------------------------------------------------------------
977 if(lab[0]<0 && lab[1]<0 && lab[2]<0) return; // In case of no labels just exit
979 Int_t ntracks = gAlice->GetMCApp()->GetNtrack();
980 for (Int_t i=0;i<3;i++){
981 Int_t label = lab[i];
982 if (label>=0 && label<ntracks) {
983 TParticle *part=(TParticle*)gAlice->GetMCApp()->Particle(label);
984 if (part->P() < 0.005) {
985 Int_t m=part->GetFirstMother();
989 if (part->GetStatusCode()>0) {
999 //______________________________________________________________________
1000 void AliITS::SDigitsToDigits(Option_t *opt){
1001 // Standard Summable digits to Digits function.
1007 AliError("fDetTypeSim is 0!");
1011 const char *all = strstr(opt,"All");
1012 const char *det[3] ={strstr(opt,"SPD"),strstr(opt,"SDD"),
1015 // Reset Fast-OR signals for this event
1016 fDetTypeSim->ResetFOSignals();
1018 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
1020 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
1021 fDetTypeSim->SDigitsToDigits(opt,(Char_t*)GetName());
1023 // Add random noise to FO signals
1024 if (all || det[0]) { // SPD present
1025 fDetTypeSim->ProcessNoiseForFastOr();
1027 // Add Fast-OR signals to event (only one object per event)
1028 if (all || det[0]) { // SPD present
1029 fDetTypeSim->WriteFOSignals();
1033 //______________________________________________________________________
1034 void AliITS::ResetDigits(){
1035 // Reset number of digits and the digits array for the ITS detector.
1041 Error("ResetDigits","fDetTypeSim is 0!");
1045 fDetTypeSim->ResetDigits();
1049 //______________________________________________________________________
1050 void AliITS::ResetDigits(Int_t branch){
1051 // Reset number of digits and the digits array for this branch.
1058 Error("ResetDigits","fDetTypeSim is 0!");
1062 fDetTypeSim->ResetDigits(branch);
1065 //______________________________________________________________________
1066 void AliITS::AddSumDigit(AliITSpListItem &sdig){
1067 // Adds the a module full of summable digits to the summable digits tree.
1069 // AliITSpListItem &sdig SDigit to be added to SDigits tree.
1076 Error("AddSumDigit","fDetTypeSim is 0!");
1079 fDetTypeSim->AddSumDigit(sdig);
1082 //______________________________________________________________________
1083 void AliITS::AddSimDigit(Int_t branch, AliITSdigit *d){
1084 // Add a simulated digit.
1086 // Int_t id Detector type number.
1087 // AliITSdigit *d Digit to be added to the Digits Tree. See
1095 Error("AddSimDigit","fDetTypeSim is 0!");
1098 fDetTypeSim->AddSimDigit(branch,d);
1101 //______________________________________________________________________
1102 void AliITS::AddSimDigit(Int_t branch,Float_t phys,Int_t *digits,Int_t *tracks,
1103 Int_t *hits,Float_t *charges, Int_t sigexpanded){
1104 // Add a simulated digit to the list.
1106 // Int_t id Detector type number.
1107 // Float_t phys Physics indicator. See AliITSdigits.h
1108 // Int_t *digits Integer array containing the digits info. See
1110 // Int_t *tracks Integer array [AliITSdigitS?D::GetNTracks()]
1111 // containing the track numbers that contributed to
1113 // Int_t *hits Integer array [AliITSdigitS?D::GetNTracks()]
1114 // containing the hit numbers, from AliITSmodule, that
1115 // contributed to this digit.
1116 // Float_t *charge Floating point array of the signals contributed
1117 // to this digit by each track.
1124 Error("AddSimDigit","fDetTypeSim is 0!");
1127 fDetTypeSim->AddSimDigit(branch,phys,digits,tracks,hits,charges,sigexpanded);
1130 //______________________________________________________________________
1131 void AliITS::Digits2Raw(){
1132 // convert digits of the current event to raw data
1135 Error("Digits2Raw","fDetTypeSim is 0!");
1138 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
1140 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
1141 fDetTypeSim->GetLoader()->LoadDigits();
1142 TTree* digits = fDetTypeSim->GetLoader()->TreeD();
1144 Error("Digits2Raw", "no digits tree");
1147 fDetTypeSim->SetTreeAddressD(digits,(Char_t*)GetName());
1149 // Get the FO signals for this event
1150 AliITSFOSignalsSPD* foSignals = NULL;
1151 AliRunLoader* runLoader = AliRunLoader::Instance();
1152 AliITSLoader* itsLoader = (AliITSLoader*) runLoader->GetLoader("ITSLoader");
1154 AliError("ITS loader is NULL.");
1157 if(!itsLoader->TreeD()) AliError(" !!! No TreeD available !!!");
1158 foSignals = (AliITSFOSignalsSPD*)itsLoader->TreeD()->GetUserInfo()->FindObject("AliITSFOSignalsSPD");
1159 if(!foSignals) AliError("FO signals not retrieved");
1162 Bool_t deleteFOsignalsLater = kFALSE;
1164 AliError("FO signals not available. No FO bits will be written.");
1165 foSignals = new AliITSFOSignalsSPD(); // make a temporary dummy signals object
1166 deleteFOsignalsLater = kTRUE;
1170 AliITSDDLModuleMapSDD* ddlsdd=fDetTypeSim->GetDDLModuleMapSDD();
1171 Char_t rawSDD=fDetTypeSim->GetSimuParam()->GetSDDRawDataFormat();
1172 AliITSDDLRawData rawWriter;
1174 rawWriter.SetSDDRawFormat(rawSDD);
1178 // 2: txt files with digits
1179 //BE CAREFUL, verbose level 2 MUST be used only for debugging and
1180 //it is highly suggested to use this mode only for debugging digits files
1181 //reasonably small, because otherwise the size of the txt files can reach
1182 //quickly several MB wasting time and disk space.
1183 rawWriter.SetVerbose(0);
1185 //SILICON PIXEL DETECTOR
1186 AliDebug(1,"Formatting raw data for SPD");
1187 rawWriter.RawDataSPD(digits->GetBranch("ITSDigitsSPD"),foSignals);
1188 if(deleteFOsignalsLater) delete foSignals;
1190 //SILICON DRIFT DETECTOR
1191 AliDebug(1,Form("Formatting raw data for SDD - Format code =%d",rawSDD));
1192 rawWriter.RawDataSDD(digits->GetBranch("ITSDigitsSDD"),ddlsdd);
1194 //SILICON STRIP DETECTOR
1195 AliDebug(1,"Formatting raw data for SSD");
1196 rawWriter.RawDataSSD(digits->GetBranch("ITSDigitsSSD"));
1198 fLoader->UnloadDigits();
1200 //______________________________________________________________________
1201 AliLoader* AliITS::MakeLoader(const char* topfoldername){
1202 //builds ITSgetter (AliLoader type)
1203 //if detector wants to use castomized getter, it must overload this method
1205 AliDebug(1,Form("Creating AliITSLoader. Top folder is %s.",
1207 fLoader = new AliITSLoader(GetName(),topfoldername);
1210 //______________________________________________________________________
1211 Bool_t AliITS::Raw2SDigits(AliRawReader* rawReader)
1214 // Converts RAW data to SDigits
1219 Int_t size = AliITSgeomTGeo::GetNModules();
1221 fModA = new TClonesArray*[size];
1222 for (Int_t mod = 0; mod < size; mod++) fModA[mod] = new TClonesArray("AliITSpListItem", 10000);
1224 AliLoader* loader = (AliRunLoader::Instance())->GetLoader("ITSLoader");
1226 Error("Open","Can not get ITS loader from Run Loader");
1231 tree = loader->TreeS();
1233 loader->MakeTree("S");
1234 tree = loader->TreeS();
1237 // Array for SDigits
1240 fpSDigits = new TClonesArray("AliITSpListItem",10000);
1242 TClonesArray& aSDigits = *fpSDigits;
1243 Int_t bufsize = 32000;
1244 tree->Branch("ITS", &fpSDigits, bufsize);
1249 AliITSsegmentationSPD* segSPD = (AliITSsegmentationSPD*) fDetTypeSim->GetSegmentationModel(0);
1251 AliWarning("Set AliITS defaults");
1253 segSPD = (AliITSsegmentationSPD*) fDetTypeSim->GetSegmentationModel(0);
1255 npx = segSPD->Npx();
1256 Double_t thr, sigma;
1258 AliITSRawStreamSPD inputSPD(rawReader);
1260 Bool_t next = inputSPD.Next();
1263 Int_t module = inputSPD.GetModuleID();
1264 Int_t column = inputSPD.GetColumn();
1265 Int_t row = inputSPD.GetRow();
1266 Int_t index = npx * column + row;
1268 if (module >= size) continue;
1270 last = (fModA[module])->GetEntries();
1271 TClonesArray& dum = *fModA[module];
1272 fDetTypeSim->GetSimuParam()->SPDThresholds(module,thr,sigma);
1274 new (dum[last]) AliITSpListItem(-1, -1, module, index, thr);
1281 AliITSsegmentationSDD* segSDD = (AliITSsegmentationSDD*) fDetTypeSim->GetSegmentationModel(1);
1282 npx = segSDD->Npx();
1283 Int_t scalef=AliITSsimulationSDD::ScaleFourier(segSDD);
1284 Int_t firstSDD=AliITSgeomTGeo::GetModuleIndex(3,1,1);
1285 Int_t firstSSD=AliITSgeomTGeo::GetModuleIndex(5,1,1);
1287 AliITSRawStream* inputSDD=AliITSRawStreamSDD::CreateRawStreamSDD(rawReader);
1288 for(Int_t iMod=firstSDD; iMod<firstSSD; iMod++){
1289 AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)fDetTypeSim->GetCalibrationModel(iMod);
1290 Bool_t isZeroSupp=cal->GetZeroSupp();
1292 for(Int_t iSid=0; iSid<2; iSid++) inputSDD->SetZeroSuppLowThreshold(iMod-firstSDD,iSid,cal->GetZSLowThreshold(iSid));
1294 for(Int_t iSid=0; iSid<2; iSid++) inputSDD->SetZeroSuppLowThreshold(iMod-firstSDD,iSid,0);
1298 AliITSDDLModuleMapSDD* ddlmap=fDetTypeSim->GetDDLModuleMapSDD();
1299 inputSDD->SetDDLModuleMap(ddlmap);
1300 while(inputSDD->Next()){
1301 if(inputSDD->IsCompletedModule()==kFALSE &&
1302 inputSDD->IsCompletedDDL()==kFALSE){
1304 Int_t module = inputSDD->GetModuleID();
1305 Int_t anode = inputSDD->GetCoord1()+segSDD->NpzHalf()*inputSDD->GetChannel();
1306 Int_t time = inputSDD->GetCoord2();
1307 Int_t signal10 = inputSDD->GetSignal();
1308 Int_t index = AliITSpList::GetIndex(anode,time,scalef*npx);
1310 if (module >= size) continue;
1311 last = fModA[module]->GetEntries();
1312 TClonesArray& dum = *fModA[module];
1313 new (dum[last]) AliITSpListItem(-1, -1, module, index, Double_t(signal10));
1314 ((AliITSpListItem*) dum.At(last))->AddSignalAfterElect(module, index, Double_t(signal10));
1323 AliITSsegmentationSSD* segSSD = (AliITSsegmentationSSD*) fDetTypeSim->GetSegmentationModel(2);
1324 npx = segSSD->Npx();
1325 AliITSRawStreamSSD inputSSD(rawReader);
1327 Bool_t next = inputSSD.Next();
1330 Int_t module = inputSSD.GetModuleID();
1331 if(module<0)AliError(Form("Invalid SSD module %d \n",module));
1332 if(module<0)continue;
1333 Int_t side = inputSSD.GetSideFlag();
1334 Int_t strip = inputSSD.GetStrip();
1335 Int_t signal = inputSSD.GetSignal();
1336 Int_t index = npx * side + strip;
1338 if (module >= size) continue;
1340 last = fModA[module]->GetEntries();
1341 TClonesArray& dum = *fModA[module];
1342 new (dum[last]) AliITSpListItem(-1, -1, module, index, Double_t(signal));
1345 AliITSpListItem* sdig = 0;
1347 Int_t firstssd = GetITSgeom()->GetStartDet(kSSD);
1348 Double_t adcToEv = 1.;
1349 for (Int_t mod = 0; mod < size; mod++)
1352 AliITSCalibrationSSD* calssd = (AliITSCalibrationSSD*)fDetTypeSim->GetCalibrationModel(mod);
1353 adcToEv = 1./calssd->GetSSDDEvToADC(1.);
1355 Int_t nsdig = fModA[mod]->GetEntries();
1356 for (Int_t ie = 0; ie < nsdig; ie++) {
1357 sdig = (AliITSpListItem*) (fModA[mod]->At(ie));
1358 Double_t digsig = sdig->GetSignal();
1359 if(mod>=firstssd) digsig*=adcToEv; // for SSD: convert back charge from ADC to electron
1360 new (aSDigits[ie]) AliITSpListItem(-1, -1, mod, sdig->GetIndex(), digsig);
1361 Float_t sig = sdig->GetSignalAfterElect();
1362 if(mod>=firstssd) sig*=adcToEv;
1364 sdig = (AliITSpListItem*)aSDigits[ie];
1365 sdig->AddSignalAfterElect(mod, sdig->GetIndex(), Double_t(sig));
1371 fModA[mod]->Clear();
1373 loader->WriteSDigits("OVERWRITE");
1377 //______________________________________________________________________
1378 void AliITS::UpdateInternalGeometry(){
1379 //reads new geometry from TGeo
1380 // AliDebug(1,"Delete ITSgeom and create a new one reading TGeo");
1382 AliITSVersion_t version = (AliITSVersion_t)IsVersion();
1384 if(version==kvPPRasymmFMD) minor=2; // default minor version for this geom.
1385 AliITSInitGeometry initgeom;
1386 AliITSgeom* geom = initgeom.CreateAliITSgeom(version,minor);
1389 //______________________________________________________________________
1390 AliTriggerDetector* AliITS::CreateTriggerDetector() const {
1391 // create an AliITSTrigger object (and set trigger conditions as input)
1392 return new AliITSTrigger(fDetTypeSim->GetTriggerConditions());