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>
76 #include "AliDetector.h"
78 #include "AliITSDetTypeSim.h"
79 #include "AliITSDDLRawData.h"
80 #include "AliITSLoader.h"
81 #include "AliITShit.h"
82 #include "AliITSmodule.h"
83 #include "AliITSpListItem.h"
84 #include "AliITSsimulation.h"
85 #include "AliITSsimulationFastPoints.h"
87 #include "AliITSDigitizer.h"
88 #include "AliITSRecPoint.h"
89 #include "AliITSsegmentationSPD.h"
90 #include "AliITSsegmentationSDD.h"
91 #include "AliITSsimulationSDD.h"
92 #include "AliITSCalibrationSDD.h"
93 #include "AliITSCalibrationSSD.h"
94 #include "AliITSsegmentationSSD.h"
95 #include "AliITSRawStreamSPD.h"
96 #include "AliITSRawStreamSSD.h"
97 #include "AliITSRawStreamSDD.h"
98 #include "AliRawReader.h"
101 #include "AliITSInitGeometry.h"
102 #include "AliITSFOSignalsSPD.h"
106 //______________________________________________________________________
107 AliITS::AliITS() : AliDetector(),
120 // Default initializer for ITS
121 // The default constructor of the AliITS class. In addition to
122 // creating the AliITS class it zeros the variables fIshunt (a member
123 // of AliDetector class), fEuclidOut, and fIdN, and zeros the pointers
124 // fIdSens, and fIdName. The AliDetector default constructor
127 // SetDetectors(); // default to fOpt="All". This variable not written out.
128 //PH SetMarkerColor(kRed);
129 for (int i=fgkNTYPES;i--;) fkRawID2ClusID[i] = 0;
131 //______________________________________________________________________
132 AliITS::AliITS(const Char_t *title):
133 AliDetector("ITS",title),
146 // The standard Constructor for the ITS class.
147 // It also zeros the variables
148 // fIshunt (a member of AliDetector class), fEuclidOut, and zeros
149 // the pointers fIdSens and fIdName. To help in displaying hits via the
150 // ROOT macro display.C AliITS also sets the marker color to red. The
151 // variables passes with this constructor, const char *name and *title,
152 // are used by the constructor of AliDetector class. See AliDetector
153 // class for a description of these parameters and its constructor
156 // Char_t *title Simulation title for the ITS
162 fHits = new TClonesArray("AliITShit",1560); // from AliDetector
163 if(gAlice->GetMCApp()) gAlice->GetMCApp()->AddHitList(fHits);
164 //fNhits=0; //done in AliDetector(name,title)
165 SetDetectors(); // default to fOpt="All". This variable not written out.
166 fDetTypeSim = new AliITSDetTypeSim();
167 //PH SetMarkerColor(kRed);
168 if(!fLoader) MakeLoader(AliConfig::GetDefaultEventFolderName());
169 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
170 for (int i=fgkNTYPES;i--;) fkRawID2ClusID[i] = 0;
172 //______________________________________________________________________
173 AliITS::AliITS(const char *name, const char *title):
174 AliDetector(name,title),
187 // The standard Constructor for the ITS class.
188 // It also zeros the variables
189 // fIshunt (a member of AliDetector class), fEuclidOut, and zeros
190 // the pointers fIdSens and fIdName. To help in displaying hits via the
191 // ROOT macro display.C AliITS also sets the marker color to red. The
192 // variables passes with this constructor, const char *name and *title,
193 // are used by the constructor of AliDetector class. See AliDetector
194 // class for a description of these parameters and its constructor
197 fHits = new TClonesArray("AliITShit",1560);
198 if(gAlice->GetMCApp()) gAlice->GetMCApp()->AddHitList(fHits);
199 //fNhits=0; //done in AliDetector(name,title)
201 SetDetectors(); // default to fOpt="All". This variable not written out.
203 fDetTypeSim = new AliITSDetTypeSim();
204 //PH SetMarkerColor(kRed);
205 if(!fLoader) MakeLoader(AliConfig::GetDefaultEventFolderName());
206 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
207 for (int i=fgkNTYPES;i--;) fkRawID2ClusID[i] = 0;
209 //______________________________________________________________________
211 // Default destructor for ITS.
212 // The default destructor of the AliITS class. In addition to deleting
213 // the AliITS class it deletes the memory pointed to by
214 // fIdSens, fIdName, fDetTypeSim and it's contents.
228 this->ClearModules();
231 }// end if fITSmodules!=0
233 delete[] fIdName; // Array of TStrings
235 Int_t size = AliITSgeomTGeo::GetNModules();
246 for(Int_t j=0; j<size; j++){
259 //______________________________________________________________________
260 AliDigitizer* AliITS::CreateDigitizer(AliDigitizationInput* digInput)const{
261 // Creates the AliITSDigitizer in a standard way for use via AliModule.
262 // This function can not be included in the .h file because of problems
263 // with the order of inclusion (recursive).
265 // AliDigitizationInput* digInput The Manger class for Digitization
269 // A new AliITSRunDigitizer (cast as a AliDigitizer).
271 return new AliITSDigitizer(digInput);
273 //______________________________________________________________________
275 // Initializer ITS after it has been built
276 // This routine initializes the AliITS class. It is intended to be
277 // called from the Init function in AliITSv?. Besides displaying a banner
278 // indicating that it has been called it initializes the array fIdSens
279 // and sets the default segmentation, response, digit and raw cluster
280 // classes therefore it should be called after a call to CreateGeometry.
289 if(gMC) for(i=0;i<fIdN;i++) fIdSens[i] = gMC->VolId(fIdName[i]);
292 //______________________________________________________________________
293 void AliITS::SetDefaults(){
294 // sets the default segmentation, response, digit and raw cluster classes.
301 AliInfoClass("AliITS::Setting Defaults");
303 Error("SetDefaults()","fDetTypeSim is 0!");
307 fDetTypeSim->SetDefaults();
308 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
311 //______________________________________________________________________
312 void AliITS::SetDefaultSimulation(){
313 // sets the default simulation.
321 Error("SetDefaultSimulation()","fDetTypeSim is 0!");
325 fDetTypeSim->SetDefaultSimulation();
326 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
331 //______________________________________________________________________
332 void AliITS::MakeBranch(Option_t* option){
333 // Creates Tree branches for the ITS.
335 // Option_t *option String of Tree types S,D, and/or R.
336 // const char *file String of the file name where these branches
337 // are to be stored. If blank then these branches
338 // are written to the same tree as the Hits were
345 Error("MakeBranch","fDetTypeSim is 0!");
349 Bool_t cH = (strstr(option,"H")!=0);
350 Bool_t cS = (strstr(option,"S")!=0);
351 Bool_t cD = (strstr(option,"D")!=0);
353 if(cH && (fHits == 0x0)) fHits = new TClonesArray("AliITShit", 1560);
354 AliDetector::MakeBranch(option);
356 if(cS) MakeBranchS(0);
357 if(cD) MakeBranchD(0);
361 //___________________________________________________________________
362 void AliITS::MakeBranchS(const char* fl){
364 // Creates Tree Branch for the ITS summable digits.
366 // cont char *fl File name where SDigits branch is to be written
367 // to. If blank it write the SDigits to the same
368 // file in which the Hits were found.
372 Error("MakeBranchS","fDetTypeSim is 0!");
374 Int_t buffersize = 4000;
377 // only one branch for SDigits.
378 snprintf(branchname,30,"%s",GetName());
380 if(fLoader->TreeS()){
381 TClonesArray* sdig = (TClonesArray*)fDetTypeSim->GetSDigits();
382 MakeBranchInTree(fLoader->TreeS(),branchname,&sdig,buffersize,fl);
385 //______________________________________________________________________
386 void AliITS::MakeBranchD(const char* file){
388 //Make branch for digits
390 Warning("MakeBranchD","fDetTypeSim is 0!");
393 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
394 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
395 MakeBranchInTreeD(fLoader->TreeD(),file);
398 //___________________________________________________________________
399 void AliITS:: MakeBranchInTreeD(TTree* treeD, const char* file){
400 // Creates Tree branches for the ITS.
403 Error("MakeBranchS","fDetTypeSim is 0!");
405 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
406 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
408 const Char_t *det[3] = {"SPD","SDD","SSD"};
409 const Char_t* digclass;
410 Int_t buffersize = 4000;
411 Char_t branchname[31];
413 if(!fDetTypeSim->GetDigits()){
414 fDetTypeSim->SetDigits(new TObjArray(fgkNTYPES));
416 for(Int_t i=0;i<fgkNTYPES;i++){
417 digclass = fDetTypeSim->GetDigitClassName(i);
418 TString classn = digclass;
419 if(!((fDetTypeSim->GetDigits())->At(i))){
420 (fDetTypeSim->GetDigits())->AddAt(new TClonesArray(classn.Data(),1000),i);
423 if(fgkNTYPES==3) snprintf(branchname,30,"%sDigits%s",GetName(),det[i]);
424 else sprintf(branchname,"%sDigits%d",GetName(),i+1);
425 TObjArray* dig = DigitsAddress(i);
426 if(GetDigits() && treeD) AliDetector::MakeBranchInTree(treeD,branchname, &dig,buffersize,file);
430 //______________________________________________________________________
431 void AliITS::SetTreeAddress(){
432 // Set branch address for the Trees.
441 Error("SetTreeAddress","fDetTypeSim is 0!");
445 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
446 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
448 TTree *treeS = fLoader->TreeS();
449 TTree *treeD = fLoader->TreeD();
450 if (fLoader->TreeH() && (fHits == 0x0)) {
451 fHits = new TClonesArray("AliITShit", 1560);
453 AliDetector::SetTreeAddress();
455 fDetTypeSim->SetTreeAddressS(treeS, (Char_t*)GetName());
456 fDetTypeSim->SetTreeAddressD(treeD, (Char_t*)GetName());
458 //______________________________________________________________________
459 void AliITS::AddHit(Int_t track, Int_t *vol, Float_t *hits){
461 // The function to add information to the AliITShit class. See the
462 // AliITShit class for a full description. This function allocates the
463 // necessary new space for the hit information and passes the variable
464 // track, and the pointers *vol and *hits to the AliITShit constructor
467 // Int_t track Track number which produced this hit.
468 // Int_t *vol Array of Integer Hit information. See AliITShit.h
469 // Float_t *hits Array of Floating Hit information. see AliITShit.h
474 TClonesArray &lhits = *fHits;
475 new(lhits[fNhits++]) AliITShit(fIshunt,track,vol,hits);
478 //______________________________________________________________________
479 void AliITS::FillModules(Int_t /* evnt */,Int_t bgrev,Int_t /* nmodules */,
480 Option_t *option, const char *filename){
481 // fill the modules with the sorted by module hits; add hits from
482 // background if option=Add.
484 static TTree *trH1; //Tree with background hits
485 static Bool_t first=kTRUE;
487 const char *addBgr = strstr(option,"Add");
491 file=new TFile(filename);
496 // Get Hits Tree header from file
497 if(trH1) delete trH1;
501 snprintf(treeName,20,"TreeH%d",bgrev);
502 trH1 = (TTree*)gDirectory->Get(treeName);
504 Error("FillModules","cannot find Hits Tree for event:%d",bgrev);
506 // Set branch addresses
509 FillModules(fLoader->TreeH(),0); // fill from this file's tree.
512 FillModules(trH1,10000000); // Default mask 10M.
513 TTree *fAli=fLoader->GetRunLoader()->TreeK();
516 fileAli =fAli->GetCurrentFile();
523 //______________________________________________________________________
524 void AliITS::FillModules(TTree *treeH, Int_t mask) {
525 // fill the modules with the sorted by module hits;
526 // can be called many times to do a merging
528 // TTree *treeH The tree containing the hits to be copied into
530 // Int_t mask The track number mask to indecate which file
531 // this hits came from.
539 AliError("Tree H is NULL");
542 Int_t lay,lad,det,index;
546 snprintf(branchname,20,"%s",GetName());
547 TBranch *branch = treeH->GetBranch(branchname);
549 Error("FillModules","%s branch in TreeH not found",branchname);
552 branch->SetAddress(&fHits);
553 Int_t nTracks =(Int_t) treeH->GetEntries();
555 for(iPrimTrack=0; iPrimTrack<nTracks; iPrimTrack++){
557 Int_t nBytes = treeH->GetEvent(iPrimTrack);
558 if (nBytes <= 0) continue;
559 Int_t nHits = fHits->GetEntriesFast();
560 for(h=0; h<nHits; h++){
561 itsHit = (AliITShit *)fHits->UncheckedAt(h);
562 itsHit->GetDetectorID(lay,lad,det);
564 index = GetITSgeom()->GetModuleIndex(lay,lad,det);
566 index=det-1; // This should not be used.
567 } // end if [You must have fITSgeom for this to work!]
568 mod = GetModule(index);
569 itsHit->SetTrack(itsHit->GetTrack()+mask); // Set track mask.
570 mod->AddHit(itsHit,iPrimTrack,h);
571 } // end loop over hits
572 } // end loop over tracks
575 //______________________________________________________________________
576 Bool_t AliITS::InitModules(Int_t size,Int_t &nmodules){
577 // Initialize the modules array.
579 // Int_t size Size of array of the number of modules to be
580 // created. If size <=0 then the number of modules
581 // is gotten from AliITSgeom class kept in fITSgeom.
583 // Int_t &nmodules The number of modules existing.
588 fITSmodules->Delete();
590 } // end fir fITSmoudles
593 Error("InitModules","fDetTypeSim is null!");
596 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
598 Int_t nl,indexMAX,index;
600 if(size<=0){ // default to using data stored in AliITSgeom
601 if(fDetTypeSim->GetITSgeom()==0) {
602 Error("InitModules","fITSgeom not defined");
604 } // end if fITSgeom==0
605 nl = fDetTypeSim->GetITSgeom()->GetNlayers();
606 indexMAX = fDetTypeSim->GetITSgeom()->GetIndexMax();
608 fITSmodules = new TObjArray(indexMAX);
609 for(index=0;index<indexMAX;index++){
610 fITSmodules->AddAt( new AliITSmodule(index),index);
613 fITSmodules = new TObjArray(size);
614 for(index=0;index<size;index++) {
615 fITSmodules->AddAt( new AliITSmodule(index),index);
622 //______________________________________________________________________
623 void AliITS::Hits2SDigits(){
624 // Standard Hits to summable Digits function.
632 Error("Hits2SDigits","fDetTypeSim is null!");
637 fLoader->LoadHits("read");
638 fLoader->LoadSDigits("recreate");
639 AliRunLoader* rl = fLoader->GetRunLoader();
640 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
641 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
643 for (Int_t iEvent = 0; iEvent < rl->GetNumberOfEvents(); iEvent++) {
644 // Do the Hits to Digits operation. Use Standard input values.
645 // Event number from file, no background hit merging , use size from
646 // AliITSgeom class, option="All", input from this file only.
647 rl->GetEvent(iEvent);
648 if (!fLoader->TreeS()) fLoader->MakeTree("S");
651 HitsToPreDigits(iEvent,0,-1," ",fOpt," ");
654 fLoader->UnloadHits();
655 fLoader->UnloadSDigits();
658 //______________________________________________________________________
659 void AliITS::Hits2Digits(){
661 //Conversion from hits to digits
663 Error("Hits2SDigits","fDetTypeSim is 0!");
667 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
668 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
671 fLoader->LoadHits("read");
672 fLoader->LoadDigits("recreate");
673 AliRunLoader* rl = fLoader->GetRunLoader();
674 for (Int_t iEvent = 0; iEvent < rl->GetNumberOfEvents(); iEvent++) {
675 rl->GetEvent(iEvent);
676 if (!fLoader->TreeD()) fLoader->MakeTree("D");
679 HitsToDigits(iEvent,0,-1," ",fOpt," ");
682 fLoader->UnloadHits();
683 fLoader->UnloadDigits();
687 //______________________________________________________________________
688 void AliITS::HitsToDigits(Int_t evNumber,Int_t bgrev,Int_t size,
689 Option_t *option,Option_t *opt,
690 const char *filename){
691 // Keep galice.root for signal and name differently the file for
692 // background when add! otherwise the track info for signal will be lost !
693 // the condition below will disappear when the geom class will be
694 // initialized for all versions - for the moment it is only for v5 !
695 // 7 is the SDD beam test version.
697 // Int_t evnt Event to be processed.
698 // Int_t bgrev Background Hit tree number.
699 // Int_t nmodules Not used.
700 // Option_t *option String indicating if merging hits or not. To
701 // merge hits set equal to "Add". Otherwise no
702 // background hits are considered.
703 // Test_t *filename File name containing the background hits..
710 Error("HitsToDigits","fDetTypeSim is null!");
713 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
714 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
715 if(!GetITSgeom()) return; // need transformations to do digitization.
716 AliITSgeom *geom = GetITSgeom();
718 const char *all = strstr(opt,"All");
719 const char *det[3] = {strstr(opt,"SPD"),strstr(opt,"SDD"),
721 static Bool_t setDef=kTRUE;
722 if (setDef) SetDefaultSimulation();
726 InitModules(size,nmodules);
727 FillModules(evNumber,bgrev,nmodules,option,filename);
729 // Reset Fast-OR signals for this event
730 fDetTypeSim->ResetFOSignals();
732 AliITSsimulation *sim = 0;
733 AliITSmodule *mod = 0;
735 for(Int_t module=0;module<geom->GetIndexMax();module++){
736 id = geom->GetModuleType(module);
737 if (!all && !det[id]) continue;
738 sim = (AliITSsimulation*)fDetTypeSim->GetSimulationModel(id);
740 Error("HitsToDigits","The simulation class was not "
741 "instanciated for module %d type %s!",module,
742 geom->GetModuleTypeName(module));
745 mod = (AliITSmodule *)fITSmodules->At(module);
746 sim->DigitiseModule(mod,module,evNumber);
747 // fills all branches - wasted disk space
748 fLoader->TreeD()->Fill();
754 // Add Fast-OR signals to event (only one object per event)
755 if (all || det[0]) { // SPD present
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!");
1010 const char *all = strstr(opt,"All");
1011 const char *det[3] ={strstr(opt,"SPD"),strstr(opt,"SDD"),
1014 // Reset Fast-OR signals for this event
1015 fDetTypeSim->ResetFOSignals();
1017 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
1019 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
1020 fDetTypeSim->SDigitsToDigits(opt,(Char_t*)GetName());
1022 // Add Fast-OR signals to event (only one object per event)
1023 if (all || det[0]) { // SPD present
1028 //______________________________________________________________________
1029 void AliITS::ResetDigits(){
1030 // Reset number of digits and the digits array for the ITS detector.
1036 Error("ResetDigits","fDetTypeSim is 0!");
1040 fDetTypeSim->ResetDigits();
1044 //______________________________________________________________________
1045 void AliITS::ResetDigits(Int_t branch){
1046 // Reset number of digits and the digits array for this branch.
1053 Error("ResetDigits","fDetTypeSim is 0!");
1057 fDetTypeSim->ResetDigits(branch);
1060 //______________________________________________________________________
1061 void AliITS::AddSumDigit(AliITSpListItem &sdig){
1062 // Adds the a module full of summable digits to the summable digits tree.
1064 // AliITSpListItem &sdig SDigit to be added to SDigits tree.
1071 Error("AddSumDigit","fDetTypeSim is 0!");
1074 fDetTypeSim->AddSumDigit(sdig);
1077 //______________________________________________________________________
1078 void AliITS::AddSimDigit(Int_t branch, AliITSdigit *d){
1079 // Add a simulated digit.
1081 // Int_t id Detector type number.
1082 // AliITSdigit *d Digit to be added to the Digits Tree. See
1090 Error("AddSimDigit","fDetTypeSim is 0!");
1093 fDetTypeSim->AddSimDigit(branch,d);
1096 //______________________________________________________________________
1097 void AliITS::AddSimDigit(Int_t branch,Float_t phys,Int_t *digits,Int_t *tracks,
1098 Int_t *hits,Float_t *charges, Int_t sigexpanded){
1099 // Add a simulated digit to the list.
1101 // Int_t id Detector type number.
1102 // Float_t phys Physics indicator. See AliITSdigits.h
1103 // Int_t *digits Integer array containing the digits info. See
1105 // Int_t *tracks Integer array [AliITSdigitS?D::GetNTracks()]
1106 // containing the track numbers that contributed to
1108 // Int_t *hits Integer array [AliITSdigitS?D::GetNTracks()]
1109 // containing the hit numbers, from AliITSmodule, that
1110 // contributed to this digit.
1111 // Float_t *charge Floating point array of the signals contributed
1112 // to this digit by each track.
1119 Error("AddSimDigit","fDetTypeSim is 0!");
1122 fDetTypeSim->AddSimDigit(branch,phys,digits,tracks,hits,charges,sigexpanded);
1125 //______________________________________________________________________
1126 void AliITS::Digits2Raw(){
1127 // convert digits of the current event to raw data
1130 Error("Digits2Raw","fDetTypeSim is 0!");
1133 fDetTypeSim->SetLoader((AliITSLoader*)fLoader);
1135 if(fSimuParam) fDetTypeSim->SetSimuParam(fSimuParam);
1136 fDetTypeSim->GetLoader()->LoadDigits();
1137 TTree* digits = fDetTypeSim->GetLoader()->TreeD();
1139 Error("Digits2Raw", "no digits tree");
1142 fDetTypeSim->SetTreeAddressD(digits,(Char_t*)GetName());
1144 // Get the FO signals for this event
1145 AliITSFOSignalsSPD* foSignals = NULL;
1146 AliRunLoader* runLoader = AliRunLoader::Instance();
1147 AliITSLoader* itsLoader = (AliITSLoader*) runLoader->GetLoader("ITSLoader");
1149 AliError("ITS loader is NULL.");
1152 if(!itsLoader->TreeD()) AliError(" !!! No TreeD available !!!");
1153 foSignals = (AliITSFOSignalsSPD*)itsLoader->TreeD()->GetUserInfo()->FindObject("AliITSFOSignalsSPD");
1154 if(!foSignals) AliError("FO signals not retrieved");
1157 Bool_t deleteFOsignalsLater = kFALSE;
1159 AliError("FO signals not available. No FO bits will be written.");
1160 foSignals = new AliITSFOSignalsSPD(); // make a temporary dummy signals object
1161 deleteFOsignalsLater = kTRUE;
1165 AliITSDDLModuleMapSDD* ddlsdd=fDetTypeSim->GetDDLModuleMapSDD();
1166 Char_t rawSDD=fDetTypeSim->GetSimuParam()->GetSDDRawDataFormat();
1167 AliITSDDLRawData rawWriter;
1169 rawWriter.SetSDDRawFormat(rawSDD);
1173 // 2: txt files with digits
1174 //BE CAREFUL, verbose level 2 MUST be used only for debugging and
1175 //it is highly suggested to use this mode only for debugging digits files
1176 //reasonably small, because otherwise the size of the txt files can reach
1177 //quickly several MB wasting time and disk space.
1178 rawWriter.SetVerbose(0);
1180 //SILICON PIXEL DETECTOR
1181 AliDebug(1,"Formatting raw data for SPD");
1182 rawWriter.RawDataSPD(digits->GetBranch("ITSDigitsSPD"),foSignals);
1183 if(deleteFOsignalsLater) delete foSignals;
1185 //SILICON DRIFT DETECTOR
1186 AliDebug(1,Form("Formatting raw data for SDD - Format code =%d",rawSDD));
1187 rawWriter.RawDataSDD(digits->GetBranch("ITSDigitsSDD"),ddlsdd);
1189 //SILICON STRIP DETECTOR
1190 AliDebug(1,"Formatting raw data for SSD");
1191 rawWriter.RawDataSSD(digits->GetBranch("ITSDigitsSSD"));
1193 fLoader->UnloadDigits();
1195 //______________________________________________________________________
1196 AliLoader* AliITS::MakeLoader(const char* topfoldername){
1197 //builds ITSgetter (AliLoader type)
1198 //if detector wants to use castomized getter, it must overload this method
1200 AliDebug(1,Form("Creating AliITSLoader. Top folder is %s.",
1202 fLoader = new AliITSLoader(GetName(),topfoldername);
1205 //______________________________________________________________________
1206 Bool_t AliITS::Raw2SDigits(AliRawReader* rawReader)
1209 // Converts RAW data to SDigits
1214 Int_t size = AliITSgeomTGeo::GetNModules();
1216 fModA = new TClonesArray*[size];
1217 for (Int_t mod = 0; mod < size; mod++) fModA[mod] = new TClonesArray("AliITSpListItem", 10000);
1219 AliLoader* loader = (AliRunLoader::Instance())->GetLoader("ITSLoader");
1221 Error("Open","Can not get ITS loader from Run Loader");
1226 tree = loader->TreeS();
1228 loader->MakeTree("S");
1229 tree = loader->TreeS();
1232 // Array for SDigits
1235 fpSDigits = new TClonesArray("AliITSpListItem",10000);
1237 TClonesArray& aSDigits = *fpSDigits;
1238 Int_t bufsize = 32000;
1239 tree->Branch("ITS", &fpSDigits, bufsize);
1244 AliITSsegmentationSPD* segSPD = (AliITSsegmentationSPD*) fDetTypeSim->GetSegmentationModel(0);
1246 AliWarning("Set AliITS defaults");
1248 segSPD = (AliITSsegmentationSPD*) fDetTypeSim->GetSegmentationModel(0);
1250 npx = segSPD->Npx();
1251 Double_t thr, sigma;
1253 Int_t countRW = -1; // RS counter for raw -> cluster ID's (used in embedding)
1254 const TArrayI* rawID2clusID = fkRawID2ClusID[kSPD];
1255 AliITSRawStreamSPD inputSPD(rawReader);
1257 Bool_t next = inputSPD.Next();
1261 Int_t module = inputSPD.GetModuleID();
1262 Int_t column = inputSPD.GetColumn();
1263 Int_t row = inputSPD.GetRow();
1264 Int_t index = npx * column + row;
1266 if (module >= size) continue;
1268 last = (fModA[module])->GetEntries();
1269 TClonesArray& dum = *fModA[module];
1270 fDetTypeSim->GetSimuParam()->SPDThresholds(module,thr,sigma);
1272 int label = kMaxLabel;
1273 if (rawID2clusID) { // RS If the raw->cluster ID is set (filled by cluster finder) store cluster ID's in SDigits
1274 if (rawID2clusID->GetSize()<=countRW) {AliError(Form("The buffer of rawSPD to clusSPD ID's is shorter than current rawSPD ID=%d",countRW));}
1275 else label = (*rawID2clusID)[countRW];
1277 new (dum[last]) AliITSpListItem(label, -1, module, index, thr);
1284 AliITSsegmentationSDD* segSDD = (AliITSsegmentationSDD*) fDetTypeSim->GetSegmentationModel(1);
1285 npx = segSDD->Npx();
1286 Int_t scalef=AliITSsimulationSDD::ScaleFourier(segSDD);
1287 Int_t firstSDD=AliITSgeomTGeo::GetModuleIndex(3,1,1);
1288 Int_t firstSSD=AliITSgeomTGeo::GetModuleIndex(5,1,1);
1291 rawID2clusID = fkRawID2ClusID[kSDD];
1292 AliITSRawStream* inputSDD=AliITSRawStreamSDD::CreateRawStreamSDD(rawReader);
1293 for(Int_t iMod=firstSDD; iMod<firstSSD; iMod++){
1294 AliITSCalibrationSDD* cal = (AliITSCalibrationSDD*)fDetTypeSim->GetCalibrationModel(iMod);
1295 Bool_t isZeroSupp=cal->GetZeroSupp();
1297 for(Int_t iSid=0; iSid<2; iSid++) inputSDD->SetZeroSuppLowThreshold(iMod-firstSDD,iSid,cal->GetZSLowThreshold(iSid));
1299 for(Int_t iSid=0; iSid<2; iSid++) inputSDD->SetZeroSuppLowThreshold(iMod-firstSDD,iSid,0);
1303 AliITSDDLModuleMapSDD* ddlmap=fDetTypeSim->GetDDLModuleMapSDD();
1304 inputSDD->SetDDLModuleMap(ddlmap);
1305 while(inputSDD->Next()){
1307 if(inputSDD->IsCompletedModule()==kFALSE &&
1308 inputSDD->IsCompletedDDL()==kFALSE){
1310 Int_t module = inputSDD->GetModuleID();
1311 Int_t anode = inputSDD->GetCoord1()+segSDD->NpzHalf()*inputSDD->GetChannel();
1312 Int_t time = inputSDD->GetCoord2();
1313 Int_t signal10 = inputSDD->GetSignal();
1314 Int_t index = AliITSpList::GetIndex(anode,time,scalef*npx);
1316 if (module >= size) continue;
1317 last = fModA[module]->GetEntries();
1318 TClonesArray& dum = *fModA[module];
1319 int label = kMaxLabel;
1320 if (rawID2clusID) { // RS If the raw->cluster ID is set (filled by cluster finder) store cluster ID's in SDigits
1321 if (rawID2clusID->GetSize()<=countRW) {AliError(Form("The buffer of rawSDD to clusSDD ID's is shorter than current rawSDD ID=%d",countRW));}
1322 else label = (*rawID2clusID)[countRW];
1324 new (dum[last]) AliITSpListItem(label, -1, module, index, Double_t(signal10));
1325 ((AliITSpListItem*) dum.At(last))->AddSignalAfterElect(module, index, Double_t(signal10));
1334 AliITSsegmentationSSD* segSSD = (AliITSsegmentationSSD*) fDetTypeSim->GetSegmentationModel(2);
1335 npx = segSSD->Npx();
1336 AliITSRawStreamSSD inputSSD(rawReader);
1338 rawID2clusID = fkRawID2ClusID[kSSD];
1340 Bool_t next = inputSSD.Next();
1343 Int_t module = inputSSD.GetModuleID();
1344 if(module<0)AliError(Form("Invalid SSD module %d \n",module));
1345 if(module<0)continue;
1346 Int_t side = inputSSD.GetSideFlag();
1347 Int_t strip = inputSSD.GetStrip();
1348 Int_t signal = inputSSD.GetSignal();
1349 Int_t index = npx * side + strip;
1351 if (module >= size) continue;
1353 last = fModA[module]->GetEntries();
1354 TClonesArray& dum = *fModA[module];
1355 int label = kMaxLabel;
1356 if (rawID2clusID) { // RS If the raw->cluster ID is set (filled by cluster finder) store cluster ID's in SDigits
1357 if (rawID2clusID->GetSize()<=countRW) {AliError(Form("The buffer of rawSSD to clusSSD ID's is shorter than current rawSSD ID=%d",countRW));}
1358 else label = (*rawID2clusID)[countRW];
1360 new (dum[last]) AliITSpListItem(label, -1, module, index, Double_t(signal));
1363 AliITSpListItem* sdig = 0;
1365 Int_t firstssd = GetITSgeom()->GetStartDet(kSSD);
1366 Double_t adcToEv = 1.;
1367 for (Int_t mod = 0; mod < size; mod++)
1370 AliITSCalibrationSSD* calssd = (AliITSCalibrationSSD*)fDetTypeSim->GetCalibrationModel(mod);
1371 adcToEv = 1./calssd->GetSSDDEvToADC(1.);
1373 Int_t nsdig = fModA[mod]->GetEntries();
1374 for (Int_t ie = 0; ie < nsdig; ie++) {
1375 sdig = (AliITSpListItem*) (fModA[mod]->At(ie));
1376 Double_t digsig = sdig->GetSignal();
1377 if(mod>=firstssd) digsig*=adcToEv; // for SSD: convert back charge from ADC to electron
1378 new (aSDigits[ie]) AliITSpListItem(sdig->GetTrack(0), -1, mod, sdig->GetIndex(), digsig);
1379 Float_t sig = sdig->GetSignalAfterElect();
1380 if(mod>=firstssd) sig*=adcToEv;
1382 sdig = (AliITSpListItem*)aSDigits[ie];
1383 sdig->AddSignalAfterElect(mod, sdig->GetIndex(), Double_t(sig));
1389 fModA[mod]->Clear();
1391 loader->WriteSDigits("OVERWRITE");
1395 //______________________________________________________________________
1396 void AliITS::UpdateInternalGeometry(){
1397 //reads new geometry from TGeo
1398 // AliDebug(1,"Delete ITSgeom and create a new one reading TGeo");
1400 AliITSVersion_t version = (AliITSVersion_t)IsVersion();
1402 AliITSInitGeometry initgeom;
1403 AliITSgeom* geom = initgeom.CreateAliITSgeom(version,minor);
1406 //______________________________________________________________________
1407 AliTriggerDetector* AliITS::CreateTriggerDetector() const {
1408 // create an AliITSTrigger object (and set trigger conditions as input)
1409 return new AliITSTrigger(fDetTypeSim->GetTriggerConditions());
1411 //______________________________________________________________________
1412 void AliITS::WriteFOSignals(){
1413 // This method write FO signals in Digits tree both in Hits2Digits
1414 // or SDigits2Digits
1416 fDetTypeSim->ProcessNoiseForFastOr();
1417 fDetTypeSim->WriteFOSignals();