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17 @author Christian Holm Christensen <cholm@nbi.dk>
18 @date Sun Mar 26 17:59:18 2006
19 @brief Implementation of AliFMD base class
21 //____________________________________________________________________
23 // Forward Multiplicity Detector based on Silicon wafers. This class
24 // is the driver for especially simulation.
26 // The Forward Multiplicity Detector consists of 3 sub-detectors FMD1,
27 // FMD2, and FMD3, each of which has 1 or 2 rings of silicon sensors.
29 // This is the base class for all FMD manager classes.
31 // The actual code is done by various separate classes. Below is
32 // diagram showing the relationship between the various FMD classes
33 // that handles the simulation
36 // +----------+ +----------+
37 // | AliFMDv1 | | AliFMDv0 |
38 // +----------+ +----------+
39 // | | +-----------------+
40 // +----+--------------+ +--| AliFMDDigitizer |
41 // | | +-----------------+
42 // | +---------------------+ |
43 // | +--| AliFMDBaseDigitizer |<--+
44 // V 1 | +---------------------+ |
45 // +--------+<>--+ | +------------------+
46 // | AliFMD | +--| AliFMDSDigitizer |
47 // +--------+<>--+ +------------------+
48 // 1 | +---------------------+
49 // +--| AliFMDReconstructor |
50 // +---------------------+
53 // This defines the interface for the various parts of AliROOT that
54 // uses the FMD, like AliFMDSimulator, AliFMDDigitizer,
55 // AliFMDReconstructor, and so on.
58 // This is a concrete implementation of the AliFMD interface.
59 // It is the responsibility of this class to create the FMD
63 // This is a concrete implementation of the AliFMD interface.
64 // It is the responsibility of this class to create the FMD
65 // geometry, process hits in the FMD, and serve hits and digits to
66 // the various clients.
69 // This is the base class for the FMD simulation tasks. The
70 // simulator tasks are responsible to implment the geoemtry, and
73 // * AliFMDReconstructor
74 // This is a concrete implementation of the AliReconstructor that
75 // reconstructs pseudo-inclusive-multiplicities from digits (raw or
78 // Calibration and geometry parameters are managed by separate
79 // singleton managers. These are AliFMDGeometry and
80 // AliFMDParameters. Please refer to these classes for more
81 // information on these.
84 // These files are not in the same directory, so there's no reason to
85 // ask the preprocessor to search in the current directory for these
86 // files by including them with `#include "..."'
87 #include <TBrowser.h> // ROOT_TBrowser
88 #include <TClonesArray.h> // ROOT_TClonesArray
89 #include <TGeoGlobalMagField.h> // ROOT_TGeoGlobalMagField
90 #include <TGeoManager.h> // ROOT_TGeoManager
91 #include <TRotMatrix.h> // ROOT_TRotMatrix
92 #include <TTree.h> // ROOT_TTree
93 #include <TVector2.h> // ROOT_TVector2
94 #include <TVirtualMC.h> // ROOT_TVirtualMC
95 #include <cmath> // __CMATH__
97 #include <AliRunDigitizer.h> // ALIRUNDIGITIZER_H
98 #include <AliLoader.h> // ALILOADER_H
99 #include <AliRun.h> // ALIRUN_H
100 #include <AliMC.h> // ALIMC_H
101 #include <AliMagF.h> // ALIMAGF_H
102 // #include <AliLog.h> // ALILOG_H
103 #include "AliFMDDebug.h" // Better debug macros
104 #include "AliFMD.h" // ALIFMD_H
105 #include "AliFMDDigit.h" // ALIFMDDIGIT_H
106 #include "AliFMDSDigit.h" // ALIFMDSDIGIT_H
107 #include "AliFMDHit.h" // ALIFMDHIT_H
108 #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
109 #include "AliFMDDetector.h" // ALIFMDDETECTOR_H
110 #include "AliFMDRing.h" // ALIFMDRING_H
111 #include "AliFMDDigitizer.h" // ALIFMDDIGITIZER_H
112 #include "AliFMDHitDigitizer.h" // ALIFMDSDIGITIZER_H
113 // #define USE_SSDIGITIZER
114 //#ifdef USE_SSDIGITIZER
115 //# include "AliFMDSSDigitizer.h" // ALIFMDSDIGITIZER_H
117 // #include "AliFMDGeometryBuilder.h"
118 #include "AliFMDRawWriter.h" // ALIFMDRAWWRITER_H
119 #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H
120 #include "AliTrackReference.h"
121 #include "AliFMDStripIndex.h"
122 #include "AliFMDParameters.h"
123 #include "AliFMDReconstructor.h"
125 //____________________________________________________________________
128 ; // This is to keep Emacs from indenting the next line
131 //____________________________________________________________________
142 // Default constructor for class AliFMD
144 AliFMDDebug(10, ("\tDefault CTOR"));
148 fBad = new TClonesArray("AliFMDHit");
151 //____________________________________________________________________
152 AliFMD::AliFMD(const char *name, const char *title)
153 : AliDetector (name, title),
158 fUseAssembly(kFALSE),
162 // Standard constructor for Forward Multiplicity Detector
164 AliFMDDebug(10, ("\tStandard CTOR"));
165 fBad = new TClonesArray("AliFMDHit");
167 // Initialise Hit array
169 gAlice->GetMCApp()->AddHitList(fHits);
171 // (S)Digits for the detectors disk
175 // CHC: What is this?
177 //PH SetMarkerColor(kRed);
178 //PH SetLineColor(kYellow);
181 //____________________________________________________________________
184 // Destructor for base class AliFMD
208 //====================================================================
210 // GEometry ANd Traking
212 //____________________________________________________________________
214 AliFMD::CreateGeometry()
217 // Create the geometry of Forward Multiplicity Detector. The actual
218 // construction of the geometry is delegated to the class
219 // AliFMDGeometryBuilder, invoked by the singleton manager
222 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
223 fmd->SetDetailed(fDetailed);
224 fmd->UseAssembly(fUseAssembly);
228 //____________________________________________________________________
229 void AliFMD::CreateMaterials()
231 // Define the materials and tracking mediums needed by the FMD
232 // simulation. These mediums are made by sending the messages
233 // AliMaterial, AliMixture, and AliMedium to the passed AliModule
234 // object module. The defined mediums are
236 // FMD Si$ Silicon (active medium in sensors)
237 // FMD C$ Carbon fibre (support cone for FMD3 and vacuum pipe)
238 // FMD Al$ Aluminium (honeycomb support plates)
239 // FMD PCB$ Printed Circuit Board (FEE board with VA1_3)
240 // FMD Chip$ Electronics chips (currently not used)
241 // FMD Air$ Air (Air in the FMD)
242 // FMD Plastic$ Plastic (Support legs for the hybrid cards)
244 // The geometry builder should really be the one that creates the
245 // materials, but the architecture of AliROOT makes that design
246 // akward. What should happen, was that the AliFMDGeometryBuilder
247 // made the mediums, and that this class retrives pointers from the
248 // TGeoManager, and registers the mediums here. Alas, it's not
251 AliFMDDebug(10, ("\tCreating materials"));
252 // Get pointer to geometry singleton object.
253 AliFMDGeometry* geometry = AliFMDGeometry::Instance();
256 if (gGeoManager && gGeoManager->GetMedium("FMD Si$")) {
257 // We need to figure out the some stuff about the geometry
258 fmd->ExtractGeomInfo();
265 Double_t density = 0;
266 Double_t radiationLength = 0;
267 Double_t absorbtionLength = 999;
268 Int_t fieldType = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); // Field type
269 Double_t maxField = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); // Field max.
270 Double_t maxBending = 0; // Max Angle
271 Double_t maxStepSize = 0.001; // Max step size
272 Double_t maxEnergyLoss = 1; // Max Delta E
273 Double_t precision = 0.001; // Precision
274 Double_t minStepSize = 0.001; // Minimum step size
279 density = geometry->GetSiDensity();
280 radiationLength = 9.36;
286 AliMaterial(id, "Si$", a, z, density, radiationLength, absorbtionLength);
287 AliMedium(kSiId, "Si$", id,1,fieldType,maxField,maxBending,
288 maxStepSize,maxEnergyLoss,precision,minStepSize);
295 radiationLength = 18.8;
301 AliMaterial(id, "Carbon$", a, z, density, radiationLength, absorbtionLength);
302 AliMedium(kCarbonId, "Carbon$", id,0,fieldType,maxField,maxBending,
303 maxStepSize,maxEnergyLoss,precision,minStepSize);
309 radiationLength = 8.9;
311 AliMaterial(id, "Aluminum$",a,z, density, radiationLength, absorbtionLength);
312 AliMedium(kAlId, "Aluminum$", id, 0, fieldType, maxField, maxBending,
313 maxStepSize, maxEnergyLoss, precision, minStepSize);
320 radiationLength = 1.43;
322 AliMaterial(id, "Copper$",
323 a, z, density, radiationLength, absorbtionLength);
324 AliMedium(kCopperId, "Copper$", id, 0, fieldType, maxField, maxBending,
325 maxStepSize, maxEnergyLoss, precision, minStepSize);
330 Float_t as[] = { 12.0107, 14.0067, 15.9994,
331 1.00794, 28.0855, 107.8682 };
332 Float_t zs[] = { 6., 7., 8.,
334 Float_t ws[] = { 0.039730642, 0.001396798, 0.01169634,
335 0.004367771, 0.844665, 0.09814344903 };
342 AliMixture(id, "Si Chip$", as, zs, density, 6, ws);
343 AliMedium(kSiChipId, "Si Chip$", id, 0, fieldType, maxField, maxBending,
344 maxStepSize, maxEnergyLoss, precision, minStepSize);
349 Float_t as[] = { 1.00794, 12.0107, 14.010, 15.9994};
350 Float_t zs[] = { 1., 6., 7., 8.};
351 Float_t ws[] = { 0.026362, 0.69113, 0.07327, 0.209235};
358 AliMixture(id, "Kaption$", as, zs, density, 4, ws);
359 AliMedium(kKaptonId, "Kaption$", id,0,fieldType,maxField,maxBending,
360 maxStepSize,maxEnergyLoss,precision,minStepSize);
365 Float_t as[] = { 12.0107, 14.0067, 15.9994, 39.948 };
366 Float_t zs[] = { 6., 7., 8., 18. };
367 Float_t ws[] = { 0.000124, 0.755267, 0.231781, 0.012827 };
374 AliMixture(id, "Air$", as, zs, density, 4, ws);
375 AliMedium(kAirId, "Air$", id,0,fieldType,maxField,maxBending,
376 maxStepSize,maxEnergyLoss,precision,minStepSize);
381 Float_t zs[] = { 14., 20., 13., 12.,
385 Float_t as[] = { 28.0855, 40.078, 26.981538, 24.305,
386 10.811, 47.867, 22.98977, 39.0983,
387 55.845, 18.9984, 15.9994, 12.0107,
389 Float_t ws[] = { 0.15144894, 0.08147477, 0.04128158, 0.00904554,
390 0.01397570, 0.00287685, 0.00445114, 0.00498089,
391 0.00209828, 0.00420000, 0.36043788, 0.27529426,
392 0.01415852, 0.03427566};
399 AliMixture(id, "PCB$", as, zs, density, 14, ws);
400 AliMedium(kPcbId, "PCB$", id,0,fieldType,maxField,maxBending,
401 maxStepSize,maxEnergyLoss,precision,minStepSize);
406 Float_t as[] = { 55.847, 51.9961, 58.6934, 28.0855 };
407 Float_t zs[] = { 26., 24., 28., 14. };
408 Float_t ws[] = { .715, .18, .1, .005 };
411 AliMixture(id, "Steel$", as, zs, density, 4, ws);
412 AliMedium(kSteelId, "Steel$", id, 0, fieldType, maxField, maxBending,
413 maxStepSize, maxEnergyLoss, precision, minStepSize);
417 Float_t as[] = { 1.01, 12.01 };
418 Float_t zs[] = { 1., 6. };
419 Float_t ws[] = { 1., 1. };
426 AliMixture(id, "Plastic$", as, zs, density, -2, ws);
427 AliMedium(kPlasticId, "Plastic$", id,0,fieldType,maxField,maxBending,
428 maxStepSize,maxEnergyLoss,precision,minStepSize);
433 //____________________________________________________________________
437 // Initialize the detector
439 AliFMDDebug(1, ("Initialising FMD detector object"));
440 TVirtualMC* mc = TVirtualMC::GetMC();
441 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
442 const TArrayI& actGeo = fmd->ActiveIds();
443 TArrayI actVmc(actGeo.fN);
444 for (Int_t i = 0; i < actGeo.fN; i++) {
445 TGeoVolume *sens = gGeoManager->GetVolume(actGeo[i]);
447 AliError(Form("No TGeo volume for sensitive volume ID=%d",actGeo[i]));
450 actVmc[i] = mc->VolId(sens->GetName());
451 AliFMDDebug(1, ("Active vol id # %d: %d changed to %d",
452 i, actGeo[i], actVmc[i]));
454 fmd->SetActive(actVmc.fArray, actVmc.fN);
455 // fmd->InitTransformations();
458 //____________________________________________________________________
460 AliFMD::FinishEvent()
462 // Called at the end of the an event in simulations. If the debug
463 // level is high enough, then the `bad' hits are printed.
465 if (AliLog::GetDebugLevel("FMD", "AliFMD") < 10) return;
466 if (fBad && fBad->GetEntries() > 0) {
467 AliWarning((Form("EndEvent", "got %d 'bad' hits", fBad->GetEntries())));
470 while ((hit = static_cast<AliFMDHit*>(next()))) hit->Print("D");
477 //====================================================================
479 // Hit and Digit managment
481 //____________________________________________________________________
483 AliFMD::MakeBranch(Option_t * option)
485 // Create Tree branches for the FMD.
489 // H Make a branch of TClonesArray of AliFMDHit's
490 // D Make a branch of TClonesArray of AliFMDDigit's
491 // S Make a branch of TClonesArray of AliFMDSDigit's
493 const Int_t kBufferSize = 16000;
494 TString branchname(GetName());
497 if (opt.Contains("H", TString::kIgnoreCase)) {
499 AliDetector::MakeBranch(option);
501 if (opt.Contains("D", TString::kIgnoreCase)) {
503 MakeBranchInTree(fLoader->TreeD(), branchname.Data(),
504 &fDigits, kBufferSize, 0);
506 if (opt.Contains("S", TString::kIgnoreCase)) {
508 MakeBranchInTree(fLoader->TreeS(), branchname.Data(),
509 &fSDigits, kBufferSize, 0);
513 //____________________________________________________________________
515 AliFMD::SetTreeAddress()
517 // Set branch address for the Hits, Digits, and SDigits Tree.
518 if (fLoader->TreeH()) HitsArray();
519 AliDetector::SetTreeAddress();
521 TTree *treeD = fLoader->TreeD();
524 TBranch* branch = treeD->GetBranch ("FMD");
525 if (branch) branch->SetAddress(&fDigits);
528 TTree *treeS = fLoader->TreeS();
531 TBranch* branch = treeS->GetBranch ("FMD");
532 if (branch) branch->SetAddress(&fSDigits);
536 //____________________________________________________________________
538 AliFMD::SetHitsAddressBranch(TBranch *b)
540 // Set the TClonesArray to read hits into.
541 b->SetAddress(&fHits);
543 //____________________________________________________________________
545 AliFMD::SetSDigitsAddressBranch(TBranch *b)
547 // Set the TClonesArray to read hits into.
548 b->SetAddress(&fSDigits);
551 //____________________________________________________________________
553 AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
555 // Add a hit to the hits tree
557 // The information of the two arrays are decoded as
561 // ivol[0] [UShort_t ] Detector #
562 // ivol[1] [Char_t ] Ring ID
563 // ivol[2] [UShort_t ] Sector #
564 // ivol[3] [UShort_t ] Strip #
565 // hits[0] [Float_t ] Track's X-coordinate at hit
566 // hits[1] [Float_t ] Track's Y-coordinate at hit
567 // hits[3] [Float_t ] Track's Z-coordinate at hit
568 // hits[4] [Float_t ] X-component of track's momentum
569 // hits[5] [Float_t ] Y-component of track's momentum
570 // hits[6] [Float_t ] Z-component of track's momentum
571 // hits[7] [Float_t ] Energy deposited by track
572 // hits[8] [Int_t ] Track's particle Id #
573 // hits[9] [Float_t ] Time when the track hit
576 AddHitByFields(track,
577 UShort_t(vol[0]), // Detector #
578 Char_t(vol[1]), // Ring ID
579 UShort_t(vol[2]), // Sector #
580 UShort_t(vol[3]), // Strip #
587 hits[6], // Energy loss
588 Int_t(hits[7]), // PDG
592 //____________________________________________________________________
594 AliFMD::AddHitByFields(Int_t track,
611 // Add a hit to the list
616 // detector Detector # (1, 2, or 3)
617 // ring Ring ID ('I' or 'O')
618 // sector Sector # (For inner/outer rings: 0-19/0-39)
619 // strip Strip # (For inner/outer rings: 0-511/0-255)
620 // x Track's X-coordinate at hit
621 // y Track's Y-coordinate at hit
622 // z Track's Z-coordinate at hit
623 // px X-component of track's momentum
624 // py Y-component of track's momentum
625 // pz Z-component of track's momentum
626 // edep Energy deposited by track
627 // pdg Track's particle Id #
628 // t Time when the track hit
629 // l Track length through the material.
630 // stop Whether track was stopped or disappeared
632 TClonesArray& a = *(HitsArray());
633 // Search through the list of already registered hits, and see if we
634 // find a hit with the same parameters. If we do, then don't create
635 // a new hit, but rather update the energy deposited in the hit.
636 // This is done, so that a FLUKA based simulation will get the
637 // number of hits right, not just the enerrgy deposition.
639 for (Int_t i = 0; i < fNhits; i++) {
640 if (!a.At(i)) continue;
641 hit = static_cast<AliFMDHit*>(a.At(i));
642 if (hit->Detector() == detector
643 && hit->Ring() == ring
644 && hit->Sector() == sector
645 && hit->Strip() == strip
646 && hit->Track() == track) {
647 AliFMDDebug(1, ("already had a hit in FMD%d%c[%2d,%3d] for track # %d,"
648 " adding energy (%f) to that hit (%f) -> %f",
649 detector, ring, sector, strip, track, edep, hit->Edep(),
650 hit->Edep() + edep));
651 hit->SetEdep(hit->Edep() + edep);
655 // If hit wasn't already registered, do so know.
656 hit = new (a[fNhits]) AliFMDHit(fIshunt, track, detector, ring, sector,
657 strip, x, y, z, px, py, pz, edep, pdg, t,
659 // gMC->AddTrackReference(track, 12);
664 AliMC *mcApplication = (AliMC*)gAlice->GetMCApp();
666 AliTrackReference* trackRef = AddTrackReference(mcApplication->GetCurrentTrackNumber(), AliTrackReference::kFMD);
667 UInt_t stripId = AliFMDStripIndex::Pack(detector,ring,sector,strip);
668 trackRef->SetUserId(stripId);
675 //____________________________________________________________________
677 AliFMD::AddDigit(Int_t* digits, Int_t*)
679 // Add a digit to the Digit tree
683 // digits[0] [UShort_t] Detector #
684 // digits[1] [Char_t] Ring ID
685 // digits[2] [UShort_t] Sector #
686 // digits[3] [UShort_t] Strip #
687 // digits[4] [UShort_t] ADC Count
688 // digits[5] [Short_t] ADC Count, -1 if not used
689 // digits[6] [Short_t] ADC Count, -1 if not used
691 AddDigitByFields(UShort_t(digits[0]), // Detector #
692 Char_t(digits[1]), // Ring ID
693 UShort_t(digits[2]), // Sector #
694 UShort_t(digits[3]), // Strip #
695 UShort_t(digits[4]), // ADC Count1
696 Short_t(digits[5]), // ADC Count2
697 Short_t(digits[6]), // ADC Count3
701 //____________________________________________________________________
703 AliFMD::AddDigitByFields(UShort_t detector,
714 // add a real digit - as coming from data
718 // detector Detector # (1, 2, or 3)
719 // ring Ring ID ('I' or 'O')
720 // sector Sector # (For inner/outer rings: 0-19/0-39)
721 // strip Strip # (For inner/outer rings: 0-511/0-255)
722 // count1 ADC count (a 10-bit word)
723 // count2 ADC count (a 10-bit word), or -1 if not used
724 // count3 ADC count (a 10-bit word), or -1 if not used
725 TClonesArray& a = *(DigitsArray());
727 AliFMDDebug(15, ("Adding digit # %5d/%5d for FMD%d%c[%2d,%3d]"
728 "=(%d,%d,%d,%d) with %d tracks",
729 fNdigits-1, a.GetEntriesFast(),
730 detector, ring, sector, strip,
731 count1, count2, count3, count4, nrefs));
733 AliFMDDigit(detector, ring, sector, strip,
734 count1, count2, count3, count4, nrefs, refs);
738 //____________________________________________________________________
740 AliFMD::AddSDigit(Int_t* digits)
742 // Add a digit to the SDigit tree
746 // digits[0] [UShort_t] Detector #
747 // digits[1] [Char_t] Ring ID
748 // digits[2] [UShort_t] Sector #
749 // digits[3] [UShort_t] Strip #
750 // digits[4] [Float_t] Total energy deposited
751 // digits[5] [UShort_t] ADC Count
752 // digits[6] [Short_t] ADC Count, -1 if not used
753 // digits[7] [Short_t] ADC Count, -1 if not used
755 AddSDigitByFields(UShort_t(digits[0]), // Detector #
756 Char_t(digits[1]), // Ring ID
757 UShort_t(digits[2]), // Sector #
758 UShort_t(digits[3]), // Strip #
759 Float_t(digits[4]), // Edep
760 UShort_t(digits[5]), // ADC Count1
761 Short_t(digits[6]), // ADC Count2
762 Short_t(digits[7]), // ADC Count3
763 Short_t(digits[8]), // ADC Count4
764 UShort_t(digits[9]), // N particles
765 UShort_t(digits[10])); // N primaries
768 //____________________________________________________________________
770 AliFMD::AddSDigitByFields(UShort_t detector,
783 // add a summable digit
787 // detector Detector # (1, 2, or 3)
788 // ring Ring ID ('I' or 'O')
789 // sector Sector # (For inner/outer rings: 0-19/0-39)
790 // strip Strip # (For inner/outer rings: 0-511/0-255)
791 // edep Total energy deposited
792 // count1 ADC count (a 10-bit word)
793 // count2 ADC count (a 10-bit word), or -1 if not used
794 // count3 ADC count (a 10-bit word), or -1 if not used
796 TClonesArray& a = *(SDigitsArray());
797 // AliFMDDebug(0, ("Adding sdigit # %d", fNsdigits));
799 AliFMDDebug(15, ("Adding sdigit # %5d/%5d for FMD%d%c[%2d,%3d]"
800 "=(%d,%d,%d,%d) with %d tracks %d primaries %d (%p)",
801 fNsdigits-1, a.GetEntriesFast(),
802 detector, ring, sector, strip,
803 count1, count2, count3, count4, ntot, nprim, refs));
805 AliFMDSDigit(detector, ring, sector, strip, edep,
806 count1, count2, count3, count4, ntot, nprim, refs);
809 //____________________________________________________________________
811 AliFMD::ResetSDigits()
813 // Reset number of digits and the digits array for this detector.
816 if (fSDigits) fSDigits->Clear();
820 //____________________________________________________________________
824 // Initialize hit array if not already, and return pointer to it.
826 fHits = new TClonesArray("AliFMDHit", 1000);
832 //____________________________________________________________________
834 AliFMD::DigitsArray()
836 // Initialize digit array if not already, and return pointer to it.
838 fDigits = new TClonesArray("AliFMDDigit", 1000);
844 //____________________________________________________________________
846 AliFMD::SDigitsArray()
848 // Initialize digit array if not already, and return pointer to it.
850 fSDigits = new TClonesArray("AliFMDSDigit", 1000);
856 //====================================================================
860 //____________________________________________________________________
862 AliFMD::Hits2Digits()
864 // Create AliFMDDigit's from AliFMDHit's. This is done by making a
865 // AliFMDDigitizer, and executing that code.
867 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kDigits);
872 //____________________________________________________________________
874 AliFMD::Hits2SDigits()
876 // Create AliFMDSDigit's from AliFMDHit's. This is done by creating
877 // an AliFMDSDigitizer object, and executing it.
879 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kSDigits);
885 //____________________________________________________________________
887 AliFMD::CreateDigitizer(AliRunDigitizer* manager) const
889 // Create a digitizer object
891 /* This is what we probably _should_ do */
892 AliFMDBaseDigitizer* digitizer = 0;
894 #ifdef USE_SSDIGITIZER
895 digitizer = new AliFMDSSDigitizer(manager);
897 /* This is what we actually do, and will work */
899 AliInfo("SDigit->Digit conversion not really supported, "
900 "doing Hit->Digit conversion instead");
902 digitizer = new AliFMDDigitizer(manager);
907 //====================================================================
909 // Raw data simulation
911 //__________________________________________________________________
915 // Turn digits into raw data.
917 // This uses the class AliFMDRawWriter to do the job. Please refer
918 // to that class for more information.
919 AliFMDRawWriter writer(this);
923 //====================================================================
927 //__________________________________________________________________
929 AliFMD::Raw2SDigits(AliRawReader* reader)
931 // Turn digits into raw data.
933 // This uses the class AliFMDRawWriter to do the job. Please refer
934 // to that class for more information.
935 AliFMDParameters::Instance()->Init();
939 TClonesArray* sdigits = SDigits();
940 AliFMDReconstructor rec;
942 // The two boolean arguments
943 // Make sdigits instead of digits
944 // Subtract the pedestal off the signal
945 rec.Digitize(reader, sdigits);
947 // Bool_t ret = fmdReader.ReadAdcs(sdigits, kTRUE, kTRUE);
949 UShort_t ns = sdigits->GetEntriesFast();
950 for (UShort_t i = 0; i < ns; i++)
951 sdigits->At(i)->Print("pl");
953 AliFMDDebug(1, ("Got a total of %d SDigits", ns));
955 fLoader->TreeS()->Fill();
957 fLoader->WriteSDigits("OVERWRITE");
963 //====================================================================
967 //__________________________________________________________________
969 AliFMD::Browse(TBrowser* b)
971 // Browse this object.
973 AliFMDDebug(30, ("\tBrowsing the FMD"));
974 AliDetector::Browse(b);
975 b->Add(AliFMDGeometry::Instance());
978 //____________________________________________________________________
980 AliFMD::AddAlignableVolumes() const
983 // Create entries for alignable volumes associating the symbolic volume
984 // name with the corresponding volume path. Needs to be syncronized with
985 // eventual changes in the geometry.
987 // This code was made by Raffaele Grosso <rgrosso@mail.cern.ch>. I
988 // (cholm) will probably want to change it. For one, I think it
989 // should be the job of the geometry manager to deal with this.
990 AliInfo("Add FMD alignable volumes");
991 AliFMDGeometry::Instance()->SetAlignableVolumes();
993 for(size_t f = 1; f <= 3; f++){ // Detector 1,2,3
994 for(size_t tb = 0; tb <2 ; tb++){ // Top/Bottom
995 char stb = tb == 0 ? 'T' : 'B';
996 unsigned min = tb == 0 ? 0 : 5;
998 TString halfVol(Form("/ALIC_1/F%dM%c_%d", f, stb, f));
999 TString halfSym(halfVol);
1000 if(!gGeoManager->SetAlignableEntry(halfSym.Data(),halfVol.Data()))
1001 AliFatal(Form("Alignable entry %s not created. "
1002 "Volume path %s not valid",
1003 halfSym.Data(),halfVol.Data()));
1004 for(size_t io = 0; io < 2; io++){ // inner, outer
1005 if (f==1 && io==1) continue; // Only one ring in FMD1
1006 if(tb == 1 && io==1) min=10;
1007 char sio = (io == 0 ? 'I' : 'O');
1008 unsigned nio = (io == 0 ? 3 : 9);
1009 unsigned max = (io == 0 ? 5 : 10) + min;
1011 for(size_t i = min; i < max; i++) { // Modules
1012 TString modVol(Form("%s/F%c%cV_7%d/F%cSE_%d", halfVol.Data(),
1013 sio, stb, nio, sio, i));
1014 TString modSym(modVol);
1015 if(!gGeoManager->SetAlignableEntry(modSym.Data(),modVol.Data()))
1016 AliFatal(Form("Alignable entry %s not created. "
1017 "Volume path %s not valid",
1018 modSym.Data(), modVol.Data()));
1025 //___________________________________________________________________