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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // Transition Radiation Detector //
21 // This class contains the basic functions for the Transition Radiation //
24 ///////////////////////////////////////////////////////////////////////////////
27 #include <Riostream.h>
29 #include <TClonesArray.h>
31 #include <TGeometry.h>
32 #include <TLorentzVector.h>
36 #include <TParticle.h>
39 #include <TVirtualMC.h>
43 #include "AliLoader.h"
48 #include "AliTrackReference.h"
49 #include "AliRawReader.h"
52 #include "AliTRDdigit.h"
53 #include "AliTRDdigitizer.h"
54 #include "AliTRDdigitsManager.h"
55 #include "AliTRDgeometry.h"
56 #include "AliTRDhit.h"
57 #include "AliTRDpoints.h"
58 #include "AliTRDrawData.h"
59 #include "AliTRDSimParam.h"
60 #include "AliTRDCommonParam.h"
61 #include "AliTRDcalibDB.h"
65 //_____________________________________________________________________________
75 // Default constructor
80 //_____________________________________________________________________________
81 AliTRD::AliTRD(const char *name, const char *title)
82 :AliDetector(name,title)
90 // Standard constructor for the TRD
93 // Check that FRAME is there otherwise we have no place where to put TRD
94 AliModule *frame = gAlice->GetModule("FRAME");
96 AliError("TRD needs FRAME to be present\n");
100 // Define the TRD geometry
101 if ((frame->IsVersion() == 0) ||
102 (frame->IsVersion() == 1)) {
103 fGeometry = new AliTRDgeometry();
106 AliError("Could not find valid FRAME version\n");
110 // Allocate the hit array
111 fHits = new TClonesArray("AliTRDhit",405);
112 gAlice->GetMCApp()->AddHitList(fHits);
116 //_____________________________________________________________________________
135 //_____________________________________________________________________________
136 void AliTRD::Hits2Digits()
142 AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class");
143 AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel());
146 digitizer.InitDetector();
148 if (!fLoader->TreeH()) {
149 fLoader->LoadHits("read");
151 fLoader->LoadDigits("recreate");
153 AliRunLoader *runLoader = fLoader->GetRunLoader();
155 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
156 runLoader->GetEvent(iEvent);
157 digitizer.Open(runLoader,iEvent);
158 digitizer.MakeDigits();
159 digitizer.WriteDigits();
162 fLoader->UnloadHits();
163 fLoader->UnloadDigits();
167 //_____________________________________________________________________________
168 void AliTRD::Hits2SDigits()
171 // Create summable digits
174 AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class");
175 // For the summable digits
176 digitizer.SetSDigits(kTRUE);
177 AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel());
180 digitizer.InitDetector();
182 if (!fLoader->TreeH()) {
183 fLoader->LoadHits("read");
185 fLoader->LoadSDigits("recreate");
187 AliRunLoader *runLoader = fLoader->GetRunLoader();
189 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
190 runLoader->GetEvent(iEvent);
191 digitizer.Open(runLoader,iEvent);
192 digitizer.MakeDigits();
193 digitizer.WriteDigits();
196 fLoader->UnloadHits();
197 fLoader->UnloadSDigits();
201 //_____________________________________________________________________________
202 AliDigitizer *AliTRD::CreateDigitizer(AliRunDigitizer *manager) const
205 // Creates a new digitizer object
208 return new AliTRDdigitizer(manager);
212 //_____________________________________________________________________________
213 void AliTRD::SDigits2Digits()
216 // Create final digits from summable digits
219 // Create the TRD digitizer
220 AliTRDdigitizer digitizer("TRDdigitizer","TRD digitizer class");
221 AliLog::SetClassDebugLevel("TRDdigitizer",AliDebugLevel());
224 digitizer.SetEvent(gAlice->GetEvNumber());
227 digitizer.InitDetector();
229 // Read the s-digits via digits manager
230 AliTRDdigitsManager sdigitsManager;
232 AliLog::SetClassDebugLevel("TRDdigitisManager",AliDebugLevel());
233 sdigitsManager.SetSDigits(kTRUE);
234 sdigitsManager.CreateArrays();
236 if (!fLoader->TreeS()) {
237 if (fLoader->LoadSDigits("read")) {
241 if (!fLoader->TreeS()) {
242 AliError(Form("Error while reading SDigits for event %d",gAlice->GetEvNumber()));
246 sdigitsManager.ReadDigits(fLoader->TreeS());
248 // Add the s-digits to the input list
249 digitizer.AddSDigitsManager(&sdigitsManager);
251 // Convert the s-digits to normal digits
252 digitizer.SDigits2Digits();
255 if (!fLoader->TreeD()) {
256 fLoader->MakeTree("D");
258 if (digitizer.MakeBranch(fLoader->TreeD())){
259 digitizer.WriteDigits();
264 //_____________________________________________________________________________
265 void AliTRD::Digits2Raw()
268 // Convert digits of the current event to raw data
271 fLoader->LoadDigits();
272 TTree *digits = fLoader->TreeD();
274 AliError("No digits tree");
278 AliTRDrawData rawWriter;
279 if (!rawWriter.Digits2Raw(digits)) {
280 AliError("The raw writer could not load the digits tree");
283 fLoader->UnloadDigits();
287 //_____________________________________________________________________________
288 void AliTRD::AddHit(Int_t track, Int_t det, Float_t *hits, Int_t q
289 , Float_t time, Bool_t inDrift)
292 // Add a hit for the TRD
295 TClonesArray &lhits = *fHits;
296 AliTRDhit *hit = new(lhits[fNhits++]) AliTRDhit(fIshunt
307 hit->SetAmplification();
316 //_____________________________________________________________________________
317 void AliTRD::BuildGeometry()
320 // Create the ROOT TNode geometry for the TRD
327 // The dimensions of the TRD super module
328 const Float_t kRmin = 291.0;
329 const Float_t kRmax = 369.0;
330 const Float_t kZmax1 = 378.35;
331 const Float_t kZmax2 = 302.0;
340 const Int_t kColorTRD = 46;
342 // Find the top node alice
343 top = gAlice->GetGeometry()->GetNode("alice");
345 if (fDisplayType == 0) {
347 pgon = new TPGON("S_TRD","TRD","void",0,360,AliTRDgeometry::Nsect(),4);
350 pgon->DefineSection(0,-kZmax1,rmax,rmax);
351 pgon->DefineSection(1,-kZmax2,rmin,rmax);
352 pgon->DefineSection(2, kZmax2,rmin,rmax);
353 pgon->DefineSection(3, kZmax1,rmax,rmax);
355 node = new TNode("TRD","TRD","S_TRD",0,0,0,"");
356 node->SetLineColor(kColorTRD);
360 else if (fDisplayType == 1) {
364 Float_t slope = (kZmax1 - kZmax2) / (kRmax - kRmin);
366 rmin = kRmin + AliTRDgeometry::CraHght();
367 rmax = rmin + AliTRDgeometry::CdrHght();
369 Float_t thickness = rmin - kRmin;
370 zmax2 = kZmax2 + slope * thickness;
371 zmax1 = zmax2 + slope * AliTRDgeometry::DrThick();
373 for (iPlan = 0; iPlan < AliTRDgeometry::Nplan(); iPlan++) {
375 sprintf(name,"S_TR1%d",iPlan);
376 pgon = new TPGON(name,"TRD","void",0,360,AliTRDgeometry::Nsect(),4);
377 pgon->DefineSection(0,-zmax1,rmax,rmax);
378 pgon->DefineSection(1,-zmax2,rmin,rmax);
379 pgon->DefineSection(2, zmax2,rmin,rmax);
380 pgon->DefineSection(3, zmax1,rmax,rmax);
382 node = new TNode("TRD","TRD",name,0,0,0,"");
383 node->SetLineColor(kColorTRD);
386 Float_t height = AliTRDgeometry::Cheight() + AliTRDgeometry::Cspace();
387 rmin = rmin + height;
388 rmax = rmax + height;
389 zmax1 = zmax1 + slope * height;
390 zmax2 = zmax2 + slope * height;
394 thickness += AliTRDgeometry::DrThick();
395 rmin = kRmin + thickness;
396 rmax = rmin + AliTRDgeometry::AmThick();
397 zmax2 = kZmax2 + slope * thickness;
398 zmax1 = zmax2 + slope * AliTRDgeometry::AmThick();
400 for (iPlan = 0; iPlan < AliTRDgeometry::Nplan(); iPlan++) {
402 sprintf(name,"S_TR2%d",iPlan);
403 pgon = new TPGON(name,"TRD","void",0,360,AliTRDgeometry::Nsect(),4);
404 pgon->DefineSection(0,-zmax1,rmax,rmax);
405 pgon->DefineSection(1,-zmax2,rmin,rmax);
406 pgon->DefineSection(2, zmax2,rmin,rmax);
407 pgon->DefineSection(3, zmax1,rmax,rmax);
409 node = new TNode("TRD","TRD",name,0,0,0,"");
410 node->SetLineColor(kColorTRD);
413 Float_t height = AliTRDgeometry::Cheight() + AliTRDgeometry::Cspace();
414 rmin = rmin + height;
415 rmax = rmax + height;
416 zmax1 = zmax1 + slope * height;
417 zmax2 = zmax2 + slope * height;
425 //_____________________________________________________________________________
426 void AliTRD::CreateGeometry()
429 // Creates the volumes for the TRD chambers
432 // Check that FRAME is there otherwise we have no place where to put the TRD
433 AliModule *frame = gAlice->GetModule("FRAME");
435 AliFatal("The TRD needs the FRAME to be defined first");
438 fGeometry->CreateGeometry(fIdtmed->GetArray() - 1299);
442 //_____________________________________________________________________________
443 void AliTRD::CreateMaterials()
446 // Create the materials for the TRD
449 Int_t isxfld = gAlice->Field()->Integ();
450 Float_t sxmgmx = gAlice->Field()->Max();
452 // For polyethilene (CH2)
453 Float_t ape[2] = { 12.011 , 1.0079 };
454 Float_t zpe[2] = { 6.0 , 1.0 };
455 Float_t wpe[2] = { 1.0 , 2.0 };
459 Float_t aco[2] = { 12.011 , 15.9994 };
460 Float_t zco[2] = { 6.0 , 8.0 };
461 Float_t wco[2] = { 1.0 , 2.0 };
462 Float_t dco = 0.00186;
465 Float_t awa[2] = { 1.0079, 15.9994 };
466 Float_t zwa[2] = { 1.0 , 8.0 };
467 Float_t wwa[2] = { 2.0 , 1.0 };
470 // For isobutane (C4H10)
471 Float_t ais[2] = { 12.011 , 1.0079 };
472 Float_t zis[2] = { 6.0 , 1.0 };
473 Float_t wis[2] = { 4.0 , 10.0 };
474 Float_t dis = 0.00267;
476 // For plexiglas (C5H8O2)
477 Float_t apg[3] = { 12.011 , 1.0079, 15.9994 };
478 Float_t zpg[3] = { 6.0 , 1.0 , 8.0 };
479 Float_t wpg[3] = { 5.0 , 8.0 , 2.0 };
482 // For epoxy (C18H19O3)
483 Float_t aEpoxy[3] = { 15.9994, 1.0079, 12.011 };
484 Float_t zEpoxy[3] = { 8.0 , 1.0 , 6.0 };
485 Float_t wEpoxy[3] = { 3.0 , 19.0 , 18.0 };
486 Float_t dEpoxy = 1.8 ;
488 // For Araldite, low density epoxy (C18H19O3)
489 Float_t aAral[3] = { 15.9994, 1.0079, 12.011 };
490 Float_t zAral[3] = { 8.0 , 1.0 , 6.0 };
491 Float_t wAral[3] = { 3.0 , 19.0 , 18.0 };
492 Float_t dAral = 1.05;
495 Float_t aAir[4] = { 12.011 , 14.0 , 15.9994 , 36.0 };
496 Float_t zAir[4] = { 6.0 , 7.0 , 8.0 , 18.0 };
497 Float_t wAir[4] = { 0.000124, 0.755267, 0.231781, 0.012827 };
498 Float_t dAir = 1.20479e-03;
501 Float_t aG10[4] = { 1.0079 , 12.011 , 15.9994 , 28.086 };
502 Float_t zG10[4] = { 1.0 , 6.0 , 8.0 , 14.0 };
503 Float_t wG10[4] = { 0.15201 , 0.10641 , 0.49444 , 0.24714 };
506 // For Xe/CO2-gas-mixture
507 Float_t aXeCO2[3] = { 131.29 , 12.0107 , 15.9994 };
508 Float_t zXeCO2[3] = { 54.0 , 6.0 , 8.0 };
509 Float_t wXeCO2[3] = { 8.5 , 1.5 , 3.0 };
510 // Xe-content of the Xe/CO2-mixture (85% / 15%)
512 Float_t dxe = 0.00549;
513 Float_t dgm = fxc * dxe + (1.0 - fxc) * dco;
515 // General tracking parameter
516 Float_t tmaxfd = -10.0;
517 Float_t stemax = -1.0e10;
518 Float_t deemax = -0.1;
519 Float_t epsil = 1.0e-4;
520 Float_t stmin = -0.001;
522 //////////////////////////////////////////////////////////////////////////
524 //////////////////////////////////////////////////////////////////////////
526 AliMaterial( 1, "Al" , 26.98, 13.0, 2.7 , 8.9 , 37.2);
527 AliMaterial( 4, "Xe" , 131.29, 54.0, dxe , 1546.16, 0.0);
528 AliMaterial( 5, "Cu" , 63.54, 29.0, 8.96 , 1.43, 14.8);
529 AliMaterial( 6, "C" , 12.01, 6.0, 2.265 , 18.8 , 74.4);
530 AliMaterial(15, "Sn" , 118.71, 50.0, 7.31 , 1.21, 14.8);
531 AliMaterial(16, "Si" , 28.09, 14.0, 2.33 , 9.36, 37.2);
532 AliMaterial(18, "Fe" , 55.85, 26.0, 7.87 , 1.76, 14.8);
535 AliMixture(2, "Air" , aAir, zAir, dAir, 4, wAir );
536 AliMixture(3, "Polyethilene", ape, zpe, dpe, -2, wpe );
537 AliMixture(8, "CO2", aco, zco, dco, -2, wco );
538 AliMixture(9, "Isobutane", ais, zis, dis, -2, wis );
539 AliMixture(10,"Gas mixture", aXeCO2, zXeCO2, dgm, -3, wXeCO2);
540 AliMixture(12,"G10", aG10, zG10, dG10, 4, wG10 );
541 AliMixture(13,"Water", awa, zwa, dwa, -2, wwa );
542 AliMixture(14,"Plexiglas", apg, zpg, dpg, -3, wpg );
543 AliMixture(17,"Epoxy", aEpoxy, zEpoxy, dEpoxy, -3, wEpoxy);
544 AliMixture(19,"Araldite", aAral, zAral, dAral, -3, wAral );
546 //////////////////////////////////////////////////////////////////////////
547 // Tracking Media Parameters
548 //////////////////////////////////////////////////////////////////////////
551 AliMedium( 1,"Al Frame" , 1,0,isxfld,sxmgmx
552 ,tmaxfd,stemax,deemax,epsil,stmin);
554 AliMedium( 2,"Air" , 2,0,isxfld,sxmgmx
555 ,tmaxfd,stemax,deemax,epsil,stmin);
557 AliMedium( 3,"Wires" , 5,0,isxfld,sxmgmx
558 ,tmaxfd,stemax,deemax,epsil,stmin);
559 // All other ROB materials (caps, etc.)
560 AliMedium( 4,"ROB Other" , 5,0,isxfld,sxmgmx
561 ,tmaxfd,stemax,deemax,epsil,stmin);
563 AliMedium( 5,"Padplane" , 5,1,isxfld,sxmgmx
564 ,tmaxfd,stemax,deemax,epsil,stmin);
566 AliMedium( 6,"Readout" , 5,0,isxfld,sxmgmx
567 ,tmaxfd,stemax,deemax,epsil,stmin);
569 AliMedium( 7,"C Frame" , 6,0,isxfld,sxmgmx
570 ,tmaxfd,stemax,deemax,epsil,stmin);
571 // INOX of cooling bus bars
572 AliMedium( 8,"Cooling bus",18,0,isxfld,sxmgmx
573 ,tmaxfd,stemax,deemax,epsil,stmin);
574 // Gas-mixture (Xe/CO2)
575 AliMedium( 9,"Gas-mix" ,10,1,isxfld,sxmgmx
576 ,tmaxfd,stemax,deemax,epsil,stmin);
578 AliMedium(10,"Nomex" ,12,0,isxfld,sxmgmx
579 ,tmaxfd,stemax,deemax,epsil,stmin);
581 AliMedium(11,"Glue" ,19,0,isxfld,sxmgmx
582 ,tmaxfd,stemax,deemax,epsil,stmin);
584 AliMedium(13,"G10-plates" ,12,0,isxfld,sxmgmx
585 ,tmaxfd,stemax,deemax,epsil,stmin);
587 AliMedium(14,"Water" ,13,0,isxfld,sxmgmx
588 ,tmaxfd,stemax,deemax,epsil,stmin);
589 // Rohacell (plexiglas) for the radiator
590 AliMedium(15,"Rohacell" ,14,0,isxfld,sxmgmx
591 ,tmaxfd,stemax,deemax,epsil,stmin);
593 AliMedium(16,"MCM-Al" , 1,0,isxfld,sxmgmx
594 ,tmaxfd,stemax,deemax,epsil,stmin);
596 AliMedium(17,"MCM-Sn" ,15,0,isxfld,sxmgmx
597 ,tmaxfd,stemax,deemax,epsil,stmin);
599 AliMedium(18,"MCM-Cu" , 5,0,isxfld,sxmgmx
600 ,tmaxfd,stemax,deemax,epsil,stmin);
602 AliMedium(19,"MCM-G10" ,12,0,isxfld,sxmgmx
603 ,tmaxfd,stemax,deemax,epsil,stmin);
604 // Si in readout chips
605 AliMedium(20,"Chip-Si" ,16,0,isxfld,sxmgmx
606 ,tmaxfd,stemax,deemax,epsil,stmin);
607 // Epoxy in readout chips
608 AliMedium(21,"Chip-Ep" ,17,0,isxfld,sxmgmx
609 ,tmaxfd,stemax,deemax,epsil,stmin);
611 AliMedium(22,"Conn-PE" , 3,0,isxfld,sxmgmx
612 ,tmaxfd,stemax,deemax,epsil,stmin);
614 AliMedium(23,"Chip-Cu" , 5,0,isxfld,sxmgmx
615 ,tmaxfd,stemax,deemax,epsil,stmin);
616 // Al of cooling pipes
617 AliMedium(24,"Cooling" , 1,0,isxfld,sxmgmx
618 ,tmaxfd,stemax,deemax,epsil,stmin);
620 AliMedium(25,"Serv-Cu" , 5,0,isxfld,sxmgmx
621 ,tmaxfd,stemax,deemax,epsil,stmin);
623 // Save the density values for the TRD absorbtion
630 //_____________________________________________________________________________
631 void AliTRD::DrawModule() const
634 // Draw a shaded view of the Transition Radiation Detector version 0
637 // Set everything unseen
638 gMC->Gsatt("*" ,"SEEN",-1);
640 // Set ALIC mother transparent
641 gMC->Gsatt("ALIC","SEEN", 0);
643 // Set the volumes visible
644 if (fGeometry->IsVersion() == 0) {
645 gMC->Gsatt("B071","SEEN", 0);
646 gMC->Gsatt("B074","SEEN", 0);
647 gMC->Gsatt("B075","SEEN", 0);
648 gMC->Gsatt("B077","SEEN", 0);
649 gMC->Gsatt("BTR1","SEEN", 0);
650 gMC->Gsatt("BTR2","SEEN", 0);
651 gMC->Gsatt("BTR3","SEEN", 0);
652 gMC->Gsatt("UTR1","SEEN", 0);
653 gMC->Gsatt("UTR2","SEEN", 0);
654 gMC->Gsatt("UTR3","SEEN", 0);
657 gMC->Gsatt("B071","SEEN", 0);
658 gMC->Gsatt("B074","SEEN", 0);
659 gMC->Gsatt("B075","SEEN", 0);
660 gMC->Gsatt("B077","SEEN", 0);
661 gMC->Gsatt("BTR1","SEEN", 0);
662 gMC->Gsatt("BTR2","SEEN", 0);
663 gMC->Gsatt("BTR3","SEEN", 0);
664 gMC->Gsatt("UTR1","SEEN", 0);
667 gMC->Gdopt("hide", "on");
668 gMC->Gdopt("shad", "on");
669 gMC->Gsatt("*", "fill", 7);
670 gMC->SetClipBox(".");
671 gMC->SetClipBox("*", 0, 2000, -2000, 2000, -2000, 2000);
673 gMC->Gdraw("alic", 40, 30, 0, 12, 9.4, .021, .021);
674 gMC->Gdhead(1111, "Transition Radiation Detector");
675 gMC->Gdman(18, 4, "MAN");
679 //_____________________________________________________________________________
683 // Initialize the TRD detector after the geometry has been created
686 AliDebug(1,"++++++++++++++++++++++++++++++++++++++++++++++");
688 if (fGeometry->IsVersion() != 1) {
689 AliError("Not a valid geometry");
692 // Special tracking options for charged particles for XeCO2
693 gMC->Gstpar((* fIdtmed)[9],"DRAY" , 1.0);
694 gMC->Gstpar((* fIdtmed)[9],"STRA" , 1.0);
695 gMC->Gstpar((* fIdtmed)[9],"LOSS" ,13.0); // Specific energy loss
696 gMC->Gstpar((* fIdtmed)[9],"PRIMIO_E",23.53); // 1st ionisation potential
697 gMC->Gstpar((* fIdtmed)[9],"PRIMIO_N",19.344431); // Number of primaries
701 //_____________________________________________________________________________
702 void AliTRD::LoadPoints(Int_t )
705 // Store x, y, z of all hits in memory.
706 // Hit originating from TR photons are given a different color
713 Int_t nhits = fHits->GetEntriesFast();
718 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
720 fPoints = new TObjArray(tracks);
725 Int_t *ntrkE = new Int_t[tracks];
726 Int_t *ntrkT = new Int_t[tracks];
727 Int_t *limiE = new Int_t[tracks];
728 Int_t *limiT = new Int_t[tracks];
729 Float_t **coorE = new Float_t*[tracks];
730 Float_t **coorT = new Float_t*[tracks];
731 for(Int_t i = 0; i < tracks; i++) {
740 AliTRDpoints *points = 0;
743 Int_t chunk = nhits / 4 + 1;
745 // Loop over all the hits and store their position
746 ahit = (AliTRDhit *) FirstHit(-1);
750 if (ahit->GetCharge() >= 0) {
752 trk = ahit->GetTrack();
753 if (ntrkE[trk] == limiE[trk]) {
754 // Initialise a new track
755 fp = new Float_t[3*(limiE[trk]+chunk)];
757 memcpy(fp,coorE[trk],sizeof(Float_t)*3*limiE[trk]);
758 delete [] coorE[trk];
766 fp[3*ntrkE[trk] ] = ahit->X();
767 fp[3*ntrkE[trk]+1] = ahit->Y();
768 fp[3*ntrkE[trk]+2] = ahit->Z();
773 else if ((ahit->GetCharge() < 0) &&
776 trk = ahit->GetTrack();
777 if (ntrkT[trk] == limiT[trk]) {
778 // Initialise a new track
779 fp = new Float_t[3*(limiT[trk]+chunk)];
781 memcpy(fp,coorT[trk],sizeof(Float_t)*3*limiT[trk]);
782 delete [] coorT[trk];
790 fp[3*ntrkT[trk] ] = ahit->X();
791 fp[3*ntrkT[trk]+1] = ahit->Y();
792 fp[3*ntrkT[trk]+2] = ahit->Z();
797 ahit = (AliTRDhit *) NextHit();
801 for (trk = 0; trk < tracks; ++trk) {
803 if (ntrkE[trk] || ntrkT[trk]) {
805 points = new AliTRDpoints();
806 points->SetDetector(this);
807 points->SetParticle(trk);
809 // Set the dEdx points
811 points->SetMarkerColor(kWhite); //PH This is the default color in TRD
812 points->SetMarkerSize(1); //PH Default size=1
813 points->SetPolyMarker(ntrkE[trk],coorE[trk],1); //PH Default style=1
814 delete [] coorE[trk];
818 // Set the TR photon points
820 points->SetTRpoints(ntrkT[trk],coorT[trk]);
821 delete [] coorT[trk];
825 fPoints->AddAt(points,trk);
840 //_____________________________________________________________________________
841 void AliTRD::MakeBranch(Option_t *option)
844 // Create Tree branches for the TRD digits.
847 Int_t buffersize = 4000;
848 Char_t branchname[15];
849 sprintf(branchname,"%s",GetName());
851 const Char_t *cD = strstr(option,"D");
853 AliDetector::MakeBranch(option);
858 MakeBranchInTree(gAlice->TreeD(),branchname,&fDigits,buffersize,0);
863 //_____________________________________________________________________________
864 void AliTRD::ResetDigits()
867 // Reset number of digits and the digits array for this detector
878 //_____________________________________________________________________________
879 void AliTRD::SetTreeAddress()
882 // Set the branch addresses for the trees.
885 if (fLoader->TreeH() &&
887 fHits = new TClonesArray("AliTRDhit",405);
889 AliDetector::SetTreeAddress();
893 //_____________________________________________________________________________
894 Bool_t AliTRD::Raw2SDigits(AliRawReader *rawReader)
897 // Converts RAW data to SDigits
900 AliLoader *loader = fRunLoader->GetLoader("TRDLoader");
902 AliError("Can not get TRD loader from Run Loader");
907 tree = loader->TreeS();
909 loader->MakeTree("S");
910 tree = loader->TreeS();
913 AliTRDrawData *rawdata = new AliTRDrawData();
914 AliTRDdigitsManager *sdigitsManager = rawdata->Raw2Digits(rawReader);
915 if (sdigitsManager) {
916 sdigitsManager->SetSDigits(kTRUE);
917 sdigitsManager->MakeBranch(tree);
918 sdigitsManager->WriteDigits();
927 //_____________________________________________________________________________
928 AliTRD &AliTRD::operator=(const AliTRD &trd)
931 // Assignment operator
935 ((AliTRD &) trd).Copy(*this);