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 // **************************************************************************
16 //====================================================================================================================================================
18 // Main class of the ALICE Muon Forward Tracker
20 // Contact author: antonio.uras@cern.ch
22 //====================================================================================================================================================
26 #include "TGeoManager.h"
27 #include "TGeoVolume.h"
28 #include "TGeoMatrix.h"
29 #include "TVirtualMC.h"
30 #include "TClonesArray.h"
31 #include "TGeoGlobalMagField.h"
33 #include "AliLoader.h"
34 #include "AliDetector.h"
38 #include "AliMFTHit.h"
39 #include "AliMFTDigit.h"
40 #include "AliMFTCluster.h"
41 #include "AliTrackReference.h"
42 #include "AliMFTSegmentation.h"
43 #include "AliMFTDigitizer.h"
44 #include "AliMFTPlane.h"
46 #include "TObjArray.h"
50 //====================================================================================================================================================
59 fRecPointsPerPlane(0),
63 fChargeDispersion(25.e-4),
64 fSingleStepForChargeDispersion(0),
65 fNStepForChargeDispersion(4),
66 fDensitySupportOverSi(0.15)
69 // default constructor
73 //====================================================================================================================================================
75 AliMFT::AliMFT(const Char_t *name, const Char_t *title):
76 AliDetector(name, title),
82 fRecPointsPerPlane(0),
86 fChargeDispersion(25.e-4),
87 fSingleStepForChargeDispersion(0),
88 fNStepForChargeDispersion(4),
89 fDensitySupportOverSi(0.15)
92 fNameGeomFile = "AliMFTGeometry.root";
100 //====================================================================================================================================================
102 AliMFT::AliMFT(const Char_t *name, const Char_t *title, Char_t *nameGeomFile):
103 AliDetector(name, title),
109 fRecPointsPerPlane(0),
113 fChargeDispersion(25.e-4),
114 fSingleStepForChargeDispersion(0),
115 fNStepForChargeDispersion(4),
116 fDensitySupportOverSi(0.15)
119 fNameGeomFile = nameGeomFile;
127 //====================================================================================================================================================
131 if (fSDigitsPerPlane) { fSDigitsPerPlane->Delete(); delete fSDigitsPerPlane; }
132 if (fDigitsPerPlane) { fDigitsPerPlane->Delete(); delete fDigitsPerPlane; }
133 if (fRecPointsPerPlane) { fRecPointsPerPlane->Delete(); delete fRecPointsPerPlane; }
137 //====================================================================================================================================================
139 void AliMFT::CreateMaterials() {
141 // Definition of MFT materials - to be updated to the most recent values
143 AliInfo("Start MFT materials");
145 // data from PDG booklet 2002 density [gr/cm^3] rad len [cm] abs len [cm]
146 Float_t aAir[4]={12,14,16,36} , zAir[4]={6,7,8,18} , wAir[4]={0.000124,0.755267,0.231781,0.012827} , dAir=0.00120479; Int_t nAir=4; // Air mixture
147 Float_t aSi = 28.085 , zSi = 14 , dSi = 2.329 , radSi = 21.82/dSi , absSi = 108.4/dSi ; // Silicon
149 Int_t matId = 0; // tmp material id number
150 Int_t unsens = 0, sens=1; // sensitive or unsensitive medium
151 Int_t itgfld = 3; // type of field intergration 0 no field -1 user in guswim 1 Runge Kutta 2 helix 3 const field along z
152 Float_t maxfld = 5.; // max field value
154 Float_t tmaxfd = -10.0; // max deflection angle due to magnetic field in one step
155 Float_t stemax = 0.001; // max step allowed [cm]
156 Float_t deemax = -0.2; // maximum fractional energy loss in one step 0<deemax<=1
157 Float_t epsil = 0.001; // tracking precision [cm]
158 Float_t stmin = -0.001; // minimum step due to continuous processes [cm] (negative value: choose it automatically)
160 Float_t tmaxfdSi = 0.1; // max deflection angle due to magnetic field in one step
161 Float_t stemaxSi = 5.0e-4; // maximum step allowed [cm]
162 Float_t deemaxSi = 0.1; // maximum fractional energy loss in one step 0<deemax<=1
163 Float_t epsilSi = 0.5e-4; // tracking precision [cm]
164 Float_t stminSi = -0.001; // minimum step due to continuous processes [cm] (negative value: choose it automatically)
166 Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); // from CreateMaterials in STRUCT/AliPIPEv3.cxx
167 Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); // from CreateMaterials in STRUCT/AliPIPEv3.cxx
169 AliMixture(++matId,"Air", aAir, zAir, dAir, nAir, wAir);
170 AliMedium(kAir, "Air", matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
172 AliMaterial(++matId, "Si", aSi, zSi, dSi, radSi, absSi );
173 AliMedium(kSi, "Si", matId, sens, isxfld, sxmgmx, tmaxfdSi, stemaxSi, deemaxSi, epsilSi, stminSi);
175 AliMaterial(++matId, "Readout", aSi, zSi, dSi, radSi, absSi );
176 AliMedium(kReadout, "Readout", matId, unsens, isxfld, sxmgmx, tmaxfdSi, stemaxSi, deemaxSi, epsilSi, stminSi);
178 AliMaterial(++matId, "Support", aSi, zSi, dSi*fDensitySupportOverSi, radSi/fDensitySupportOverSi, absSi/fDensitySupportOverSi);
179 AliMedium(kSupport, "Support", matId, unsens, isxfld, sxmgmx, tmaxfdSi, stemaxSi, deemaxSi, epsilSi, stminSi);
181 AliInfo("End MFT materials");
185 //====================================================================================================================================================
187 void AliMFT::CreateGeometry() {
189 // Creates detailed geometry simulation (currently GEANT volumes tree)
191 AliInfo("Start MFT preliminary version building");
192 if(!gMC->IsRootGeometrySupported()) return;
193 TGeoVolumeAssembly *vol = CreateVol();
194 AliInfo("TGeoVolumeAssembly created!");
195 gGeoManager->GetVolume("ALIC")->AddNode(vol,0);
196 AliInfo("Stop MFT preliminary version building");
198 if (fNStepForChargeDispersion) fSingleStepForChargeDispersion = fChargeDispersion/Double_t(fNStepForChargeDispersion);
202 //====================================================================================================================================================
204 void AliMFT::AddAlignableVolumes() {
206 // Create entries for alignable volumes associating the symbolic volume
207 // name with the corresponding volume path. Needs to be syncronized with
208 // eventual changes in the geometry.
210 TString sysName = "MFT";
211 TString volPath = "/ALIC_1/MFT_0";
213 if (!gGeoManager->SetAlignableEntry(sysName.Data(),volPath.Data())) {
214 AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", sysName.Data(), volPath.Data()));
219 //====================================================================================================================================================
221 void AliMFT::StepManager() {
225 AliDebug(2, Form("Entering StepManager: gMC->CurrentVolName() = %s", gMC->CurrentVolName()));
227 if (!fSegmentation) AliFatal("No segmentation available"); // DO WE HAVE A SEGMENTATION???
229 if (!(this->IsActive())) return;
230 if (!(gMC->TrackCharge())) return;
232 TString planeNumber = gMC->CurrentVolName();
233 TString detElemNumber = gMC->CurrentVolName();
234 if (planeNumber.Contains("support")) return;
235 if (planeNumber.Contains("readout")) return;
236 planeNumber.Remove(0,9);
237 detElemNumber.Remove(0,19);
238 planeNumber.Remove(2);
239 detElemNumber.Remove(3);
240 Int_t detElemID = fSegmentation->GetDetElemID(planeNumber.Atoi(), detElemNumber.Atoi());
242 if (gMC->IsTrackExiting()) {
243 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kMFT);
246 static TLorentzVector position, momentum;
247 static AliMFTHit hit;
252 if (gMC->IsTrackInside()) status += 1;
253 if (gMC->IsTrackEntering()) status += 2;
254 if (gMC->IsTrackExiting()) status += 4;
255 if (gMC->IsTrackOut()) status += 8;
256 if (gMC->IsTrackDisappeared()) status += 16;
257 if (gMC->IsTrackStop()) status += 32;
258 if (gMC->IsTrackAlive()) status += 64;
260 // ---------- Fill hit structure
262 hit.SetDetElemID(detElemID);
263 hit.SetPlane(planeNumber.Atoi());
264 hit.SetTrack(gAlice->GetMCApp()->GetCurrentTrackNumber());
266 gMC->TrackPosition(position);
267 gMC->TrackMomentum(momentum);
269 AliDebug(1, Form("AliMFT::StepManager()->%s Hit #%06d (x=%f, y=%f, z=%f) belongs to track %02d\n",
270 gMC->CurrentVolName(), fNhits, position.X(), position.Y(), position.Z(), gAlice->GetMCApp()->GetCurrentTrackNumber()));
272 hit.SetPosition(position);
273 hit.SetTOF(gMC->TrackTime());
274 hit.SetMomentum(momentum);
275 hit.SetStatus(status);
276 hit.SetEloss(gMC->Edep());
277 // hit.SetShunt(GetIshunt());
278 // if (gMC->IsTrackEntering()) {
279 // hit.SetStartPosition(position);
280 // hit.SetStartTime(gMC->TrackTime());
281 // hit.SetStartStatus(status);
282 // return; // don't save entering hit.
285 // Fill hit structure with this new hit.
286 new ((*fHits)[fNhits++]) AliMFTHit(hit);
288 // Save old position... for next hit.
289 // hit.SetStartPosition(position);
290 // hit.SetStartTime(gMC->TrackTime());
291 // hit.SetStartStatus(status);
297 //====================================================================================================================================================
299 TGeoVolumeAssembly* AliMFT::CreateVol() {
301 // method to create the MFT Geometry (silicon circular planes)
303 if (!fSegmentation) CreateGeometry();
305 TGeoVolumeAssembly *vol = new TGeoVolumeAssembly("MFT");
306 TGeoMedium *silicon = gGeoManager->GetMedium("MFT_Si");
307 TGeoMedium *readout = gGeoManager->GetMedium("MFT_Readout");
308 TGeoMedium *support = gGeoManager->GetMedium("MFT_Support");
309 for (Int_t iPar=0; iPar<8; iPar++) AliInfo(Form("silicon->GetParam(%d) = %f", iPar, silicon->GetParam(iPar)));
310 for (Int_t iPar=0; iPar<8; iPar++) AliInfo(Form("readout->GetParam(%d) = %f", iPar, readout->GetParam(iPar)));
311 for (Int_t iPar=0; iPar<8; iPar++) AliInfo(Form("support->GetParam(%d) = %f", iPar, support->GetParam(iPar)));
313 Double_t origin[3] = {0};
315 for (Int_t iPlane=0; iPlane<fNPlanes; iPlane++) {
317 AliDebug(1, Form("Creating volumes for MFT plane %02d",iPlane));
319 AliMFTPlane *plane = fSegmentation->GetPlane(iPlane);
321 // --------- support element(s)
323 origin[0] = 0.5*(plane->GetSupportElement(0)->GetAxis(0)->GetXmax() + plane->GetSupportElement(0)->GetAxis(0)->GetXmin());
324 origin[1] = 0.5*(plane->GetSupportElement(0)->GetAxis(1)->GetXmax() + plane->GetSupportElement(0)->GetAxis(1)->GetXmin());
325 origin[2] = -0.5*(plane->GetSupportElement(0)->GetAxis(2)->GetXmax() + plane->GetSupportElement(0)->GetAxis(2)->GetXmin());
326 TGeoVolume *supportElem = gGeoManager->MakeTube(Form("MFT_plane%02d_support", iPlane), support,
327 plane->GetRMinSupport(),
328 plane->GetRMaxSupport(),
329 0.5*(plane->GetSupportElement(0)->GetAxis(2)->GetXmax() -
330 plane->GetSupportElement(0)->GetAxis(2)->GetXmin()) );
331 AliDebug(2, Form("Created vol %s", supportElem->GetName()));
332 supportElem->SetLineColor(kCyan-9);
333 vol -> AddNode(supportElem, 0, new TGeoTranslation(origin[0], origin[1], origin[2]));
335 AliDebug(1, "support elements created!");
337 // --------- active elements
339 for (Int_t iActive=0; iActive<plane->GetNActiveElements(); iActive++) {
341 Double_t dx = 0.5*TMath::Abs(plane->GetActiveElement(iActive)->GetAxis(0)->GetXmax() - plane->GetActiveElement(iActive)->GetAxis(0)->GetXmin());
342 Double_t dy = 0.5*TMath::Abs(plane->GetActiveElement(iActive)->GetAxis(1)->GetXmax() - plane->GetActiveElement(iActive)->GetAxis(1)->GetXmin());
343 Double_t dz = 0.5*TMath::Abs(plane->GetActiveElement(iActive)->GetAxis(2)->GetXmax() - plane->GetActiveElement(iActive)->GetAxis(2)->GetXmin());
344 dz /= Double_t(fNSlices);
346 origin[0] = 0.5*(plane->GetActiveElement(iActive)->GetAxis(0)->GetXmax() + plane->GetActiveElement(iActive)->GetAxis(0)->GetXmin());
347 origin[1] = 0.5*(plane->GetActiveElement(iActive)->GetAxis(1)->GetXmax() + plane->GetActiveElement(iActive)->GetAxis(1)->GetXmin());
349 for (Int_t iSlice=0; iSlice<fNSlices; iSlice++) {
350 origin[2] = -0.5*(plane->GetActiveElement(iActive)->GetAxis(2)->GetXmin() + 2*dz*(iSlice+1) + plane->GetActiveElement(iActive)->GetAxis(2)->GetXmin() + 2*dz*(iSlice) );
351 TGeoVolume *activeElem = gGeoManager->MakeBox(Form("MFT_plane%02d_active%03d_slice%02d", iPlane, iActive, iSlice), silicon, dx, dy, dz);
352 AliDebug(2, Form("Created vol %s", activeElem->GetName()));
353 activeElem->SetLineColor(kGreen);
354 vol -> AddNode(activeElem, 0, new TGeoTranslation(origin[0], origin[1], origin[2]));
359 AliDebug(1, "active elements created!");
361 // --------- readout elements
363 for (Int_t iReadout=0; iReadout<plane->GetNReadoutElements(); iReadout++) {
365 Double_t dx = 0.5*TMath::Abs(plane->GetReadoutElement(iReadout)->GetAxis(0)->GetXmax() - plane->GetReadoutElement(iReadout)->GetAxis(0)->GetXmin());
366 Double_t dy = 0.5*TMath::Abs(plane->GetReadoutElement(iReadout)->GetAxis(1)->GetXmax() - plane->GetReadoutElement(iReadout)->GetAxis(1)->GetXmin());
367 Double_t dz = 0.5*TMath::Abs(plane->GetReadoutElement(iReadout)->GetAxis(2)->GetXmax() - plane->GetReadoutElement(iReadout)->GetAxis(2)->GetXmin());
369 origin[0] = 0.5*(plane->GetReadoutElement(iReadout)->GetAxis(0)->GetXmax() + plane->GetReadoutElement(iReadout)->GetAxis(0)->GetXmin());
370 origin[1] = 0.5*(plane->GetReadoutElement(iReadout)->GetAxis(1)->GetXmax() + plane->GetReadoutElement(iReadout)->GetAxis(1)->GetXmin());
371 origin[2] = -0.5*(plane->GetReadoutElement(iReadout)->GetAxis(2)->GetXmax() + plane->GetReadoutElement(iReadout)->GetAxis(2)->GetXmin());
373 TGeoVolume *readoutElem = gGeoManager->MakeBox(Form("MFT_plane%02d_readout%03d", iPlane, iReadout), readout, dx, dy, dz);
374 AliDebug(2, Form("Created vol %s", readoutElem->GetName()));
375 readoutElem->SetLineColor(kRed);
376 vol -> AddNode(readoutElem, 0, new TGeoTranslation(origin[0], origin[1], origin[2]));
380 AliDebug(1, "readout elements created!");
388 //====================================================================================================================================================
390 void AliMFT::Hits2SDigits(){
392 // Interface method invoked from AliSimulation to create a list of sdigits corresponding to list of hits. Every hit generates one sdigit.
394 AliDebug(1,"Start Hits2SDigits.");
396 if (!fSegmentation) CreateGeometry();
398 if (!fLoader->TreeH()) fLoader->LoadHits();
400 if (!fLoader->TreeS()) {
402 for (Int_t iEvt=0;iEvt<fLoader->GetRunLoader()->GetNumberOfEvents(); iEvt++) {
404 fLoader->GetRunLoader()->GetEvent(iEvt);
405 fLoader->MakeTree("S");
409 AliDebug(1, Form("Event %03d: fLoader->TreeH()->GetEntries() = %2d", iEvt, Int_t(fLoader->TreeH()->GetEntries())));
411 for (Int_t iTrack=0; iTrack<fLoader->TreeH()->GetEntries(); iTrack++) {
412 fLoader->TreeH()->GetEntry(iTrack);
413 Hits2SDigitsLocal(Hits(), GetSDigitsList(), iTrack); // convert these hits to a list of sdigits
416 fLoader->TreeS()->Fill();
417 fLoader->WriteSDigits("OVERWRITE");
423 fLoader->UnloadHits();
424 fLoader->UnloadSDigits();
426 AliDebug(1,"Stop Hits2SDigits.");
430 //====================================================================================================================================================
432 void AliMFT::Hits2SDigitsLocal(TClonesArray *hits, const TObjArray *pSDig, Int_t track) {
434 // Add sdigits of these hits to the list
436 AliDebug(1, "Entering Hits2SDigitsLocal");
438 if (!fSegmentation) CreateGeometry();
440 TClonesArray *pSDigList[fNMaxPlanes];
441 for (Int_t iPlane=0; iPlane<fNMaxPlanes; iPlane++) pSDigList[iPlane] = NULL;
442 for (Int_t iPlane=0; iPlane<fNPlanes; iPlane++) {
443 pSDigList[iPlane] = (TClonesArray*) (*pSDig)[iPlane];
444 AliDebug(1,Form("Entries of pSDigList %3d; plane: %02d,",pSDigList[iPlane]->GetEntries(),iPlane));
445 if (!track && pSDigList[iPlane]->GetEntries()!=0) AliErrorClass("Some of sdigits lists is not empty");
448 for (Int_t iHit=0; iHit<hits->GetEntries(); iHit++) {
450 AliMFTHit *hit = (AliMFTHit*) hits->At(iHit);
452 // Creating "main digit"
454 AliMFTDigit *mainSDigit = new AliMFTDigit();
455 mainSDigit->SetEloss(hit->GetEloss());
456 mainSDigit->SetDetElemID(hit->GetDetElemID());
457 mainSDigit->SetPlane(hit->GetPlane());
458 mainSDigit->AddMCLabel(hit->GetTrack());
462 if (fSegmentation->Hit2PixelID(hit->X(), hit->Y(), mainSDigit->GetDetElemID(), xPixel, yPixel)) {
463 mainSDigit->SetPixID(xPixel, yPixel, 0);
464 mainSDigit->SetPixWidth(fSegmentation->GetPixelSizeX(mainSDigit->GetDetElemID()),
465 fSegmentation->GetPixelSizeY(mainSDigit->GetDetElemID()),
466 fSegmentation->GetPixelSizeZ(mainSDigit->GetDetElemID()));
467 mainSDigit->SetPixCenter(fSegmentation->GetPixelCenterX(mainSDigit->GetDetElemID(), xPixel),
468 fSegmentation->GetPixelCenterY(mainSDigit->GetDetElemID(), yPixel),
469 fSegmentation->GetPixelCenterZ(mainSDigit->GetDetElemID(), 0));
470 new ((*fSideDigits)[fSideDigits->GetEntries()]) AliMFTDigit(*mainSDigit);
471 AliDebug(1, Form("Created new sdigit (%f, %f, %f) from hit (%f, %f, %f)",
472 mainSDigit->GetPixelCenterX(), mainSDigit->GetPixelCenterY(), mainSDigit->GetPixelCenterZ(), hit->X(), hit->Y(), hit->Z()));
475 // creating "side digits" to simulate the effect of charge dispersion
477 Double_t pi4 = TMath::Pi()/4.;
478 for (Int_t iStep=0; iStep<fNStepForChargeDispersion; iStep++) {
479 Double_t shift = (iStep+1) * fSingleStepForChargeDispersion;
480 for (Int_t iAngle=0; iAngle<8; iAngle++) {
481 Double_t shiftX = shift*TMath::Cos(iAngle*pi4);
482 Double_t shiftY = shift*TMath::Sin(iAngle*pi4);
483 if (fSegmentation->Hit2PixelID(hit->X()+shiftX, hit->Y()+shiftY, hit->GetDetElemID(), xPixel, yPixel)) {
484 Bool_t digitExists = kFALSE;
485 for (Int_t iSideDigit=0; iSideDigit<fSideDigits->GetEntries(); iSideDigit++) {
486 if (xPixel==((AliMFTDigit*) fSideDigits->At(iSideDigit))->GetPixelX() &&
487 yPixel==((AliMFTDigit*) fSideDigits->At(iSideDigit))->GetPixelY()) {
493 AliMFTDigit *sideSDigit = new AliMFTDigit();
494 sideSDigit->SetEloss(0.);
495 sideSDigit->SetDetElemID(hit->GetDetElemID());
496 sideSDigit->SetPlane(hit->GetPlane());
497 sideSDigit->AddMCLabel(hit->GetTrack());
498 sideSDigit->SetPixID(xPixel, yPixel, 0);
499 sideSDigit->SetPixWidth(fSegmentation->GetPixelSizeX(sideSDigit->GetDetElemID()),
500 fSegmentation->GetPixelSizeY(sideSDigit->GetDetElemID()),
501 fSegmentation->GetPixelSizeZ(sideSDigit->GetDetElemID()));
502 sideSDigit->SetPixCenter(fSegmentation->GetPixelCenterX(sideSDigit->GetDetElemID(), xPixel),
503 fSegmentation->GetPixelCenterY(sideSDigit->GetDetElemID(), yPixel),
504 fSegmentation->GetPixelCenterZ(sideSDigit->GetDetElemID(), 0));
505 new ((*fSideDigits)[fSideDigits->GetEntries()]) AliMFTDigit(*sideSDigit);
511 // ------------ In case we should simulate a rectangular pattern of pixel...
513 if (fSegmentation->GetPlane(mainSDigit->GetPlane())->HasPixelRectangularPatternAlongY()) {
514 for (Int_t iSDigit=0; iSDigit<fSideDigits->GetEntries(); iSDigit++) {
515 AliMFTDigit *mySDig = (AliMFTDigit*) (fSideDigits->At(iSDigit));
516 if (mySDig->GetPixelX()%2 == mySDig->GetPixelY()%2) { // both pair or both odd
517 xPixel = mySDig->GetPixelX();
518 yPixel = mySDig->GetPixelY()+1;
519 if (fSegmentation->DoesPixelExist(mySDig->GetDetElemID(), xPixel, yPixel)) {
520 AliMFTDigit *newSDigit = new AliMFTDigit();
521 newSDigit->SetEloss(0.);
522 newSDigit->SetDetElemID(mySDig->GetDetElemID());
523 newSDigit->SetPlane(mySDig->GetDetElemID());
524 newSDigit->SetPixID(xPixel, yPixel, 0);
525 newSDigit->SetPixWidth(fSegmentation->GetPixelSizeX(newSDigit->GetDetElemID()),
526 fSegmentation->GetPixelSizeY(newSDigit->GetDetElemID()),
527 fSegmentation->GetPixelSizeZ(newSDigit->GetDetElemID()));
528 newSDigit->SetPixCenter(fSegmentation->GetPixelCenterX(newSDigit->GetDetElemID(), xPixel),
529 fSegmentation->GetPixelCenterY(newSDigit->GetDetElemID(), yPixel),
530 fSegmentation->GetPixelCenterZ(newSDigit->GetDetElemID(), 0));
531 new ((*fSideDigits)[fSideDigits->GetEntries()]) AliMFTDigit(*newSDigit);
535 xPixel = mySDig->GetPixelX();
536 yPixel = mySDig->GetPixelY()-1;
537 if (fSegmentation->DoesPixelExist(mySDig->GetDetElemID(), xPixel, yPixel)) {
538 AliMFTDigit *newSDigit = new AliMFTDigit();
539 newSDigit->SetEloss(0.);
540 newSDigit->SetDetElemID(mySDig->GetDetElemID());
541 newSDigit->SetPlane(mySDig->GetPlane());
542 newSDigit->SetPixID(xPixel, yPixel, 0);
543 newSDigit->SetPixWidth(fSegmentation->GetPixelSizeX(newSDigit->GetDetElemID()),
544 fSegmentation->GetPixelSizeY(newSDigit->GetDetElemID()),
545 fSegmentation->GetPixelSizeZ(newSDigit->GetDetElemID()));
546 newSDigit->SetPixCenter(fSegmentation->GetPixelCenterX(newSDigit->GetDetElemID(), xPixel),
547 fSegmentation->GetPixelCenterY(newSDigit->GetDetElemID(), yPixel),
548 fSegmentation->GetPixelCenterZ(newSDigit->GetDetElemID(), 0));
549 new ((*fSideDigits)[fSideDigits->GetEntries()]) AliMFTDigit(*newSDigit);
555 // -------- checking which pixels switched on have their diode actually within the charge dispersion radius
557 for (Int_t iSDigit=0; iSDigit<fSideDigits->GetEntries(); iSDigit++) {
558 AliMFTDigit *mySDig = (AliMFTDigit*) (fSideDigits->At(iSDigit));
559 Double_t distance = TMath::Sqrt(TMath::Power(mySDig->GetPixelCenterX()-hit->X(),2) + TMath::Power(mySDig->GetPixelCenterY()-hit->Y(),2));
560 if (fSegmentation->GetPlane(mySDig->GetPlane())->HasPixelRectangularPatternAlongY()) {
561 if (mySDig->GetPixelX()%2 == mySDig->GetPixelY()%2) { // both pair or both odd
562 if (distance<fChargeDispersion) {
563 AliDebug(1, Form("Created new sdigit (%f, %f, %f) from hit (%f, %f, %f)",
564 mySDig->GetPixelCenterX(), mySDig->GetPixelCenterY(), mySDig->GetPixelCenterZ(), hit->X(), hit->Y(), hit->Z()));
565 new ((*pSDigList[mySDig->GetPlane()])[pSDigList[mySDig->GetPlane()]->GetEntries()]) AliMFTDigit(*mySDig);
566 xPixel = mySDig->GetPixelX();
567 yPixel = mySDig->GetPixelY()+1;
568 if (fSegmentation->DoesPixelExist(mySDig->GetDetElemID(), xPixel, yPixel)) {
569 AliMFTDigit *newSDigit = new AliMFTDigit();
570 newSDigit->SetEloss(0.);
571 newSDigit->SetDetElemID(mySDig->GetDetElemID());
572 newSDigit->SetPlane(mySDig->GetPlane());
573 newSDigit->SetPixID(xPixel, yPixel, 0);
574 newSDigit->SetPixWidth(fSegmentation->GetPixelSizeX(newSDigit->GetDetElemID()),
575 fSegmentation->GetPixelSizeY(newSDigit->GetDetElemID()),
576 fSegmentation->GetPixelSizeZ(newSDigit->GetDetElemID()));
577 newSDigit->SetPixCenter(fSegmentation->GetPixelCenterX(newSDigit->GetDetElemID(), xPixel),
578 fSegmentation->GetPixelCenterY(newSDigit->GetDetElemID(), yPixel),
579 fSegmentation->GetPixelCenterZ(newSDigit->GetDetElemID(), 0));
580 AliDebug(1, Form("Created new sdigit (%f, %f, %f) from hit (%f, %f, %f)",
581 newSDigit->GetPixelCenterX(), newSDigit->GetPixelCenterY(), newSDigit->GetPixelCenterZ(), hit->X(), hit->Y(), hit->Z()));
582 new ((*pSDigList[newSDigit->GetPlane()])[pSDigList[newSDigit->GetPlane()]->GetEntries()]) AliMFTDigit(*newSDigit);
588 if (distance<fChargeDispersion) {
589 AliDebug(1, Form("Created new sdigit (%f, %f, %f) from hit (%f, %f, %f)",
590 mySDig->GetPixelCenterX(), mySDig->GetPixelCenterY(), mySDig->GetPixelCenterZ(), hit->X(), hit->Y(), hit->Z()));
591 new ((*pSDigList[mySDig->GetPlane()])[pSDigList[mySDig->GetPlane()]->GetEntries()]) AliMFTDigit(*mySDig);
596 fSideDigits->Delete();
600 AliDebug(1,"Exiting Hits2SDigitsLocal");
604 //====================================================================================================================================================
606 void AliMFT::MakeBranch(Option_t *option) {
608 // Create Tree branches
609 AliDebug(1, Form("Start with option= %s.",option));
611 const Int_t kBufSize = 4000;
613 const Char_t *cH = strstr(option,"H");
614 const Char_t *cD = strstr(option,"D");
615 const Char_t *cS = strstr(option,"S");
617 if (cH && fLoader->TreeH()) {
619 MakeBranchInTree(fLoader->TreeH(), "MFT", &fHits, kBufSize, 0);
622 if (cS && fLoader->TreeS()) {
624 for(Int_t iPlane=0; iPlane<fNPlanes; iPlane++) MakeBranchInTree(fLoader->TreeS(),
625 Form("Plane_%02d",iPlane),
626 &((*fSDigitsPerPlane)[iPlane]),
630 if (cD && fLoader->TreeD()) {
632 for(Int_t iPlane=0; iPlane<fNPlanes; iPlane++) MakeBranchInTree(fLoader->TreeD(),
633 Form("Plane_%02d",iPlane),
634 &((*fDigitsPerPlane)[iPlane]),
642 //====================================================================================================================================================
644 void AliMFT::SetTreeAddress() {
646 AliDebug(1, "AliMFT::SetTreeAddress()");
648 //Set branch address for the Hits and Digits Tree.
649 AliDebug(1, "Start.");
651 AliDebug(1, Form("AliMFT::SetTreeAddress Hits fLoader->TreeH() = %p\n", fLoader->TreeH()));
652 if (fLoader->TreeH() && fLoader->TreeH()->GetBranch("MFT")) {
654 fLoader->TreeH()->SetBranchAddress("MFT", &fHits);
657 AliDebug(1, Form("AliMFT::SetTreeAddress SDigits fLoader->TreeS() = %p\n", fLoader->TreeS()));
658 if (fLoader->TreeS() && fLoader->TreeS()->GetBranch("Plane_00")) {
660 for(Int_t iPlane=0; iPlane<fNPlanes; iPlane++) {
661 fLoader->TreeS()->SetBranchAddress(Form("Plane_%02d",iPlane), &((*fSDigitsPerPlane)[iPlane]));
665 AliDebug(1, Form("AliMFT::SetTreeAddress Digits fLoader->TreeD() = %p\n", fLoader->TreeD()));
666 if (fLoader->TreeD() && fLoader->TreeD()->GetBranch("Plane_00")) {
668 for(Int_t iPlane=0; iPlane<fNPlanes; iPlane++) {
669 fLoader->TreeD()->SetBranchAddress(Form("Plane_%02d",iPlane), &((*fDigitsPerPlane)[iPlane]));
673 AliDebug(1, Form("AliMFT::SetTreeAddress RecPoints fLoader->TreeR() = %p\n", fLoader->TreeR()));
674 if (fLoader->TreeR() && fLoader->TreeR()->GetBranch("Plane_00")) {
676 for(Int_t iPlane=0; iPlane<fNPlanes; iPlane++) {
677 fLoader->TreeR()->SetBranchAddress(Form("Plane_%02d",iPlane), &((*fRecPointsPerPlane)[iPlane]));
685 //====================================================================================================================================================
687 void AliMFT::SetGeometry() {
689 AliInfo("AliMFT::SetGeometry\n");
691 fSegmentation = new AliMFTSegmentation(fNameGeomFile.Data());
693 fNPlanes = fSegmentation->GetNPlanes();
697 //====================================================================================================================================================
699 void AliMFT::CreateHits() {
701 // create array of hits
703 AliDebug(1, "AliMFT::CreateHits()");
706 fHits = new TClonesArray("AliMFTHit");
710 //====================================================================================================================================================
712 void AliMFT::CreateSDigits() {
714 // create sdigits list
716 AliDebug(1, "AliMFT::CreateSDigits()");
718 if (fSDigitsPerPlane) return;
719 fSDigitsPerPlane = new TObjArray(fNPlanes);
720 for (Int_t iPlane=0; iPlane<fNPlanes; iPlane++) fSDigitsPerPlane->AddAt(new TClonesArray("AliMFTDigit"), iPlane);
722 fSideDigits = new TClonesArray("AliMFTDigit");
726 //====================================================================================================================================================
728 void AliMFT::CreateDigits() {
730 // create digits list
732 AliDebug(1, "AliMFT::CreateDigits()");
734 if (fDigitsPerPlane) return;
735 fDigitsPerPlane = new TObjArray(fNPlanes);
736 for(Int_t iPlane=0; iPlane<fNPlanes; iPlane++) fDigitsPerPlane->AddAt(new TClonesArray("AliMFTDigit"), iPlane);
740 //====================================================================================================================================================
742 void AliMFT::CreateRecPoints() {
744 // create recPoints list
746 AliDebug(1, "AliMFT::CreateRecPoints()");
748 if (fRecPointsPerPlane) return;
749 fRecPointsPerPlane = new TObjArray(fNPlanes);
750 for(Int_t iPlane=0; iPlane<fNPlanes; iPlane++) fRecPointsPerPlane->AddAt(new TClonesArray("AliMFTCluster"), iPlane);
754 //====================================================================================================================================================