* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
- /////////////////////////////////////////////////////////////////////
-// //
-// Forward Multiplicity detector based on Silicon version 0 //
-//
-//Begin Html
-/*
-<img src="gif/AliFMDv0Class.gif">
+/* $Id$ */
+/** @file AliFMDv1.cxx
+ @author Christian Holm Christensen <cholm@nbi.dk>
+ @date Mon Mar 27 12:48:51 2006
+ @brief Concrete implementation of FMD detector driver - detailed
+ version
+ @ingroup FMD_sim
*/
-//End Html
-// //
-// //
-//////////////////////////////////////////////////////////////////////
-
-#include <TMath.h>
-#include <TGeometry.h>
-#include <TTUBE.h>
-#include <TFile.h>
-#include <TTree.h>
-#include <TNode.h>
-#include <TClonesArray.h>
-#include <TLorentzVector.h>
-#include <TDirectory.h>
-#include "AliFMDv1.h"
-#include "AliFMDv0.h"
-#include "AliRun.h"
-#include "AliMC.h"
-#include <iostream.h>
-#include <fstream.h>
-#include "AliMagF.h"
-#include "AliFMDhit.h"
-#include "AliFMDdigit.h"
-#include <stdlib.h>
-//#include "TGeant3.h"
-//class TGeant3;
+//____________________________________________________________________
+//
+// Forward Multiplicity Detector based on Silicon wafers. This class
+// contains the base procedures for the Forward Multiplicity detector
+// Detector consists of 3 sub-detectors FMD1, FMD2, and FMD3, each of
+// which has 1 or 2 rings of silicon sensors.
+// This class contains the detailed version of the FMD - that is, hits
+// are produced during simulation.
+//
+// See also the class AliFMD for a more detailed explanation of the
+// various componets.
+//
+#include <TVirtualMC.h> // ROOT_TVirtualMC
+#include <AliRun.h> // ALIRUN_H
+#include <AliMC.h> // ALIMC_H
+#include <AliLog.h> // ALILOG_H
+#include "AliFMDv1.h" // ALIFMDV1_H
+// #include "AliFMDGeometryBuilder.h"
+#include "AliFMDGeometry.h"
+#include "AliFMDDetector.h"
+#include "AliFMDRing.h"
+#include <TParticlePDG.h>
+#include <TDatabasePDG.h>
+#include "AliFMDHit.h"
+
+//____________________________________________________________________
ClassImp(AliFMDv1)
+#if 0
+ ; // This is here to keep Emacs for indenting the next line
+#endif
-//--------------------------------------------------------------------
-AliFMDv1::AliFMDv1(const char *name, const char *title):
- AliFMD(name,title)
-{
- //
- // Standart constructor for Forward Multiplicity Detector version 0
- //
- fIdSens1=0;
- fIdSens2=0;
- fIdSens3=0;
- fIdSens4=0;
- fIdSens5=0;
-// setBufferSize(128000);
-}
-//-------------------------------------------------------------------------
-void AliFMDv1::CreateGeometry()
-{
- //
- // Create the geometry of Forward Multiplicity Detector version 0
- //
- //Detector consists of 6 volumes:
- // 1st covered pseudorapidity interval from 3.3 to 2.0
- // and placed on 65cm in Z-direction;
- // 2nd - from 2.0 to 1.6 and Z=85 cm;
- // 3d - the same pseudorapidity interval as the 1st
- // but on the other side from the interaction point z=-65cm;
- // 4th - simmetricaly with the 2nd :
- // pseudorapidity from 2.0 to 1.6, Z=-85cm
- // 5th - from 3.6 to 4.7, Z=-270cm
- // 6th - from 4.5 to 5.5 , Z=-630cm.
- // Each part has 400mkm Si (sensetive area, detector itself),
- // 0.75cm of plastic simulated electronics material,
- // Al support ring 2cm thickness and 1cm width placed on
- // the outer radius of each Si disk;
- //
- // begin Html
- /*
- <img src="gif/AliFMDv0.gif">
- */
- //
+//____________________________________________________________________
+Bool_t
+AliFMDv1::VMC2FMD(TLorentzVector& v, UShort_t& detector,
+ Char_t& ring, UShort_t& sector, UShort_t& strip) const
+{
+ // Convert VMC coordinates to detector coordinates
+ TVirtualMC* mc = TVirtualMC::GetMC();
+ AliFMDGeometry* fmd = AliFMDGeometry::Instance();
+
+ // Get track position
+ mc->TrackPosition(v);
+ Int_t moduleno; mc->CurrentVolOffID(fmd->GetModuleOff(), moduleno);
+ Int_t iring; mc->CurrentVolOffID(fmd->GetRingOff(), iring);
+ ring = Char_t(iring);
+ Int_t det; mc->CurrentVolOffID(fmd->GetDetectorOff(), det);
+ detector = det;
- Int_t *idtmed = fIdtmed->GetArray();
-
- Int_t ifmd;
- Int_t idrotm[999];
- Float_t zfmd,par[3];
- char name[5], nameSi[5], nameSector[5], nameRing[5];
-
- Float_t rin[6], rout[6],zpos;
-
- Float_t etain[5]= {3.40, 2.29, 3.68, 2.29, 5.09};
- Float_t etaout[6]={2.01, 1.70, 2.28, 1.70, 3.68};
- // Float_t z[6]={64., 85., -64., -85., -270., -630};
- Float_t z[6]={62.8, 75.2, -83.4, -75.2, -340.};
- Float_t zDet=0.03;
- Float_t zElectronic=0.1;
- Float_t zSupport=1.;
-
- Float_t zFMD=1.;
-//-------------------------------------------------------------------
- // FMD
- //------------------------------------------------------------------
- cout<<" !!!!!!!!!!!New FMD geometry !!!!!!!!!"<<endl;
-
- AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0);
-
- // gMC->Gsvolu("GSI","TUBE", idtmed[1], par, 0);
- gMC->Gsvolu("GEL ","TUBE", idtmed[4], par, 0);
- gMC->Gsvolu("GSUP","TUBE", idtmed[2], par, 0);
-
- for (ifmd =0; ifmd < 5; ifmd++){
-
- sprintf(name,"FMD%d",ifmd+1);
- sprintf(nameSi,"GSI%d",ifmd+1);
- sprintf(nameSector,"GSC%d",ifmd+1);
- sprintf(nameRing,"GRN%d",ifmd+1);
-
- zfmd=TMath::Abs(z[ifmd]);
- AliFMD::Eta2Radius(etain[ifmd],zfmd,&rin[ifmd]);
- AliFMD::Eta2Radius(etaout[ifmd],zfmd,&rout[ifmd]);
-
- par[0]=rin[ifmd]; // pipe size
- par[1]=rout[ifmd];
- par[2]=zFMD/2;
- gMC->Gsvolu(name,"TUBE", idtmed[3], par, 3);
- gMC->Gsvolu(nameSi,"TUBE", idtmed[1], par, 0);
-
- if (z[ifmd] < 0){
- gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],0, "ONLY");}
- else {
- gMC->Gspos(name,1,"ALIC",0,0,z[ifmd],idrotm[901], "ONLY");}
- //Silicon detector
- par[2]=zDet/2;
- zpos=zFMD/2 -par[2];
- gMC->Gsposp(nameSi,ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
-
- //Granularity
- fSectorsSi1=20;
- fRingsSi1=256;
- fSectorsSi2=40;
- fRingsSi2=128;
- if(ifmd==1||ifmd==3)
- {
- gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2);
- gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1);
- }
- else
- {
- gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2);
- gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1);
- }
-
- //Plastic slice for electronics
- par[2]=zElectronic/2;
- zpos=zpos-zDet/2-par[2];
- gMC->Gsposp("GEL ",ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
-
- //Simple Al support
- par[1]=rout[ifmd];
- par[0]=rout[ifmd]-2;
- par[2]=zSupport/2;
- zpos=zpos-zElectronic/2-par[2];
- // gMC->Gsposp("GSUP",ifmd+1,name,0,0,zpos,0, "ONLY",par,3);
-
-
- }
-
-}
+ // Get the ring geometry
+ //Int_t nsec = fmd->GetDetector(detector)->GetRing(ring)->GetNSectors();
+ Int_t nstr = fmd->GetDetector(detector)->GetRing(ring)->GetNStrips();
+ Double_t lowr = fmd->GetDetector(detector)->GetRing(ring)->GetMinR();
+ Double_t theta = fmd->GetDetector(detector)->GetRing(ring)->GetTheta();
+ Double_t pitch = fmd->GetDetector(detector)->GetRing(ring)->GetPitch();
+
+ // Figure out the strip number
+ Double_t r = TMath::Sqrt(v.X() * v.X() + v.Y() * v.Y());
+ Int_t str = Int_t((r - lowr) / pitch);
+ if (str < 0 || str >= nstr) return kFALSE;
+ strip = str;
+
+ // Figure out the sector number
+ Double_t phi = TMath::ATan2(v.Y(), v.X()) * 180. / TMath::Pi();
+ if (phi < 0) phi = 360. + phi;
+ Double_t t = phi - 2 * moduleno * theta;
+ sector = 2 * moduleno;
+ if (t < 0 || t > 2 * theta) return kFALSE;
+ else if (t > theta) sector += 1;
+
+ AliDebug(40, Form("<1> Inside an active FMD volume FMD%d%c[%2d,%3d] %s",
+ detector, ring, sector, strip, mc->CurrentVolPath()));
+ return kTRUE;
+}
-//------------------------------------------------------------------------
-void AliFMDv1::CreateMaterials()
+//____________________________________________________________________
+Bool_t
+AliFMDv1::VMC2FMD(Int_t copy, TLorentzVector& v,
+ UShort_t& detector, Char_t& ring,
+ UShort_t& sector, UShort_t& strip) const
{
- Int_t isxfld = gAlice->Field()->Integ();
- Float_t sxmgmx = gAlice->Field()->Max();
-
- // Plastic CH
- Float_t aPlastic[2]={1.01,12.01};
- Float_t zPlastic[2]={1,6};
- Float_t wPlastic[2]={1,1};
- Float_t denPlastic=1.03;
- //
-
- //*** Definition Of avaible FMD materials ***
- AliMaterial(0, "Si chip$", 28.0855,14.,2.33,9.36,999);
- AliMaterial(1, "Al supprt$", 26.980,13.,2.70,8.9,999);
- AliMaterial(2, "FMD Air$", 14.61, 7.3, .001205, 30423.,999);
- AliMixture( 5, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic);
-
-
-//**
- AliMedium(1, "Si chip$", 0, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001);
- AliMedium(2, "Al support$", 1, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
- AliMedium(3, "FMD air$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
- AliMedium(4, "Plastic$", 5, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003);
-
-
+ // Convert VMC coordinates to detector coordinates
+ TVirtualMC* mc = TVirtualMC::GetMC();
+ AliFMDGeometry* fmd = AliFMDGeometry::Instance();
+
+ strip = copy - 1;
+ Int_t sectordiv; mc->CurrentVolOffID(fmd->GetSectorOff(), sectordiv);
+ if (fmd->GetModuleOff() >= 0) {
+ Int_t module; mc->CurrentVolOffID(fmd->GetModuleOff(), module);
+ sector = 2 * module + sectordiv;
+ }
+ else
+ sector = sectordiv;
+ AliDebug(30, Form("Getting ring volume with offset %d -> %s",
+ fmd->GetRingOff(),
+ mc->CurrentVolOffName(fmd->GetRingOff())));
+ Int_t iring; mc->CurrentVolOffID(fmd->GetRingOff(), iring);
+ ring = Char_t(iring);
+ Int_t det; mc->CurrentVolOffID(fmd->GetDetectorOff(), det);
+ detector = det;
+
+ //Double_t rz = fmd->GetDetector(detector)->GetRingZ(ring);
+ AliFMDDetector* gdet = fmd->GetDetector(detector);
+ AliFMDRing* gring = gdet->GetRing(ring);
+ if (!gring) {
+ AliFatal(Form("Ring %c not found (volume was %s at offset %d in path %s)",
+ ring, fmd->GetRingOff(),
+ mc->CurrentVolOffName(fmd->GetRingOff()),
+ mc->CurrentVolPath()));
+ }
+ Int_t n = gring->GetNSectors();
+#if 0
+ if (rz < 0) {
+ Int_t s = ((n - sector + n / 2) % n) + 1;
+ AliDebug(1, Form("Recalculating sector to %d (=%d-%d+%d/2%%%d+1 z=%f)",
+ s, n, sector, n, n, rz));
+ sector = s;
+ }
+#endif
+ if (sector < 1 || sector > n) {
+ AliWarning(Form("sector # %d out of range (0-%d)", sector-1, n-1));
+ return kFALSE;
+ }
+ sector--;
+ // Get track position
+ mc->TrackPosition(v);
+ AliDebug(15, Form("<2> Inside an active FMD volume FMD%d%c[%2d,%3d] %s",
+ detector, ring, sector, strip, mc->CurrentVolPath()));
+ return kTRUE;
}
-//---------------------------------------------------------------------
-void AliFMDv1::DrawDetector()
-{
-//
-// Draw a shaded view of the Forward multiplicity detector version 0
-//
-AliMC* pMC = AliMC::GetMC();
-//Set ALIC mother transparent
-pMC->Gsatt("ALIC","SEEN",0);
-//
-//Set volumes visible
-gMC->Gsatt("FMD1","SEEN",1);
-gMC->Gsatt("FMD2","SEEN",1);
-gMC->Gsatt("FMD3","SEEN",1);
-gMC->Gsatt("FMD4","SEEN",1);
-gMC->Gsatt("FMD5","SEEN",1);
-
-//
-gMC->Gdopt("hide","on");
-gMC->Gdopt("shad","on");
-gMC->SetClipBox(".");
-gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
-gMC->DefaultRange();
-gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
-gMC->Gdhead(1111,"Forward multiplicity detector");
-gMC->Gdopt("hide","off");
-}
-//-------------------------------------------------------------------
-void AliFMDv1::Init()
+//____________________________________________________________________
+Bool_t
+AliFMDv1::CheckHit(Int_t trackno, Int_t pdg, Float_t absQ,
+ const TLorentzVector& p, Float_t edep) const
{
-// Initialises version 0 of the Forward Multiplicity Detector
-//
-AliMC* gMC=AliMC::GetMC();
-AliFMD::Init();
-fIdSens1=gMC->VolId("GRN1");
-fIdSens2=gMC->VolId("GRN2");
-fIdSens3=gMC->VolId("GRN3");
-fIdSens4=gMC->VolId("GRN4");
-fIdSens5=gMC->VolId("GRN5");
-printf("*** FMD version 1 initialized ***\n");
+ // Check that a hit is good
+ if (AliLog::GetDebugLevel("FMD", "AliFMD") < 5) return kFALSE;
+ TVirtualMC* mc = TVirtualMC::GetMC();
+ Double_t mass = mc->TrackMass();
+ Double_t poverm = (mass == 0 ? 0 : p.P() / mass);
+
+ // This `if' is to debug abnormal energy depositions. We trigger on
+ // p/m approx larger than or equal to a MIP, and a large edep - more
+ // than 1 keV - a MIP is 100 eV.
+ if (!(edep > absQ * absQ && poverm > 1)) return kFALSE;
+
+ TArrayI procs;
+ mc->StepProcesses(procs);
+ TString processes;
+ for (Int_t ip = 0; ip < procs.fN; ip++) {
+ if (ip != 0) processes.Append(",");
+ processes.Append(TMCProcessName[procs.fArray[ip]]);
+ }
+ TDatabasePDG* pdgDB = TDatabasePDG::Instance();
+ TParticlePDG* particleType = pdgDB->GetParticle(pdg);
+ TString pname(particleType ? particleType->GetName() : "???");
+ TString what;
+ if (mc->IsTrackEntering()) what.Append("entering ");
+ if (mc->IsTrackExiting()) what.Append("exiting ");
+ if (mc->IsTrackInside()) what.Append("inside ");
+ if (mc->IsTrackDisappeared()) what.Append("disappeared ");
+ if (mc->IsTrackStop()) what.Append("stopped ");
+ if (mc->IsNewTrack()) what.Append("new ");
+ if (mc->IsTrackAlive()) what.Append("alive ");
+ if (mc->IsTrackOut()) what.Append("out ");
+
+ Int_t mother = gAlice->GetMCApp()->GetPrimary(trackno);
+ AliDebug(15, Form("Track # %5d deposits a lot of energy\n"
+ " Volume: %s\n"
+ " Momentum: (%7.4f,%7.4f,%7.4f)\n"
+ " PDG: %d (%s)\n"
+ " Edep: %-14.7f keV (mother %d)\n"
+ " p/m: %-7.4f/%-7.4f = %-14.7f\n"
+ " Processes: %s\n"
+ " What: %s\n",
+ trackno, mc->CurrentVolPath(), p.X(), p.Y(), p.Z(),
+ pdg, pname.Data(), edep, mother, p.P(), mass,
+ poverm, processes.Data(), what.Data()));
+ return kTRUE;
}
-//-------------------------------------------------------------------
-void AliFMDv1::StepManager()
+//____________________________________________________________________
+void
+AliFMDv1::StepManager()
{
+ // Member function that is executed each time a hit is made in the
+ // FMD. None-charged particles are ignored. Dead tracks are
+ // ignored.
//
- // Called for every step in the Forward Multiplicity Detector
- //
- Int_t id,copy,copy1,copy2;
- static Float_t hits[9];
- static Int_t vol[3];
- static Float_t de;
- TLorentzVector pos;
- TLorentzVector mom;
-
-
- TClonesArray &lhits = *fHits;
- AliMC* gMC=AliMC::GetMC();
- if(!gMC->IsTrackAlive()) return; // particle has disappeared
-
- Float_t charge = gMC->TrackCharge();
- if(TMath::Abs(charge)<=0.) return; //take only charged particles
-
- // printf(" in StepManeger \n");
- id=gMC->CurrentVolID(copy);
- //((TGeant3*)gMC)->Gpcxyz();
+ // The procedure is as follows:
+ //
+ // - IF NOT track is alive THEN RETURN ENDIF
+ // - IF NOT particle is charged THEN RETURN ENDIF
+ // - IF NOT volume name is "STRI" or "STRO" THEN RETURN ENDIF
+ // - Get strip number (volume copy # minus 1)
+ // - Get phi division number (mother volume copy #)
+ // - Get module number (grand-mother volume copy #)
+ // - section # = 2 * module # + phi division # - 1
+ // - Get ring Id from volume name
+ // - Get detector # from grand-grand-grand-mother volume name
+ // - Get pointer to sub-detector object.
+ // - Get track position
+ // - IF track is entering volume AND track is inside real shape THEN
+ // - Reset energy deposited
+ // - Get track momentum
+ // - Get particle ID #
+ /// - ENDIF
+ // - IF track is inside volume AND inside real shape THEN
+ /// - Update energy deposited
+ // - ENDIF
+ // - IF track is inside real shape AND (track is leaving volume,
+ // or it died, or it is stopped THEN
+ // - Create a hit
+ // - ENDIF
+ //
+ TVirtualMC* mc = TVirtualMC::GetMC();
+ if (!mc->IsTrackAlive()) return;
+ Double_t absQ = TMath::Abs(mc->TrackCharge());
+ if (absQ <= 0) return;
-// Check the sensetive volume
- if(id==fIdSens1||id==fIdSens2||id==fIdSens3||id==fIdSens4||id==fIdSens5)
- {
- if(gMC->IsTrackEntering())
- {
- vol[2]=copy;
- gMC->CurrentVolOffID(1,copy1);
- vol[1]=copy1;
- gMC->CurrentVolOffID(2,copy2);
- vol[0]=copy2;
-
- gMC->TrackPosition(pos);
- hits[0]=pos[0];
- hits[1]=pos[1];
- hits[2]=pos[2];
-
- gMC->TrackMomentum(mom);
- hits[3]=mom[0];
- hits[4]=mom[1];
- hits[5]=mom[2];
-
- Int_t iPart= gMC->TrackPid();
- Int_t partId=gMC->IdFromPDG(iPart);
- hits[7]=partId;
- hits[8]=1e9*gMC->TrackTime();
- de=0.;
- }
- if(gMC->IsTrackInside()){
- de=de+1000.*gMC->Edep();
- }
-
- if(gMC->IsTrackExiting()
- ||gMC->IsTrackDisappeared()||
- gMC->IsTrackStop())
- {
- hits[6]=de+1000.*gMC->Edep();
- new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- } // IsTrackExiting()
- }
+ Int_t copy;
+ Int_t vol = mc->CurrentVolID(copy);
+ AliFMDGeometry* fmd = AliFMDGeometry::Instance();
+ if (!fmd->IsActive(vol)) {
+ AliDebug(50, Form("Not an FMD volume %d '%s'",vol,mc->CurrentVolName()));
+ return;
}
-//--------------------------------------------------------------------------
-
-void AliFMDv1::Response( Float_t Edep)
-{
- Float_t I=1.664*0.04*2.33/22400; // = 0.69e-6;
- Float_t chargeOnly=Edep/I;
- //Add noise ~500electrons
- Int_t charge=500;
- if (Edep>0)
- charge=Int_t(gRandom->Gaus(chargeOnly,500));
- }
-
-
-
-
-
-
+ TLorentzVector v;
+ UShort_t detector;
+ Char_t ring;
+ UShort_t sector;
+ UShort_t strip;
+
+ if (fmd->IsDetailed()) {
+ if (!VMC2FMD(copy, v, detector, ring, sector, strip)) return;
+ } else {
+ if (!VMC2FMD(v, detector, ring, sector, strip)) return;
+ }
+ TLorentzVector p;
+ mc->TrackMomentum(p);
+ Int_t trackno = gAlice->GetMCApp()->GetCurrentTrackNumber();
+ Int_t pdg = mc->TrackPid();
+ Double_t edep = mc->Edep() * 1000; // keV
+ Bool_t isBad = CheckHit(trackno, pdg, absQ, p, edep);
+
+ // Check that the track is actually within the active area
+ Bool_t entering = mc->IsTrackEntering();
+ Bool_t inside = mc->IsTrackInside();
+ Bool_t out = (mc->IsTrackExiting()|| mc->IsTrackDisappeared()||
+ mc->IsTrackStop());
+ // Reset the energy deposition for this track, and update some of
+ // our parameters.
+ if (entering) {
+ AliDebug(15, Form("Track # %8d entering active FMD volume %s: "
+ "Edep=%f (%f,%f,%f)", trackno, mc->CurrentVolPath(),
+ edep, v.X(), v.Y(), v.Z()));
+ fCurrentP = p;
+ fCurrentV = v;
+ fCurrentDeltaE = edep;
+ fCurrentPdg = pdg; // mc->IdFromPDG(pdg);
+ }
+ // If the track is inside, then update the energy deposition
+ if (inside && fCurrentDeltaE >= 0) {
+ fCurrentDeltaE += edep;
+ AliDebug(15, Form("Track # %8d inside active FMD volume %s: Edep=%f, "
+ "Accumulated Edep=%f (%f,%f,%f)", trackno,
+ mc->CurrentVolPath(), edep, fCurrentDeltaE,
+ v.X(), v.Y(), v.Z()));
+ }
+ // The track exits the volume, or it disappeared in the volume, or
+ // the track is stopped because it no longer fulfills the cuts
+ // defined, then we create a hit.
+ if (out) {
+ if (fCurrentDeltaE >= 0) {
+ fCurrentDeltaE += edep;
+ AliDebug(15, Form("Track # %8d exiting active FMD volume %s: Edep=%g, "
+ "Accumulated Edep=%g (%f,%f,%f)", trackno,
+ mc->CurrentVolPath(), edep, fCurrentDeltaE,
+ v.X(), v.Y(), v.Z()));
+ TVector3 cur(v.Vect());
+ cur -= fCurrentV.Vect();
+ Double_t len = cur.Mag();
+ AliFMDHit* h =
+ AddHitByFields(trackno, detector, ring, sector, strip,
+ fCurrentV.X(), fCurrentV.Y(), fCurrentV.Z(),
+ fCurrentP.X(), fCurrentP.Y(), fCurrentP.Z(),
+ fCurrentDeltaE, fCurrentPdg, fCurrentV.T(),
+ len, mc->IsTrackDisappeared()||mc->IsTrackStop());
+ // Add a copy
+ if (isBad && fBad) {
+ new ((*fBad)[fBad->GetEntries()]) AliFMDHit(*h);
+ }
+ // Check the geometry that we can get back the coordinates.
+#ifdef CHECK_TRANS
+ Double_t x, y, z;
+ fmd->Detector2XYZ(detector, ring, sector, strip, x, y ,z);
+ AliDebug(1, Form("Hit at (%f,%f,%f), geometry says (%f,%f,%f)",
+ fCurrentV.X(), fCurrentV.Y(), fCurrentV.Z(), x, y, z));
+#endif
+ }
+ fCurrentDeltaE = -1;
+ }
+}
+//___________________________________________________________________
+//
+// EOF
+//