/*
$Log$
+Revision 1.13 2000/11/30 07:12:54 alibrary
+Introducing new Rndm and QA classes
+
+Revision 1.12 2000/11/06 11:35:46 morsch
+Call BuildGeometry() after Init() to be able to share common detector parameters.
+
+Revision 1.11 2000/10/04 16:30:22 fca
+Add include for exit()
+
+Revision 1.10 2000/10/02 21:28:16 fca
+Removal of useless dependecies via forward declarations
+
+Revision 1.9 2000/09/12 14:36:17 morsch
+In gudcay(): call ForceDecay() before Decay()
+
+Revision 1.8 2000/09/06 14:56:34 morsch
+gudcay() method implemented.
+Decays are performed using the AliDecayer interface. The pointer to the instance of AliDecayer
+is obtained from geant3 (will be gMC once it has been implemented for Geant4).
+
+Revision 1.7 2000/07/13 16:19:10 fca
+Mainly coding conventions + some small bug fixes
+
+Revision 1.6 2000/07/11 18:24:59 fca
+Coding convention corrections + few minor bug fixes
+
+Revision 1.5 2000/05/20 14:49:48 fca
+Call gdebug at the end of gustep
+
+Revision 1.4 2000/04/26 10:17:32 fca
+Changes in Lego for G4 compatibility
+
+Revision 1.3 2000/04/07 11:12:35 fca
+G4 compatibility changes
+
+Revision 1.2 2000/02/29 19:11:17 fca
+Move gucode into AliGeant3.cxx
+
Revision 1.1 2000/02/23 16:25:25 fca
AliVMC and AliGeant3 classes introduced
ReadEuclid moved from AliRun to AliModule
*/
+#include <stdlib.h>
+
#include <TParticle.h>
+#include "AliDecayer.h"
#include "AliGeant3.h"
#include "AliRun.h"
#include "TGeant3.h"
#include "AliCallf77.h"
+#include "AliModule.h"
+#include "AliMagF.h"
+#include "AliGenerator.h"
#ifndef WIN32
# define rxgtrak rxgtrak_
-# define rxstrak rxstrak_
-# define rxkeep rxkeep_
# define rxouth rxouth_
#else
# define rxgtrak RXGTRAK
-# define rxstrak RXSTRAK
-# define rxkeep RXKEEP
# define rxouth RXOUTH
#endif
ClassImp(AliGeant3)
-AliGeant3::AliGeant3()
+AliGeant3::AliGeant3(const char *title) :
+ TGeant3(title) {}
+
+//____________________________________________________________________________
+void AliGeant3::FinishGeometry()
{
- new TGeant3();
+ //
+ // Finalise geometry construction
+ //
+ TGeant3::FinishGeometry();
+ //Create the color table
+ SetColors();
}
-AliGeant3::AliGeant3(const char *title) :
- AliVMC("ALICE Virtual MC for Geant3",title)
+//____________________________________________________________________________
+void AliGeant3::Init()
{
- new TGeant3(title);
+ //
+ //=================Create Materials and geometry
+ //
+ TObjArray *modules = gAlice->Modules();
+ TIter next(modules);
+ AliModule *detector;
+ while((detector = (AliModule*)next())) {
+ // Initialise detector materials and geometry
+ detector->CreateMaterials();
+ detector->CreateGeometry();
+ detector->Init();
+ detector->BuildGeometry();
+ }
+
+ //Terminate building of geometry
+ FinishGeometry();
}
-void AliGeant3::FinishGeometry()
+//____________________________________________________________________________
+void AliGeant3::ProcessRun(Int_t nevent)
{
- gMC->FinishGeometry();
- //Create the color table
- gMC->SetColors();
+ //
+ // Process the run
+ //
+ Int_t todo = TMath::Abs(nevent);
+ for (Int_t i=0; i<todo; i++) {
+ // Process one run (one run = one event)
+ gAlice->BeginEvent();
+ ProcessEvent();
+ gAlice->FinishEvent();
+ }
}
-void AliGeant3::BuildPhysics()
+//_____________________________________________________________________________
+void AliGeant3::ProcessEvent()
{
- ((TGeant3*)gMC)->Gphysi();
+ //
+ // Process one event
+ //
+ Gtrigi();
+ Gtrigc();
+ Gtrig();
}
-void AliGeant3::ProcessEvent()
+//_____________________________________________________________________________
+void AliGeant3::SetColors()
{
- ((TGeant3*)gMC)->Gtrigi();
- ((TGeant3*)gMC)->Gtrigc();
- ((TGeant3*)gMC)->Gtrig();
+ //
+ // Set the colors for all the volumes
+ // this is done sequentially for all volumes
+ // based on the number of their medium
+ //
+ Int_t kv, icol;
+ Int_t jvolum=fGclink->jvolum;
+ //Int_t jtmed=fGclink->jtmed;
+ //Int_t jmate=fGclink->jmate;
+ Int_t nvolum=fGcnum->nvolum;
+ char name[5];
+ //
+ // Now for all the volumes
+ for(kv=1;kv<=nvolum;kv++) {
+ // Get the tracking medium
+ Int_t itm=Int_t (fZq[fZlq[jvolum-kv]+4]);
+ // Get the material
+ //Int_t ima=Int_t (fZq[fZlq[jtmed-itm]+6]);
+ // Get z
+ //Float_t z=fZq[fZlq[jmate-ima]+7];
+ // Find color number
+ //icol = Int_t(z)%6+2;
+ //icol = 17+Int_t(z*150./92.);
+ //icol = kv%6+2;
+ icol = itm%6+2;
+ strncpy(name,(char*)&fZiq[jvolum+kv],4);
+ name[4]='\0';
+ Gsatt(name,"COLO",icol);
+ }
}
//_____________________________________________________________________________
mtrack++;
}
-//_____________________________________________________________________________
-extern "C" void type_of_call
-#ifndef WIN32
-rxstrak (Int_t &keep, Int_t &parent, Int_t &ipart, Float_t *pmom,
- Float_t *vpos, Float_t &tof, const char* cmech, Int_t &ntr, const int cmlen)
-#else
-rxstrak (Int_t &keep, Int_t &parent, Int_t &ipart, Float_t *pmom,
- Float_t *vpos, Float_t &tof, const char* cmech, const int cmlen,
- Int_t &ntr)
-#endif
-{
- //
- // Fetches next track from the ROOT stack for transport. Called by GUKINE
- // and GUSTEP.
- //
- // Status of the track. If keep=0 the track is put
- // keep on the ROOT stack but it is not fetched for
- // transport.
- // parent Parent track. If parent=0 the track is a primary.
- // In GUSTEP the routine is normally called to store
- // secondaries generated by the current track whose
- // ROOT stack number is MTRACK (common SCKINE.
- // ipart Particle code in the GEANT conventions.
- // pmom[3] Particle momentum in GeV/c
- // vpos[3] Particle position
- // tof Particle time of flight in seconds
- //
- // cmech (CHARACTER*10) Particle origin. This field is user
- // defined and it is not used inside the GALICE code.
- // ntr Number assigned to the particle in the ROOT stack.
- //
- char mecha[11];
- Float_t polar[3]={0.,0.,0.};
- for(int i=0; i<10 && i<cmlen; i++) mecha[i]=cmech[i];
- mecha[10]=0;
- Int_t pdg=gMC->PDGFromId(ipart);
- gAlice->SetTrack(keep, parent-1, pdg, pmom, vpos, polar, tof, mecha, ntr);
- ntr++;
-}
-
-//_____________________________________________________________________________
-extern "C" void type_of_call rxkeep(const Int_t &n)
-{
- if( NULL==gAlice ) exit(1);
-
- if( n<=0 || n>gAlice->Particles()->GetEntries() )
- {
- printf(" Bad index n=%d must be 0<n<=%d\n",
- n,gAlice->Particles()->GetEntries());
- exit(1);
- }
-
- ((TParticle*)(gAlice->Particles()->UncheckedAt(n-1)))->SetBit(Keep_Bit);
-}
-
//_____________________________________________________________________________
extern "C" void type_of_call rxouth ()
{
gAlice->FinishPrimary();
}
-
#ifndef WIN32
# define gudigi gudigi_
# define guhadr guhadr_
# define ghelix ghelix_
# define grkuta grkuta_
# define gtrack gtrack_
-# define gtreve_root gtreve_root_
+# define gtreveroot gtreveroot_
# define glast glast_
#else
# define ghelix GHELIX
# define grkuta GRKUTA
# define gtrack GTRACK
-# define gtreve_root GTREVE_ROOT
+# define gtreveroot GTREVEROOT
# define glast GLAST
#endif
extern "C" type_of_call void ghelix(Float_t&, Float_t&, Float_t*, Float_t*);
extern "C" type_of_call void grkuta(Float_t&, Float_t&, Float_t*, Float_t*);
extern "C" type_of_call void gtrack();
-extern "C" type_of_call void gtreve_root();
+extern "C" type_of_call void gtreveroot();
extern "C" type_of_call void glast();
extern "C" type_of_call {
//
// ------------------------------------------------------------------
//
+
+ TGeant3* geant3=(TGeant3*) gMC;
+ // set decay table
+ gMC->Decayer()->ForceDecay();
+
+// Initialize 4-momentum vector
+ Int_t ipart = geant3->Gckine()->ipart;
+ TLorentzVector p;
+
+ p[0]=geant3->Gctrak()->vect[3];
+ p[1]=geant3->Gctrak()->vect[4];
+ p[2]=geant3->Gctrak()->vect[5];
+ p[3]=geant3->Gctrak()->vect[6];
+
+// Convert from geant to lund particle code
+ Int_t iplund=gMC->PDGFromId(ipart);
+// Particle list
+ static TClonesArray *particles;
+ if(!particles) particles=new TClonesArray("TParticle",1000);
+// Decay
+ gMC->Decayer()->Decay(iplund, &p);
+
+// Fetch Particles
+ Int_t np = geant3->Decayer()->ImportParticles(particles);
+ if (np <=1) return;
+
+ for (Int_t i=0; i< np; i++)
+ {
+ TParticle * iparticle = (TParticle *) particles->At(i);
+ Int_t ks = iparticle->GetStatusCode();
+// Final state particles only
+ if (ks < 1 || ks > 10) continue;
+// Skip neutrinos
+ Int_t kf=iparticle->GetPdgCode();
+ if (kf==12 || kf ==-12) continue;
+ if (kf==14 || kf ==-14) continue;
+ if (kf==16 || kf ==-16) continue;
+
+ Int_t index=geant3->Gcking()->ngkine;
+// Put particle on geant stack
+// momentum vector
+
+ (geant3->Gcking()->gkin[index][0]) = iparticle->Px();
+ (geant3->Gcking()->gkin[index][1]) = iparticle->Py();
+ (geant3->Gcking()->gkin[index][2]) = iparticle->Pz();
+ (geant3->Gcking()->gkin[index][3]) = iparticle->Energy();
+ Int_t ilu = gMC->IdFromPDG(kf);
+
+// particle type
+ (geant3->Gcking()->gkin[index][4]) = Float_t(ilu);
+// position
+ (geant3->Gckin3()->gpos[index][0]) = geant3->Gctrak()->vect[0];
+ (geant3->Gckin3()->gpos[index][1]) = geant3->Gctrak()->vect[1];
+ (geant3->Gckin3()->gpos[index][2]) = geant3->Gctrak()->vect[2];
+// time of flight offset (mm)
+ (geant3->Gcking()->tofd[index]) = 0.;
+// (geant3->Gcking()->tofd[index]) = iparticle->T()/(10*kSpeedOfLight);
+// increase stack counter
+ (geant3->Gcking()->ngkine)=index+1;
+ }
}
//______________________________________________________________________
//
// ------------------------------------------------------------------
//
- Int_t ndet = gAlice->Modules()->GetLast();
- TObjArray &dets = *gAlice->Modules();
- AliModule *module;
- Int_t i;
-
- for(i=0; i<=ndet; i++)
- if((module = (AliModule*)dets[i]))
- module->PreTrack();
+ gAlice->PreTrack();
gtrack();
- for(i=0; i<=ndet; i++)
- if((module = (AliModule*)dets[i]))
- module->PostTrack();
+ gAlice->PostTrack();
}
//______________________________________________________________________
//
// ------------------------------------------------------------------
//
- gtreve_root();
+ gtreveroot();
}
Int_t ipp, jk, id, nt;
Float_t polar[3]={0,0,0};
Float_t mom[3];
- const char *chproc;
+ AliMCProcess pProc;
+
- // --- Standard GEANT debug routine
TGeant3* geant3 = (TGeant3*) gMC;
- if(geant3->Gcflag()->idebug) geant3->Gdebug();
-
// Stop particle if outside user defined tracking region
gMC->TrackPosition(x);
r=TMath::Sqrt(x[0]*x[0]+x[1]*x[1]);
if (r > gAlice->TrackingRmax() || TMath::Abs(x[2]) > gAlice->TrackingZmax()) {
gMC->StopTrack();
}
+
// --- Add new created particles
if (gMC->NSecondaries() > 0) {
- chproc=gMC->ProdProcess();
+ pProc=gMC->ProdProcess(0);
for (jk = 0; jk < geant3->Gcking()->ngkine; ++jk) {
ipp = Int_t (geant3->Gcking()->gkin[jk][4]+0.5);
// --- Skip neutrinos!
if (ipp != 4) {
gAlice->SetTrack(1,gAlice->CurrentTrack(),gMC->PDGFromId(ipp), geant3->Gcking()->gkin[jk],
- geant3->Gckin3()->gpos[jk], polar,geant3->Gctrak()->tofg, chproc, nt);
+ geant3->Gckin3()->gpos[jk], polar,geant3->Gctrak()->tofg, pProc, nt);
}
}
}
geant3->Gckin2()->xphot[jk], //position
&geant3->Gckin2()->xphot[jk][7], //polarisation
geant3->Gckin2()->xphot[jk][10], //time of flight
- "Cherenkov", nt);
+ kPCerenkov, nt);
}
}
// --- Particle leaving the setup ?
if (!gMC->IsTrackOut())
if ((id=gAlice->DetFromMate(geant3->Gctmed()->numed)) >= 0) gAlice->StepManager(id);
+
+ // --- Standard GEANT debug routine
+ if(geant3->Gcflag()->idebug) geant3->Gdebug();
}
//______________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff