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a524cc6b 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/*
17$Log$
18Revision 1.21 2002/03/19 09:36:17 morsch
19Unnecessary includes removes, one included. (Jacek M. Holeczek)
20
21Revision 1.20 2001/10/03 10:19:13 morsch
22gudcay(): previous problem fixed by correct checking of indices.
23
24Revision 1.19 2001/10/03 08:39:03 morsch
25Bug in user decay routine leading to segmentation violation corrected.
26
27Revision 1.18 2001/07/19 09:10:23 morsch
28In decays with AliDecayer put long-lived particles undecayed on the stack.
29
30Revision 1.17 2001/06/15 09:31:23 morsch
31In gudcay: write only first generation decay products to stack to respect the possibility of secondary, tertiary, ... vertices during tracking.
32
33Revision 1.16 2001/05/16 14:57:23 alibrary
34New files for folders and Stack
35
36Revision 1.15 2001/03/20 06:28:49 alibrary
37New detector loop split in 2
38
39Revision 1.14 2000/12/20 08:39:39 fca
40Support for Cerenkov and process list in Virtual MC
41
42Revision 1.13 2000/11/30 07:12:54 alibrary
43Introducing new Rndm and QA classes
44
45Revision 1.12 2000/11/06 11:35:46 morsch
46Call BuildGeometry() after Init() to be able to share common detector parameters.
47
48Revision 1.11 2000/10/04 16:30:22 fca
49Add include for exit()
50
51Revision 1.10 2000/10/02 21:28:16 fca
52Removal of useless dependecies via forward declarations
53
54Revision 1.9 2000/09/12 14:36:17 morsch
55In gudcay(): call ForceDecay() before Decay()
56
57Revision 1.8 2000/09/06 14:56:34 morsch
58gudcay() method implemented.
59Decays are performed using the AliDecayer interface. The pointer to the instance of AliDecayer
60is obtained from geant3 (will be gMC once it has been implemented for Geant4).
61
62Revision 1.7 2000/07/13 16:19:10 fca
63Mainly coding conventions + some small bug fixes
64
65Revision 1.6 2000/07/11 18:24:59 fca
66Coding convention corrections + few minor bug fixes
67
68Revision 1.5 2000/05/20 14:49:48 fca
69Call gdebug at the end of gustep
70
71Revision 1.4 2000/04/26 10:17:32 fca
72Changes in Lego for G4 compatibility
73
74Revision 1.3 2000/04/07 11:12:35 fca
75G4 compatibility changes
76
77Revision 1.2 2000/02/29 19:11:17 fca
78Move gucode into AliGeant3.cxx
79
80Revision 1.1 2000/02/23 16:25:25 fca
81AliVMC and AliGeant3 classes introduced
82ReadEuclid moved from AliRun to AliModule
83
84*/
85
86#include <stdlib.h>
87
88#include <TParticle.h>
89#include <TStopwatch.h>
90#include <TClonesArray.h>
91
92#include "AliDecayer.h"
93#include "AliGeant3.h"
94#include "AliRun.h"
95#include "TGeant3.h"
96#include "AliCallf77.h"
97#include "AliModule.h"
98#include "AliMagF.h"
99#include "AliGenerator.h"
100
101#ifndef WIN32
102
103# define rxgtrak rxgtrak_
104# define rxouth rxouth_
105# define rxinh rxinh_
106#else
107
108# define rxgtrak RXGTRAK
109# define rxouth RXOUTH
110# define rxinh RXINH
111#endif
112
113ClassImp(AliGeant3)
114
115AliGeant3::AliGeant3(const char *title) :
116 TGeant3(title) {}
117
118//____________________________________________________________________________
119void AliGeant3::FinishGeometry()
120{
121 //
122 // Finalise geometry construction
123 //
124 TGeant3::FinishGeometry();
125 //Create the color table
126 SetColors();
127}
128
129//____________________________________________________________________________
130void AliGeant3::Init()
131{
132 //
133 //=================Create Materials and geometry
134 //
135 TStopwatch stw;
136 TObjArray *modules = gAlice->Modules();
137 TIter next(modules);
138 AliModule *detector;
139 printf("Geometry creation:\n");
140 while((detector = (AliModule*)next())) {
141 stw.Start();
142 // Initialise detector materials and geometry
143 detector->CreateMaterials();
144 detector->CreateGeometry();
145 printf("%10s R:%.2fs C:%.2fs\n",
146 detector->GetName(),stw.RealTime(),stw.CpuTime());
147 }
148 //Terminate building of geometry
149 FinishGeometry();
150
151 printf("Initialisation:\n");
152 next.Reset();
153 while((detector = (AliModule*)next())) {
154 stw.Start();
155 // Initialise detector and display geometry
156 detector->Init();
157 detector->BuildGeometry();
158 printf("%10s R:%.2fs C:%.2fs\n",
159 detector->GetName(),stw.RealTime(),stw.CpuTime());
160 }
161
162}
163
164//____________________________________________________________________________
165void AliGeant3::ProcessRun(Int_t nevent)
166{
167 //
168 // Process the run
169 //
170 Int_t todo = TMath::Abs(nevent);
171 for (Int_t i=0; i<todo; i++) {
172 // Process one run (one run = one event)
173 gAlice->BeginEvent();
174 ProcessEvent();
175 gAlice->FinishEvent();
176 }
177}
178
179//_____________________________________________________________________________
180void AliGeant3::ProcessEvent()
181{
182 //
183 // Process one event
184 //
185 Gtrigi();
186 Gtrigc();
187 Gtrig();
188}
189
190//_____________________________________________________________________________
191void AliGeant3::SetColors()
192{
193 //
194 // Set the colors for all the volumes
195 // this is done sequentially for all volumes
196 // based on the number of their medium
197 //
198 Int_t kv, icol;
199 Int_t jvolum=fGclink->jvolum;
200 //Int_t jtmed=fGclink->jtmed;
201 //Int_t jmate=fGclink->jmate;
202 Int_t nvolum=fGcnum->nvolum;
203 char name[5];
204 //
205 // Now for all the volumes
206 for(kv=1;kv<=nvolum;kv++) {
207 // Get the tracking medium
208 Int_t itm=Int_t (fZq[fZlq[jvolum-kv]+4]);
209 // Get the material
210 //Int_t ima=Int_t (fZq[fZlq[jtmed-itm]+6]);
211 // Get z
212 //Float_t z=fZq[fZlq[jmate-ima]+7];
213 // Find color number
214 //icol = Int_t(z)%6+2;
215 //icol = 17+Int_t(z*150./92.);
216 //icol = kv%6+2;
217 icol = itm%6+2;
218 strncpy(name,(char*)&fZiq[jvolum+kv],4);
219 name[4]='\0';
220 Gsatt(name,"COLO",icol);
221 }
222}
223
224//_____________________________________________________________________________
225//
226// Interfaces to Fortran
227//
228//_____________________________________________________________________________
229
230extern "C" void type_of_call rxgtrak (Int_t &mtrack, Int_t &ipart, Float_t *pmom,
231 Float_t &e, Float_t *vpos, Float_t *polar,
232 Float_t &tof)
233{
234 //
235 // Fetches next track from the ROOT stack for transport. Called by the
236 // modified version of GTREVE.
237 //
238 // Track number in the ROOT stack. If MTRACK=0 no
239 // mtrack more tracks are left in the stack to be
240 // transported.
241 // ipart Particle code in the GEANT conventions.
242 // pmom[3] Particle momentum in GeV/c
243 // e Particle energy in GeV
244 // vpos[3] Particle position
245 // tof Particle time of flight in seconds
246 //
247 Int_t pdg;
248 gAlice->GetNextTrack(mtrack, pdg, pmom, e, vpos, polar, tof);
249 ipart = gMC->IdFromPDG(pdg);
250 mtrack++;
251}
252
253//_____________________________________________________________________________
254extern "C" void type_of_call rxouth ()
255{
256 //
257 // Called by Gtreve at the end of each primary track
258 //
259 gAlice->FinishPrimary();
260}
261
262//_____________________________________________________________________________
263extern "C" void type_of_call rxinh ()
264{
265 //
266 // Called by Gtreve at the beginning of each primary track
267 //
268 gAlice->BeginPrimary();
269}
270
271#ifndef WIN32
272# define gudigi gudigi_
273# define guhadr guhadr_
274# define guout guout_
275# define guphad guphad_
276# define gudcay gudcay_
277# define guiget guiget_
278# define guinme guinme_
279# define guinti guinti_
280# define gunear gunear_
281# define guskip guskip_
282# define guview guview_
283# define gupara gupara_
284# define gudtim gudtim_
285# define guplsh guplsh_
286# define gutrev gutrev_
287# define gutrak gutrak_
288# define guswim guswim_
289# define gufld gufld_
290# define gustep gustep_
291# define gukine gukine_
292# define uglast uglast_
293
294# define gheish gheish_
295# define flufin flufin_
296# define gfmfin gfmfin_
297# define gpghei gpghei_
298# define fldist fldist_
299# define gfmdis gfmdis_
300# define ghelx3 ghelx3_
301# define ghelix ghelix_
302# define grkuta grkuta_
303# define gtrack gtrack_
304# define gtreveroot gtreveroot_
305# define glast glast_
306
307#else
308# define gudigi GUDIGI
309# define guhadr GUHADR
310# define guout GUOUT
311# define guphad GUPHAD
312# define gudcay GUDCAY
313# define guiget GUIGET
314# define guinme GUINME
315# define guinti GUINTI
316# define gunear GUNEAR
317# define guskip GUSKIP
318# define guview GUVIEW
319# define gupara GUPARA
320# define gudtim GUDTIM
321# define guplsh GUPLSH
322# define gutrev GUTREV
323# define gutrak GUTRAK
324# define guswim GUSWIM
325# define gufld GUFLD
326# define gustep GUSTEP
327# define gukine GUKINE
328# define uglast UGLAST
329
330# define gheish GHEISH
331# define flufin FLUFIN
332# define gfmfin GFMFIN
333# define gpghei GPGHEI
334# define fldist FLDIST
335# define gfmdis GFMDIS
336# define ghelx3 GHELX3
337# define ghelix GHELIX
338# define grkuta GRKUTA
339# define gtrack GTRACK
340# define gtreveroot GTREVEROOT
341# define glast GLAST
342
343#endif
344
345extern "C" type_of_call void gheish();
346extern "C" type_of_call void flufin();
347extern "C" type_of_call void gfmfin();
348extern "C" type_of_call void gpghei();
349extern "C" type_of_call void fldist();
350extern "C" type_of_call void gfmdis();
351extern "C" type_of_call void ghelx3(Float_t&, Float_t&, Float_t*, Float_t*);
352extern "C" type_of_call void ghelix(Float_t&, Float_t&, Float_t*, Float_t*);
353extern "C" type_of_call void grkuta(Float_t&, Float_t&, Float_t*, Float_t*);
354extern "C" type_of_call void gtrack();
355extern "C" type_of_call void gtreveroot();
356extern "C" type_of_call void glast();
357
358extern "C" type_of_call {
359
360//______________________________________________________________________
361void gudigi()
362{
363//
364// ******************************************************************
365// * *
366// * User routine to digitize one event *
367// * *
368// * ==>Called by : GTRIG *
369// * *
370// ******************************************************************
371
372}
373
374
375//______________________________________________________________________
376void guhadr()
377{
378//
379// ******************************************************************
380// * *
381// * User routine to generate one hadronic interaction *
382// * *
383// * ==>Called by : GTHADR,GTNEUT *
384// * *
385// ******************************************************************
386//
387//
388// ------------------------------------------------------------------
389//
390 TGeant3* geant3 = (TGeant3*) gMC;
391 Int_t ihadr=geant3->Gcphys()->ihadr;
392 if (ihadr<4) gheish();
393 else if (ihadr==4) flufin();
394 else gfmfin();
395}
396
397//______________________________________________________________________
398void guout()
399{
400//
401// ******************************************************************
402// * *
403// * User routine called at the end of each event *
404// * *
405// * ==>Called by : GTRIG *
406// * *
407// ******************************************************************
408//
409//
410// ------------------------------------------------------------------
411//
412}
413
414//______________________________________________________________________
415void guphad()
416{
417//
418// ******************************************************************
419// * *
420// * User routine to compute Hadron. inter. probabilities *
421// * *
422// * ==>Called by : GTHADR,GTNEUT *
423// * *
424// ******************************************************************
425//
426//
427// ------------------------------------------------------------------
428//
429 TGeant3* geant3 = (TGeant3*) gMC;
430 Int_t ihadr=geant3->Gcphys()->ihadr;
431 if (ihadr<4) gpghei();
432 else if (ihadr==4) fldist();
433 else gfmdis();
434}
435
436//______________________________________________________________________
437void gudcay()
438{
439//
440// ******************************************************************
441// * *
442// * User routine to decay particles *
443// * *
444// * ==>Called by : GDECAY *
445// * *
446// ******************************************************************
447//
448//
449// ------------------------------------------------------------------
450//
451
452 TGeant3* geant3=(TGeant3*) gMC;
453 // set decay table
454 gMC->Decayer()->ForceDecay();
455
456// Initialize 4-momentum vector
457 Int_t ipart = geant3->Gckine()->ipart;
458 TLorentzVector p;
459
460 p[0]=geant3->Gctrak()->vect[3];
461 p[1]=geant3->Gctrak()->vect[4];
462 p[2]=geant3->Gctrak()->vect[5];
463 p[3]=geant3->Gctrak()->vect[6];
464
465// Convert from geant to lund particle code
466 Int_t iplund=gMC->PDGFromId(ipart);
467// Particle list
468 static TClonesArray *particles;
469 if(!particles) particles=new TClonesArray("TParticle",1000);
470// Decay
471 gMC->Decayer()->Decay(iplund, &p);
472
473// Fetch Particles
474 Int_t np = geant3->Decayer()->ImportParticles(particles);
475 if (np <=1) return;
476
477 TParticle * iparticle = (TParticle *) particles->At(0);
478 Int_t ipF = 0, ipL = 0 ;
479 Int_t i,j;
480
481// Array to flag deselected particles
482 Int_t* pFlag = new Int_t[np];
483 for (i=0; i<np; i++) pFlag[i]=0;
484// Particle loop
485 for (i=1; i < np; i++)
486 {
487 iparticle = (TParticle *) particles->At(i);
488 ipF = iparticle->GetFirstDaughter();
489 ipL = iparticle->GetLastDaughter();
490 Int_t kf = iparticle->GetPdgCode();
491 Int_t ks = iparticle->GetStatusCode();
492//
493// Deselect daughters of deselected particles
494// and jump skip the current particle
495 if (pFlag[i] == 1) {
496 if (ipF > 0) for (j=ipF-1; j<ipL; j++) pFlag[j]=1;
497 continue;
498 } // deselected ??
499// Particles with long life-time are put on the stack for further tracking
500// Decay products are deselected
501//
502 if (ks != 1) {
503 Double_t lifeTime = gMC->Decayer()->GetLifetime(kf);
504 if (lifeTime > (Double_t) 1.e-15) {
505 if (ipF > 0) for (j=ipF-1; j<ipL; j++) pFlag[j]=1;
506 } else{
507 continue;
508 }
509 } // ks==1 ?
510// Skip neutrinos
511 if (kf==12 || kf ==-12) continue;
512 if (kf==14 || kf ==-14) continue;
513 if (kf==16 || kf ==-16) continue;
514
515 Int_t index=geant3->Gcking()->ngkine;
516// Put particle on geant stack
517// momentum vector
518
519 (geant3->Gcking()->gkin[index][0]) = iparticle->Px();
520 (geant3->Gcking()->gkin[index][1]) = iparticle->Py();
521 (geant3->Gcking()->gkin[index][2]) = iparticle->Pz();
522 (geant3->Gcking()->gkin[index][3]) = iparticle->Energy();
523 Int_t ilu = gMC->IdFromPDG(kf);
524
525// particle type
526 (geant3->Gcking()->gkin[index][4]) = Float_t(ilu);
527// position
528 (geant3->Gckin3()->gpos[index][0]) = geant3->Gctrak()->vect[0];
529 (geant3->Gckin3()->gpos[index][1]) = geant3->Gctrak()->vect[1];
530 (geant3->Gckin3()->gpos[index][2]) = geant3->Gctrak()->vect[2];
531// time of flight offset (mm)
532 (geant3->Gcking()->tofd[index]) = 0.;
533// increase stack counter
534 (geant3->Gcking()->ngkine)=index+1;
535 }
536 delete[] pFlag;
537}
538
539//______________________________________________________________________
540void guiget(Int_t&, Int_t&, Int_t&)
541{
542//
543// ******************************************************************
544// * *
545// * User routine for interactive control of GEANT *
546// * *
547// * ==>Called by : <GXINT>, GINCOM *
548// * *
549// ******************************************************************
550//
551//
552// ------------------------------------------------------------------
553//
554}
555
556//______________________________________________________________________
557void guinme(Float_t*, Int_t&, Float_t*, Int_t& IYES)
558{
559//
560// **********************************************
561// * *
562// * USER ROUTINE TO PROVIDE GINME FUNCTION *
563// * FOR ALL USER SHAPES IDENTIFIED BY THE *
564// * SHAPE NUMBER SH. POINT IS GIVEN IN X *
565// * THE PARAMETERS ARE GIVEN IN P. IYES IS *
566// * RETURNED 1 IF POINT IS IN, 0 IF POINT *
567// * IS OUT AND LESS THAN ZERO IF SHAPE *
568// * NUMBER IS NOT SUPPORTED. *
569// * *
570// * ==>Called by : GINME *
571// * *
572// **********************************************
573//
574 IYES=-1;
575}
576
577//______________________________________________________________________
578void guinti()
579{
580//
581// ******************************************************************
582// * *
583// * User routine for interactive version *
584// * *
585// * ==>Called by : <GXINT>, GINTRI *
586// * *
587// ******************************************************************
588//
589//
590// ------------------------------------------------------------------
591//
592}
593
594//______________________________________________________________________
595void gunear(Int_t&, Int_t&, Float_t*, Int_t&)
596{
597//
598// ******************************************************************
599// * *
600// * User search *
601// * ISEARC to identify the given volume *
602// * ICALL to identify the calling routine *
603// * 1 GMEDIA like *
604// * 2 GNEXT like *
605// * X coordinates (+direction for ICALL=2) *
606// * JNEAR address of default list of neighbours *
607// * (list to be overwriten by user) *
608// * *
609// * Called by : GFTRAC, GINVOL, GTMEDI, GTNEXT, GNEXT, GMEDIA *
610// * *
611// ******************************************************************
612//
613//
614// ------------------------------------------------------------------
615//
616}
617
618//______________________________________________________________________
619void guskip(Int_t& ISKIP)
620{
621//
622// ******************************************************************
623// * *
624// * User routine to skip unwanted tracks *
625// * *
626// * Called by : GSSTAK *
627// * Author : F.Bruyant *
628// * *
629// ******************************************************************
630//
631//
632// ------------------------------------------------------------------
633//
634 ISKIP = 0;
635}
636
637//______________________________________________________________________
638void guswim(Float_t& CHARGE, Float_t& STEP, Float_t* VECT, Float_t* VOUT)
639{
640//
641// ******************************************************************
642// * *
643// * User routine to control tracking of one track *
644// * in a magnetic field *
645// * *
646// * ==>Called by : GTELEC,GTHADR,GTMUON *
647// * *
648// ******************************************************************
649//
650//
651// ------------------------------------------------------------------
652//
653 TGeant3* geant3 = (TGeant3*) gMC;
654 Int_t ifield=geant3->Gctmed()->ifield;
655 Float_t fieldm=geant3->Gctmed()->fieldm;
656
657 if (ifield==3) {
658 Float_t fldcharge = fieldm*CHARGE;
659 ghelx3(fldcharge,STEP,VECT,VOUT);
660 }
661 else if (ifield==2) ghelix(CHARGE,STEP,VECT,VOUT);
662 else grkuta(CHARGE,STEP,VECT,VOUT);
663}
664
665//______________________________________________________________________
666void guview(Int_t&, Int_t&, DEFCHARD, Int_t& DEFCHARL)
667{
668//
669// ******************************************************************
670// * *
671// * User routine for interactive version *
672// * *
673// * ==>Called by : <GXINT>, GINC1 *
674// * *
675// ******************************************************************
676//
677//
678// ------------------------------------------------------------------
679//
680}
681
682//______________________________________________________________________
683void gupara()
684{
685//
686// ******************************************************************
687// * *
688// * User routine called every time a particle falls below *
689// * parametrization threshold. This routine should create *
690// * the parametrization stack, and, when this is full, *
691// * parametrize the shower and track the geantinos. *
692// * *
693// * ==>Called by : GTRACK *
694// * *
695// ******************************************************************
696//
697//
698// ------------------------------------------------------------------
699//
700}
701
702//______________________________________________________________________
703Float_t gudtim(Float_t&, Float_t&, Int_t&, Int_t&)
704{
705//
706// ******************************************************************
707// * *
708// * User function called by GCDRIF to return drift time *
709// * *
710// * ==>Called by : GCDRIF *
711// * *
712// ******************************************************************
713//
714//
715// ------------------------------------------------------------------
716//
717 return 0;
718}
719
720
721//______________________________________________________________________
722Float_t guplsh(Int_t&, Int_t&)
723{
724//
725// ******************************************************************
726// * *
727// * *
728// * ==>Called by : GLISUR *
729// * *
730// ******************************************************************
731//
732//
733// ------------------------------------------------------------------
734//
735//
736//*** By default this defines perfect smoothness
737 return 1;
738}
739
740//______________________________________________________________________
741void gutrak()
742{
743//
744// ******************************************************************
745// * *
746// * User routine to control tracking of one track *
747// * *
748// * ==>Called by : GTREVE *
749// * *
750// ******************************************************************
751//
752//
753// ------------------------------------------------------------------
754//
755 gAlice->PreTrack();
756
757 gtrack();
758
759 gAlice->PostTrack();
760}
761
762//______________________________________________________________________
763void gutrev()
764{
765//
766// ******************************************************************
767// * *
768// * User routine to control tracking of one event *
769// * *
770// * ==>Called by : GTRIG *
771// * *
772// ******************************************************************
773//
774//
775// ------------------------------------------------------------------
776//
777 gtreveroot();
778}
779
780
781//______________________________________________________________________
782void gufld(Float_t *x, Float_t *b)
783{
784 if(gAlice->Field()) {
785 gAlice->Field()->Field(x,b);
786 } else {
787 printf("No mag field defined!\n");
788 b[0]=b[1]=b[2]=0;
789 }
790}
791
792//______________________________________________________________________
793void gustep()
794{
795//
796// ******************************************************************
797// * *
798// * User routine called at the end of each tracking step *
799// * INWVOL is different from 0 when the track has reached *
800// * a volume boundary *
801// * ISTOP is different from 0 if the track has stopped *
802// * *
803// * ==>Called by : GTRACK *
804// * *
805// ******************************************************************
806//
807
808
809 TLorentzVector x;
810 Float_t r;
811 Int_t ipp, jk, id, nt;
812 Float_t polar[3]={0,0,0};
813 Float_t mom[3];
814 AliMCProcess pProc;
815
816
817 TGeant3* geant3 = (TGeant3*) gMC;
818 // Stop particle if outside user defined tracking region
819 gMC->TrackPosition(x);
820 r=TMath::Sqrt(x[0]*x[0]+x[1]*x[1]);
821 if (r > gAlice->TrackingRmax() || TMath::Abs(x[2]) > gAlice->TrackingZmax()) {
822 gMC->StopTrack();
823 }
824
825 // --- Add new created particles
826 if (gMC->NSecondaries() > 0) {
827 pProc=gMC->ProdProcess(0);
828 for (jk = 0; jk < geant3->Gcking()->ngkine; ++jk) {
829 ipp = Int_t (geant3->Gcking()->gkin[jk][4]+0.5);
830 // --- Skip neutrinos!
831 if (ipp != 4) {
832 gAlice->SetTrack(1,gAlice->CurrentTrack(),gMC->PDGFromId(ipp), geant3->Gcking()->gkin[jk],
833 geant3->Gckin3()->gpos[jk], polar,geant3->Gctrak()->tofg, pProc, nt);
834 }
835 }
836 }
837 // Cherenkov photons here
838 if ( geant3->Gckin2()->ngphot ) {
839 for (jk = 0; jk < geant3->Gckin2()->ngphot; ++jk) {
840 mom[0]=geant3->Gckin2()->xphot[jk][3]*geant3->Gckin2()->xphot[jk][6];
841 mom[1]=geant3->Gckin2()->xphot[jk][4]*geant3->Gckin2()->xphot[jk][6];
842 mom[2]=geant3->Gckin2()->xphot[jk][5]*geant3->Gckin2()->xphot[jk][6];
843 gAlice->SetTrack(1, gAlice->CurrentTrack(), gMC->PDGFromId(50),
844 mom, //momentum
845 geant3->Gckin2()->xphot[jk], //position
846 &geant3->Gckin2()->xphot[jk][7], //polarisation
847 geant3->Gckin2()->xphot[jk][10], //time of flight
848 kPCerenkov, nt);
849 }
850 }
851 // --- Particle leaving the setup ?
852 if (!gMC->IsTrackOut())
853 if ((id=gAlice->DetFromMate(geant3->Gctmed()->numed)) >= 0) gAlice->StepManager(id);
854
855 // --- Standard GEANT debug routine
856 if(geant3->Gcflag()->idebug) geant3->Gdebug();
857}
858
859//______________________________________________________________________
860void gukine ()
861{
862//
863// ******************************************************************
864// * *
865// * Read or Generates Kinematics for primary tracks *
866// * *
867// * ==>Called by : GTRIG *
868// * *
869// ******************************************************************
870//
871//
872// ------------------------------------------------------------------
873//
874 gAlice->Generator()->Generate();
875}
876
877
878//______________________________________________________________________
879void uglast()
880{
881//
882// ******************************************************************
883// * *
884// * User routine called at the end of the run *
885// * *
886// * ==>Called by : GRUN *
887// * *
888// ******************************************************************
889//
890//
891}
892}
893