[u/mrichter/AliRoot.git] / TFluka / source.cxx

// Fortran 
#include "TCallf77.h"

// Fluka commons
#include "Fdblprc.h"  //(DBLPRC) fluka common
#include "Fdimpar.h"  //(DIMPAR) fluka parameters
#include "Fepisor.h"  //(EPISOR) fluka common
#include "Fstack.h"   //(STACK)  fluka common
#include "Fstars.h"   //(STARS)  fluka common
#include "Fbeam.h"    //(BEAM)   fluka common
#include "Fpaprop.h"  //(PAPROP) fluka common
#include "Fltclcm.h"  //(LTCLCM) fluka common
#include "Fopphst.h"  //(OPPHST) fluka common
//#include "Fcaslim.h"  //(CASLIM) fluka common

//Virutal MC
#include "TFluka.h"

#include "TVirtualMCStack.h"
//#include "TVirtualMCApplication.h"

#include "TParticle.h"
#include "TVector3.h"

//Other
#include <Riostream.h>

#ifndef WIN32
# define source source_
# define geocrs geocrs_
# define georeg georeg_
# define geohsm geohsm_
# define soevsv soevsv_
#else
# define source SOURCE
# define geocrs GEOCRS
# define georeg GEOREG
# define geohsm GEOHSM
# define soevsv SOEVSV
#endif

extern "C" {
  //
  // Prototypes for FLUKA functions
  //
  void type_of_call geocrs(Double_t &, Double_t &, Double_t &);
  void type_of_call georeg(Double_t &, Double_t &, Double_t &, 
			   Int_t &, Int_t &);
  void type_of_call geohsm(Int_t &, Int_t &, Int_t &, Int_t &);
  void type_of_call soevsv();
 /*
   *----------------------------------------------------------------------*
   *                                                                      *
   *     Created on 07 january 1990   by    Alfredo Ferrari & Paola Sala  *
   *                                                   Infn - Milan       *
   *                                                                      *
   *     Last change on 21-jun-98     by    Alfredo Ferrari               *
   *                                                                      *
   *     C++ version on 27-sep-02     by    Isidro Gonzalez               *
   *                                                                      *
   *  This is just an example of a possible user written source routine.  *
   *  note that the beam card still has some meaning - in the scoring the *
   *  maximum momentum used in deciding the binning is taken from the     *
   *  beam momentum.  Other beam card parameters are obsolete.            *
   *                                                                      *
   *----------------------------------------------------------------------*/

  void source(Int_t& nomore) {
// Get the pointer to TFluka
    TFluka* fluka = (TFluka*)gMC;

    Int_t verbosityLevel = fluka->GetVerbosityLevel();
    Bool_t debug = (verbosityLevel>=3)?kTRUE:kFALSE;
    if (debug) {
      cout << "==> source(" << nomore << ")" << endl;
      cout << "\t* EPISOR.lsouit = " << (EPISOR.lsouit?'T':'F') << endl;
    }  

    static Bool_t lfirst = true;
    static Bool_t particleIsPrimary = true;
    static Bool_t lastParticleWasPrimary = true;

    nomore = 0;
    
//  Get the stack 
    TVirtualMCStack* cppstack = fluka->GetStack();

    TParticle* particle;
    Int_t itrack = -1;
    Int_t  nprim  = cppstack->GetNprimary();
//  Get the next particle from the stack
    particle  = cppstack->PopNextTrack(itrack);
    fluka->SetTrackIsNew(kTRUE);

//  Is this a secondary not handled by Fluka, i.e. a particle added by user action ?
    lastParticleWasPrimary = particleIsPrimary;
    
    if (itrack >= nprim) {
	particleIsPrimary = kFALSE;
    } else {
	particleIsPrimary = kTRUE;
    }

    if (lfirst) {
	EPISOR.tkesum = zerzer;
	lfirst = false;
	EPISOR.lussrc = true;
    } else {
//
// Post-track actions for primary track
//
	if (particleIsPrimary) {
	    TVirtualMCApplication::Instance()->PostTrack();
	    TVirtualMCApplication::Instance()->FinishPrimary();
	    if ((itrack%10)==0) printf("=== TRACKING PRIMARY %d ===\n", itrack);
	}
    }

    // Exit if itrack is negative (-1). Set lsouit to false to mark last track for this event

    if (itrack<0) {
      nomore = 1;
      EPISOR.lsouit = false;
      if (debug) {
         cout << "\t* EPISOR.lsouit = " << (EPISOR.lsouit?'T':'F') << endl;
         cout << "\t* No more particles. Exiting..." << endl;
         cout << "<== source(" << nomore << ")" << endl;
      }   
      return;
    }
    
    //
    // Handle user event abortion
    if (fluka->EventIsStopped()) {
	printf("Event has been stopped by user !");
	fluka->SetStopEvent(kFALSE);
	nomore = 1;
	EPISOR.lsouit = false;
	return;
    }

    //Get some info about the particle and print it
    //
    //pdg code
    Int_t pdg = particle->GetPdgCode();
    TVector3 polarisation;
    particle->GetPolarisation(polarisation);
    if (debug) {
       cout << "\t* Particle " << itrack << " retrieved..." << endl;
       cout << "\t\t+ Name = " << particle->GetName() << endl;
       cout << "\t\t+ PDG/Fluka code = " << pdg 
	    << " / " << fluka->IdFromPDG(pdg) << endl;
       cout << "\t\t+ P = (" 
	    << particle->Px() << " , "
	    << particle->Py() << " , "
	    << particle->Pz() << " ) --> "
	    << particle->P() << " GeV " 
	    << particle->Energy() << " GeV "  
	    << particle->GetMass() << " GeV " << endl;
    }   
    /* Lstack is the stack counter: of course any time source is called it
     * must be =0
     */
    /* Cosines (tx,ty,tz)*/
    Double_t cosx = particle->Px()/particle->P();
    Double_t cosy = particle->Py()/particle->P();
    Double_t cosz = TMath::Sqrt(oneone - cosx*cosx - cosy*cosy);
    if (particle->Pz() < 0.) cosz = -cosz;    

    //STACK.ilo[STACK.lstack] = BEAM.ijbeam;
    if (pdg != 50000050 &&  pdg !=  50000051) {
	STACK.lstack++;
	Int_t ifl =  fluka-> IdFromPDG(pdg);
	STACK.ilo[STACK.lstack] = ifl;
	/* Wt is the weight of the particle*/
	STACK.wt[STACK.lstack] = oneone;
	STARS.weipri += STACK.wt[STACK.lstack];
	
	STACK.lo[STACK.lstack] = 1;
	
	/* User dependent flag:*/
	STACK.louse[STACK.lstack] = 0;

	/* User dependent spare variables:*/
	Int_t ispr = 0;
	for (ispr = 0; ispr < mkbmx1; ispr++)
	    STACK.sparek[STACK.lstack][ispr] = zerzer;

	/* User dependent spare flags:*/
	for (ispr = 0; ispr < mkbmx2; ispr++)
	    STACK.ispark[STACK.lstack][ispr] = 0;

	/* Save the track number of the stack particle:*/
	STACK.ispark[STACK.lstack][mkbmx2-1] = itrack;
	STACK.nparma++;
	STACK.numpar[STACK.lstack] = STACK.nparma;
	STACK.nevent[STACK.lstack] = 0;
	STACK.dfnear[STACK.lstack] = +zerzer;
	
	/* Particle age (s)*/
	STACK.agestk[STACK.lstack] = +zerzer;
	STACK.cmpath[STACK.lstack] = +zerzer;
	STACK.aknshr[STACK.lstack] = -twotwo;

	/* Group number for "low" energy neutrons, set to 0 anyway*/
	STACK.igroup[STACK.lstack] = 0;
	
	/* Kinetic energy */
	Double_t p    = particle->P();
	Double_t mass = PAPROP.am[ifl + 6];
	STACK.tke[STACK.lstack] =  TMath::Sqrt( p * p + mass * mass) - mass;
	/* Particle momentum*/
	STACK.pmom [STACK.lstack] = p;

	STACK.tx [STACK.lstack] = cosx;
	STACK.ty [STACK.lstack] = cosy;
	STACK.tz [STACK.lstack] = cosz;
    
	/* Polarization cosines:*/
	if (polarisation.Mag()) {
	    Double_t cospolx = polarisation.Px() / polarisation.Mag();
	    Double_t cospoly = polarisation.Py() / polarisation.Mag();
	    Double_t cospolz = sqrt(oneone - cospolx * cospolx - cospoly * cospoly);
	    STACK.txpol [STACK.lstack] = cospolx;
	    STACK.typol [STACK.lstack] = cospoly;
	    STACK.tzpol [STACK.lstack] = cospolz;
	}
	else {
	    STACK.txpol [STACK.lstack] = -twotwo;
	    STACK.typol [STACK.lstack] = +zerzer;
	    STACK.tzpol [STACK.lstack] = +zerzer;
	}
	
	/* Particle coordinates*/
	// Vertext coordinates;
	STACK.xa [STACK.lstack] = particle->Vx();
	STACK.ya [STACK.lstack] = particle->Vy();
	STACK.za [STACK.lstack] = particle->Vz();
    
	/*  Calculate the total kinetic energy of the primaries: don't change*/
	Int_t st_ilo =  STACK.ilo[STACK.lstack];
	if ( st_ilo != 0 )
	    EPISOR.tkesum += 
		((STACK.tke[STACK.lstack] + PAPROP.amdisc[st_ilo+6])
		 * STACK.wt[STACK.lstack]);
	else
	    EPISOR.tkesum += (STACK.tke[STACK.lstack] * STACK.wt[STACK.lstack]);
	
	/*  Here we ask for the region number of the hitting point.
	 *     NREG (LSTACK) = ...
	 *  The following line makes the starting region search much more
	 *  robust if particles are starting very close to a boundary:
	 */
	geocrs( STACK.tx[STACK.lstack], 
		STACK.ty[STACK.lstack], 
		STACK.tz[STACK.lstack] );
    
	Int_t idisc;

	georeg ( STACK.xa[STACK.lstack], 
		 STACK.ya[STACK.lstack], 
		 STACK.za[STACK.lstack],
		 STACK.nreg[STACK.lstack], 
		 idisc);//<-- dummy return variable not used
	/*  Do not change these cards:*/
	Int_t igeohsm1 = 1;
	Int_t igeohsm2 = -11;
	geohsm ( STACK.nhspnt[STACK.lstack], igeohsm1, igeohsm2, LTCLCM.mlattc );
	STACK.nlattc[STACK.lstack] = LTCLCM.mlattc;
	soevsv();
    } else {
        //
	// Next particle is optical photon
	//
	OPPHST.lstopp++;
	OPPHST.donear [OPPHST.lstopp - 1] = 0.;

	OPPHST.xoptph [OPPHST.lstopp - 1] = particle->Vx();
	OPPHST.yoptph [OPPHST.lstopp - 1] = particle->Vy();
	OPPHST.zoptph [OPPHST.lstopp - 1] = particle->Vz();

	OPPHST.txopph [OPPHST.lstopp - 1] = cosx;
	OPPHST.tyopph [OPPHST.lstopp - 1] = cosy;
	OPPHST.tzopph [OPPHST.lstopp - 1] = cosz;


	if (polarisation.Mag()) {
	    Double_t cospolx = polarisation.Px() / polarisation.Mag();
	    Double_t cospoly = polarisation.Py() / polarisation.Mag();
	    Double_t cospolz = sqrt(oneone - cospolx * cospolx - cospoly * cospoly);
	    OPPHST.txpopp [OPPHST.lstopp - 1] = cospolx;
	    OPPHST.typopp [OPPHST.lstopp - 1] = cospoly;
	    OPPHST.tzpopp [OPPHST.lstopp - 1] = cospolz;
	}
	else {
	    OPPHST.txpopp [OPPHST.lstopp - 1] = -twotwo;
	    OPPHST.typopp [OPPHST.lstopp - 1] = +zerzer;
	    OPPHST.tzpopp [OPPHST.lstopp - 1] = +zerzer;
	}
	
	geocrs( OPPHST.txopph[OPPHST.lstopp - 1], 
		OPPHST.tyopph[OPPHST.lstopp - 1], 
		OPPHST.tzopph[OPPHST.lstopp - 1] );
    
	Int_t idisc;

	georeg ( OPPHST.xoptph[OPPHST.lstopp - 1], 
		 OPPHST.yoptph[OPPHST.lstopp - 1], 
		 OPPHST.zoptph[OPPHST.lstopp - 1],
		 OPPHST.nregop[OPPHST.lstopp - 1], 
		 idisc);//<-- dummy return variable not used
	
	OPPHST.wtopph [OPPHST.lstopp - 1] = particle->GetWeight();
	OPPHST.poptph [OPPHST.lstopp - 1] = particle->P();
	OPPHST.agopph [OPPHST.lstopp - 1] = particle->T();	
	OPPHST.cmpopp [OPPHST.lstopp - 1] = +zerzer;
	OPPHST.loopph [OPPHST.lstopp - 1] = 0;
	OPPHST.louopp [OPPHST.lstopp - 1] = itrack;
    }
    
//
//  Pre-track actions at for primary tracks
//
    if (particleIsPrimary) {
	TVirtualMCApplication::Instance()->BeginPrimary();
	TVirtualMCApplication::Instance()->PreTrack();
    }
    
//
    if (debug) cout << "<== source(" << nomore << ")" << endl;
  }
}
Commit	Line	Data
b9d0a01d	1	// Fortran
	2	#include "TCallf77.h"
	3
	4	// Fluka commons
	5	#include "Fdblprc.h" //(DBLPRC) fluka common
	6	#include "Fdimpar.h" //(DIMPAR) fluka parameters
	7	#include "Fepisor.h" //(EPISOR) fluka common
	8	#include "Fstack.h" //(STACK) fluka common
	9	#include "Fstars.h" //(STARS) fluka common
	10	#include "Fbeam.h" //(BEAM) fluka common
	11	#include "Fpaprop.h" //(PAPROP) fluka common
	12	#include "Fltclcm.h" //(LTCLCM) fluka common
cfd35035	13	#include "Fopphst.h" //(OPPHST) fluka common
b9d0a01d	14	//#include "Fcaslim.h" //(CASLIM) fluka common
	15
	16	//Virutal MC
	17	#include "TFluka.h"
a7bb59a2	18
b9d0a01d	19	#include "TVirtualMCStack.h"
fbf08100	20	//#include "TVirtualMCApplication.h"
fbf08100	21
b9d0a01d	22	#include "TParticle.h"
	23	#include "TVector3.h"
	24
	25	//Other
eae0fe66	26	#include <Riostream.h>
b9d0a01d	27
	28	#ifndef WIN32
	29	# define source source_
	30	# define geocrs geocrs_
	31	# define georeg georeg_
	32	# define geohsm geohsm_
	33	# define soevsv soevsv_
	34	#else
	35	# define source SOURCE
	36	# define geocrs GEOCRS
	37	# define georeg GEOREG
	38	# define geohsm GEOHSM
	39	# define soevsv SOEVSV
	40	#endif
	41
b9d0a01d	42	extern "C" {
	43	//
	44	// Prototypes for FLUKA functions
	45	//
	46	void type_of_call geocrs(Double_t &, Double_t &, Double_t &);
	47	void type_of_call georeg(Double_t &, Double_t &, Double_t &,
	48	Int_t &, Int_t &);
	49	void type_of_call geohsm(Int_t &, Int_t &, Int_t &, Int_t &);
	50	void type_of_call soevsv();
	51	/*
	52	----------------------------------------------------------------------
	53	* *
	54	* Created on 07 january 1990 by Alfredo Ferrari & Paola Sala *
	55	* Infn - Milan *
	56	* *
	57	* Last change on 21-jun-98 by Alfredo Ferrari *
	58	* *
	59	* C++ version on 27-sep-02 by Isidro Gonzalez *
	60	* *
	61	* This is just an example of a possible user written source routine. *
	62	* note that the beam card still has some meaning - in the scoring the *
	63	* maximum momentum used in deciding the binning is taken from the *
	64	* beam momentum. Other beam card parameters are obsolete. *
	65	* *
	66	----------------------------------------------------------------------/
	67
	68	void source(Int_t& nomore) {
b496f27c	69	// Get the pointer to TFluka
2bc4c610	70	TFluka* fluka = (TFluka*)gMC;
b496f27c	71
2bc4c610	72	Int_t verbosityLevel = fluka->GetVerbosityLevel();
	73	Bool_t debug = (verbosityLevel>=3)?kTRUE:kFALSE;
	74	if (debug) {
ce60a136	75	cout << "==> source(" << nomore << ")" << endl;
ce60a136	76	cout << "\t* EPISOR.lsouit = " << (EPISOR.lsouit?'T':'F') << endl;
2bc4c610	77	}
b9d0a01d	78
2bc4c610	79	static Bool_t lfirst = true;
	80	static Bool_t particleIsPrimary = true;
	81	static Bool_t lastParticleWasPrimary = true;
b9d0a01d	82
ce60a136	83	nomore = 0;
b496f27c	84
b496f27c	85	// Get the stack
b9d0a01d	86	TVirtualMCStack* cppstack = fluka->GetStack();
b496f27c	87
ce60a136	88	TParticle* particle;
b9d0a01d	89	Int_t itrack = -1;
ce60a136	90	Int_t nprim = cppstack->GetNprimary();
	91	// Get the next particle from the stack
	92	particle = cppstack->PopNextTrack(itrack);
2bc4c610	93	fluka->SetTrackIsNew(kTRUE);
ce60a136	94
	95	// Is this a secondary not handled by Fluka, i.e. a particle added by user action ?
	96	lastParticleWasPrimary = particleIsPrimary;
	97
	98	if (itrack >= nprim) {
	99	particleIsPrimary = kFALSE;
	100	} else {
	101	particleIsPrimary = kTRUE;
	102	}
	103
ce60a136	104	if (lfirst) {
	105	EPISOR.tkesum = zerzer;
	106	lfirst = false;
	107	EPISOR.lussrc = true;
	108	} else {
	109	//
	110	// Post-track actions for primary track
	111	//
	112	if (particleIsPrimary) {
	113	TVirtualMCApplication::Instance()->PostTrack();
	114	TVirtualMCApplication::Instance()->FinishPrimary();
b496f27c	115	if ((itrack%10)==0) printf("=== TRACKING PRIMARY %d ===\n", itrack);
ce60a136	116	}
ce60a136	117	}
b9d0a01d	118
b496f27c	119	// Exit if itrack is negative (-1). Set lsouit to false to mark last track for this event
ce60a136	120
b9d0a01d	121	if (itrack<0) {
	122	nomore = 1;
	123	EPISOR.lsouit = false;
2bc4c610	124	if (debug) {
	125	cout << "\t* EPISOR.lsouit = " << (EPISOR.lsouit?'T':'F') << endl;
	126	cout << "\t* No more particles. Exiting..." << endl;
	127	cout << "<== source(" << nomore << ")" << endl;
	128	}
b9d0a01d	129	return;
b9d0a01d	130	}
ce60a136	131
b496f27c	132	//
	133	// Handle user event abortion
	134	if (fluka->EventIsStopped()) {
	135	printf("Event has been stopped by user !");
	136	fluka->SetStopEvent(kFALSE);
	137	nomore = 1;
	138	EPISOR.lsouit = false;
	139	return;
	140	}
	141
b9d0a01d	142	//Get some info about the particle and print it
ce60a136	143	//
	144	//pdg code
	145	Int_t pdg = particle->GetPdgCode();
b9d0a01d	146	TVector3 polarisation;
b9d0a01d	147	particle->GetPolarisation(polarisation);
2bc4c610	148	if (debug) {
	149	cout << "\t* Particle " << itrack << " retrieved..." << endl;
	150	cout << "\t\t+ Name = " << particle->GetName() << endl;
	151	cout << "\t\t+ PDG/Fluka code = " << pdg
	152	<< " / " << fluka->IdFromPDG(pdg) << endl;
	153	cout << "\t\t+ P = ("
	154	<< particle->Px() << " , "
	155	<< particle->Py() << " , "
	156	<< particle->Pz() << " ) --> "
6b51799c	157	<< particle->P() << " GeV "
	158	<< particle->Energy() << " GeV "
	159	<< particle->GetMass() << " GeV " << endl;
2bc4c610	160	}
b9d0a01d	161	/* Lstack is the stack counter: of course any time source is called it
	162	* must be =0
	163	*/
cfd35035	164	/* Cosines (tx,ty,tz)*/
	165	Double_t cosx = particle->Px()/particle->P();
	166	Double_t cosy = particle->Py()/particle->P();
	167	Double_t cosz = TMath::Sqrt(oneone - cosxcosx - cosycosy);
	168	if (particle->Pz() < 0.) cosz = -cosz;
ce60a136	169
b9d0a01d	170	//STACK.ilo[STACK.lstack] = BEAM.ijbeam;
cfd35035	171	if (pdg != 50000050 && pdg != 50000051) {
cfd35035	172	STACK.lstack++;
6b51799c	173	Int_t ifl = fluka-> IdFromPDG(pdg);
6b51799c	174	STACK.ilo[STACK.lstack] = ifl;
cfd35035	175	/* Wt is the weight of the particle*/
	176	STACK.wt[STACK.lstack] = oneone;
	177	STARS.weipri += STACK.wt[STACK.lstack];
	178
	179	STACK.lo[STACK.lstack] = 1;
	180
	181	/* User dependent flag:*/
	182	STACK.louse[STACK.lstack] = 0;
ce60a136	183
cfd35035	184	/* User dependent spare variables:*/
	185	Int_t ispr = 0;
	186	for (ispr = 0; ispr < mkbmx1; ispr++)
	187	STACK.sparek[STACK.lstack][ispr] = zerzer;
ce60a136	188
cfd35035	189	/* User dependent spare flags:*/
	190	for (ispr = 0; ispr < mkbmx2; ispr++)
	191	STACK.ispark[STACK.lstack][ispr] = 0;
ce60a136	192
cfd35035	193	/* Save the track number of the stack particle:*/
	194	STACK.ispark[STACK.lstack][mkbmx2-1] = itrack;
	195	STACK.nparma++;
	196	STACK.numpar[STACK.lstack] = STACK.nparma;
	197	STACK.nevent[STACK.lstack] = 0;
	198	STACK.dfnear[STACK.lstack] = +zerzer;
e5e3c7b1	199
cfd35035	200	/* Particle age (s)*/
cfd35035	201	STACK.agestk[STACK.lstack] = +zerzer;
e5e3c7b1	202	STACK.cmpath[STACK.lstack] = +zerzer;
cfd35035	203	STACK.aknshr[STACK.lstack] = -twotwo;
ce60a136	204
cfd35035	205	/* Group number for "low" energy neutrons, set to 0 anyway*/
	206	STACK.igroup[STACK.lstack] = 0;
	207
	208	/* Kinetic energy */
6b51799c	209	Double_t p = particle->P();
	210	Double_t mass = PAPROP.am[ifl + 6];
	211	STACK.tke[STACK.lstack] = TMath::Sqrt( p * p + mass * mass) - mass;
cfd35035	212	/* Particle momentum*/
6b51799c	213	STACK.pmom [STACK.lstack] = p;
cfd35035	214
	215	STACK.tx [STACK.lstack] = cosx;
	216	STACK.ty [STACK.lstack] = cosy;
	217	STACK.tz [STACK.lstack] = cosz;
b9d0a01d	218
cfd35035	219	/* Polarization cosines:*/
	220	if (polarisation.Mag()) {
	221	Double_t cospolx = polarisation.Px() / polarisation.Mag();
	222	Double_t cospoly = polarisation.Py() / polarisation.Mag();
	223	Double_t cospolz = sqrt(oneone - cospolx * cospolx - cospoly * cospoly);
	224	STACK.txpol [STACK.lstack] = cospolx;
	225	STACK.typol [STACK.lstack] = cospoly;
	226	STACK.tzpol [STACK.lstack] = cospolz;
	227	}
	228	else {
	229	STACK.txpol [STACK.lstack] = -twotwo;
	230	STACK.typol [STACK.lstack] = +zerzer;
	231	STACK.tzpol [STACK.lstack] = +zerzer;
	232	}
	233
	234	/* Particle coordinates*/
	235	// Vertext coordinates;
	236	STACK.xa [STACK.lstack] = particle->Vx();
	237	STACK.ya [STACK.lstack] = particle->Vy();
	238	STACK.za [STACK.lstack] = particle->Vz();
b9d0a01d	239
cfd35035	240	/* Calculate the total kinetic energy of the primaries: don't change*/
	241	Int_t st_ilo = STACK.ilo[STACK.lstack];
	242	if ( st_ilo != 0 )
	243	EPISOR.tkesum +=
	244	((STACK.tke[STACK.lstack] + PAPROP.amdisc[st_ilo+6])
	245	* STACK.wt[STACK.lstack]);
	246	else
	247	EPISOR.tkesum += (STACK.tke[STACK.lstack] * STACK.wt[STACK.lstack]);
	248
	249	/* Here we ask for the region number of the hitting point.
	250	* NREG (LSTACK) = ...
	251	* The following line makes the starting region search much more
	252	* robust if particles are starting very close to a boundary:
	253	*/
	254	geocrs( STACK.tx[STACK.lstack],
	255	STACK.ty[STACK.lstack],
	256	STACK.tz[STACK.lstack] );
b9d0a01d	257
cfd35035	258	Int_t idisc;
	259
	260	georeg ( STACK.xa[STACK.lstack],
	261	STACK.ya[STACK.lstack],
	262	STACK.za[STACK.lstack],
	263	STACK.nreg[STACK.lstack],
	264	idisc);//<-- dummy return variable not used
	265	/* Do not change these cards:*/
	266	Int_t igeohsm1 = 1;
	267	Int_t igeohsm2 = -11;
	268	geohsm ( STACK.nhspnt[STACK.lstack], igeohsm1, igeohsm2, LTCLCM.mlattc );
	269	STACK.nlattc[STACK.lstack] = LTCLCM.mlattc;
	270	soevsv();
	271	} else {
b496f27c	272	//
cfd35035	273	// Next particle is optical photon
b496f27c	274	//
cfd35035	275	OPPHST.lstopp++;
	276	OPPHST.donear [OPPHST.lstopp - 1] = 0.;
	277
	278	OPPHST.xoptph [OPPHST.lstopp - 1] = particle->Vx();
	279	OPPHST.yoptph [OPPHST.lstopp - 1] = particle->Vy();
	280	OPPHST.zoptph [OPPHST.lstopp - 1] = particle->Vz();
	281
	282	OPPHST.txopph [OPPHST.lstopp - 1] = cosx;
	283	OPPHST.tyopph [OPPHST.lstopp - 1] = cosy;
	284	OPPHST.tzopph [OPPHST.lstopp - 1] = cosz;
	285
	286
	287	if (polarisation.Mag()) {
	288	Double_t cospolx = polarisation.Px() / polarisation.Mag();
	289	Double_t cospoly = polarisation.Py() / polarisation.Mag();
	290	Double_t cospolz = sqrt(oneone - cospolx * cospolx - cospoly * cospoly);
	291	OPPHST.txpopp [OPPHST.lstopp - 1] = cospolx;
	292	OPPHST.typopp [OPPHST.lstopp - 1] = cospoly;
	293	OPPHST.tzpopp [OPPHST.lstopp - 1] = cospolz;
	294	}
	295	else {
	296	OPPHST.txpopp [OPPHST.lstopp - 1] = -twotwo;
	297	OPPHST.typopp [OPPHST.lstopp - 1] = +zerzer;
	298	OPPHST.tzpopp [OPPHST.lstopp - 1] = +zerzer;
	299	}
	300
	301	geocrs( OPPHST.txopph[OPPHST.lstopp - 1],
	302	OPPHST.tyopph[OPPHST.lstopp - 1],
	303	OPPHST.tzopph[OPPHST.lstopp - 1] );
ce60a136	304
cfd35035	305	Int_t idisc;
	306
	307	georeg ( OPPHST.xoptph[OPPHST.lstopp - 1],
	308	OPPHST.yoptph[OPPHST.lstopp - 1],
	309	OPPHST.zoptph[OPPHST.lstopp - 1],
	310	OPPHST.nregop[OPPHST.lstopp - 1],
	311	idisc);//<-- dummy return variable not used
	312
	313	OPPHST.wtopph [OPPHST.lstopp - 1] = particle->GetWeight();
	314	OPPHST.poptph [OPPHST.lstopp - 1] = particle->P();
	315	OPPHST.agopph [OPPHST.lstopp - 1] = particle->T();
e5e3c7b1	316	OPPHST.cmpopp [OPPHST.lstopp - 1] = +zerzer;
cfd35035	317	OPPHST.loopph [OPPHST.lstopp - 1] = 0;
cfd35035	318	OPPHST.louopp [OPPHST.lstopp - 1] = itrack;
cfd35035	319	}
cfd35035	320
ce60a136	321	//
	322	// Pre-track actions at for primary tracks
	323	//
	324	if (particleIsPrimary) {
	325	TVirtualMCApplication::Instance()->BeginPrimary();
	326	TVirtualMCApplication::Instance()->PreTrack();
	327	}
	328
	329	//
2bc4c610	330	if (debug) cout << "<== source(" << nomore << ")" << endl;
b9d0a01d	331	}
b9d0a01d	332	}