[u/mrichter/AliRoot.git] / EVE / alice-macros / kine_tracks.C

// $Id$
// Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007

/**************************************************************************
 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for          *
 * full copyright notice.                                                 *
 **************************************************************************/

/// \ingroup evemacros
/// \file kine_tracks.C
/// \brief Import tracks from kinematics-tree / particle-stack.
///
/// Preliminary/minimal solution.
///
/// \author Matevz Tadel & Alja Mrak-Tadel: 2006, 2007 

#if !defined(__CINT__) || defined(__MAKECINT__)
#include <TParticle.h>
#include <TParticlePDG.h>
#include <TEveManager.h>
#include <TEveTrackPropagator.h>

#include <AliMagF.h>
#include <AliStack.h>
#include <AliRunLoader.h>
#include <AliEveEventManager.h>
#include <AliEveMagField.h>
#include <AliEveTrack.h>
#include <AliEveKineTools.h>
#endif

// Use magnetic-field as retrieved from GRP.
Bool_t g_kine_tracks_true_field = kTRUE;

// Use Runge-Kutta track stepper.
Bool_t g_kine_tracks_rk_stepper = kFALSE;

//==============================================================================

void kine_track_propagator_setup(TEveTrackPropagator* trkProp);

TEveTrackList*
kine_tracks(Double_t min_pt  = 0,     Double_t min_p   = 0,
	    Bool_t   pdg_col = kTRUE, Bool_t   recurse = kTRUE,
	    Bool_t   use_track_refs = kTRUE);

void kine_daughters(AliEveTrack* parent,  AliStack* stack,
		    Double_t     min_pt,  Double_t  min_p,
		    Bool_t       pdg_col, Bool_t    recurse);

void    set_track_color(AliEveTrack* t, Bool_t pdg_col);
Color_t get_pdg_color(Int_t pdg);

TEveElement*
kine_track(Int_t  label,
	   Bool_t import_mother = kTRUE, Bool_t import_daughters = kTRUE,
	   Bool_t pdg_col       = kTRUE, Bool_t recurse          = kTRUE,
           TEveElement* cont = 0);

void kine_hide_neutrals(TEveElement* el=0, Int_t level=0);

//==============================================================================

void kine_track_propagator_setup(TEveTrackPropagator* trkProp)
{
  AliMagF* fld = AliEveEventManager::AssertMagField();

  if (g_kine_tracks_true_field)
  {
    trkProp->SetMagFieldObj(new AliEveMagField(fld));
  }
  else
  {
    trkProp->SetMagField(-0.1*fld->SolenoidField());
  }
  if (g_kine_tracks_rk_stepper)
  {
    trkProp->SetStepper(TEveTrackPropagator::kRungeKutta);
  }
}

//==============================================================================

TEveTrackList*
kine_tracks(Double_t min_pt,  Double_t min_p,
	    Bool_t   pdg_col, Bool_t   recurse,
	    Bool_t   use_track_refs)
{
  AliRunLoader* rl =  AliEveEventManager::AssertRunLoader();
  rl->LoadKinematics();
  AliStack* stack = rl->Stack();
  if (!stack)
  {
    Error("kine_tracks", "can not get kinematics.");
    return 0;
  }

  gEve->DisableRedraw();

  TEveTrackList* cont = new TEveTrackList("Kine Tracks");
  cont->SetMainColor(3);
  TEveTrackPropagator* trkProp = cont->GetPropagator();

  kine_track_propagator_setup(trkProp);

  gEve->AddElement(cont);
  Int_t count = 0;
  Int_t Np = stack->GetNprimary();
  for (Int_t i = 0; i < Np; ++i)
  {
    TParticle* p = stack->Particle(i);
    if (p->GetStatusCode() <= 1)
    {
      if (p->Pt() < min_pt && p->P() < min_p) continue;

      ++count;
      AliEveTrack* track = new AliEveTrack(p, i, trkProp);

      //PH The line below is replaced waiting for a fix in Root
      //PH which permits to use variable siza arguments in CINT
      //PH on some platforms (alphalinuxgcc, solariscc5, etc.)
      //PH    track->SetName(Form("%s [%d]", p->GetName(), i));
      char form[1000];
      sprintf(form,"%s [%d]", p->GetName(), i);
      track->SetName(form);
      track->SetStdTitle();
      Int_t ml = p->GetMother(0);
      if (ml != -1)
      {
        track->SetTitle(Form("%s\nMother label=%d\nMother Pdg=%d",
                             track->GetElementTitle(),
                             ml, stack->Particle(ml)->GetPdgCode()));
      }
      set_track_color(track, pdg_col);

      gEve->AddElement(track, cont);

      if (recurse)
	kine_daughters(track, stack, min_pt, min_p, pdg_col, recurse);
    }
  }

  // set path marks
  AliEveKineTools kt;
  kt.SetDaughterPathMarks(cont, stack, recurse);
  if (use_track_refs && rl->LoadTrackRefs() == 0)
  {
    kt.SetTrackReferences(cont, rl->TreeTR(), recurse);
    trkProp->SetEditPathMarks(kTRUE);
  }
  kt.SortPathMarks(cont, recurse);

  //PH  const Text_t* tooltip = Form("min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
  char tooltip[1000];
  sprintf(tooltip,"min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
  cont->SetTitle(tooltip); // Not broadcasted automatically ...

  cont->MakeTracks(recurse);
  gEve->EnableRedraw();
  gEve->Redraw3D();

  return cont;
}

void kine_daughters(AliEveTrack* parent,  AliStack* stack,
		    Double_t     min_pt,  Double_t  min_p,
		    Bool_t       pdg_col, Bool_t    recurse)
{
  TParticle *p = stack->Particle(parent->GetLabel());
  if (p->GetNDaughters() > 0)
  {
    TEveTrackPropagator* rs = parent->GetPropagator();
    for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
    {
      TParticle* dp = stack->Particle(d);
      if (dp->Pt() < min_pt && dp->P() < min_p) continue;

      AliEveTrack* dtrack = new AliEveTrack(dp, d, rs);
      char form[1000];
      sprintf(form,"%s [%d]", dp->GetName(), d);
      dtrack->SetName(form);
      dtrack->SetStdTitle();
      set_track_color(dtrack, pdg_col);

      gEve->AddElement(dtrack, parent);

      if (recurse)
	kine_daughters(dtrack, stack, min_pt, min_p, pdg_col, recurse);
    }
  }
}

//==============================================================================

void set_track_color(AliEveTrack* t, Bool_t pdg_col)
{
  if (pdg_col)
    t->SetMainColor(get_pdg_color(t->GetPdg()));
  else
    t->SetMainColor(30);
}

Color_t get_pdg_color(Int_t pdg)
{
  // PDG color indices
  static const Color_t DefCol   = 30;
  static const Color_t ECol     = 5;
  static const Color_t MuCol    = 6;
  static const Color_t GammaCol = 7;
  static const Color_t MesCol1  = 3;
  static const Color_t MesCol2  = 38;
  static const Color_t BarCol   = 10;

  Int_t pdga  = TMath::Abs(pdg);
  Color_t col = DefCol;

  // elementary  particles
  if (pdga < 100) {
    switch (pdga) {
      case 11:
	col = ECol; break;
      case 12:
	col = MuCol; break;
      case 22:
	col = GammaCol; break;
    }
  }
  // mesons and barions
  else if (pdga < 100000) {
    Int_t i  = pdga;
    // Int_t i0 = i%10;  // Not used at the moment.
    i /= 10;
    Int_t i1 = i%10; i /= 10;
    Int_t i2 = i%10; i /= 10;
    Int_t i3 = i%10; i /= 10;
    Int_t i4 = i%10;
    //printf("pdg(%d) quark indices (%d,%d,%d,%d,%d) \n",pdg, i4,i3,i2, i1, i0);
    // meson
    if ((i3 == 0) && ( i4 < 2)){
      col = MesCol1; // quarks: i1,i2 (spin = i0)
      if(i1 == 3 || i2 == 3)
	col = MesCol2;
    } // barion
    else if ( i2 >= i1 && i3 >= i2 ) {
      col = BarCol; // quarks: i1,i2, i3 (spin = i0))
    }
  }

  return col;
}

//==============================================================================

TEveElement*
kine_track(Int_t  label,
	   Bool_t import_mother, Bool_t import_daughters,
	   Bool_t pdg_col,       Bool_t recurse,
           TEveElement* cont)
{
  // Create mother and daughters tracks with given label.
  // mother     -> particle with label
  // daughters  -> daughters of label

  if (label < 0) {
    Warning("kine_track", "label not set.");
    return 0;
  }

  AliRunLoader* rl =  AliEveEventManager::AssertRunLoader();
  rl->LoadKinematics();
  AliStack* stack = rl->Stack();
  if (!stack)
  {
     Warning("kine_track", "can not get kinematics.");
    return 0;
  }
  if (label >= stack->GetNtrack())
  {
    Warning("kine_track", "label out of range.");
    return 0;
  }

  TParticle* p = stack->Particle(label);

  if (import_mother || (import_daughters && p->GetNDaughters()))
  {
    TEveTrackPropagator* rs = 0;

    if (cont == 0)
    {
      TEveTrackList* tlist = new TEveTrackList
	(Form("Kinematics of %d %d", label, p->GetNDaughters()));
      cont = tlist;

      TEveTrackPropagator* trkProp = tlist->GetPropagator();

      kine_track_propagator_setup(trkProp);

      char tooltip[1000];
      sprintf(tooltip,"Ndaughters=%d", p->GetNDaughters());
      tlist->SetTitle(tooltip);
      trkProp->SetMaxOrbs(2);
      trkProp->SetEditPathMarks(kTRUE);

      gEve->AddElement(cont);
      rs = tlist->GetPropagator();
    }
    else
    {
      // check if container is TEveTrackList or AliEveTrack (has rnr-style)
      AliEveTrack* t = dynamic_cast<AliEveTrack*>(cont);
      if (t) {
	rs = t->GetPropagator();
      } else {
        TEveTrackList* l = dynamic_cast<TEveTrackList*>(cont);
        if (l)
	  rs = l->GetPropagator();
        else
	  Error("kine_tracks.C", "TrackRenderStyle not set.");
      }
    }

    if (import_mother)
    {
      AliEveTrack* track = new AliEveTrack(p, label, rs);
      char form[1000];
      sprintf(form,"%s [%d]", p->GetName(), label);
      track->SetName(form);
      track->SetStdTitle();
      set_track_color(track, pdg_col);

      track->MakeTrack();
      gEve->AddElement(track, cont);
      cont = track;
    }

    if (import_daughters && p->GetNDaughters())
    {
      for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
      {
	TParticle* dp = stack->Particle(d);
	AliEveTrack* track = new AliEveTrack(dp, d, rs);
	char form[1000];
	sprintf(form,"%s [%d]", dp->GetName(), d);
	track->SetName(form);
	track->SetStdTitle();
	set_track_color(track, pdg_col);

        track->MakeTrack();
	gEve->AddElement(track, cont);

	if (recurse)
	  kine_daughters(track, stack, 0, 0, pdg_col, recurse);
      }
    }
  }

  gEve->Redraw3D();
  return cont;
}

//==============================================================================

void kine_hide_neutrals(TEveElement* el, Int_t level)
{
  if (el == 0)
  {
    el = gEve->GetCurrentEvent()->FindChild("Kine Tracks");
    if (!el)
      return;
  }

  TEveTrack* t = dynamic_cast<TEveTrack*>(el);
  if (t && t->GetCharge() == 0)
    t->SetRnrSelf(kFALSE);

  for (TEveElement::List_i i = el->BeginChildren(); i != el->EndChildren(); ++i)
  {
    kine_hide_neutrals(*i, level + 1);
  }

  if (level == 0)
    gEve->Redraw3D();
}
Commit	Line	Data
	1	// $Id$
	2	// Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
	3
	4	/**************************************************************************
	5	* Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
	6	* See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
	7	* full copyright notice. *
	8	**************************************************************************/
	9
	10	/// \ingroup evemacros
	11	/// \file kine_tracks.C
	12	/// \brief Import tracks from kinematics-tree / particle-stack.
	13	///
	14	/// Preliminary/minimal solution.
	15	///
	16	/// \author Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
	17
	18	#if !defined(__CINT__) \|\| defined(__MAKECINT__)
	19	#include <TParticle.h>
	20	#include <TParticlePDG.h>
	21	#include <TEveManager.h>
	22	#include <TEveTrackPropagator.h>
	23
	24	#include <AliMagF.h>
	25	#include <AliStack.h>
	26	#include <AliRunLoader.h>
	27	#include <AliEveEventManager.h>
	28	#include <AliEveMagField.h>
	29	#include <AliEveTrack.h>
	30	#include <AliEveKineTools.h>
	31	#endif
	32
	33	// Use magnetic-field as retrieved from GRP.
	34	Bool_t g_kine_tracks_true_field = kTRUE;
	35
	36	// Use Runge-Kutta track stepper.
	37	Bool_t g_kine_tracks_rk_stepper = kFALSE;
	38
	39	//==============================================================================
	40
	41	void kine_track_propagator_setup(TEveTrackPropagator* trkProp);
	42
	43	TEveTrackList*
	44	kine_tracks(Double_t min_pt = 0, Double_t min_p = 0,
	45	Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE,
	46	Bool_t use_track_refs = kTRUE);
	47
	48	void kine_daughters(AliEveTrack* parent, AliStack* stack,
	49	Double_t min_pt, Double_t min_p,
	50	Bool_t pdg_col, Bool_t recurse);
	51
	52	void set_track_color(AliEveTrack* t, Bool_t pdg_col);
	53	Color_t get_pdg_color(Int_t pdg);
	54
	55	TEveElement*
	56	kine_track(Int_t label,
	57	Bool_t import_mother = kTRUE, Bool_t import_daughters = kTRUE,
	58	Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE,
	59	TEveElement* cont = 0);
	60
	61	void kine_hide_neutrals(TEveElement* el=0, Int_t level=0);
	62
	63	//==============================================================================
	64
	65	void kine_track_propagator_setup(TEveTrackPropagator* trkProp)
	66	{
	67	AliMagF* fld = AliEveEventManager::AssertMagField();
	68
	69	if (g_kine_tracks_true_field)
	70	{
	71	trkProp->SetMagFieldObj(new AliEveMagField(fld));
	72	}
	73	else
	74	{
	75	trkProp->SetMagField(-0.1*fld->SolenoidField());
	76	}
	77	if (g_kine_tracks_rk_stepper)
	78	{
	79	trkProp->SetStepper(TEveTrackPropagator::kRungeKutta);
	80	}
	81	}
	82
	83	//==============================================================================
	84
	85	TEveTrackList*
	86	kine_tracks(Double_t min_pt, Double_t min_p,
	87	Bool_t pdg_col, Bool_t recurse,
	88	Bool_t use_track_refs)
	89	{
	90	AliRunLoader* rl = AliEveEventManager::AssertRunLoader();
	91	rl->LoadKinematics();
	92	AliStack* stack = rl->Stack();
	93	if (!stack)
	94	{
	95	Error("kine_tracks", "can not get kinematics.");
	96	return 0;
	97	}
	98
	99	gEve->DisableRedraw();
	100
	101	TEveTrackList* cont = new TEveTrackList("Kine Tracks");
	102	cont->SetMainColor(3);
	103	TEveTrackPropagator* trkProp = cont->GetPropagator();
	104
	105	kine_track_propagator_setup(trkProp);
	106
	107	gEve->AddElement(cont);
	108	Int_t count = 0;
	109	Int_t Np = stack->GetNprimary();
	110	for (Int_t i = 0; i < Np; ++i)
	111	{
	112	TParticle* p = stack->Particle(i);
	113	if (p->GetStatusCode() <= 1)
	114	{
	115	if (p->Pt() < min_pt && p->P() < min_p) continue;
	116
	117	++count;
	118	AliEveTrack* track = new AliEveTrack(p, i, trkProp);
	119
	120	//PH The line below is replaced waiting for a fix in Root
	121	//PH which permits to use variable siza arguments in CINT
	122	//PH on some platforms (alphalinuxgcc, solariscc5, etc.)
	123	//PH track->SetName(Form("%s [%d]", p->GetName(), i));
	124	char form[1000];
	125	sprintf(form,"%s [%d]", p->GetName(), i);
	126	track->SetName(form);
	127	track->SetStdTitle();
	128	Int_t ml = p->GetMother(0);
	129	if (ml != -1)
	130	{
	131	track->SetTitle(Form("%s\nMother label=%d\nMother Pdg=%d",
	132	track->GetElementTitle(),
	133	ml, stack->Particle(ml)->GetPdgCode()));
	134	}
	135	set_track_color(track, pdg_col);
	136
	137	gEve->AddElement(track, cont);
	138
	139	if (recurse)
	140	kine_daughters(track, stack, min_pt, min_p, pdg_col, recurse);
	141	}
	142	}
	143
	144	// set path marks
	145	AliEveKineTools kt;
	146	kt.SetDaughterPathMarks(cont, stack, recurse);
	147	if (use_track_refs && rl->LoadTrackRefs() == 0)
	148	{
	149	kt.SetTrackReferences(cont, rl->TreeTR(), recurse);
	150	trkProp->SetEditPathMarks(kTRUE);
	151	}
	152	kt.SortPathMarks(cont, recurse);
	153
	154	//PH const Text_t* tooltip = Form("min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
	155	char tooltip[1000];
	156	sprintf(tooltip,"min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
	157	cont->SetTitle(tooltip); // Not broadcasted automatically ...
	158
	159	cont->MakeTracks(recurse);
	160	gEve->EnableRedraw();
	161	gEve->Redraw3D();
	162
	163	return cont;
	164	}
	165
	166	void kine_daughters(AliEveTrack* parent, AliStack* stack,
	167	Double_t min_pt, Double_t min_p,
	168	Bool_t pdg_col, Bool_t recurse)
	169	{
	170	TParticle *p = stack->Particle(parent->GetLabel());
	171	if (p->GetNDaughters() > 0)
	172	{
	173	TEveTrackPropagator* rs = parent->GetPropagator();
	174	for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
	175	{
	176	TParticle* dp = stack->Particle(d);
	177	if (dp->Pt() < min_pt && dp->P() < min_p) continue;
	178
	179	AliEveTrack* dtrack = new AliEveTrack(dp, d, rs);
	180	char form[1000];
	181	sprintf(form,"%s [%d]", dp->GetName(), d);
	182	dtrack->SetName(form);
	183	dtrack->SetStdTitle();
	184	set_track_color(dtrack, pdg_col);
	185
	186	gEve->AddElement(dtrack, parent);
	187
	188	if (recurse)
	189	kine_daughters(dtrack, stack, min_pt, min_p, pdg_col, recurse);
	190	}
	191	}
	192	}
	193
	194	//==============================================================================
	195
	196	void set_track_color(AliEveTrack* t, Bool_t pdg_col)
	197	{
	198	if (pdg_col)
	199	t->SetMainColor(get_pdg_color(t->GetPdg()));
	200	else
	201	t->SetMainColor(30);
	202	}
	203
	204	Color_t get_pdg_color(Int_t pdg)
	205	{
	206	// PDG color indices
	207	static const Color_t DefCol = 30;
	208	static const Color_t ECol = 5;
	209	static const Color_t MuCol = 6;
	210	static const Color_t GammaCol = 7;
	211	static const Color_t MesCol1 = 3;
	212	static const Color_t MesCol2 = 38;
	213	static const Color_t BarCol = 10;
	214
	215	Int_t pdga = TMath::Abs(pdg);
	216	Color_t col = DefCol;
	217
	218	// elementary particles
	219	if (pdga < 100) {
	220	switch (pdga) {
	221	case 11:
	222	col = ECol; break;
	223	case 12:
	224	col = MuCol; break;
	225	case 22:
	226	col = GammaCol; break;
	227	}
	228	}
	229	// mesons and barions
	230	else if (pdga < 100000) {
	231	Int_t i = pdga;
	232	// Int_t i0 = i%10; // Not used at the moment.
	233	i /= 10;
	234	Int_t i1 = i%10; i /= 10;
	235	Int_t i2 = i%10; i /= 10;
	236	Int_t i3 = i%10; i /= 10;
	237	Int_t i4 = i%10;
	238	//printf("pdg(%d) quark indices (%d,%d,%d,%d,%d) \n",pdg, i4,i3,i2, i1, i0);
	239	// meson
	240	if ((i3 == 0) && ( i4 < 2)){
	241	col = MesCol1; // quarks: i1,i2 (spin = i0)
	242	if(i1 == 3 \|\| i2 == 3)
	243	col = MesCol2;
	244	} // barion
	245	else if ( i2 >= i1 && i3 >= i2 ) {
	246	col = BarCol; // quarks: i1,i2, i3 (spin = i0))
	247	}
	248	}
	249
	250	return col;
	251	}
	252
	253	//==============================================================================
	254
	255	TEveElement*
	256	kine_track(Int_t label,
	257	Bool_t import_mother, Bool_t import_daughters,
	258	Bool_t pdg_col, Bool_t recurse,
	259	TEveElement* cont)
	260	{
	261	// Create mother and daughters tracks with given label.
	262	// mother -> particle with label
	263	// daughters -> daughters of label
	264
	265	if (label < 0) {
	266	Warning("kine_track", "label not set.");
	267	return 0;
	268	}
	269
	270	AliRunLoader* rl = AliEveEventManager::AssertRunLoader();
	271	rl->LoadKinematics();
	272	AliStack* stack = rl->Stack();
	273	if (!stack)
	274	{
	275	Warning("kine_track", "can not get kinematics.");
	276	return 0;
	277	}
	278	if (label >= stack->GetNtrack())
	279	{
	280	Warning("kine_track", "label out of range.");
	281	return 0;
	282	}
	283
	284	TParticle* p = stack->Particle(label);
	285
	286	if (import_mother \|\| (import_daughters && p->GetNDaughters()))
	287	{
	288	TEveTrackPropagator* rs = 0;
	289
	290	if (cont == 0)
	291	{
	292	TEveTrackList* tlist = new TEveTrackList
	293	(Form("Kinematics of %d %d", label, p->GetNDaughters()));
	294	cont = tlist;
	295
	296	TEveTrackPropagator* trkProp = tlist->GetPropagator();
	297
	298	kine_track_propagator_setup(trkProp);
	299
	300	char tooltip[1000];
	301	sprintf(tooltip,"Ndaughters=%d", p->GetNDaughters());
	302	tlist->SetTitle(tooltip);
	303	trkProp->SetMaxOrbs(2);
	304	trkProp->SetEditPathMarks(kTRUE);
	305
	306	gEve->AddElement(cont);
	307	rs = tlist->GetPropagator();
	308	}
	309	else
	310	{
	311	// check if container is TEveTrackList or AliEveTrack (has rnr-style)
	312	AliEveTrack* t = dynamic_cast<AliEveTrack*>(cont);
	313	if (t) {
	314	rs = t->GetPropagator();
	315	} else {
	316	TEveTrackList* l = dynamic_cast<TEveTrackList*>(cont);
	317	if (l)
	318	rs = l->GetPropagator();
	319	else
	320	Error("kine_tracks.C", "TrackRenderStyle not set.");
	321	}
	322	}
	323
	324	if (import_mother)
	325	{
	326	AliEveTrack* track = new AliEveTrack(p, label, rs);
	327	char form[1000];
	328	sprintf(form,"%s [%d]", p->GetName(), label);
	329	track->SetName(form);
	330	track->SetStdTitle();
	331	set_track_color(track, pdg_col);
	332
	333	track->MakeTrack();
	334	gEve->AddElement(track, cont);
	335	cont = track;
	336	}
	337
	338	if (import_daughters && p->GetNDaughters())
	339	{
	340	for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
	341	{
	342	TParticle* dp = stack->Particle(d);
	343	AliEveTrack* track = new AliEveTrack(dp, d, rs);
	344	char form[1000];
	345	sprintf(form,"%s [%d]", dp->GetName(), d);
	346	track->SetName(form);
	347	track->SetStdTitle();
	348	set_track_color(track, pdg_col);
	349
	350	track->MakeTrack();
	351	gEve->AddElement(track, cont);
	352
	353	if (recurse)
	354	kine_daughters(track, stack, 0, 0, pdg_col, recurse);
	355	}
	356	}
	357	}
	358
	359	gEve->Redraw3D();
	360	return cont;
	361	}
	362
	363	//==============================================================================
	364
	365	void kine_hide_neutrals(TEveElement* el, Int_t level)
	366	{
	367	if (el == 0)
	368	{
	369	el = gEve->GetCurrentEvent()->FindChild("Kine Tracks");
	370	if (!el)
	371	return;
	372	}
	373
	374	TEveTrack* t = dynamic_cast<TEveTrack*>(el);
	375	if (t && t->GetCharge() == 0)
	376	t->SetRnrSelf(kFALSE);
	377
	378	for (TEveElement::List_i i = el->BeginChildren(); i != el->EndChildren(); ++i)
	379	{
	380	kine_hide_neutrals(*i, level + 1);
	381	}
	382
	383	if (level == 0)
	384	gEve->Redraw3D();
	385	}