-// Import tracks from kinematics-tree / particle-stack.
-// Preliminary/minimal solution.
+// $Id$
+// Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
-Reve::TrackList* kine_tracks(Double_t min_pt=0.5, Double_t max_pt=100)
+/**************************************************************************
+ * 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 <EveBase/AliEveEventManager.h>
+#include <EveBase/AliEveMagField.h>
+#include <EveBase/AliEveTrack.h>
+#include <EveBase/AliEveKineTools.h>
+
+#include <AliRunLoader.h>
+#include <AliStack.h>
+#include <AliMagF.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 = Alieve::Event::AssertRunLoader();
+ AliRunLoader* rl = AliEveEventManager::AssertRunLoader();
rl->LoadKinematics();
AliStack* stack = rl->Stack();
- if (!stack) {
- Error("kine_tracks.C", "can not get kinematics.");
+ if (!stack)
+ {
+ Error("kine_tracks", "can not get kinematics.");
return 0;
}
- Reve::TrackList* cont = new Reve::TrackList("Kine Tracks");
- cont->SetMainColor(Color_t(6));
- Reve::TrackRnrStyle* rnrStyle = cont->GetRnrStyle();
- rnrStyle->fColor = 8;
- // !!! Watch the '-', apparently different sign convention then for ESD.
- rnrStyle->SetMagField( - gAlice->Field()->SolenoidField() );
+ gEve->DisableRedraw();
- gReve->AddRenderElement(cont);
+ 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 N = stack->GetNtrack();
- for (Int_t i=0; i<N; ++i) {
+ Int_t Np = stack->GetNprimary();
+ for (Int_t i = 0; i < Np; ++i)
+ {
TParticle* p = stack->Particle(i);
- Double_t pT = p->Pt();
- if (pT<min_pt || pT>max_pt) continue;
-
- ++count;
- Reve::Track* track = new Reve::Track(p, i, rnrStyle);
- //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);
- gReve->AddRenderElement(cont, track);
- }
-
- //PH const Text_t* tooltip = Form("pT ~ (%.2lf, %.2lf), N=%d", min_pt, max_pt, count);
+ 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,"pT ~ (%.2lf, %.2lf), N=%d", min_pt, max_pt, count);
+ sprintf(tooltip,"min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
cont->SetTitle(tooltip); // Not broadcasted automatically ...
- cont->UpdateItems();
- cont->MakeTracks();
- cont->MakeMarkers();
- gReve->Redraw3D();
+ 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();
+}