2 // Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
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 **************************************************************************/
10 // Import tracks from kinematics-tree / particle-stack.
11 // Preliminary/minimal solution.
13 #include "TParticlePDG.h"
16 kine_tracks(Double_t min_pt = 0.1, Double_t min_p = 0.2,
17 Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE,
18 Bool_t use_track_refs = kTRUE)
20 AliRunLoader* rl = AliEveEventManager::AssertRunLoader();
22 AliStack* stack = rl->Stack();
24 Error("kine_tracks.C", "can not get kinematics.");
28 gEve->DisableRedraw();
30 TEveTrackList* cont = new TEveTrackList("Kine Tracks");
31 cont->SetMainColor(Color_t(3));
32 TEveTrackPropagator* rnrStyle = cont->GetPropagator();
33 // !!! Watch the '-', apparently different sign convention then for ESD.
34 rnrStyle->SetMagField( -0.1*gAlice->Field()->SolenoidField() );
36 gEve->AddElement(cont);
38 Int_t N = stack->GetNtrack();
39 for (Int_t i=0; i<N; ++i)
41 if(stack->IsPhysicalPrimary(i))
43 TParticle* p = stack->Particle(i);
44 if (p->Pt() < min_pt && p->P() < min_p) continue;
47 TEveTrack* track = new TEveTrack(p, i, rnrStyle);
49 //PH The line below is replaced waiting for a fix in Root
50 //PH which permits to use variable siza arguments in CINT
51 //PH on some platforms (alphalinuxgcc, solariscc5, etc.)
52 //PH track->SetName(Form("%s [%d]", p->GetName(), i));
54 sprintf(form,"%s [%d]", p->GetName(), i);
57 set_track_color(track, pdg_col);
59 gEve->AddElement(track, cont);
62 kine_daughters(track, stack, min_pt, min_p, pdg_col, recurse);
68 kt.SetDaughterPathMarks(cont, stack, recurse);
69 if (use_track_refs && rl->LoadTrackRefs() == 0)
71 kt.SetTrackReferences(cont, rl->TreeTR(), recurse);
72 rnrStyle->SetEditPathMarks(kTRUE);
74 kt.SortPathMarks(cont, recurse);
76 //PH const Text_t* tooltip = Form("min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
78 sprintf(tooltip,"min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
79 cont->SetTitle(tooltip); // Not broadcasted automatically ...
82 cont->MakeTracks(recurse);
89 void kine_daughters(TEveTrack* parent, AliStack* stack,
90 Double_t min_pt, Double_t min_p,
91 Bool_t pdg_col, Bool_t recurse)
93 TParticle *p = stack->Particle(parent->GetLabel());
94 if (p->GetNDaughters() > 0)
96 TEveTrackPropagator* rs = parent->GetPropagator();
97 for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
99 TParticle* dp = stack->Particle(d);
100 if (dp->Pt() < min_pt && dp->P() < min_p) continue;
102 TEveTrack* dtrack = new TEveTrack(dp, d, rs);
104 sprintf(form,"%s [%d]", dp->GetName(), d);
105 dtrack->SetName(form);
106 dtrack->SetStdTitle();
107 set_track_color(dtrack, pdg_col);
109 gEve->AddElement(dtrack, parent);
112 kine_daughters(dtrack, stack, min_pt, min_p, pdg_col, recurse);
117 Color_t set_track_color(TEveTrack* t, Bool_t pdg_col)
120 t->SetMainColor(get_pdg_color(t->GetPdg()));
122 t->SetMainColor((Color_t)30);
125 Color_t get_pdg_color(Int_t pdg)
128 static const Color_t DefCol = 30;
129 static const Color_t ECol = 5;
130 static const Color_t MuCol = 6;
131 static const Color_t GammaCol = 7;
132 static const Color_t MesCol1 = 3;
133 static const Color_t MesCol2 = 38;
134 static const Color_t BarCol = 10;
136 Int_t pdga = TMath::Abs(pdg);
137 Color_t col = DefCol;
139 // elementary particles
147 col = GammaCol; break;
150 // mesons and barions
151 else if (pdga < 100000) {
153 Int_t i0 = i%10; i /= 10;
154 Int_t i1 = i%10; i /= 10;
155 Int_t i2 = i%10; i /= 10;
156 Int_t i3 = i%10; i /= 10;
158 //printf("pdg(%d) quark indices (%d,%d,%d,%d,%d) \n",pdg, i4,i3,i2, i1, i0);
160 if ((i3 == 0) && ( i4 < 2)){
161 col = MesCol1; // quarks: i1,i2 (spin = i0)
162 if(i1 == 3 || i2 == 3)
165 else if ( i2 >= i1 && i3 >= i2 ) {
166 col = BarCol; // quarks: i1,i2, i3 (spin = i0))
173 /******************************************************************************/
176 kine_track(Int_t label,
177 Bool_t import_mother = kTRUE, Bool_t import_daughters = kTRUE,
178 Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE,
179 TEveElement* cont = 0)
182 // Create mother and daughters tracks with given label.
183 // mother -> particle with label
184 // daughters -> daughters of label
187 Warning("kine_track", "label not set.");
191 AliRunLoader* rl = AliEveEventManager::AssertRunLoader();
192 rl->LoadKinematics();
193 AliStack* stack = rl->Stack();
194 if (label >= stack->GetNtrack())
196 Warning("kine_track", "label out of range.");
200 TParticle* p = stack->Particle(label);
202 if (import_mother || (import_daughters && p->GetNDaughters()))
204 TEveTrack* toptrack = 0;
205 TEveTrackList* tracklist = 0;
206 TEveTrackPropagator* rs = 0;
210 TEveTrackList* tlist = new TEveTrackList
211 (Form("Kinematics of %d", label, p->GetNDaughters()));
214 TEveTrackPropagator* rnrStyle = tlist->GetPropagator();
215 // !!! Watch the '-', apparently different sign convention then for ESD.
216 rnrStyle->SetMagField( -0.1*gAlice->Field()->SolenoidField() );
218 sprintf(tooltip,"Ndaughters=%d", p->GetNDaughters());
219 tlist->SetTitle(tooltip);
220 rnrStyle->fMaxOrbs = 2;
221 rnrStyle->SetEditPathMarks(kTRUE);
223 gEve->AddElement(cont);
224 rs = tlist->GetPropagator();
228 // check if container is TEveTrackList or TEveTrack (has rnr-style)
229 TEveTrack* t = dynamic_cast<TEveTrack*>(cont);
231 rs = t->GetPropagator();
233 TEveTrackList* l = dynamic_cast<TEveTrackList*>(cont);
235 rs = l->GetPropagator();
237 Error("kine_tracks.C", "TrackRenderStyle not set.");
243 TEveTrack* track = new TEveTrack(p, label, rs);
245 sprintf(form,"%s [%d]", p->GetName(), label);
246 track->SetName(form);
247 track->SetStdTitle();
248 set_track_color(track, pdg_col);
251 gEve->AddElement(track, cont);
255 if (import_daughters && p->GetNDaughters())
257 for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
259 TParticle* dp = stack->Particle(d);
260 TEveTrack* track = new TEveTrack(dp, d, rs);
262 sprintf(form,"%s [%d]", dp->GetName(), d);
263 track->SetName(form);
264 track->SetStdTitle();
265 set_track_color(track, pdg_col);
268 gEve->AddElement(track, cont);
271 kine_daughters(track, stack, 0, 0, pdg_col, recurse);