1 // Import tracks from kinematics-tree / particle-stack.
2 // Preliminary/minimal solution.
4 #include "TParticlePDG.h"
7 kine_tracks(Double_t min_pt = 0.1, Double_t min_p = 0.2,
8 Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE,
9 Bool_t use_track_refs = kTRUE)
11 AliRunLoader* rl = Alieve::Event::AssertRunLoader();
13 AliStack* stack = rl->Stack();
15 Error("kine_tracks.C", "can not get kinematics.");
19 gReve->DisableRedraw();
21 Reve::TrackList* cont = new Reve::TrackList("Kine Tracks");
22 cont->SetMainColor(Color_t(3));
23 Reve::TrackRnrStyle* rnrStyle = cont->GetRnrStyle();
24 // !!! Watch the '-', apparently different sign convention then for ESD.
25 rnrStyle->SetMagField( - gAlice->Field()->SolenoidField() );
27 gReve->AddRenderElement(cont);
29 Int_t N = stack->GetNtrack();
30 for (Int_t i=0; i<N; ++i)
32 if(stack->IsPhysicalPrimary(i))
34 TParticle* p = stack->Particle(i);
35 if (p->Pt() < min_pt && p->P() < min_p) continue;
38 Reve::Track* track = new Reve::Track(p, i, rnrStyle);
40 //PH The line below is replaced waiting for a fix in Root
41 //PH which permits to use variable siza arguments in CINT
42 //PH on some platforms (alphalinuxgcc, solariscc5, etc.)
43 //PH track->SetName(Form("%s [%d]", p->GetName(), i));
45 sprintf(form,"%s [%d]", p->GetName(), i);
48 set_track_color(track, pdg_col);
50 gReve->AddRenderElement(track, cont);
53 kine_daughters(track, stack, min_pt, min_p, pdg_col, recurse);
59 kt.SetDaughterPathMarks(cont, stack, recurse);
60 if (use_track_refs && rl->LoadTrackRefs() == 0)
62 kt.SetTrackReferences(cont, rl->TreeTR(), recurse);
63 rnrStyle->SetEditPathMarks(kTRUE);
65 kt.SortPathMarks(cont, recurse);
67 //PH const Text_t* tooltip = Form("min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
69 sprintf(tooltip,"min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count);
70 cont->SetTitle(tooltip); // Not broadcasted automatically ...
73 cont->MakeTracks(recurse);
74 gReve->EnableRedraw();
80 void kine_daughters(Reve::Track* parent, AliStack* stack,
81 Double_t min_pt, Double_t min_p,
82 Bool_t pdg_col, Bool_t recurse)
84 TParticle *p = stack->Particle(parent->GetLabel());
85 if (p->GetNDaughters() > 0)
87 Reve::TrackRnrStyle* rs = parent->GetRnrStyle();
88 for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
90 TParticle* dp = stack->Particle(d);
91 if (dp->Pt() < min_pt && dp->P() < min_p) continue;
93 Reve::Track* dtrack = new Reve::Track(dp, d, rs);
95 sprintf(form,"%s [%d]", dp->GetName(), d);
96 dtrack->SetName(form);
97 dtrack->SetStdTitle();
98 set_track_color(dtrack, pdg_col);
100 gReve->AddRenderElement(dtrack, parent);
103 kine_daughters(dtrack, stack, min_pt, min_p, pdg_col, recurse);
108 Color_t set_track_color(Reve::Track* t, Bool_t pdg_col)
111 t->SetMainColor(get_pdg_color(t->GetPdg()));
113 t->SetMainColor((Color_t)30);
116 Color_t get_pdg_color(Int_t pdg)
119 static const Color_t DefCol = 30;
120 static const Color_t ECol = 5;
121 static const Color_t MuCol = 6;
122 static const Color_t GammaCol = 7;
123 static const Color_t MesCol1 = 3;
124 static const Color_t MesCol2 = 38;
125 static const Color_t BarCol = 10;
127 Int_t pdga = TMath::Abs(pdg);
128 Color_t col = DefCol;
130 // elementary particles
138 col = GammaCol; break;
141 // mesons and barions
142 else if (pdga < 100000) {
144 Int_t i0 = i%10; i /= 10;
145 Int_t i1 = i%10; i /= 10;
146 Int_t i2 = i%10; i /= 10;
147 Int_t i3 = i%10; i /= 10;
149 //printf("pdg(%d) quark indices (%d,%d,%d,%d,%d) \n",pdg, i4,i3,i2, i1, i0);
151 if ((i3 == 0) && ( i4 < 2)){
152 col = MesCol1; // quarks: i1,i2 (spin = i0)
153 if(i1 == 3 || i2 == 3)
156 else if ( i2 >= i1 && i3 >= i2 ) {
157 col = BarCol; // quarks: i1,i2, i3 (spin = i0))
164 /******************************************************************************/
167 kine_track(Int_t label,
168 Bool_t import_mother = kTRUE, Bool_t import_daughters = kTRUE,
169 Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE,
170 Reve::RenderElement* cont = 0)
173 // Create mother and daughters tracks with given label.
174 // mother -> particle with label
175 // daughters -> daughters of label
178 Warning("kine_track", "label not set.");
182 AliRunLoader* rl = Alieve::Event::AssertRunLoader();
183 rl->LoadKinematics();
184 AliStack* stack = rl->Stack();
185 if (label >= stack->GetNtrack())
187 Warning("kine_track", "label out of range.");
191 TParticle* p = stack->Particle(label);
193 if (import_mother || (import_daughters && p->GetNDaughters()))
195 Reve::Track* toptrack = 0;
196 Reve::TrackList* tracklist = 0;
197 Reve::TrackRnrStyle* rs = 0;
201 Reve::TrackList* tlist = new Reve::TrackList
202 (Form("Kinematics of %d", label, p->GetNDaughters()));
205 Reve::TrackRnrStyle* rnrStyle = tlist->GetRnrStyle();
206 // !!! Watch the '-', apparently different sign convention then for ESD.
207 rnrStyle->SetMagField( - gAlice->Field()->SolenoidField() );
209 sprintf(tooltip,"Ndaughters=%d", p->GetNDaughters());
210 tlist->SetTitle(tooltip);
211 rnrStyle->fMaxOrbs = 2;
212 rnrStyle->SetEditPathMarks(kTRUE);
214 gReve->AddRenderElement(cont);
215 rs = tlist->GetRnrStyle();
219 // check if container is TrackList or Track (has rnr-style)
220 Reve::Track* t = dynamic_cast<Reve::Track*>(cont);
222 rs = t->GetRnrStyle();
224 Reve::TrackList* l = dynamic_cast<Reve::TrackList*>(cont);
226 rs = l->GetRnrStyle();
228 Error("kine_tracks.C", "TrackRenderStyle not set.");
234 Reve::Track* track = new Reve::Track(p, label, rs);
236 sprintf(form,"%s [%d]", p->GetName(), label);
237 track->SetName(form);
238 track->SetStdTitle();
239 set_track_color(track, pdg_col);
242 gReve->AddRenderElement(track, cont);
246 if (import_daughters && p->GetNDaughters())
248 for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d)
250 TParticle* dp = stack->Particle(d);
251 Reve::Track* track = new Reve::Track(dp, d, rs);
253 sprintf(form,"%s [%d]", dp->GetName(), d);
254 track->SetName(form);
255 track->SetStdTitle();
256 set_track_color(track, pdg_col);
259 gReve->AddRenderElement(track, cont);
262 kine_daughters(track, stack, 0, 0, pdg_col, recurse);