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1b337638 | 1 | // Import tracks from kinematics-tree / particle-stack. |
2 | // Preliminary/minimal solution. | |
a7867742 | 3 | #include "TParticlePDG.h" |
1b337638 | 4 | |
a7867742 | 5 | // PDG color indices |
b65b3044 | 6 | static Color_t DefCol = 30; |
7 | static Color_t ECol = 5; | |
8 | static Color_t MuCol = 6; | |
a7867742 | 9 | static Color_t GamaCol = 7; |
10 | static Color_t MesCol1 = 3; | |
11 | static Color_t MesCol2 = 38; | |
b65b3044 | 12 | static Color_t BarCol = 10; |
a7867742 | 13 | |
14 | ||
b65b3044 | 15 | Reve::TrackList* |
16 | kine_tracks(Double_t min_pt=0.5, Double_t max_pt=100, Bool_t pdg_col= kFALSE) | |
1b337638 | 17 | { |
18 | AliRunLoader* rl = Alieve::Event::AssertRunLoader(); | |
19 | rl->LoadKinematics(); | |
20 | AliStack* stack = rl->Stack(); | |
21 | if (!stack) { | |
22 | Error("kine_tracks.C", "can not get kinematics."); | |
23 | return 0; | |
24 | } | |
25 | ||
26 | Reve::TrackList* cont = new Reve::TrackList("Kine Tracks"); | |
27 | cont->SetMainColor(Color_t(6)); | |
28 | Reve::TrackRnrStyle* rnrStyle = cont->GetRnrStyle(); | |
29 | rnrStyle->fColor = 8; | |
30 | // !!! Watch the '-', apparently different sign convention then for ESD. | |
32aee3cf | 31 | rnrStyle->SetMagField( - gAlice->Field()->SolenoidField() ); |
1b337638 | 32 | |
33 | gReve->AddRenderElement(cont); | |
34 | ||
35 | Int_t count = 0; | |
43d68fc4 | 36 | Int_t N = stack->GetNtrack(); |
37 | for (Int_t i=0; i<N; ++i) | |
38 | { | |
39 | if(stack->IsPhysicalPrimary(i)) | |
40 | { | |
41 | TParticle* p = stack->Particle(i); | |
42 | Double_t pT = p->Pt(); | |
43 | if (pT<min_pt || pT>max_pt) continue; | |
44 | ||
45 | ++count; | |
46 | Reve::Track* track = new Reve::Track(p, i, rnrStyle); | |
47 | ||
48 | //PH The line below is replaced waiting for a fix in Root | |
49 | //PH which permits to use variable siza arguments in CINT | |
50 | //PH on some platforms (alphalinuxgcc, solariscc5, etc.) | |
51 | //PH track->SetName(Form("%s [%d]", p->GetName(), i)); | |
52 | char form[1000]; | |
53 | sprintf(form,"%s [%d]", p->GetName(), i); | |
54 | track->SetName(form); | |
a7867742 | 55 | TParticlePDG* pdgp = p->GetPDG(); |
56 | track->SetMainColor(get_pdg_color(pdgp->PdgCode())); | |
43d68fc4 | 57 | gReve->AddRenderElement(cont, track); |
58 | } | |
1b337638 | 59 | } |
60 | ||
43d68fc4 | 61 | // set path marks |
62 | Alieve::KineTools kt; | |
63 | rl->LoadTrackRefs(); | |
64 | kt.SetPathMarks(cont,stack, rl->TreeTR()); | |
65 | cont->SetEditPathMarks(kTRUE); | |
66 | ||
67 | ||
7be1e8cd | 68 | //PH const Text_t* tooltip = Form("pT ~ (%.2lf, %.2lf), N=%d", min_pt, max_pt, count); |
69 | char tooltip[1000]; | |
70 | sprintf(tooltip,"pT ~ (%.2lf, %.2lf), N=%d", min_pt, max_pt, count); | |
1b337638 | 71 | cont->SetTitle(tooltip); // Not broadcasted automatically ... |
72 | cont->UpdateItems(); | |
73 | ||
74 | cont->MakeTracks(); | |
75 | cont->MakeMarkers(); | |
76 | gReve->Redraw3D(); | |
77 | ||
78 | return cont; | |
79 | } | |
a7867742 | 80 | |
81 | ||
82 | Color_t get_pdg_color(Int_t pdg){ | |
83 | Int_t pdga = TMath::Abs(pdg); | |
84 | Color_t col = Reve::DefCol; | |
85 | ||
86 | // elementary particles | |
87 | if (pdga < 100) { | |
88 | switch (pdga) { | |
89 | case 11: | |
90 | col = ECol; break; | |
91 | case 12: | |
92 | col = MuCol; break; | |
93 | case 22: | |
94 | col = GammaCol; break; | |
95 | } | |
96 | } | |
97 | else if (pdga < 100000){ | |
98 | Int_t i = pdga; | |
99 | Int_t i0 = i%10; i /= 10; | |
100 | Int_t i1 = i%10; i /= 10; | |
101 | Int_t i2 = i%10; i /= 10; | |
102 | Int_t i3 = i%10; i /= 10; | |
103 | Int_t i4 = i%10; | |
104 | //printf("pdg(%d) quark indices (%d,%d,%d,%d,%d) \n",pdg, i4,i3,i2, i1, i0); | |
105 | // meson | |
106 | if ((i3 == 0) && ( i4 < 2)){ | |
107 | col = MesCol1; // quarks: i1,i2 (spin = i0) | |
108 | if(i1 == 3 || i2 == 3) | |
109 | col = MesCol2; | |
110 | } // barion | |
111 | else if ( i2 >= i1 && i3 >= i2 ) { | |
112 | col = BarCol; // quarks: i1,i2, i3 (spin = i0)) | |
113 | } | |
114 | } | |
115 | return col; | |
116 | } | |
c7b57c0b | 117 | |
118 | ||
119 | // Create mother and daughters tracks with given label. | |
120 | ||
121 | Reve::TrackList* | |
b65b3044 | 122 | kine_track(Int_t label, |
123 | Bool_t import_mother = kTRUE, | |
124 | Bool_t import_daughters = kTRUE, | |
125 | Reve::TrackList* cont = 0) | |
c7b57c0b | 126 | { |
c7b57c0b | 127 | if (label < 0) { |
128 | Warning("kine_track", "label not set."); | |
129 | return 0; | |
130 | } | |
131 | ||
132 | AliRunLoader* rl = Alieve::Event::AssertRunLoader(); | |
133 | rl->LoadKinematics(); | |
134 | AliStack* stack = rl->Stack(); | |
135 | TParticle* p = stack->Particle(label); | |
136 | ||
b65b3044 | 137 | if (import_mother || (import_daughters && p->GetNDaughters())) |
c7b57c0b | 138 | { |
b65b3044 | 139 | if (cont == 0) |
140 | { | |
141 | cont = new TrackList(Form("Kinematics of %d", label, p->GetNDaughters())); | |
c7b57c0b | 142 | |
143 | Reve::TrackRnrStyle* rnrStyle = cont->GetRnrStyle(); | |
144 | // !!! Watch the '-', apparently different sign convention then for ESD. | |
145 | rnrStyle->SetMagField( - gAlice->Field()->SolenoidField() ); | |
146 | char tooltip[1000]; | |
b65b3044 | 147 | sprintf(tooltip,"Ndaughters=%d", p->GetNDaughters()); |
c7b57c0b | 148 | cont->SetTitle(tooltip); |
149 | cont->SelectByPt(0.2, 100); | |
b65b3044 | 150 | rnrStyle->fColor = 8; |
c7b57c0b | 151 | rnrStyle->fMaxOrbs = 8; |
152 | cont->SetEditPathMarks(kTRUE); | |
153 | gReve->AddRenderElement(cont); | |
154 | } | |
155 | ||
b65b3044 | 156 | if (import_mother) |
157 | { | |
c7b57c0b | 158 | Track* track = new Reve::Track(p, label, cont->GetRnrStyle()); |
159 | char form[1000]; | |
160 | sprintf(form,"%s [%d]", p->GetName(), label); | |
161 | track->SetName(form); | |
162 | gReve->AddRenderElement(cont, track); | |
163 | } | |
164 | ||
b65b3044 | 165 | if (import_daughters && p->GetNDaughters()) |
c7b57c0b | 166 | { |
167 | for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d) | |
168 | { | |
169 | TParticle* dp = stack->Particle(d); | |
170 | Track* track = new Reve::Track(dp, d, cont->GetRnrStyle()); | |
171 | char form[1000]; | |
172 | sprintf(form,"%s [%d]", dp->GetName(), d); | |
173 | track->SetName(form); | |
174 | gReve->AddRenderElement(cont, track); | |
175 | } | |
176 | } | |
177 | } | |
178 | ||
b65b3044 | 179 | if (cont) |
180 | { | |
181 | // set path marks | |
182 | if(cont->GetEditPathMarks()) | |
183 | { | |
184 | Alieve::KineTools kt; | |
185 | rl->LoadTrackRefs(); | |
186 | kt.SetPathMarks(cont, stack, rl->TreeTR()); | |
187 | } | |
188 | // update list tree | |
189 | cont->UpdateItems(); | |
190 | cont->MakeTracks(); | |
191 | cont->MakeMarkers(); | |
c7b57c0b | 192 | } |
193 | ||
c7b57c0b | 194 | gReve->Redraw3D(); |
195 | return cont; | |
196 | } |