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d810d0de | 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 * | |
51346b82 | 7 | * full copyright notice. * |
d810d0de | 8 | **************************************************************************/ |
1b337638 | 9 | // Import tracks from kinematics-tree / particle-stack. |
10 | // Preliminary/minimal solution. | |
11 | ||
fc9514f5 | 12 | #include "TParticlePDG.h" |
a7867742 | 13 | |
84aff7a4 | 14 | TEveTrackList* |
ef9d2241 | 15 | kine_tracks(Double_t min_pt = 0.1, Double_t min_p = 0.2, |
9a040a65 | 16 | Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE, |
17 | Bool_t use_track_refs = kTRUE) | |
1b337638 | 18 | { |
d810d0de | 19 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); |
1b337638 | 20 | rl->LoadKinematics(); |
21 | AliStack* stack = rl->Stack(); | |
22 | if (!stack) { | |
23 | Error("kine_tracks.C", "can not get kinematics."); | |
24 | return 0; | |
25 | } | |
26 | ||
84aff7a4 | 27 | gEve->DisableRedraw(); |
51346b82 | 28 | |
29 | TEveTrackList* cont = new TEveTrackList("Kine Tracks"); | |
32e219c2 | 30 | cont->SetMainColor(Color_t(3)); |
84aff7a4 | 31 | TEveTrackPropagator* rnrStyle = cont->GetPropagator(); |
1b337638 | 32 | // !!! Watch the '-', apparently different sign convention then for ESD. |
32aee3cf | 33 | rnrStyle->SetMagField( - gAlice->Field()->SolenoidField() ); |
1b337638 | 34 | |
84aff7a4 | 35 | gEve->AddElement(cont); |
1b337638 | 36 | Int_t count = 0; |
43d68fc4 | 37 | Int_t N = stack->GetNtrack(); |
51346b82 | 38 | for (Int_t i=0; i<N; ++i) |
43d68fc4 | 39 | { |
51346b82 | 40 | if(stack->IsPhysicalPrimary(i)) |
43d68fc4 | 41 | { |
42 | TParticle* p = stack->Particle(i); | |
ef9d2241 | 43 | if (p->Pt() < min_pt && p->P() < min_p) continue; |
43d68fc4 | 44 | |
45 | ++count; | |
84aff7a4 | 46 | TEveTrack* track = new TEveTrack(p, i, rnrStyle); |
51346b82 | 47 | |
43d68fc4 | 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); | |
fc9514f5 | 55 | track->SetStdTitle(); |
56 | set_track_color(track, pdg_col); | |
57 | ||
84aff7a4 | 58 | gEve->AddElement(track, cont); |
ef9d2241 | 59 | |
60 | if (recurse) | |
61 | kine_daughters(track, stack, min_pt, min_p, pdg_col, recurse); | |
43d68fc4 | 62 | } |
1b337638 | 63 | } |
ef9d2241 | 64 | |
43d68fc4 | 65 | // set path marks |
51346b82 | 66 | AliEveKineTools kt; |
ef9d2241 | 67 | kt.SetDaughterPathMarks(cont, stack, recurse); |
32e219c2 | 68 | if (use_track_refs && rl->LoadTrackRefs() == 0) |
9a040a65 | 69 | { |
70 | kt.SetTrackReferences(cont, rl->TreeTR(), recurse); | |
32e219c2 | 71 | rnrStyle->SetEditPathMarks(kTRUE); |
9a040a65 | 72 | } |
73 | kt.SortPathMarks(cont, recurse); | |
43d68fc4 | 74 | |
ef9d2241 | 75 | //PH const Text_t* tooltip = Form("min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count); |
7be1e8cd | 76 | char tooltip[1000]; |
ef9d2241 | 77 | sprintf(tooltip,"min pT=%.2lf, min P=%.2lf), N=%d", min_pt, min_p, count); |
1b337638 | 78 | cont->SetTitle(tooltip); // Not broadcasted automatically ... |
79 | cont->UpdateItems(); | |
80 | ||
ef9d2241 | 81 | cont->MakeTracks(recurse); |
84aff7a4 | 82 | gEve->EnableRedraw(); |
83 | gEve->Redraw3D(); | |
1b337638 | 84 | |
85 | return cont; | |
86 | } | |
a7867742 | 87 | |
84aff7a4 | 88 | void kine_daughters(TEveTrack* parent, AliStack* stack, |
ef9d2241 | 89 | Double_t min_pt, Double_t min_p, |
90 | Bool_t pdg_col, Bool_t recurse) | |
91 | { | |
92 | TParticle *p = stack->Particle(parent->GetLabel()); | |
51346b82 | 93 | if (p->GetNDaughters() > 0) |
ef9d2241 | 94 | { |
84aff7a4 | 95 | TEveTrackPropagator* rs = parent->GetPropagator(); |
51346b82 | 96 | for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d) |
97 | { | |
ef9d2241 | 98 | TParticle* dp = stack->Particle(d); |
99 | if (dp->Pt() < min_pt && dp->P() < min_p) continue; | |
100 | ||
51346b82 | 101 | TEveTrack* dtrack = new TEveTrack(dp, d, rs); |
ef9d2241 | 102 | char form[1000]; |
103 | sprintf(form,"%s [%d]", dp->GetName(), d); | |
104 | dtrack->SetName(form); | |
fc9514f5 | 105 | dtrack->SetStdTitle(); |
106 | set_track_color(dtrack, pdg_col); | |
107 | ||
84aff7a4 | 108 | gEve->AddElement(dtrack, parent); |
ef9d2241 | 109 | |
110 | if (recurse) | |
111 | kine_daughters(dtrack, stack, min_pt, min_p, pdg_col, recurse); | |
112 | } | |
113 | } | |
114 | } | |
a7867742 | 115 | |
84aff7a4 | 116 | Color_t set_track_color(TEveTrack* t, Bool_t pdg_col) |
fc9514f5 | 117 | { |
118 | if (pdg_col) | |
119 | t->SetMainColor(get_pdg_color(t->GetPdg())); | |
120 | else | |
121 | t->SetMainColor((Color_t)30); | |
122 | } | |
123 | ||
539d6798 | 124 | Color_t get_pdg_color(Int_t pdg) |
125 | { | |
fc9514f5 | 126 | // PDG color indices |
127 | static const Color_t DefCol = 30; | |
128 | static const Color_t ECol = 5; | |
129 | static const Color_t MuCol = 6; | |
51346b82 | 130 | static const Color_t GammaCol = 7; |
fc9514f5 | 131 | static const Color_t MesCol1 = 3; |
132 | static const Color_t MesCol2 = 38; | |
133 | static const Color_t BarCol = 10; | |
134 | ||
135 | Int_t pdga = TMath::Abs(pdg); | |
136 | Color_t col = DefCol; | |
a7867742 | 137 | |
138 | // elementary particles | |
139 | if (pdga < 100) { | |
140 | switch (pdga) { | |
51346b82 | 141 | case 11: |
142 | col = ECol; break; | |
a7867742 | 143 | case 12: |
144 | col = MuCol; break; | |
145 | case 22: | |
146 | col = GammaCol; break; | |
147 | } | |
148 | } | |
fc9514f5 | 149 | // mesons and barions |
150 | else if (pdga < 100000) { | |
a7867742 | 151 | Int_t i = pdga; |
152 | Int_t i0 = i%10; i /= 10; | |
51346b82 | 153 | Int_t i1 = i%10; i /= 10; |
154 | Int_t i2 = i%10; i /= 10; | |
155 | Int_t i3 = i%10; i /= 10; | |
a7867742 | 156 | Int_t i4 = i%10; |
157 | //printf("pdg(%d) quark indices (%d,%d,%d,%d,%d) \n",pdg, i4,i3,i2, i1, i0); | |
158 | // meson | |
159 | if ((i3 == 0) && ( i4 < 2)){ | |
160 | col = MesCol1; // quarks: i1,i2 (spin = i0) | |
161 | if(i1 == 3 || i2 == 3) | |
162 | col = MesCol2; | |
163 | } // barion | |
164 | else if ( i2 >= i1 && i3 >= i2 ) { | |
165 | col = BarCol; // quarks: i1,i2, i3 (spin = i0)) | |
166 | } | |
167 | } | |
fc9514f5 | 168 | |
a7867742 | 169 | return col; |
170 | } | |
c7b57c0b | 171 | |
fc9514f5 | 172 | /******************************************************************************/ |
c7b57c0b | 173 | |
84aff7a4 | 174 | TEveElement* |
b65b3044 | 175 | kine_track(Int_t label, |
fc9514f5 | 176 | Bool_t import_mother = kTRUE, Bool_t import_daughters = kTRUE, |
177 | Bool_t pdg_col = kTRUE, Bool_t recurse = kTRUE, | |
84aff7a4 | 178 | TEveElement* cont = 0) |
2caed564 | 179 | |
c7b57c0b | 180 | { |
fc9514f5 | 181 | // Create mother and daughters tracks with given label. |
182 | // mother -> particle with label | |
183 | // daughters -> daughters of label | |
184 | ||
c7b57c0b | 185 | if (label < 0) { |
186 | Warning("kine_track", "label not set."); | |
187 | return 0; | |
188 | } | |
51346b82 | 189 | |
d810d0de | 190 | AliRunLoader* rl = AliEveEventManager::AssertRunLoader(); |
c7b57c0b | 191 | rl->LoadKinematics(); |
192 | AliStack* stack = rl->Stack(); | |
f1b2cd0b | 193 | if (label >= stack->GetNtrack()) |
194 | { | |
195 | Warning("kine_track", "label out of range."); | |
196 | return 0; | |
197 | } | |
198 | ||
c7b57c0b | 199 | TParticle* p = stack->Particle(label); |
200 | ||
b65b3044 | 201 | if (import_mother || (import_daughters && p->GetNDaughters())) |
c7b57c0b | 202 | { |
84aff7a4 | 203 | TEveTrack* toptrack = 0; |
51346b82 | 204 | TEveTrackList* tracklist = 0; |
84aff7a4 | 205 | TEveTrackPropagator* rs = 0; |
2caed564 | 206 | |
b65b3044 | 207 | if (cont == 0) |
208 | { | |
84aff7a4 | 209 | TEveTrackList* tlist = new TEveTrackList |
ef9d2241 | 210 | (Form("Kinematics of %d", label, p->GetNDaughters())); |
211 | cont = tlist; | |
c7b57c0b | 212 | |
84aff7a4 | 213 | TEveTrackPropagator* rnrStyle = tlist->GetPropagator(); |
c7b57c0b | 214 | // !!! Watch the '-', apparently different sign convention then for ESD. |
215 | rnrStyle->SetMagField( - gAlice->Field()->SolenoidField() ); | |
216 | char tooltip[1000]; | |
b65b3044 | 217 | sprintf(tooltip,"Ndaughters=%d", p->GetNDaughters()); |
ef9d2241 | 218 | tlist->SetTitle(tooltip); |
fc9514f5 | 219 | rnrStyle->fMaxOrbs = 2; |
32e219c2 | 220 | rnrStyle->SetEditPathMarks(kTRUE); |
fc9514f5 | 221 | |
84aff7a4 | 222 | gEve->AddElement(cont); |
223 | rs = tlist->GetPropagator(); | |
2caed564 | 224 | } |
ef9d2241 | 225 | else |
226 | { | |
84aff7a4 | 227 | // check if container is TEveTrackList or TEveTrack (has rnr-style) |
228 | TEveTrack* t = dynamic_cast<TEveTrack*>(cont); | |
fc9514f5 | 229 | if (t) { |
84aff7a4 | 230 | rs = t->GetPropagator(); |
fc9514f5 | 231 | } else { |
84aff7a4 | 232 | TEveTrackList* l = dynamic_cast<TEveTrackList*>(cont); |
fc9514f5 | 233 | if (l) |
84aff7a4 | 234 | rs = l->GetPropagator(); |
ef9d2241 | 235 | else |
2caed564 | 236 | Error("kine_tracks.C", "TrackRenderStyle not set."); |
2caed564 | 237 | } |
c7b57c0b | 238 | } |
2caed564 | 239 | |
b65b3044 | 240 | if (import_mother) |
241 | { | |
51346b82 | 242 | TEveTrack* track = new TEveTrack(p, label, rs); |
c7b57c0b | 243 | char form[1000]; |
244 | sprintf(form,"%s [%d]", p->GetName(), label); | |
245 | track->SetName(form); | |
fc9514f5 | 246 | track->SetStdTitle(); |
247 | set_track_color(track, pdg_col); | |
2caed564 | 248 | |
fc9514f5 | 249 | track->MakeTrack(); |
84aff7a4 | 250 | gEve->AddElement(track, cont); |
fc9514f5 | 251 | cont = track; |
c7b57c0b | 252 | } |
253 | ||
51346b82 | 254 | if (import_daughters && p->GetNDaughters()) |
c7b57c0b | 255 | { |
51346b82 | 256 | for (int d=p->GetFirstDaughter(); d>0 && d<=p->GetLastDaughter(); ++d) |
257 | { | |
c7b57c0b | 258 | TParticle* dp = stack->Particle(d); |
51346b82 | 259 | TEveTrack* track = new TEveTrack(dp, d, rs); |
c7b57c0b | 260 | char form[1000]; |
261 | sprintf(form,"%s [%d]", dp->GetName(), d); | |
262 | track->SetName(form); | |
fc9514f5 | 263 | track->SetStdTitle(); |
264 | set_track_color(track, pdg_col); | |
265 | ||
2caed564 | 266 | track->MakeTrack(); |
84aff7a4 | 267 | gEve->AddElement(track, cont); |
fc9514f5 | 268 | |
269 | if (recurse) | |
270 | kine_daughters(track, stack, 0, 0, pdg_col, recurse); | |
c7b57c0b | 271 | } |
272 | } | |
273 | } | |
274 | ||
2caed564 | 275 | cont->UpdateItems(); |
84aff7a4 | 276 | gEve->Redraw3D(); |
c7b57c0b | 277 | return cont; |
278 | } | |
2caed564 | 279 |