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d15a28e7 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | //_________________________________________________________________________ | |
17 | // class of PHOS Sub Track | |
18 | //*-- Author : Dmitri Peressounko RRC KI | |
19 | ////////////////////////////////////////////////////////////////////////////// | |
20 | ||
21 | // --- ROOT system --- | |
22 | ||
23 | #include "TVector3.h" | |
9f616d61 | 24 | #include "TPad.h" |
d15a28e7 | 25 | |
26 | // --- Standard library --- | |
27 | ||
9f616d61 | 28 | #include <iostream> |
d15a28e7 | 29 | |
30 | // --- AliRoot header files --- | |
31 | ||
32 | #include "AliPHOSTrackSegment.h" | |
33 | #include "AliPHOSv0.h" | |
34 | ||
35 | ClassImp(AliPHOSTrackSegment) | |
36 | ||
37 | //____________________________________________________________________________ | |
38 | AliPHOSTrackSegment::AliPHOSTrackSegment( AliPHOSEmcRecPoint * emc , AliPHOSPpsdRecPoint * ppsdRP1, | |
39 | AliPHOSPpsdRecPoint * ppsdRP2 ) | |
40 | { | |
41 | if( emc ) | |
42 | fEmcRecPoint = emc ; | |
43 | ||
44 | if( ppsdRP1 ) | |
45 | fPpsdUp = ppsdRP1 ; | |
46 | ||
47 | if( ppsdRP2 ) | |
48 | fPpsdLow = ppsdRP2 ; | |
49 | ||
d15a28e7 | 50 | } |
51 | ||
6ad0bfa0 | 52 | //____________________________________________________________________________ |
53 | AliPHOSTrackSegment::AliPHOSTrackSegment( const AliPHOSTrackSegment & ts) | |
54 | { | |
c198e326 | 55 | ( (AliPHOSTrackSegment &)ts ).Copy(*this) ; |
6ad0bfa0 | 56 | } |
57 | ||
d15a28e7 | 58 | //____________________________________________________________________________ |
59 | AliPHOSTrackSegment::~AliPHOSTrackSegment() // dtor | |
60 | { | |
61 | // fEmcRecPoint.Delete() ; Not Owners !!! | |
62 | // fPpsdUp.Delete() ; | |
63 | // fPpsdLow.Delete() ; | |
64 | } | |
65 | ||
6ad0bfa0 | 66 | //____________________________________________________________________________ |
67 | void AliPHOSTrackSegment::Copy(TObject & obj) | |
68 | { | |
69 | TObject::Copy(obj) ; | |
70 | ( (AliPHOSTrackSegment &)obj ).fEmcRecPoint = fEmcRecPoint ; | |
71 | ( (AliPHOSTrackSegment &)obj ).fPpsdLow = fPpsdLow ; | |
72 | ( (AliPHOSTrackSegment &)obj ).fPpsdUp = fPpsdUp ; | |
73 | } | |
9f616d61 | 74 | //____________________________________________________________________________ |
75 | Int_t AliPHOSTrackSegment::DistancetoPrimitive(Int_t px, Int_t py) | |
76 | { | |
6ad0bfa0 | 77 | //Compute distance from point px,py to a AliPHOSTrackSegment considered as a Tmarker |
78 | // Compute the closest distance of approach from point px,py to this marker. | |
79 | // The distance is computed in pixels units. | |
80 | // | |
81 | Int_t div = 1 ; | |
82 | TVector3 pos(0.,0.,0.) ; | |
83 | ||
84 | fEmcRecPoint->GetLocalPosition( pos) ; | |
85 | Float_t x = pos.X() ; | |
86 | Float_t y = pos.Z() ; | |
87 | if ( fPpsdLow ) { | |
88 | fPpsdLow->GetLocalPosition( pos ) ; | |
89 | x += pos.X() ; | |
90 | y += pos.Z() ; | |
91 | div++ ; | |
92 | } | |
93 | if ( fPpsdUp ) { | |
94 | fPpsdUp->GetLocalPosition( pos ) ; | |
95 | x += pos.X() ; | |
96 | y += pos.Z() ; | |
97 | div++ ; | |
98 | } | |
99 | x /= div ; | |
100 | y /= div ; | |
101 | ||
9f616d61 | 102 | const Int_t kMaxDiff = 10; |
103 | Int_t pxm = gPad->XtoAbsPixel(x); | |
104 | Int_t pym = gPad->YtoAbsPixel(y); | |
105 | Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym); | |
106 | ||
107 | if (dist > kMaxDiff) return 9999; | |
108 | return dist; | |
109 | } | |
110 | ||
111 | //___________________________________________________________________________ | |
112 | void AliPHOSTrackSegment::Draw(Option_t *option) | |
113 | { | |
6ad0bfa0 | 114 | // Draw this AliPHOSTrackSegment with its current attribute |
115 | ||
116 | AppendPad(option); | |
9f616d61 | 117 | } |
118 | ||
119 | //______________________________________________________________________________ | |
120 | void AliPHOSTrackSegment::ExecuteEvent(Int_t event, Int_t px, Int_t py) | |
121 | { | |
6ad0bfa0 | 122 | // Execute action corresponding to one event |
123 | // This member function is called when a AliPHOSTrackSegment is clicked with the locator | |
124 | // | |
125 | // If Left button is clicked on AliPHOSRecPoint, the digits are switched on | |
126 | // and switched off when the mouse button is released. | |
127 | // | |
92862013 | 128 | static TPaveText* textTS = 0 ; |
9f616d61 | 129 | |
6ad0bfa0 | 130 | if (!gPad->IsEditable()) |
131 | return; | |
9f616d61 | 132 | |
133 | switch (event) { | |
134 | ||
135 | case kButton1Down:{ | |
136 | ||
92862013 | 137 | if (!textTS) { |
9f616d61 | 138 | |
139 | TVector3 pos(0.,0.,0.) ; | |
140 | fEmcRecPoint->GetLocalPosition(pos) ; | |
92862013 | 141 | textTS = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+5,pos.Z()+15,"") ; |
9f616d61 | 142 | Text_t line1[40] ; |
09fc14a0 | 143 | sprintf(line1,"See RecParticle for ID") ; |
92862013 | 144 | textTS ->AddText(line1) ; |
145 | textTS ->Draw(""); | |
6ad0bfa0 | 146 | gPad->Update() ; |
9f616d61 | 147 | } |
148 | } | |
149 | ||
150 | break; | |
151 | ||
152 | case kButton1Up: | |
92862013 | 153 | if (textTS) { |
154 | delete textTS ; | |
155 | textTS = 0 ; | |
9f616d61 | 156 | } |
157 | break; | |
158 | } | |
159 | } | |
160 | ||
161 | ||
d15a28e7 | 162 | //____________________________________________________________________________ |
163 | Float_t AliPHOSTrackSegment::GetDistanceInPHOSPlane() | |
164 | { | |
165 | ||
166 | TVector3 vecEmc ; | |
167 | fEmcRecPoint->GetLocalPosition(vecEmc) ; | |
168 | ||
169 | TVector3 vecPpsd ; | |
170 | if( fPpsdLow->GetMultiplicity() ) | |
171 | fPpsdLow->GetLocalPosition(vecPpsd) ; | |
172 | else { | |
173 | vecPpsd.SetX(10000.) ; | |
174 | } | |
175 | vecEmc -= vecPpsd ; | |
176 | ||
92862013 | 177 | Float_t r = vecEmc.Mag();; |
d15a28e7 | 178 | |
92862013 | 179 | return r ; |
d15a28e7 | 180 | } |
181 | ||
182 | //____________________________________________________________________________ | |
6ad0bfa0 | 183 | TVector3 AliPHOSTrackSegment::GetMomentumDirection() |
d15a28e7 | 184 | { |
6ad0bfa0 | 185 | TVector3 dir, tempo ; |
186 | TMatrix mdummy ; | |
d15a28e7 | 187 | |
6ad0bfa0 | 188 | TVector3 posEmc ; |
189 | fEmcRecPoint->GetGlobalPosition(posEmc, mdummy) ; | |
190 | ||
98569bc2 | 191 | // need to correct here for the depth of the shower start point (TDR p 127) ? |
192 | ||
193 | Float_t energy = fEmcRecPoint->GetEnergy() ; | |
194 | Float_t para = 0.925 ; | |
195 | Float_t parb = 6.52 ; | |
196 | ||
197 | TVector3 localpos ; | |
198 | fEmcRecPoint->GetLocalPosition(localpos) ; | |
199 | ||
200 | AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance() ; | |
201 | Float_t radius = geom->GetIPtoOuterCoverDistance() + geom->GetOuterBoxSize(1) ; | |
202 | Float_t incidencephi = TMath::ATan(localpos.X() / radius) ; | |
203 | Float_t incidencetheta = TMath::ATan(localpos.Z() / radius) ; | |
204 | ||
205 | Float_t depthx = - ( para * TMath::Log(energy) + parb ) * TMath::Sin(incidencephi) ; | |
206 | Float_t depthz = - ( para * TMath::Log(energy) + parb ) * TMath::Sin(incidencetheta) ; | |
207 | ||
6ad0bfa0 | 208 | TVector3 posPpsdl ; |
209 | TVector3 posPpsdup ; | |
d15a28e7 | 210 | |
6ad0bfa0 | 211 | // if( fPpsdLow ){ |
212 | // fPpsdLow->GetGlobalPosition(posPpsdl, mdummy) ; | |
213 | // if( !fPpsdUp ) { // draw line trough 2 points | |
214 | // tempo = posEmc - posPpsdl; | |
215 | // } | |
216 | ||
217 | // else { // draw line through 3 points | |
218 | // fPpsdUp->GetGlobalPosition(posPpsdup, mdummy) ; | |
219 | // posPpsdl = 0.5 * ( posPpsdup + posPpsdl ) ; | |
220 | // dir = posEmc - posPpsdl ; | |
221 | // } | |
222 | // } | |
223 | // else | |
224 | tempo = posEmc ; | |
225 | ||
98569bc2 | 226 | dir.SetX( tempo.X() + depthx ) ; // assumes that a neutral comes from the vertex |
6ad0bfa0 | 227 | dir.SetY( tempo.Y() ) ; |
98569bc2 | 228 | dir.SetZ( -tempo.Z() - depthz ) ; |
6ad0bfa0 | 229 | |
230 | dir.SetMag(1.) ; | |
231 | return dir ; | |
d15a28e7 | 232 | } |
233 | ||
d15a28e7 | 234 | |
235 | //____________________________________________________________________________ | |
236 | void AliPHOSTrackSegment::GetPosition( TVector3 & pos ) | |
237 | { | |
238 | // Returns positions of hits | |
92862013 | 239 | TMatrix dummy ; |
240 | fEmcRecPoint->GetGlobalPosition(pos, dummy) ; | |
d15a28e7 | 241 | } |
242 | ||
9f616d61 | 243 | //______________________________________________________________________________ |
244 | void AliPHOSTrackSegment::Paint(Option_t *) | |
245 | { | |
6ad0bfa0 | 246 | //Paint this ALiPHOSTrackSegment as a TMarker with its current attributes |
247 | ||
248 | TVector3 posemc(999., 999., 999.) ; | |
249 | TVector3 posppsdl(999., 999., 999.) ; | |
250 | TVector3 posppsdu(999., 999., 999.) ; | |
251 | ||
252 | fEmcRecPoint->GetLocalPosition(posemc) ; | |
253 | if (fPpsdLow !=0 ) | |
254 | fPpsdLow->GetLocalPosition(posppsdl) ; | |
255 | if (fPpsdUp !=0 ) | |
256 | fPpsdUp->GetLocalPosition(posppsdu) ; | |
257 | ||
258 | Coord_t xemc = posemc.X() ; | |
259 | Coord_t yemc = posemc.Z() ; | |
9f616d61 | 260 | |
6ad0bfa0 | 261 | Coord_t yppsdl = posppsdl.Z() ; |
262 | Coord_t xppsdl = posppsdl.X() ; | |
263 | ||
264 | Coord_t yppsdu = posppsdu.Z() ; | |
265 | Coord_t xppsdu = posppsdu.X() ; | |
266 | ||
92862013 | 267 | Color_t markercolor = 1 ; |
268 | Size_t markersize = 1.5 ; | |
269 | Style_t markerstyle = 20 ; | |
9f616d61 | 270 | |
271 | if (!gPad->IsBatch()) { | |
92862013 | 272 | gVirtualX->SetMarkerColor(markercolor) ; |
273 | gVirtualX->SetMarkerSize (markersize) ; | |
274 | gVirtualX->SetMarkerStyle(markerstyle) ; | |
9f616d61 | 275 | } |
92862013 | 276 | gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ; |
6ad0bfa0 | 277 | gPad->PaintPolyMarker(1, &xemc, &yemc, "") ; |
278 | ||
279 | if (xppsdl != 999. && yppsdl != 999. ) { | |
280 | ||
92862013 | 281 | markercolor = 2 ; |
282 | markersize = 1.25 ; | |
283 | markerstyle = 21 ; | |
6ad0bfa0 | 284 | |
285 | if (!gPad->IsBatch()) { | |
92862013 | 286 | gVirtualX->SetMarkerColor(markercolor) ; |
287 | gVirtualX->SetMarkerSize (markersize) ; | |
288 | gVirtualX->SetMarkerStyle(markerstyle) ; | |
6ad0bfa0 | 289 | } |
92862013 | 290 | gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ; |
6ad0bfa0 | 291 | gPad->PaintPolyMarker(1, &xppsdl, &yppsdl, "") ; |
292 | } | |
293 | ||
294 | if (xppsdu != 999. && yppsdu != 999. ) { | |
295 | ||
92862013 | 296 | markercolor = 3 ; |
297 | markersize = 1. ; | |
298 | markerstyle = 22 ; | |
6ad0bfa0 | 299 | |
300 | if (!gPad->IsBatch()) { | |
92862013 | 301 | gVirtualX->SetMarkerColor(markercolor) ; |
302 | gVirtualX->SetMarkerSize (markersize) ; | |
303 | gVirtualX->SetMarkerStyle(markerstyle) ; | |
6ad0bfa0 | 304 | } |
92862013 | 305 | gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ; |
6ad0bfa0 | 306 | gPad->PaintPolyMarker(1, &xppsdu, &yppsdu, "") ; |
307 | } | |
9f616d61 | 308 | } |
309 | ||
310 | ||
d15a28e7 | 311 | //____________________________________________________________________________ |
312 | void AliPHOSTrackSegment::Print() | |
313 | { | |
314 | cout << "--------AliPHOSTrackSegment-------- "<<endl ; | |
315 | cout << "EMC Reconstructed Point: " << fEmcRecPoint << endl; | |
316 | ||
317 | TVector3 pos ; | |
92862013 | 318 | TMatrix dummy ; |
d15a28e7 | 319 | |
92862013 | 320 | fEmcRecPoint->GetGlobalPosition( pos, dummy ) ; |
d15a28e7 | 321 | |
322 | cout << " position " << pos.X() << " " << pos.Y() << " " << pos.Z() << " Energy " << fEmcRecPoint->GetTotalEnergy() << endl ; | |
323 | cout << "PPSD Low Reconstructed Point: " << endl; | |
324 | ||
325 | if(fPpsdLow){ | |
92862013 | 326 | fPpsdLow->GetGlobalPosition( pos , dummy ) ; |
d15a28e7 | 327 | cout << " position " << pos.X() << " " << pos.Y() << " " << pos.Z() << endl ; |
328 | } | |
329 | ||
330 | cout << "PPSD Up Reconstructed Point: " << endl; | |
331 | ||
332 | if(fPpsdUp ){ | |
92862013 | 333 | fPpsdUp->GetGlobalPosition( pos, dummy ) ; |
d15a28e7 | 334 | cout << " position " << pos.X() << " " << pos.Y() << " " << pos.Z() << endl ; |
335 | } | |
336 | ||
337 | } | |
338 |