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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 | /* $Id$ */ | |
16 | //_________________________________________________________________________ | |
17 | // Base Class for PHOS Reconstructed Points | |
18 | // Why should I put meaningless comments | |
19 | // just to satisfy | |
20 | // the code checker | |
21 | //*-- Author: Gines Martinez (SUBATECH) | |
22 | ||
23 | // --- ROOT system --- | |
24 | #include "TPad.h" | |
25 | #include "TClonesArray.h" | |
26 | ||
27 | // --- Standard library --- | |
28 | ||
29 | // --- AliRoot header files --- | |
30 | ||
31 | #include "AliPHOSGeometry.h" | |
32 | #include "AliPHOSDigit.h" | |
33 | #include "AliPHOSRecPoint.h" | |
34 | #include "AliPHOSGetter.h" | |
35 | ||
36 | ClassImp(AliPHOSRecPoint) | |
37 | ||
38 | ||
39 | //____________________________________________________________________________ | |
40 | AliPHOSRecPoint::AliPHOSRecPoint() | |
41 | : AliRecPoint() | |
42 | { | |
43 | // ctor | |
44 | ||
45 | fMaxTrack = 200 ; | |
46 | fPHOSMod = 0; | |
47 | ||
48 | } | |
49 | ||
50 | //____________________________________________________________________________ | |
51 | AliPHOSRecPoint::AliPHOSRecPoint(const char * opt) : AliRecPoint(opt) | |
52 | { | |
53 | // ctor | |
54 | ||
55 | fMaxTrack = 200 ; | |
56 | fPHOSMod = 0; | |
57 | ||
58 | } | |
59 | ||
60 | //____________________________________________________________________________ | |
61 | Int_t AliPHOSRecPoint::DistancetoPrimitive(Int_t px, Int_t py) | |
62 | { | |
63 | // Compute distance from point px,py to a AliPHOSRecPoint considered as a Tmarker | |
64 | // Compute the closest distance of approach from point px,py to this marker. | |
65 | // The distance is computed in pixels units. | |
66 | ||
67 | TVector3 pos(0.,0.,0.) ; | |
68 | GetLocalPosition( pos) ; | |
69 | Float_t x = pos.X() ; | |
70 | Float_t y = pos.Z() ; | |
71 | const Int_t kMaxDiff = 10; | |
72 | Int_t pxm = gPad->XtoAbsPixel(x); | |
73 | Int_t pym = gPad->YtoAbsPixel(y); | |
74 | Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym); | |
75 | ||
76 | if (dist > kMaxDiff) return 9999; | |
77 | return dist; | |
78 | } | |
79 | ||
80 | //___________________________________________________________________________ | |
81 | void AliPHOSRecPoint::Draw(Option_t *option) | |
82 | { | |
83 | // Draw this AliPHOSRecPoint with its current attributes | |
84 | ||
85 | AppendPad(option); | |
86 | } | |
87 | ||
88 | //______________________________________________________________________________ | |
89 | void AliPHOSRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py) const | |
90 | { | |
91 | // Execute action corresponding to one event | |
92 | // This member function is called when a AliPHOSRecPoint is clicked with the locator | |
93 | // | |
94 | // If Left button is clicked on AliPHOSRecPoint, the digits are switched on | |
95 | // and switched off when the mouse button is released. | |
96 | ||
97 | // static Int_t pxold, pyold; | |
98 | ||
99 | static TGraph * digitgraph = 0 ; | |
100 | static TPaveText* clustertext = 0 ; | |
101 | ||
102 | if (!gPad->IsEditable()) return; | |
103 | ||
104 | switch (event) { | |
105 | ||
106 | ||
107 | case kButton1Down:{ | |
108 | AliPHOSDigit * digit ; | |
109 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
110 | AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry()); | |
111 | ||
112 | Int_t iDigit; | |
113 | Int_t relid[4] ; | |
114 | ||
115 | const Int_t kMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ; | |
116 | Float_t * xi = new Float_t [kMulDigit] ; | |
117 | Float_t * zi = new Float_t [kMulDigit] ; | |
118 | ||
119 | for(iDigit = 0; iDigit < kMulDigit; iDigit++) { | |
120 | Fatal("AliPHOSRecPoint::ExecuteEvent", "-> Something wrong with the code"); | |
121 | digit = 0 ; //dynamic_cast<AliPHOSDigit *>((fDigitsList)[iDigit]); | |
122 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
123 | phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]) ; | |
124 | } | |
125 | ||
126 | if (!digitgraph) { | |
127 | digitgraph = new TGraph(fMulDigit,xi,zi); | |
128 | digitgraph-> SetMarkerStyle(5) ; | |
129 | digitgraph-> SetMarkerSize(1.) ; | |
130 | digitgraph-> SetMarkerColor(1) ; | |
131 | digitgraph-> Draw("P") ; | |
132 | } | |
133 | if (!clustertext) { | |
134 | ||
135 | TVector3 pos(0.,0.,0.) ; | |
136 | GetLocalPosition(pos) ; | |
137 | clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ; | |
138 | Text_t line1[40] ; | |
139 | Text_t line2[40] ; | |
140 | sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ; | |
141 | sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ; | |
142 | clustertext ->AddText(line1) ; | |
143 | clustertext ->AddText(line2) ; | |
144 | clustertext ->Draw(""); | |
145 | } | |
146 | gPad->Update() ; | |
147 | Print() ; | |
148 | delete[] xi ; | |
149 | delete[] zi ; | |
150 | } | |
151 | ||
152 | break; | |
153 | ||
154 | case kButton1Up: | |
155 | if (digitgraph) { | |
156 | delete digitgraph ; | |
157 | digitgraph = 0 ; | |
158 | } | |
159 | if (clustertext) { | |
160 | delete clustertext ; | |
161 | clustertext = 0 ; | |
162 | } | |
163 | ||
164 | break; | |
165 | ||
166 | } | |
167 | } | |
168 | //____________________________________________________________________________ | |
169 | void AliPHOSRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits) { | |
170 | //evaluates (if necessary) all RecPoint data members | |
171 | ||
172 | EvalPrimaries(digits) ; | |
173 | } | |
174 | //____________________________________________________________________________ | |
175 | void AliPHOSRecPoint::EvalPHOSMod(AliPHOSDigit * digit) | |
176 | { | |
177 | // Returns the PHOS module in which the RecPoint is found | |
178 | ||
179 | if( fPHOSMod == 0){ | |
180 | Int_t relid[4] ; | |
181 | ||
182 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
183 | AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry()); | |
184 | ||
185 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
186 | fPHOSMod = relid[0]; | |
187 | } | |
188 | } | |
189 | ||
190 | //______________________________________________________________________________ | |
191 | void AliPHOSRecPoint::EvalPrimaries(TClonesArray * digits) | |
192 | { | |
193 | // Constructs the list of primary particles (tracks) which have contributed to this RecPoint | |
194 | // First in the list - primary, made strongest contribution to the center | |
195 | ||
196 | ||
197 | AliPHOSDigit * digit ; | |
198 | Int_t * tempo = new Int_t[fMaxTrack] ; | |
199 | ||
200 | //Find digit in center | |
201 | AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance("IHEP","") ; | |
202 | if(!geom){ | |
203 | Error("EvalPrimaries","Can not instantiate PHOS geometry") ; | |
204 | return ; | |
205 | } | |
206 | TVector3 pos ; | |
207 | TMatrix mat ; | |
208 | GetGlobalPosition(pos,mat) ; | |
209 | Int_t module ; | |
210 | Double_t x,z ; | |
211 | geom->ImpactOnEmc(pos.Theta(),pos.Phi(),module,z,x); | |
212 | Int_t absId ; | |
213 | geom->RelPosToAbsId(module,x,z,absId) ; | |
214 | //copy primaries | |
215 | Int_t index ; | |
216 | for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits | |
217 | digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ; | |
218 | if(digit->GetId() == absId){ | |
219 | fMulTrack = digit->GetNprimary() ; | |
220 | for(Int_t ii = 0 ; ii < fMulTrack ; ii++) | |
221 | tempo[ii] = digit->GetPrimary(ii+1) ; | |
222 | } | |
223 | } | |
224 | ||
225 | for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits | |
226 | digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ; | |
227 | if(digit->GetId()!=absId){ //already done | |
228 | Int_t nprimaries = digit->GetNprimary() ; | |
229 | if(nprimaries){ | |
230 | Int_t * newprimaryarray = new Int_t[nprimaries] ; | |
231 | Int_t ii ; | |
232 | for ( ii = 0 ; ii < nprimaries ; ii++) | |
233 | newprimaryarray[ii] = digit->GetPrimary(ii+1) ; | |
234 | ||
235 | Int_t jndex ; | |
236 | for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit | |
237 | if ( fMulTrack > fMaxTrack ) { | |
238 | fMulTrack = - 1 ; | |
239 | Error("EvalPrimaries", "GetNprimaries ERROR > increase fMaxTrack" ) ; | |
240 | break ; | |
241 | } | |
242 | Int_t newprimary = newprimaryarray[jndex] ; | |
243 | Int_t kndex ; | |
244 | Bool_t already = kFALSE ; | |
245 | for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored | |
246 | if ( newprimary == tempo[kndex] ){ | |
247 | already = kTRUE ; | |
248 | break ; | |
249 | } | |
250 | } // end of check | |
251 | if ( !already) { // store it | |
252 | tempo[fMulTrack] = newprimary ; | |
253 | fMulTrack++ ; | |
254 | } // store it | |
255 | } // all primaries in digit | |
256 | delete [] newprimaryarray ; | |
257 | } | |
258 | } | |
259 | } // all digits | |
260 | ||
261 | if(fMulTrack) | |
262 | fTracksList = new Int_t[fMulTrack] ; | |
263 | for(index = 0; index < fMulTrack; index++) | |
264 | fTracksList[index] = tempo[index] ; | |
265 | ||
266 | delete [] tempo ; | |
267 | ||
268 | } | |
269 | //____________________________________________________________________________ | |
270 | void AliPHOSRecPoint::GetGlobalPosition(TVector3 & gpos, TMatrix & gmat) const | |
271 | { | |
272 | // returns the position of the cluster in the global reference system of ALICE | |
273 | // and the uncertainty on this position | |
274 | ||
275 | ||
276 | AliPHOSGetter::GetInstance()->PHOSGeometry()->GetGlobal(this, gpos, gmat) ; | |
277 | ||
278 | } | |
279 | ||
280 | ||
281 | //______________________________________________________________________________ | |
282 | void AliPHOSRecPoint::Paint(Option_t *) | |
283 | { | |
284 | // Paint this ALiRecPoint as a TMarker with its current attributes | |
285 | ||
286 | TVector3 pos(0.,0.,0.) ; | |
287 | GetLocalPosition(pos) ; | |
288 | Coord_t x = pos.X() ; | |
289 | Coord_t y = pos.Z() ; | |
290 | Color_t markercolor = 1 ; | |
291 | Size_t markersize = 1. ; | |
292 | Style_t markerstyle = 5 ; | |
293 | ||
294 | if (!gPad->IsBatch()) { | |
295 | gVirtualX->SetMarkerColor(markercolor) ; | |
296 | gVirtualX->SetMarkerSize (markersize) ; | |
297 | gVirtualX->SetMarkerStyle(markerstyle) ; | |
298 | } | |
299 | gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ; | |
300 | gPad->PaintPolyMarker(1,&x,&y,"") ; | |
301 | } |