1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //_________________________________________________________________________
17 // Base Class for EMCAL Reconstructed Points
18 // Why should I put meaningless comments
21 //*-- Author: Gines Martinez (SUBATECH)
23 // --- ROOT system ---
25 #include "TClonesArray.h"
27 // --- Standard library ---
29 // --- AliRoot header files ---
31 #include "AliEMCALGeometry.h"
32 #include "AliEMCALDigit.h"
33 #include "AliEMCALRecPoint.h"
34 #include "AliEMCALGetter.h"
36 ClassImp(AliEMCALRecPoint)
39 //____________________________________________________________________________
40 AliEMCALRecPoint::AliEMCALRecPoint()
48 fPRESection = fECASection = fHCASection = kFALSE ;
51 //____________________________________________________________________________
52 AliEMCALRecPoint::AliEMCALRecPoint(const char * opt) : AliRecPoint(opt)
62 //____________________________________________________________________________
63 Int_t AliEMCALRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
65 // Compute distance from point px,py to a AliEMCALRecPoint considered as a Tmarker
66 // Compute the closest distance of approach from point px,py to this marker.
67 // The distance is computed in pixels units.
69 TVector3 pos(0.,0.,0.) ;
70 GetLocalPosition( pos) ;
73 const Int_t kMaxDiff = 10;
74 Int_t pxm = gPad->XtoAbsPixel(x);
75 Int_t pym = gPad->YtoAbsPixel(y);
76 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
78 if (dist > kMaxDiff) return 9999;
82 //___________________________________________________________________________
83 void AliEMCALRecPoint::Draw(Option_t *option)
85 // Draw this AliEMCALRecPoint with its current attributes
90 //______________________________________________________________________________
91 void AliEMCALRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py)
93 // Execute action corresponding to one event
94 // This member function is called when a AliEMCALRecPoint is clicked with the locator
96 // If Left button is clicked on AliEMCALRecPoint, the digits are switched on
97 // and switched off when the mouse button is released.
99 // static Int_t pxold, pyold;
101 static TGraph * digitgraph = 0 ;
102 static TPaveText* clustertext = 0 ;
104 if (!gPad->IsEditable()) return;
110 AliEMCALDigit * digit ;
111 AliEMCALGeometry * emcalgeom = (AliEMCALGetter::Instance())->EMCALGeometry() ;
116 const Int_t kMulDigit=AliEMCALRecPoint::GetDigitsMultiplicity() ;
117 Float_t * xi = new Float_t [kMulDigit] ;
118 Float_t * zi = new Float_t [kMulDigit] ;
120 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
121 Fatal("AliEMCALRecPoint::ExecuteEvent", " -> Something wrong with the code");
122 digit = 0 ; //dynamic_cast<AliEMCALDigit *>((fDigitsList)[iDigit]);
123 emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ;
124 emcalgeom->PosInAlice(relid, xi[iDigit], zi[iDigit]) ;
128 digitgraph = new TGraph(fMulDigit,xi,zi);
129 digitgraph-> SetMarkerStyle(5) ;
130 digitgraph-> SetMarkerSize(1.) ;
131 digitgraph-> SetMarkerColor(1) ;
132 digitgraph-> Draw("P") ;
136 TVector3 pos(0.,0.,0.) ;
137 GetLocalPosition(pos) ;
138 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
141 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
142 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
143 clustertext ->AddText(line1) ;
144 clustertext ->AddText(line2) ;
145 clustertext ->Draw("");
169 //____________________________________________________________________________
170 void AliEMCALRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits)
172 //evaluates (if necessary) all RecPoint data members
174 EvalPrimaries(digits) ;
177 //____________________________________________________________________________
178 void AliEMCALRecPoint::EvalEMCALArm(AliEMCALDigit * digit)
180 // Returns the EMCAL module in which the RecPoint is found
186 AliEMCALGeometry * emcalgeom = (AliEMCALGetter::Instance())->EMCALGeometry();
188 emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ;
189 fEMCALArm = relid[0];
193 //______________________________________________________________________________
194 void AliEMCALRecPoint::EvalPrimaries(TClonesArray * digits)
196 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
198 AliEMCALDigit * digit ;
199 Int_t * tempo = new Int_t[fMaxTrack] ;
202 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
203 digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ;
204 Int_t nprimaries = digit->GetNprimary() ;
205 Int_t * newprimaryarray = new Int_t[nprimaries] ;
207 for ( ii = 0 ; ii < nprimaries ; ii++)
208 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
211 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
212 if ( fMulTrack > fMaxTrack ) {
214 Error("GetNprimaries", "increase fMaxTrack ") ;
217 Int_t newprimary = newprimaryarray[jndex] ;
219 Bool_t already = kFALSE ;
220 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
221 if ( newprimary == tempo[kndex] ){
226 if ( !already) { // store it
227 tempo[fMulTrack] = newprimary ;
230 } // all primaries in digit
231 delete newprimaryarray ;
235 fTracksList = new Int_t[fMulTrack] ;
236 for(index = 0; index < fMulTrack; index++)
237 fTracksList[index] = tempo[index] ;
243 //____________________________________________________________________________
244 void AliEMCALRecPoint::GetGlobalPosition(TVector3 & gpos) const
246 // returns the position of the cluster in the global reference system of ALICE
248 AliEMCALGeometry * emcalgeom = AliEMCALGetter::Instance()->EMCALGeometry();
251 gpos.SetY(emcalgeom->GetIP2ECASection()) ;
252 else if ( IsInPRE() )
253 gpos.SetY(emcalgeom->GetIP2PRESection()) ;
254 else if ( IsInHCA() )
255 gpos.SetY(emcalgeom->GetIP2HCASection()) ;
257 Fatal("GetGlobalPosition", "Unexpected tower section") ;
261 //____________________________________________________________________________
262 void AliEMCALRecPoint::GetLocalPosition(TVector3 & lpos) const
264 // returns the position of the cluster in the global reference system of ALICE
266 lpos.SetX(fLocPos.X()) ;
267 lpos.SetY(fLocPos.Y()) ;
268 lpos.SetZ(fLocPos.Z()) ;
271 //______________________________________________________________________________
272 void AliEMCALRecPoint::Paint(Option_t *)
274 // Paint this ALiRecPoint as a TMarker with its current attributes
276 TVector3 pos(0.,0.,0.) ;
277 GetLocalPosition(pos) ;
278 Coord_t x = pos.X() ;
279 Coord_t y = pos.Z() ;
280 Color_t markercolor = 1 ;
281 Size_t markersize = 1. ;
282 Style_t markerstyle = 5 ;
284 if (!gPad->IsBatch()) {
285 gVirtualX->SetMarkerColor(markercolor) ;
286 gVirtualX->SetMarkerSize (markersize) ;
287 gVirtualX->SetMarkerStyle(markerstyle) ;
289 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
290 gPad->PaintPolyMarker(1,&x,&y,"") ;