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 PHOS Reconstructed Points
18 // Why should I put meaningless comments
21 //*-- Author: Gines Martinez (SUBATECH)
23 // --- ROOT system ---
25 #include "TClonesArray.h"
27 // --- Standard library ---
31 // --- AliRoot header files ---
33 #include "AliPHOSGeometry.h"
34 #include "AliPHOSDigit.h"
35 #include "AliPHOSRecPoint.h"
37 ClassImp(AliPHOSRecPoint)
40 //____________________________________________________________________________
41 AliPHOSRecPoint::AliPHOSRecPoint()
46 fGeom = (AliPHOSGeometry*) AliPHOSGeometry::GetInstance() ;
51 //____________________________________________________________________________
52 Int_t AliPHOSRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
54 // Compute distance from point px,py to a AliPHOSRecPoint considered as a Tmarker
55 // Compute the closest distance of approach from point px,py to this marker.
56 // The distance is computed in pixels units.
58 TVector3 pos(0.,0.,0.) ;
59 GetLocalPosition( pos) ;
62 const Int_t kMaxDiff = 10;
63 Int_t pxm = gPad->XtoAbsPixel(x);
64 Int_t pym = gPad->YtoAbsPixel(y);
65 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
67 if (dist > kMaxDiff) return 9999;
71 //___________________________________________________________________________
72 void AliPHOSRecPoint::Draw(Option_t *option)
74 // Draw this AliPHOSRecPoint with its current attributes
79 //______________________________________________________________________________
80 void AliPHOSRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py)
82 // Execute action corresponding to one event
83 // This member function is called when a AliPHOSRecPoint is clicked with the locator
85 // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
86 // and switched off when the mouse button is released.
88 // static Int_t pxold, pyold;
90 static TGraph * digitgraph = 0 ;
91 static TPaveText* clustertext = 0 ;
93 if (!gPad->IsEditable()) return;
99 AliPHOSDigit * digit ;
100 AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
104 const Int_t kMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ;
105 Float_t * xi = new Float_t [kMulDigit] ;
106 Float_t * zi = new Float_t [kMulDigit] ;
108 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
109 digit = (AliPHOSDigit *) fDigitsList[iDigit];
110 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
111 phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]) ;
115 digitgraph = new TGraph(fMulDigit,xi,zi);
116 digitgraph-> SetMarkerStyle(5) ;
117 digitgraph-> SetMarkerSize(1.) ;
118 digitgraph-> SetMarkerColor(1) ;
119 digitgraph-> Draw("P") ;
123 TVector3 pos(0.,0.,0.) ;
124 GetLocalPosition(pos) ;
125 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
128 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
129 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
130 clustertext ->AddText(line1) ;
131 clustertext ->AddText(line2) ;
132 clustertext ->Draw("");
156 //____________________________________________________________________________
157 void AliPHOSRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits) {
158 //evaluates (if necessary) all RecPoint data members
160 EvalPrimaries(digits) ;
162 //____________________________________________________________________________
163 void AliPHOSRecPoint::EvalPHOSMod(AliPHOSDigit * digit)
165 // Returns the PHOS module in which the RecPoint is found
170 AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
172 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
177 //______________________________________________________________________________
178 void AliPHOSRecPoint::EvalPrimaries(TClonesArray * digits)
180 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
182 AliPHOSDigit * digit ;
183 Int_t * tempo = new Int_t[fMaxTrack] ;
186 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
187 digit = (AliPHOSDigit *) digits->At( fDigitsList[index] ) ;
188 Int_t nprimaries = digit->GetNprimary() ;
189 Int_t * newprimaryarray = new Int_t[nprimaries] ;
191 for ( ii = 0 ; ii < nprimaries ; ii++)
192 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
195 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
196 if ( fMulTrack > fMaxTrack ) {
198 cout << "AliPHOSRecPoint::GetNprimaries ERROR > increase fMaxTrack " << endl ;
201 Int_t newprimary = newprimaryarray[jndex] ;
203 Bool_t already = kFALSE ;
204 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
205 if ( newprimary == tempo[kndex] ){
210 if ( !already) { // store it
211 tempo[fMulTrack] = newprimary ;
214 } // all primaries in digit
215 delete newprimaryarray ;
219 fTracksList = new Int_t[fMulTrack] ;
220 for(index = 0; index < fMulTrack; index++)
221 fTracksList[index] = tempo[index] ;
227 //______________________________________________________________________________
228 void AliPHOSRecPoint::Paint(Option_t *)
230 // Paint this ALiRecPoint as a TMarker with its current attributes
232 TVector3 pos(0.,0.,0.) ;
233 GetLocalPosition(pos) ;
234 Coord_t x = pos.X() ;
235 Coord_t y = pos.Z() ;
236 Color_t markercolor = 1 ;
237 Size_t markersize = 1. ;
238 Style_t markerstyle = 5 ;
240 if (!gPad->IsBatch()) {
241 gVirtualX->SetMarkerColor(markercolor) ;
242 gVirtualX->SetMarkerSize (markersize) ;
243 gVirtualX->SetMarkerStyle(markerstyle) ;
245 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
246 gPad->PaintPolyMarker(1,&x,&y,"") ;