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 **************************************************************************/
18 //_________________________________________________________________________
19 // Base Class for PHOS Reconstructed Points
21 //*-- Author: Gines Martinez (SUBATECH)
23 // --- ROOT system ---
26 // --- Standard library ---
30 // --- AliRoot header files ---
32 #include "AliPHOSGeometry.h"
33 #include "AliPHOSDigit.h"
34 #include "AliPHOSRecPoint.h"
38 ClassImp(AliPHOSRecPoint)
41 //____________________________________________________________________________
42 AliPHOSRecPoint::AliPHOSRecPoint()
47 fGeom = 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 fMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ;
105 Float_t * xi = new Float_t [fMulDigit] ;
106 Float_t * zi = new Float_t [fMulDigit] ;
108 for(iDigit=0; iDigit<fMulDigit; 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("");
157 //____________________________________________________________________________
158 Int_t AliPHOSRecPoint::GetPHOSMod()
160 // Returns the PHOS module in which the RecPoint is found
167 AliPHOSDigit * digit ;
168 digit = (AliPHOSDigit *) fDigitsList[0] ;
169 AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ;
171 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
176 //______________________________________________________________________________
177 Int_t * AliPHOSRecPoint::GetPrimaries(Int_t & number)
179 // Constructs the list of primary particles which have contributed to this RecPoint
181 AliPHOSDigit * digit ;
183 Int_t maxcounter = 10 ;
185 Int_t * tempo = new Int_t[maxcounter] ;
187 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
188 digit = (AliPHOSDigit *) fDigitsList[index] ;
189 Int_t nprimaries = digit->GetNprimary() ;
190 Int_t * newprimaryarray = new Int_t[nprimaries] ;
192 for ( ii = 0 ; ii < nprimaries ; ii++)
193 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
195 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
196 if ( counter > maxcounter ) {
198 cout << "AliPHOSRecPoint::GetNprimaries ERROR > increase maxcounter " << endl ;
201 Int_t newprimary = newprimaryarray[jndex] ;
203 Bool_t already = kFALSE ;
204 for ( kndex = 0 ; kndex < counter ; kndex++ ) { //check if not already stored
205 if ( newprimary == tempo[kndex] ){
210 if ( !already) { // store it
211 tempo[counter] = newprimary ;
214 } // all primaries in digit
215 delete newprimaryarray ;
222 //______________________________________________________________________________
223 void AliPHOSRecPoint::Paint(Option_t *)
225 // Paint this ALiRecPoint as a TMarker with its current attributes
227 TVector3 pos(0.,0.,0.) ;
228 GetLocalPosition(pos) ;
229 Coord_t x = pos.X() ;
230 Coord_t y = pos.Z() ;
231 Color_t markercolor = 1 ;
232 Size_t markersize = 1. ;
233 Style_t markerstyle = 5 ;
235 if (!gPad->IsBatch()) {
236 gVirtualX->SetMarkerColor(markercolor) ;
237 gVirtualX->SetMarkerSize (markersize) ;
238 gVirtualX->SetMarkerStyle(markerstyle) ;
240 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
241 gPad->PaintPolyMarker(1,&x,&y,"") ;