Extending to beam test analysis
[u/mrichter/AliRoot.git] / PHOS / AliPHOSRecPoint.cxx
CommitLineData
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 **************************************************************************/
b2a60966 15/* $Id$ */
d15a28e7 16//_________________________________________________________________________
b2a60966 17// Base Class for PHOS Reconstructed Points
2f04ed65 18// Why should I put meaningless comments
19// just to satisfy
20// the code checker
b2a60966 21//*-- Author: Gines Martinez (SUBATECH)
d15a28e7 22
23// --- ROOT system ---
9f616d61 24#include "TPad.h"
2731cd1e 25#include "TClonesArray.h"
d15a28e7 26
27// --- Standard library ---
de9ec31b 28#include <iostream.h>
d15a28e7 29
30// --- AliRoot header files ---
31
32#include "AliPHOSGeometry.h"
33#include "AliPHOSDigit.h"
34#include "AliPHOSRecPoint.h"
7b7c1533 35#include "AliPHOSGetter.h"
9f616d61 36
d15a28e7 37ClassImp(AliPHOSRecPoint)
38
39
40//____________________________________________________________________________
41AliPHOSRecPoint::AliPHOSRecPoint()
42 : AliRecPoint()
43{
b2a60966 44 // ctor
45
baef0810 46 fMaxTrack = 200 ;
d15a28e7 47 fPHOSMod = 0;
4b45b217 48
d15a28e7 49}
50
51//____________________________________________________________________________
73a68ccb 52AliPHOSRecPoint::AliPHOSRecPoint(const char * opt) : AliRecPoint(opt)
53{
54 // ctor
55
56 fMaxTrack = 200 ;
57 fPHOSMod = 0;
58
59}
60
61//____________________________________________________________________________
9f616d61 62Int_t AliPHOSRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
63{
b2a60966 64 // Compute distance from point px,py to a AliPHOSRecPoint considered as a Tmarker
65 // Compute the closest distance of approach from point px,py to this marker.
66 // The distance is computed in pixels units.
67
68 TVector3 pos(0.,0.,0.) ;
69 GetLocalPosition( pos) ;
70 Float_t x = pos.X() ;
71 Float_t y = pos.Z() ;
72 const Int_t kMaxDiff = 10;
73 Int_t pxm = gPad->XtoAbsPixel(x);
74 Int_t pym = gPad->YtoAbsPixel(y);
75 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
76
77 if (dist > kMaxDiff) return 9999;
78 return dist;
9f616d61 79}
6ad0bfa0 80
9f616d61 81//___________________________________________________________________________
82 void AliPHOSRecPoint::Draw(Option_t *option)
83 {
6ad0bfa0 84 // Draw this AliPHOSRecPoint with its current attributes
85
86 AppendPad(option);
9f616d61 87 }
88
89//______________________________________________________________________________
90void AliPHOSRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py)
91{
6ad0bfa0 92 // Execute action corresponding to one event
93 // This member function is called when a AliPHOSRecPoint is clicked with the locator
94 //
95 // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
96 // and switched off when the mouse button is released.
9f616d61 97
98 // static Int_t pxold, pyold;
99
b2a60966 100 static TGraph * digitgraph = 0 ;
101 static TPaveText* clustertext = 0 ;
102
103 if (!gPad->IsEditable()) return;
9f616d61 104
b2a60966 105 switch (event) {
106
107
108 case kButton1Down:{
109 AliPHOSDigit * digit ;
7b7c1533 110 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7a9d98f9 111 AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry());
7b7c1533 112
b2a60966 113 Int_t iDigit;
114 Int_t relid[4] ;
31aa6d6c 115
88714635 116 const Int_t kMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ;
117 Float_t * xi = new Float_t [kMulDigit] ;
118 Float_t * zi = new Float_t [kMulDigit] ;
b2a60966 119
88714635 120 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
4696e514 121 Fatal("AliPHOSRecPoint::ExecuteEvent", "-> Something wrong with the code");
7a9d98f9 122 digit = 0 ; //dynamic_cast<AliPHOSDigit *>((fDigitsList)[iDigit]);
b2a60966 123 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
124 phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]) ;
125 }
126
127 if (!digitgraph) {
128 digitgraph = new TGraph(fMulDigit,xi,zi);
129 digitgraph-> SetMarkerStyle(5) ;
130 digitgraph-> SetMarkerSize(1.) ;
131 digitgraph-> SetMarkerColor(1) ;
132 digitgraph-> Draw("P") ;
133 }
134 if (!clustertext) {
135
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,"") ;
139 Text_t line1[40] ;
140 Text_t line2[40] ;
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("");
146 }
147 gPad->Update() ;
148 Print() ;
31aa6d6c 149 delete[] xi ;
150 delete[] zi ;
151 }
b2a60966 152
31aa6d6c 153break;
b2a60966 154
155 case kButton1Up:
156 if (digitgraph) {
157 delete digitgraph ;
158 digitgraph = 0 ;
159 }
160 if (clustertext) {
161 delete clustertext ;
162 clustertext = 0 ;
163 }
164
165 break;
166
9f616d61 167 }
9f616d61 168}
ad8cfaf4 169//____________________________________________________________________________
2731cd1e 170void AliPHOSRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits) {
ad8cfaf4 171 //evaluates (if necessary) all RecPoint data members
9f616d61 172
2731cd1e 173 EvalPrimaries(digits) ;
ad8cfaf4 174}
d15a28e7 175//____________________________________________________________________________
2731cd1e 176void AliPHOSRecPoint::EvalPHOSMod(AliPHOSDigit * digit)
b2a60966 177{
178 // Returns the PHOS module in which the RecPoint is found
83974468 179
2731cd1e 180 if( fPHOSMod == 0){
ad8cfaf4 181 Int_t relid[4] ;
83974468 182
7b7c1533 183 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7a9d98f9 184 AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry());
d15a28e7 185
92862013 186 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
d15a28e7 187 fPHOSMod = relid[0];
2731cd1e 188 }
d15a28e7 189}
6ad0bfa0 190
9f616d61 191//______________________________________________________________________________
2731cd1e 192void AliPHOSRecPoint::EvalPrimaries(TClonesArray * digits)
cf239357 193{
2731cd1e 194 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
b2a60966 195
cf239357 196 AliPHOSDigit * digit ;
2731cd1e 197 Int_t * tempo = new Int_t[fMaxTrack] ;
198
199 Int_t index ;
cf239357 200 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
7a9d98f9 201 digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ;
cf239357 202 Int_t nprimaries = digit->GetNprimary() ;
26d4b141 203 Int_t * newprimaryarray = new Int_t[nprimaries] ;
204 Int_t ii ;
205 for ( ii = 0 ; ii < nprimaries ; ii++)
206 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
2731cd1e 207
cf239357 208 Int_t jndex ;
209 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
2731cd1e 210 if ( fMulTrack > fMaxTrack ) {
211 fMulTrack = - 1 ;
212 cout << "AliPHOSRecPoint::GetNprimaries ERROR > increase fMaxTrack " << endl ;
cf239357 213 break ;
214 }
215 Int_t newprimary = newprimaryarray[jndex] ;
cf239357 216 Int_t kndex ;
217 Bool_t already = kFALSE ;
2731cd1e 218 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
cf239357 219 if ( newprimary == tempo[kndex] ){
220 already = kTRUE ;
221 break ;
222 }
223 } // end of check
b2a60966 224 if ( !already) { // store it
2731cd1e 225 tempo[fMulTrack] = newprimary ;
226 fMulTrack++ ;
cf239357 227 } // store it
228 } // all primaries in digit
780a31c1 229 delete [] newprimaryarray ;
cf239357 230 } // all digits
231
2731cd1e 232
233 fTracksList = new Int_t[fMulTrack] ;
234 for(index = 0; index < fMulTrack; index++)
235 fTracksList[index] = tempo[index] ;
236
780a31c1 237 delete [] tempo ;
2731cd1e 238
cf239357 239}
4b45b217 240//____________________________________________________________________________
241void AliPHOSRecPoint::GetGlobalPosition(TVector3 & gpos, TMatrix & gmat) const
242{
243 // returns the position of the cluster in the global reference system of ALICE
244 // and the uncertainty on this position
245
246
247 AliPHOSGetter::GetInstance()->PHOSGeometry()->GetGlobal(this, gpos, gmat) ;
248
249}
250
cf239357 251
252//______________________________________________________________________________
9f616d61 253void AliPHOSRecPoint::Paint(Option_t *)
254{
b2a60966 255 // Paint this ALiRecPoint as a TMarker with its current attributes
256
257 TVector3 pos(0.,0.,0.) ;
258 GetLocalPosition(pos) ;
259 Coord_t x = pos.X() ;
260 Coord_t y = pos.Z() ;
261 Color_t markercolor = 1 ;
262 Size_t markersize = 1. ;
263 Style_t markerstyle = 5 ;
264
265 if (!gPad->IsBatch()) {
266 gVirtualX->SetMarkerColor(markercolor) ;
267 gVirtualX->SetMarkerSize (markersize) ;
268 gVirtualX->SetMarkerStyle(markerstyle) ;
269 }
270 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
271 gPad->PaintPolyMarker(1,&x,&y,"") ;
9f616d61 272}