Inheritance from TObject. Automatic streamers.
[u/mrichter/AliRoot.git] / PHOS / AliPHOSRecPoint.cxx
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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>
29#include <stdio.h>
d15a28e7 30
31// --- AliRoot header files ---
32
33#include "AliPHOSGeometry.h"
34#include "AliPHOSDigit.h"
35#include "AliPHOSRecPoint.h"
7b7c1533 36#include "AliPHOSGetter.h"
9f616d61 37
d15a28e7 38ClassImp(AliPHOSRecPoint)
39
40
41//____________________________________________________________________________
42AliPHOSRecPoint::AliPHOSRecPoint()
43 : AliRecPoint()
44{
b2a60966 45 // ctor
46
baef0810 47 fMaxTrack = 200 ;
d15a28e7 48 fPHOSMod = 0;
4b45b217 49
d15a28e7 50}
51
52//____________________________________________________________________________
73a68ccb 53AliPHOSRecPoint::AliPHOSRecPoint(const char * opt) : AliRecPoint(opt)
54{
55 // ctor
56
57 fMaxTrack = 200 ;
58 fPHOSMod = 0;
59
60}
61
62//____________________________________________________________________________
9f616d61 63Int_t AliPHOSRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
64{
b2a60966 65 // Compute distance from point px,py to a AliPHOSRecPoint 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.
68
69 TVector3 pos(0.,0.,0.) ;
70 GetLocalPosition( pos) ;
71 Float_t x = pos.X() ;
72 Float_t y = pos.Z() ;
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);
77
78 if (dist > kMaxDiff) return 9999;
79 return dist;
9f616d61 80}
6ad0bfa0 81
9f616d61 82//___________________________________________________________________________
83 void AliPHOSRecPoint::Draw(Option_t *option)
84 {
6ad0bfa0 85 // Draw this AliPHOSRecPoint with its current attributes
86
87 AppendPad(option);
9f616d61 88 }
89
90//______________________________________________________________________________
91void AliPHOSRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py)
92{
6ad0bfa0 93 // Execute action corresponding to one event
94 // This member function is called when a AliPHOSRecPoint is clicked with the locator
95 //
96 // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
97 // and switched off when the mouse button is released.
9f616d61 98
99 // static Int_t pxold, pyold;
100
b2a60966 101 static TGraph * digitgraph = 0 ;
102 static TPaveText* clustertext = 0 ;
103
104 if (!gPad->IsEditable()) return;
9f616d61 105
b2a60966 106 switch (event) {
107
108
109 case kButton1Down:{
110 AliPHOSDigit * digit ;
7b7c1533 111 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7a9d98f9 112 AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry());
7b7c1533 113
b2a60966 114 Int_t iDigit;
115 Int_t relid[4] ;
31aa6d6c 116
88714635 117 const Int_t kMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ;
118 Float_t * xi = new Float_t [kMulDigit] ;
119 Float_t * zi = new Float_t [kMulDigit] ;
b2a60966 120
88714635 121 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
4696e514 122 Fatal("AliPHOSRecPoint::ExecuteEvent", "-> Something wrong with the code");
7a9d98f9 123 digit = 0 ; //dynamic_cast<AliPHOSDigit *>((fDigitsList)[iDigit]);
b2a60966 124 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
125 phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]) ;
126 }
127
128 if (!digitgraph) {
129 digitgraph = new TGraph(fMulDigit,xi,zi);
130 digitgraph-> SetMarkerStyle(5) ;
131 digitgraph-> SetMarkerSize(1.) ;
132 digitgraph-> SetMarkerColor(1) ;
133 digitgraph-> Draw("P") ;
134 }
135 if (!clustertext) {
136
137 TVector3 pos(0.,0.,0.) ;
138 GetLocalPosition(pos) ;
139 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
140 Text_t line1[40] ;
141 Text_t line2[40] ;
142 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
143 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
144 clustertext ->AddText(line1) ;
145 clustertext ->AddText(line2) ;
146 clustertext ->Draw("");
147 }
148 gPad->Update() ;
149 Print() ;
31aa6d6c 150 delete[] xi ;
151 delete[] zi ;
152 }
b2a60966 153
31aa6d6c 154break;
b2a60966 155
156 case kButton1Up:
157 if (digitgraph) {
158 delete digitgraph ;
159 digitgraph = 0 ;
160 }
161 if (clustertext) {
162 delete clustertext ;
163 clustertext = 0 ;
164 }
165
166 break;
167
9f616d61 168 }
9f616d61 169}
ad8cfaf4 170//____________________________________________________________________________
2731cd1e 171void AliPHOSRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits) {
ad8cfaf4 172 //evaluates (if necessary) all RecPoint data members
9f616d61 173
2731cd1e 174 EvalPrimaries(digits) ;
ad8cfaf4 175}
d15a28e7 176//____________________________________________________________________________
2731cd1e 177void AliPHOSRecPoint::EvalPHOSMod(AliPHOSDigit * digit)
b2a60966 178{
179 // Returns the PHOS module in which the RecPoint is found
83974468 180
2731cd1e 181 if( fPHOSMod == 0){
ad8cfaf4 182 Int_t relid[4] ;
83974468 183
7b7c1533 184 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7a9d98f9 185 AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry());
d15a28e7 186
92862013 187 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
d15a28e7 188 fPHOSMod = relid[0];
2731cd1e 189 }
d15a28e7 190}
6ad0bfa0 191
9f616d61 192//______________________________________________________________________________
2731cd1e 193void AliPHOSRecPoint::EvalPrimaries(TClonesArray * digits)
cf239357 194{
2731cd1e 195 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
b2a60966 196
cf239357 197 AliPHOSDigit * digit ;
2731cd1e 198 Int_t * tempo = new Int_t[fMaxTrack] ;
199
200 Int_t index ;
cf239357 201 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
7a9d98f9 202 digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ;
cf239357 203 Int_t nprimaries = digit->GetNprimary() ;
26d4b141 204 Int_t * newprimaryarray = new Int_t[nprimaries] ;
205 Int_t ii ;
206 for ( ii = 0 ; ii < nprimaries ; ii++)
207 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
2731cd1e 208
cf239357 209 Int_t jndex ;
210 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
2731cd1e 211 if ( fMulTrack > fMaxTrack ) {
212 fMulTrack = - 1 ;
213 cout << "AliPHOSRecPoint::GetNprimaries ERROR > increase fMaxTrack " << endl ;
cf239357 214 break ;
215 }
216 Int_t newprimary = newprimaryarray[jndex] ;
cf239357 217 Int_t kndex ;
218 Bool_t already = kFALSE ;
2731cd1e 219 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
cf239357 220 if ( newprimary == tempo[kndex] ){
221 already = kTRUE ;
222 break ;
223 }
224 } // end of check
b2a60966 225 if ( !already) { // store it
2731cd1e 226 tempo[fMulTrack] = newprimary ;
227 fMulTrack++ ;
cf239357 228 } // store it
229 } // all primaries in digit
26d4b141 230 delete newprimaryarray ;
cf239357 231 } // all digits
232
2731cd1e 233
234 fTracksList = new Int_t[fMulTrack] ;
235 for(index = 0; index < fMulTrack; index++)
236 fTracksList[index] = tempo[index] ;
237
238 delete tempo ;
239
cf239357 240}
4b45b217 241//____________________________________________________________________________
242void AliPHOSRecPoint::GetGlobalPosition(TVector3 & gpos, TMatrix & gmat) const
243{
244 // returns the position of the cluster in the global reference system of ALICE
245 // and the uncertainty on this position
246
247
248 AliPHOSGetter::GetInstance()->PHOSGeometry()->GetGlobal(this, gpos, gmat) ;
249
250}
251
cf239357 252
253//______________________________________________________________________________
9f616d61 254void AliPHOSRecPoint::Paint(Option_t *)
255{
b2a60966 256 // Paint this ALiRecPoint as a TMarker with its current attributes
257
258 TVector3 pos(0.,0.,0.) ;
259 GetLocalPosition(pos) ;
260 Coord_t x = pos.X() ;
261 Coord_t y = pos.Z() ;
262 Color_t markercolor = 1 ;
263 Size_t markersize = 1. ;
264 Style_t markerstyle = 5 ;
265
266 if (!gPad->IsBatch()) {
267 gVirtualX->SetMarkerColor(markercolor) ;
268 gVirtualX->SetMarkerSize (markersize) ;
269 gVirtualX->SetMarkerStyle(markerstyle) ;
270 }
271 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
272 gPad->PaintPolyMarker(1,&x,&y,"") ;
9f616d61 273}