Correcting for disappearance of kPI
[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 ---
28
29// --- AliRoot header files ---
30
31#include "AliPHOSGeometry.h"
32#include "AliPHOSDigit.h"
33#include "AliPHOSRecPoint.h"
7b7c1533 34#include "AliPHOSGetter.h"
9f616d61 35
d15a28e7 36ClassImp(AliPHOSRecPoint)
37
38
39//____________________________________________________________________________
40AliPHOSRecPoint::AliPHOSRecPoint()
41 : AliRecPoint()
42{
b2a60966 43 // ctor
44
88cb7938 45 fMaxTrack = 0 ;
46 fPHOSMod = 0 ;
4b45b217 47
d15a28e7 48}
49
50//____________________________________________________________________________
73a68ccb 51AliPHOSRecPoint::AliPHOSRecPoint(const char * opt) : AliRecPoint(opt)
52{
53 // ctor
54
55 fMaxTrack = 200 ;
88cb7938 56 fPHOSMod = 0;
55fe9d13 57
58}
59
60//____________________________________________________________________________
9f616d61 61Int_t AliPHOSRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
62{
b2a60966 63 // Compute distance from point px,py to a AliPHOSRecPoint considered as a Tmarker
64 // Compute the closest distance of approach from point px,py to this marker.
65 // The distance is computed in pixels units.
66
67 TVector3 pos(0.,0.,0.) ;
68 GetLocalPosition( pos) ;
69 Float_t x = pos.X() ;
70 Float_t y = pos.Z() ;
71 const Int_t kMaxDiff = 10;
72 Int_t pxm = gPad->XtoAbsPixel(x);
73 Int_t pym = gPad->YtoAbsPixel(y);
74 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
75
76 if (dist > kMaxDiff) return 9999;
77 return dist;
9f616d61 78}
6ad0bfa0 79
9f616d61 80//___________________________________________________________________________
81 void AliPHOSRecPoint::Draw(Option_t *option)
82 {
6ad0bfa0 83 // Draw this AliPHOSRecPoint with its current attributes
84
85 AppendPad(option);
9f616d61 86 }
87
88//______________________________________________________________________________
88cb7938 89void AliPHOSRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py)
9f616d61 90{
6ad0bfa0 91 // Execute action corresponding to one event
92 // This member function is called when a AliPHOSRecPoint is clicked with the locator
93 //
94 // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
95 // and switched off when the mouse button is released.
9f616d61 96
97 // static Int_t pxold, pyold;
98
b2a60966 99 static TGraph * digitgraph = 0 ;
100 static TPaveText* clustertext = 0 ;
101
102 if (!gPad->IsEditable()) return;
9f616d61 103
b2a60966 104 switch (event) {
105
106
107 case kButton1Down:{
108 AliPHOSDigit * digit ;
88cb7938 109
110// Accessing geometry this way is equivalent to getting from gAlice
111// to have Detector in Folder one have to load gAlice anyway
112// AliPHOSLoader * gime = AliPHOSLoader::GetInstance();
113// AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry());
114
115 AliPHOSGeometry * phosgeom = AliPHOSLoader::GetPHOSGeometry();
7b7c1533 116
b2a60966 117 Int_t iDigit;
118 Int_t relid[4] ;
31aa6d6c 119
88714635 120 const Int_t kMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ;
121 Float_t * xi = new Float_t [kMulDigit] ;
122 Float_t * zi = new Float_t [kMulDigit] ;
b2a60966 123
88714635 124 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
4696e514 125 Fatal("AliPHOSRecPoint::ExecuteEvent", "-> Something wrong with the code");
7a9d98f9 126 digit = 0 ; //dynamic_cast<AliPHOSDigit *>((fDigitsList)[iDigit]);
b2a60966 127 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
128 phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]) ;
129 }
130
131 if (!digitgraph) {
132 digitgraph = new TGraph(fMulDigit,xi,zi);
133 digitgraph-> SetMarkerStyle(5) ;
134 digitgraph-> SetMarkerSize(1.) ;
135 digitgraph-> SetMarkerColor(1) ;
136 digitgraph-> Draw("P") ;
137 }
138 if (!clustertext) {
139
140 TVector3 pos(0.,0.,0.) ;
141 GetLocalPosition(pos) ;
142 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
143 Text_t line1[40] ;
144 Text_t line2[40] ;
145 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
146 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
147 clustertext ->AddText(line1) ;
148 clustertext ->AddText(line2) ;
149 clustertext ->Draw("");
150 }
151 gPad->Update() ;
152 Print() ;
31aa6d6c 153 delete[] xi ;
154 delete[] zi ;
155 }
b2a60966 156
31aa6d6c 157break;
b2a60966 158
159 case kButton1Up:
160 if (digitgraph) {
161 delete digitgraph ;
162 digitgraph = 0 ;
163 }
164 if (clustertext) {
165 delete clustertext ;
166 clustertext = 0 ;
167 }
168
169 break;
170
9f616d61 171 }
9f616d61 172}
ad8cfaf4 173//____________________________________________________________________________
88cb7938 174void AliPHOSRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits)
175{
ad8cfaf4 176 //evaluates (if necessary) all RecPoint data members
9f616d61 177
2731cd1e 178 EvalPrimaries(digits) ;
ad8cfaf4 179}
88cb7938 180
d15a28e7 181//____________________________________________________________________________
2731cd1e 182void AliPHOSRecPoint::EvalPHOSMod(AliPHOSDigit * digit)
b2a60966 183{
184 // Returns the PHOS module in which the RecPoint is found
83974468 185
2731cd1e 186 if( fPHOSMod == 0){
ad8cfaf4 187 Int_t relid[4] ;
88cb7938 188
189 AliPHOSGeometry * phosgeom = (AliPHOSGetter::Instance())->PHOSGeometry();
d15a28e7 190
92862013 191 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
d15a28e7 192 fPHOSMod = relid[0];
2731cd1e 193 }
d15a28e7 194}
6ad0bfa0 195
9f616d61 196//______________________________________________________________________________
2731cd1e 197void AliPHOSRecPoint::EvalPrimaries(TClonesArray * digits)
cf239357 198{
2731cd1e 199 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
b2a60966 200
cf239357 201 AliPHOSDigit * digit ;
2731cd1e 202 Int_t * tempo = new Int_t[fMaxTrack] ;
203
204 Int_t index ;
cf239357 205 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
7a9d98f9 206 digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ;
88cb7938 207 Int_t nprimaries = digit->GetNprimary() ;
208 if(nprimaries){
209 Int_t * newprimaryarray = new Int_t[nprimaries] ;
210 Int_t ii ;
211 for ( ii = 0 ; ii < nprimaries ; ii++)
212 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
213
214 Int_t jndex ;
215 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
216 if ( fMulTrack > fMaxTrack ) {
217 fMulTrack = - 1 ;
218 Error("EvalPrimaries", "GetNprimaries ERROR > increase fMaxTrack" ) ;
219 break ;
220 }
221 Int_t newprimary = newprimaryarray[jndex] ;
222 Int_t kndex ;
223 Bool_t already = kFALSE ;
224 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
225 if ( newprimary == tempo[kndex] ){
226 already = kTRUE ;
884e9693 227 break ;
228 }
88cb7938 229 } // end of check
230 if ( !already) { // store it
231 tempo[fMulTrack] = newprimary ;
232 fMulTrack++ ;
233 } // store it
234 } // all primaries in digit
235 delete [] newprimaryarray ;
884e9693 236 }
cf239357 237 } // all digits
238
884e9693 239 if(fMulTrack)
240 fTracksList = new Int_t[fMulTrack] ;
2731cd1e 241 for(index = 0; index < fMulTrack; index++)
884e9693 242 fTracksList[index] = tempo[index] ;
243
780a31c1 244 delete [] tempo ;
884e9693 245
cf239357 246}
4b45b217 247//____________________________________________________________________________
248void AliPHOSRecPoint::GetGlobalPosition(TVector3 & gpos, TMatrix & gmat) const
249{
250 // returns the position of the cluster in the global reference system of ALICE
251 // and the uncertainty on this position
88cb7938 252 (AliPHOSGetter::Instance())->PHOSGeometry()->GetGlobal(this, gpos, gmat);
4b45b217 253}
254
cf239357 255
256//______________________________________________________________________________
9f616d61 257void AliPHOSRecPoint::Paint(Option_t *)
258{
b2a60966 259 // Paint this ALiRecPoint as a TMarker with its current attributes
260
261 TVector3 pos(0.,0.,0.) ;
262 GetLocalPosition(pos) ;
263 Coord_t x = pos.X() ;
264 Coord_t y = pos.Z() ;
265 Color_t markercolor = 1 ;
266 Size_t markersize = 1. ;
267 Style_t markerstyle = 5 ;
268
269 if (!gPad->IsBatch()) {
270 gVirtualX->SetMarkerColor(markercolor) ;
271 gVirtualX->SetMarkerSize (markersize) ;
272 gVirtualX->SetMarkerStyle(markerstyle) ;
273 }
274 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
275 gPad->PaintPolyMarker(1,&x,&y,"") ;
9f616d61 276}
88cb7938 277//______________________________________________________________________________
278