coding conventions corrections
[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
baef0810 45 fMaxTrack = 200 ;
d15a28e7 46 fPHOSMod = 0;
4b45b217 47
d15a28e7 48}
49
50//____________________________________________________________________________
73a68ccb 51AliPHOSRecPoint::AliPHOSRecPoint(const char * opt) : AliRecPoint(opt)
52{
53 // ctor
54
55 fMaxTrack = 200 ;
56 fPHOSMod = 0;
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//______________________________________________________________________________
cde7e5dc 89void AliPHOSRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py) const
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 ;
7b7c1533 109 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7a9d98f9 110 AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry());
7b7c1533 111
b2a60966 112 Int_t iDigit;
113 Int_t relid[4] ;
31aa6d6c 114
88714635 115 const Int_t kMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ;
116 Float_t * xi = new Float_t [kMulDigit] ;
117 Float_t * zi = new Float_t [kMulDigit] ;
b2a60966 118
88714635 119 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
4696e514 120 Fatal("AliPHOSRecPoint::ExecuteEvent", "-> Something wrong with the code");
7a9d98f9 121 digit = 0 ; //dynamic_cast<AliPHOSDigit *>((fDigitsList)[iDigit]);
b2a60966 122 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
123 phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]) ;
124 }
125
126 if (!digitgraph) {
127 digitgraph = new TGraph(fMulDigit,xi,zi);
128 digitgraph-> SetMarkerStyle(5) ;
129 digitgraph-> SetMarkerSize(1.) ;
130 digitgraph-> SetMarkerColor(1) ;
131 digitgraph-> Draw("P") ;
132 }
133 if (!clustertext) {
134
135 TVector3 pos(0.,0.,0.) ;
136 GetLocalPosition(pos) ;
137 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
138 Text_t line1[40] ;
139 Text_t line2[40] ;
140 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
141 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
142 clustertext ->AddText(line1) ;
143 clustertext ->AddText(line2) ;
144 clustertext ->Draw("");
145 }
146 gPad->Update() ;
147 Print() ;
31aa6d6c 148 delete[] xi ;
149 delete[] zi ;
150 }
b2a60966 151
31aa6d6c 152break;
b2a60966 153
154 case kButton1Up:
155 if (digitgraph) {
156 delete digitgraph ;
157 digitgraph = 0 ;
158 }
159 if (clustertext) {
160 delete clustertext ;
161 clustertext = 0 ;
162 }
163
164 break;
165
9f616d61 166 }
9f616d61 167}
ad8cfaf4 168//____________________________________________________________________________
2731cd1e 169void AliPHOSRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits) {
ad8cfaf4 170 //evaluates (if necessary) all RecPoint data members
9f616d61 171
2731cd1e 172 EvalPrimaries(digits) ;
ad8cfaf4 173}
d15a28e7 174//____________________________________________________________________________
2731cd1e 175void AliPHOSRecPoint::EvalPHOSMod(AliPHOSDigit * digit)
b2a60966 176{
177 // Returns the PHOS module in which the RecPoint is found
83974468 178
2731cd1e 179 if( fPHOSMod == 0){
ad8cfaf4 180 Int_t relid[4] ;
83974468 181
7b7c1533 182 AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ;
7a9d98f9 183 AliPHOSGeometry * phosgeom = const_cast<AliPHOSGeometry*>(gime->PHOSGeometry());
d15a28e7 184
92862013 185 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
d15a28e7 186 fPHOSMod = relid[0];
2731cd1e 187 }
d15a28e7 188}
6ad0bfa0 189
9f616d61 190//______________________________________________________________________________
2731cd1e 191void AliPHOSRecPoint::EvalPrimaries(TClonesArray * digits)
cf239357 192{
2731cd1e 193 // Constructs the list of primary particles (tracks) which have contributed to this RecPoint
bb53c80c 194 // First in the list - primary, made strongest contribution to the center
195
b2a60966 196
cf239357 197 AliPHOSDigit * digit ;
2731cd1e 198 Int_t * tempo = new Int_t[fMaxTrack] ;
199
bb53c80c 200 //Find digit in center
201 AliPHOSGeometry * geom = AliPHOSGeometry::GetInstance("IHEP","") ;
202 if(!geom){
203 Error("EvalPrimaries","Can not instantiate PHOS geometry") ;
204 return ;
205 }
206 TVector3 pos ;
207 TMatrix mat ;
208 GetGlobalPosition(pos,mat) ;
209 Int_t module ;
210 Double_t x,z ;
211 geom->ImpactOnEmc(pos.Theta(),pos.Phi(),module,z,x);
212 Int_t absId ;
213 geom->RelPosToAbsId(module,x,z,absId) ;
214 //copy primaries
2731cd1e 215 Int_t index ;
cf239357 216 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
7a9d98f9 217 digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ;
bb53c80c 218 if(digit->GetId() == absId){
219 fMulTrack = digit->GetNprimary() ;
220 for(Int_t ii = 0 ; ii < fMulTrack ; ii++)
221 tempo[ii] = digit->GetPrimary(ii+1) ;
222 }
223 }
224
225 for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits
226 digit = dynamic_cast<AliPHOSDigit *>(digits->At( fDigitsList[index] )) ;
227 if(digit->GetId()!=absId){ //already done
228 Int_t nprimaries = digit->GetNprimary() ;
229 if(nprimaries){
230 Int_t * newprimaryarray = new Int_t[nprimaries] ;
231 Int_t ii ;
232 for ( ii = 0 ; ii < nprimaries ; ii++)
233 newprimaryarray[ii] = digit->GetPrimary(ii+1) ;
234
235 Int_t jndex ;
236 for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit
237 if ( fMulTrack > fMaxTrack ) {
238 fMulTrack = - 1 ;
239 Error("EvalPrimaries", "GetNprimaries ERROR > increase fMaxTrack" ) ;
884e9693 240 break ;
241 }
bb53c80c 242 Int_t newprimary = newprimaryarray[jndex] ;
243 Int_t kndex ;
244 Bool_t already = kFALSE ;
245 for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored
246 if ( newprimary == tempo[kndex] ){
247 already = kTRUE ;
248 break ;
249 }
250 } // end of check
251 if ( !already) { // store it
252 tempo[fMulTrack] = newprimary ;
253 fMulTrack++ ;
254 } // store it
255 } // all primaries in digit
256 delete [] newprimaryarray ;
257 }
884e9693 258 }
cf239357 259 } // all digits
260
884e9693 261 if(fMulTrack)
262 fTracksList = new Int_t[fMulTrack] ;
2731cd1e 263 for(index = 0; index < fMulTrack; index++)
884e9693 264 fTracksList[index] = tempo[index] ;
265
780a31c1 266 delete [] tempo ;
884e9693 267
cf239357 268}
4b45b217 269//____________________________________________________________________________
270void AliPHOSRecPoint::GetGlobalPosition(TVector3 & gpos, TMatrix & gmat) const
271{
272 // returns the position of the cluster in the global reference system of ALICE
273 // and the uncertainty on this position
274
275
276 AliPHOSGetter::GetInstance()->PHOSGeometry()->GetGlobal(this, gpos, gmat) ;
277
278}
279
cf239357 280
281//______________________________________________________________________________
9f616d61 282void AliPHOSRecPoint::Paint(Option_t *)
283{
b2a60966 284 // Paint this ALiRecPoint as a TMarker with its current attributes
285
286 TVector3 pos(0.,0.,0.) ;
287 GetLocalPosition(pos) ;
288 Coord_t x = pos.X() ;
289 Coord_t y = pos.Z() ;
290 Color_t markercolor = 1 ;
291 Size_t markersize = 1. ;
292 Style_t markerstyle = 5 ;
293
294 if (!gPad->IsBatch()) {
295 gVirtualX->SetMarkerColor(markercolor) ;
296 gVirtualX->SetMarkerSize (markersize) ;
297 gVirtualX->SetMarkerStyle(markerstyle) ;
298 }
299 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
300 gPad->PaintPolyMarker(1,&x,&y,"") ;
9f616d61 301}