Adding the fitting for transformation with
[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
6c8cd883 21//-- Author: Gines Martinez (SUBATECH)
d15a28e7 22
23// --- ROOT system ---
9f616d61 24#include "TPad.h"
e957fea8 25#include "TGraph.h"
26#include "TPaveText.h"
2731cd1e 27#include "TClonesArray.h"
e4517abc 28#include "TGeoMatrix.h"
d15a28e7 29
30// --- Standard library ---
31
32// --- AliRoot header files ---
1c4f25fb 33#include "AliLog.h"
c307c629 34#include "AliPHOSLoader.h"
d15a28e7 35#include "AliPHOSGeometry.h"
36#include "AliPHOSDigit.h"
37#include "AliPHOSRecPoint.h"
b48eb81e 38#include "AliGeomManager.h"
9f616d61 39
d15a28e7 40ClassImp(AliPHOSRecPoint)
41
42
43//____________________________________________________________________________
44AliPHOSRecPoint::AliPHOSRecPoint()
9ee9f78d 45 : AliCluster(),fPHOSMod(0),
85d85a6d 46 fMulTrack(0),fMaxDigit(100),fMulDigit(0),fMaxTrack(200),
9ee9f78d 47 fDigitsList(0),fTracksList(0),fAmp(0),
48 fIndexInList(-1), // to be set when the point is already stored
49 fLocPos(0,0,0),fLocPosM(0)
d15a28e7 50{
b2a60966 51 // ctor
52
d15a28e7 53}
54
55//____________________________________________________________________________
9ee9f78d 56AliPHOSRecPoint::AliPHOSRecPoint(const char * )
57 : AliCluster(),fPHOSMod(0),
58 fMulTrack(0),fMaxDigit(100),fMulDigit(0),fMaxTrack(200),
85d85a6d 59 fDigitsList(new Int_t[fMaxDigit]),fTracksList(new Int_t[fMaxTrack]),fAmp(0),
9ee9f78d 60 fIndexInList(-1), // to be set when the point is already stored
61 fLocPos(0,0,0),fLocPosM(new TMatrixF(3,3))
62
73a68ccb 63{
64 // ctor
65
55fe9d13 66}
9ee9f78d 67//_______________________________________________________________________
68AliPHOSRecPoint::~AliPHOSRecPoint()
69{
70 // dtor
71
72 delete fLocPosM ;
73 delete [] fDigitsList ;
74 delete [] fTracksList ;
75
76}
77//____________________________________________________________________________
78AliPHOSRecPoint::AliPHOSRecPoint(const AliPHOSRecPoint &rp) :
79 AliCluster(rp),
80 fPHOSMod(rp.fPHOSMod),fMulTrack(rp.fMulTrack),fMaxDigit(rp.fMaxDigit),
25779c68 81 fMulDigit(rp.fMulDigit),fMaxTrack(rp.fMaxTrack),fDigitsList(0x0),
82 fTracksList(0x0),fAmp(rp.fAmp),fIndexInList(rp.fIndexInList),
9ee9f78d 83 fLocPos(rp.fLocPos),fLocPosM(rp.fLocPosM)
84{
85 //copy ctor
55fe9d13 86
25779c68 87 if (rp.fMulDigit>0) fDigitsList = new Int_t[rp.fMulDigit];
85d85a6d 88 for(Int_t i=0; i<fMulDigit; i++)
9ee9f78d 89 fDigitsList[i] = rp.fDigitsList[i];
90
25779c68 91 if (rp.fMulTrack>0) fTracksList = new Int_t[rp.fMulTrack];
85d85a6d 92 for(Int_t i=0; i<fMulTrack; i++)
9ee9f78d 93 fTracksList[i] = rp.fTracksList[i];
94
95}
96//____________________________________________________________________________
97AliPHOSRecPoint& AliPHOSRecPoint::operator= (const AliPHOSRecPoint &rp)
98{
99 if(&rp == this) return *this;
100
101 fPHOSMod = rp.fPHOSMod;
102 fMulTrack = rp.fMulTrack;
103 fMaxDigit = rp.fMaxDigit;
104 fMulDigit = rp.fMulDigit;
105 fMaxTrack = rp.fMaxTrack;
106 fAmp = rp.fAmp;
107 fIndexInList = rp.fIndexInList;
108 fLocPos = rp.fLocPos;
109 fLocPosM = rp.fLocPosM;
110
111 for(Int_t i=0; i<fMaxDigit; i++)
112 fDigitsList[i] = rp.fDigitsList[i];
113
114 for(Int_t i=0; i<fMaxTrack; i++)
115 fTracksList[i] = rp.fTracksList[i];
116
117 return *this;
118}
55fe9d13 119//____________________________________________________________________________
9f616d61 120Int_t AliPHOSRecPoint::DistancetoPrimitive(Int_t px, Int_t py)
121{
b2a60966 122 // Compute distance from point px,py to a AliPHOSRecPoint considered as a Tmarker
123 // Compute the closest distance of approach from point px,py to this marker.
124 // The distance is computed in pixels units.
125
126 TVector3 pos(0.,0.,0.) ;
127 GetLocalPosition( pos) ;
128 Float_t x = pos.X() ;
129 Float_t y = pos.Z() ;
130 const Int_t kMaxDiff = 10;
131 Int_t pxm = gPad->XtoAbsPixel(x);
132 Int_t pym = gPad->YtoAbsPixel(y);
133 Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym);
134
135 if (dist > kMaxDiff) return 9999;
136 return dist;
9f616d61 137}
6ad0bfa0 138
9f616d61 139//___________________________________________________________________________
140 void AliPHOSRecPoint::Draw(Option_t *option)
141 {
6ad0bfa0 142 // Draw this AliPHOSRecPoint with its current attributes
143
144 AppendPad(option);
9f616d61 145 }
146
147//______________________________________________________________________________
8f2a3661 148void AliPHOSRecPoint::ExecuteEvent(Int_t event, Int_t, Int_t)
9f616d61 149{
6ad0bfa0 150 // Execute action corresponding to one event
151 // This member function is called when a AliPHOSRecPoint is clicked with the locator
152 //
153 // If Left button is clicked on AliPHOSRecPoint, the digits are switched on
154 // and switched off when the mouse button is released.
9f616d61 155
156 // static Int_t pxold, pyold;
157
b2a60966 158 static TGraph * digitgraph = 0 ;
159 static TPaveText* clustertext = 0 ;
160
161 if (!gPad->IsEditable()) return;
9f616d61 162
b2a60966 163 switch (event) {
164
165
166 case kButton1Down:{
167 AliPHOSDigit * digit ;
88cb7938 168
6c8cd883 169 AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
7b7c1533 170
b2a60966 171 Int_t iDigit;
172 Int_t relid[4] ;
31aa6d6c 173
88714635 174 const Int_t kMulDigit=AliPHOSRecPoint::GetDigitsMultiplicity() ;
175 Float_t * xi = new Float_t [kMulDigit] ;
176 Float_t * zi = new Float_t [kMulDigit] ;
b2a60966 177
88714635 178 for(iDigit = 0; iDigit < kMulDigit; iDigit++) {
4696e514 179 Fatal("AliPHOSRecPoint::ExecuteEvent", "-> Something wrong with the code");
7a9d98f9 180 digit = 0 ; //dynamic_cast<AliPHOSDigit *>((fDigitsList)[iDigit]);
b2a60966 181 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
182 phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]) ;
183 }
184
185 if (!digitgraph) {
186 digitgraph = new TGraph(fMulDigit,xi,zi);
187 digitgraph-> SetMarkerStyle(5) ;
188 digitgraph-> SetMarkerSize(1.) ;
189 digitgraph-> SetMarkerColor(1) ;
190 digitgraph-> Draw("P") ;
191 }
192 if (!clustertext) {
193
194 TVector3 pos(0.,0.,0.) ;
195 GetLocalPosition(pos) ;
196 clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ;
197 Text_t line1[40] ;
198 Text_t line2[40] ;
199 sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ;
200 sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ;
201 clustertext ->AddText(line1) ;
202 clustertext ->AddText(line2) ;
203 clustertext ->Draw("");
204 }
205 gPad->Update() ;
a8c47ab6 206 Print("dummy") ;
31aa6d6c 207 delete[] xi ;
208 delete[] zi ;
209 }
b2a60966 210
31aa6d6c 211break;
b2a60966 212
213 case kButton1Up:
214 if (digitgraph) {
215 delete digitgraph ;
216 digitgraph = 0 ;
217 }
218 if (clustertext) {
219 delete clustertext ;
220 clustertext = 0 ;
221 }
222
223 break;
224
9f616d61 225 }
9f616d61 226}
ad8cfaf4 227//____________________________________________________________________________
308fb942 228void AliPHOSRecPoint::EvalAll(TClonesArray * /* digits */)
88cb7938 229{
ad8cfaf4 230 //evaluates (if necessary) all RecPoint data members
9f616d61 231
ad8cfaf4 232}
88cb7938 233
d15a28e7 234//____________________________________________________________________________
2731cd1e 235void AliPHOSRecPoint::EvalPHOSMod(AliPHOSDigit * digit)
b2a60966 236{
237 // Returns the PHOS module in which the RecPoint is found
83974468 238
2731cd1e 239 if( fPHOSMod == 0){
ad8cfaf4 240 Int_t relid[4] ;
88cb7938 241
9a2cdbdf 242 AliPHOSGeometry * phosgeom = (AliPHOSGeometry::GetInstance());
d15a28e7 243
92862013 244 phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
d15a28e7 245 fPHOSMod = relid[0];
2731cd1e 246 }
d15a28e7 247}
6ad0bfa0 248
4b45b217 249//____________________________________________________________________________
e8d02863 250void AliPHOSRecPoint::GetGlobalPosition(TVector3 & gpos, TMatrixF & gmat) const
4b45b217 251{
252 // returns the position of the cluster in the global reference system of ALICE
253 // and the uncertainty on this position
9ee9f78d 254
c307c629 255 AliPHOSGeometry * phosgeom = (AliPHOSGeometry::GetInstance());
256 phosgeom->GetGlobalPHOS(this, gpos, gmat);
9ee9f78d 257
4b45b217 258}
259
cf239357 260//______________________________________________________________________________
9f616d61 261void AliPHOSRecPoint::Paint(Option_t *)
262{
b2a60966 263 // Paint this ALiRecPoint as a TMarker with its current attributes
264
265 TVector3 pos(0.,0.,0.) ;
266 GetLocalPosition(pos) ;
267 Coord_t x = pos.X() ;
268 Coord_t y = pos.Z() ;
269 Color_t markercolor = 1 ;
270 Size_t markersize = 1. ;
271 Style_t markerstyle = 5 ;
272
273 if (!gPad->IsBatch()) {
274 gVirtualX->SetMarkerColor(markercolor) ;
275 gVirtualX->SetMarkerSize (markersize) ;
276 gVirtualX->SetMarkerStyle(markerstyle) ;
277 }
278 gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ;
279 gPad->PaintPolyMarker(1,&x,&y,"") ;
9f616d61 280}
88cb7938 281//______________________________________________________________________________
9ee9f78d 282void AliPHOSRecPoint::GetLocalPosition(TVector3 & pos) const
283{
284 // returns the position of the cluster in the local reference system
285 // of the sub-detector
286
287 pos = fLocPos;
288}
b48eb81e 289
290//____________________________________________________________________________
291void AliPHOSRecPoint::EvalLocal2TrackingCSTransform()
292{
293 //Evaluates local to "tracking" c.s. transformation (B.P.).
294 //All evaluations should be completed before calling for this function.
295 //See ALICE PPR Chapter 5 p.18 for "tracking" c.s. definition,
296 //or just ask Jouri Belikov. :)
297
298 if(IsEmc()) {
299 SetVolumeId(AliGeomManager::LayerToVolUID(AliGeomManager::kPHOS1,GetPHOSMod()-1));
300 }
301 else
76e42795 302 SetVolumeId(AliGeomManager::LayerToVolUID(AliGeomManager::kPHOS2,GetPHOSMod()-1));
b48eb81e 303
7af865cb 304 Double_t lxyz[3] = {fLocPos.X(),fLocPos.Y(),fLocPos.Z()};
b48eb81e 305 Double_t txyz[3] = {0,0,0};
7af865cb 306 Double_t dy;
307 Double_t crystalShift;
308
9a2cdbdf 309 AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance();
7af865cb 310 AliPHOSEMCAGeometry* geoEMCA = phosgeom->GetEMCAGeometry();
311
312 //Calculate offset to crystal surface.
313 //See fCrystalShift code in AliPHOSGeometry::Init()).
314
315 Float_t * inthermo = geoEMCA->GetInnerThermoHalfSize() ;
316 Float_t * strip = geoEMCA->GetStripHalfSize() ;
317 Float_t* splate = geoEMCA->GetSupportPlateHalfSize();
318 Float_t * crystal = geoEMCA->GetCrystalHalfSize() ;
319 Float_t * pin = geoEMCA->GetAPDHalfSize() ;
320 Float_t * preamp = geoEMCA->GetPreampHalfSize() ;
321 crystalShift = -inthermo[1]+strip[1]+splate[1]+crystal[1]-geoEMCA->GetAirGapLed()/2.+pin[1]+preamp[1] ;
322
323 if(IsEmc()) {
324 dy = crystalShift;
325 lxyz[2] = -lxyz[2]; //Opposite z directions in EMC matrix and local frame!!!
326 }
327 else
328 dy = phosgeom->GetCPVBoxSize(1)/2.; //center of CPV module
329
330 lxyz[1] = lxyz[1] - dy;
b48eb81e 331
332 const TGeoHMatrix* tr2loc = GetTracking2LocalMatrix();
333 if(!tr2loc) AliFatal(Form("No Tracking2LocalMatrix found."));
334
335 tr2loc->MasterToLocal(lxyz,txyz);
7e9d90f9 336 SetX(txyz[0]); SetY(txyz[1]); SetZ(txyz[2]);
b48eb81e 337
7af865cb 338 if(AliLog::GetGlobalDebugLevel()>0) {
339 TVector3 gpos; TMatrixF gmat;
340 GetGlobalPosition(gpos,gmat);
341 Float_t gxyz[3];
342 GetGlobalXYZ(gxyz);
343 TString emc;
344 if(IsEmc())
345 emc="EMC";
346 else
347 emc="CPV";
348 AliInfo(Form("lCS-->(%.3f,%.3f,%.3f), tCS-->(%.3f,%.3f,%.3f), gCS-->(%.3f,%.3f,%.3f), gCScalc-->(%.3f,%.3f,%.3f), module %d %s",
349 fLocPos.X(),fLocPos.Y(),fLocPos.Z(),
350 GetX(),GetY(),GetZ(),
351 gpos.X(),gpos.Y(),gpos.Z(),
352 gxyz[0],gxyz[1],gxyz[2],GetPHOSMod(),emc.Data()));
353 }
354
b48eb81e 355}