1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 //_________________________________________________________________________
19 // Class for PMD reconstructed space points
20 // usually coming from the clusterisation algorithms
23 //////////////////////////////////////////////////////////////////////////////
25 // --- ROOT system ---
27 #include "TObjArray.h"
29 // --- Standard library ---
31 // --- AliRoot header files ---
33 #include "AliPMDRecPoint.h"
34 #include "AliGeometry.h"
35 #include "AliDigitNew.h"
37 ClassImp(AliPMDRecPoint)
40 //____________________________________________________________________________
41 //____________________________________________________________________________
42 void AliPMDRecPoint::AddDigit(AliDigitNew & digit)
44 // adds a digit to the digits list
45 // and accumulates the total amplitude and the multiplicity
48 if ( fMulDigit >= fMaxDigit ) { // increase the size of the list
49 int * tempo = new int[fMaxDigit*=2];
53 for ( index = 0 ; index < fMulDigit ; index++ )
54 tempo[index] = fDigitsList[index] ;
60 fDigitsList[fMulDigit] = digit.GetIndexInList() ;
62 fAmp += digit.GetAmp() ;
65 //____________________________________________________________________________
66 void AliPMDRecPoint::Copy(TObject & recp) const
69 // Copy *this onto pts
74 ((TObject*) this)->Copy((TObject&)recp);
75 ((AliPMDRecPoint&)recp).fAmp = fAmp;
76 ((AliPMDRecPoint&)recp).fGeom = fGeom;
77 ((AliPMDRecPoint&)recp).fIndexInList = fIndexInList;
78 ((AliPMDRecPoint&)recp).fLocPos = fLocPos;
79 ((AliPMDRecPoint&)recp).fLocPosM = new TMatrix(*fLocPosM);
80 ((AliPMDRecPoint&)recp).fMaxDigit = fMaxDigit;
81 ((AliPMDRecPoint&)recp).fMulDigit = fMulDigit;
82 ((AliPMDRecPoint&)recp).fMaxTrack = fMaxTrack;
83 ((AliPMDRecPoint&)recp).fMulTrack = fMulTrack;
85 // Duplicate pointed objects
86 ((AliPMDRecPoint&)recp).fDigitsList = new Int_t[fMulDigit];
87 memcpy(((AliPMDRecPoint&)recp).fDigitsList,fDigitsList,fMulDigit*sizeof(Int_t));
88 ((AliPMDRecPoint&)recp).fTracksList = new Int_t[fMulTrack];
89 memcpy(((AliPMDRecPoint&)recp).fTracksList,fTracksList,fMulTrack*sizeof(Int_t));
93 //____________________________________________________________________________
94 void AliPMDRecPoint::GetCovarianceMatrix(TMatrix & mat) const
96 // returns the covariant matrix for the local position
102 //____________________________________________________________________________
103 void AliPMDRecPoint::GetLocalPosition(TVector3 & pos) const
105 // returns the position of the cluster in the local reference system of the sub-detector
112 //____________________________________________________________________________
113 AliPMDRecPoint & AliPMDRecPoint::operator= (const AliPMDRecPoint &recp)
120 //____________________________________________________________________________
121 void AliPMDRecPoint::GetGlobalPosition(TVector3 & gpos, TMatrix & gmat) const
123 // returns the position of the cluster in the global reference system of ALICE
124 // and the uncertainty on this position
127 fGeom->GetGlobal(this, gpos, gmat) ;