Merge branch 'master' into TPCdev
[u/mrichter/AliRoot.git] / STEER / STEER / AliVertexer.cxx
CommitLineData
0742d588 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 **************************************************************************/
15
16/* $Id$ */
17
594d8990 18#include "AliLog.h"
4b3f8cff 19#include "AliESDVertex.h"
d65adc48 20#include "AliVertexer.h"
308c2f7c 21#include "AliMultiplicity.h"
2257f27e 22
23ClassImp(AliVertexer)
24
25//////////////////////////////////////////////////////////////////////
26// Base class for primary vertex reconstruction //
27// AliESDVertexer is a class for full 3D primary vertex finding //
28// derived classes: AliITSVertexer //
29// //
30//////////////////////////////////////////////////////////////////////
31
32//______________________________________________________________________
90e48c0c 33AliVertexer::AliVertexer() :
308c2f7c 34 fCurrentVertex(NULL),
35 fMult(NULL)
90e48c0c 36{
37 //
2257f27e 38 // Default Constructor
90e48c0c 39 //
4b3f8cff 40 SetVtxStart(0.,0.,0.);
41 for(Int_t i=0;i<6;i++)fNominalCov[i]=0.;
2257f27e 42}
43
2257f27e 44//______________________________________________________________________
45AliVertexer::~AliVertexer() {
46 // Default Destructor
32e449be 47
48 if(fMult) delete fMult;
2257f27e 49}
594d8990 50
4b3f8cff 51
52//---------------------------------------------------------------------------
53void AliVertexer::SetVtxStart(AliESDVertex *vtx)
54{
55//
56// Set initial vertex knowledge
57//
58 vtx->GetXYZ(fNominalPos);
59 vtx->GetCovMatrix(fNominalCov);
60 return;
594d8990 61}