In AddTaskPHOSPi0Flow.C set Cent. Bin past event buffers/lists,
[u/mrichter/AliRoot.git] / STEER / ESD / AliMeanVertex.cxx
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3018c446 1/**************************************************************************
2 * Copyright(c) 2007-2009, 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#include "AliMeanVertex.h"
17
18/* $Id$ */
19
20/*****************************************************************************
21 * *
22 * This class contains the coordinates of the mean primary vertex position *
23 * computed by AliITSMeanVertex *
24 * *
25*****************************************************************************/
26
27ClassImp(AliMeanVertex)
28
29//--------------------------------------------------------------------------
30AliMeanVertex::AliMeanVertex() :
31 AliESDVertex(),
32 fTotTracklets(0.),
33 fAverTracklets(0.),
34 fSigmaOnAverTrack(0.) {
35 //
36 // Default Constructor, set everything to 0
37 //
38 for(Int_t i=0;i<3;i++){
39 fErrW[i]=0.;
40 }
41}
42
43//--------------------------------------------------------------------------
44AliMeanVertex::AliMeanVertex(Double_t pos[3],Double_t err[3],Double_t cov[6],Int_t nevents, Float_t notracklets, Float_t avertracklets, Float_t signotrackl) :
45 AliESDVertex(pos,cov,0.,nevents,"MeanVertex"),
46 fTotTracklets(notracklets),
47 fAverTracklets(avertracklets),
48 fSigmaOnAverTrack(signotrackl) {
49 //
50 // Standard Constructor
51 //
52 for(Int_t i=0;i<3;i++){
53 fErrW[i]=err[i];
54 }
55}
56
57//--------------------------------------------------------------------------
58void AliMeanVertex::GetErrorsOnPosition(Double_t err[3]) const {
59 //
60 // Return errors on vertex average position (weighted mean on several events)
61 //
62 err[0] = fErrW[0];
63 err[1] = fErrW[1];
64 err[2] = fErrW[2];
65
66 return;
67}