Extra header added to the list
[u/mrichter/AliRoot.git] / EVE / EveBase / AliEveMagField.cxx
CommitLineData
6336e5d7 1// $Id$
2// Author: Matevz Tadel 2009
3
4/**************************************************************************
5 * Copyright(c) 1998-2009, ALICE Experiment at CERN, all rights reserved. *
6 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
7 * full copyright notice. *
8 **************************************************************************/
9
10#include "AliEveMagField.h"
11#include "AliEveEventManager.h"
12
13#include <AliMagF.h>
14
15//______________________________________________________________________________
16// Full description of AliEveMagField
17//
18
19ClassImp(AliEveMagField)
20
21//______________________________________________________________________________
22AliEveMagField::AliEveMagField(AliMagF* mf) :
23 TEveMagField(),
24 fField(mf)
25{
26 // Constructor.
27
28 if (fField == 0)
29 {
30 fField = AliEveEventManager::AssertMagField();
31 }
32}
33
34//______________________________________________________________________________
35TEveVector AliEveMagField::GetField(Float_t x, Float_t y, Float_t z) const
36{
37 // Return magnetic field at requested point.
38
39 Double_t rb[3] = { x, y, z };
40 Double_t bb[3];
41
42 fField->Field(rb, bb);
43
44 TEveVector b(bb);
45 b *= -0.1f;
46 return b;
47}