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 AliPositionObj
20 // Handling of positions in various reference frames.
22 // This class is meant to provide an AliPosition object which is derived
23 // from TObject such that it can be stored in e.g. TObjArray etc...
24 // and that it can be written out using the ROOT I/O machinery.
29 // Float_t a[3]={1,2,3};
30 // Float_t ea[3]={0.01,0.02,0.03};
31 // Float_t b[3]={4,5,6};
32 // Float_t eb[3]={0.04,0.05,0.06};
36 // r1.SetPosition(a,"car");
37 // r1.SetPositionErrors(ea,"car");
38 // r2.SetPosition(b,"car");
39 // r2.SetPositionErrors(eb,"car");
41 // Ali3Vector sum=r1+r2;
42 // Ali3Vector rel=r1-r2;
44 // AliPositionObj rr1(r1);
45 // AliPositionObj rr2;
47 // AliPositionObj ssum(r1+r2);
53 //--- Author: Nick van Eijndhoven 18-oct-1999 UU-SAP Utrecht
54 //- Modified: NvE $Date$ UU-SAP Utrecht
55 ///////////////////////////////////////////////////////////////////////////
57 #include "AliPositionObj.h"
59 ClassImp(AliPositionObj) // Class implementation to enable ROOT I/O
61 AliPositionObj::AliPositionObj()
63 // Creation of an AliPositionObj object and initialisation of parameters.
64 // All attributes initialised to 0.
66 ///////////////////////////////////////////////////////////////////////////
67 AliPositionObj::AliPositionObj(Ali3Vector& q)
69 // Creation of an AliPositionObj object and initialisation of parameters.
70 // All attributes are initialised to the values of the input Ali3Vector.
73 ///////////////////////////////////////////////////////////////////////////
74 AliPositionObj::~AliPositionObj()
76 // Destructor to delete dynamically allocated memory.
78 ///////////////////////////////////////////////////////////////////////////
79 void AliPositionObj::Load(Ali3Vector& q)
81 // Load all attributes of the input Ali3Vector into this AliPositionObj object.
82 Double_t temp=q.GetResultError();
87 SetPositionErrors(a,"car");
90 ///////////////////////////////////////////////////////////////////////////