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 **************************************************************************/
20 ///////////////////////////////////////////////////////////////////////////
21 // Class AliPositionObj
22 // Handling of positions in various reference frames.
24 // This class is meant to provide an AliPosition object which is derived
25 // from TObject such that it can be stored in e.g. TObjArray etc...
26 // and that it can be written out using the ROOT I/O machinery.
31 // Float_t a[3]={1,2,3};
32 // Float_t ea[3]={0.01,0.02,0.03};
33 // Float_t b[3]={4,5,6};
34 // Float_t eb[3]={0.04,0.05,0.06};
38 // r1.SetPosition(a,"car");
39 // r1.SetPositionErrors(ea,"car");
40 // r2.SetPosition(b,"car");
41 // r2.SetPositionErrors(eb,"car");
43 // Ali3Vector sum=r1+r2;
44 // Ali3Vector rel=r1-r2;
46 // AliPositionObj rr1(r1);
47 // AliPositionObj rr2;
49 // AliPositionObj ssum(r1+r2);
55 //--- Author: Nick van Eijndhoven 18-oct-1999 UU-SAP Utrecht
56 ///////////////////////////////////////////////////////////////////////////
58 #include "AliPositionObj.h"
60 ClassImp(AliPositionObj) // Class implementation to enable ROOT I/O
62 AliPositionObj::AliPositionObj()
64 // Creation of an AliPositionObj object and initialisation of parameters.
65 // All attributes initialised to 0.
67 ///////////////////////////////////////////////////////////////////////////
68 AliPositionObj::AliPositionObj(Ali3Vector& q)
70 // Creation of an AliPositionObj object and initialisation of parameters.
71 // All attributes are initialised to the values of the input Ali3Vector.
74 ///////////////////////////////////////////////////////////////////////////
75 AliPositionObj::~AliPositionObj()
77 // Destructor to delete dynamically allocated memory.
79 ///////////////////////////////////////////////////////////////////////////
80 void AliPositionObj::Load(Ali3Vector& q)
82 // Load all attributes of the input Ali3Vector into this AliPositionObj object.
83 Double_t temp=q.GetResultError();
88 SetPositionErrors(a,"car");
91 ///////////////////////////////////////////////////////////////////////////