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aab9c8d5 | 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 | ||
0742d588 | 16 | /* $Id$ */ |
116cbefd | 17 | |
0742d588 | 18 | #include "TLorentzVector.h" |
2cad796f | 19 | #include "TVirtualMC.h" |
0742d588 | 20 | |
2d74ba4f | 21 | #include "AliRun.h" |
0742d588 | 22 | #include "AliTrackReference.h" |
2d74ba4f | 23 | |
24 | // | |
25 | // Track Reference object is created every time particle is | |
26 | // crossing detector bounds. The object is created by Step Manager | |
27 | // | |
28 | // The class stores the following informations: | |
29 | // track label, | |
30 | // track position: X,Y,X | |
31 | // track momentum px, py, pz | |
32 | // track length and time of fligth: both in cm | |
33 | // status bits from Monte Carlo | |
34 | // | |
35 | ||
aab9c8d5 | 36 | |
37 | ClassImp(AliTrackReference) | |
38 | ||
e2afb3b6 | 39 | //_______________________________________________________________________ |
40 | AliTrackReference::AliTrackReference(): | |
41 | fTrack(0), | |
42 | fX(0), | |
43 | fY(0), | |
44 | fZ(0), | |
45 | fPx(0), | |
46 | fPy(0), | |
47 | fPz(0), | |
48 | fLength(0) | |
aab9c8d5 | 49 | { |
50 | // | |
51 | // Default constructor | |
2d74ba4f | 52 | // Creates empty object |
53 | ||
54 | for(Int_t i=0; i<16; i++) ResetBit(BIT(i)); | |
55 | } | |
56 | ||
57 | //_______________________________________________________________________ | |
2cad796f | 58 | AliTrackReference::AliTrackReference(Int_t label) { |
2d74ba4f | 59 | // |
60 | // Create Reference object out of label and | |
61 | // data in TVirtualMC object | |
62 | // | |
63 | // Creates an object and fill all parameters | |
64 | // from data in VirtualMC | |
aab9c8d5 | 65 | // |
2d74ba4f | 66 | // Sylwester Radomski, (S.Radomski@gsi.de) |
67 | // GSI, Jan 31, 2003 | |
68 | // | |
2cad796f | 69 | |
2d74ba4f | 70 | TLorentzVector vec; |
71 | ||
72 | fTrack = label; | |
2cad796f | 73 | fLength = gMC->TrackLength(); |
74 | fTime = gMC->TrackTime(); | |
2d74ba4f | 75 | |
2cad796f | 76 | gMC->TrackPosition(vec); |
2d74ba4f | 77 | |
78 | fX = vec[0]; | |
79 | fY = vec[1]; | |
80 | fZ = vec[2]; | |
81 | ||
2cad796f | 82 | gMC->TrackMomentum(vec); |
2d74ba4f | 83 | |
84 | fPx = vec[0]; | |
85 | fPy = vec[1]; | |
b745fc4c | 86 | fPz = vec[2]; |
2d74ba4f | 87 | |
88 | // Set Up status code | |
89 | // Copy Bits from virtual MC | |
90 | ||
91 | for(Int_t i=0; i<16; i++) ResetBit(BIT(i)); | |
92 | ||
2cad796f | 93 | SetBit(BIT(0), gMC->IsNewTrack()); |
94 | SetBit(BIT(1), gMC->IsTrackAlive()); | |
95 | SetBit(BIT(2), gMC->IsTrackDisappeared()); | |
96 | SetBit(BIT(3), gMC->IsTrackEntering()); | |
97 | SetBit(BIT(4), gMC->IsTrackExiting()); | |
98 | SetBit(BIT(5), gMC->IsTrackInside()); | |
99 | SetBit(BIT(6), gMC->IsTrackOut()); | |
100 | SetBit(BIT(7), gMC->IsTrackStop()); | |
aab9c8d5 | 101 | } |
2d74ba4f | 102 | //_______________________________________________________________________ |