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9582ea1a | 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 | ||
16 | //------------------------------------------------------------------------- | |
17 | // Implementation of the HLT ITS track class | |
18 | // | |
19 | // Origin: Cvetan Cheshkov, CERN, Cvetan.Cheshkov@cern.ch | |
20 | //------------------------------------------------------------------------- | |
21 | ||
22 | #include <TMath.h> | |
23 | ||
4aa41877 | 24 | #include "AliHLTITStrack.h" |
9582ea1a | 25 | |
4aa41877 | 26 | ClassImp(AliHLTITStrack) |
9582ea1a | 27 | |
28 | //____________________________________________________________________________ | |
4aa41877 | 29 | AliHLTITStrack::AliHLTITStrack() |
f644512a | 30 | :AliITStrackV2() |
9582ea1a | 31 | { |
32 | //------------------------------------------------------------------ | |
33 | //Constructor | |
34 | //------------------------------------------------------------------ | |
35 | } | |
36 | ||
37 | //____________________________________________________________________________ | |
4aa41877 | 38 | AliHLTITStrack::AliHLTITStrack(AliESDtrack& t) |
f644512a | 39 | :AliITStrackV2(t) |
9f91c2b5 | 40 | { |
9582ea1a | 41 | //------------------------------------------------------------------ |
f644512a | 42 | //Constructor |
9582ea1a | 43 | //------------------------------------------------------------------ |
9582ea1a | 44 | } |
45 | ||
46 | //____________________________________________________________________________ | |
4aa41877 | 47 | AliHLTITStrack::AliHLTITStrack(const AliHLTITStrack& t) |
f644512a | 48 | : AliITStrackV2(t) |
9f91c2b5 | 49 | { |
f644512a | 50 | //------------------------------------------------------------------ |
51 | //Copy constructor | |
52 | //------------------------------------------------------------------ | |
9582ea1a | 53 | } |
54 | ||
55 | //_____________________________________________________________________________ | |
4aa41877 | 56 | Int_t AliHLTITStrack::Compare(const TObject *o) const { |
9582ea1a | 57 | //----------------------------------------------------------------- |
58 | // This function compares tracks according to the their curvature | |
59 | //----------------------------------------------------------------- | |
4aa41877 | 60 | AliHLTITStrack *t=(AliHLTITStrack*)o; |
9582ea1a | 61 | Double_t co=TMath::Abs(t->Get1Pt()); |
62 | Double_t c =TMath::Abs(Get1Pt()); | |
63 | // Double_t co=t->GetSigmaY2()*t->GetSigmaZ2(); | |
64 | // Double_t c =GetSigmaY2()*GetSigmaZ2(); | |
65 | if (c>co) return 1; | |
66 | else if (c<co) return -1; | |
67 | return 0; | |
68 | } |