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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 | // $Id$ | |
17 | // $MpId: AliMpConstants.cxx,v 1.7 2005/10/28 15:09:13 ivana Exp $ | |
18 | // Category: basic | |
19 | // | |
20 | // Class AliMpConstants | |
21 | // -------------------- | |
22 | // Class for globally used constants definition. | |
23 | // Included in AliRoot: 2003/05/02 | |
24 | // Authors: David Guez, Ivana Hrivnacova; IPN Orsay | |
25 | ||
26 | #include <TMath.h> | |
27 | #include <TVector2.h> | |
28 | ||
29 | #include "AliMpConstants.h" | |
30 | ||
31 | ClassImp(AliMpConstants) | |
32 | ||
33 | // static data | |
34 | const Double_t AliMpConstants::fgkLengthTolerance = 1e-05; // 0.1 mum; | |
35 | const Double_t AliMpConstants::fgkLengthStep = 0.1; // 1 mm; | |
36 | const Int_t AliMpConstants::fgkStartPadIndex = 1; | |
37 | ||
38 | //_____________________________________________________________________________ | |
39 | AliMpConstants::AliMpConstants() | |
40 | : TObject() | |
41 | { | |
42 | /// Default constructor | |
43 | } | |
44 | ||
45 | //_____________________________________________________________________________ | |
46 | AliMpConstants::~AliMpConstants() | |
47 | { | |
48 | ///Destructor | |
49 | } | |
50 | ||
51 | //_____________________________________________________________________________ | |
52 | Bool_t AliMpConstants::IsEqual(Double_t length1, Double_t length2) | |
53 | { | |
54 | /// Compare lengths within the length tolerance. | |
55 | ||
56 | return TMath::Abs(length1 - length2) < fgkLengthTolerance; | |
57 | } | |
58 | ||
59 | ||
60 | //_____________________________________________________________________________ | |
61 | Bool_t AliMpConstants::IsEqual(const TVector2& v1, const TVector2& v2) | |
62 | { | |
63 | /// Compare x, y vector coordinates within the length tolerance. | |
64 | ||
65 | return ( TMath::Abs(v1.X() - v2.X()) | |
66 | + TMath::Abs(v1.Y() - v2.Y())) < 2.*fgkLengthTolerance; | |
67 | } |