MUON/mapping/AliMpConstants.cxx

   1 // $Id$
   2 // Category: basic
   3 //
   4 // Class AliMpConstants
   5 // --------------------
   6 // Class for globally used constants definition.
   7 //
   8 // Authors: David Guez, Ivana Hrivnacova; IPN Orsay
   9
  10 #include <TMath.h>
  11
  12 #include "AliMpConstants.h"
  13
  14 ClassImp(AliMpConstants)
  15
  16 // static data
  17 const Double_t AliMpConstants::fgkLengthTolerance = 1e-04; // 0.1 mum;
  18 const Double_t AliMpConstants::fgkLengthStep = 1.; // 1 mm;
  19 const Int_t    AliMpConstants::fgkStartPadIndex = 1;
  20
  21 //_____________________________________________________________________________
  22 AliMpConstants::AliMpConstants()
  23   : TObject() {
  24 //
  25 }
  26
  27 //_____________________________________________________________________________
  28 AliMpConstants::~AliMpConstants() {
  29 //
  30 }
  31
  32 //_____________________________________________________________________________
  33 Bool_t  AliMpConstants::IsEqual(Double_t length1, Double_t length2)
  34 {
  35 // Compares lengths within the length tolerance.
  36 // ---
  37
  38   return TMath::Abs(length1 - length2) < fgkLengthTolerance;
  39 }
  40
  41
  42 //_____________________________________________________________________________
  43 Bool_t  AliMpConstants::IsEqual(const TVector2& v1, const TVector2& v2)
  44 {
  45 // Compares x, y vector coordinates within the length tolerance.
  46 // ---
  47
  48   return (  TMath::Abs(v1.X() - v2.X())
  49           + TMath::Abs(v1.Y() - v2.Y())) < 2.*fgkLengthTolerance;
  50 }