[u/mrichter/AliRoot.git] / MUON / mapping / AliMpConstants.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

// $Id$
// $MpId: AliMpConstants.cxx,v 1.6 2005/08/26 15:43:36 ivana Exp $
// Category: basic
//
// Class AliMpConstants
// --------------------
// Class for globally used constants definition.
// Included in AliRoot: 2003/05/02
// Authors: David Guez, Ivana Hrivnacova; IPN Orsay

#include <TMath.h>
#include <TVector2.h>

#include "AliMpConstants.h"

ClassImp(AliMpConstants)

// static data
const Double_t AliMpConstants::fgkLengthTolerance = 1e-04; // 0.1 mum;
const Double_t AliMpConstants::fgkLengthStep = 1.; // 1 mm;
const Int_t    AliMpConstants::fgkStartPadIndex = 1;

//_____________________________________________________________________________
AliMpConstants::AliMpConstants()
  : TObject() 
{
/// Default constructor  
}

//_____________________________________________________________________________
AliMpConstants::~AliMpConstants() 
{
///Destructor
}

//_____________________________________________________________________________
Bool_t  AliMpConstants::IsEqual(Double_t length1, Double_t length2)
{
/// Compare lengths within the length tolerance.

  return TMath::Abs(length1 - length2) < fgkLengthTolerance;
}  


//_____________________________________________________________________________
Bool_t  AliMpConstants::IsEqual(const TVector2& v1, const TVector2& v2)
{
/// Compare x, y vector coordinates within the length tolerance.

  return (  TMath::Abs(v1.X() - v2.X()) 
          + TMath::Abs(v1.Y() - v2.Y())) < 2.*fgkLengthTolerance;
}
Commit	Line	Data
dee1d5f1	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
5f91c9e8	16	// $Id$
dee1d5f1	17	// $MpId: AliMpConstants.cxx,v 1.6 2005/08/26 15:43:36 ivana Exp $
5f91c9e8	18	// Category: basic
	19	//
	20	// Class AliMpConstants
	21	// --------------------
	22	// Class for globally used constants definition.
dbe945cc	23	// Included in AliRoot: 2003/05/02
5f91c9e8	24	// Authors: David Guez, Ivana Hrivnacova; IPN Orsay
	25
	26	#include <TMath.h>
2998a151	27	#include <TVector2.h>
5f91c9e8	28
	29	#include "AliMpConstants.h"
	30
	31	ClassImp(AliMpConstants)
	32
	33	// static data
	34	const Double_t AliMpConstants::fgkLengthTolerance = 1e-04; // 0.1 mum;
	35	const Double_t AliMpConstants::fgkLengthStep = 1.; // 1 mm;
	36	const Int_t AliMpConstants::fgkStartPadIndex = 1;
	37
	38	//_____________________________________________________________________________
	39	AliMpConstants::AliMpConstants()
dee1d5f1	40	: TObject()
	41	{
	42	/// Default constructor
5f91c9e8	43	}
	44
	45	//_____________________________________________________________________________
dee1d5f1	46	AliMpConstants::~AliMpConstants()
	47	{
	48	///Destructor
5f91c9e8	49	}
	50
	51	//_____________________________________________________________________________
	52	Bool_t AliMpConstants::IsEqual(Double_t length1, Double_t length2)
	53	{
dee1d5f1	54	/// Compare lengths within the length tolerance.
5f91c9e8	55
	56	return TMath::Abs(length1 - length2) < fgkLengthTolerance;
	57	}
	58
	59
	60	//_____________________________________________________________________________
	61	Bool_t AliMpConstants::IsEqual(const TVector2& v1, const TVector2& v2)
	62	{
dee1d5f1	63	/// Compare x, y vector coordinates within the length tolerance.
5f91c9e8	64
	65	return ( TMath::Abs(v1.X() - v2.X())
	66	+ TMath::Abs(v1.Y() - v2.Y())) < 2.*fgkLengthTolerance;
	67	}