[u/mrichter/AliRoot.git] / TRD / AliTRDtrackletWord.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: AliTRDtrackletWord.cxx 28397 2008-09-02 09:33:00Z cblume $ */

////////////////////////////////////////////////////////////////////////////
//                                                                        //
//  A tracklet word as from FEE                                           //
//                                                                        //
//  Author: J. Klein (Jochen.Klein@cern.ch)                               //
//                                                                        //
////////////////////////////////////////////////////////////////////////////

#include "AliTRDtrackletWord.h"
#include "AliTRDgeometry.h"
#include "AliTRDpadPlane.h"
#include "AliLog.h"

ClassImp(AliTRDtrackletWord)

AliTRDgeometry* AliTRDtrackletWord::fgGeo = new AliTRDgeometry;

AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord) :
  AliTRDtrackletBase(),
  fHCId(-1),
  fTrackletWord(trackletWord)
{ 

}

AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord, Int_t hcid) :
  AliTRDtrackletBase(),
  fHCId(hcid),
  fTrackletWord(trackletWord)
{ 

}

AliTRDtrackletWord::AliTRDtrackletWord(const AliTRDtrackletWord &rhs) :
  AliTRDtrackletBase(rhs),
  fHCId(rhs.fHCId),
  fTrackletWord(rhs.fTrackletWord)
{

}

AliTRDtrackletWord::~AliTRDtrackletWord() 
{

}

Int_t AliTRDtrackletWord::GetYbin() const {
  // returns (signed) value of Y
  if (fTrackletWord & 0x1000) {
    return -((~(fTrackletWord-1)) & 0x1fff);
  }
  else {
    return (fTrackletWord & 0x1fff);
  }
}

Int_t AliTRDtrackletWord::GetdY() const 
{
  // returns (signed) value of the deflection length
  if (fTrackletWord & (1 << 19)) {
    return -((~((fTrackletWord >> 13) - 1)) & 0x7f);
  }
  else {
    return ((fTrackletWord >> 13) & 0x7f);
  }
}

Int_t AliTRDtrackletWord::GetROB() const
{
  return 2 * (GetZbin() / 4) + (GetY() > 0 ? 1 : 0);
}

Int_t AliTRDtrackletWord::GetMCM() const
{
  AliTRDpadPlane *pp = fgGeo->GetPadPlane(GetDetector());
  return (((Int_t) ((GetY()) / pp->GetWidthIPad()) + 72) / 18) % 4
    + 4 * (GetZbin() % 4);
}
Commit	Line	Data
52c19022	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: AliTRDtrackletWord.cxx 28397 2008-09-02 09:33:00Z cblume $ */
	17
	18	////////////////////////////////////////////////////////////////////////////
	19	// //
	20	// A tracklet word as from FEE //
	21	// //
	22	// Author: J. Klein (Jochen.Klein@cern.ch) //
	23	// //
	24	////////////////////////////////////////////////////////////////////////////
	25
	26	#include "AliTRDtrackletWord.h"
85c32c86	27	#include "AliTRDgeometry.h"
f061fb9d	28	#include "AliTRDpadPlane.h"
52c19022	29	#include "AliLog.h"
	30
	31	ClassImp(AliTRDtrackletWord)
	32
85c32c86	33	AliTRDgeometry* AliTRDtrackletWord::fgGeo = new AliTRDgeometry;
85c32c86	34
52c19022	35	AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord) :
	36	AliTRDtrackletBase(),
	37	fHCId(-1),
	38	fTrackletWord(trackletWord)
	39	{
	40
	41	}
	42
	43	AliTRDtrackletWord::AliTRDtrackletWord(UInt_t trackletWord, Int_t hcid) :
	44	AliTRDtrackletBase(),
	45	fHCId(hcid),
	46	fTrackletWord(trackletWord)
	47	{
	48
	49	}
	50
	51	AliTRDtrackletWord::AliTRDtrackletWord(const AliTRDtrackletWord &rhs) :
	52	AliTRDtrackletBase(rhs),
	53	fHCId(rhs.fHCId),
	54	fTrackletWord(rhs.fTrackletWord)
	55	{
	56
	57	}
	58
	59	AliTRDtrackletWord::~AliTRDtrackletWord()
	60	{
	61
	62	}
	63
	64	Int_t AliTRDtrackletWord::GetYbin() const {
	65	// returns (signed) value of Y
	66	if (fTrackletWord & 0x1000) {
	67	return -((~(fTrackletWord-1)) & 0x1fff);
	68	}
	69	else {
	70	return (fTrackletWord & 0x1fff);
	71	}
	72	}
	73
	74	Int_t AliTRDtrackletWord::GetdY() const
	75	{
	76	// returns (signed) value of the deflection length
	77	if (fTrackletWord & (1 << 19)) {
	78	return -((~((fTrackletWord >> 13) - 1)) & 0x7f);
	79	}
	80	else {
	81	return ((fTrackletWord >> 13) & 0x7f);
	82	}
	83	}
f061fb9d	84
	85	Int_t AliTRDtrackletWord::GetROB() const
	86	{
	87	return 2 * (GetZbin() / 4) + (GetY() > 0 ? 1 : 0);
	88	}
	89
	90	Int_t AliTRDtrackletWord::GetMCM() const
	91	{
	92	AliTRDpadPlane *pp = fgGeo->GetPadPlane(GetDetector());
	93	return (((Int_t) ((GetY()) / pp->GetWidthIPad()) + 72) / 18) % 4
	94	+ 4 * (GetZbin() % 4);
	95	}
	96