TTTrack_TrackWord Class Reference

#include <TTTrack_TrackWord.h>

Inheritance diagram for TTTrack_TrackWord:

Public Member Functions
unsigned int	get_BendChi2Bits ()
unsigned int	get_chi2Bits ()
unsigned int	get_d0Bits ()
unsigned int	get_etaBits ()
unsigned int	get_hitPattern ()
float	get_iBendChi2 ()
float	get_ichi2 ()
float	get_id0 ()
float	get_ieta ()
float	get_iphi ()
float	get_iRinv ()
unsigned int	get_ispare ()
float	get_iz0 ()
unsigned int	get_phiBits ()
unsigned int	get_RinvBits ()
unsigned int	get_z0Bits ()
TTTrack_TrackWord &	operator= (const TTTrack_TrackWord &word)
void	setTrackWord (const GlobalVector &Momentum, const GlobalPoint &POCA, double theRinv, double theChi2, double theBendChi2, unsigned int theHitPattern, unsigned int iSpare)
void	setTrackWord (unsigned int theRinv, unsigned int phi0, unsigned int tanl, unsigned int z0, unsigned int d0, unsigned int theChi2, unsigned int theBendChi2, unsigned int theHitPattern, unsigned int iSpare)
	TTTrack_TrackWord ()
	TTTrack_TrackWord (const GlobalVector &Momentum, const GlobalPoint &POCA, double theRinv, double theChi2, double theBendChi2, unsigned int theHitPattern, unsigned int iSpare)
	TTTrack_TrackWord (unsigned int theRinv, unsigned int phi0, unsigned int tanl, unsigned int z0, unsigned int d0, unsigned int theChi2, unsigned int theBendChi2, unsigned int theHitPattern, unsigned int iSpare)
	TTTrack_TrackWord (const TTTrack_TrackWord &word)
unsigned int	unpack_hitPattern ()
float	unpack_iBendChi2 ()
float	unpack_ichi2 ()
float	unpack_id0 ()
float	unpack_ieta ()
float	unpack_iphi ()
float	unpack_iRinv ()
unsigned int	unpack_ispare ()
float	unpack_iz0 ()

Private Member Functions
unsigned int	digitize_Signed (float var, unsigned int maxBit, unsigned int minBit, float lsb)
void	initialize ()
float	unpack_Signed (unsigned int bits, unsigned int nBits, float lsb)

Private Attributes
float	Bchi2Bins [8]
float	chi2Bins [16]
unsigned int	iBendChi2
unsigned int	ichi2
unsigned int	id0
unsigned int	ieta
unsigned int	iHitPattern
unsigned int	iphi
unsigned int	iRinv
unsigned int	ispare
unsigned int	iz0
const float	maxCurv = 0.5
const float	maxD0 = 15.
const float	maxEta = 2.5
const float	maxPhi = 0.35
const float	maxZ0 = 20.
unsigned int	NBchi2
const unsigned int	NBChi2Bits = 3
unsigned int	Nchi2
const unsigned int	NChi2Bits = 4
const unsigned int	NCurvBits = 14
const unsigned int	ND0Bits = 12
const unsigned int	NEtaBits = 15
const unsigned int	NHitsBits = 7
const unsigned int	NPhiBits = 11
const unsigned int	NSpareBits = 14
const unsigned int	NZ0Bits = 11
unsigned int	TrackWord1
unsigned int	TrackWord2
unsigned int	TrackWord3
float	valLSBCurv
float	valLSBD0
float	valLSBEta
float	valLSBPhi
float	valLSBZ0

Detailed Description

Definition at line 19 of file TTTrack_TrackWord.h.

Constructor & Destructor Documentation

TTTrack_TrackWord::TTTrack_TrackWord ( )

inline

Definition at line 23 of file TTTrack_TrackWord.h.

References HLTMuonOfflineAnalyzer_cfi::d0, get_BendChi2Bits(), get_chi2Bits(), get_d0Bits(), get_etaBits(), get_hitPattern(), get_iBendChi2(), get_ichi2(), get_id0(), get_ieta(), get_iphi(), get_iRinv(), get_ispare(), get_iz0(), get_phiBits(), get_RinvBits(), get_z0Bits(), setTrackWord(), unpack_hitPattern(), unpack_iBendChi2(), unpack_ichi2(), unpack_id0(), unpack_ieta(), unpack_iphi(), unpack_iRinv(), unpack_ispare(), unpack_iz0(), and HLTMuonOfflineAnalyzer_cfi::z0.

{}

TTTrack_TrackWord::TTTrack_TrackWord	(	const GlobalVector &	Momentum,
		const GlobalPoint &	POCA,
		double	theRinv,
		double	theChi2,
		double	theBendChi2,
		unsigned int	theHitPattern,
		unsigned int	iSpare
	)

Definition at line 18 of file TTTrack_TrackWord.cc.

References setTrackWord().

                                                          {
  setTrackWord(Momentum, POCA, theRinv, theChi2, theBendChi2, theHitPattern, iSpare);
}

TTTrack_TrackWord::TTTrack_TrackWord	(	unsigned int	theRinv,
		unsigned int	phi0,
		unsigned int	tanl,
		unsigned int	z0,
		unsigned int	d0,
		unsigned int	theChi2,
		unsigned int	theBendChi2,
		unsigned int	theHitPattern,
		unsigned int	iSpare
	)

Definition at line 28 of file TTTrack_TrackWord.cc.

References initialize().

    : iRinv(theRinv),
      iphi(phi0),
      ieta(eta),
      iz0(z0),
      id0(d0),
      ichi2(theChi2),          //revert to other packing?  Or will be unpacked wrong
      iBendChi2(theBendChi2),  // revert to ogher packing? Or will be unpacked wrong
      ispare(iSpare),
      iHitPattern(theHitPattern) {
  initialize();
}

TTTrack_TrackWord::TTTrack_TrackWord ( const TTTrack_TrackWord &  word )

inline

Definition at line 100 of file TTTrack_TrackWord.h.

References iBendChi2, ichi2, id0, ieta, iHitPattern, initialize(), iphi, iRinv, ispare, iz0, TrackWord1, TrackWord2, and TrackWord3.

                                                   {
    initialize();

    iRinv = word.iRinv;
    iphi = word.iphi;
    ieta = word.ieta;
    iz0 = word.iz0;
    id0 = word.id0;
    ichi2 = word.ichi2;
    iBendChi2 = word.iBendChi2;
    ispare = word.ispare;
    iHitPattern = word.iHitPattern;

    // three 32-bit packed words
    TrackWord1 = word.TrackWord1;
    TrackWord2 = word.TrackWord2;
    TrackWord3 = word.TrackWord3;
  }

Member Function Documentation

unsigned int TTTrack_TrackWord::digitize_Signed ( float  var, unsigned int  maxBit, unsigned int  minBit, float  lsb  )

private

Definition at line 307 of file TTTrack_TrackWord.cc.

Referenced by operator=(), and setTrackWord().

                                                                                                              {
  unsigned int nBits = (maxBit - minBit + 1);
  unsigned int myVar = std::floor(fabs(var) / lsb);
  unsigned int maxVal = (1 << (nBits - 1)) - 1;
  if (myVar > maxVal)
    myVar = maxVal;
  if (var < 0)
    myVar = (1 << nBits) - myVar;  // two's complement encoding
  unsigned int seg = myVar;
  return seg;
}

unsigned int TTTrack_TrackWord::get_BendChi2Bits

(

)

Definition at line 295 of file TTTrack_TrackWord.cc.

References bits, and TrackWord3.

Referenced by TTTrack_TrackWord().

                                                 {
  unsigned int bits = (TrackWord3 & 0x0001C000) >> 14;
  return bits;
}

unsigned int TTTrack_TrackWord::get_chi2Bits

(

)

Definition at line 229 of file TTTrack_TrackWord.cc.

References ichi2.

Referenced by TTTrack_TrackWord().

                                             {
  //unsigned int bits = (TrackWord1 & 0x0000000F);
  return ichi2;
}

unsigned int TTTrack_TrackWord::get_d0Bits

(

)

Definition at line 261 of file TTTrack_TrackWord.cc.

References id0.

Referenced by TTTrack_TrackWord().

                                           {
  //  unsigned int bits =   (TrackWord2 & 0x000FFF80) >> 7;
  return id0;
}

unsigned int TTTrack_TrackWord::get_etaBits

(

)

Definition at line 197 of file TTTrack_TrackWord.cc.

References ieta.

Referenced by TTTrack_TrackWord().

                                            {
  //unsigned int bits =  (TrackWord1 & 0xFFFF0000) >> 16;
  return ieta;
}

unsigned int TTTrack_TrackWord::get_hitPattern

(

)

Definition at line 271 of file TTTrack_TrackWord.cc.

References iHitPattern.

Referenced by TTTrack_TrackWord().

{ return iHitPattern; }

float TTTrack_TrackWord::get_iBendChi2

(

)

Definition at line 290 of file TTTrack_TrackWord.cc.

References Bchi2Bins, and iBendChi2.

Referenced by TTTrack_TrackWord().

                                       {
  float unpBChi2 = Bchi2Bins[iBendChi2];
  return unpBChi2;
}

float TTTrack_TrackWord::get_ichi2

(

)

Definition at line 224 of file TTTrack_TrackWord.cc.

References chi2Bins, and ichi2.

Referenced by TTTrack_TrackWord().

                                   {
  float unpChi2 = chi2Bins[ichi2];
  return unpChi2;
}

float TTTrack_TrackWord::get_id0

(

)

Definition at line 256 of file TTTrack_TrackWord.cc.

References id0, ND0Bits, unpack_Signed(), and valLSBD0.

Referenced by TTTrack_TrackWord().

                                 {
  float unpD0 = unpack_Signed(id0, ND0Bits, valLSBD0);
  return unpD0;
}

float TTTrack_TrackWord::get_ieta

(

)

Definition at line 192 of file TTTrack_TrackWord.cc.

References ieta, NEtaBits, unpack_Signed(), and valLSBEta.

Referenced by TTTrack_TrackWord().

                                  {
  float unpEta = unpack_Signed(ieta, NEtaBits, valLSBEta);
  return unpEta;
}

float TTTrack_TrackWord::get_iphi

(

)

Definition at line 240 of file TTTrack_TrackWord.cc.

References iphi, NPhiBits, unpack_Signed(), and valLSBPhi.

Referenced by TTTrack_TrackWord().

                                  {
  float unpPhi = unpack_Signed(iphi, NPhiBits, valLSBPhi);
  return unpPhi;
}

float TTTrack_TrackWord::get_iRinv

(

)

Definition at line 279 of file TTTrack_TrackWord.cc.

References iRinv, NCurvBits, unpack_Signed(), and valLSBCurv.

Referenced by TTTrack_TrackWord().

                                   {
  float unpCurv = unpack_Signed(iRinv, NCurvBits, valLSBCurv);
  return unpCurv;
}

unsigned int TTTrack_TrackWord::get_ispare

(

)

Definition at line 305 of file TTTrack_TrackWord.cc.

References ispare.

Referenced by TTTrack_TrackWord().

{ return ispare; }

float TTTrack_TrackWord::get_iz0

(

)

Definition at line 208 of file TTTrack_TrackWord.cc.

References iz0, NZ0Bits, unpack_Signed(), and valLSBZ0.

Referenced by TTTrack_TrackWord().

                                 {
  float unpZ0 = unpack_Signed(iz0, NZ0Bits, valLSBZ0);
  return unpZ0;
}

unsigned int TTTrack_TrackWord::get_phiBits

(

)

Definition at line 245 of file TTTrack_TrackWord.cc.

References iphi.

Referenced by TTTrack_TrackWord().

                                            {
  //unsigned int bits =   (TrackWord2 & 0xFFF00000) >> 20;
  return iphi;
}

unsigned int TTTrack_TrackWord::get_RinvBits

(

)

Referenced by TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::get_z0Bits

(

)

Definition at line 213 of file TTTrack_TrackWord.cc.

References iz0.

Referenced by TTTrack_TrackWord().

                                           {
  //unsigned int bits =   (TrackWord1 & 0x0000FFF0) >> 4;
  return iz0;
}

void TTTrack_TrackWord::initialize ( )

private

Definition at line 331 of file TTTrack_TrackWord.cc.

References Bchi2Bins, chi2Bins, HLT_2018_cff::etaBins, dqmMemoryStats::float, maxCurv, maxD0, maxEta, maxPhi, maxZ0, NBchi2, NBChi2Bits, Nchi2, NChi2Bits, NCurvBits, ND0Bits, NEtaBits, NPhiBits, NZ0Bits, valLSBCurv, valLSBD0, valLSBEta, valLSBPhi, and valLSBZ0.

Referenced by operator=(), setTrackWord(), and TTTrack_TrackWord().

                                   {
  /* bits for packing, constants defined in TTTrack_TrackWord.h :

  signed quantities (one bit for sign):
  
  q/R = 14+1
  phi = 11+1  (relative to sector center)
  eta = 15+1
  z0  = 11+1
  d0  = 12+1

  unsigned:

  chi2     = 4
  BendChi2 = 3
  hitPattern  = 7
  Spare    = 14

  */

  // define bits, 1<<N = 2^N

  unsigned int CurvBins = (1 << NCurvBits);
  unsigned int phiBins = (1 << NPhiBits);
  unsigned int etaBins = (1 << NEtaBits);
  unsigned int z0Bins = (1 << NZ0Bits);
  unsigned int d0Bins = (1 << ND0Bits);

  Nchi2 = (1 << NChi2Bits);
  NBchi2 = (1 << NBChi2Bits);

  valLSBCurv = maxCurv / float(CurvBins);
  valLSBPhi = maxPhi / float(phiBins);
  valLSBEta = maxEta / float(etaBins);
  valLSBZ0 = maxZ0 / float(z0Bins);
  valLSBD0 = maxD0 / float(d0Bins);

  chi2Bins[0] = 0.25;
  chi2Bins[1] = 0.5;
  chi2Bins[2] = 1.0;
  chi2Bins[3] = 2.;
  chi2Bins[4] = 3.;
  chi2Bins[5] = 5.;
  chi2Bins[6] = 7.;
  chi2Bins[7] = 10.;
  chi2Bins[8] = 15.;
  chi2Bins[9] = 20.;
  chi2Bins[10] = 40.;
  chi2Bins[11] = 60.;
  chi2Bins[12] = 100.;
  chi2Bins[13] = 200.;
  chi2Bins[14] = 500.;

  Bchi2Bins[0] = 0.5;
  Bchi2Bins[1] = 1.25;
  Bchi2Bins[2] = 2.0;
  Bchi2Bins[3] = 3.0;
  Bchi2Bins[4] = 5.0;
  Bchi2Bins[5] = 10.;
  Bchi2Bins[6] = 50.;
};

TTTrack_TrackWord& TTTrack_TrackWord::operator= ( const TTTrack_TrackWord &  word )

inline

Definition at line 119 of file TTTrack_TrackWord.h.

References bits, digitize_Signed(), iBendChi2, ichi2, id0, ieta, iHitPattern, initialize(), iphi, iRinv, ispare, iz0, TrackWord1, TrackWord2, TrackWord3, unpack_Signed(), and trigObjTnPSource_cfi::var.

                                                              {
    initialize();
    iRinv = word.iRinv;
    iphi = word.iphi;
    ieta = word.ieta;
    iz0 = word.iz0;
    id0 = word.id0;
    ichi2 = word.ichi2;
    iBendChi2 = word.iBendChi2;
    ispare = word.ispare;
    iHitPattern = word.iHitPattern;

    // three 32-bit packed words
    TrackWord1 = word.TrackWord1;
    TrackWord2 = word.TrackWord2;
    TrackWord3 = word.TrackWord3;

    return *this;
  }

void TTTrack_TrackWord::setTrackWord	(	const GlobalVector &	Momentum,
		const GlobalPoint &	POCA,
		double	theRinv,
		double	theChi2,
		double	theBendChi2,
		unsigned int	theHitPattern,
		unsigned int	iSpare
	)

Definition at line 74 of file TTTrack_TrackWord.cc.

References Bchi2Bins, chi2Bins, digitize_Signed(), PV3DBase< T, PVType, FrameType >::eta(), iBendChi2, ichi2, id0, ieta, iHitPattern, initialize(), iphi, iRinv, ispare, iz0, NBchi2, Nchi2, NCurvBits, ND0Bits, NEtaBits, NPhiBits, NZ0Bits, PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), TrackWord1, TrackWord2, TrackWord3, valLSBCurv, valLSBD0, valLSBEta, valLSBPhi, valLSBZ0, and PV3DBase< T, PVType, FrameType >::z().

Referenced by TTTrack< T >::setTrackWordBits(), and TTTrack_TrackWord().

                                                          {
  initialize();

  // first, derive quantities to be packed

  float rPhi = Momentum.phi();  // this needs to be phi relative to center of sector ****
  float rEta = Momentum.eta();
  float rZ0 = POCA.z();
  float rD0 = POCA.perp();

  // bin, convert to integers, and pack

  unsigned int seg1, seg2, seg3;
  seg1 = 0;
  seg2 = 0;
  seg3 = 0;

  //eta

  ieta = digitize_Signed(rEta, NEtaBits, 0, valLSBEta);

  //z0
  iz0 = digitize_Signed(rZ0, NZ0Bits, 0, valLSBZ0);

  //chi2 has non-linear bins

  ichi2 = 0;

  for (unsigned int ibin = 0; ibin < Nchi2; ++ibin) {
    ichi2 = ibin;
    if (theChi2 < chi2Bins[ibin])
      break;
  }

  //phi
  iphi = digitize_Signed(rPhi, NPhiBits, 0, valLSBPhi);

  //d0
  id0 = digitize_Signed(rD0, ND0Bits, 0, valLSBD0);

  //Rinv
  iRinv = digitize_Signed(theRinv, NCurvBits, 0, valLSBCurv);

  //bend chi2 - non-linear bins
  iBendChi2 = 0;

  for (unsigned int ibin = 0; ibin < NBchi2; ++ibin) {
    iBendChi2 = ibin;
    if (theBendChi2 < Bchi2Bins[ibin])
      break;
  }

  ispare = iSpare;

  // spare bits
  if (ispare > 0x3FFF)
    ispare = 0x3FFF;

  iHitPattern = theHitPattern;

  //set bits
  /*
    Current packing scheme. Any changes here ripple everywhere!
    
    uint word1 = 16 (eta) + 12 (z0) + 4 (chi2) = 32 bits
    uint word2 = 12 (phi) + 13 (d0) + 7 (hitPattern) = 32 bits
    uint word3 = 15 (pT) + 3 (bend chi2) + 14 (spare/TMVA) = 32 bits
   */

  //now pack bits; leave hardcoded for now as am example of how this could work

  seg1 = (ieta << 16);  //take care of word packing later...
  seg2 = (iz0 << 4);
  seg3 = ichi2;

  //set bits

  TrackWord1 = seg1 + seg2 + seg3;
  seg1 = 0;
  seg2 = 0;
  seg3 = 0;

  //second 32-bit word
  seg1 = (iphi << 20);
  seg2 = (id0 << 7);

  //HitMask
  seg3 = theHitPattern;

  //set bits

  TrackWord2 = seg1 + seg2 + seg3;
  seg1 = 0;
  seg2 = 0;
  seg3 = 0;

  //third 32-bit word

  seg1 = (iRinv << 17);
  seg2 = (iBendChi2 << 14);
  seg3 = ispare;

  TrackWord3 = seg1 + seg2 + seg3;
}

void TTTrack_TrackWord::setTrackWord	(	unsigned int	theRinv,
		unsigned int	phi0,
		unsigned int	tanl,
		unsigned int	z0,
		unsigned int	d0,
		unsigned int	theChi2,
		unsigned int	theBendChi2,
		unsigned int	theHitPattern,
		unsigned int	iSpare
	)

Definition at line 51 of file TTTrack_TrackWord.cc.

References HLTMuonOfflineAnalyzer_cfi::d0, PVValHelper::eta, iBendChi2, ichi2, id0, ieta, iHitPattern, initialize(), iphi, iRinv, ispare, iz0, and HLTMuonOfflineAnalyzer_cfi::z0.

                                                          {
  iRinv = theRinv;
  iphi = phi0;
  ieta = eta;
  iz0 = z0;
  id0 = d0;
  ichi2 = theChi2;          //revert to other packing?  Or will be unpacked wrong
  iBendChi2 = theBendChi2;  // revert to ogher packing? Or will be unpacked wrong
  ispare = iSpare;
  iHitPattern = theHitPattern;

  initialize();
}

unsigned int TTTrack_TrackWord::unpack_hitPattern

(

)

Definition at line 266 of file TTTrack_TrackWord.cc.

References bits, and TrackWord2.

Referenced by TTTrack_TrackWord().

                                                  {
  unsigned int bits = (TrackWord2 & 0x0000007F);
  return bits;
}

float TTTrack_TrackWord::unpack_iBendChi2

(

)

Definition at line 284 of file TTTrack_TrackWord.cc.

References Bchi2Bins, bits, and TrackWord3.

Referenced by TTTrack_TrackWord().

                                          {
  unsigned int bits = (TrackWord3 & 0x0001C000) >> 14;
  float unpBChi2 = Bchi2Bins[bits];
  return unpBChi2;
}

float TTTrack_TrackWord::unpack_ichi2

(

)

Definition at line 218 of file TTTrack_TrackWord.cc.

References bits, chi2Bins, and TrackWord1.

Referenced by TTTrack_TrackWord().

                                      {
  unsigned int bits = (TrackWord1 & 0x0000000F);
  float unpChi2 = chi2Bins[bits];
  return unpChi2;
}

float TTTrack_TrackWord::unpack_id0

(

)

Definition at line 250 of file TTTrack_TrackWord.cc.

References bits, ND0Bits, TrackWord2, unpack_Signed(), and valLSBD0.

Referenced by TTTrack_TrackWord().

                                    {
  unsigned int bits = (TrackWord2 & 0x000FFF80) >> 7;
  float unpD0 = unpack_Signed(bits, ND0Bits, valLSBD0);
  return unpD0;
}

float TTTrack_TrackWord::unpack_ieta

(

)

Definition at line 186 of file TTTrack_TrackWord.cc.

References bits, NEtaBits, TrackWord1, unpack_Signed(), and valLSBEta.

Referenced by TTTrack_TrackWord().

                                     {
  unsigned int bits = (TrackWord1 & 0xFFFF0000) >> 16;
  float unpEta = unpack_Signed(bits, NEtaBits, valLSBEta);
  return unpEta;
}

float TTTrack_TrackWord::unpack_iphi

(

)

Definition at line 234 of file TTTrack_TrackWord.cc.

References bits, NPhiBits, TrackWord2, unpack_Signed(), and valLSBPhi.

Referenced by TTTrack_TrackWord().

                                     {
  unsigned int bits = (TrackWord2 & 0xFFF00000) >> 20;
  float unpPhi = unpack_Signed(bits, NPhiBits, valLSBPhi);
  return unpPhi;
}

float TTTrack_TrackWord::unpack_iRinv

(

)

Definition at line 273 of file TTTrack_TrackWord.cc.

References bits, NCurvBits, TrackWord3, unpack_Signed(), and valLSBCurv.

Referenced by TTTrack_TrackWord().

                                      {
  unsigned int bits = (TrackWord3 & 0xFFFE0000) >> 17;
  float unpCurv = unpack_Signed(bits, NCurvBits, valLSBCurv);
  return unpCurv;
}

unsigned int TTTrack_TrackWord::unpack_ispare

(

)

Definition at line 300 of file TTTrack_TrackWord.cc.

References bits, and TrackWord3.

Referenced by TTTrack_TrackWord().

                                              {
  unsigned int bits = (TrackWord3 & 0x00003FFF);
  return bits;
}

float TTTrack_TrackWord::unpack_iz0

(

)

Definition at line 202 of file TTTrack_TrackWord.cc.

References bits, NZ0Bits, TrackWord1, unpack_Signed(), and valLSBZ0.

Referenced by TTTrack_TrackWord().

                                    {
  unsigned int bits = (TrackWord1 & 0x0000FFF0) >> 4;
  float unpZ0 = unpack_Signed(bits, NZ0Bits, valLSBZ0);
  return unpZ0;
}

float TTTrack_TrackWord::unpack_Signed ( unsigned int  bits, unsigned int  nBits, float  lsb  )

private

Definition at line 319 of file TTTrack_TrackWord.cc.

References bits, and dqmMemoryStats::float.

Referenced by get_id0(), get_ieta(), get_iphi(), get_iRinv(), get_iz0(), operator=(), unpack_id0(), unpack_ieta(), unpack_iphi(), unpack_iRinv(), and unpack_iz0().

                                                                                       {
  int isign = 1;
  unsigned int maxVal = (1 << nBits) - 1;
  if (bits & (1 << nBits)) {  //check sign
    isign = -1;
    bits = (1 << (nBits + 1)) - bits;  // if negative, flip everything for two's complement encoding
  }
  float unpacked = (float(bits & maxVal) + 0.5) * lsb;
  unpacked = isign * unpacked;
  return unpacked;
}

Member Data Documentation

float TTTrack_TrackWord::Bchi2Bins[8]

private

Definition at line 172 of file TTTrack_TrackWord.h.

Referenced by get_iBendChi2(), initialize(), setTrackWord(), and unpack_iBendChi2().

float TTTrack_TrackWord::chi2Bins[16]

private

Definition at line 171 of file TTTrack_TrackWord.h.

Referenced by get_ichi2(), initialize(), setTrackWord(), and unpack_ichi2().

unsigned int TTTrack_TrackWord::iBendChi2

private

Definition at line 153 of file TTTrack_TrackWord.h.

Referenced by get_iBendChi2(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::ichi2

private

Definition at line 152 of file TTTrack_TrackWord.h.

Referenced by get_chi2Bits(), get_ichi2(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::id0

private

Definition at line 151 of file TTTrack_TrackWord.h.

Referenced by get_d0Bits(), get_id0(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::ieta

private

Definition at line 149 of file TTTrack_TrackWord.h.

Referenced by get_etaBits(), get_ieta(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::iHitPattern

private

Definition at line 155 of file TTTrack_TrackWord.h.

Referenced by get_hitPattern(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::iphi

private

Definition at line 148 of file TTTrack_TrackWord.h.

Referenced by get_iphi(), get_phiBits(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::iRinv

private

Definition at line 147 of file TTTrack_TrackWord.h.

Referenced by get_iRinv(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::ispare

private

Definition at line 154 of file TTTrack_TrackWord.h.

Referenced by get_ispare(), operator=(), setTrackWord(), and TTTrack_TrackWord().

unsigned int TTTrack_TrackWord::iz0

private

Definition at line 150 of file TTTrack_TrackWord.h.

Referenced by get_iz0(), get_z0Bits(), operator=(), setTrackWord(), and TTTrack_TrackWord().

const float TTTrack_TrackWord::maxCurv = 0.5

private

Definition at line 208 of file TTTrack_TrackWord.h.

Referenced by initialize().

const float TTTrack_TrackWord::maxD0 = 15.

private

Definition at line 212 of file TTTrack_TrackWord.h.

Referenced by initialize().

const float TTTrack_TrackWord::maxEta = 2.5

private

Definition at line 210 of file TTTrack_TrackWord.h.

Referenced by initialize().

const float TTTrack_TrackWord::maxPhi = 0.35

private

Definition at line 209 of file TTTrack_TrackWord.h.

Referenced by initialize().

const float TTTrack_TrackWord::maxZ0 = 20.

private

Definition at line 211 of file TTTrack_TrackWord.h.

Referenced by initialize().

unsigned int TTTrack_TrackWord::NBchi2

private

Definition at line 175 of file TTTrack_TrackWord.h.

Referenced by initialize(), and setTrackWord().

const unsigned int TTTrack_TrackWord::NBChi2Bits = 3

private

Definition at line 203 of file TTTrack_TrackWord.h.

Referenced by initialize().

unsigned int TTTrack_TrackWord::Nchi2

private

Definition at line 174 of file TTTrack_TrackWord.h.

Referenced by initialize(), and setTrackWord().

const unsigned int TTTrack_TrackWord::NChi2Bits = 4

private

Definition at line 202 of file TTTrack_TrackWord.h.

Referenced by initialize().

const unsigned int TTTrack_TrackWord::NCurvBits = 14

private

Definition at line 195 of file TTTrack_TrackWord.h.

Referenced by get_iRinv(), initialize(), setTrackWord(), and unpack_iRinv().

const unsigned int TTTrack_TrackWord::ND0Bits = 12

private

Definition at line 199 of file TTTrack_TrackWord.h.

Referenced by get_id0(), initialize(), setTrackWord(), and unpack_id0().

const unsigned int TTTrack_TrackWord::NEtaBits = 15

private

Definition at line 197 of file TTTrack_TrackWord.h.

Referenced by get_ieta(), initialize(), setTrackWord(), and unpack_ieta().

const unsigned int TTTrack_TrackWord::NHitsBits = 7

private

Definition at line 204 of file TTTrack_TrackWord.h.

const unsigned int TTTrack_TrackWord::NPhiBits = 11

private

Definition at line 196 of file TTTrack_TrackWord.h.

Referenced by get_iphi(), initialize(), setTrackWord(), and unpack_iphi().

const unsigned int TTTrack_TrackWord::NSpareBits = 14

private

Definition at line 205 of file TTTrack_TrackWord.h.

const unsigned int TTTrack_TrackWord::NZ0Bits = 11

private

Definition at line 198 of file TTTrack_TrackWord.h.

Referenced by get_iz0(), initialize(), setTrackWord(), and unpack_iz0().

unsigned int TTTrack_TrackWord::TrackWord1

private

Definition at line 159 of file TTTrack_TrackWord.h.

Referenced by operator=(), setTrackWord(), TTTrack_TrackWord(), unpack_ichi2(), unpack_ieta(), and unpack_iz0().

unsigned int TTTrack_TrackWord::TrackWord2

private

Definition at line 160 of file TTTrack_TrackWord.h.

Referenced by operator=(), setTrackWord(), TTTrack_TrackWord(), unpack_hitPattern(), unpack_id0(), and unpack_iphi().

unsigned int TTTrack_TrackWord::TrackWord3

private

Definition at line 161 of file TTTrack_TrackWord.h.

Referenced by get_BendChi2Bits(), operator=(), setTrackWord(), TTTrack_TrackWord(), unpack_iBendChi2(), unpack_iRinv(), and unpack_ispare().

float TTTrack_TrackWord::valLSBCurv

private

Definition at line 165 of file TTTrack_TrackWord.h.

Referenced by get_iRinv(), initialize(), setTrackWord(), and unpack_iRinv().

float TTTrack_TrackWord::valLSBD0

private

Definition at line 169 of file TTTrack_TrackWord.h.

Referenced by get_id0(), initialize(), setTrackWord(), and unpack_id0().

float TTTrack_TrackWord::valLSBEta

private

Definition at line 167 of file TTTrack_TrackWord.h.

Referenced by get_ieta(), initialize(), setTrackWord(), and unpack_ieta().

float TTTrack_TrackWord::valLSBPhi

private

Definition at line 166 of file TTTrack_TrackWord.h.

Referenced by get_iphi(), initialize(), setTrackWord(), and unpack_iphi().

float TTTrack_TrackWord::valLSBZ0

private

Definition at line 168 of file TTTrack_TrackWord.h.

Referenced by get_iz0(), initialize(), setTrackWord(), and unpack_iz0().