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//--------------------------------------------------------------------------------------------------
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// $Id: PixelHit.h,v 1.1 2009/09/25 08:39:10 loizides Exp $
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//
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// PixelHit
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//
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// PixelHit class implemented as a point in space holding fit error and additional information.
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//
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// Authors: C.Loizides
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//--------------------------------------------------------------------------------------------------
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#ifndef MITANA_DATATREE_PIXELHIT_H
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#define MITANA_DATATREE_PIXELHIT_H
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#include "MitCommon/DataFormats/interface/Vect3.h"
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#include "MitAna/DataTree/interface/DataObject.h"
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#include <TMath.h>
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namespace mithep
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{
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class PixelHit : public DataObject
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{
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public:
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enum EType {
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kUnknown=0,
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kBLayer1=1,
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kBLayer2=2,
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kBLayer3=3,
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kFNegDisk1=-11,
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kFPosDisk1=+11,
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kFNegDisk2=-12,
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kFPosDisk2=+12
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};
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class Packing { //adapted from SiPixelRecHitQuality
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public:
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Packing();
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typedef UInt_t QualWordType;
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inline Bool_t IsOnEdge(QualWordType qualWord) const {
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return (qualWord >> fEdge_shift) & fEdge_mask;
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}
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inline Bool_t HasBadPixels(QualWordType qualWord) const {
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return (qualWord >> fBad_shift) & fBad_mask;
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}
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inline Bool_t HasFilledProb(QualWordType qualWord) const {
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return (qualWord >> fHasFilledProb_shift) & fHasFilledProb_mask;
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}
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inline Float_t ProbabilityX(QualWordType qualWord) const {
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Int_t raw = (qualWord >> fProbX_shift) & fProbX_mask;
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assert(raw>=0 && raw <=2047);
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Float_t prob = 0;
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if (raw==2047) prob = 0;
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else prob = TMath::Power(fProbX_units,-raw) ;
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return prob;
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}
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inline Float_t ProbabilityY(QualWordType qualWord) const {
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Int_t raw = (qualWord >> fProbY_shift) & fProbY_mask;
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assert(raw>=0 && raw <=2047);
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Float_t prob = 0;
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if (raw==2047) prob = 0;
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else prob = TMath::Power(fProbY_units,-raw) ;
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return prob;
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}
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inline Int_t QBin(QualWordType qualWord) const {
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Int_t qbin = (qualWord >> fQBin_shift) & fQBin_mask;
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assert(qbin>=0 && qbin <=7);
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return qbin;
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}
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inline Bool_t SpansTwoROCs(QualWordType qualWord) const {
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return (qualWord >> fTwoROC_shift) & fTwoROC_mask;
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}
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protected:
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QualWordType fProbX_mask;
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Int_t fProbX_shift;
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Float_t fProbX_units;
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Double_t fProbX_1_over_log_units;
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Char_t fProbX_width;
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QualWordType fProbY_mask;
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Int_t fProbY_shift;
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Float_t fProbY_units;
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Double_t fProbY_1_over_log_units;
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Char_t fProbY_width;
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QualWordType fQBin_mask;
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Int_t fQBin_shift;
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Char_t fQBin_width;
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QualWordType fEdge_mask;
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Int_t fEdge_shift;
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Char_t fEdge_width;
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QualWordType fBad_mask;
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Int_t fBad_shift;
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Char_t fBad_width;
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QualWordType fTwoROC_mask;
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Int_t fTwoROC_shift;
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Char_t fTwoROC_width;
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QualWordType fHasFilledProb_mask;
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Int_t fHasFilledProb_shift;
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Char_t fHasFilledProb_width;
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Char_t fSpare_width;
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};
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PixelHit() : fType(0), fQuality(0), fCharge(0), fSize(0) {}
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PixelHit(Double_t x, Double_t y, Double_t z) :
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fPosition(x,y,z), fType(0), fQuality(0), fCharge(0), fSize(0) {}
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PixelHit(const ThreeVector &pos) :
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fPosition(pos), fType(0), fQuality(0), fCharge(0), fSize(0) {}
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Bool_t IsOnEdge() const;
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Bool_t HasBadPixels() const;
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const ThreeVector Position() const { return fPosition.V(); }
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EObjType ObjType() const { return kPixelHit; }
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void SetCharge(UInt_t u) { fCharge = u; }
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void SetPosition(const ThreeVector &pos) { fPosition = pos; }
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void SetPosition(Double_t x, Double_t y, Double_t z);
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void SetQuality(UInt_t u) { fQuality = u; }
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void SetType(Char_t t) { fType = t; }
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void SetSize(UInt_t u) { fSize = u; }
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Bool_t SpansTwoROCs() const;
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EType Type() const
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{ return static_cast<EType>(fType); }
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Double_t X() const { return fPosition.X(); }
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Double_t Y() const { return fPosition.Y(); }
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Double_t Z() const { return fPosition.Z(); }
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protected:
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Vect3 fPosition; //point in space
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Char_t fType; //pixel type
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UInt_t fQuality; //quality word as defined by SiPixelRecHitQuality
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UInt_t fCharge; //charge of assigned cluster
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UInt_t fSize; //size of assigned cluster
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static Packing fPacking; //!the (un)packing helper class
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ClassDef(PixelHit, 1) // PixelHit class
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};
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}
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//--------------------------------------------------------------------------------------------------
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inline Bool_t mithep::PixelHit::IsOnEdge() const
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{
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// Return true if pixel hit is on edge.
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return fPacking.IsOnEdge(fQuality);
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}
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//--------------------------------------------------------------------------------------------------
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inline Bool_t mithep::PixelHit::HasBadPixels() const
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{
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// Return true if pixel hit contains bad pixels.
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return fPacking.HasBadPixels(fQuality);
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}
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//--------------------------------------------------------------------------------------------------
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inline void mithep::PixelHit::SetPosition(Double_t x, Double_t y, Double_t z)
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{
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// Set pixel hit position.
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fPosition.SetXYZ(x,y,z);
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}
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//--------------------------------------------------------------------------------------------------
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inline Bool_t mithep::PixelHit::SpansTwoROCs() const
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{
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// Return true if pixel hit spans two rocs (ie is large).
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return fPacking.SpansTwoROCs(fQuality);
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}
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#endif
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