#ifndef ALIITSHIT_H #define ALIITSHIT_H /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * See cxx source for full Copyright notice */ /* $Id$ */ #include "AliHit.h" class TParticle; class AliITShit : public AliHit { //////////////////////////////////////////////////////////////////////// // Version: 0 // Written by Rene Brun, Federico Carminati, and Roberto Barbera // // Version: 1 // Modified and documented by Bjorn S. Nilsen // July 11 1999 // // AliITShit is the hit class for the ITS. Hits are the information // that comes from a Monte Carlo at each step as a particle mass through // sensitive detector elements as particles are transported through a // detector. // // Data members: // // Int_t fTrack // See AliHit for a full description. The track number of the track // that made this hit. // // Float_t fX // See AliHit for a full description. The global x position of the // hit (in the standard units of the Monte Carlo). // // Float_t fY // See AliHit for a full description. The global y position of the // hit (in the standard units of the Monte Carlo). // // Float_t fZ // See AliHit for a full description. The global z position of the // hit (in the standard units of the Monte Carlo). // // Int_t fStatus // The track status flag. This flag indicates the track status // at the time of creating this hit. It is made up of the following 8 // status bits from highest order to lowest order bits // 0 : IsTrackAlive(): IsTrackStop():IsTrackDisappeared(): // IsTrackOut():IsTrackExiting():IsTrackEntering():IsTrackInside() . // See AliMC for a description of these functions. If the function is // true then the bit is set to one, otherwise it is zero. // // Int_t fLayer // The layer number of the detector that contains this hit. See // AliITSgeom and AliITSv? for a description of the geometry. // // Int_t fLadder // The ladder number of the detector that contains this hit. See // AliITSgeom and AliITSv? for a description of the geometry. // // Int_t fDet // The detector number of the detector that contains this hit. See // AliITSgeom and AliITSv? for a description of the geometry. // // Float_t fPx // The x momentum, in global coordinates, of the particle that // "created" the hit at the time and position of the hit. The units // are those determined by the Monte Carlo. // // Float_t fPy // The y momentum, in global coordinates, of the particle that // "created" the hit at the time and position of the hit. The units // are those determined by the Monte Carlo. // // Float_t fPz // The z momentum, in global coordinates, of the particle that // "created" the hit at the time and position of the hit. The units // are those determined by the Monte Carlo. // // Float_t fDestep // The energy lost by the particle during the step ending in this // hit. The units are those determined by the Monte Carlo. // // Float_t fTof // The time of flight associated with the particle ending in this // hit. The time is typically measured from the point of creation of the // original particle (if this particle is a daughter). The units // are those determined by the Monte Carlo. // // //////////////////////////////////////////////////////////////////////// // public; // defined in AliHit // Int_t fTrack // defined in AliHit // Float_t fX; // defined in AliHit // Float_t fY; // defined in AliHit // Float_t fZ; // defined in AliHit public: AliITShit() { // Default consrtructor } AliITShit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits); virtual ~AliITShit() {} // Get Hit information functions. // virtual int GetTrack() const {return fTrack;} // define in AliHit // virtual void SetTrack(int track) const {fTrack=track;) // AliHit virtual Int_t GetTrackStatus() const { //returns the status code return fStatus; } virtual Int_t GetLayer() const { // returns the layer number return fLayer; } virtual Int_t GetLadder() const { // returns the ladder number return fLadder; } virtual Int_t GetDetector() const { // returns the detector number return fDet; } virtual void GetDetectorID(Int_t &layer,Int_t &ladder, Int_t &detector) const { // returns the detector ID layer=fLayer;ladder=fLadder;detector=fDet;return; }; virtual Int_t GetModule(); virtual Float_t GetIonization() const { // returns the Destep return fDestep; } // virtual void GetPositionG(Float_t &x,Float_t &y,Float_t &z) const { // returns the position in the Global //frame x=fX;y=fY;z=fZ;return; }; virtual void GetPositionG(Double_t &x,Double_t &y,Double_t &z) const { // returns the position in the Global //frame x=fX;y=fY;z=fZ;return; }; virtual Float_t GetTOF() const { // returns the time of flight return fTof; } // Returns particle 3 position at this hit in global coordinates. virtual void GetPositionG(Float_t &x,Float_t &y,Float_t &z, Float_t &tof) const { // returns the position in the Global //frame and the time of flight x=fX;y=fY;z=fZ,tof=fTof;return; }; virtual void GetPositionG(Double_t &x,Double_t &y,Double_t &z, Double_t &tof) const { // Returns particle 3 position and //the time of flight at this hit // in global coordinates. x=fX;y=fY;z=fZ,tof=fTof;return; }; virtual Float_t GetXG()const { // Returns particle X position at this hit // in global coordinates. return fX; } virtual Float_t GetYG()const { // Returns particle X position at this hit // in global coordinates. return fY; } virtual Float_t GetZG()const { // Returns particle Z position at this hit // in global coordinates. return fZ; } virtual void GetPositionL(Float_t &x,Float_t &y,Float_t &z); // Returns particle 3 position at this hit in local coordinates. virtual void GetPositionL(Float_t &x,Float_t &y,Float_t &z, Float_t &tof); virtual void GetPositionL(Double_t &x,Double_t &y,Double_t &z){ // Returns particle 3 position at this hit in local coordinates. Float_t xf,yf,zf;GetPositionL(xf,yf,zf);x=xf,y=yf;z=zf;} virtual void GetPositionL(Double_t &x,Double_t &y,Double_t &z, Double_t &tof){ // Returns particle 3 position and the time of flight at this hit // in local coordinates. Float_t xf,yf,zf,tf;GetPositionL(xf,yf,zf,tf);x=xf,y=yf;z=zf;tof=tf;} virtual Float_t GetXL(); // Returns particle X position at this hit in local coordinates. virtual Float_t GetYL(); // Returns particle Y position at this hit in local coordinates. virtual Float_t GetZL(); // Returns particle Z position at this hit in local coordinates. // Get Monti Carlo information about hit. virtual void GetMomentumG(Float_t &px,Float_t &py,Float_t &pz) const { // returns the particle momentum in the // Global frame px=fPx;py=fPy;pz=fPz;return; }; virtual void GetMomentumG(Double_t &px,Double_t &py,Double_t &pz) const { // returns the particle momentum in the // Global frame px=fPx;py=fPy;pz=fPz;return; }; virtual Float_t GetPXG()const { // Returns particle X momentum at // this hit in global coordinates. return fPx; } virtual Float_t GetPYG()const { // Returns particle Y momentum at // this hit in global coordinates. return fPy; } virtual Float_t GetPZG()const { // Returns particle Z momentum at // this hit in global coordinates. return fPz; } virtual void GetMomentumL(Float_t &px,Float_t &py,Float_t &pz); virtual void GetMomentumL(Double_t &px,Double_t &py,Double_t &pz){ // Returns particle 3 momentum at this hit in local coordinates. Float_t x,y,z;GetMomentumL(x,y,z);px=x,py=y,pz=z;} virtual Float_t GetPXL(); // Returns particle X momentum at this hit in local coordinates. virtual Float_t GetPYL(); // Returns particle Y momentum at this hit in local coordinates. virtual Float_t GetPZL(); // Returns particle Z momentum at this hit in local coordinates. virtual TParticle * GetParticle(); // Returns pointer to this particle. Bool_t StatusInside() { // checks if the particle is "inside" if((fStatus&0x0001)==0) return kFALSE; else return kTRUE; } Bool_t StatusEntering() { // checks if the particle is "entering" if((fStatus&0x0002)==0) return kFALSE; else return kTRUE; } Bool_t StatusExiting() { // checks if the particle is "exiting" if((fStatus&0x0004)==0) return kFALSE; else return kTRUE; } Bool_t StatusOut() { // checks if the particle is "out" if((fStatus&0x0008)==0) return kFALSE; else return kTRUE; } Bool_t StatusDisappeared() { // checks if the particle is "disappeared" if((fStatus&0x00010)==0) return kFALSE; else return kTRUE; } Bool_t StatusStop() { // checks if the particle is "stopped" if((fStatus&0x00020)==0) return kFALSE; else return kTRUE; } Bool_t StatusAlive() { // checks if the particle is "alive" if((fStatus&0x00030)==0) return kFALSE; else return kTRUE; } protected: Int_t fStatus; // Track Status Int_t fLayer; // Layer number Int_t fLadder; // Ladder number Int_t fDet; // Detector number Float_t fPx; // PX of particle at the point of the hit Float_t fPy; // PY of particle at the point of the hit Float_t fPz; // PZ of particle at the point of the hit Float_t fDestep; // Energy deposited in the current step Float_t fTof; // Time of flight at the point of the hit ClassDef(AliITShit,1) //Hits object for set:ITS }; #endif