[u/mrichter/AliRoot.git] / PHOS / AliPHOSGeoUtils.h

#ifndef ALIPHOSGEOUTILS_H
#define ALIPHOSGEOUTILS_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

//_________________________________________________________________________
// class for geometry transformations in PHOS
// this class contains AiRoot-independent transformations,
// AliRoot part is in AliPHOSGeometry
// PHOS consists of the electromagnetic calorimeter (EMCA)
// charged particle veto (CPV) and support
// 
//*-- Author: Dmitri Peressounko (RRC "KI")

// --- ROOT system ---
#include "TNamed.h"

// --- AliRoot header files ---

class TGeoHMatrix ;
class TVector3;
class TParticle ;
class AliPHOSEMCAGeometry;
class AliPHOSCPVGeometry;
class AliPHOSSupportGeometry;

class AliPHOSGeoUtils : public TNamed {

public: 

  AliPHOSGeoUtils() ;
  AliPHOSGeoUtils(const Text_t* name, const Text_t* title="") ;
  AliPHOSGeoUtils(const AliPHOSGeoUtils & geom) ;
  
  virtual ~AliPHOSGeoUtils(void) ; 
  AliPHOSGeoUtils & operator = (const AliPHOSGeoUtils  & rvalue) ;

  Bool_t AbsToRelNumbering(Int_t AbsId, Int_t * RelId) const ; 
                                         // converts the absolute PHOS cell numbering to a relative 
  Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) const ; 
                                         // converts the absolute PHOS numbering to a relative         
                                         
  void RelPosInModule(const Int_t * relId, Float_t & y, Float_t & z) const ; 
                                         // gets the position of element (pad or Xtal) relative to 
                                         // center of PHOS module  
  void RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & AbsId) const; 
                                         // converts local PHOS-module (x, z) coordinates to absId 
  void RelPosToRelId(Int_t module, Double_t x, Double_t z, Int_t * relId) const; 
                                         // converts local PHOS-module (x, z) coordinates to relId 
  void RelPosInAlice(Int_t AbsId, TVector3 &  pos) const ;             
                                         // gets the position of element (pad or Xtal) relative to Alice

  void Local2Global(Int_t module, Float_t x, Float_t z, TVector3 &globaPos) const ;
              
  void Global2Local(TVector3& localPosition,const TVector3& globalPosition,Int_t module) const ;

  Bool_t GlobalPos2RelId(TVector3 & global, Int_t * relId) ;
        //Tranfers global position into numbers in PHOS cols-raws
        //Returns FALSE if local x,z beyond PHOS. Distance in perpendicular to PHOS direction is not checked.

  Bool_t ImpactOnEmc(const TParticle * particle,Int_t & ModuleNumber, Double_t & z, Double_t & x) const ;
                                         //Checks if NEUTRAL particle hits PHOS
  Bool_t ImpactOnEmc(const Double_t * vtx, const TVector3& vec,                
		   Int_t & ModuleNumber, Double_t & z, Double_t & x) const ; 
                                         // calculates the impact coordinates of a neutral particle  
                                         // emitted in direction theta and phi in ALICE
  Bool_t ImpactOnEmc(const Double_t * vtx, const Double_t theta, const Double_t phi, 
		   Int_t & ModuleNumber, Double_t & z, Double_t & x) const ; 
                                         // calculates the impact coordinates of a neutral particle  
                                         // emitted in direction theta and phi in ALICE
  void  GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x, Float_t z, TVector3& vInc) const ;
                                         //calculates vector from vertex to current point in module local frame

  Bool_t IsInEMC(Int_t id) const { if (id > fNModules *  fNCristalsInModule ) return kFALSE; return kTRUE; } 

  //Method to set shift-rotational matrixes from ESDHeader
  void SetMisalMatrix(const TGeoHMatrix * m, Int_t mod) ;

protected:
  //Returns shift-rotational matrixes for different volumes
  const TGeoHMatrix * GetMatrixForModule(Int_t mod)const ;
  const TGeoHMatrix * GetMatrixForStrip(Int_t mod, Int_t strip)const ;
  const TGeoHMatrix * GetMatrixForCPV(Int_t mod)const ;
  const TGeoHMatrix * GetMatrixForPHOS(Int_t mod)const ;

protected:

  AliPHOSEMCAGeometry     *fGeometryEMCA ;   // Geometry object for Electromagnetic calorimeter
  AliPHOSCPVGeometry      *fGeometryCPV ;    // Geometry object for CPV  (IHEP)
  AliPHOSSupportGeometry  *fGeometrySUPP ;   // Geometry object for PHOS support
 

  Int_t fNModules ;          //Maximal designed number of modules in PHOS
  Int_t fNCristalsInModule ; //Number of crystals in one module
  Int_t fNPhi ;              //Number of crystals along Phi direction
  Int_t fNZ ;                //Number of crystals along Z direction
  Int_t fNumberOfCPVPadsPhi; //Number of CPV pads along Phi direction
  Int_t fNumberOfCPVPadsZ ;  //Number of CPV pads along Z direction
  Int_t fNCellsXInStrip ;    //Number of crystals in strip
  Int_t fNCellsZInStrip ;    //Number of crystals in strip in Z direction 
  Int_t fNStripZ ;           //Number of strips in Z direction

  Float_t fCrystalShift ;    //Distance between center of module and crystal surface
  Float_t fXtlArrSize[3] ;   //Total size of cristals array
  Float_t fCryCellShift ; 
  Float_t fCryStripShift ;
  Float_t fCellStep ; 
  Float_t fPadSizePhi ;      //Size of CPV pad in Phi direction
  Float_t fPadSizeZ ;        //Size of CPV pad in Z direction
  Float_t fCPVBoxSizeY ;

  TGeoHMatrix* fEMCMatrix[5] ; //Orientations of crystalls array in modules
  TGeoHMatrix* fStripMatrix[5][224];  //Orientations of strip units
  TGeoHMatrix* fCPVMatrix[5] ; //Orientations of CPV
  const TGeoHMatrix* fPHOSMatrix[5] ; //Orientations of PHOS modules

  TClonesArray * fMisalArray ;

  ClassDef(AliPHOSGeoUtils,2)       // PHOS geometry class 

} ;

#endif // AliPHOSGEOUTILS_H
Commit	Line	Data
70a0fabe	1	#ifndef ALIPHOSGEOUTILS_H
	2	#define ALIPHOSGEOUTILS_H
	3	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	//_________________________________________________________________________
	7	// class for geometry transformations in PHOS
bcc9e89e	8	// this class contains AiRoot-independent transformations,
bcc9e89e	9	// AliRoot part is in AliPHOSGeometry
70a0fabe	10	// PHOS consists of the electromagnetic calorimeter (EMCA)
bcc9e89e	11	// charged particle veto (CPV) and support
70a0fabe	12	//
	13	//*-- Author: Dmitri Peressounko (RRC "KI")
	14
	15	// --- ROOT system ---
	16	#include "TNamed.h"
	17
	18	// --- AliRoot header files ---
	19
bb5c37a5	20	class TGeoHMatrix ;
70a0fabe	21	class TVector3;
70a0fabe	22	class TParticle ;
bcc9e89e	23	class AliPHOSEMCAGeometry;
	24	class AliPHOSCPVGeometry;
	25	class AliPHOSSupportGeometry;
70a0fabe	26
	27	class AliPHOSGeoUtils : public TNamed {
	28
	29	public:
	30
	31	AliPHOSGeoUtils() ;
	32	AliPHOSGeoUtils(const Text_t* name, const Text_t* title="") ;
	33	AliPHOSGeoUtils(const AliPHOSGeoUtils & geom) ;
	34
	35	virtual ~AliPHOSGeoUtils(void) ;
	36	AliPHOSGeoUtils & operator = (const AliPHOSGeoUtils & rvalue) ;
	37
	38	Bool_t AbsToRelNumbering(Int_t AbsId, Int_t * RelId) const ;
	39	// converts the absolute PHOS cell numbering to a relative
	40	Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) const ;
	41	// converts the absolute PHOS numbering to a relative
	42
	43	void RelPosInModule(const Int_t * relId, Float_t & y, Float_t & z) const ;
	44	// gets the position of element (pad or Xtal) relative to
	45	// center of PHOS module
	46	void RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & AbsId) const;
	47	// converts local PHOS-module (x, z) coordinates to absId
	48	void RelPosToRelId(Int_t module, Double_t x, Double_t z, Int_t * relId) const;
	49	// converts local PHOS-module (x, z) coordinates to relId
	50	void RelPosInAlice(Int_t AbsId, TVector3 & pos) const ;
	51	// gets the position of element (pad or Xtal) relative to Alice
	52
	53	void Local2Global(Int_t module, Float_t x, Float_t z, TVector3 &globaPos) const ;
	54
	55	void Global2Local(TVector3& localPosition,const TVector3& globalPosition,Int_t module) const ;
	56
f4aea312	57	Bool_t GlobalPos2RelId(TVector3 & global, Int_t * relId) ;
	58	//Tranfers global position into numbers in PHOS cols-raws
	59	//Returns FALSE if local x,z beyond PHOS. Distance in perpendicular to PHOS direction is not checked.
	60
70a0fabe	61	Bool_t ImpactOnEmc(const TParticle * particle,Int_t & ModuleNumber, Double_t & z, Double_t & x) const ;
	62	//Checks if NEUTRAL particle hits PHOS
	63	Bool_t ImpactOnEmc(const Double_t * vtx, const TVector3& vec,
	64	Int_t & ModuleNumber, Double_t & z, Double_t & x) const ;
	65	// calculates the impact coordinates of a neutral particle
	66	// emitted in direction theta and phi in ALICE
	67	Bool_t ImpactOnEmc(const Double_t * vtx, const Double_t theta, const Double_t phi,
	68	Int_t & ModuleNumber, Double_t & z, Double_t & x) const ;
	69	// calculates the impact coordinates of a neutral particle
	70	// emitted in direction theta and phi in ALICE
	71	void GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x, Float_t z, TVector3& vInc) const ;
	72	//calculates vector from vertex to current point in module local frame
	73
	74	Bool_t IsInEMC(Int_t id) const { if (id > fNModules * fNCristalsInModule ) return kFALSE; return kTRUE; }
	75
bb5c37a5	76	//Method to set shift-rotational matrixes from ESDHeader
98082233	77	void SetMisalMatrix(const TGeoHMatrix * m, Int_t mod) ;
bb5c37a5	78
	79	protected:
	80	//Returns shift-rotational matrixes for different volumes
98082233	81	const TGeoHMatrix * GetMatrixForModule(Int_t mod)const ;
	82	const TGeoHMatrix * GetMatrixForStrip(Int_t mod, Int_t strip)const ;
	83	const TGeoHMatrix * GetMatrixForCPV(Int_t mod)const ;
	84	const TGeoHMatrix * GetMatrixForPHOS(Int_t mod)const ;
70a0fabe	85
bcc9e89e	86	protected:
70a0fabe	87
bcc9e89e	88	AliPHOSEMCAGeometry *fGeometryEMCA ; // Geometry object for Electromagnetic calorimeter
	89	AliPHOSCPVGeometry *fGeometryCPV ; // Geometry object for CPV (IHEP)
	90	AliPHOSSupportGeometry *fGeometrySUPP ; // Geometry object for PHOS support
	91
70a0fabe	92
bcc9e89e	93	Int_t fNModules ; //Maximal designed number of modules in PHOS
70a0fabe	94	Int_t fNCristalsInModule ; //Number of crystals in one module
	95	Int_t fNPhi ; //Number of crystals along Phi direction
	96	Int_t fNZ ; //Number of crystals along Z direction
	97	Int_t fNumberOfCPVPadsPhi; //Number of CPV pads along Phi direction
	98	Int_t fNumberOfCPVPadsZ ; //Number of CPV pads along Z direction
	99	Int_t fNCellsXInStrip ; //Number of crystals in strip
	100	Int_t fNCellsZInStrip ; //Number of crystals in strip in Z direction
	101	Int_t fNStripZ ; //Number of strips in Z direction
	102
	103	Float_t fCrystalShift ; //Distance between center of module and crystal surface
	104	Float_t fXtlArrSize[3] ; //Total size of cristals array
	105	Float_t fCryCellShift ;
bb5c37a5	106	Float_t fCryStripShift ;
70a0fabe	107	Float_t fCellStep ;
	108	Float_t fPadSizePhi ; //Size of CPV pad in Phi direction
	109	Float_t fPadSizeZ ; //Size of CPV pad in Z direction
	110	Float_t fCPVBoxSizeY ;
	111
bb5c37a5	112	TGeoHMatrix* fEMCMatrix[5] ; //Orientations of crystalls array in modules
	113	TGeoHMatrix* fStripMatrix[5][224]; //Orientations of strip units
	114	TGeoHMatrix* fCPVMatrix[5] ; //Orientations of CPV
98082233	115	const TGeoHMatrix* fPHOSMatrix[5] ; //Orientations of PHOS modules
bb5c37a5	116
	117	TClonesArray * fMisalArray ;
	118
bcc9e89e	119	ClassDef(AliPHOSGeoUtils,2) // PHOS geometry class
70a0fabe	120
	121	} ;
	122
	123	#endif // AliPHOSGEOUTILS_H