AliMFTGeometry.h

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#ifndef AliMFTGeometry_H
#define AliMFTGeometry_H


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

// $Id$


# include "AliGeometry.h"
# include "AliMFTSegmentation.h"

class AliMFTGeometryBuilder;

//__________________________________________________________________

class AliMFTGeometry : public AliGeometry
{
public:

  static const Int_t kNDisks = 5;             
  static const Double_t kSensorLength;        
  static const Double_t kSensorHeight;        
  static const Double_t kSensorActiveHeight;  
  static const Double_t kSensorActiveWidth;   
  static const Double_t kSensorThickness;     
  static const Double_t kXPixelPitch;         
  static const Double_t kYPixelPitch;         
  static const Int_t kNPixelX = 1024;         
  static const Int_t kNPixelY = 512;          
  static const Double_t kSensorMargin;        

  static const Double_t kSensorInterspace;    
  static const Double_t kSensorSideOffset;    
  static const Double_t kSensorTopOffset;     
  static const Double_t kLadderOffsetToEnd;   
  static const Double_t fHeightActive;   
  static const Double_t fHeightReadout;  

  static const Double_t kFlexHeight;          
  static const Double_t kLineWidth; 
  static const Double_t kVarnishThickness;  
  static const Double_t kAluThickness;    
  static const Double_t kKaptonThickness;
  static const Double_t kFlexThickness;       
  static const Double_t kClearance;          
  static const Double_t kRadiusHole1;          
  static const Double_t kRadiusHole2;          
  static const Double_t kHoleShift1;          
  static const Double_t kHoleShift2;          
  static const Double_t kConnectorOffset;          
  static const Double_t kCapacitorDz;        
  static const Double_t kCapacitorDy;        
  static const Double_t kCapacitorDx; 
  static const Double_t kConnectorLength;
  static const Double_t kConnectorWidth;
  static const Double_t kConnectorHeight;
  static const Double_t kConnectorThickness;
  static const Double_t kEpsilon;
  static const Double_t kGlueThickness;
  static const Double_t kGlueEdge;
  static const Double_t kShiftDDGNDline;
  static const Double_t kShiftline;


  static AliMFTGeometry* Instance();
  
  enum ObjectTypes {kHalfMFTType, kHalfDiskType, kPlaneType, kLadderType, kSensorType};
  
  virtual ~AliMFTGeometry();
  virtual void GetGlobal(const AliRecPoint * p, TVector3 & pos, TMatrixF & mat) const {};
  virtual void GetGlobal(const AliRecPoint * p, TVector3 & pos) const {};
  virtual Bool_t Impact(const TParticle * particle) const             {return kFALSE;};
  void   Build();
  
  Int_t GetObjectType(UInt_t uniqueID)  const {return ((uniqueID>>14)&0x7);};
  Int_t GetHalfMFTID(UInt_t uniqueID)   const {return ((uniqueID>>13)&0x1);};
  Int_t GetHalfDiskID(UInt_t uniqueID)  const {return ((uniqueID>>10)&0x7);};
  Int_t GetLadderID(UInt_t uniqueID)    const {return ((uniqueID>>4)&0x3F);};
  Int_t GetSensorID(UInt_t uniqueID)    const {return (uniqueID&0xF);};
  
  UInt_t GetObjectID(ObjectTypes type, Int_t half=0, Int_t disk=0, Int_t ladder=0, Int_t chip=0) const;
  
  Int_t GetSensorVolumeID()    const {return fSensorVolumeId;};
  void  SetSensorVolumeID(Int_t val)   { fSensorVolumeId= val;};

  AliMFTSegmentation * GetSegmentation() const {return fSegmentation;};
  
  Bool_t Hit2PixelID(Double_t xHit, Double_t yHit, Double_t zHit, Int_t detElemID, Int_t &xPixel, Int_t &yPixel) const;
  void GetPixelCenter(Int_t xPixel, Int_t yPixel, Int_t detElemID, Double_t &xCenter, Double_t &yCenter, Double_t &zCenter ) const ;
  Int_t GetDiskNSensors(Int_t diskId) const;
  Int_t GetDetElemLocalID(Int_t detElem) const;

  void LoadSegmentation();

  
private:

  static AliMFTGeometry* fgInstance; 
  AliMFTGeometry();
  AliMFTGeometry(const char* name);
  
  AliMFTGeometryBuilder* fBuilder; 
  AliMFTSegmentation *fSegmentation; 
  Int_t fSensorVolumeId; 
  
  ClassDef(AliMFTGeometry, 1);

};


#endif