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/// \file persistency/gdml/G02/include/G02ChamberParameterisation.hh
/// \brief Definition of the G02ChamberParameterisation class
//
//
// $Id: G02ChamberParameterisation.hh 73394 2013-08-27 09:23:26Z gcosmo $
//
// Class G02ChamberParameterisation
//
// A parameterisation that describes a series of boxes along Z
// The boxes have equal width; their lengths are a linear equation.
// They are spaced an equal distance apart, starting from a given location.
//
// ----------------------------------------------------------------------------

#ifndef G02ChamberParameterisation_H
#define G02ChamberParameterisation_H 1

#include "globals.hh"
#include "G4VPVParameterisation.hh"

class G4VPhysicalVolume;
class G4Box;

// Dummy declarations to get rid of warnings ...
//
class G4Trd;
class G4Trap;
class G4Cons;
class G4Orb;
class G4Sphere;
class G4Ellipsoid;
class G4Torus;
class G4Para;
class G4Hype;
class G4Tubs;
class G4Polycone;
class G4Polyhedra;

// ----------------------------------------------------------------------------

/// Chamber parametrisation used in the GDML read/write example

class G02ChamberParameterisation : public G4VPVParameterisation
{ 
  public:
  
    G02ChamberParameterisation(G4int    NoChambers, 
                            G4double startZ, 
                            G4double spacing,
                            G4double widthChamber, 
                            G4double lengthInitial,
                            G4double lengthFinal );

   ~G02ChamberParameterisation();
   
    void ComputeTransformation (const G4int copyNo,
                                G4VPhysicalVolume* physVol) const;
    
    void ComputeDimensions (G4Box & trackerLayer, const G4int copyNo,
                            const G4VPhysicalVolume* physVol) const;

  private:  // Dummy declarations to get rid of warnings ...

    void ComputeDimensions (G4Trd&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Trap&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Cons&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Sphere&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Orb&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Ellipsoid&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Torus&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Para&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Hype&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Tubs&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Polycone&,const G4int,const G4VPhysicalVolume*) const {}
    void ComputeDimensions (G4Polyhedra&,const G4int,const G4VPhysicalVolume*) const {}

  private:

    G4int    fNoChambers;   
    G4double fStartZ;
    G4double fHalfWidth;        //  The half-width of each tracker chamber
    G4double fSpacing;          //  The distance between the chambers' center
    G4double fHalfLengthFirst;  //  The first half-length 
    G4double fHalfLengthIncr;   //  The Increment for the half-length 
};

// ----------------------------------------------------------------------------

#endif
