G4ErrorCylSurfaceTarget.hh

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00026 //
00027 // $Id$
00028 //
00029 //
00030 // --------------------------------------------------------------------
00031 //      GEANT 4 class header file 
00032 // --------------------------------------------------------------------
00033 //
00034 // Class Description:
00035 //
00036 // G4ErrorTarget class: limits step when track reaches a cylindrical surface.
00037 
00038 // History:
00039 // - Created. P. Arce, September 2004
00040 // --------------------------------------------------------------------
00041 
00042 #ifndef G4ErrorCylSurfaceTarget_hh
00043 #define G4ErrorCylSurfaceTarget_hh
00044 
00045 #include "globals.hh"
00046 #include "G4ErrorSurfaceTarget.hh"
00047 #include "G4ThreeVector.hh"
00048 #include "G4RotationMatrix.hh"
00049 #include "G4AffineTransform.hh"
00050 #include "G4Plane3D.hh"
00051 
00052 class G4ErrorCylSurfaceTarget : public G4ErrorSurfaceTarget
00053 {
00054   public:  // with description
00055 
00056     G4ErrorCylSurfaceTarget( const G4double& radius,
00057                              const G4ThreeVector& trans=G4ThreeVector(),
00058                              const G4RotationMatrix& rotm=G4RotationMatrix() );
00059       // Constructs cylindrical surface by radius, translation and rotation
00060 
00061     G4ErrorCylSurfaceTarget( const G4double& radius,
00062                              const G4AffineTransform& trans );
00063       // Constructs cylindrical surface by radius and affine transformation
00064 
00065     ~G4ErrorCylSurfaceTarget();
00066 
00067     virtual G4ThreeVector IntersectLocal( const G4ThreeVector& point,
00068                                           const G4ThreeVector& direc ) const;
00069       // Intersects the cylindrical surface with the line in local (cylinder)
00070       // coordinates, given by point and direction
00071 
00072     virtual G4double GetDistanceFromPoint( const G4ThreeVector& point,
00073                                            const G4ThreeVector& direc ) const;
00074       // Distance from a point to the cylindrical surface in a given direction
00075 
00076     virtual G4double GetDistanceFromPoint( const G4ThreeVector& point ) const;
00077       // Minimal distance from a point to the cylindrical surface in any
00078       // direction
00079 
00080     virtual G4Plane3D GetTangentPlane( const G4ThreeVector& point ) const;
00081       // Get plane tangent to cylindrical surface at a given point
00082 
00083     virtual void Dump( const G4String& msg ) const;
00084       // Dump cylindrical surface parameter
00085 
00086   private:
00087 
00088      G4double fradius;
00089      G4AffineTransform ftransform;
00090 };
00091 
00092 #endif

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