G4ErrorPlaneSurfaceTarget.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 plane surface.
00037 
00038 // History:
00039 // - Created. P. Arce, September 2004
00040 // --------------------------------------------------------------------
00041 
00042 #ifndef G4ErrorPlaneSurfaceTarget_hh
00043 #define G4ErrorPlaneSurfaceTarget_hh
00044 
00045 #include "globals.hh"
00046 #include "G4ErrorSurfaceTarget.hh"
00047 #include "G4ThreeVector.hh"
00048 #include "G4Plane3D.hh"
00049 
00050 class G4ErrorPlaneSurfaceTarget : public G4ErrorSurfaceTarget, G4Plane3D
00051 {
00052   public:  // with description
00053 
00054     G4ErrorPlaneSurfaceTarget(G4double a=0, G4double b=0,
00055                               G4double c=0, G4double d=0);
00056       // Constructs plane by parameters: ax+by+cz+d = 0
00057 
00058     G4ErrorPlaneSurfaceTarget(const G4Normal3D &n,
00059                               const G4Point3D &p);
00060       // Constructs plane by point and normal
00061 
00062     G4ErrorPlaneSurfaceTarget(const G4Point3D &p1,
00063                               const G4Point3D &p2,
00064                               const G4Point3D &p3);
00065       // Constructs plane by three points
00066 
00067     ~G4ErrorPlaneSurfaceTarget();
00068 
00069     virtual G4ThreeVector Intersect( const G4ThreeVector& point,
00070                                      const G4ThreeVector& direc ) const;
00071       // Intersects the surface with the line given by point and direction
00072   
00073     virtual G4double GetDistanceFromPoint( const G4ThreeVector& point,
00074                                            const G4ThreeVector& direc ) const;
00075       // Distance from point to surface in a given direction
00076 
00077     virtual G4double GetDistanceFromPoint( const G4ThreeVector& pt ) const;
00078       // Closest distance from point to surface
00079 
00080     virtual G4Plane3D GetTangentPlane( const G4ThreeVector& point ) const;
00081       // Get tangent plane as itself
00082 
00083     virtual void Dump( const G4String& msg ) const;
00084       // Dump plane surface parameter
00085 
00086 };
00087 
00088 #endif

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