G4Hyperbola.hh

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// $Id$
//
// ----------------------------------------------------------------------
// Class G4Hyperbola
//
// Class description:
// 
// Definition of a generic hyperbola.
 
// Authors: J.Sulkimo, P.Urban.
// Revisions by: L.Broglia, G.Cosmo.
// ----------------------------------------------------------------------
#ifndef __HYPERBOLICCURVE_H
#define __HYPERBOLICCURVE_H 
 
#include "G4Conic.hh"
 
class G4Hyperbola : public G4Conic
{
 
public:  // with description
 
  G4Hyperbola();
  virtual ~G4Hyperbola();
    // Constructor & destructor.
 
  G4Hyperbola(const G4Hyperbola& right);
  G4Hyperbola& operator=(const G4Hyperbola& right);
    // Copy constructor and assignment operator.
 
  G4Curve* Project(const G4Transform3D& tr= G4Transform3D::Identity);
    // Transforms and projects the curve.
 
  G4bool Tangent(G4CurvePoint& cp, G4Vector3D& v);
    // Returns tangent to curve at a given point, if existing.
    // The tangent is computed from the 3D point representation.
 
  inline G4double  GetPMax() const;
  inline G4Point3D GetPoint(G4double param) const;
  inline G4double  GetPPoint(const G4Point3D& p) const;
    // Accessors methods.
 
  inline G4double GetSemiAxis() const;
  inline G4double GetSemiImagAxis() const;
  inline void Init(const G4Axis2Placement3D& position0,
               G4double semiAxis0, G4double semiImagAxis0);
    // Get/Set for the geometric data.
 
public:  // without description
 
  inline G4int IntersectRay2D(const G4Ray& ray);
 
  //void IntersectRay2D(const G4Ray& ray, G4CurveRayIntersection& is);
  //G4Hyperbola(G4Point3d, G4Point3d, G4Point3d, 
  //            G4Point3d, G4double, G4double );
  //G4Point3d EvaluateByParameterValue(G4double u);
  //G4Point3d GetBoundMax();
  //G4Point3d GetBoundMin();    
 
protected:
 
  void InitBounded();
 
private:
 
  G4int Inside(const G4Point3D&, const G4Ray&);
 
private:
 
  G4Point3D Focus1;
  G4Point3D Focus2;    
  G4Point3D ProjFocus1;
  G4Point3D ProjFocus2; 
 
  // geometric data
  G4double semiAxis;
  G4double semiImagAxis;
 
  G4double ratioAxisImagAxis;
 
  G4Transform3D toUnitHyperbola;
 
  G4double forTangent;
    // R_1^2/R_2^2
};
 
#include "G4Hyperbola.icc"
 
#endif