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geant4/source/geometry/solids/BREPS/include/G4Line.hh
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2016-06-08 15:55:53 +02:00

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// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4Line.hh,v 1.6 2000/11/08 14:22:02 gcosmo Exp $
// GEANT4 tag $Name: geant4-03-00 $
//
// ----------------------------------------------------------------------
// Class G4Line
//
// Class description:
//
// Definition of a generic line.
// Authors: J.Sulkimo, P.Urban.
// Revisions by: L.Broglia, G.Cosmo.
// ----------------------------------------------------------------------
#ifndef __LINE_H
#define __LINE_H
#include "G4Curve.hh"
class G4Line : public G4Curve
{
public: // with description
G4Line();
virtual ~G4Line();
// Constructor & destructor.
G4Line(const G4Line& orig);
G4Line& operator=(const G4Line& right);
// Copy constructor and assignment operator.
G4Curve* Project(const G4Transform3D& tr=G4Transform3D::Identity);
// Transforms and projects the line.
G4bool Tangent(G4CurvePoint& cp, G4Vector3D& vec);
// Returns tangent to line 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& pt) const;
// Accessors methods.
inline G4Point3D GetPnt() const;
inline G4Vector3D GetDir() const;
inline void Init(const G4Point3D& pnt0, const G4Vector3D& dir0);
// Get/Set for the geometric data.
public: // without description
inline G4int IntersectRay2D(const G4Ray& ray);
// void IntersectRay2D(const G4Ray& ray, G4CurveRayIntersection& is);
protected:
inline void InitBounded();
private:
// geometric data
G4Point3D pnt;
G4Vector3D dir;
G4Vector3D invDir; // dir / |dir|^2 always
G4Vector3D v; // dir / |dir| always
};
#include "G4Line.icc"
#endif