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geant4/source/geometry/solids/BREPS/include/G4BezierSurface.hh
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//
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// $Id: G4BezierSurface.hh,v 1.7 2006/06/29 18:38:20 gunter Exp $
// GEANT4 tag $Name: geant4-09-01 $
//
// ----------------------------------------------------------------------
// Class G4BezierSurface
//
// Class description:
//
// Definition of a generic Bezier surface.
// Authors: J.Sulkimo, P.Urban.
// Revisions by: L.Broglia, G.Cosmo.
// ----------------------------------------------------------------------
#ifndef __BEZIERSURFACE_H
#define __BEZIERSURFACE_H
#include "G4Ray.hh"
#include "G4ControlPoints.hh"
#include "G4SurfaceList.hh"
#include "G4PointRat.hh"
#include "G4OsloMatrix.hh"
#include "G4KnotVector.hh"
class G4ProjectedSurface;
class G4BezierSurface : public G4Surface
{
friend class G4BSplineSurface;
friend class G4ProjectedSurface;
public: // with description
G4BezierSurface();
virtual ~G4BezierSurface();
// Constructor & destructor
inline G4Point3D AveragePoint() const;
inline void SetAveragePoint(G4Point3D p);
inline G4double UAverage() const;
inline G4double VAverage() const;
inline void Dir(G4int d);
inline void ChangeDir();
inline G4double SMin() const;
inline G4double SMax() const;
inline G4int GetOrder(G4int direction) const;
inline void PutOrder(G4int direction, G4int value);
inline G4double GetU() const;
inline G4double GetV() const;
void CalcBBox();
G4int BIntersect(G4SurfaceList&);
G4int ClipBothDirs();
void ClipSurface();
virtual G4Vector3D SurfaceNormal(const G4Point3D& Pt) const;
friend void CopySurface(G4BezierSurface& bez);
protected: // without description
G4SurfaceList* bezier_list;
static G4int Clips;
static G4int Splits;
static G4double Tolerance;
// Test variables
private:
void CalcAverage();
void CalcDistance(const G4Point3D&);
void SetValues();
inline void LocalizeClipValues();
void SplitNURBSurface();
void GetClippedRegionFromSurface();
void RefineSurface();
void CalcOsloMatrix();
void MapSurface(G4Surface*);
inline G4double Findzero(G4double x0, G4double x1,
G4double y0, G4double y1) const;
inline G4int Sign(G4double a) const;
// For ClipSurface...
inline G4int Amax(G4int i, G4int j) const;
inline G4int Amin(G4int i, G4int j) const;
inline G4int AhIndex(G4int j, G4int t, G4int iorder) const;
// For calc_G4OsloMatrix...
private:
G4BezierSurface(const G4BezierSurface&);
G4BezierSurface& operator=(const G4BezierSurface &);
// Private copy constructor and assignment operator.
private:
G4int order[2];
G4double smin;
G4double smax;
G4Point3D line;
G4double average_u;
G4double average_v;
G4Point3D average_pt;
G4int dir;
G4KnotVector *u_knots;
G4KnotVector *v_knots;
G4ControlPoints *ctl_points;
G4KnotVector *new_knots;
G4int ord;
G4OsloMatrix * oslo_m;
G4int lower,upper;
G4double u[2];
G4double v[2];
G4double u_min;
G4double u_max;
G4double v_min;
G4double v_max;
G4ControlPoints* old_points;
};
#include "G4BezierSurface.icc"
#endif