G4BSplineSurface Class Reference

#include <G4BSplineSurface.hh>

Inheritance diagram for G4BSplineSurface:

Public Member Functions
	G4BSplineSurface ()
	G4BSplineSurface (const char *nurbfilename, G4Ray &rayref)
	G4BSplineSurface (G4int u, G4int v, G4KnotVector &u_kv, G4KnotVector &v_kv, G4ControlPoints &cp)
virtual	~G4BSplineSurface ()
G4int	Intersect (const G4Ray &)
void	CalcBBox ()
G4double	GetUHit () const
G4double	GetVHit () const
G4double	ClosestDistanceToPoint (const G4Point3D &)
void	Reset ()
G4int	GetRows () const
G4int	GetCols () const
G4Point3D	GetControlPoint (G4int a, G4int b) const
G4int	MyType () const
Public Member Functions inherited from G4Surface
	G4Surface ()
virtual	~G4Surface ()
G4int	operator== (const G4Surface &s)
virtual G4String	GetEntityType () const
virtual const char *	Name () const
virtual G4int	MyType () const
void	SetBoundaries (G4CurveVector *)
virtual G4double	HowNear (const G4Vector3D &x) const
virtual G4double	ClosestDistanceToPoint (const G4Point3D &Pt)
G4Vector3D	GetOrigin () const
G4double	GetDistance () const
void	SetDistance (G4double Dist)
G4int	IsActive () const
void	SetActive (G4int act)
void	Deactivate ()
void	SetSameSense (G4int sameSense0)
G4int	GetSameSense () const
G4BoundingBox3D *	GetBBox ()
const G4Point3D &	GetClosestHit () const
void	SetNextNode (G4Surface *)
G4Surface *	GetNextNode ()
virtual void	Reset ()
virtual G4int	Intersect (const G4Ray &)
virtual G4Vector3D	Normal (const G4Vector3D &p) const
virtual void	CalcBBox ()
virtual G4double	GetUHit () const
virtual G4double	GetVHit () const
virtual G4Point3D	Evaluation (const G4Ray &G4Rayref)
virtual G4int	Evaluate (register const G4Ray &Rayref)
virtual void	Project ()
virtual void	CalcNormal ()
virtual G4int	IsConvex () const
virtual G4int	GetConvex () const
virtual G4int	GetNumberOfPoints () const
virtual const G4Point3D &	GetPoint (G4int Count) const
virtual G4Ray *	Norm ()
virtual G4Vector3D	SurfaceNormal (const G4Point3D &Pt) const =0
Public Member Functions inherited from G4STEPEntity
	G4STEPEntity ()
virtual	~G4STEPEntity ()
virtual G4String	GetEntityType () const =0

Additional Inherited Members
Static Public Member Functions inherited from G4Surface
static void	Project (G4double &Coord, const G4Point3D &Pt, const G4Plane &Pl)
Protected Member Functions inherited from G4Surface
virtual void	InitBounded ()
Protected Attributes inherited from G4Surface
G4BoundingBox3D *	bbox
G4Point3D	closest_hit
G4Surface *	next
G4SurfaceBoundary	surfaceBoundary
G4double	kCarTolerance
G4double	kAngTolerance
G4int	Intersected
G4Vector3D	origin
G4int	Type
G4int	AdvancedFace
G4int	active
G4double	distance
G4double	uhit
G4double	vhit
G4int	sameSense

Detailed Description

Definition at line 48 of file G4BSplineSurface.hh.

Constructor & Destructor Documentation

G4BSplineSurface() [1/3]

G4BSplineSurface::G4BSplineSurface

(

)

Definition at line 41 of file G4BSplineSurface.cc.

  : ord(0), k_index(0), param(0.), Rational(0)
{
  distance = kInfinity;
  dir=ROW;
  first_hit = Hit = (G4UVHit*)0;
  order[0] = 0; order[1] = 0;
  ctl_points = (G4ControlPoints*)0;
  u_knots = v_knots = tmp_knots = (G4KnotVector*)0;
}

G4BSplineSurface() [2/3]

G4BSplineSurface::G4BSplineSurface	(	const char *	nurbfilename,
		G4Ray &	rayref
	)

Definition at line 53 of file G4BSplineSurface.cc.

  : dir(0), ord(0), k_index(0), param(0.), Rational(0)
{
  distance = kInfinity;    
  first_hit = Hit = (G4UVHit*)0;
  order[0] = 0; order[1] = 0;
  ctl_points = (G4ControlPoints*)0;
  u_knots = v_knots = tmp_knots = (G4KnotVector*)0;
}

G4BSplineSurface() [3/3]

G4BSplineSurface::G4BSplineSurface	(	G4int	u,
		G4int	v,
		G4KnotVector &	u_kv,
		G4KnotVector &	v_kv,
		G4ControlPoints &	cp
	)

Definition at line 64 of file G4BSplineSurface.cc.

  : dir(0), ord(0), k_index(0), param(0.), Rational(0)
{
  first_hit = Hit = (G4UVHit*)0;
 
  order[0] = u+1; order[1] = v+1;
 
  u_knots    = new G4KnotVector(u_kv);
  v_knots    = new G4KnotVector(v_kv);
  tmp_knots  = (G4KnotVector*)0;
  
  ctl_points =  new G4ControlPoints(cp);
}

~G4BSplineSurface()

G4BSplineSurface::~G4BSplineSurface ( )

virtual

Definition at line 80 of file G4BSplineSurface.cc.

{
  delete u_knots;
  delete v_knots;
  delete ctl_points;
  G4UVHit* temphit=Hit;
  Hit = first_hit;
  while(Hit!=(G4UVHit*)0)
  {
    Hit=Hit->GetNext();
    delete temphit;
    temphit=Hit;
  }
  // delete temphit;// remove last
  
}

Member Function Documentation

CalcBBox()

void G4BSplineSurface::CalcBBox ( )

virtual

Reimplemented from G4Surface.

Definition at line 260 of file G4BSplineSurface.cc.

{
    
  // Finds the bounds of the b-spline surface iow
  // calculates the bounds for a bounding box
  // to the surface. The bounding box is used
  // for a preliminary check of intersection.
  
  G4Point3D box_min = G4Point3D( PINFINITY);
  G4Point3D box_max = G4Point3D(-PINFINITY);        
  
  // Loop to search the whole control point mesh
  // for the minimum and maximum values for x, y and z.
  
  for(register int a = ctl_points->GetRows()-1; a>=0;a--)
    for(register int b = ctl_points->GetCols()-1; b>=0;b--)
    {
      G4Point3D tmp = ctl_points->Get3D(a,b);
      if((box_min.x()) > (tmp.x())) box_min.setX(tmp.x());
      if((box_min.y()) > (tmp.y())) box_min.setY(tmp.y());
      if((box_min.z()) > (tmp.z())) box_min.setZ(tmp.z());
      if((box_max.x()) < (tmp.x())) box_max.setX(tmp.x());
      if((box_max.y()) < (tmp.y())) box_max.setY(tmp.y());
      if((box_max.z()) < (tmp.z())) box_max.setZ(tmp.z()); 
    }
  bbox = new G4BoundingBox3D( box_min, box_max);
}

ClosestDistanceToPoint()

G4double G4BSplineSurface::ClosestDistanceToPoint ( const G4Point3D &  Pt )

virtual

Reimplemented from G4Surface.

Definition at line 641 of file G4BSplineSurface.cc.

{
  G4double PointDistance=0;
  PointDistance = ctl_points->ClosestDistanceToPoint(Pt);
  return PointDistance;
}

GetCols()

G4int G4BSplineSurface::GetCols ( ) const

inline

GetControlPoint()

G4Point3D G4BSplineSurface::GetControlPoint ( G4int  a, G4int  b  ) const

inline

GetRows()

G4int G4BSplineSurface::GetRows ( ) const

inline

GetUHit()

G4double G4BSplineSurface::GetUHit ( ) const

inlinevirtual

Reimplemented from G4Surface.

GetVHit()

G4double G4BSplineSurface::GetVHit ( ) const

inlinevirtual

Reimplemented from G4Surface.

Intersect()

G4int G4BSplineSurface::Intersect ( const G4Ray &  rayref )

virtual

Reimplemented from G4Surface.

Definition at line 98 of file G4BSplineSurface.cc.

{
  Intersected = 1;
  FindIntersections(rayref);
  G4BezierSurface *bez_ptr;
  bezier_list.MoveToFirst();
  distance = kInfinity;
  
  while( bezier_list.GetSurface() != (G4Surface*)0)
  {
    bez_ptr = (G4BezierSurface*)bezier_list.GetSurface();
    
    if(bez_ptr->IsActive())
    {
      if(distance > bez_ptr->GetDistance())
      {
    // Put data from closest bezier to b-spline data struct
    closest_hit = bez_ptr->AveragePoint();
    distance = bez_ptr->GetDistance();
      }
      else
      {
    // Set other beziers as inactive
    bez_ptr->SetActive(0);
        
    // Remove beziers that are not closest
    //  bezier_list.RemoveSurface(bez_ptr);
      }
    }
 
    bezier_list.Step();
  }
  
  bezier_list.MoveToFirst();
    
  if(bezier_list.GetSize())
    return 1;
  else
  {
    active=0;
    return 0;
  }
}

MyType()

G4int G4BSplineSurface::MyType ( ) const

inlinevirtual

Reimplemented from G4Surface.

Reset()

void G4BSplineSurface::Reset ( )

inlinevirtual

Reimplemented from G4Surface.

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The documentation for this class was generated from the following files:

• G4BSplineSurface.hh
• G4BSplineSurface.cc