this tool intended for approximation surfaces, curves and pcurves with specified degree , max number of segments, tolerance 2d, tolerance 3d. Specified continuity can be reduced if approximation with specified continuity was not done. More...

#include <ShapeCustom_BSplineRestriction.hxx>

Inheritance diagram for ShapeCustom_BSplineRestriction:

[legend]

Public Member Functions
	ShapeCustom_BSplineRestriction ()
	Empty constructor.

	ShapeCustom_BSplineRestriction (const bool anApproxSurfaceFlag, const bool anApproxCurve3dFlag, const bool anApproxCurve2dFlag, const double aTol3d, const double aTol2d, const GeomAbs_Shape aContinuity3d, const GeomAbs_Shape aContinuity2d, const int aMaxDegree, const int aNbMaxSeg, const bool Degree, const bool Rational)
	Initializes with specified parameters of approximation.

	ShapeCustom_BSplineRestriction (const bool anApproxSurfaceFlag, const bool anApproxCurve3dFlag, const bool anApproxCurve2dFlag, const double aTol3d, const double aTol2d, const GeomAbs_Shape aContinuity3d, const GeomAbs_Shape aContinuity2d, const int aMaxDegree, const int aNbMaxSeg, const bool Degree, const bool Rational, const occ::handle< ShapeCustom_RestrictionParameters > &aModes)
	Initializes with specified parameters of approximation.

bool	NewSurface (const TopoDS_Face &F, occ::handle< Geom_Surface > &S, TopLoc_Location &L, double &Tol, bool &RevWires, bool &RevFace) override
	Returns true if the face <F> has been modified. In this case, is the new geometric support of the face, <L> the new location, <Tol> the new tolerance. <RevWires> has to be set to true when the modification reverses the normal of the surface. (the wires have to be reversed). <RevFace> has to be set to true if the orientation of the modified face changes in the shells which contain it.

bool	NewCurve (const TopoDS_Edge &E, occ::handle< Geom_Curve > &C, TopLoc_Location &L, double &Tol) override
	Returns true if curve from the edge <E> has been modified. In this case, `is the new geometric support of the edge, <L> the new location, <Tol> the new tolerance. Otherwise, returns true if Surface is modified or one of pcurves of edge is modified. In this case C is copy of geometric support of the edge. In other cases returns false, and , <L>, <Tol> are not significant.`

bool	NewCurve2d (const TopoDS_Edge &E, const TopoDS_Face &F, const TopoDS_Edge &NewE, const TopoDS_Face &NewF, occ::handle< Geom2d_Curve > &C, double &Tol) override
	Returns true if the edge <E> has been modified. In this case,if curve on the surface is modified, `is the new geometric support of the edge, <L> the new location, <Tol> the new tolerance. If curve on the surface is not modified C is copy curve on surface from the edge <E>.`

bool	ConvertSurface (const occ::handle< Geom_Surface > &aSurface, occ::handle< Geom_Surface > &S, const double UF, const double UL, const double VF, const double VL, const bool IsOf=true)
	Returns true if the surface has been modified. if flag IsOf equals true Offset surfaces are approximated to Offset if false to BSpline.

bool	ConvertCurve (const occ::handle< Geom_Curve > &aCurve, occ::handle< Geom_Curve > &C, const bool IsConvert, const double First, const double Last, double &TolCur, const bool IsOf=true)
	Returns true if the curve has been modified. if flag IsOf equals true Offset curves are approximated to Offset if false to BSpline.

bool	ConvertCurve2d (const occ::handle< Geom2d_Curve > &aCurve, occ::handle< Geom2d_Curve > &C, const bool IsConvert, const double First, const double Last, double &TolCur, const bool IsOf=true)
	Returns true if the pcurve has been modified. if flag IsOf equals true Offset pcurves are approximated to Offset if false to BSpline.

void	SetTol3d (const double Tol3d)
	Sets tolerance of approximation for curve3d and surface.

void	SetTol2d (const double Tol2d)
	Sets tolerance of approximation for curve2d.

bool &	ModifyApproxSurfaceFlag ()
	Returns (modifiable) the flag which defines whether the surface is approximated.

bool &	ModifyApproxCurve3dFlag ()
	Returns (modifiable) the flag which defines whether the curve3d is approximated.

bool &	ModifyApproxCurve2dFlag ()
	Returns (modifiable) the flag which defines whether the curve2d is approximated.

void	SetContinuity3d (const GeomAbs_Shape Continuity3d)
	Sets continuity3d for approximation curve3d and surface.

void	SetContinuity2d (const GeomAbs_Shape Continuity2d)
	Sets continuity3d for approximation curve2d.

void	SetMaxDegree (const int MaxDegree)
	Sets max degree for approximation.

void	SetMaxNbSegments (const int MaxNbSegments)
	Sets max number of segments for approximation.

void	SetPriority (const bool Degree)
	Sets priority for approximation curves and surface. If Degree is True approximation is made with degree less then specified MaxDegree at the expense of number of spanes. If Degree is False approximation is made with number of spans less then specified MaxNbSegment at the expense of specified MaxDegree.

void	SetConvRational (const bool Rational)
	Sets flag for define if rational BSpline or Bezier is converted to polynomial. If Rational is True approximation for rational BSpline and Bezier is made to polynomial even if degree is less then MaxDegree and number of spans is less then specified MaxNbSegment.

occ::handle< ShapeCustom_RestrictionParameters >	GetRestrictionParameters () const
	Returns the container of modes which defines what geometry should be converted to BSplines.

void	SetRestrictionParameters (const occ::handle< ShapeCustom_RestrictionParameters > &aModes)
	Sets the container of modes which defines what geometry should be converted to BSplines.

double	Curve3dError () const
	Returns error for approximation curve3d.

double	Curve2dError () const
	Returns error for approximation curve2d.

double	SurfaceError () const
	Returns error for approximation surface.

bool	NewPoint (const TopoDS_Vertex &V, gp_Pnt &P, double &Tol) override
	Returns true if the vertex V has been modified. If V has been modified:

bool	NewParameter (const TopoDS_Vertex &V, const TopoDS_Edge &E, double &P, double &Tol) override
	Returns true if the vertex V has a new parameter on the edge E. If a new parameter exists:

GeomAbs_Shape	Continuity (const TopoDS_Edge &E, const TopoDS_Face &F1, const TopoDS_Face &F2, const TopoDS_Edge &NewE, const TopoDS_Face &NewF1, const TopoDS_Face &NewF2) override
	Returns the continuity of <NewE> between <NewF1> and <NewF2>. <NewE> is the new edge created from <E>. <NewF1> (resp. <NewF2>) is the new face created from <F1> (resp. <F2>).

double	MaxErrors (double &aCurve3dErr, double &aCurve2dErr) const
	Returns error for approximation surface, curve3d and curve2d.

int	NbOfSpan () const
	Returns number for approximation surface, curve3d and curve2d.

Public Member Functions inherited from ShapeCustom_Modification
virtual void	SetMsgRegistrator (const occ::handle< ShapeExtend_BasicMsgRegistrator > &msgreg)
	Sets message registrator.

occ::handle< ShapeExtend_BasicMsgRegistrator >	MsgRegistrator () const
	Returns message registrator.

void	SendMsg (const TopoDS_Shape &shape, const Message_Msg &message, const Message_Gravity gravity=Message_Info) const
	Sends a message to be attached to the shape. Calls corresponding message of message registrator.

Public Member Functions inherited from BRepTools_Modification
virtual bool	NewTriangulation (const TopoDS_Face &F, occ::handle< Poly_Triangulation > &T)
	Returns true if the face has been modified according to changed triangulation. If the face has been modified:

virtual bool	NewPolygon (const TopoDS_Edge &E, occ::handle< Poly_Polygon3D > &P)
	Returns true if the edge has been modified according to changed polygon. If the edge has been modified:

virtual bool	NewPolygonOnTriangulation (const TopoDS_Edge &E, const TopoDS_Face &F, occ::handle< Poly_PolygonOnTriangulation > &P)
	Returns true if the edge has been modified according to changed polygon on triangulation. If the edge has been modified:

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor.

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing.

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter.

virtual	~Standard_Transient ()=default
	Destructor must be virtual.

virtual const opencascade::handle< Standard_Type > &	DynamicType () const
	Returns a type descriptor about this object.

bool	IsInstance (const opencascade::handle< Standard_Type > &theType) const
	Returns a true value if this is an instance of Type.

bool	IsInstance (const char *const theTypeName) const
	Returns a true value if this is an instance of TypeName.

bool	IsKind (const opencascade::handle< Standard_Type > &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

bool	IsKind (const char *const theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism.

Standard_Transient *	This () const
	Returns non-const pointer to this object (like const_cast). For protection against creating handle to objects allocated in stack or call from constructor, it will raise exception Standard_ProgramError if reference counter is zero.

int	GetRefCount () const noexcept
	Get the reference counter of this object.

void	IncrementRefCounter () noexcept
	Increments the reference counter of this object. Uses relaxed memory ordering since incrementing only requires atomicity, not synchronization with other memory operations.

int	DecrementRefCounter () noexcept
	Decrements the reference counter of this object; returns the decremented value. Uses release ordering for the decrement to ensure all writes to the object are visible before the count reaches zero. An acquire fence is added only when the count reaches zero, ensuring proper synchronization before deletion. This is more efficient than using acq_rel for every decrement.

virtual void	Delete () const
	Memory deallocator for transient classes.

Additional Inherited Members
Public Types inherited from Standard_Transient
typedef void	base_type
	Returns a type descriptor about this object.

Static Public Member Functions inherited from Standard_Transient
static constexpr const char *	get_type_name ()
	Returns a type descriptor about this object.

static const opencascade::handle< Standard_Type > &	get_type_descriptor ()
	Returns type descriptor of Standard_Transient class.

Detailed Description

this tool intended for approximation surfaces, curves and pcurves with specified degree , max number of segments, tolerance 2d, tolerance 3d. Specified continuity can be reduced if approximation with specified continuity was not done.

Constructor & Destructor Documentation

◆ ShapeCustom_BSplineRestriction() [1/3]

ShapeCustom_BSplineRestriction::ShapeCustom_BSplineRestriction ( )

Empty constructor.

◆ ShapeCustom_BSplineRestriction() [2/3]

ShapeCustom_BSplineRestriction::ShapeCustom_BSplineRestriction	(	const bool	anApproxSurfaceFlag,
		const bool	anApproxCurve3dFlag,
		const bool	anApproxCurve2dFlag,
		const double	aTol3d,
		const double	aTol2d,
		const GeomAbs_Shape	aContinuity3d,
		const GeomAbs_Shape	aContinuity2d,
		const int	aMaxDegree,
		const int	aNbMaxSeg,
		const bool	Degree,
		const bool	Rational )

Initializes with specified parameters of approximation.

◆ ShapeCustom_BSplineRestriction() [3/3]

ShapeCustom_BSplineRestriction::ShapeCustom_BSplineRestriction	(	const bool	anApproxSurfaceFlag,
		const bool	anApproxCurve3dFlag,
		const bool	anApproxCurve2dFlag,
		const double	aTol3d,
		const double	aTol2d,
		const GeomAbs_Shape	aContinuity3d,
		const GeomAbs_Shape	aContinuity2d,
		const int	aMaxDegree,
		const int	aNbMaxSeg,
		const bool	Degree,
		const bool	Rational,
		const occ::handle< ShapeCustom_RestrictionParameters > &	aModes )

Initializes with specified parameters of approximation.

Member Function Documentation

◆ Continuity()

GeomAbs_Shape ShapeCustom_BSplineRestriction::Continuity	(	const TopoDS_Edge &	E,
		const TopoDS_Face &	F1,
		const TopoDS_Face &	F2,
		const TopoDS_Edge &	NewE,
		const TopoDS_Face &	NewF1,
		const TopoDS_Face &	NewF2 )

overridevirtual

Returns the continuity of <NewE> between <NewF1> and <NewF2>. <NewE> is the new edge created from <E>. <NewF1> (resp. <NewF2>) is the new face created from <F1> (resp. <F2>).

Implements BRepTools_Modification.

◆ ConvertCurve()

bool ShapeCustom_BSplineRestriction::ConvertCurve	(	const occ::handle< Geom_Curve > &	aCurve,
		occ::handle< Geom_Curve > &	C,
		const bool	IsConvert,
		const double	First,
		const double	Last,
		double &	TolCur,
		const bool	IsOf = true )

Returns true if the curve has been modified. if flag IsOf equals true Offset curves are approximated to Offset if false to BSpline.

◆ ConvertCurve2d()

bool ShapeCustom_BSplineRestriction::ConvertCurve2d	(	const occ::handle< Geom2d_Curve > &	aCurve,
		occ::handle< Geom2d_Curve > &	C,
		const bool	IsConvert,
		const double	First,
		const double	Last,
		double &	TolCur,
		const bool	IsOf = true )

Returns true if the pcurve has been modified. if flag IsOf equals true Offset pcurves are approximated to Offset if false to BSpline.

◆ ConvertSurface()

bool ShapeCustom_BSplineRestriction::ConvertSurface	(	const occ::handle< Geom_Surface > &	aSurface,
		occ::handle< Geom_Surface > &	S,
		const double	UF,
		const double	UL,
		const double	VF,
		const double	VL,
		const bool	IsOf = true )

Returns true if the surface has been modified. if flag IsOf equals true Offset surfaces are approximated to Offset if false to BSpline.

◆ Curve2dError()

double ShapeCustom_BSplineRestriction::Curve2dError ( ) const

Returns error for approximation curve2d.

◆ Curve3dError()

double ShapeCustom_BSplineRestriction::Curve3dError ( ) const

Returns error for approximation curve3d.

◆ GetRestrictionParameters()

occ::handle< ShapeCustom_RestrictionParameters > ShapeCustom_BSplineRestriction::GetRestrictionParameters ( ) const

Returns the container of modes which defines what geometry should be converted to BSplines.

◆ MaxErrors()

double ShapeCustom_BSplineRestriction::MaxErrors	(	double &	aCurve3dErr,
		double &	aCurve2dErr ) const

Returns error for approximation surface, curve3d and curve2d.

◆ ModifyApproxCurve2dFlag()

bool & ShapeCustom_BSplineRestriction::ModifyApproxCurve2dFlag ( )

Returns (modifiable) the flag which defines whether the curve2d is approximated.

◆ ModifyApproxCurve3dFlag()

bool & ShapeCustom_BSplineRestriction::ModifyApproxCurve3dFlag ( )

Returns (modifiable) the flag which defines whether the curve3d is approximated.

◆ ModifyApproxSurfaceFlag()

bool & ShapeCustom_BSplineRestriction::ModifyApproxSurfaceFlag ( )

Returns (modifiable) the flag which defines whether the surface is approximated.

◆ NbOfSpan()

int ShapeCustom_BSplineRestriction::NbOfSpan ( ) const

Returns number for approximation surface, curve3d and curve2d.

◆ NewCurve()

bool ShapeCustom_BSplineRestriction::NewCurve	(	const TopoDS_Edge &	E,
		occ::handle< Geom_Curve > &	C,
		TopLoc_Location &	L,
		double &	Tol )

overridevirtual

Returns true if curve from the edge <E> has been modified. In this case, is the new geometric support of the edge, <L> the new location, <Tol> the new tolerance. Otherwise, returns true if Surface is modified or one of pcurves of edge is modified. In this case C is copy of geometric support of the edge. In other cases returns false, and , <L>, <Tol> are not significant.

Implements BRepTools_Modification.

◆ NewCurve2d()

bool ShapeCustom_BSplineRestriction::NewCurve2d	(	const TopoDS_Edge &	E,
		const TopoDS_Face &	F,
		const TopoDS_Edge &	NewE,
		const TopoDS_Face &	NewF,
		occ::handle< Geom2d_Curve > &	C,
		double &	Tol )

overridevirtual

Returns true if the edge <E> has been modified. In this case,if curve on the surface is modified, is the new geometric support of the edge, <L> the new location, <Tol> the new tolerance. If curve on the surface is not modified C is copy curve on surface from the edge <E>.

Otherwise, returns false, and , <L>, <Tol> are not significant.

<NewE> is the new edge created from <E>. <NewF> is the new face created from <F>. They may be useful.

Implements BRepTools_Modification.

◆ NewParameter()

bool ShapeCustom_BSplineRestriction::NewParameter	(	const TopoDS_Vertex &	V,
		const TopoDS_Edge &	E,
		double &	P,
		double &	Tol )

overridevirtual

Returns true if the vertex V has a new parameter on the edge E. If a new parameter exists:

P is the parameter, and
Tol is the new tolerance. If there is no new parameter this function returns false, and the values of P and Tol are not significant.

Implements BRepTools_Modification.

◆ NewPoint()

bool ShapeCustom_BSplineRestriction::NewPoint	(	const TopoDS_Vertex &	V,
		gp_Pnt &	P,
		double &	Tol )

overridevirtual

Returns true if the vertex V has been modified. If V has been modified:

P is the new geometry of the vertex, and
Tol is the new tolerance. If the vertex has not been modified this function returns false, and the values of P and Tol are not significant.

Implements BRepTools_Modification.

◆ NewSurface()

bool ShapeCustom_BSplineRestriction::NewSurface	(	const TopoDS_Face &	F,
		occ::handle< Geom_Surface > &	S,
		TopLoc_Location &	L,
		double &	Tol,
		bool &	RevWires,
		bool &	RevFace )

overridevirtual

Returns true if the face <F> has been modified. In this case, is the new geometric support of the face, <L> the new location, <Tol> the new tolerance. <RevWires> has to be set to true when the modification reverses the normal of the surface. (the wires have to be reversed). <RevFace> has to be set to true if the orientation of the modified face changes in the shells which contain it.

Otherwise, returns false, and ~~, <L>, <Tol>, <RevWires>, <RevFace> are not significant.~~

Implements BRepTools_Modification.

◆ SetContinuity2d()

void ShapeCustom_BSplineRestriction::SetContinuity2d ( const GeomAbs_Shape Continuity2d )

Sets continuity3d for approximation curve2d.

◆ SetContinuity3d()

void ShapeCustom_BSplineRestriction::SetContinuity3d ( const GeomAbs_Shape Continuity3d )

Sets continuity3d for approximation curve3d and surface.

◆ SetConvRational()

void ShapeCustom_BSplineRestriction::SetConvRational ( const bool Rational )

Sets flag for define if rational BSpline or Bezier is converted to polynomial. If Rational is True approximation for rational BSpline and Bezier is made to polynomial even if degree is less then MaxDegree and number of spans is less then specified MaxNbSegment.

◆ SetMaxDegree()

void ShapeCustom_BSplineRestriction::SetMaxDegree ( const int MaxDegree )

Sets max degree for approximation.

◆ SetMaxNbSegments()

void ShapeCustom_BSplineRestriction::SetMaxNbSegments ( const int MaxNbSegments )

Sets max number of segments for approximation.

◆ SetPriority()

void ShapeCustom_BSplineRestriction::SetPriority ( const bool Degree )

Sets priority for approximation curves and surface. If Degree is True approximation is made with degree less then specified MaxDegree at the expense of number of spanes. If Degree is False approximation is made with number of spans less then specified MaxNbSegment at the expense of specified MaxDegree.

◆ SetRestrictionParameters()

void ShapeCustom_BSplineRestriction::SetRestrictionParameters ( const occ::handle< ShapeCustom_RestrictionParameters > & aModes )

Sets the container of modes which defines what geometry should be converted to BSplines.

◆ SetTol2d()

void ShapeCustom_BSplineRestriction::SetTol2d ( const double Tol2d )

Sets tolerance of approximation for curve2d.

◆ SetTol3d()

void ShapeCustom_BSplineRestriction::SetTol3d ( const double Tol3d )

Sets tolerance of approximation for curve3d and surface.

◆ SurfaceError()

double ShapeCustom_BSplineRestriction::SurfaceError ( ) const

Returns error for approximation surface.

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

ShapeCustom_BSplineRestriction.hxx

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ShapeCustom_BSplineRestriction() [1/3]

◆ ShapeCustom_BSplineRestriction() [2/3]

◆ ShapeCustom_BSplineRestriction() [3/3]

Member Function Documentation

◆ Continuity()

◆ ConvertCurve()

◆ ConvertCurve2d()

◆ ConvertSurface()

◆ Curve2dError()

◆ Curve3dError()

◆ GetRestrictionParameters()

◆ MaxErrors()

◆ ModifyApproxCurve2dFlag()

◆ ModifyApproxCurve3dFlag()

◆ ModifyApproxSurfaceFlag()

◆ NbOfSpan()

◆ NewCurve()

◆ NewCurve2d()

◆ NewParameter()

◆ NewPoint()

◆ NewSurface()

◆ SetContinuity2d()

◆ SetContinuity3d()

◆ SetConvRational()

◆ SetMaxDegree()

◆ SetMaxNbSegments()

◆ SetPriority()

◆ SetRestrictionParameters()

◆ SetTol2d()

◆ SetTol3d()

◆ SurfaceError()