Open CASCADE Technology  7.3.1.dev
Public Member Functions
ShapeCustom_BSplineRestriction Class Reference

this tool intended for aproximation 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:
Inheritance graph
[legend]

Public Member Functions

 ShapeCustom_BSplineRestriction ()
 Empty constructor. More...
 
 ShapeCustom_BSplineRestriction (const Standard_Boolean anApproxSurfaceFlag, const Standard_Boolean anApproxCurve3dFlag, const Standard_Boolean anApproxCurve2dFlag, const Standard_Real aTol3d, const Standard_Real aTol2d, const GeomAbs_Shape aContinuity3d, const GeomAbs_Shape aContinuity2d, const Standard_Integer aMaxDegree, const Standard_Integer aNbMaxSeg, const Standard_Boolean Degree, const Standard_Boolean Rational)
 Initializes with specified parameters of aproximation. More...
 
 ShapeCustom_BSplineRestriction (const Standard_Boolean anApproxSurfaceFlag, const Standard_Boolean anApproxCurve3dFlag, const Standard_Boolean anApproxCurve2dFlag, const Standard_Real aTol3d, const Standard_Real aTol2d, const GeomAbs_Shape aContinuity3d, const GeomAbs_Shape aContinuity2d, const Standard_Integer aMaxDegree, const Standard_Integer aNbMaxSeg, const Standard_Boolean Degree, const Standard_Boolean Rational, const Handle< ShapeCustom_RestrictionParameters > &aModes)
 Initializes with specified parameters of aproximation. More...
 
Standard_Boolean NewSurface (const TopoDS_Face &F, Handle< Geom_Surface > &S, TopLoc_Location &L, Standard_Real &Tol, Standard_Boolean &RevWires, Standard_Boolean &RevFace) override
 Returns Standard_True if the face <F> has been modified. In this case, <S> is the new geometric support of the face, <L> the new location,<Tol> the new tolerance.<RevWires> has to be set to Standard_True when the modification reverses the normal of the surface.(the wires have to be reversed). <RevFace> has to be set to Standard_True if the orientation of the modified face changes in the shells which contain it. More...
 
Standard_Boolean NewCurve (const TopoDS_Edge &E, Handle< Geom_Curve > &C, TopLoc_Location &L, Standard_Real &Tol) override
 Returns Standard_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 Standard_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 Standard_False, and , <L>, <Tol> are not significant. More...
 
Standard_Boolean NewCurve2d (const TopoDS_Edge &E, const TopoDS_Face &F, const TopoDS_Edge &NewE, const TopoDS_Face &NewF, Handle< Geom2d_Curve > &C, Standard_Real &Tol) override
 Returns Standard_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>. More...
 
Standard_Boolean ConvertSurface (const Handle< Geom_Surface > &aSurface, Handle< Geom_Surface > &S, const Standard_Real UF, const Standard_Real UL, const Standard_Real VF, const Standard_Real VL, const Standard_Boolean IsOf=Standard_True)
 Returns Standard_True if the surface has been modified. if flag IsOf equals Standard_True Offset surfaces are aproximated to Offset if Standard_False to BSpline. More...
 
Standard_Boolean ConvertCurve (const Handle< Geom_Curve > &aCurve, Handle< Geom_Curve > &C, const Standard_Boolean IsConvert, const Standard_Real First, const Standard_Real Last, Standard_Real &TolCur, const Standard_Boolean IsOf=Standard_True)
 Returns Standard_True if the curve has been modified. if flag IsOf equals Standard_True Offset curves are aproximated to Offset if Standard_False to BSpline. More...
 
Standard_Boolean ConvertCurve2d (const Handle< Geom2d_Curve > &aCurve, Handle< Geom2d_Curve > &C, const Standard_Boolean IsConvert, const Standard_Real First, const Standard_Real Last, Standard_Real &TolCur, const Standard_Boolean IsOf=Standard_True)
 Returns Standard_True if the pcurve has been modified. if flag IsOf equals Standard_True Offset pcurves are aproximated to Offset if Standard_False to BSpline. More...
 
void SetTol3d (const Standard_Real Tol3d)
 Sets tolerance of aproximation for curve3d and surface. More...
 
void SetTol2d (const Standard_Real Tol2d)
 Sets tolerance of aproximation for curve2d. More...
 
Standard_BooleanModifyApproxSurfaceFlag ()
 Returns (modifiable) the flag which defines whether the surface is aproximated. More...
 
Standard_BooleanModifyApproxCurve3dFlag ()
 Returns (modifiable) the flag which defines whether the curve3d is aproximated. More...
 
Standard_BooleanModifyApproxCurve2dFlag ()
 Returns (modifiable) the flag which defines whether the curve2d is aproximated. More...
 
void SetContinuity3d (const GeomAbs_Shape Continuity3d)
 Sets continuity3d for aproximation curve3d and surface. More...
 
void SetContinuity2d (const GeomAbs_Shape Continuity2d)
 Sets continuity3d for aproximation curve2d. More...
 
void SetMaxDegree (const Standard_Integer MaxDegree)
 Sets max degree for aproximation. More...
 
void SetMaxNbSegments (const Standard_Integer MaxNbSegments)
 Sets max number of segments for aproximation. More...
 
void SetPriority (const Standard_Boolean Degree)
 Sets priority for aproximation 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. More...
 
void SetConvRational (const Standard_Boolean 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. More...
 
Handle< ShapeCustom_RestrictionParametersGetRestrictionParameters () const
 Returns the container of modes which defines what geometry should be converted to BSplines. More...
 
void SetRestrictionParameters (const Handle< ShapeCustom_RestrictionParameters > &aModes)
 Sets the container of modes which defines what geometry should be converted to BSplines. More...
 
Standard_Real Curve3dError () const
 Returns error for aproximation curve3d. More...
 
Standard_Real Curve2dError () const
 Returns error for aproximation curve2d. More...
 
Standard_Real SurfaceError () const
 Returns error for aproximation surface. More...
 
Standard_Boolean NewPoint (const TopoDS_Vertex &V, gp_Pnt &P, Standard_Real &Tol) override
 Returns true if the vertex V has been modified. If V has been modified: More...
 
Standard_Boolean NewParameter (const TopoDS_Vertex &V, const TopoDS_Edge &E, Standard_Real &P, Standard_Real &Tol) override
 Returns true if the vertex V has a new parameter on the edge E. If a new parameter exists: More...
 
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>). More...
 
Standard_Real MaxErrors (Standard_Real &aCurve3dErr, Standard_Real &aCurve2dErr) const
 Returns error for aproximation surface, curve3d and curve2d. More...
 
Standard_Integer NbOfSpan () const
 Returns number for aproximation surface, curve3d and curve2d. More...
 
- Public Member Functions inherited from ShapeCustom_Modification
virtual void SetMsgRegistrator (const Handle< ShapeExtend_BasicMsgRegistrator > &msgreg)
 Sets message registrator. More...
 
Handle< ShapeExtend_BasicMsgRegistratorMsgRegistrator () const
 Returns message registrator. More...
 
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. More...
 
- Public Member Functions inherited from BRepTools_Modification
virtual Standard_Boolean NewTriangulation (const TopoDS_Face &F, Handle< Poly_Triangulation > &T)
 Returns true if the face has been modified according to changed triangulation. If the face has been modified: More...
 
virtual Standard_Boolean NewPolygon (const TopoDS_Edge &E, Handle< Poly_Polygon3D > &P)
 Returns true if the edge has been modified according to changed polygon. If the edge has been modified: More...
 
virtual Standard_Boolean NewPolygonOnTriangulation (const TopoDS_Edge &E, const TopoDS_Face &F, Handle< Poly_PolygonOnTriangulation > &P)
 Returns true if the edge has been modified according to changed polygon on triangulation. If the edge has been modified: More...
 
- Public Member Functions inherited from Standard_Transient
 Standard_Transient ()
 Empty constructor. More...
 
 Standard_Transient (const Standard_Transient &)
 Copy constructor – does nothing. More...
 
Standard_Transientoperator= (const Standard_Transient &)
 Assignment operator, needed to avoid copying reference counter. More...
 
virtual ~Standard_Transient ()
 Destructor must be virtual. More...
 
virtual void Delete () const
 Memory deallocator for transient classes. More...
 
virtual const opencascade::handle< Standard_Type > & DynamicType () const
 Returns a type descriptor about this object. More...
 
Standard_Boolean IsInstance (const opencascade::handle< Standard_Type > &theType) const
 Returns a true value if this is an instance of Type. More...
 
Standard_Boolean IsInstance (const Standard_CString theTypeName) const
 Returns a true value if this is an instance of TypeName. More...
 
Standard_Boolean 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. More...
 
Standard_Boolean IsKind (const Standard_CString 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. More...
 
Standard_TransientThis () 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. More...
 
Standard_Integer GetRefCount () const
 Get the reference counter of this object. More...
 
void IncrementRefCounter () const
 Increments the reference counter of this object. More...
 
Standard_Integer DecrementRefCounter () const
 Decrements the reference counter of this object; returns the decremented value. More...
 

Additional Inherited Members

- Public Types inherited from Standard_Transient
typedef void base_type
 Returns a type descriptor about this object. More...
 
- Static Public Member Functions inherited from Standard_Transient
static const char * get_type_name ()
 Returns a type descriptor about this object. More...
 
static const opencascade::handle< Standard_Type > & get_type_descriptor ()
 Returns type descriptor of Standard_Transient class. More...
 

Detailed Description

this tool intended for aproximation 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 Standard_Boolean  anApproxSurfaceFlag,
const Standard_Boolean  anApproxCurve3dFlag,
const Standard_Boolean  anApproxCurve2dFlag,
const Standard_Real  aTol3d,
const Standard_Real  aTol2d,
const GeomAbs_Shape  aContinuity3d,
const GeomAbs_Shape  aContinuity2d,
const Standard_Integer  aMaxDegree,
const Standard_Integer  aNbMaxSeg,
const Standard_Boolean  Degree,
const Standard_Boolean  Rational 
)

Initializes with specified parameters of aproximation.

◆ ShapeCustom_BSplineRestriction() [3/3]

ShapeCustom_BSplineRestriction::ShapeCustom_BSplineRestriction ( const Standard_Boolean  anApproxSurfaceFlag,
const Standard_Boolean  anApproxCurve3dFlag,
const Standard_Boolean  anApproxCurve2dFlag,
const Standard_Real  aTol3d,
const Standard_Real  aTol2d,
const GeomAbs_Shape  aContinuity3d,
const GeomAbs_Shape  aContinuity2d,
const Standard_Integer  aMaxDegree,
const Standard_Integer  aNbMaxSeg,
const Standard_Boolean  Degree,
const Standard_Boolean  Rational,
const Handle< ShapeCustom_RestrictionParameters > &  aModes 
)

Initializes with specified parameters of aproximation.

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()

Standard_Boolean ShapeCustom_BSplineRestriction::ConvertCurve ( const Handle< Geom_Curve > &  aCurve,
Handle< Geom_Curve > &  C,
const Standard_Boolean  IsConvert,
const Standard_Real  First,
const Standard_Real  Last,
Standard_Real TolCur,
const Standard_Boolean  IsOf = Standard_True 
)

Returns Standard_True if the curve has been modified. if flag IsOf equals Standard_True Offset curves are aproximated to Offset if Standard_False to BSpline.

◆ ConvertCurve2d()

Standard_Boolean ShapeCustom_BSplineRestriction::ConvertCurve2d ( const Handle< Geom2d_Curve > &  aCurve,
Handle< Geom2d_Curve > &  C,
const Standard_Boolean  IsConvert,
const Standard_Real  First,
const Standard_Real  Last,
Standard_Real TolCur,
const Standard_Boolean  IsOf = Standard_True 
)

Returns Standard_True if the pcurve has been modified. if flag IsOf equals Standard_True Offset pcurves are aproximated to Offset if Standard_False to BSpline.

◆ ConvertSurface()

Standard_Boolean ShapeCustom_BSplineRestriction::ConvertSurface ( const Handle< Geom_Surface > &  aSurface,
Handle< Geom_Surface > &  S,
const Standard_Real  UF,
const Standard_Real  UL,
const Standard_Real  VF,
const Standard_Real  VL,
const Standard_Boolean  IsOf = Standard_True 
)

Returns Standard_True if the surface has been modified. if flag IsOf equals Standard_True Offset surfaces are aproximated to Offset if Standard_False to BSpline.

◆ Curve2dError()

Standard_Real ShapeCustom_BSplineRestriction::Curve2dError ( ) const

Returns error for aproximation curve2d.

◆ Curve3dError()

Standard_Real ShapeCustom_BSplineRestriction::Curve3dError ( ) const

Returns error for aproximation curve3d.

◆ GetRestrictionParameters()

Handle< ShapeCustom_RestrictionParameters > ShapeCustom_BSplineRestriction::GetRestrictionParameters ( ) const

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

◆ MaxErrors()

Standard_Real ShapeCustom_BSplineRestriction::MaxErrors ( Standard_Real aCurve3dErr,
Standard_Real aCurve2dErr 
) const

Returns error for aproximation surface, curve3d and curve2d.

◆ ModifyApproxCurve2dFlag()

Standard_Boolean& ShapeCustom_BSplineRestriction::ModifyApproxCurve2dFlag ( )

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

◆ ModifyApproxCurve3dFlag()

Standard_Boolean& ShapeCustom_BSplineRestriction::ModifyApproxCurve3dFlag ( )

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

◆ ModifyApproxSurfaceFlag()

Standard_Boolean& ShapeCustom_BSplineRestriction::ModifyApproxSurfaceFlag ( )

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

◆ NbOfSpan()

Standard_Integer ShapeCustom_BSplineRestriction::NbOfSpan ( ) const

Returns number for aproximation surface, curve3d and curve2d.

◆ NewCurve()

Standard_Boolean ShapeCustom_BSplineRestriction::NewCurve ( const TopoDS_Edge E,
Handle< Geom_Curve > &  C,
TopLoc_Location L,
Standard_Real Tol 
)
overridevirtual

Returns Standard_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 Standard_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 Standard_False, and , <L>, <Tol> are not significant.

Implements BRepTools_Modification.

◆ NewCurve2d()

Standard_Boolean ShapeCustom_BSplineRestriction::NewCurve2d ( const TopoDS_Edge E,
const TopoDS_Face F,
const TopoDS_Edge NewE,
const TopoDS_Face NewF,
Handle< Geom2d_Curve > &  C,
Standard_Real Tol 
)
overridevirtual

Returns Standard_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 Standard_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 usefull.

Implements BRepTools_Modification.

◆ NewParameter()

Standard_Boolean ShapeCustom_BSplineRestriction::NewParameter ( const TopoDS_Vertex V,
const TopoDS_Edge E,
Standard_Real P,
Standard_Real 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()

Standard_Boolean ShapeCustom_BSplineRestriction::NewPoint ( const TopoDS_Vertex V,
gp_Pnt P,
Standard_Real 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()

Standard_Boolean ShapeCustom_BSplineRestriction::NewSurface ( const TopoDS_Face F,
Handle< Geom_Surface > &  S,
TopLoc_Location L,
Standard_Real Tol,
Standard_Boolean RevWires,
Standard_Boolean RevFace 
)
overridevirtual

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

Otherwise, returns Standard_False, and <S>, <L>, <Tol> , <RevWires> ,<RevFace> are not significant.

Implements BRepTools_Modification.

◆ SetContinuity2d()

void ShapeCustom_BSplineRestriction::SetContinuity2d ( const GeomAbs_Shape  Continuity2d)

Sets continuity3d for aproximation curve2d.

◆ SetContinuity3d()

void ShapeCustom_BSplineRestriction::SetContinuity3d ( const GeomAbs_Shape  Continuity3d)

Sets continuity3d for aproximation curve3d and surface.

◆ SetConvRational()

void ShapeCustom_BSplineRestriction::SetConvRational ( const Standard_Boolean  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 Standard_Integer  MaxDegree)

Sets max degree for aproximation.

◆ SetMaxNbSegments()

void ShapeCustom_BSplineRestriction::SetMaxNbSegments ( const Standard_Integer  MaxNbSegments)

Sets max number of segments for aproximation.

◆ SetPriority()

void ShapeCustom_BSplineRestriction::SetPriority ( const Standard_Boolean  Degree)

Sets priority for aproximation 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 Handle< ShapeCustom_RestrictionParameters > &  aModes)

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

◆ SetTol2d()

void ShapeCustom_BSplineRestriction::SetTol2d ( const Standard_Real  Tol2d)

Sets tolerance of aproximation for curve2d.

◆ SetTol3d()

void ShapeCustom_BSplineRestriction::SetTol3d ( const Standard_Real  Tol3d)

Sets tolerance of aproximation for curve3d and surface.

◆ SurfaceError()

Standard_Real ShapeCustom_BSplineRestriction::SurfaceError ( ) const

Returns error for aproximation surface.


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