Open CASCADE Technology  7.7.0.dev
Public Member Functions

GeomFill_NSections Class Reference

Define a Section Law by N Sections. More...

#include <GeomFill_NSections.hxx>

Inheritance diagram for GeomFill_NSections:
Inheritance graph
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Public Member Functions

 GeomFill_NSections (const TColGeom_SequenceOfCurve &NC)
 Make a SectionLaw with N Curves. More...
 
 GeomFill_NSections (const TColGeom_SequenceOfCurve &NC, const TColStd_SequenceOfReal &NP)
 Make a SectionLaw with N Curves and N associated parameters. More...
 
 GeomFill_NSections (const TColGeom_SequenceOfCurve &NC, const TColStd_SequenceOfReal &NP, const Standard_Real UF, const Standard_Real UL)
 Make a SectionLaw with N Curves and N associated parameters. UF and UL are the parametric bounds of the NSections. More...
 
 GeomFill_NSections (const TColGeom_SequenceOfCurve &NC, const TColStd_SequenceOfReal &NP, const Standard_Real UF, const Standard_Real UL, const Standard_Real VF, const Standard_Real VL)
 Make a SectionLaw with N Curves and N associated parameters. UF and UL are the parametric bounds of the NSections VF and VL are the parametric bounds of the path. More...
 
 GeomFill_NSections (const TColGeom_SequenceOfCurve &NC, const GeomFill_SequenceOfTrsf &Trsfs, const TColStd_SequenceOfReal &NP, const Standard_Real UF, const Standard_Real UL, const Standard_Real VF, const Standard_Real VL, const Handle< Geom_BSplineSurface > &Surf)
 Make a SectionLaw with N Curves and N associated parameters. UF and UL are the parametric bounds of the NSections VF and VL are the parametric bounds of the path UF and UL are the parametric bounds of the NSections Surf is a reference surface used by BRepFill_NSections. More...
 
virtual Standard_Boolean D0 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColStd_Array1OfReal &Weigths) override
 compute the section for v = param More...
 
virtual Standard_Boolean D1 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColgp_Array1OfVec &DPoles, TColStd_Array1OfReal &Weigths, TColStd_Array1OfReal &DWeigths) override
 compute the first derivative in v direction of the section for v = param Warning : It used only for C1 or C2 approximation More...
 
virtual Standard_Boolean D2 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColgp_Array1OfVec &DPoles, TColgp_Array1OfVec &D2Poles, TColStd_Array1OfReal &Weigths, TColStd_Array1OfReal &DWeigths, TColStd_Array1OfReal &D2Weigths) override
 compute the second derivative in v direction of the section for v = param Warning : It used only for C2 approximation More...
 
void SetSurface (const Handle< Geom_BSplineSurface > &RefSurf)
 Sets the reference surface. More...
 
void ComputeSurface ()
 Computes the surface. More...
 
virtual Handle< Geom_BSplineSurfaceBSplineSurface () const override
 give if possible an bspline Surface, like iso-v are the section. If it is not possible this methode have to get an Null Surface. Is it the default implementation. More...
 
virtual void SectionShape (Standard_Integer &NbPoles, Standard_Integer &NbKnots, Standard_Integer &Degree) const override
 get the format of an section More...
 
virtual void Knots (TColStd_Array1OfReal &TKnots) const override
 get the Knots of the section More...
 
virtual void Mults (TColStd_Array1OfInteger &TMults) const override
 get the Multplicities of the section More...
 
virtual Standard_Boolean IsRational () const override
 Returns if the sections are rationnal or not. More...
 
virtual Standard_Boolean IsUPeriodic () const override
 Returns if the sections are periodic or not. More...
 
virtual Standard_Boolean IsVPeriodic () const override
 Returns if the law isperiodic or not. More...
 
virtual Standard_Integer NbIntervals (const GeomAbs_Shape S) const override
 Returns the number of intervals for continuity . May be one if Continuity(me) >= More...
 
virtual void Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const override
 Stores in <T> the parameters bounding the intervals of continuity . More...
 
virtual void SetInterval (const Standard_Real First, const Standard_Real Last) override
 Sets the bounds of the parametric interval on the function This determines the derivatives in these values if the function is not Cn. More...
 
virtual void GetInterval (Standard_Real &First, Standard_Real &Last) const override
 Gets the bounds of the parametric interval on the function. More...
 
virtual void GetDomain (Standard_Real &First, Standard_Real &Last) const override
 Gets the bounds of the function parametric domain. Warning: This domain it is not modified by the SetValue method. More...
 
virtual void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, TColStd_Array1OfReal &Tol3d) const override
 Returns the tolerances associated at each poles to reach in approximation, to satisfy: BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface. More...
 
virtual gp_Pnt BarycentreOfSurf () const override
 Get the barycentre of Surface. An very poor estimation is sufficient. This information is useful to perform well conditioned rational approximation. Warning: Used only if <me> IsRational. More...
 
virtual Standard_Real MaximalSection () const override
 Returns the length of the greater section. This information is useful to G1's control. Warning: With an little value, approximation can be slower. More...
 
virtual void GetMinimalWeight (TColStd_Array1OfReal &Weigths) const override
 Compute the minimal value of weight for each poles in all sections. This information is useful to control error in rational approximation. Warning: Used only if <me> IsRational. More...
 
virtual Standard_Boolean IsConstant (Standard_Real &Error) const override
 return True If the Law isConstant More...
 
virtual Handle< Geom_CurveConstantSection () const override
 Return the constant Section if <me> IsConstant. More...
 
virtual Standard_Boolean IsConicalLaw (Standard_Real &Error) const override
 Returns True if all section are circle, with same plane,same center and linear radius evolution Return False by Default. More...
 
virtual Handle< Geom_CurveCirclSection (const Standard_Real Param) const override
 Return the circle section at parameter , if <me> a IsConicalLaw. More...
 
- Public Member Functions inherited from GeomFill_SectionLaw
virtual void SetTolerance (const Standard_Real Tol3d, const Standard_Real Tol2d)
 Is useful, if (me) have to run numerical algorithm to perform D0, D1 or D2 The default implementation make nothing. 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

Define a Section Law by N Sections.

Constructor & Destructor Documentation

◆ GeomFill_NSections() [1/5]

GeomFill_NSections::GeomFill_NSections ( const TColGeom_SequenceOfCurve NC)

Make a SectionLaw with N Curves.

◆ GeomFill_NSections() [2/5]

GeomFill_NSections::GeomFill_NSections ( const TColGeom_SequenceOfCurve NC,
const TColStd_SequenceOfReal NP 
)

Make a SectionLaw with N Curves and N associated parameters.

◆ GeomFill_NSections() [3/5]

GeomFill_NSections::GeomFill_NSections ( const TColGeom_SequenceOfCurve NC,
const TColStd_SequenceOfReal NP,
const Standard_Real  UF,
const Standard_Real  UL 
)

Make a SectionLaw with N Curves and N associated parameters. UF and UL are the parametric bounds of the NSections.

◆ GeomFill_NSections() [4/5]

GeomFill_NSections::GeomFill_NSections ( const TColGeom_SequenceOfCurve NC,
const TColStd_SequenceOfReal NP,
const Standard_Real  UF,
const Standard_Real  UL,
const Standard_Real  VF,
const Standard_Real  VL 
)

Make a SectionLaw with N Curves and N associated parameters. UF and UL are the parametric bounds of the NSections VF and VL are the parametric bounds of the path.

◆ GeomFill_NSections() [5/5]

GeomFill_NSections::GeomFill_NSections ( const TColGeom_SequenceOfCurve NC,
const GeomFill_SequenceOfTrsf Trsfs,
const TColStd_SequenceOfReal NP,
const Standard_Real  UF,
const Standard_Real  UL,
const Standard_Real  VF,
const Standard_Real  VL,
const Handle< Geom_BSplineSurface > &  Surf 
)

Make a SectionLaw with N Curves and N associated parameters. UF and UL are the parametric bounds of the NSections VF and VL are the parametric bounds of the path UF and UL are the parametric bounds of the NSections Surf is a reference surface used by BRepFill_NSections.

Member Function Documentation

◆ BarycentreOfSurf()

virtual gp_Pnt GeomFill_NSections::BarycentreOfSurf ( ) const
overridevirtual

Get the barycentre of Surface. An very poor estimation is sufficient. This information is useful to perform well conditioned rational approximation. Warning: Used only if <me> IsRational.

Reimplemented from GeomFill_SectionLaw.

◆ BSplineSurface()

virtual Handle< Geom_BSplineSurface > GeomFill_NSections::BSplineSurface ( ) const
overridevirtual

give if possible an bspline Surface, like iso-v are the section. If it is not possible this methode have to get an Null Surface. Is it the default implementation.

Reimplemented from GeomFill_SectionLaw.

◆ CirclSection()

virtual Handle< Geom_Curve > GeomFill_NSections::CirclSection ( const Standard_Real  Param) const
overridevirtual

Return the circle section at parameter , if <me> a IsConicalLaw.

Reimplemented from GeomFill_SectionLaw.

◆ ComputeSurface()

void GeomFill_NSections::ComputeSurface ( )

Computes the surface.

◆ ConstantSection()

virtual Handle< Geom_Curve > GeomFill_NSections::ConstantSection ( ) const
overridevirtual

Return the constant Section if <me> IsConstant.

Reimplemented from GeomFill_SectionLaw.

◆ D0()

virtual Standard_Boolean GeomFill_NSections::D0 ( const Standard_Real  Param,
TColgp_Array1OfPnt Poles,
TColStd_Array1OfReal Weigths 
)
overridevirtual

compute the section for v = param

Implements GeomFill_SectionLaw.

◆ D1()

virtual Standard_Boolean GeomFill_NSections::D1 ( const Standard_Real  Param,
TColgp_Array1OfPnt Poles,
TColgp_Array1OfVec DPoles,
TColStd_Array1OfReal Weigths,
TColStd_Array1OfReal DWeigths 
)
overridevirtual

compute the first derivative in v direction of the section for v = param Warning : It used only for C1 or C2 approximation

Reimplemented from GeomFill_SectionLaw.

◆ D2()

virtual Standard_Boolean GeomFill_NSections::D2 ( const Standard_Real  Param,
TColgp_Array1OfPnt Poles,
TColgp_Array1OfVec DPoles,
TColgp_Array1OfVec D2Poles,
TColStd_Array1OfReal Weigths,
TColStd_Array1OfReal DWeigths,
TColStd_Array1OfReal D2Weigths 
)
overridevirtual

compute the second derivative in v direction of the section for v = param Warning : It used only for C2 approximation

Reimplemented from GeomFill_SectionLaw.

◆ GetDomain()

virtual void GeomFill_NSections::GetDomain ( Standard_Real First,
Standard_Real Last 
) const
overridevirtual

Gets the bounds of the function parametric domain. Warning: This domain it is not modified by the SetValue method.

Implements GeomFill_SectionLaw.

◆ GetInterval()

virtual void GeomFill_NSections::GetInterval ( Standard_Real First,
Standard_Real Last 
) const
overridevirtual

Gets the bounds of the parametric interval on the function.

Implements GeomFill_SectionLaw.

◆ GetMinimalWeight()

virtual void GeomFill_NSections::GetMinimalWeight ( TColStd_Array1OfReal Weigths) const
overridevirtual

Compute the minimal value of weight for each poles in all sections. This information is useful to control error in rational approximation. Warning: Used only if <me> IsRational.

Reimplemented from GeomFill_SectionLaw.

◆ GetTolerance()

virtual void GeomFill_NSections::GetTolerance ( const Standard_Real  BoundTol,
const Standard_Real  SurfTol,
const Standard_Real  AngleTol,
TColStd_Array1OfReal Tol3d 
) const
overridevirtual

Returns the tolerances associated at each poles to reach in approximation, to satisfy: BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface.

Implements GeomFill_SectionLaw.

◆ Intervals()

virtual void GeomFill_NSections::Intervals ( TColStd_Array1OfReal T,
const GeomAbs_Shape  S 
) const
overridevirtual

Stores in <T> the parameters bounding the intervals of continuity .

The array must provide enough room to accommodate for the parameters. i.e. T.Length() > NbIntervals()

Implements GeomFill_SectionLaw.

◆ IsConicalLaw()

virtual Standard_Boolean GeomFill_NSections::IsConicalLaw ( Standard_Real Error) const
overridevirtual

Returns True if all section are circle, with same plane,same center and linear radius evolution Return False by Default.

Reimplemented from GeomFill_SectionLaw.

◆ IsConstant()

virtual Standard_Boolean GeomFill_NSections::IsConstant ( Standard_Real Error) const
overridevirtual

return True If the Law isConstant

Reimplemented from GeomFill_SectionLaw.

◆ IsRational()

virtual Standard_Boolean GeomFill_NSections::IsRational ( ) const
overridevirtual

Returns if the sections are rationnal or not.

Implements GeomFill_SectionLaw.

◆ IsUPeriodic()

virtual Standard_Boolean GeomFill_NSections::IsUPeriodic ( ) const
overridevirtual

Returns if the sections are periodic or not.

Implements GeomFill_SectionLaw.

◆ IsVPeriodic()

virtual Standard_Boolean GeomFill_NSections::IsVPeriodic ( ) const
overridevirtual

Returns if the law isperiodic or not.

Implements GeomFill_SectionLaw.

◆ Knots()

virtual void GeomFill_NSections::Knots ( TColStd_Array1OfReal TKnots) const
overridevirtual

get the Knots of the section

Implements GeomFill_SectionLaw.

◆ MaximalSection()

virtual Standard_Real GeomFill_NSections::MaximalSection ( ) const
overridevirtual

Returns the length of the greater section. This information is useful to G1's control. Warning: With an little value, approximation can be slower.

Implements GeomFill_SectionLaw.

◆ Mults()

virtual void GeomFill_NSections::Mults ( TColStd_Array1OfInteger TMults) const
overridevirtual

get the Multplicities of the section

Implements GeomFill_SectionLaw.

◆ NbIntervals()

virtual Standard_Integer GeomFill_NSections::NbIntervals ( const GeomAbs_Shape  S) const
overridevirtual

Returns the number of intervals for continuity . May be one if Continuity(me) >=

Implements GeomFill_SectionLaw.

◆ SectionShape()

virtual void GeomFill_NSections::SectionShape ( Standard_Integer NbPoles,
Standard_Integer NbKnots,
Standard_Integer Degree 
) const
overridevirtual

get the format of an section

Implements GeomFill_SectionLaw.

◆ SetInterval()

virtual void GeomFill_NSections::SetInterval ( const Standard_Real  First,
const Standard_Real  Last 
)
overridevirtual

Sets the bounds of the parametric interval on the function This determines the derivatives in these values if the function is not Cn.

Implements GeomFill_SectionLaw.

◆ SetSurface()

void GeomFill_NSections::SetSurface ( const Handle< Geom_BSplineSurface > &  RefSurf)

Sets the reference surface.


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