Open CASCADE Technology  7.4.1.dev
Public Member Functions
GeomFill_SectionLaw Class Referenceabstract

To define section law in sweeping. More...

#include <GeomFill_SectionLaw.hxx>

Inheritance diagram for GeomFill_SectionLaw:
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Public Member Functions

virtual Standard_Boolean D0 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColStd_Array1OfReal &Weigths)=0
 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)
 compute the first derivative in v direction of the section for v = param Warning : It used only for C1 or C2 aproximation 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)
 compute the second derivative in v direction of the section for v = param Warning : It used only for C2 aproximation More...
 
virtual Handle< Geom_BSplineSurfaceBSplineSurface () const
 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. It is the default implementation. More...
 
virtual void SectionShape (Standard_Integer &NbPoles, Standard_Integer &NbKnots, Standard_Integer &Degree) const =0
 get the format of an section More...
 
virtual void Knots (TColStd_Array1OfReal &TKnots) const =0
 get the Knots of the section More...
 
virtual void Mults (TColStd_Array1OfInteger &TMults) const =0
 get the Multplicities of the section More...
 
virtual Standard_Boolean IsRational () const =0
 Returns if the sections are rationnal or not. More...
 
virtual Standard_Boolean IsUPeriodic () const =0
 Returns if the sections are periodic or not. More...
 
virtual Standard_Boolean IsVPeriodic () const =0
 Returns if law is periodic or not. More...
 
virtual Standard_Integer NbIntervals (const GeomAbs_Shape S) const =0
 Returns the number of intervals for continuity <S>. May be one if Continuity(me) >= <S> More...
 
virtual void Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const =0
 Stores in <T> the parameters bounding the intervals of continuity <S>. More...
 
virtual void SetInterval (const Standard_Real First, const Standard_Real Last)=0
 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 =0
 Gets the bounds of the parametric interval on the function. More...
 
virtual void GetDomain (Standard_Real &First, Standard_Real &Last) const =0
 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 =0
 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 void SetTolerance (const Standard_Real Tol3d, const Standard_Real Tol2d)
 Is usefull, if (me) have to run numerical algorithm to perform D0, D1 or D2 The default implementation make nothing. More...
 
virtual gp_Pnt BarycentreOfSurf () const
 Get the barycentre of Surface. An very poor estimation is sufficent. This information is usefull to perform well conditioned rational approximation. Warning: Used only if <me> IsRational. More...
 
virtual Standard_Real MaximalSection () const =0
 Returns the length of the greater section. This information is usefull to G1's control. Warning: With an little value, approximation can be slower. More...
 
virtual void GetMinimalWeight (TColStd_Array1OfReal &Weigths) const
 Compute the minimal value of weight for each poles in all sections. This information is usefull to control error in rational approximation. Warning: Used only if <me> IsRational. More...
 
virtual Standard_Boolean IsConstant (Standard_Real &Error) const
 Say if all sections are equals. More...
 
virtual Handle< Geom_CurveConstantSection () const
 Return a copy of the constant Section, if me IsConstant. More...
 
virtual Standard_Boolean IsConicalLaw (Standard_Real &Error) const
 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
 Return the circle section at parameter , if <me> a IsConicalLaw. 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

To define section law in sweeping.

Member Function Documentation

◆ BarycentreOfSurf()

virtual gp_Pnt GeomFill_SectionLaw::BarycentreOfSurf ( ) const
virtual

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

Reimplemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ BSplineSurface()

virtual Handle< Geom_BSplineSurface > GeomFill_SectionLaw::BSplineSurface ( ) const
virtual

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. It is the default implementation.

Reimplemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ CirclSection()

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

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

Reimplemented in GeomFill_NSections.

◆ ConstantSection()

virtual Handle< Geom_Curve > GeomFill_SectionLaw::ConstantSection ( ) const
virtual

Return a copy of the constant Section, if me IsConstant.

Reimplemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ D0()

virtual Standard_Boolean GeomFill_SectionLaw::D0 ( const Standard_Real  Param,
TColgp_Array1OfPnt Poles,
TColStd_Array1OfReal Weigths 
)
pure virtual

compute the section for v = param

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ D1()

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

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

Reimplemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ D2()

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

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

Reimplemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ GetDomain()

virtual void GeomFill_SectionLaw::GetDomain ( Standard_Real First,
Standard_Real Last 
) const
pure virtual

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

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ GetInterval()

virtual void GeomFill_SectionLaw::GetInterval ( Standard_Real First,
Standard_Real Last 
) const
pure virtual

Gets the bounds of the parametric interval on the function.

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ GetMinimalWeight()

virtual void GeomFill_SectionLaw::GetMinimalWeight ( TColStd_Array1OfReal Weigths) const
virtual

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

Reimplemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ GetTolerance()

virtual void GeomFill_SectionLaw::GetTolerance ( const Standard_Real  BoundTol,
const Standard_Real  SurfTol,
const Standard_Real  AngleTol,
TColStd_Array1OfReal Tol3d 
) const
pure virtual

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.

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ Intervals()

virtual void GeomFill_SectionLaw::Intervals ( TColStd_Array1OfReal T,
const GeomAbs_Shape  S 
) const
pure virtual

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

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

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ IsConicalLaw()

virtual Standard_Boolean GeomFill_SectionLaw::IsConicalLaw ( Standard_Real Error) const
virtual

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

Reimplemented in GeomFill_NSections.

◆ IsConstant()

virtual Standard_Boolean GeomFill_SectionLaw::IsConstant ( Standard_Real Error) const
virtual

Say if all sections are equals.

Reimplemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ IsRational()

virtual Standard_Boolean GeomFill_SectionLaw::IsRational ( ) const
pure virtual

Returns if the sections are rationnal or not.

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ IsUPeriodic()

virtual Standard_Boolean GeomFill_SectionLaw::IsUPeriodic ( ) const
pure virtual

Returns if the sections are periodic or not.

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ IsVPeriodic()

virtual Standard_Boolean GeomFill_SectionLaw::IsVPeriodic ( ) const
pure virtual

Returns if law is periodic or not.

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ Knots()

virtual void GeomFill_SectionLaw::Knots ( TColStd_Array1OfReal TKnots) const
pure virtual

get the Knots of the section

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ MaximalSection()

virtual Standard_Real GeomFill_SectionLaw::MaximalSection ( ) const
pure virtual

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

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ Mults()

virtual void GeomFill_SectionLaw::Mults ( TColStd_Array1OfInteger TMults) const
pure virtual

get the Multplicities of the section

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ NbIntervals()

virtual Standard_Integer GeomFill_SectionLaw::NbIntervals ( const GeomAbs_Shape  S) const
pure virtual

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

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ SectionShape()

virtual void GeomFill_SectionLaw::SectionShape ( Standard_Integer NbPoles,
Standard_Integer NbKnots,
Standard_Integer Degree 
) const
pure virtual

get the format of an section

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ SetInterval()

virtual void GeomFill_SectionLaw::SetInterval ( const Standard_Real  First,
const Standard_Real  Last 
)
pure virtual

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

Implemented in GeomFill_NSections, GeomFill_EvolvedSection, and GeomFill_UniformSection.

◆ SetTolerance()

virtual void GeomFill_SectionLaw::SetTolerance ( const Standard_Real  Tol3d,
const Standard_Real  Tol2d 
)
virtual

Is usefull, if (me) have to run numerical algorithm to perform D0, D1 or D2 The default implementation make nothing.


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