Open CASCADE Technology  7.7.0.dev
Public Member Functions | Protected Member Functions

BRepBlend_AppFuncRoot Class Referenceabstract

Function to approximate by AppSurface. More...

#include <BRepBlend_AppFuncRoot.hxx>

Inheritance diagram for BRepBlend_AppFuncRoot:
Inheritance graph
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Public Member Functions

virtual Standard_Boolean D0 (const Standard_Real Param, const Standard_Real First, const Standard_Real Last, TColgp_Array1OfPnt &Poles, TColgp_Array1OfPnt2d &Poles2d, TColStd_Array1OfReal &Weigths) override
 compute the section for v = param More...
 
virtual Standard_Boolean D1 (const Standard_Real Param, const Standard_Real First, const Standard_Real Last, TColgp_Array1OfPnt &Poles, TColgp_Array1OfVec &DPoles, TColgp_Array1OfPnt2d &Poles2d, TColgp_Array1OfVec2d &DPoles2d, TColStd_Array1OfReal &Weigths, TColStd_Array1OfReal &DWeigths) override
 compute the first derivative in v direction of the section for v = param More...
 
virtual Standard_Boolean D2 (const Standard_Real Param, const Standard_Real First, const Standard_Real Last, TColgp_Array1OfPnt &Poles, TColgp_Array1OfVec &DPoles, TColgp_Array1OfVec &D2Poles, TColgp_Array1OfPnt2d &Poles2d, TColgp_Array1OfVec2d &DPoles2d, TColgp_Array1OfVec2d &D2Poles2d, TColStd_Array1OfReal &Weigths, TColStd_Array1OfReal &DWeigths, TColStd_Array1OfReal &D2Weigths) override
 compute the second derivative in v direction of the section for v = param More...
 
virtual Standard_Integer Nb2dCurves () const override
 get the number of 2d curves to approximate. 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 section is rationnal 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 fonction This determines the derivatives in these values if the function is not Cn. More...
 
virtual void Resolution (const Standard_Integer Index, const Standard_Real Tol, Standard_Real &TolU, Standard_Real &TolV) const override
 Returns the resolutions in the sub-space 2d <Index> – This information is usfull to find an good tolerance in 2d approximation. More...
 
virtual void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, TColStd_Array1OfReal &Tol3d) const override
 Returns the tolerance to reach in approximation to respecte 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) override
 Is usfull, if (me) have to be run numerical algorithme to perform D0, D1 or D2. 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. More...
 
virtual Standard_Real MaximalSection () const override
 Returns the length of the maximum section. This information is useful to perform well conditioned rational approximation. More...
 
virtual void GetMinimalWeight (TColStd_Array1OfReal &Weigths) const override
 Compute the minimal value of weight for each poles of all sections. This information is useful to perform well conditioned rational approximation. More...
 
virtual void Point (const Blend_AppFunction &Func, const Standard_Real Param, const math_Vector &Sol, Blend_Point &Pnt) const =0
 
virtual void Vec (math_Vector &Sol, const Blend_Point &Pnt) const =0
 
- 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...
 

Protected Member Functions

 BRepBlend_AppFuncRoot (Handle< BRepBlend_Line > &Line, Blend_AppFunction &Func, const Standard_Real Tol3d, const Standard_Real Tol2d)
 

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

Function to approximate by AppSurface.

Constructor & Destructor Documentation

◆ BRepBlend_AppFuncRoot()

BRepBlend_AppFuncRoot::BRepBlend_AppFuncRoot ( Handle< BRepBlend_Line > &  Line,
Blend_AppFunction Func,
const Standard_Real  Tol3d,
const Standard_Real  Tol2d 
)
protected

Member Function Documentation

◆ BarycentreOfSurf()

virtual gp_Pnt BRepBlend_AppFuncRoot::BarycentreOfSurf ( ) const
overridevirtual

Get the barycentre of Surface. An very poor estimation is sufficient. This information is useful to perform well conditioned rational approximation.

Reimplemented from Approx_SweepFunction.

◆ D0()

virtual Standard_Boolean BRepBlend_AppFuncRoot::D0 ( const Standard_Real  Param,
const Standard_Real  First,
const Standard_Real  Last,
TColgp_Array1OfPnt Poles,
TColgp_Array1OfPnt2d Poles2d,
TColStd_Array1OfReal Weigths 
)
overridevirtual

compute the section for v = param

Implements Approx_SweepFunction.

◆ D1()

virtual Standard_Boolean BRepBlend_AppFuncRoot::D1 ( const Standard_Real  Param,
const Standard_Real  First,
const Standard_Real  Last,
TColgp_Array1OfPnt Poles,
TColgp_Array1OfVec DPoles,
TColgp_Array1OfPnt2d Poles2d,
TColgp_Array1OfVec2d DPoles2d,
TColStd_Array1OfReal Weigths,
TColStd_Array1OfReal DWeigths 
)
overridevirtual

compute the first derivative in v direction of the section for v = param

Reimplemented from Approx_SweepFunction.

◆ D2()

virtual Standard_Boolean BRepBlend_AppFuncRoot::D2 ( const Standard_Real  Param,
const Standard_Real  First,
const Standard_Real  Last,
TColgp_Array1OfPnt Poles,
TColgp_Array1OfVec DPoles,
TColgp_Array1OfVec D2Poles,
TColgp_Array1OfPnt2d Poles2d,
TColgp_Array1OfVec2d DPoles2d,
TColgp_Array1OfVec2d D2Poles2d,
TColStd_Array1OfReal Weigths,
TColStd_Array1OfReal DWeigths,
TColStd_Array1OfReal D2Weigths 
)
overridevirtual

compute the second derivative in v direction of the section for v = param

Reimplemented from Approx_SweepFunction.

◆ GetMinimalWeight()

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

Compute the minimal value of weight for each poles of all sections. This information is useful to perform well conditioned rational approximation.

Reimplemented from Approx_SweepFunction.

◆ GetTolerance()

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

Returns the tolerance to reach in approximation to respecte BoundTol error at the Boundary AngleTol tangent error at the Boundary (in radian) SurfTol error inside the surface.

Implements Approx_SweepFunction.

◆ Intervals()

virtual void BRepBlend_AppFuncRoot::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 Approx_SweepFunction.

◆ IsRational()

virtual Standard_Boolean BRepBlend_AppFuncRoot::IsRational ( ) const
overridevirtual

Returns if the section is rationnal or not.

Implements Approx_SweepFunction.

◆ Knots()

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

get the Knots of the section

Implements Approx_SweepFunction.

◆ MaximalSection()

virtual Standard_Real BRepBlend_AppFuncRoot::MaximalSection ( ) const
overridevirtual

Returns the length of the maximum section. This information is useful to perform well conditioned rational approximation.

Reimplemented from Approx_SweepFunction.

◆ Mults()

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

get the Multplicities of the section

Implements Approx_SweepFunction.

◆ Nb2dCurves()

virtual Standard_Integer BRepBlend_AppFuncRoot::Nb2dCurves ( ) const
overridevirtual

get the number of 2d curves to approximate.

Implements Approx_SweepFunction.

◆ NbIntervals()

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

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

Implements Approx_SweepFunction.

◆ Point()

virtual void BRepBlend_AppFuncRoot::Point ( const Blend_AppFunction Func,
const Standard_Real  Param,
const math_Vector Sol,
Blend_Point Pnt 
) const
pure virtual

◆ Resolution()

virtual void BRepBlend_AppFuncRoot::Resolution ( const Standard_Integer  Index,
const Standard_Real  Tol,
Standard_Real TolU,
Standard_Real TolV 
) const
overridevirtual

Returns the resolutions in the sub-space 2d <Index> – This information is usfull to find an good tolerance in 2d approximation.

Reimplemented from Approx_SweepFunction.

◆ SectionShape()

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

get the format of an section

Implements Approx_SweepFunction.

◆ SetInterval()

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

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

Implements Approx_SweepFunction.

◆ SetTolerance()

virtual void BRepBlend_AppFuncRoot::SetTolerance ( const Standard_Real  Tol3d,
const Standard_Real  Tol2d 
)
overridevirtual

Is usfull, if (me) have to be run numerical algorithme to perform D0, D1 or D2.

Implements Approx_SweepFunction.

◆ Vec()

virtual void BRepBlend_AppFuncRoot::Vec ( math_Vector Sol,
const Blend_Point Pnt 
) const
pure virtual

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