Open CASCADE Technology 6.6.0
Public Member Functions
GeomFill_NSections Class Reference

Define a Section Law by N Sections

#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.

 GeomFill_NSections (const TColGeom_SequenceOfCurve &NC, const TColStd_SequenceOfReal &NP)
 Make a SectionLaw with N Curves and N associated parameters.

 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 (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 (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

virtual Standard_Boolean D0 (const Standard_Real Param, TColgp_Array1OfPnt &Poles, TColStd_Array1OfReal &Weigths)
 compute the section for v = param

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

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

void SetSurface (const Handle< Geom_BSplineSurface > &RefSurf)
 Sets the reference surface


void ComputeSurface ()
 Computes the surface


virtual Handle_Geom_BSplineSurface BSplineSurface () 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. Is it the default implementation.

virtual void SectionShape (Standard_Integer &NbPoles, Standard_Integer &NbKnots, Standard_Integer &Degree) const
 get the format of an section

virtual void Knots (TColStd_Array1OfReal &TKnots) const
 get the Knots of the section

virtual void Mults (TColStd_Array1OfInteger &TMults) const
 get the Multplicities of the section

virtual Standard_Boolean IsRational () const
 Returns if the sections are rationnal or not

virtual Standard_Boolean IsUPeriodic () const
 Returns if the sections are periodic or not

virtual Standard_Boolean IsVPeriodic () const
 Returns if the law isperiodic or not

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

virtual void Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const
 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()

virtual void SetInterval (const Standard_Real First, const Standard_Real Last)
 Sets the bounds of the parametric interval on
the function
This determines the derivatives in these values if the
function is not Cn.

virtual void GetInterval (Standard_Real &First, Standard_Real &Last) const
 Gets the bounds of the parametric interval on
the function

virtual void GetDomain (Standard_Real &First, Standard_Real &Last) const
 Gets the bounds of the function parametric domain.
Warning: This domain it is not modified by the
SetValue method

virtual void GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, TColStd_Array1OfReal &Tol3d) const
 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.

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

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

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

virtual Standard_Boolean IsConstant (Standard_Real &Error) const
 return True If the Law isConstant

virtual Handle_Geom_Curve ConstantSection () const
 Return the constant Section if <me> IsConstant.


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.

virtual Handle_Geom_Curve CirclSection (const Standard_Real Param) const
 Return the circle section at parameter , if
<me> a IsConicalLaw


Constructor & Destructor Documentation

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

Member Function Documentation

virtual gp_Pnt GeomFill_NSections::BarycentreOfSurf ( ) const [virtual]

Reimplemented from GeomFill_SectionLaw.

virtual Handle_Geom_BSplineSurface GeomFill_NSections::BSplineSurface ( ) const [virtual]

Reimplemented from GeomFill_SectionLaw.

virtual Handle_Geom_Curve GeomFill_NSections::CirclSection ( const Standard_Real  Param) const [virtual]

Reimplemented from GeomFill_SectionLaw.

void GeomFill_NSections::ComputeSurface ( )
virtual Handle_Geom_Curve GeomFill_NSections::ConstantSection ( ) const [virtual]

Reimplemented from GeomFill_SectionLaw.

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

Implements GeomFill_SectionLaw.

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

Reimplemented from GeomFill_SectionLaw.

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 
) [virtual]

Reimplemented from GeomFill_SectionLaw.

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

Implements GeomFill_SectionLaw.

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

Implements GeomFill_SectionLaw.

virtual void GeomFill_NSections::GetMinimalWeight ( TColStd_Array1OfReal Weigths) const [virtual]

Reimplemented from GeomFill_SectionLaw.

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

Implements GeomFill_SectionLaw.

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

Implements GeomFill_SectionLaw.

virtual Standard_Boolean GeomFill_NSections::IsConicalLaw ( Standard_Real Error) const [virtual]

Reimplemented from GeomFill_SectionLaw.

virtual Standard_Boolean GeomFill_NSections::IsConstant ( Standard_Real Error) const [virtual]

Reimplemented from GeomFill_SectionLaw.

virtual Standard_Boolean GeomFill_NSections::IsRational ( ) const [virtual]

Implements GeomFill_SectionLaw.

virtual Standard_Boolean GeomFill_NSections::IsUPeriodic ( ) const [virtual]

Implements GeomFill_SectionLaw.

virtual Standard_Boolean GeomFill_NSections::IsVPeriodic ( ) const [virtual]

Implements GeomFill_SectionLaw.

virtual void GeomFill_NSections::Knots ( TColStd_Array1OfReal TKnots) const [virtual]

Implements GeomFill_SectionLaw.

virtual Standard_Real GeomFill_NSections::MaximalSection ( ) const [virtual]

Implements GeomFill_SectionLaw.

virtual void GeomFill_NSections::Mults ( TColStd_Array1OfInteger TMults) const [virtual]

Implements GeomFill_SectionLaw.

virtual Standard_Integer GeomFill_NSections::NbIntervals ( const GeomAbs_Shape  S) const [virtual]

Implements GeomFill_SectionLaw.

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

Implements GeomFill_SectionLaw.

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

Implements GeomFill_SectionLaw.

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

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