#include <Approx_SweepFunction.hxx>
Public Member Functions | |
virtual Standard_EXPORT Standard_Boolean | D0 (const Standard_Real Param, const Standard_Real First, const Standard_Real Last, TColgp_Array1OfPnt &Poles, TColgp_Array1OfPnt2d &Poles2d, TColStd_Array1OfReal &Weigths)=0 |
compute the section for v = param | |
virtual Standard_EXPORT 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) |
compute the first derivative in v direction of the section for v = param Warning : It used only for C1 or C2 aproximation | |
virtual Standard_EXPORT 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) |
compute the second derivative in v direction of the section for v = param Warning : It used only for C2 aproximation | |
virtual Standard_EXPORT Standard_Integer | Nb2dCurves () const =0 |
get the number of 2d curves to approximate. | |
virtual Standard_EXPORT void | SectionShape (Standard_Integer &NbPoles, Standard_Integer &NbKnots, Standard_Integer &Degree) const =0 |
get the format of an section | |
virtual Standard_EXPORT void | Knots (TColStd_Array1OfReal &TKnots) const =0 |
get the Knots of the section | |
virtual Standard_EXPORT void | Mults (TColStd_Array1OfInteger &TMults) const =0 |
get the Multplicities of the section | |
virtual Standard_EXPORT Standard_Boolean | IsRational () const =0 |
Returns if the sections are rationnal or not . | |
virtual Standard_EXPORT Standard_Integer | NbIntervals (const GeomAbs_Shape S) const =0 |
Returns the number of intervals for continuity <s>. May be one if Continuity(me) >= <s> . | |
virtual Standard_EXPORT void | Intervals (TColStd_Array1OfReal &T, const GeomAbs_Shape S) const =0 |
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 Standard_EXPORT void | SetInterval (const Standard_Real First, const Standard_Real Last)=0 |
Sets the bounds of the parametric interval on the fonction This determines the derivatives in these values if the function is not Cn. . | |
virtual Standard_EXPORT void | Resolution (const Standard_Integer Index, const Standard_Real Tol, Standard_Real &TolU, Standard_Real &TolV) const |
Returns the resolutions in the sub-space 2d <index> This information is usfull to find an good tolerance in 2d approximation. . | |
virtual Standard_EXPORT void | GetTolerance (const Standard_Real BoundTol, const Standard_Real SurfTol, const Standard_Real AngleTol, TColStd_Array1OfReal &Tol3d) const =0 |
Returns the tolerance 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 Standard_EXPORT void | SetTolerance (const Standard_Real Tol3d, const Standard_Real Tol2d)=0 |
Is usefull, if (me) have to run numerical algorithm to perform D0, D1 or D2 . | |
virtual Standard_EXPORT 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_EXPORT 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 Standard_EXPORT 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 . | |
Standard_EXPORT const | Handle (Standard_Type)&DynamicType() const |
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