#include <Geom_Surface.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Integer.hxx>
+#include <GeomEvaluator_OffsetSurface.hxx>
class Geom_Surface;
class Standard_ConstructionError;
class Standard_RangeError;
//! Note: The basis surface can be an offset surface.
inline const Handle(Geom_Surface) & BasisSurface() const
{ return basisSurf; }
+
+ //! Returns osculating surface if base surface is B-spline or Bezier
+ inline const Handle(Geom_OsculatingSurface)& OsculatingSurface() const
+ { return myOscSurf; }
//! Changes the orientation of this offset surface in the u
//! parametric direction. The bounds of the surface
//! raised if it is not possible to compute a unique offset
//! direction.
Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Real V, const Standard_Integer Nu, const Standard_Integer Nv) const;
-
-
- //! P (U, V) = Pbasis + Offset * Ndir where
- //! Ndir = D1Ubasis ^ D1Vbasis / ||D1Ubasis ^ D1Vbasis|| is
- //! the normal direction of the surface.
- //! If Ndir is undefined this method computes an approched normal
- //! direction using the following limited development :
- //! Ndir = N0 + DNdir/DU + DNdir/DV + Eps with Eps->0 which
- //! requires to compute the second derivatives on the basis surface.
- //! If the normal direction cannot be approximate for this order
- //! of derivation the exception UndefinedValue is raised.
- //!
- //! Raised if the continuity of the basis surface is not C1.
- //! Raised if the order of derivation required to compute the normal
- //! direction is greater than the second order.
- Standard_EXPORT void Value (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Pnt& Pbasis, gp_Vec& D1Ubasis, gp_Vec& D1Vbasis) const;
-
-
- //! Raised if the continuity of the basis surface is not C2.
- Standard_EXPORT void D1 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Pnt& Pbasis, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D1Ubasis, gp_Vec& D1Vbasis, gp_Vec& D2Ubasis, gp_Vec& D2Vbasis, gp_Vec& D2UVbasis) const;
-
-
- //! Raised if the continuity of the basis surface is not C3.
- //! The following private methods
- //! includes common part of local and global methods
- //! of derivative evaluations.
- Standard_EXPORT void D2 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Pnt& Pbasis, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV, gp_Vec& D1Ubasis, gp_Vec& D1Vbasis, gp_Vec& D2Ubasis, gp_Vec& D2Vbasis, gp_Vec& D2UVbasis, gp_Vec& D3Ubasis, gp_Vec& D3Vbasis, gp_Vec& D3UUVbasis, gp_Vec& D3UVVbasis) const;
-
- Standard_EXPORT void LocalD0 (const Standard_Real U, const Standard_Real V, const Standard_Integer USide, const Standard_Integer VSide, gp_Pnt& P) const;
-
- Standard_EXPORT void LocalD1 (const Standard_Real U, const Standard_Real V, const Standard_Integer USide, const Standard_Integer VSide, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V) const;
-
- Standard_EXPORT void LocalD2 (const Standard_Real U, const Standard_Real V, const Standard_Integer USide, const Standard_Integer VSide, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) const;
-
- Standard_EXPORT void LocalD3 (const Standard_Real U, const Standard_Real V, const Standard_Integer USide, const Standard_Integer VSide, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV, gp_Vec& D3U, gp_Vec& D3V, gp_Vec& D3UUV, gp_Vec& D3UVV) const;
-
- Standard_EXPORT gp_Vec LocalDN (const Standard_Real U, const Standard_Real V, const Standard_Integer USide, const Standard_Integer VSide, const Standard_Integer Nu, const Standard_Integer Nv) const;
-
//! Applies the transformation T to this offset surface.
//! Note: the basis surface is also modified.
private:
-
- Standard_EXPORT void SetD0 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, const gp_Vec& D1U, const gp_Vec& D1V) const;
-
- Standard_EXPORT void SetD1 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, const gp_Vec& d2u, const gp_Vec& d2v, const gp_Vec& d2uv) const;
-
- Standard_EXPORT void SetD2 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV, const gp_Vec& d3u, const gp_Vec& d3v, const gp_Vec& d3uuv, const gp_Vec& d3uvv) const;
-
- Standard_EXPORT void SetD3 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV, gp_Vec& D3U, gp_Vec& D3V, gp_Vec& D3UUV, gp_Vec& D3UVV) const;
-
- //! The following functions evaluates the local
- //! derivatives on surface. Useful to manage discontinuities
- //! on the surface.
- //! if Side = 1 -> P = S( U+,V )
- //! if Side = -1 -> P = S( U-,V )
- //! else P is betveen discontinuities
- //! can be evaluated using methods of
- //! global evaluations P = S( U ,V )
- Standard_EXPORT gp_Vec SetDN (const Standard_Real U, const Standard_Real V, const Standard_Integer Nu, const Standard_Integer Nv, const gp_Vec& D1U, const gp_Vec& D1V) const;
-
- //! This method locates U,V parameters on basis BSpline surface
- //! and calls LocalDi or Di methods corresponding an order
- //! of derivative and position
- //! of UV-point relatively the surface discontinuities.
- Standard_EXPORT void LocateSides (const Standard_Real U, const Standard_Real V, const Standard_Integer USide, const Standard_Integer VSide, const Handle(Geom_BSplineSurface)& BSplS, const Standard_Integer NDir, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV, gp_Vec& D3U, gp_Vec& D3V, gp_Vec& D3UUV, gp_Vec& D3UVV) const;
-
Handle(Geom_Surface) basisSurf;
Handle(Geom_Surface) equivSurf;
Standard_Real offsetValue;
- Geom_OsculatingSurface myOscSurf;
+ Handle(Geom_OsculatingSurface) myOscSurf;
GeomAbs_Shape myBasisSurfContinuity;
+ Handle(GeomEvaluator_OffsetSurface) myEvaluator;
};
#endif // _Geom_OffsetSurface_HeaderFile
projects / occt.git / blobdiff