// This file is generated by WOK (CPPExt). // Please do not edit this file; modify original file instead. // The copyright and license terms as defined for the original file apply to // this header file considered to be the "object code" form of the original source. #ifndef _Geom2dConvert_BSplineCurveToBezierCurve_HeaderFile #define _Geom2dConvert_BSplineCurveToBezierCurve_HeaderFile #ifndef _Standard_HeaderFile #include #endif #ifndef _Standard_Macro_HeaderFile #include #endif #ifndef _Handle_Geom2d_BSplineCurve_HeaderFile #include #endif #ifndef _Standard_Real_HeaderFile #include #endif #ifndef _Handle_Geom2d_BezierCurve_HeaderFile #include #endif #ifndef _Standard_Integer_HeaderFile #include #endif class Geom2d_BSplineCurve; class Standard_DimensionError; class Standard_DomainError; class Standard_OutOfRange; class Geom2d_BezierCurve; class TColGeom2d_Array1OfBezierCurve; class TColStd_Array1OfReal; //!An algorithm to convert a BSpline curve into a series
//! of adjacent Bezier curves.
//! A BSplineCurveToBezierCurve object provides a framework for:
//! - defining the BSpline curve to be converted
//! - implementing the construction algorithm, and
//! - consulting the results.
//! References :
//! Generating the Bezier points of B-spline curves and surfaces
//! (Wolfgang Bohm) CAD volume 13 number 6 november 1981
class Geom2dConvert_BSplineCurveToBezierCurve { public: void* operator new(size_t,void* anAddress) { return anAddress; } void* operator new(size_t size) { return Standard::Allocate(size); } void operator delete(void *anAddress) { if (anAddress) Standard::Free((Standard_Address&)anAddress); } //! Computes all the data needed to convert
//! - the BSpline curve BasisCurve, into a series of adjacent Bezier arcs.
//! The result consists of a series of BasisCurve arcs
//! limited by points corresponding to knot values of the curve.
//! Use the available interrogation functions to ascertain
//! the number of computed Bezier arcs, and then to
//! construct each individual Bezier curve (or all Bezier curves).
//! Note: ParametricTolerance is not used.
Standard_EXPORT Geom2dConvert_BSplineCurveToBezierCurve(const Handle(Geom2d_BSplineCurve)& BasisCurve); //! Computes all the data needed to convert
//! the portion of the BSpline curve BasisCurve
//! limited by the two parameter values U1 and U2
//! for Example if there is a Knot Uk and
//! Uk < U < Uk + ParametricTolerance/2 the last curve
//! corresponds to the span [Uk-1, Uk] and not to [Uk, Uk+1]
//! The result consists of a series of BasisCurve arcs
//! limited by points corresponding to knot values of the curve.
//! Use the available interrogation functions to ascertain
//! the number of computed Bezier arcs, and then to
//! construct each individual Bezier curve (or all Bezier curves).
//! Note: ParametricTolerance is not used.
//! Raises DomainError if U1 or U2 are out of the parametric bounds of the basis
//! curve [FirstParameter, LastParameter]. The Tolerance criterion
//! is ParametricTolerance.
//! Raised if Abs (U2 - U1) <= ParametricTolerance.
Standard_EXPORT Geom2dConvert_BSplineCurveToBezierCurve(const Handle(Geom2d_BSplineCurve)& BasisCurve,const Standard_Real U1,const Standard_Real U2,const Standard_Real ParametricTolerance); //!Constructs and returns the Bezier curve of index
//! Index to the table of adjacent Bezier arcs
//! computed by this algorithm.
//! This Bezier curve has the same orientation as the
//! BSpline curve analyzed in this framework.
//! Exceptions
//! Standard_OutOfRange if Index is less than 1 or
//! greater than the number of adjacent Bezier arcs
//! computed by this algorithm.
Standard_EXPORT Handle_Geom2d_BezierCurve Arc(const Standard_Integer Index) ; //!Constructs all the Bezier curves whose data is
//! computed by this algorithm and loads these curves
//! into the Curves table.
//! The Bezier curves have the same orientation as the
//! BSpline curve analyzed in this framework.
//! Exceptions
//! Standard_DimensionError if the Curves array was
//! not created with the following bounds:
//! - 1 , and
//! - the number of adjacent Bezier arcs computed by
//! this algorithm (as given by the function NbArcs).
Standard_EXPORT void Arcs(TColGeom2d_Array1OfBezierCurve& Curves) ; //! This methode returns the bspline's knots associated to
//! the converted arcs
//! Raises DimensionError if the length of Curves is not equal to
//! NbArcs + 1
Standard_EXPORT void Knots(TColStd_Array1OfReal& TKnots) const; //! Returns the number of BezierCurve arcs.
//! If at the creation time you have decomposed the basis curve
//! between the parametric values UFirst, ULast the number of
//! BezierCurve arcs depends on the number of knots included inside
//! the interval [UFirst, ULast].
//! If you have decomposed the whole basis B-spline curve the number
//! of BezierCurve arcs NbArcs is equal to the number of knots less
//! one.
Standard_EXPORT Standard_Integer NbArcs() const; protected: private: Handle_Geom2d_BSplineCurve myCurve; }; // other Inline functions and methods (like "C++: function call" methods) #endif