20 #ifndef GeomAPI_BSpline2d_H_
21 #define GeomAPI_BSpline2d_H_
23 #include <GeomAPI_Interface.h>
39 GEOMAPI_EXPORT
GeomAPI_BSpline2d(
const std::list<std::shared_ptr<GeomAPI_Pnt2d> >& thePoles,
40 const std::list<double>& theWeights,
41 const bool thePeriodic =
false);
45 const std::list<std::shared_ptr<GeomAPI_Pnt2d> >& thePoles,
46 const std::list<double>& theWeights,
47 const std::list<double>& theKnots = std::list<double>(),
48 const std::list<int>& theMults = std::list<int>(),
49 const bool thePeriodic =
false);
52 GEOMAPI_EXPORT
bool isNull()
const;
55 GEOMAPI_EXPORT
int degree()
const;
58 GEOMAPI_EXPORT std::list<double>
knots()
const;
61 GEOMAPI_EXPORT std::list<int>
mults()
const;
71 GEOMAPI_EXPORT
const bool parameter(
const std::shared_ptr<GeomAPI_Pnt2d> thePoint,
72 const double theTolerance,
73 double& theParameter)
const;
76 GEOMAPI_EXPORT
void D0(
const double theU, std::shared_ptr<GeomAPI_Pnt2d>& thePoint);
79 GEOMAPI_EXPORT
void D1(
const double theU, std::shared_ptr<GeomAPI_Pnt2d>& thePoint,
80 std::shared_ptr<GeomAPI_XY>& theDerivative);
B-spline curve in 2D.
Definition: GeomAPI_BSpline2d.h:36
GEOMAPI_EXPORT int degree() const
Returns degree of the curve.
Definition: GeomAPI_BSpline2d.cpp:168
GEOMAPI_EXPORT std::list< double > knots() const
Knots of the curve.
Definition: GeomAPI_BSpline2d.cpp:173
GEOMAPI_EXPORT const bool parameter(const std::shared_ptr< GeomAPI_Pnt2d > thePoint, const double theTolerance, double &theParameter) const
Computes the parameter of a given point on a circle.
Definition: GeomAPI_BSpline2d.cpp:185
GEOMAPI_EXPORT void D1(const double theU, std::shared_ptr< GeomAPI_Pnt2d > &thePoint, std::shared_ptr< GeomAPI_XY > &theDerivative)
Calculate point and first derivative for B-spline curve accrding to the given parameter.
Definition: GeomAPI_BSpline2d.cpp:216
GEOMAPI_EXPORT bool isNull() const
Returns true if curve is not initialized.
Definition: GeomAPI_BSpline2d.cpp:163
GEOMAPI_EXPORT void D0(const double theU, std::shared_ptr< GeomAPI_Pnt2d > &thePoint)
Calculate point on B-spline curve accrding to the given parameter.
Definition: GeomAPI_BSpline2d.cpp:209
GEOMAPI_EXPORT std::list< int > mults() const
Multiplicities of the knots.
Definition: GeomAPI_BSpline2d.cpp:179
GEOMAPI_EXPORT GeomAPI_BSpline2d(const std::list< std::shared_ptr< GeomAPI_Pnt2d > > &thePoles, const std::list< double > &theWeights, const bool thePeriodic=false)
Creation of B-spline curve defined by list of poles and weights.
Definition: GeomAPI_BSpline2d.cpp:141
General base class for all interfaces in this package.
Definition: GeomAPI_Interface.h:38
2D point defined by two coordinates
Definition: GeomAPI_Pnt2d.h:36
2 coordinates: they may represent vector or point or something else
Definition: GeomAPI_XY.h:32