Open CASCADE Technology  7.7.0.dev
Static Public Member Functions

Extrema_Curve2dTool Class Reference

#include <Extrema_Curve2dTool.hxx>

Static Public Member Functions

static Standard_Real FirstParameter (const Adaptor2d_Curve2d &C)
 
static Standard_Real LastParameter (const Adaptor2d_Curve2d &C)
 
static GeomAbs_Shape Continuity (const Adaptor2d_Curve2d &C)
 
static Standard_Integer NbIntervals (const Adaptor2d_Curve2d &C, const GeomAbs_Shape S)
 If necessary, breaks the curve in intervals of continuity . And returns the number of intervals. More...
 
static void Intervals (const Adaptor2d_Curve2d &C, TColStd_Array1OfReal &T, const GeomAbs_Shape S)
 Stores in <T> the parameters bounding the intervals of continuity . More...
 
static Handle< TColStd_HArray1OfReal > DeflCurvIntervals (const Adaptor2d_Curve2d &C)
 Returns the parameters bounding the intervals of subdivision of curve according to Curvature deflection. Value of deflection is defined in method. More...
 
static Standard_Boolean IsClosed (const Adaptor2d_Curve2d &C)
 
static Standard_Boolean IsPeriodic (const Adaptor2d_Curve2d &C)
 
static Standard_Real Period (const Adaptor2d_Curve2d &C)
 
static gp_Pnt2d Value (const Adaptor2d_Curve2d &C, const Standard_Real U)
 Computes the point of parameter U on the curve. More...
 
static void D0 (const Adaptor2d_Curve2d &C, const Standard_Real U, gp_Pnt2d &P)
 Computes the point of parameter U on the curve. More...
 
static void D1 (const Adaptor2d_Curve2d &C, const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V)
 Computes the point of parameter U on the curve with its first derivative. More...
 
static void D2 (const Adaptor2d_Curve2d &C, const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V1, gp_Vec2d &V2)
 Returns the point P of parameter U, the first and second derivatives V1 and V2. More...
 
static void D3 (const Adaptor2d_Curve2d &C, const Standard_Real U, gp_Pnt2d &P, gp_Vec2d &V1, gp_Vec2d &V2, gp_Vec2d &V3)
 Returns the point P of parameter U, the first, the second and the third derivative. More...
 
static gp_Vec2d DN (const Adaptor2d_Curve2d &C, const Standard_Real U, const Standard_Integer N)
 The returned vector gives the value of the derivative for the order of derivation N. More...
 
static Standard_Real Resolution (const Adaptor2d_Curve2d &C, const Standard_Real R3d)
 Returns the parametric resolution corresponding to the real space resolution <R3d>. More...
 
static GeomAbs_CurveType GetType (const Adaptor2d_Curve2d &C)
 Returns the type of the curve in the current interval : Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve. More...
 
static gp_Lin2d Line (const Adaptor2d_Curve2d &C)
 
static gp_Circ2d Circle (const Adaptor2d_Curve2d &C)
 
static gp_Elips2d Ellipse (const Adaptor2d_Curve2d &C)
 
static gp_Hypr2d Hyperbola (const Adaptor2d_Curve2d &C)
 
static gp_Parab2d Parabola (const Adaptor2d_Curve2d &C)
 
static Standard_Integer Degree (const Adaptor2d_Curve2d &C)
 
static Standard_Boolean IsRational (const Adaptor2d_Curve2d &C)
 
static Standard_Integer NbPoles (const Adaptor2d_Curve2d &C)
 
static Standard_Integer NbKnots (const Adaptor2d_Curve2d &C)
 
static Handle< Geom2d_BezierCurveBezier (const Adaptor2d_Curve2d &C)
 
static Handle< Geom2d_BSplineCurveBSpline (const Adaptor2d_Curve2d &C)
 

Member Function Documentation

◆ Bezier()

static Handle< Geom2d_BezierCurve > Extrema_Curve2dTool::Bezier ( const Adaptor2d_Curve2d C)
static

◆ BSpline()

static Handle< Geom2d_BSplineCurve > Extrema_Curve2dTool::BSpline ( const Adaptor2d_Curve2d C)
static

◆ Circle()

static gp_Circ2d Extrema_Curve2dTool::Circle ( const Adaptor2d_Curve2d C)
static

◆ Continuity()

static GeomAbs_Shape Extrema_Curve2dTool::Continuity ( const Adaptor2d_Curve2d C)
static

◆ D0()

static void Extrema_Curve2dTool::D0 ( const Adaptor2d_Curve2d C,
const Standard_Real  U,
gp_Pnt2d P 
)
static

Computes the point of parameter U on the curve.

◆ D1()

static void Extrema_Curve2dTool::D1 ( const Adaptor2d_Curve2d C,
const Standard_Real  U,
gp_Pnt2d P,
gp_Vec2d V 
)
static

Computes the point of parameter U on the curve with its first derivative.

◆ D2()

static void Extrema_Curve2dTool::D2 ( const Adaptor2d_Curve2d C,
const Standard_Real  U,
gp_Pnt2d P,
gp_Vec2d V1,
gp_Vec2d V2 
)
static

Returns the point P of parameter U, the first and second derivatives V1 and V2.

◆ D3()

static void Extrema_Curve2dTool::D3 ( const Adaptor2d_Curve2d C,
const Standard_Real  U,
gp_Pnt2d P,
gp_Vec2d V1,
gp_Vec2d V2,
gp_Vec2d V3 
)
static

Returns the point P of parameter U, the first, the second and the third derivative.

◆ DeflCurvIntervals()

static Handle< TColStd_HArray1OfReal > Extrema_Curve2dTool::DeflCurvIntervals ( const Adaptor2d_Curve2d C)
static

Returns the parameters bounding the intervals of subdivision of curve according to Curvature deflection. Value of deflection is defined in method.

◆ Degree()

static Standard_Integer Extrema_Curve2dTool::Degree ( const Adaptor2d_Curve2d C)
static

◆ DN()

static gp_Vec2d Extrema_Curve2dTool::DN ( const Adaptor2d_Curve2d C,
const Standard_Real  U,
const Standard_Integer  N 
)
static

The returned vector gives the value of the derivative for the order of derivation N.

◆ Ellipse()

static gp_Elips2d Extrema_Curve2dTool::Ellipse ( const Adaptor2d_Curve2d C)
static

◆ FirstParameter()

static Standard_Real Extrema_Curve2dTool::FirstParameter ( const Adaptor2d_Curve2d C)
static

◆ GetType()

static GeomAbs_CurveType Extrema_Curve2dTool::GetType ( const Adaptor2d_Curve2d C)
static

Returns the type of the curve in the current interval : Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.

◆ Hyperbola()

static gp_Hypr2d Extrema_Curve2dTool::Hyperbola ( const Adaptor2d_Curve2d C)
static

◆ Intervals()

static void Extrema_Curve2dTool::Intervals ( const Adaptor2d_Curve2d C,
TColStd_Array1OfReal T,
const GeomAbs_Shape  S 
)
static

Stores in <T> the parameters bounding the intervals of continuity .

◆ IsClosed()

static Standard_Boolean Extrema_Curve2dTool::IsClosed ( const Adaptor2d_Curve2d C)
static

◆ IsPeriodic()

static Standard_Boolean Extrema_Curve2dTool::IsPeriodic ( const Adaptor2d_Curve2d C)
static

◆ IsRational()

static Standard_Boolean Extrema_Curve2dTool::IsRational ( const Adaptor2d_Curve2d C)
static

◆ LastParameter()

static Standard_Real Extrema_Curve2dTool::LastParameter ( const Adaptor2d_Curve2d C)
static

◆ Line()

static gp_Lin2d Extrema_Curve2dTool::Line ( const Adaptor2d_Curve2d C)
static

◆ NbIntervals()

static Standard_Integer Extrema_Curve2dTool::NbIntervals ( const Adaptor2d_Curve2d C,
const GeomAbs_Shape  S 
)
static

If necessary, breaks the curve in intervals of continuity . And returns the number of intervals.

◆ NbKnots()

static Standard_Integer Extrema_Curve2dTool::NbKnots ( const Adaptor2d_Curve2d C)
static

◆ NbPoles()

static Standard_Integer Extrema_Curve2dTool::NbPoles ( const Adaptor2d_Curve2d C)
static

◆ Parabola()

static gp_Parab2d Extrema_Curve2dTool::Parabola ( const Adaptor2d_Curve2d C)
static

◆ Period()

static Standard_Real Extrema_Curve2dTool::Period ( const Adaptor2d_Curve2d C)
static

◆ Resolution()

static Standard_Real Extrema_Curve2dTool::Resolution ( const Adaptor2d_Curve2d C,
const Standard_Real  R3d 
)
static

Returns the parametric resolution corresponding to the real space resolution <R3d>.

◆ Value()

static gp_Pnt2d Extrema_Curve2dTool::Value ( const Adaptor2d_Curve2d C,
const Standard_Real  U 
)
static

Computes the point of parameter U on the curve.


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