Open CASCADE Technology  6.5.4
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines
Static Public Member Functions
HLRBRep_BCurveTool Class Reference

#include <HLRBRep_BCurveTool.hxx>

Static Public Member Functions

static DEFINE_STANDARD_ALLOC
Standard_Real 
FirstParameter (const BRepAdaptor_Curve &C)
static Standard_Real LastParameter (const BRepAdaptor_Curve &C)
static GeomAbs_Shape Continuity (const BRepAdaptor_Curve &C)
static Standard_Integer NbIntervals (BRepAdaptor_Curve &C, const GeomAbs_Shape S)
 Returns the number of intervals for continuity
<S>. May be one if Continuity(myclass) >= <S>

static void Intervals (BRepAdaptor_Curve &C, TColStd_Array1OfReal &T, const GeomAbs_Shape S)
 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()

static Standard_Boolean IsClosed (const BRepAdaptor_Curve &C)
static Standard_Boolean IsPeriodic (const BRepAdaptor_Curve &C)
static Standard_Real Period (const BRepAdaptor_Curve &C)
static gp_Pnt Value (const BRepAdaptor_Curve &C, const Standard_Real U)
 Computes the point of parameter U on the curve.

static void D0 (const BRepAdaptor_Curve &C, const Standard_Real U, gp_Pnt &P)
 Computes the point of parameter U on the curve.

static void D1 (const BRepAdaptor_Curve &C, const Standard_Real U, gp_Pnt &P, gp_Vec &V)
 Computes the point of parameter U on the curve with its
first derivative.
//! Raised if the continuity of the current interval
is not C1.

static void D2 (const BRepAdaptor_Curve &C, const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2)
 Returns the point P of parameter U, the first and second
derivatives V1 and V2.
//! Raised if the continuity of the current interval
is not C2.

static void D3 (const BRepAdaptor_Curve &C, const Standard_Real U, gp_Pnt &P, gp_Vec &V1, gp_Vec &V2, gp_Vec &V3)
 Returns the point P of parameter U, the first, the second
and the third derivative.
//! Raised if the continuity of the current interval
is not C3.

static gp_Vec DN (const BRepAdaptor_Curve &C, const Standard_Real U, const Standard_Integer N)
 The returned vector gives the value of the derivative for the
order of derivation N.
//! Raised if the continuity of the current interval
is not CN.
//! Raised if N < 1.

static Standard_Real Resolution (const BRepAdaptor_Curve &C, const Standard_Real R3d)
 Returns the parametric resolution corresponding
to the real space resolution <R3d>.

static GeomAbs_CurveType GetType (const BRepAdaptor_Curve &C)
 Returns the type of the curve in the current
interval : Line, Circle, Ellipse, Hyperbola,
Parabola, BezierCurve, BSplineCurve, OtherCurve.

static gp_Lin Line (const BRepAdaptor_Curve &C)
static gp_Circ Circle (const BRepAdaptor_Curve &C)
static gp_Elips Ellipse (const BRepAdaptor_Curve &C)
static gp_Hypr Hyperbola (const BRepAdaptor_Curve &C)
static gp_Parab Parabola (const BRepAdaptor_Curve &C)
static Handle_Geom_BezierCurve Bezier (const BRepAdaptor_Curve &C)
static Handle_Geom_BSplineCurve BSpline (const BRepAdaptor_Curve &C)
static Standard_Integer Degree (const BRepAdaptor_Curve &C)
static Standard_Boolean IsRational (const BRepAdaptor_Curve &C)
static Standard_Integer NbPoles (const BRepAdaptor_Curve &C)
static Standard_Integer NbKnots (const BRepAdaptor_Curve &C)
static void Poles (const BRepAdaptor_Curve &C, TColgp_Array1OfPnt &T)
static void PolesAndWeights (const BRepAdaptor_Curve &C, TColgp_Array1OfPnt &T, TColStd_Array1OfReal &W)
static Standard_Integer NbSamples (const BRepAdaptor_Curve &C, const Standard_Real U0, const Standard_Real U1)

Member Function Documentation

static Handle_Geom_BezierCurve HLRBRep_BCurveTool::Bezier ( const BRepAdaptor_Curve C) [static]
static Handle_Geom_BSplineCurve HLRBRep_BCurveTool::BSpline ( const BRepAdaptor_Curve C) [static]
static void HLRBRep_BCurveTool::D0 ( const BRepAdaptor_Curve C,
const Standard_Real  U,
gp_Pnt P 
) [static]
static void HLRBRep_BCurveTool::D1 ( const BRepAdaptor_Curve C,
const Standard_Real  U,
gp_Pnt P,
gp_Vec V 
) [static]
static void HLRBRep_BCurveTool::D2 ( const BRepAdaptor_Curve C,
const Standard_Real  U,
gp_Pnt P,
gp_Vec V1,
gp_Vec V2 
) [static]
static void HLRBRep_BCurveTool::D3 ( const BRepAdaptor_Curve C,
const Standard_Real  U,
gp_Pnt P,
gp_Vec V1,
gp_Vec V2,
gp_Vec V3 
) [static]

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