ParametricCurve Class Reference

Inheritance diagram for ParametricCurve:

Public Member Functions
	ParametricCurve (TopoShape topoEdge)
long	GetOwnerId ()
void	SetOwnerId (long val)
boolean	IsValidGeometry ()
boolean	Initialize (TopoShape topoShape)
EnumCurveType	GetCurveType ()
boolean	Is3DCurve ()
boolean	IsCurveOnSurface ()
double	Tolerance ()
double	FirstParameter ()
GPnt	FirstPoint ()
double	LastParameter ()
GPnt	LastPoint ()
int	Continuity ()
boolean	IsClosed ()
boolean	IsPeriodic ()
double	Period ()
GPnt	Value (double u)
GPnt	D0 (double u)
DerivativeValues	D1 (double u)
DerivativeValues	D2 (double u)
DerivativeValues	D3 (double u)
GVec	DN (double u, int n)
double	Curvature (double u)
GPnt	GetStartPoint ()
GPnt	GetEndPoint ()
GBBox	GetBBox ()
double	GetLength ()
double	ComputeLength (double u1, double u2)
double	ComputePointByDistance (double u0, double offset)
DoubleList	SplitByUniformLength (double length, double tolerance)
DoubleList	SplitByUniformLength (double length, double u1, double u2, double tolerance)
DoubleList	SplitByUniformLengthByCount (long count, double u1, double u2, double tolerance)
DoubleList	SplitByUniformAbscissa (long count)
DoubleList	SplitByUniformAbscissa (long count, double u1, double u2)
DoubleList	SplitByTangential (double angular, double curvature)
DoubleList	SplitByTangential (double angular, double curvature, double u1, double u2)
DoubleList	SplitByTangential (double angular, double curvature, double u1, double u2, double minLength, int minPointNumber)
GLin	TryLine ()
GCirc	TryCircle ()
GElips	TryEllipse ()
GHypr	TryHyperbola ()
GParab	TryParabola ()
GBSplineCurve	TryBSplineCurve ()
GBezierCurve	TryBezierCurve ()
Public Member Functions inherited from ParametricGeometry
long	GetId ()
void	SetId (long val)
TopoShape	GetShape ()

Detailed Description

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Parametric representation of the curve.

Member Function Documentation

ComputePointByDistance()

double ParametricCurve.ComputePointByDistance	(	double	u0,
		double	offset
	)

Compute the point with the distance to u0.

Parameters

u0	the parameter of the start point.
offset	the distance.

Returns

the parameter of the point. retun u0 if not found.

Continuity()

int ParametricCurve.Continuity

(

)

Continuity.
enum:
C0 = 0,
G1,
C1,
G2,
C2,
C3,
CN

D0()

GPnt ParametricCurve.D0

(

double

u

)

Computes the point of parameter U on the curve.

Parameters

u	the parameter

Returns

the point.

D1()

DerivativeValues ParametricCurve.D1

(

double

u

)

Computes the point and derivative of parameter U on the curve.

Parameters

u	the parameter

Returns

the point and the first derivative. Empty if not C1

D2()

DerivativeValues ParametricCurve.D2

(

double

u

)

Computes the point and derivative of parameter U on the curve.

Parameters

u	the parameter

Returns

the point, the first and second derivative. Empty if not C2.

D3()

DerivativeValues ParametricCurve.D3

(

double

u

)

Computes the point and derivative of parameter U on the curve.

Parameters

u	the parameter

Returns

the point, the first, the second and the third derivative. Empty if not C3.

DN()

GVec ParametricCurve.DN	(	double	u,
		int	n
	)

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

Parameters

u	the parameter
n	the order of derivation

Returns

the vector. Return zero if not CN or N < 1.

FirstParameter()

double ParametricCurve.FirstParameter

(

)

The first parameter.

GetBBox()

GBBox ParametricCurve.GetBBox

(

)

Compute the bounding box.

Returns

the box.

GetCurveType()

EnumCurveType ParametricCurve.GetCurveType

(

)

Get the curve type.
enum EnumCurveType

Returns

the point.

GetEndPoint()

GPnt ParametricCurve.GetEndPoint

(

)

Get the end point position.

Returns

the end point.

GetStartPoint()

GPnt ParametricCurve.GetStartPoint

(

)

Get the start point position.

Returns

the start point.

Initialize()

boolean ParametricCurve.Initialize

(

TopoShape

topoShape

)

Use TopoShape to initialize the geometry, must be Edge.

Parameters

topoShape

the TopoShape

Returns

true if ok.

Reimplemented from ParametricGeometry.

Is3DCurve()

boolean ParametricCurve.Is3DCurve

(

)

Is 3D Curve.

IsClosed()

boolean ParametricCurve.IsClosed

(

)

Is Closed.

IsCurveOnSurface()

boolean ParametricCurve.IsCurveOnSurface

(

)

Is 3D Curve on surface.

IsPeriodic()

boolean ParametricCurve.IsPeriodic

(

)

Is Periodic.

IsValidGeometry()

boolean ParametricCurve.IsValidGeometry

(

)

Test if valid.

Reimplemented from ParametricGeometry.

LastParameter()

double ParametricCurve.LastParameter

(

)

The last parameter.

Period()

double ParametricCurve.Period

(

)

The period.

SplitByTangential()

DoubleList ParametricCurve.SplitByTangential	(	double	angular,
		double	curvature
	)

Split the curve by curvature

Parameters

angular	the angle deflection in radians
curvature	linear deflection

Returns

the parameters of each point.

SplitByUniformAbscissa()

DoubleList ParametricCurve.SplitByUniformAbscissa

(

long

count

)

Split the curve to equal parts.

Parameters

count

the point count.

Returns

the parameters of each point.

SplitByUniformLength()

DoubleList ParametricCurve.SplitByUniformLength	(	double	length,
		double	tolerance
	)

Split the curve to equal parts.

Parameters

length	the length of each part.
tolerance	the tolerance

Returns

the parameters of each part.

Tolerance()

double ParametricCurve.Tolerance

(

)

tolerance.

Value()

GPnt ParametricCurve.Value

(

double

u

)

Computes the point of parameter U on the curve.

Parameters

u	the parameter

Returns

the point.