类 ParametricCurve 继承关系图:

Public 成员函数
	ParametricCurve (TopoShape edge)

long	GetOwnerId ()

void	SetOwnerId (long val)

boolean	IsValidGeometry ()

boolean	Initialize (TopoShape edge)

boolean	InitializeByLine (GLin line)

boolean	InitializeBySegment (GPnt start, GPnt end)

boolean	InitializeByCircle (GCirc circle)

boolean	InitializeByArc (GCirc circle, double u1, double u2)

boolean	InitializeByElips (GElips curve)

boolean	InitializeByElipsArc (GElips curve, double u1, double u2)

boolean	InitializeByHypr (GHypr curve, double u1, double u2)

boolean	InitializeByParab (GParab curve, double u1, double u2)

boolean	InitializeByBSpline (GBSplineCurve curve)

boolean	InitializeByBezier (GBezierCurve curve)

EnumCurveType	GetCurveType ()

boolean	Is3DCurve ()

boolean	IsLinear (double tol)

boolean	IsLinear ()

boolean	IsCurveOnSurface ()

double	Tolerance ()

double	FirstParameter ()

GPnt	FirstPoint ()

double	LastParameter ()

GPnt	LastPoint ()

EnumGeometryContinuity	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 distance)

DoubleList	SplitByUniformLength (double length, double tolerance)

DoubleList	SplitByUniformLengthByAll (double length, double tolerance)

DoubleList	SplitByUniformLength (double length, double u1, double u2, double tolerance)

DoubleList	SplitByUniformLengthByRange (double length, double u1, double u2, double tolerance)

DoubleList	SplitByUniformLengthByCount (long count, double u1, double u2, double tolerance)

DoubleList	SplitByUniformAbscissa (long count)

DoubleList	SplitByUniformAbscissaByAll (long count)

DoubleList	SplitByUniformAbscissa (long count, double u1, double u2)

DoubleList	SplitByUniformAbscissaByRange (long count, double u1, double u2)

DoubleList	SplitByTangential (double angular, double curvature)

DoubleList	SplitByTangentialByAll (double angular, double curvature)

DoubleList	SplitByTangential (double angular, double curvature, double u1, double u2)

DoubleList	SplitByTangentialByRange (double angular, double curvature, double u1, double u2)

DoubleList	SplitByTangential (double angular, double curvature, double u1, double u2, double minLength, int minPointNumber)

DoubleList	SplitByTangentialByLimit (double angular, double curvature, double minLength, int minPointNumber)

GLin	TryLine ()

GCirc	TryCircle ()

GElips	TryEllipse ()

GHypr	TryHyperbola ()

GParab	TryParabola ()

GBSplineCurve	TryBSplineCurve ()

GBezierCurve	TryBezierCurve ()

double	ComputeClosestPoint (GPnt pt)

Public 成员函数继承自 ParametricGeometry
long	GetId ()

void	SetId (long val)

TopoShape	GetShape ()

额外继承的成员函数
静态 Public 成员函数继承自 ParametricGeometry
static GPnt	GetPointValue (TopoShape vertex)

详细描述

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曲线的几何参数表达，用来获取曲线上点、切线等信息。

构造及析构函数说明

◆ ParametricCurve()

ParametricCurve.ParametricCurve ( TopoShape edge )

使用对象初始化曲线

参数

edge 曲线

成员函数说明

◆ ComputeClosestPoint()

double ParametricCurve.ComputeClosestPoint ( GPnt pt )

计算曲线上最近的点

参数

pt 点

返回: 曲线参数

◆ ComputeLength()

double ParametricCurve.ComputeLength	(	double	u1,
		double	u2 )

计算指定位置间的长度

参数

u1	起始参数
u2	终止参数

返回: 长度

◆ ComputePointByDistance()

double ParametricCurve.ComputePointByDistance	(	double	u0,
		double	distance )

Compute the point with the distance to u0.

参数

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

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

◆ Continuity()

EnumGeometryContinuity ParametricCurve.Continuity ( )

获取连续性

返回: EnumGeometryContinuity

◆ Curvature()

double ParametricCurve.Curvature ( double u )

计算曲率

参数

u 参数位置

返回: 曲率

◆ D0()

GPnt ParametricCurve.D0 ( double u )

Computes the point of parameter U on the curve.

参数

u	the parameter

返回: the point.

◆ D1()

DerivativeValues ParametricCurve.D1 ( double u )

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

参数

u	the parameter

返回: 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.

参数

u	the parameter

返回: 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.

参数

u	the parameter

返回: 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.

参数

u	the parameter
n	the order of derivation

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

◆ FirstParameter()

double ParametricCurve.FirstParameter ( )

起始参数.

返回: 参数

◆ FirstPoint()

GPnt ParametricCurve.FirstPoint ( )

起始点

返回: 点

◆ GetBBox()

GBBox ParametricCurve.GetBBox ( )

Compute the bounding box.

返回: the box.

◆ GetCurveType()

EnumCurveType ParametricCurve.GetCurveType ( )

获取曲线类型.

参见: EnumCurveType

返回: 类型.

◆ GetEndPoint()

GPnt ParametricCurve.GetEndPoint ( )

Get the end point position.

返回: the end point.

◆ GetLength()

double ParametricCurve.GetLength ( )

长度

返回: 长度

◆ GetStartPoint()

GPnt ParametricCurve.GetStartPoint ( )

Get the start point position.

返回: the start point.

◆ Initialize()

boolean ParametricCurve.Initialize ( TopoShape edge )

使用边对象来初始化,必须为边.

参数

edge 边

返回: true if ok.

重载 ParametricGeometry .

◆ Is3DCurve()

boolean ParametricCurve.Is3DCurve ( )

Is 3D Curve.

◆ IsClosed()

boolean ParametricCurve.IsClosed ( )

Is Closed.

◆ IsCurveOnSurface()

boolean ParametricCurve.IsCurveOnSurface ( )

Is 3D Curve on surface.

◆ IsLinear() [1/2]

boolean ParametricCurve.IsLinear ( )

是否表现为线性

◆ IsLinear() [2/2]

boolean ParametricCurve.IsLinear ( double tol )

是否表现为线性

◆ IsPeriodic()

boolean ParametricCurve.IsPeriodic ( )

是否为周期函数.

◆ IsValidGeometry()

boolean ParametricCurve.IsValidGeometry ( )

Test if valid.

重载 ParametricGeometry .

◆ LastParameter()

double ParametricCurve.LastParameter ( )

终点参数

返回: 参数

◆ LastPoint()

GPnt ParametricCurve.LastPoint ( )

终点

返回: 点

◆ Period()

double ParametricCurve.Period ( )

周期值.

◆ SplitByTangential() [1/3]

DoubleList ParametricCurve.SplitByTangential	(	double	angular,
		double	curvature )

根据曲率和角度自动分割曲线，曲率大的地方密一些，曲率小的地方稀一些。

参数

angular	角度偏转（弧度）
curvature	线形偏转 linear deflection

返回: 分割每一段的参数列表。

◆ SplitByTangential() [2/3]

DoubleList ParametricCurve.SplitByTangential	(	double	angular,
		double	curvature,
		double	u1,
		double	u2 )

根据曲率和角度自动分割曲线，曲率大的地方密一些，曲率小的地方稀一些。

参数

angular	角度偏转（弧度）
curvature	线形偏转 linear deflection
u1	起始参数
u2	终止参数

返回: 分割每一段的参数列表。

◆ SplitByTangential() [3/3]

DoubleList ParametricCurve.SplitByTangential	(	double	angular,
		double	curvature,
		double	u1,
		double	u2,
		double	minLength,
		int	minPointNumber )

根据曲率和角度自动分割曲线，曲率大的地方密一些，曲率小的地方稀一些。

参数

angular	角度偏转（弧度）
curvature	线形偏转 linear deflection
u1	起始参数
u2	终止参数
minLength	最小长度
minPointNumber	最小点数量

返回: 分割每一段的参数列表。

◆ SplitByUniformAbscissa() [1/2]

DoubleList ParametricCurve.SplitByUniformAbscissa ( long count )

把曲线指定的区间拆分为等长的线段.

参数

count 点的个数.

返回: 分割每一段的参数列表。

◆ SplitByUniformAbscissa() [2/2]

DoubleList ParametricCurve.SplitByUniformAbscissa	(	long	count,
		double	u1,
		double	u2 )

指定个数，把曲线指定的区间拆分为等长的线段.

参数

count	点的个数.
u1	起始参数
u2	终止参数

返回: 分割每一段的参数列表。

◆ SplitByUniformLength() [1/2]

DoubleList ParametricCurve.SplitByUniformLength	(	double	length,
		double	tolerance )

把曲线拆分为等长的线段.

参数

length	每段的长度.
tolerance	误差

返回: 分割每一段的参数列表。使用GetValue(u)获取点的值

◆ SplitByUniformLength() [2/2]

DoubleList ParametricCurve.SplitByUniformLength	(	double	length,
		double	u1,
		double	u2,
		double	tolerance )

把曲线指定的区间拆分为等长的线段.

参数

length	每段的长度.
u1	起始参数
u2	终止参数
tolerance	误差

返回: 分割每一段的参数列表。

◆ SplitByUniformLengthByCount()

DoubleList ParametricCurve.SplitByUniformLengthByCount	(	long	count,
		double	u1,
		double	u2,
		double	tolerance )

指定个数，把曲线指定的区间拆分为等长的线段.

参数

count	个数
u1	起始参数
u2	终止参数
tolerance	误差

返回: 分割每一段的参数列表。

◆ Tolerance()

double ParametricCurve.Tolerance ( )

tolerance.

◆ TryBezierCurve()

GBezierCurve ParametricCurve.TryBezierCurve ( )

转成贝塞尔曲线。转之前调用GetCurveType判断类型

返回: 对象

◆ TryBSplineCurve()

GBSplineCurve ParametricCurve.TryBSplineCurve ( )

转成样条曲线。转之前调用GetCurveType判断类型

返回: 对象

◆ TryCircle()

GCirc ParametricCurve.TryCircle ( )

转成圆弧。转之前调用GetCurveType判断类型

返回: 对象

◆ TryEllipse()

GElips ParametricCurve.TryEllipse ( )

转成椭圆弧。转之前调用GetCurveType判断类型

返回: 对象

◆ TryHyperbola()

GHypr ParametricCurve.TryHyperbola ( )

转成双曲线。转之前调用GetCurveType判断类型

返回: 对象

◆ TryLine()

GLin ParametricCurve.TryLine ( )

转成线。转之前调用GetCurveType判断类型

返回: 对象

◆ TryParabola()

GParab ParametricCurve.TryParabola ( )

转成抛物线。转之前调用GetCurveType判断类型

返回: 对象

◆ Value()

GPnt ParametricCurve.Value ( double u )

Computes the point of parameter U on the curve.

参数

u	the parameter

返回: the point.

Public 成员函数

额外继承的成员函数

详细描述

构造及析构函数说明

◆ ParametricCurve()

成员函数说明

◆ ComputeClosestPoint()

◆ ComputeLength()

◆ ComputePointByDistance()

◆ Continuity()

◆ Curvature()

◆ D0()

◆ D1()

◆ D2()

◆ D3()

◆ DN()

◆ FirstParameter()

◆ FirstPoint()

◆ GetBBox()

◆ GetCurveType()

◆ GetEndPoint()

◆ GetLength()

◆ GetStartPoint()

◆ Initialize()

◆ Is3DCurve()

◆ IsClosed()

◆ IsCurveOnSurface()

◆ IsLinear() [1/2]

◆ IsLinear() [2/2]

◆ IsPeriodic()

◆ IsValidGeometry()

◆ LastParameter()

◆ LastPoint()

◆ Period()

◆ SplitByTangential() [1/3]

◆ SplitByTangential() [2/3]

◆ SplitByTangential() [3/3]

◆ SplitByUniformAbscissa() [1/2]

◆ SplitByUniformAbscissa() [2/2]

◆ SplitByUniformLength() [1/2]

◆ SplitByUniformLength() [2/2]

◆ SplitByUniformLengthByCount()

◆ Tolerance()

◆ TryBezierCurve()

◆ TryBSplineCurve()

◆ TryCircle()

◆ TryEllipse()

◆ TryHyperbola()

◆ TryLine()

◆ TryParabola()

◆ Value()