NurbsCurvePointList Class

Provides access to the control points of a NURBS curve.

Inheritance Hierarchy

SystemObject
Rhino.Geometry.CollectionsNurbsCurvePointList

Namespace: Rhino.Geometry.Collections
Assembly: RhinoCommon (in RhinoCommon.dll)

Syntax

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public class NurbsCurvePointList : IEnumerable<ControlPoint>, 
	IEnumerable, IEpsilonComparable<NurbsCurvePointList>, IList<ControlPoint>, 
	ICollection<ControlPoint>

Public Class NurbsCurvePointList
	Implements IEnumerable(Of ControlPoint), IEnumerable, 
	IEpsilonComparable(Of NurbsCurvePointList), IList(Of ControlPoint), ICollection(Of ControlPoint)

The NurbsCurvePointList type exposes the following members.

Properties

	Name	Description
	ControlPolygonLength	Gets the length of the polyline connecting all control points.
	Count	Gets the number of control points in this curve.
	Item	Gets or sets the control point location at the given index.
	PointSize	Returns the control point size, or the number of doubles per control point. For rational curves, PointSize = Curve.Dimension + 1. For non-rational curves, PointSize = Curve.Dimension.

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Methods

	Name	Description
	ChangeEndWeights	Use a combination of scaling and reparameterization to change the end weights to the specified values.
	Contains	Determines if this list contains an item.
	ControlPolygon	Constructs a polyline through all the control points. Note that periodic curves generate a closed polyline with fewer points than control-points.
	CopyTo	Copied the list to an array.
	EnsurePrivateCopy	If you want to keep a copy of this class around by holding onto it in a variable after a command completes, call EnsurePrivateCopy to make sure that this class is not tied to the document. You can call this function as many times as you want.
	EpsilonEquals	Check that all values in other are within epsilon of the values in this
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetPoint(Int32, Point3d)	Gets a world 3-D, or Euclidean, control point at the given index. The 4-D representation is (x, y, z, 1.0).
	GetPoint(Int32, Point4d)	Gets a homogeneous control point at the given index, where the 4-D representation is (x, y, z, w). The world 3-D, or Euclidean, representation is (x/w, y/w, z/w).
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GetWeight	Gets the weight of a control point at the given index. Note, if the curve is non-rational, the weight will be 1.0.
	IndexOf	Gets the index of a control point, or -1.
	MakeNonRational	Converts the curve to a Non-rational NURBS curve. Non-rational curves have unweighted control points.
	MakeRational	Converts the curve to a Rational NURBS curve. Rational NURBS curves have weighted control points.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	SetPoint(Int32, Point3d)	Sets a world 3-D, or Euclidean, control point at the given index. The 4-D representation is (x, y, z, 1.0).
	SetPoint(Int32, Point4d)	Sets a homogeneous control point at the given index, where the 4-D representation is (x, y, z, w). The world 3-D, or Euclidean, representation is (x/w, y/w, z/w).
	SetPoint(Int32, Point3d, Double)	Sets a world 3-D, or Euclidean, control point and weight at a given index. The 4-D representation is (xw, yw, z*w, w).
	SetPoint(Int32, Double, Double, Double)	Sets a world 3-D, or Euclidean, control point at the given index. The 4-D representation is (x, y, z, 1.0).
	SetPoint(Int32, Double, Double, Double, Double)	Sets a homogeneous control point at the given index, where the 4-D representation is (x, y, z, w). The world 3-D, or Euclidean, representation is (x/w, y/w, z/w).
	SetWeight	Sets the weight of a control point at the given index Note, if the curve is non-rational, it will be converted to rational.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	UVNDirectionsAt	Calculates the U, V, and N directions of a NURBS curve control point similar to the method used by Rhino's MoveUVN command.
	ValidateSpacing	Simple check of distance between adjacent control points

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Reference

Rhino.Geometry.Collections Namespace