NurbsSurfaceData Class

A class used to represent the definition of a NURBS surface.

Inheritance Hierarchy

SystemObject
Autodesk.Revit.DBNurbsSurfaceData

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public class NurbsSurfaceData : IDisposable

Public Class NurbsSurfaceData
	Implements IDisposable

public ref class NurbsSurfaceData : IDisposable

type NurbsSurfaceData = 
    class
        interface IDisposable
    end

The NurbsSurfaceData type exposes the following members.

Constructors

	Name	Description
	NurbsSurfaceData	Copy constructor.

Properties

	Name	Description
	DegreeU	The degree of the spline in the u-direction.
	DegreeV	The degree of the spline in the v-direction.
	IsRational	Tells if the spline is rational or not. If it is true (rational), then the NURBS is a piecewise rational polynomial function. If it is false (non-rational), then the NURBS is a piecewise polynomial function.
	IsValidObject	Specifies whether the .NET object represents a valid Revit entity.
	ReverseOrientation	If true, the surface's orientation is opposite to the canonical parametric orientation, otherwise it is the same. The canonical parametric orientation is a counter-clockwise sense of rotation in the uv-parameter plane. Extrinsically, the oriented normal vector for the canonical parametric orientation points in the direction of the cross product dS/du x dS/dv, which S(u, v) is the parameterized surface.

Methods

	Name	Description
	Create	Construct NurbsSurfaceData based on NURBS surface data, where the weights are supplied. The NURBS surface will be (piecewise) polynomial if all the weights are equal, rational if not. Note: A rational polynomial is a quotient of two polynomials; this includes a polynomial, which can be thought of as a quotient with denominator equal to 1.
	Dispose	Releases all resources used by the NurbsSurfaceData
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object)
	GetControlPoints	Get the list of control points.
	GetHashCode	Serves as the default hash function. (Inherited from Object)
	GetKnotsU	Get the list of knots in the u-direction.
	GetKnotsV	Get the list of knots in the v-direction.
	GetType	Gets the Type of the current instance. (Inherited from Object)
	GetWeights	Get the list of weights.
	IsValid	Check if the object contains a valid NurbsSurfaceData.
	ToString	Returns a string that represents the current object. (Inherited from Object)