Import
NURBSCurve is an addon, and must be imported explicitly, see Installation#Addons.
import { NURBSCurve } from 'three/addons/curves/NURBSCurve.js';Constructor
new NURBSCurve( degree : number, knots : Array.<number>, controlPoints : Array.<(Vector2|Vector3|Vector4)>, startKnot : number, endKnot : number )
Constructs a new NURBS curve.
| degree |
The NURBS degree. |
| knots |
The knots as a flat array of numbers. |
| controlPoints |
An array holding control points. |
| startKnot |
Index of the start knot into the |
| endKnot |
Index of the end knot into the |
Properties
.controlPoints : Array.<Vector4>
An array of control points.
.degree : number
The NURBS degree.
.endKnot : number
Index of the end knot into the knots array.
.knots : Array.<number>
The knots as a flat array of numbers.
.startKnot : number
Index of the start knot into the knots array.
Methods
.getPoint( t : number, optionalTarget : Vector3 ) : Vector3
This method returns a vector in 3D space for the given interpolation factor.
| t |
A interpolation factor representing a position on the curve. Must be in the range |
| optionalTarget |
The optional target vector the result is written to. |
- Overrides: Curve#getPoint
- Returns: The position on the curve.
.getTangent( t : number, optionalTarget : Vector3 ) : Vector3
Returns a unit vector tangent for the given interpolation factor.
| t |
The interpolation factor. |
| optionalTarget |
The optional target vector the result is written to. |
- Overrides: Curve#getTangent
- Returns: The tangent vector.