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title: NURBSVolume category: Addons layout: docs

NURBSVolume

This class represents a NURBS volume.

Implementation is based on (x, y [, z=0 [, w=1]]) control points with w=weight.

Import

NURBSVolume is an addon, and must be imported explicitly, see Installation#Addons.

import { NURBSVolume } from 'three/addons/curves/NURBSVolume.js';

Constructor

new NURBSVolume( degree1 : number, degree2 : number, degree3 : number, knots1 : Array.<number>, knots2 : Array.<number>, knots3 : Array.<number>, controlPoints : Array.<Array.<Array.<(Vector2|Vector3|Vector4)>>> )

Constructs a new NURBS surface.

degree1 | The first NURBS degree.
---|---
degree2 | The second NURBS degree.
degree3 | The third NURBS degree.
knots1 | The first knots as a flat array of numbers.
knots2 | The second knots as a flat array of numbers.
knots3 | The third knots as a flat array of numbers.
controlPoints | An array^3 holding control points.

Methods

.getPoint( t1 : number, t2 : number, t3 : number, target : Vector3 )

This method returns a vector in 3D space for the given interpolation factor. This vector lies within the NURBS volume.

t1 | The first interpolation factor representing the u position within the volume. Must be in the range [0,1].
---|---
t2 | The second interpolation factor representing the v position within the volume. Must be in the range [0,1].
t3 | The third interpolation factor representing the w position within the volume. Must be in the range [0,1].
target | The target vector the result is written to.

Source

examples/jsm/curves/NURBSVolume.js