[page:Curve] →

# [name]

Create a smooth 3d spline curve from a series of points using the [link:https://en.wikipedia.org/wiki/Centripetal_Catmull-Rom_spline Catmull-Rom] algorithm.

## Example

`//Create a closed wavey loop var curve = new THREE.CatmullRomCurve3( [ new THREE.Vector3( -10, 0, 10 ), new THREE.Vector3( -5, 5, 5 ), new THREE.Vector3( 0, 0, 0 ), new THREE.Vector3( 5, -5, 5 ), new THREE.Vector3( 10, 0, 10 ) ] ); var points = curve.getPoints( 50 ); var geometry = new THREE.BufferGeometry().setFromPoints( points ); var material = new THREE.LineBasicMaterial( { color : 0xff0000 } ); // Create the final object to add to the scene var curveObject = new THREE.Line( geometry, material );`

### [example:webgl_geometry_extrude_splines geometry / extrude / splines]

## Constructor

### [name]( [param:Array points], [param:Boolean closed], [param:String curveType], [param:Float tension] )

points – An array of [page:Vector3] points
closed – Whether the curve is closed. Default is *false*.
curveType – Type of the curve. Default is *centripetal*.
tension – Tension of the curve. Default is *0.5*.

## Properties

See the base [page:Curve] class for common properties.

### [property:Boolean isCatmullRomCurve3]

Used to check whether this or derived classes are CatmullRomCurve3s. Default is *true*.
You should not change this, as it used internally for optimisation.

### [property:Array points]

The array of [page:Vector3] points that define the curve. It needs at least two entries.

### [property:Boolean closed]

The curve will loop back onto itself when this is true.

### [property:String curveType]

Possible values are *centripetal*, *chordal* and *catmullrom*.

### [property:float tension]

When [page:.type] is *catmullrom*, defines catmullrom's tension.

## Methods

See the base [page:Curve] class for common methods.

[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]