[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.

## Code Example

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

## Examples

[example:webgl_geometry_extrude_splines WebGL / 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: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:.curveType] is *catmullrom*, defines catmullrom's tension.

## Methods

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

## Source

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