[page:Geometry] →
		[name]
		Creates a tube that extrudes along a 3d curve
		Example
var CustomSinCurve = THREE.Curve.create(
    function ( scale ) { //custom curve constructor
        this.scale = (scale === undefined) ? 1 : scale;
    },
    function ( t ) { //getPoint: t is between 0-1
        var tx = t * 3 - 1.5,
            ty = Math.sin( 2 * Math.PI * t ),
            tz = 0;
        return new THREE.Vector3(tx, ty, tz).multiplyScalar(this.scale);
    }
);
var path = new CustomSinCurve( 10 );
var geometry = new THREE.TubeGeometry(
    path,  //path
    20,    //segments
    2,     //radius
    8,     //radiusSegments
    false  //closed
);
		Constructor
		[name]([page:Curve path], [page:Integer segments], [page:Float radius], [page:Integer radiusSegments], [page:Boolean closed])
		
		path — [page:Curve] - A path that inherits from the [page:Curve] base class
		segments — [page:Integer] - The number of segments that make up the tube, default is 64
		radius — [page:Float] - The radius of the tube, default is 1
		radiusSegments — [page:Integer] - The number of segments that make up the cross-section, default is 8 
		closed — [page:Float] Is the tube open or closed, default is false 
		
		Properties
		[property:Object parameters]
		
		An object with all of the parameters that were used to generate the geometry.
		
		[property:Array tangents]
		
		An array of [page:Vector3] tangents
		
		[property:Array normals]
		
		An array of [page:Vector3] normals
		
		[property:Array binormals]
		
		An array of [page:Vector3] binormals
		
		Methods
		THREE.TubeGeometry.FrenetFrames([page:Curve path], [page:Integer segments], [page:Boolean closed])
		
		path — A path that inherits from the [page:Curve] base class 
		segments — The number of segments that make up the tube 
		closed — Is the tube open or closed
		
		
		A static method that generates the Frenet Frames. This is internally run on any new TubeGeometry and then the
		generated tangents, normals, and binormals are exposed as properties on the TubeGeometry object.
		
		Source
		[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]