code: function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {
  
  	Geometry.call( this );
  
  	this.type = 'TubeGeometry';
  
  	this.parameters = {
  		path: path,
  		tubularSegments: tubularSegments,
  		radius: radius,
  		radialSegments: radialSegments,
  		closed: closed
  	};
  
  	if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );
  
  	var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );
  
  	// expose internals
  
  	this.tangents = bufferGeometry.tangents;
  	this.normals = bufferGeometry.normals;
  	this.binormals = bufferGeometry.binormals;
  
  	// create geometry
  
  	this.fromBufferGeometry( bufferGeometry );
  	this.mergeVertices();
  
  }
docs: @author oosmoxiecode / https://github.com/oosmoxiecode
  @author WestLangley / https://github.com/WestLangley
  @author zz85 / https://github.com/zz85
  @author miningold / https://github.com/miningold
  @author jonobr1 / https://github.com/jonobr1
  @author Mugen87 / https://github.com/Mugen87
  
   TubeGeometry