three.js/src/objects/Line.js

/**
 * @author mr.doob / http://mrdoob.com/
 */

THREE.Line = function ( geometry, materials, type ) {

	THREE.Object3D.call( this );

	this.geometry = geometry;
	this.materials = materials instanceof Array ? materials : [ materials ];
	
	this.type = ( type != undefined ) ? type : THREE.LineStrip;

};

THREE.LineStrip = 0;
THREE.LinePieces = 1;

THREE.Line.prototype = new THREE.Object3D();
THREE.Line.prototype.constructor = THREE.Line;