<!-- SOLUV · part 164 -->
return this;

	}

	/**
	 * Factory method for creating an instance of this class from the given
	 * JSON object.
	 *
	 * @param {Object} data - A JSON object representing the serialized geometry.
	 * @return {CylinderGeometry} A new instance.
	 */
	static fromJSON( data ) {

		return new CylinderGeometry( data.radiusTop, data.radiusBottom, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );

	}

}

/**
 * A geometry class for representing a cone.
 *
 * ```js
 * const geometry = new THREE.ConeGeometry( 5, 20, 32 );
 * const material = new THREE.MeshBasicMaterial( { color: 0xffff00 } );
 * const cone = new THREE.Mesh(geometry, material );
 * scene.add( cone );
 * ```
 *
 * @augments CylinderGeometry
 * @demo scenes/geometry-browser.html#ConeGeometry
 */
class ConeGeometry extends CylinderGeometry {

	/**
	 * Constructs a new cone geometry.
	 *
	 * @param {number} [radius=1] - Radius of the cone base.
	 * @param {number} [height=1] - Height of the cone.
	 * @param {number} [radialSegments=32] - Number of segmented faces around the circumference of the cone.
	 * @param {number} [heightSegments=1] - Number of rows of faces along the height of the cone.
	 * @param {boolean} [openEnded=false] - Whether the base of the cone is open or capped.
	 * @param {number} [thetaStart=0] - Start angle for first segment, in radians.
	 * @param {number} [thetaLength=Math.PI*2] - The central angle, often called theta, of the circular sector, in radians.
	 * The default value results in a complete cone.
	 */
	constructor( radius = 1, height = 1, radialSegments = 32, heightSegments = 1, openEnded = false, thetaStart = 0, thetaLength = Math.PI * 2 ) {

		super( 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

		this.type = 'ConeGeometry';

		/**
		 * Holds the constructor parameters that have been
		 * used to generate the geometry. Any modification
		 * after instantiation does not change the geometry.
		 *
		 * @type {Object}
		 */
		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

	}

	/**
	 * Factory method for creating an instance of this class from the given
	 * JSON object.
	 *
	 * @param {Object} data - A JSON object representing the serialized geometry.
	 * @return {ConeGeometry} A new instance.
	 */
	static fromJSON( data ) {

		return new ConeGeometry( data.radius, data.height, data.radialSegments, data.heightSegments, data.openEnded, data.thetaStart, data.thetaLength );

	}

}

/**
 * A polyhedron is a solid in three dimensions with flat faces. This class
 * will take an array of vertices, project them onto a sphere, and then
 * divide them up to the desired level of detail.
 *
 * @augments BufferGeometry
 */
class PolyhedronGeometry extends BufferGeometry {

	/**
	 * Constructs a new polyhedron geometry.
	 *
	 * @param {Array<number>} [vertices] - A flat array of vertices describing the base shape.
	 * @param {Array<number>} [indices] - A flat array of indices describing the base shape.
	 * @param {number} [radius=1] - The radius of the shape.
	 * @param {number} [detail=0] - How many levels to subdivide the geometry. The more detail, the smoother the shape.
	 */
	constructor( vertices = [], indices = [], radius = 1, detail = 0 ) {

		super();

		this.type = 'PolyhedronGeometry';

		/**
		 * Holds the constructor parameters that have been
		 * used to generate the geometry. Any modification
		 * after instantiation does not change the geometry.
		 *
		 * @type {Object}
		 */
		this.parameters = {
			vertices: vertices,
			indices: indices,
			radius: radius,
			detail: detail
		};

		// default buffer data

		const vertexBuffer = [];
		const uvBuffer = [];

		// the subdivision creates the vertex buffer data

		subdivide( detail );

		// all vertices should lie on a conceptual sphere with a given radius

		applyRadius( radius );

		// finally, create the uv data

		generateUVs();

		// build non-indexed geometry

		this.setAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
		this.setAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
		this.setAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );

		if ( detail === 0 ) {

			this.computeVertexNormals(); // flat normals

		} else {

			this.normalizeNormals(); // smooth normals

		}

		// helper functions

		function subdivide( detail ) {

			const a = new Vector3();
			const b = new Vector3();
			const c = new Vector3();

			// iterate over all faces and apply a subdivision with the given detail value

			for ( let i = 0; i < indices.length; i += 3 ) {

				// get the vertices of the face

				getVertexByIndex( indices[ i + 0 ], a );
				getVertexByIndex( indices[ i + 1 ], b );
				getVertexByIndex( indices[ i + 2 ], c );

				//