setTbRadius( value ) {

		this.radiusFactor = value;
		this._tbRadius = this.calculateTbRadius( this.object );

		const curve = new EllipseCurve( 0, 0, this._tbRadius, this._tbRadius );
		const points = curve.getPoints( this._curvePts );
		const curveGeometry = new BufferGeometry().setFromPoints( points );


		for ( const gizmo in this._gizmos.children ) {

			this._gizmos.children[ gizmo ].geometry = curveGeometry;

		}

		this.dispatchEvent( _changeEvent );

	}
Sets gizmos radius factor and redraws gizmos.

@param {number} value - Value of radius factor.