setFromArray( array ) {

		this.makeEmpty();

		for ( let i = 0, il = array.length; i < il; i += 3 ) {

			this.expandByPoint( _vector$b.fromArray( array, i ) );

		}

		return this;

	}
Sets the upper and lower bounds of this box so it encloses the position data
in the given array.

@param {Array<number>} array - An array holding 3D position data.
@return {Box3} A reference to this bounding box.