This text is missing some spaces, please add them: Ifweimposeadiagramoftheoctagonba-guatotheplanroom,itsconfigurationimmediatelybecomesquiteclearinthatcase,iftheroomhasarectangularshape.
If we impose a diagram of the octagon ba-gua to the plan room, its configuration immediately becomes quite clear in that case, if the room has a rectangular shape.