Vertically adjustable folding top compartment floor on a vehicle with a folding or convertible top, which floor is connected by way of foldable side walls with the vehicle body. A retractable hardtop assembly includes a front section that is connected by a linkage to a vehicle and a rearward portion that is connected by a separate linkage to a decklid of the vehicle. A pig thereby produced is a cast piece formed from a basic material and one or several alloy components and has been formed from a melt into which energy had been briefly introduced by a variable physical field in order to increase mixed crystal formation. The transformation component calculates at least a first motion parameter associated with translational motion for the first video frame and at least a second motion parameter associated with the translational motion for the second video frame.