There are only two types of shapes: the true one and the false one, or "
start with the inner circle and the end with the outer one" versus the
other way around. An over the edge half-cube is build out of three of
these shapes with the straight borders of the shapes connected to each
other.
Each shape is build out of two half-circles and two straight lines. This
immitates natural forms, even more the assembly of the three shapes over
the edge, though this construction still reminds to its technical origin.
In combination with more half-cubes, the composition of shapes gather a
natural vegegative appearance. Quite inherently a representation of the
conflict of the nature and the technical world, these are the perfect
virtual garden elements for any park or garden and especially the virtue
of no-parking zones.