Bevel Type
The simple type, ST_BevelPresetType, defines a preset bevel for a shape and some examples can be seen in figure 3.
Figure 9: Different bevel types applied to a shape
The different types of bevels available are:
relaxedInset<>
circle<>
slope<>
cross<>
angle<>
softRound
convex<>
coolSlant<>
divot<>
riblet<>
hardedge<>
artDeco