In addition to the standard set of basic graphic primitives describe in
the previous chapter, HIGZ provides also a set of graphic
"macroprimitives". These graphic macroprimitives are included in HIGZ for
three main reasons:
- Functionality: it is easier to define a circle with its center and its
radius than to compute all the necessary points to draw a polyline.
- Precision, for instance a circle has to be stored as a circle and not
as a sequence of polylines.
- Compactness of the graphic data base.