8.2.5} Geometry directives

 Geometry directives are special commands enclosed between two lines
                 $Start_xxx ....... $End_xxx
 where "xxx" stands for "expansion", "translat" or "transform". They allow to
 provide respectively a coordinate expansion, a coordinate translation or a
 coordinate roto-translation of the bodies embedded between the starting and
 the ending directive lines. Directives can be nested.
 The body definitions which are contained between the lines
 "$Start_xxx" and "$End_xxx" are automatically modified according to the
 syntax described below.

Previous Index Next