Here is some stuff I played with since the last
two days:

#macro Geo_flower ( rad_whole_thing, step_num, line_thickness, smoother, circonf )

I made this macro quite quickly,  and it works well.
In fact,  the only problem is that this macro doesn't
have a great usefullness !  But it doesn' t matter,
I did it as a challenge,  in trying to ask the computer
to find the good radius',  dependently of the number
of steps a given shape has been programmed for.
Also,  a "smoother" keyword give the possibility
to smooth the curves...  The whole thing is done
using csg and trig calculations.

Is this an idea of some interest ?...  Or should I move
somewhere else ?

               Alex Pilot