LOGO-L> random based hexa fractal 
Author Message
 LOGO-L> random based hexa fractal

;Hello John Gough
;Here is the code for a hexagonal fractal drawn using random points  
;Best Regards.

to get.point :lev
if :lev =0 [stop]
make "T.pt item 1 + random 6 [[0 0] [400 0] [600 246] [400 492] [0 492][-200
plot.midpoint :z  :T.pt
make "z pos
get.point :lev-1

to go ;start
make "z list random 600 random 600 cs ht
;setpensize [2 2]
get.point 10000

to plot.midpoint :Pt.1 :Pt.2
pu setx -100+ ((first :Pt.1) + (first :Pt.2)) / 3
sety -100+ ((last :Pt.1) + (last :Pt.2)) / 3
pd fd 0 pu


John Gough wrote :-
I have tried some of the obvious adaptations of this "game" to see if I
could generate a Sierpinski "square", also known as a "carpet" where the
triangle is known as a "gasket". Start with four points instead of three,
and roll as before, then move to the midpoint between where you last were
and the new rolled point. But so far none of my attempts have worked.
Similarly, changing from midpoint constructions to trisection constructions
does not result in anything except a random filling in of the entire
Maybe someone out there can suggest other chaotic "games" which generate
surprising fractal images. The book discusses a set of transformations
which result in the fern fractal, but I haven't been able to identify a
suitable set of four transformations. Maybe I'm missing something in my
reading of the book.

Sat, 08 Apr 2000 03:00:00 GMT  
 [ 1 post ] 

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