June 10, 1997: Waves in the Night | June 9 | June 11 | 1997 | FOTD Home |
Fractal
visionaries:
About eight years ago, when I saw the Mandelbrot set appear on my
screen for the first time, the first area I examined was Seahorse
Valley. I don't think it had been given its name yet, but it
was
the most interesting area of the whole set. Since that time,
Seahorse Valley, located at -0.75, has been my favorite place to go
when I wanted a good fractal with as little work as possible.
I never did find a seahorse as convincing as the elephants parading out
of East Valley; I saw only their tails. But that doesn't
matter
-- I'm sure the seahorses are there. Otherwise, why would it
have
been named Seahorse Valley.
Today's fractal, which I named "Midnight" because of the somber colors,
is an oblique slice of Seahorse Valley, best viewed in reduced
light. I won't even attempt to describe the orientation of
the
slice. I can say only that it is near horizontal, but off to
the
side and tilted at something like a 10 degree angle.
These oblique planes of the M-set are filled throughout with swirling
and stretching elements, much as in today's image. But the
rippling effect where the two prominent center elements skew off the
plane of the screen is new to me. Nothing like it appears
anywhere in the classic Mandelbrot or Julia sets.
I'm becoming a bit hooked on the oblique slices of the Julibrot, which
are virtually unexplored. When that happens there's nothing
to do
but explore like crazy until my enthusiasm runs its course.
So
bear with me if I post a few more oblique images. I'll soon
return to fancier fractals.
As is always the case, the finished image has been posted to a.b.p.f.
and a.f.p. for convenience.
Jim Muth
jamth@mindspring.com
START COMBINED FILE FOR 19.6===============================
Waves_in_the_Night { ; time=0:02:19.78-SF5 on P4-2000
reset=1960 type=formula formulafile=basicer.frm
formulaname=Man-YZ-XZ passes=t center-mag=1.25579\
/-0.144754/25.40284 params=0.16/0.75/0.1/0 float=y
maxiter=14400 inside=253 logmap=10 periodicity=10
colors=0008CC8BB8BB7AA7997986876866755745645635524\
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8A78A88B88B99B99CA9CA9CA9DBADBAECAECAEDAFDBFEBFEBG\
FBGFBGFCHGCHGCHHCIHCIIDJIDJJDJJDKKDKKEKKELLELLELME\
MMFMNFMNFNOFNOGOPGOPGOPGPQGPQHPRHQRHQSHQSHRTIRTIRT\
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`LYaMYaMZbMZbMZbM_cN_cN_dN`dN`eN`eOafOafOafObgObgP\
chPchPciPdiPdjQdjQekQekQekPdiOdhOdgNceNcdMccMcbLba\
Lb_KbZKbYJaXJaVIaUIaTH`SG`RG`PF`OF_NE_ME_LD_JDZICZ\
HCZGBZEBYDAYCAYBBXCBXKBXKCXKCXKCXKCXKDXUDXUDXUDXUE\
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IXcIXcIXcJXcJXcJXcJXcKXcKXcKXcKXcLXmLXmLXmLXmMXmMX\
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WmQWmRWmRWmRWmRWmSWmSWmSWmSWmTWmTWmTWmTWmUWmUWmUWm\
UWmVWmVWmVWmVWmWWmWWmWWmWWmXWmXWmXWmUUmUUmUUmUUmUU\
mUUmUUmUUmUUmUUmCDFUUmUUm }
frm:Man-YZ-XZ {; Jim Muth, Thanks to Benno
; p2 = 0 = Julibrot YZ plane
; p2 = 1 = Julibrot XZ plane
; p2 = >0 <1 = Oblique planes
z=real(pixel)+flip(real(p1)),
c=imag(pixel)+flip(imag(p1)),
a=p2, b=flip(cos(asin(p2))):
z=sqr(z)+((a+b)*c),
|z| <= 25 }
END COMBINED FILE FOR 19.6=================================