; June 21, 1997: On the Moon Europa 
;
; europa
;
; Fractal visionaries:
;
; It is sometimes said that fractals are a window to the infinite.  This
; much is undebatable.  But fractals are also a window to other worlds.
; Today's fractal is named "Europa" because it depicts a scene of total
; desolation on that ice-covered moon of Jupiter.  Do not despair when the
; parameter file appears to be drawing a blank black image.  Look close,
; dim the lights, tiny stars are there. What you are seeing is the black,
; star-infested sky of that bleak, airless satellite.
;
; The real picture begins about 2/3 of the way down the screen, where the
; icy surface, blue and cold, comes into view.  The distant sun, a blazing
; point at this great distance, lies just above and to the right of the
; scene, its dazzling reflection glinting from every ice crystal in turn
; as the satellite slowly rotates.
;
; Actually the scene is a picture of the Mandelbrot negative X-axis sliced
; in the XZ direction.  The line of symmetry lies about 1 inch from the
; bottom of the screen, (assuming a 15-inch monitor).  The picture is also
; a good demonstration of the human element in creating fractal art.  When
; I first saw the characteristics of this area, I knew that it would make
; a good Europa-like scene, and intentionally colored it to bring out its
; potential.  Such an effect would be near impossible to achieve by random
; color flowing.
;
; For tomorrow's fractal, I think I'll see what I can do with everyone's
; favorite midget -- the one on the negative X-axis at -1.76.  Today's
; picture has been posted in finished form to a.b.p.f. and a.f.p.
;
; Jim Muth
; jamth@mindspring.com
;
; START COMBINED FILE FOR 19.6===============================

On_the_Moon_Europa { ; time=0:01:36.78-SF5 on P4-2000
  reset=1960 type=formula formulafile=basicer.frm
  formulaname=man-yz-xz passes=1 center-mag=-0.00000\
  686598512544/-1.845082873438826/8.246947e+010/\
  -5.121e-005/359.999056918636597/-89.9990597420641762
  params=0/0/1/0 float=y maxiter=5000 inside=255
  logmap=yes periodicity=10
  colors=0007Ry7Rx8Qw8Qv9Qt9PsAPrAPqBOpBOoCNnCNmDNkD\
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}

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==========================================
;