[Fractint] FOTD 18-11-10 (Stone Arch Bridge [6])

18 Nov 2010

      FOTD -- November 18, 2010 (Rating 6)

Fractal visionaries and enthusiasts:

Today's image is an unfamiliar slice of the Julibrot, which I 
have named "Stone Arch Bridge".  While searching for a name, I 
noticed the row of arches across the bottom of the image, and 
was reminded of the railroad bridge across the Susquehanna River 
at Marysville, which is just north of Harrisburg.

The slice is centered at the western limit of the ever-smaller 
string of buds lined up out the negative X-axis of the Mandel-
brot set.  The orientation is at an angle rotated 31 degrees 
from the Parabolic toward the Oblate, though mostly Parabolic 
elements predominate.

The rating of a 6 means I am only mildly impressed by the image, 
though, because of the spectacular coloring, I do consider it 
worth nominal FOTD status.

The very brief calculation time of 8 seconds assures that very 
little effort will have been wasted if the resulting image lays 
an egg.

To avoid the possibility of ending up with an omelet, I suggest 
checking to see if the image is posted on the FOTD web site at:

       <http://www.Nahee.com/FOTD/>

After a heavy overnight thunder-storm, Wednesday dawned cloudy 
and blustery here at Fractal Central.  The conditions continued 
most all day, with the clouds breaking only long enough to give 
a glimpse of the setting sun.  The winds made the temperature of 
52F 11C seem surprisingly chilly.  The fractal cats made the 
most of things, checking every so often to be sure no unwanted 
cats were prowling nearby.

My day was slow enough to enjoy, but not so slow as to cause 
concern.  The next FOTD will be posted in 24 hours.  Until then, 
take care, and be ever so cautious when the aliens from Sirius C 
are snooping about.  They're as sneaky as a cat.

Jim Muth
jamth@mindspring.com

START PARAMETER FILE=======================================

Stone-Arch_Bridge  { ; time=0:00:08.27-SF5 on P4-2000
  reset=2004 type=formula formulafile=basicer.frm
  formulaname=SliceJulibrot2 center-mag=0.572006/\
  -0.350829/0.7022955/1/121/0 params=0/90/31/31/\
  -1.40115519/0/0/0 float=y maxiter=950 inside=255
  logmap=yes symmetry=none periodicity=6 passes=1
  colors=00000A00C01E02G03I34K55M76O87RC8UF9WHAWIBYJ\
  C`KDbKFeLGhNHjOImQJpSKtTLwVMyWNzVPxVRvUStUUpTVnTXk\
  SZhS_zRazRbzQdzQfzPgzPizPjzOkzOlzOmzOmzOmzOmzNmzNm\
  zNmzNmzNmzNmzNmzPmzRmzTmzUmzWmzYmzZmz`mzbmzdmzemzg\
  mzimzjmzlmznmzomzgmz_mzTmzLpzEtzHszJrzMqzOqzRpzToz\
  WozYnz`mzbmzemzgmzjmzlmzomzqmzpmzpmzpmzpmzpmzpmzpm\
  zpmzpmzpmzpmzpmzpmzpmzpmzqmzqmzqmzqmzqmzqmzqmzqmzo\
  mzmmzkmzimzgmzemzcmzamz_mzYmzWmzUmzSmzUmzVmzXmzYmz\
  _mz`mzbmzcmzemzfmzhmzimzjmzlmzmmzomzpmzrmzsmzumzvm\
  zxmzymzzmzxmzvmzumzsmzrmzpmznmzmmzkmzjmzhmzfmzemzc\
  mzbmz`mz_mz`mz`mz`lz`kyajxaiwahvaguafubfubfvbfvbfv\
  bfwcfwcfwcewcexcexdexdeydeydeydeyfmxgmwimvjmulmtmm\
  tjmjgmaemTbmK`mB`mN`mY`mhamkammbgoblqakp`jo`in_in_\
  hmZglYglYfkXejXejWdiWchVchUbgUmfTmfTmeSmdSmdPmeNme\
  LmfImfGmfEmgCmg9mg7mh5mh3mh3mh3mi3mj3mk3mk3ml3mm3m\
  n3mn6ml9mjCmhFmfImdLmbszz }

frm:SliceJulibrot2   {; draws most slices of Julibrot
  pix=pixel, u=real(pix), v=imag(pix),
  a=pi*real(p1*0.0055555555555556),
  b=pi*imag(p1*0.0055555555555556),
  g=pi*real(p2*0.0055555555555556),
  d=pi*imag(p2*0.0055555555555556),
  ca=cos(a), cb=cos(b), sb=sin(b), cg=cos(g),
  sg=sin(g), cd=cos(d), sd=sin(d),
  p=u*cg*cd-v*(ca*sb*sg*cd+ca*cb*sd),
  q=u*cg*sd+v*(ca*cb*cd-ca*sb*sg*sd),
  r=u*sg+v*ca*sb*cg, s=v*sin(a),
  c=p+flip(q)+p3, z=r+flip(s)+p4:
  z=sqr(z)+c
  |z|<=9 }

END PARAMETER FILE=========================================