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fractint-digest         Monday, July 16 2001         Volume 01 : Number 582




----------------------------------------------------------------------

Date: Fri, 13 Jul 2001 11:48:40 +0200
From: "Jean-Pierre Louvet" <[e-mail]>
Subject: (fractint) Fractal Art FAQ

Version 1.5 of the Fractal Art FAQ is at

http://fractals.iuta.u-bordeaux.fr/F-art-faq/ (main site)
http://www.fractalus.com/fractal-art-faq/ (thanks to Damien Jones
http://www.fractovia.org/F-art-faq/ (will be updated soon).

Any suggestion to improve this document is welcome. I really hope your
contribution. Note that the best address to private mails concerning this
FAQ is [e-mail]
(this address is read by the 3 coordinators), and for a public discussion
about this FAQ the fractal-art discussion list is strongly suggested.

Best regards.

- -------------------------------------------------------------------------
J.P. Louvet                | Phone :  [phone]
IUT Universite Bordeaux 1  |
33405 Talence CEDEX France | email : [e-mail]
- -------------------------------------------------------------------------
Fractales sur serveur Web IUT Universite Bordeaux 1 :
http://fractals.iuta.u-bordeaux.fr
- -------------------------------------------------------------------------


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------------------------------

Date: Fri, 13 Jul 2001 08:35:05 EDT
From: [e-mail]
Subject: (fractint) C-FOTD  13-07-01  (Fractal Forest [7])

Classic FOTD -- July 13, 2001 (Rating 7)

Fractal visionaries and enthusiasts:

I enjoy trees, and since real trees are fractal in nature, it
should be no surprise that tree-like figures are found in
fractals.  Today's image pictures one of these fractal trees.

I originally had named the picture "Tree", but since the tree in
the picture is but one of an infinity, I finally decided on the
name "Fractal Forest".  The image is almost, but not quite, part
of a Julia set of the (-Z)^1.618034+C Julibrot figure.  It is
not a Julia set because the direction of the slice is rotated
1.8 degrees from the Julia direction.  This slight rotation
makes little difference in the overall appearance of the image,
though it does give the 'tree' a more stylized appearance.

This type of image is quite common in the world of fractals, and
it is closely connected to a rocky-landscape type of image that
I occasionally investigate.  In a day or so, I'll give an
example of the rocky landscape hiding in today's tree-like image.

I used John Goering's formula to draw the image and do the
rotating.  This formula can draw more orientations within the
Julibrot than any other I know of, though there are still some
directions that it cannot reach.

The attached parameter file renders in a couple minutes, which
is fast enough for all but the busiest fractaliers.  For those
busy fractaliers, the GIF image will soon be posted on Paul's
web site at:

          <http://home.att.net/~Paul.N.Lee/FotD/FotD.html>

and on Scott's site at:

          <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html>

The fractal weather today was near-perfect, with blue skies,
puffy clouds, and a happy-cat temperature of 82F (28C).
Unfortunately, the cats were so happy that they spent most of
the day sleeping.

As for me, I'll have to spend most of the day working.  And the
day is just starting.  But I shall return with a new FOTD in 24
hours or so.  Until that glorious moment arrives, take care, and
enjoy the day.


Jim Muth
[e-mail]


START 20.0 PAR-FORMULA FILE================================

Fractal_Forest     { ; time=0:02:54.55--SF5 on a P200
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  formulaname=SliceJB-new-min passes=1 center-mag=0.\
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  zDczFczGczGczIczJczLczLcz
  }

frm:SliceJB-new-min {; by John R. H. Goering, July 1999
  pix=pixel, u=real(pix), v=imag(pix), a=pi*real(p1),
  b=pi*imag(p1), g=pi*real(p2), d=pi*imag(p2), 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)+(p4), z=r+flip(s)+(p5):
  z=(-z)^(p3)+c
  |z|<=100
  }

END 20.0 PAR-FORMULA FILE==================================

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------------------------------

Date: Fri, 13 Jul 2001 16:38:05 -0000
From: "Andrew Coppin" <[e-mail]>
Subject: Re: (fractint) C-FOTD 12-07-01 (An Illegal Midget [8])

>From: Jim Muth <[e-mail]>
>Reply-To: [e-mail]
>To: [e-mail]
>CC: [e-mail]
>Subject: (fractint) C-FOTD  12-07-01  (An Illegal Midget [8])
>Date: Thu, 12 Jul 2001 10:44:54 -0400 (EDT)
>
>
>Classic FOTD -- July 12, 2001 (Rating 8)
>
>Fractal visionaries and enthusiasts:

This is indeed a special image, well deserving its rating. Thankyou Jim!

Andrew.

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------------------------------

Date: Fri, 13 Jul 2001 16:17:07 -0500
From: Programmer Dude <[e-mail]>
Subject: Re: (fractint) Re: [philofractal] C-FOTD  11-07-01  (Sea-What [4])

"Morgan L. Owens" wrote:

> Textures in 3-D software like POV-Ray are four-dimensional...

In what sense?

- --
|_ CJSonnack <[e-mail]> _____________| How's my programming? |
|_ http://www.Sonnack.com/ ___________________| Call: 1-800-DEV-NULL  |
|_____________________________________________|_______________________|

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------------------------------

Date: Fri, 13 Jul 2001 16:33:26 -0500
From: Programmer Dude <[e-mail]>
Subject: Re: (fractint) C-FOTD 12-07-01 (An Illegal Midget [8])

Andrew Coppin wrote:

> This is indeed a special image, well deserving its rating. Thankyou Jim!

Ditto!!

I especially liked the "flame" effects!

- --
|_ CJSonnack <[e-mail]> _____________| How's my programming? |
|_ http://www.Sonnack.com/ ___________________| Call: 1-800-DEV-NULL  |
|_____________________________________________|_______________________|

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------------------------------

Date: Fri, 13 Jul 2001 16:50:11 -0500
From: Programmer Dude <[e-mail]>
Subject: (fractint) Images of .MAP files

Gentle Listers-

I'm curious, and I didn't find anything similar on the FractInt site.
A while back I wanted a way to visual the many, many .MAP files I've
accumulated for FractInt, so I wrote a utility to create small .GIF
files (256 x 100) displaying the .MAP.

Did I miss an existing tool (seems kind of a no-brainer, so I can't
believe I'm the first)?  Is there any interest?

I can offer: a unix-based version that should compile under any decent
C compiler, or a Windows version for VC++ v6.  NOTE: both use the gd 1.3
library that is no longer supported by its author (that GIF legal mess).

I couldn't *fully*legally* make the images I've made available, at least
not as .GIFs.  (Also, the Windows version is a console program.)

So,... if there does seem to be any interest, I might put all the common
.MAP images up as .JPG and/or .PNGs.  It'd be fun, again assuming anyone
wants this, to have an image generator that you could upload a new .MAP
file to and get back an image.

But again, I don't know if anyone cares.

- --
|_ CJSonnack <[e-mail]> _____________| How's my programming? |
|_ http://www.Sonnack.com/ ___________________| Call: 1-800-DEV-NULL  |
|_____________________________________________|_______________________|

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------------------------------

Date: Sat, 14 Jul 2001 14:16:51 +1200
From: "Morgan L. Owens" <[e-mail]>
Subject: Re: (fractint) Re: [philofractal] C-FOTD  11-07-01  (Sea-What [4])

At 09:17 14/07/2001, Programmer Dude wrote:
>"Morgan L. Owens" wrote:
>
> > Textures in 3-D software like POV-Ray are four-dimensional...
>
>In what sense?

For each point (X,Y,Z) in space, the texture specifies a fourth number
which which (via the colourmap) gives the colour of that point.

To come at it from the other direction. If you're trying to reconstruct the
texture used on a given set of points (the surface of a sphere, let's say)
you need to know more than just the three spatial coordinates of each
point, you need to know where they lie along the colourmap dimension as well.


Just as you need more than just latitude and longitude to locate an
aircraft, just as Newtonian mechanics uses three numbers for position and
another three for momentum, and just as you need three numbers to position
and another three to orient an object in space unless it's circularly
symmetric along one or more axes.

Morgan L. Owens
"The wind is southerly here, but southwesterly over there. And that's just
at ground level."



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------------------------------

Date: Fri, 13 Jul 2001 19:50:02 -1000
From: "David Jones" <[e-mail]>
Subject: Re: (fractint) Images of .MAP files

On 13 Jul 01 at 16:50, Programmer Dude wrote:

> So,... if there does seem to be any interest, I might
> put all the common .MAP images up as .JPG and/or .PNGs.
> It'd be fun, again assuming anyone wants this, to have
> an image generator that you could upload a new .MAP file
> to and get back an image.
>
> But again, I don't know if anyone cares.

I care - go for it! It would be a lot more helpful for
picking color maps to be able to see the colors in it ...

David
[e-mail]


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------------------------------

Date: Fri, 13 Jul 2001 19:50:02 -1000
From: "David Jones" <[e-mail]>
Subject: Re: (fractint) Images of .MAP files

On 13 Jul 01 at 16:50, Programmer Dude wrote:

> I'm curious, and I didn't find anything similar on the
> FractInt site. A while back I wanted a way to visual the
> many, many .MAP files I've accumulated for FractInt, so
> I wrote a utility to create small .GIF files (256 x 100)
> displaying the .MAP.

[snips]

> I can offer: a unix-based version that should compile
> under any decent C compiler, or a Windows version for
> VC++ v6.

Forget GIF, go with PNG. You can do a Windows version if
you have to, but I'd much rather have the UNIX/Linux
version.

David
[e-mail]


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------------------------------

Date: Sat, 14 Jul 2001 09:59:53 -0400 (EDT)
From: Jim Muth <[e-mail]>
Subject: (fractint) C-FOTD  14-07-01  (Monolith Monsters [5])

Classic FOTD -- July 14, 2001 (Rating 5)

Fractal visionaries and enthusiasts:

Today's image is a different view of the same forest that held
the tree which appeared in yesterday's FOTD.  But instead of
viewing the scene from close to the Julia direction, today we
view it from the Mandelbrot direction.

I named the picture "Monolith Monsters" after one of my favorite
old sci-fi movies.  I rated it a perfectly average 5.

What once was a figure-eight edged with tree-like shapes has now
become a valley edged with monolithic rocks -- a scene on an
alien planet if you wish.  The alien rocks, which once formed
the crown of a tree, decrease in size as they fade into the
distance, and the alien sky above, not quite like earth's, has
an unearthly rusty tinge near the horizon.

I would estimate the average temperature on this planet, which
is circling an orange class-K star, to be -40F, which is also
- -40C.  The atmospheric pressure appears to be about 250mb, 1/4
that of earth's.  But unfortunately, there is no water, and life
never had a chance to get started.

The curious rocks have obviously been formed by volcanism,
though the chemical composition that would crystallize into such
strange shapes is yet to be determined.

Several deep fault lines extend diagonally through the scene,
and even a short way into the sky.  I'll not attempt to explain
how an atmosphere can support fault lines, but the atmospheric
discontinuities *are* there.

Finally, the trip to this exotic place takes only 2-1/2 minutes,
via the parameter-file spaceship.  For those without a ticket,
the scene will soon be showing at the following web sites:

          <http://home.att.net/~Paul.N.Lee/FotD/FotD.html>

and:

          <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html>

The fractal weather today was once again perfect, with blue
skies, puffy clouds, (which are also possible to create with
fractals), and a very earth-like temperature of 82F (28C).  The
fractal cats, who really have little interest in fractals, spent
most of the day on the porch, taking it easy.

I've been taking it a little too easy for several days, and I
now find myself with a yard of grass in need of a trimming.  Oh
well, there's only one way I know to get the job done -- and
that's to get started.  So until next time, take care, and do
fractals exist on other planets?


Jim Muth
[e-mail]


START 20.0 PAR-FORMULA FILE================================

Monolith_Monsters  { ; time=0:02:36.32--SF5 on a P200
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frm:SliceJB-new-min {; by John R. H. Goering, July 1999
  pix=pixel, u=real(pix), v=imag(pix), a=pi*real(p1),
  b=pi*imag(p1), g=pi*real(p2), d=pi*imag(p2), 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)+(p4), z=r+flip(s)+(p5):
  z=(-z)^(p3)+c
  |z|<=100
  }

END 20.0 PAR-FORMULA FILE==================================


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------------------------------

Date: Sun, 15 Jul 2001 03:04:10 +1200
From: "Morgan L. Owens" <[e-mail]>
Subject: (fractint) Re: C-FOTD  14-07-01  (Monolith Monsters [5])

At 01:59 15/07/2001, Jim Muth wrote:
>  do
>fractals exist on other planets?
>

http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10691.jpeg
http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25354.jpeg
http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10598.jpeg
http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10703.jpeg
http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25440.jpeg
http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10634.jpeg
http://photojournal.jpl.nasa.gov/archive/PIA01655.gif
http://photojournal-a.jpl.nasa.gov/outdir/PIA01297.25528.jpeg
http://photojournal.jpl.nasa.gov/archive/PIA01651.gif
http://photojournal-b.jpl.nasa.gov/outdir/PIA02556.10681.jpeg
http://photojournal-a.jpl.nasa.gov/outdir/PIA00829.25718.jpeg


Morgan L. Owens
"Come and see the Real Thing."


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------------------------------

Date: Sat, 14 Jul 2001 15:20:54 -0000
From: "Andrew Coppin" <[e-mail]>
Subject: Re: (fractint) Re: C-FOTD 14-07-01 (Monolith Monsters [5])

>From: "Morgan L. Owens" <[e-mail]>
>Reply-To: [e-mail]
>To: [e-mail]
>CC: [e-mail]
>Subject: (fractint) Re: C-FOTD  14-07-01  (Monolith Monsters [5])
>Date: Sun, 15 Jul 2001 03:04:10 +1200
>
>At 01:59 15/07/2001, Jim Muth wrote:
>>  do
>>fractals exist on other planets?
>>
>
>http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10691.jpeg
>http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25354.jpeg
>http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10598.jpeg
>http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10703.jpeg
>http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25440.jpeg
>http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10634.jpeg
>http://photojournal.jpl.nasa.gov/archive/PIA01655.gif
>http://photojournal-a.jpl.nasa.gov/outdir/PIA01297.25528.jpeg
>http://photojournal.jpl.nasa.gov/archive/PIA01651.gif
>http://photojournal-b.jpl.nasa.gov/outdir/PIA02556.10681.jpeg
>http://photojournal-a.jpl.nasa.gov/outdir/PIA00829.25718.jpeg
>
>
>Morgan L. Owens
>"Come and see the Real Thing."

Your point being?

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------------------------------

Date: Sat, 14 Jul 2001 11:07:49 -0500
From: Bob Margolis <[e-mail]>
Subject: Re: (fractint) Re: C-FOTD  14-07-01  (Monolith Monsters [5])

"Morgan L. Owens" wrote:
>
>
>
> http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10691.jpeg
> http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25354.jpeg
> http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10598.jpeg
> http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10703.jpeg
> http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25440.jpeg
> http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10634.jpeg
> http://photojournal.jpl.nasa.gov/archive/PIA01655.gif
> http://photojournal-a.jpl.nasa.gov/outdir/PIA01297.25528.jpeg
> http://photojournal.jpl.nasa.gov/archive/PIA01651.gif
> http://photojournal-b.jpl.nasa.gov/outdir/PIA02556.10681.jpeg
> http://photojournal-a.jpl.nasa.gov/outdir/PIA00829.25718.jpeg
>


FYI: For each jpeg there was a "File Not Found" message when I clicked
on them. Only the two gifs were viewable.

Cheers,

Bob
- --
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                              --Dan Rather, tv news anchor

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Date: Sun, 15 Jul 2001 16:08:46 +1200
From: "Morgan L. Owens" <[e-mail]>
Subject: Re: (fractint) Re: C-FOTD  14-07-01  (Monolith Monsters [5])

At 04:07 15/07/2001, Bob Margolis wrote:
>"Morgan L. Owens" wrote:
> >
> >
> >
> > http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10691.jpeg
> > http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25354.jpeg
> > http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10598.jpeg
> > http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10703.jpeg
> > http://photojournal-a.jpl.nasa.gov/outdir/PIA03000.25440.jpeg
> > http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10634.jpeg
> > http://photojournal.jpl.nasa.gov/archive/PIA01655.gif
> > http://photojournal-a.jpl.nasa.gov/outdir/PIA01297.25528.jpeg
> > http://photojournal.jpl.nasa.gov/archive/PIA01651.gif
> > http://photojournal-b.jpl.nasa.gov/outdir/PIA02556.10681.jpeg
> > http://photojournal-a.jpl.nasa.gov/outdir/PIA00829.25718.jpeg
> >
>
>
>FYI: For each jpeg there was a "File Not Found" message when I clicked
>on them. Only the two gifs were viewable.

Well, the proper pages all had the same URL, so it wouldn't have helped
much - so I hoped the images themselves had stable URLs. The site was
JPL's photojournal, http://photojournal.jpl.nasa.gov/, and the images in
question (available via the search query) are PIA03000, PIA01655,
PIA01297, PIA01651, PIA02556, PIA00829, PIA02590, PIA1656, PIA02864,
PIA02253, and PIA03101. (Why the 'PIA' is necessary, since all images appear
to have them, I don't know.)

Morgan L. Owens
"The best way to see if other planets have fractals is to go and have a look."



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Date: Sat, 14 Jul 2001 23:26:39 -0500
From: "Paul N. Lee" <[e-mail]>
Subject: Re: (fractint) Re: C-FOTD  14-07-01  (Monolith Monsters [5])

Bob Margolis wrote:
>
> "Morgan L. Owens" wrote:
> > http://photojournal-b.jpl.nasa.gov/outdir/PIA03000.10691.jpeg
> > http://photojournal.jpl.nasa.gov/archive/PIA01655.gif
> >
>
> FYI: For each jpeg there was a "File Not Found" message
> when I clicked on them.  Only the two gifs were viewable.
>

After only entering the directory paths without the file name:

    http://photojournal-a.jpl.nasa.gov/outdir/
    http://photojournal-b.jpl.nasa.gov/outdir/

These were the only images available for "a":

    PIA00403.19219.jpeg    14-Jul-01 21:16    68k
    PIA00558.19035.jpeg    14-Jul-01 21:07    28k
    PIA00567.19064.jpeg    14-Jul-01 21:09    59k
    PIA00567.19175.jpeg    14-Jul-01 21:14    59k
    PIA01301.19419.jpeg    14-Jul-01 21:20   130k
    PIA01309.19209.jpeg    14-Jul-01 21:15   148k
    PIA02879.19085.jpeg    14-Jul-01 21:10    18k
    PIA02879.19125.jpeg    14-Jul-01 21:11    18k
    PIA03101.19168.jpeg    14-Jul-01 21:13   260k
    PIA03149.19114.jpeg    14-Jul-01 21:10    52k
    PIA03150.19023.jpeg    14-Jul-01 21:06    42k

and for "b":

    PIA00558.23523.jpeg    14-Jul-01 21:18    28k
    PIA00567.23453.jpeg    14-Jul-01 21:14    59k
    PIA01081.23629.jpeg    14-Jul-01 21:24    42k
    PIA01669.23507.jpeg    14-Jul-01 21:16    49k
    PIA02099.23485.jpeg    14-Jul-01 21:15    80k
    PIA02099.23568.jpeg    14-Jul-01 21:21    80k
    PIA02314.23348.jpeg    14-Jul-01 21:11    91k
    PIA02879.23372.jpeg    14-Jul-01 21:12    41k
    PIA02879.23384.jpeg    14-Jul-01 21:12    18k
    PIA02879.23406.jpeg    14-Jul-01 21:13    41k
    PIA02879.23448.jpeg    14-Jul-01 21:14    18k
    PIA03000.23426.jpeg    14-Jul-01 21:13    37k
    PIA03223.23578.jpeg    14-Jul-01 21:21    93k
    PIA03451.23279.jpeg    14-Jul-01 21:10    42k

Sincerely,
P.N.L.
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Date: Sat, 14 Jul 2001 23:32:32 -0500
From: "Paul N. Lee" <[e-mail]>
Subject: Re: (fractint) Re: C-FOTD  14-07-01  (Monolith Monsters [5])

Morgan L. Owens wrote:
>
> Well, the proper pages all had the same URL,
> so it wouldn't have helped much - so I hoped
> the images themselves had stable URLs.

Apparently these images are rotated fairly often, based upon the date
and timestamp for the actual files in those directories.

P.N.L.
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------------------------------

Date: Sun, 15 Jul 2001 17:15:21 +1200
From: "Morgan L. Owens" <[e-mail]>
Subject: Re: (fractint) Re: C-FOTD  14-07-01  (Monolith Monsters [5])

At 16:32 15/07/2001, Paul N. Lee wrote:
>Morgan L. Owens wrote:
> >
> > Well, the proper pages all had the same URL,
> > so it wouldn't have helped much - so I hoped
> > the images themselves had stable URLs.
>
>Apparently these images are rotated fairly often, based upon the date
>and timestamp for the actual files in those directories.

By guess is that they're cached as files for each request, to cut down on
blob queries to the database.

Morgan L. Owens
"Maybe if I faked the form fields in a querystring..."


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------------------------------

Date: Sun, 15 Jul 2001 11:06:24 EDT
From: [e-mail]
Subject: (fractint) C-FOTD  15-07-01  (Dry Lake [3])

Classic FOTD -- July 15, 2001 (Rating 3)

Fractal visionaries and enthusiasts:

The word has come in to Fractal Central that fractals *might*
exist on other planets.  The question now becomes whether a
fractal really exists if no intelligent life is there to be
aware of it.  Perhaps a better way of stating the question is to
ask whether fractals existed on earth 2000 years ago, before we
knew of them.  And this is simply another form of the old philo-
sophical question of whether we create reality by considering
certain things of which we are aware to be real, or whether the
things would be real even if no intelligent life existed to be
aware of them and declare them real.

Today's modest offering most certainly is real.  (I think.)  It
is an example of a very common fractal feature I call a 'dry
lake'.  All too often while tracking down a midget, I come upon
features of a class I call 'dry lakes'.  One of these dry lakes
exists at the exact center of today's image, and is the reason I
named the picture "Dry Lake".

A dry lake is surrounded by the symmetrical type of features
that point the way to a midget, but before the midget is
reached, the basin bottoms out in a saddle-shaped surface.
These saddle surfaces indicate a failed search, and as soon as I
see one, I usually turn away to search elsewhere.

I consider these dry lakes to be near misses.  A midget does
exist nearby in the surrounding Julibrot, but the slice on the
screen misses the midget by a narrow margin.  Still, if the
slice comes close enough to the actual midget, some of these dry
lakes display nearly perfect surrounding features.  In these
cases, the presence or absence of a central midget makes little
difference.  But I sometimes wonder whether a program designed
to automatically track down midgets would be fooled by these dry
lakes.

Today's image, which misses the midget by a rather wide margin,
shows a relatively imperfect dry lake, with symmetry that is
unbalanced and does not go beyond the stage of 2.  Because of
its imperfection, I rated the image a below-average 3.

With a render time of 15 minutes, the parameter file tries one's
patience.  A download of the GIF image is the way to see today's
FOTD.  That download will soon be available at:

          <http://home.att.net/~Paul.N.Lee/FotD/FotD.html>

and at:

          <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html>

The fractal weather today here at Fractal Central may safely be
passed over.  But for those who have an interest in such
unimportant things, it was another perfect day, with blue skies
and a temperature of 84F (29C).  The cats were happy all day.

It's now time to do other things.  So until next time, take
care, and we have the fractal saddle, all we need is the fractal
horse.


Jim Muth
[e-mail]


START 20.0 PAR-FORMULA FILE================================

Dry_Lake           { ; time=0:14:59.68--SF5 on a P200
  reset=2001 type=formula formulafile=allinone.frm
  formulaname=MandelbrotMix4 function=recip passes=1
  center-mag=+0.63371185168602/+1.1142664608147/1.59\
  2733e+007/1/67.5 params=10/-1.333/1/-13.33/-2/300
  float=y maxiter=1200 inside=0 logmap=246
  colors=000C0AD0AD0AE0AE0AF0AF0AG0AG0AG0AG0AH0AH0AH\
  0AH0AI0AI0AI0AI0AJ0AJ0AJ0AJ0AK0AK0AK0AK0AL0AL0AL0A\
  L0AM0BM0BM09M0CN0CN0CN0CN0CO0CO0BO0BO0BP0BP0BP1BP3\
  CQ4BQ4BQ4BQ6BR6BR69R69R89S89S89S89SA7TA7TA7TA7TC7U\
  C7UC5UC5UD5UD5UD5UD5UF3UF3UF3UF3UH3UH3UH2UH2UI2UI2\
  UI2UI2VK0VK0VK0WK0WM0WM0WM0YM0YO0YO0_O0_O0_P0`P0`P\
  0`R0bR0bR0bR0bT0dT0dT0dT0fU0fU0fU0gU0gW0gW0iW0iW0i\
  Y0iY0kY0kY0k_0l_0l_0l_0na0na0na0pa0pb0pb0pb0rb0rd0\
  rd0td0td0tf0uf0uf0uf0wg0wg0wg0wi0wg0wg0wg0wg0wg0wg\
  0wg0wf0wf0wV0wf0zY0wf0za0wf0wd2wd3wd5wd7wd7wd9wdBw\
  dCwbEwbEwbGwbHwbJwbLwbLwaMwaOwaQwaRwaRwaTwaVxaXx_Z\
  x_Zx__y_ay_cy_dy_dz_fzYhzYjzYkzYkzYmzYozYpzWrzWrzW\
  tzWvzWxzWyzWyzWzzUzzUzzUzyUzxUzwUzwUzyWzwUzwUzuUzu\
  UzuUztUztUztTzrTzrTzrTzpTzpTzpTznTznRznRzlRzlRzlRz\
  nUzpWzrYztWzuWzwWzwWzwUzwUzwUzwUzwTzwTzwTzwTzwRzwR\
  zwRzwRzwPzwPzwPzwPzwOzwOz
  }

frm:MandelbrotMix4 {; Jim Muth
a=real(p1), b=imag(p1), d=real(p2), f=imag(p2),
g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j,
k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel):
z=k*((a*(z^b))+(d*(z^f)))+c,
|z| < l
}

END 20.0 PAR-FORMULA FILE==================================

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------------------------------

Date: Sun, 15 Jul 2001 11:11:02 -0300
From: "Ricardo M. Forno" <[e-mail]>
Subject: (fractint) Another use for fractint

Some time ago, I discovered another practical use for fractint.
I created a batch file f.bat which simply called fractint.The f.bat file was
under the /bat directory, which I included in the path.
Then, when some program under DOS lets the screen in an abnormal state, for
example with different colors or letter size, I simply type f and when
fractint appears I press Esc. This easily returns the screen to its normal
state.


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------------------------------

Date: Mon, 16 Jul 2001 11:05:11 -0400 (EDT)
From: Jim Muth <[e-mail]>
Subject: (fractint) C-FOTD  16-07-01  (Corona [7])

Classic FOTD -- July 16, 2001 (Rating 7)

Fractal visionaries and enthusiasts:

With today's image, we rise out of yesterday's abyss.  Today's
image resembles a something -- I am not sure what -- but while
studying it, searching for a name, I had the impression of the
sun during a total eclipse, with the arcing colors surrounding
the central circle being the coronal loops.  True, the central
circle with its horizontal stripes bears little resemblance to
the black disk of the new moon, but with a bit of imagination,
the resemblance to the eclipsed sun with its coronal streamers
is there.

Yes, I have noticed the area at the bottom of the striped
circle, which looks suspiciously like a midget.  Since July is
quadratic midgetless month, this object, if it is in fact a
midget, has no right to be there.  But it is so unobtrusive that
even if it is a midget, it does not violate my pledge to have no
more midgets in July.  Perhaps I'll investigate this area after
the end of this month, when quadratic midgets will once again be
permissible.

The formula behind today's image is number 13 in my series of 14
MandNewt formulae.  Some of the image is outside material, some
is inside colored by the bof60 option, and some is open inside,
which should be colored by the inside fill, but for some reason
is not.  Turning on the logmap adds color to the black areas of
today's image, but I like it better the way it is.

After a short period of pondering, I named today's FOTD
"Corona", and rated it at a 7.  And seven minutes are required
to render the image from the parameter file.  The image will
also soon be available in GIF form on the Web at:

          <http://home.att.net/~Paul.N.Lee/FotD/FotD.html>

and at:

          <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html>

The fractal weather today was once again perfect, with blue
skies, puffy white clouds, and a cat-pleasing, wading-pool-
splashing temperature of 86F (30C).

Unfortunately, we've now come to the end of another FOTD, but
additional FOTD's are lined up into the indefinite future, and
the next one will appear within 24 hours.  Until that golden
moment arrives, take care, and fractals are as real as we
consider them to be.


Jim Muth
[e-mail]


START 20.0 PAR-FORMULA FILE================================

Corona             { ; time=0:06:56.06--SF5 on a P200
  reset=2001 type=formula formulafile=allinone.frm
  formulaname=MandNewt13 passes=1
  center-mag=-44.5237/0/0.01512924/1/-90
  params=-1.413/4.324/4.275/-2.475/1.797/4.89
  float=y maxiter=140 inside=bof60 periodicity=0
  colors=000GluGkuHjtIitIhsJgrKfrLeqLdqMcpNboNaoO`nP\
  _nQZmQYlRXlSWkSVkQWjPWiNWhMWgKWgJWfIWeGWdFWcDWcCWb\
  AW`9W`8W`CWZGWYKWWOWVSWUWWS`VRcUQhSOlQNpNMsKKvGJxE\
  IyHJyJJyMJxOJxQJwSJwUJvWJvYJu_JuaJtdJtgJsjJsmJrpJu\
  qIrqJrpKqoKqmLpkMpjMphNofNoeOncPnaPm`QmZRmXRlWSlUS\
  kSTkRUjPUjNVjMVhNWgNXfNYeNZdN_bO_aO``Oa_ObZOcXPcWP\
  dVPeUPfTPgSPgQQhPQiOQjNQkMQlKRlJRmIRnHRoGRpESpDSqC\
  SrBSsASt9StARtAQtAPtAOtBNtBMtBLtBKtCJtCItCHtCHtFJq\
  IKnKLlNMiPNfSOdUPaXQZZRXaSUdSMcTScUXcVabWfbXkbYpaZ\
  ua_za_zbZzcYzcYzdXzeXzfWzfWzgVzhUziUziTzjTzkSzjRzk\
  SzlSzmSzmSznSzoSzpSzpSzqSxrSwrSusSstSruSpuSnvSmwSk\
  xSixShySfzSdzR`zSazSbzScySdwSdvSeuSfsSgrTgpThoTimT\
  jlTkkTkiTlDdzDdzCezBfzBgzAhz9iz9jz8kz6jz8kz9kzAlzB\
  lzCmzDmzEnzGnzHozIozJpzKpzLqzMqzNqzPrzQrzRszSszTtz\
  UtzVuzXuzYvzZvz_wz`wzaxzbxzbzzcxzdwzdvyeuyftxfswgr\
  whqvhpuinujmtjlskksljrliq
  }

frm:MandNewt13 {; Jim Muth
z=g=pixel, a=real(p1), b=imag(p1), c=real(p2),
d=imag(p2), e=real(p3), f=imag(p3):
h=z^a+(g-b)*z-f
j=c*z^d+g
z=z-e*h/j,
0.000000000000000000000000000001 <= |h|
}

END 20.0 PAR-FORMULA FILE==================================


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End of fractint-digest V1 #582
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