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fractint-digest       Thursday, January 22 1998       Volume 01 : Number 087




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

Date: Thu, 22 Jan 1998 00:40:24 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) More problems between DOS and W95...

The magic words are: "textsafe=save".
Put those in your sstools.ini and you never need worry again.


- --
    .*.  Friendship, companionship, love, and having fun are the reasons for
 -()  <  life. All else; sex, money, fame, etc.; are just to get/express these.
    `*'  Send any and all mail with attachments to the hotmail address please.
Paul Derbyshire [e-mail] [e-mail]

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

Date: Sun, 18 Jan 1998 23:00:38 -0500 (EST)
From: [e-mail] (Michael Traynor)
Subject: Re: (fractint) On topic please

>In a message dated 98-01-18 14:29:06 EST, [e-mail] writes:
>
><< Please make sure before posting that your message is of GENERAL list
> interest, on topic, and not so personal it is only of interest to
> the person you are answering. >>

Perhaps the policy should be that a par is the price of an off-topic post
(though I suppose you could say it then becomes on-topic, which is OK).

Ooops!

SpaceWalk          { ; Mike Traynor
                     ; [e-mail]
  reset=300 type=mandel
  corners=-0.754939999014/-0.754867005583/-0.0492465085672/-0.04919176\
  34935 params=0.25/0.25 float=y maxiter=1000
  colors=000000Hga<4>VTkTSg<15>k42<3>z10<10>wz0<6>CQe<6>Pun<7>Hzz<7>bU\
  sePrePqfQp<2>hRliSkkTi<4>rXbtY`tZa<3>xfiucf<3>yq1<15>yT1zR0xP0<7>h50\
  <4>QdC<9>Rn3<4>Y0W<12>z2m<19>NTiLVhKUkKTnJSqIRu<3>OLgPJdSJa<8>zB9<6>\
  zz8<16>lXdkVfmUj<4>zPzPbF<9>DvUzzE<2>zlEzgDzcDzZCzUC<3>zAA<4>IUZ<3>B\
  mn
  }


- --
Mike Traynor

People who like this sort of thing will find this the sort of thing they like.
    Abraham Lincoln

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Date: Wed, 21 Jan 1998 21:48:40 -0800
From: kathy roth <[e-mail]>
Subject: (fractint) double spaced pars (was Lee's Truecolor Fractals)

Gedeon wrote regarding double spaced messages:
>>That is odd indeed! My first impulse was to say that
none worked for me......

I think a lot of the pars worked but none of
the formulas worked.


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Date: Thu, 22 Jan 1998 00:45:43 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) Faster formulae - pointers for optimisation requested.

>I already try to precompute as much as possible before entering the loop.
>Another suggested extension to formulae: a section which is run through
>once _per image_, where needed constants can be set up in advance, rather
>than redoing them every orbit. It's a small thing but it would save
>millions of ops. Or is this carried through by the parser already?

That would be very nice. I thought of this myself after dealing with some
tricky types with only a bunch of variable finite attractors. It'd be nice
to detect these once per image by running the critical points through
maxit iterations, then recording the results in some variables, then using
|z-a1|<micro type expressions in the iteration loop.


- --
    .*.  Friendship, companionship, love, and having fun are the reasons for
 -()  <  life. All else; sex, money, fame, etc.; are just to get/express these.
    `*'  Send any and all mail with attachments to the hotmail address please.
Paul Derbyshire [e-mail] [e-mail]

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Date: Sun, 18 Jan 1998 22:00:17 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Next version of DEEPER now avail.

Nature...

I visited your page....and I LOVED your Ode to Fractint.....(and the Nazi
Fractal, of course). Your poem said how I feel when I make fractals.  My
first really good Fractint fractal was a cross.... it materialized out of
the fractal void one week before easter last year.......scary.....and I've
been fractaling ever since ....just in case.

Here's something that appeared today....I always wonder where these things
come from

crystal_sphere     { ; wizzle 1998 with newish color map
  reset=1960 type=formula formulafile=*.frm formulaname=clips
  center-mag=0/-0.183875/0.4536489/1/90 float=y maxiter=256 bailout=25
  inside=bof60 outside=atan logmap=yes symmetry=xaxis periodicity=10
  colors=0001A7<23>Amc<25>255143122000000000000000<17>PjqRmtSpwUszTqw<16>2\
  34000000<4>000000001102<40>b0xc0zb0y<32>202000001<27>JGTKHUKHT<27>111000\
  000000<3>000011032<2>186
  }

clips (XAXIS) {
   ; A rather bizzare varient made with a sign change.
  z = pixel, zp = (0,0):
  temp = z
  z = -(z^.5) - zp
  zp = temp, |zp| <= 4
  ;SOURCE: noel.frm
}

I'm up to "c" in those never-ending formula files and I just noticed this
is another of Noel's great formulas. Thanks Noel!!!

Angela

At 10:45 PM 1/18/98 EST, you wrote:
>In a message dated 98-01-18 21:21:47 EST, [e-mail] writes:
>
><< P.s., I don't think that finding a fractal which resembles a Nazi symbol
> necessarily means that the finder practices or subscribes to Nazi-oriented
>acts
> or philosophies.  Same goes for users of Microsoft products, I hope...! :)
>  >>


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

Date: Sun, 18 Jan 1998 23:16:16 -0600
From: "Tim Wegner" <[e-mail]>
Subject: Re: (fractint) simplgif update

Guy,

> Not knowing if I'm able to reach you at @phoenix.net, I send this .zip to
> @xmission.com...

I can receive your mail, I just can't answer you directly. So you can
email attachments to me. Please don't post any messages with
attachments tgo the list.

Your previous example was a genuine bug in simplgfif. This time it
was the *decoder*. The no bugs have yet been discovered in the
encoder. At the moment I don't need mopre tests of simplgif. I will
make a new version with a new decoder. I'll use the same decoder that
Fractint uses.

Here's an interesting note. We have eliminated the 2048 in the
developer's version of fractint. Fractint can now do simplgif's job!
You just make an appropriate diskvideo mode, load the MIG, and save.
Of course with the developer's version, you can make a 4000x3000
pixel image directly, so you don't need the GIF approach.

One advantage of Fractint over simplgif is that it can use extended
memory for diskvideo, so the large temporary file is not made.

Tim





>
> There is a strange behaviour of SIMPLGIF.EXE considering the TYPE=JULIBROT..
> The attached files are:
>  * ORIGINAL.PAR is the original.par-file for a 3D-fractal (stereoscopic, for
> crossed-eyes viewing). Let it run to see the "original" image.
>  * the makemig.bat is produced by simplgif.exe (update ver.)
>  * the timtst2.par is also produced by simplgif.exe (update ver.)
> The resulting fractmig.gif works well but dont show the original image and
> the produced image is repeated 5 (x5) times (in this case). I must say that
> this effect is not bad (I must think about what I can do with it), but the
> effect is surely unwanted..
> Will make further tests...
>
>
> Best regards,
>
> Guy
>
>

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

Date: Sun, 18 Jan 1998 22:48:07 -0700 (MST)
From: Kerry Mitchell <[e-mail]>
Subject: (fractint) Explanation, formula, and par file--nearline method (long)

Here is a coloring scheme that I developed.  Included are formula files,
parameters, and a much too long narrative.  The formulas are
annotated to help explain what is happening, and what parameters
should be used.  Happy reading.

- -------------------------------------------------------------------------------
Kerry Mitchell
[e-mail]
- -------------------------------------------------------------------------------

comment { ; narrative copyright Kerry Mitchell

Near to a given line

This method (also called, "nearline") is an extension of Fractint's
bof60 scheme.  In bof60, the question is asked, "how close does the
orbit come to the origin?", or, "what is the minimum magnitude of the
iterate?"  In nearline, we are curious about approach to a given line,
instead of the origin [the origin is the point 0+0i in the complex
plane, also written (0,0)].  The lines in question are all straight and
pass through the origin, so they have the equation, y=kx.  The slope of
the line, k, is equal tan(theta), where theta is the angle of the line
with respect to the x-axis.  Given that tan = sin/cos, an alternative
way to write the equation of the line is to define a distance quantity,
r, and set r equal to 0:

r = cos(theta) * y - sin(theta) * x = 0.

So the basis of this coloring method is, for a given theta, what is the
minimum value of |r|?

Given a minimum value of |r| for the orbit, the formulas plot the results
by taking the log of |r|, and using that as the polar angle of z for the
decomposition coloring.  This has the advantage of being able to handle a
wide range of values without rescaling, and compressing them into a small
variable space.  Decomposition wraps automatically, so no clipping is
encountered if the color overruns the 0 - 255 index range.  And, the log
function is only executed once per orbit, so the time penalty is minimal.

The general nature of this coloring is a series of lines, starting at the
fractal boundary and heading to infinity, asymptotic to the angle theta.
How these lines interact and intersect varies greatly with the choice of
theta.  Specifically, it is not clear what values of theta to choose to
cause the lines to intersect at the origin.  However, the lines can be
chosen in terms of iterations instead of angle.  The first iterate of (0,0)
is simply c, so, from the above equation, we can force the lines to cross
at the origin after 1 iteration by making

r = imag(c) * x - real(c) * y,

and clearly, r will be 0 at the origin at the first iteration.
Similarly, if we define

zero2 = c*c + c
      = the second iterate of (0,0), and

zero3 = zero2*zero2 + c
      = the third iterate of (0,0), then

r = imag(zero2) * x - real(zero2) * y

will cause an intersection at the second iteration, and

r = imag(zero3) * x - real(zero3) * y

will cause an intersection at the third iteration.  These techniques
are employed in nearline01_jul, -02_jul, and -03_jul, respectively.
Such actions are not required for the Mandelbrot variation, since the
origin is a fixed point, and all its iterates are zero.

While initially an external coloring scheme, this method works for
the inside as well.  Fundamentally, there's no difference between the
fractal interior and exterior with this method, so the formulas force
all iterations to escape, allowing interior points to be rendered via
decomposition, instead of relying on "inside=zmag".

}

julia-sample       { ; copyright Kerry Mitchell
                     ; demonstrates use of nearline series of formulas
  reset=1960 type=formula formulafile=fractint.frm
  formulaname=nearline01_jul passes=1 center-mag=0/0/0.8/1/-14
  params=-0.125/0.649519052838/1000000/0 float=y maxiter=256 inside=0
  decomp=256 periodicity=0 cyclerange=0/255
  colors=000<61>y99zAAzAAzBB<61>zzzzzzzyz<60>i1ih0hh0hg0g<61>000
  }

mandelbrot-sample  { ; copyright Kerry Mitchell
                     ; demonstrates use of nearline series of formulas
  reset=1960 type=formula formulafile=fractint.frm
  formulaname=nearline-theta_man passes=1
  center-mag=-1.74757631770168900/+0.01796337199985331/465838.\
  7/1/-84.5 params=1000000/120 float=y maxiter=500 inside=0
  colors=F0K<60>T0bU0cU0cV1cV2d<60>zzzzzzzzy<60>zz1zz0zy0yx0\
  <58>G2JF0KF0KF0KF0K cyclerange=0/255 periodicity=0 decomp=256
  }

frm:nearline-theta_jul { ; Kerry Mitchell
        ;
        ; color Julia sets with nearest approach to a given line
        ; line through origin has angle theta to x-axis
        ;
        ; use outside=iter, decomp=256
        ; p1 = Julia parameter
        ; real(p2) = bailout (large--try 1e12)
        ; imag(p2) = angle of line, in degrees (try 45)
        ; zc is the variable used for iteration, z for coloring
        ;
        zc=pixel, c=p1, maxr=real(p2), minr=maxr, iter=1
        theta=imag(p2)*pi/180, ct=cos(theta), st=sin(theta):
        ;
        ; iteration
        ;   find distance to line, r
        ;   if r < minimum, update minimum to r
        ;
        iter=iter+1, zc=sqr(zc)+c, rzc=|zc|
        r=|ct*imag(zc)-st*real(zc)|
        if (r<minr)
          minr=r
          end if
        ;
        ; bailout--take log of minimum distance as decomp angle
        ;
        if ((rzc>maxr)||(iter==maxit))
          iter=-1
          angle=log(minr)
          z=cos(angle)+flip(sin(angle))
          end if
        iter>0
        }

frm:nearline01_jul { ; Kerry Mitchell
        ;
        ; color Julia sets with nearest approach to a given line
        ; line given by parameter c (first iterate of 0)
        ; so color lines pass through 0 on first iteration
        ;
        ; use outside=iter, decomp=256
        ; p1 = Julia parameter
        ; real(p2) = bailout (large--try 1e12)
        ; zc is the variable used for iteration, z for coloring
        ;
        zc=pixel, c=p1, maxr=real(p2), minr=maxr
        ct=imag(c), st=real(c), iter=1:
        ;
        ; iteration
        ;   find distance to line, r
        ;   if r < minimum, update minimum to r
        ;
        iter=iter+1, zc=sqr(zc)+c, rzc=|zc|
        r=|ct*real(zc)-st*imag(zc)|
        if (r<minr)
          minr=r
          end if
        ;
        ; bailout--take log of minimum distance as decomp angle
        ;
        if ((rzc>maxr)||(iter==maxit))
          iter=-1
          angle=log(minr)
          z=cos(angle)+flip(sin(angle))
          end if
        iter>0
        }

frm:nearline02_jul { ; Kerry Mitchell
        ;
        ; color Julia sets with nearest approach to a given line
        ; line given by sqr(c)+c (second iterate of 0)
        ; so color lines pass through 0 on second iteration
        ;
        ; use outside=iter, decomp=256
        ; p1 = Julia parameter
        ; real(p2) = bailout (large--try 1e12)
        ; zc is the variable used for iteration, z for coloring
        ;
        zc=pixel, c=p1, maxr=real(p2), minr=maxr
        zero2=sqr(c)+c, ct=imag(zero2), st=real(zero2), iter=1:
        ;
        ; iteration
        ;   find distance to line, r
        ;   if r < minimum, update minimum to r
        ;
        iter=iter+1, zc=sqr(zc)+c, rzc=|zc|
        r=|ct*real(zc)-st*imag(zc)|
        if (r<minr)
          minr=r
          end if
        ;
        ; bailout--take log of minimum distance as decomp angle
        ;
        if ((rzc>maxr)||(iter==maxit))
          iter=-1
          angle=log(minr)
          z=cos(angle)+flip(sin(angle))
          end if
        iter>0
        }

frm:nearline03_jul { ; Kerry Mitchell
        ;
        ; color Julia sets with nearest approach to a given line
        ; line given by sqr(sqr(c)+c)+c (third iterate of 0)
        ; so color lines pass through 0 on third iteration
        ;
        ; use outside=iter, decomp=256
        ; p1 = Julia parameter
        ; real(p2) = bailout (large--try 1e12)
        ; zc is the variable used for iteration, z for coloring
        ;
        zc=pixel, c=p1, maxr=real(p2), minr=maxr, iter=1
        zero3=c, zero3=sqr(zero3)+c, zero3=sqr(zero3)+c
        ct=imag(zero3), st=real(zero3):
        ;
        ; iteration
        ;   find distance to line, r
        ;   if r < minimum, update minimum to r
        ;
        iter=iter+1, zc=sqr(zc)+c, rzc=|zc|
        r=|ct*real(zc)-st*imag(zc)|
        if (r<minr)
          minr=r
          end if
        ;
        ; bailout--take log of minimum distance as decomp angle
        ;
        if ((rzc>maxr)||(iter==maxit))
          iter=-1
          angle=log(minr)
          z=cos(angle)+flip(sin(angle))
          end if
        iter>0
        }

frm:nearline-theta_man { ; Kerry Mitchell
        ;
        ; color Mandelbrot set with nearest approach to a given line
        ; line through origin has angle theta to x-axis
        ;
        ; use outside=iter, decomp=256
        ; real(p1) = bailout (large--try 1e12)
        ; imag(p1) = angle of line, in degrees (try 45)
        ; zc is the variable used for iteration, z for coloring
        ;
        zc=0, c=pixel, maxr=real(p1), minr=maxr, iter=1
        theta=imag(p1)*pi/180, ct=cos(theta), st=sin(theta):
        ;
        ; iteration
        ;   find distance to line, r
        ;   if r < minimum, update minimum to r
        ;
        iter=iter+1, zc=sqr(zc)+c, rzc=|zc|
        r=|ct*imag(zc)-st*real(zc)|
        if (r<minr)
          minr=r
          end if
        ;
        ; bailout--take log of minimum distance as decomp angle
        ;
        if ((rzc>maxr)||(iter==maxit))
          iter=-1
          angle=log(minr)
          z=cos(angle)+flip(sin(angle))
          end if
        iter>0
        }



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

Date: Thu, 22 Jan 1998 01:28:46 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) On topic please

>  reset=300 type=mandel
>  corners=-0.754939999014/-0.754867005583/-0.0492465085672/-0.04919176\
>  34935 params=0.25/0.25 float=y maxiter=1000

What the hell... version 3?!?


- --
    .*.  Friendship, companionship, love, and having fun are the reasons for
 -()  <  life. All else; sex, money, fame, etc.; are just to get/express these.
    `*'  Send any and all mail with attachments to the hotmail address please.
Paul Derbyshire [e-mail] [e-mail]

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Date: Thu, 22 Jan 1998 19:51:30 +1300
From: "Morgan L. Owens" <[e-mail]>
Subject: Re: (fractint) Herman rings caught at last - but where?

At 00:20 22/01/98 -0500, Paul Derbyshire wrote:
>
>... I tried the more generic
>subject "Complex mapping" which pointed me to an obscure Springer-Verlag
>book a single copy of which was buried in the basement. When I went down
>there, I eventually managed to find the book. (If you thought the Dewey
>decimal system was bad, the crazy system Carleton uses is its square; not
>only digits, but letters, digits, and more decimal digits. This one was
>QA337.5 C37.)
>
Hmm... Let's see. If Carleton uses a system similar to Auckland University
the 337.5 is the Dewey classification (of course), 'C' is the initial of
the author, and the "37" is just there to make the entry unique. The QA has
me stumped, though. Is there more than one library on campus?

But what was the TITLE?? For that matter all I know of the author is that
the name begins with 'C'! From the hints about the layout of the index, it
sounds interesting.

To make this on-topic: what's needed is a way to display the computed
orbits _alone_, so that one doesn't have to sit with a finger hovering over
the 'O' key. And do this with any formula. I'm talking about a hybrid of
the formula type and the Mandelcloud (or dynamic) type.



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Date: Mon, 19 Jan 1998 03:23:25 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: (fractint) Resolution

It seems to be that a fractal image at 300dpi printed on an 8+1/2x11 sheet
of paper would be 2550 by 3300 at maximal size.

Because of this, I usually only use the D&C stuff to generate a 3200x2400
image in four 1600x1200 parts.


- --
    .*.  Friendship, companionship, love, and having fun are the reasons for
 -()  <  life. All else; sex, money, fame, etc.; are just to get/express these.
    `*'  Send any and all mail with attachments to the hotmail address please.
Paul Derbyshire [e-mail] [e-mail]

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Date: Thu, 22 Jan 1998 09:48:23 -0600
From: [e-mail] (Raymond Rogers)
Subject: RE: (fractint) Lee's Truecolor PNG site

I'm running IE4.01 and it does support PNG intrinsically.

Raymond

- -----Original Message-----
From: [e-mail]
[mailto:[e-mail]]On Behalf Of Tim Wegner
Sent: Tuesday, January 20, 1998 9:25 PM
To: [e-mail]
Subject: Re: (fractint) Lee's Truecolor PNG site


Paul wrote:

> PNG Live(tm) is a plugin for Netscape Navigator and Microsoft Internet
> Explorer that allows you to see PNG (Portable Network Graphics) images
> directly in your web browser.

True, but the latest beta versions of both Netscape and Internet
Explorer support PNG instrinsically. For example, I am using Netscape
4.04, which I can verify does support PNG.

Tim


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Date: Thu, 22 Jan 1998 17:39:33 +1
From: "J.P. Louvet" <[e-mail]>
Subject: Re: (fractint) Lee's Truecolor PNG site

le 20 Jan 98 a 21:25, Tim Wegner ecrivait (Tim Wegner wrote) :

> True, but the latest beta versions of both Netscape and Internet
> Explorer support PNG instrinsically. For example, I am using Netscape
> 4.04, which I can verify does support PNG.
You are very lucky because the latest French version of Explorer
(downloaded yesterday) _does not_ support PNG : I am asked wether I will
record the file, wether I want to open it (with the defaut program I use
to see PNG). I know that France is a small country far from US but what
can say some of you dwelling in Quebec ?

Jean-Pierre louvet : [e-mail]
Fractal album :
http://graffiti.cribx1.u-bordeaux.fr/MAPBX/louvet/jpl0.html

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Date: Thu, 22 Jan 1998 13:24:28 EST
From: MAksoy <[e-mail]>
Subject: (fractint) A PAR that keeps perfect time

Announcing the Fractal Watch from Fractint ... a timepiece of beauty in an age
of chaos.   And guaranteed for 50 million color cycles!


fractal_wristwatch { ; ... a timepiece of beauty in an age of chaos...
  ;colorcycle to see it in action!
  ;by Mark Aksoy, [e-mail], 1998.
  reset=1960 type=manlam(fn||fn) function=conj/cos
  center-mag=-3.56875614001061400/+1.08110566967974200/6.475259e+007/1/-77\
  .5 params=0/0/10 float=y inside=zmag outside=summ decomp=256
  colors=5oc<24>1AJ08I08I<4>07F<12>paa<2>dUU`RRZPP<9>F55D33D00<2>A00<15>eX\
  0gZ0ja0mc0<3>wk0<3>mc1kb1i`2f_3<16>3AH08I08I<19>964964A74<5>C92D92E93<28\
  >n`_paapaa<28>keBjfAlhA<6>zuD<27>Bm`9la8nc<5>5zk5xi5vg5te<2>5oc
  }

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Date: Thu, 22 Jan 1998 18:53:31 -0000
From: "Bagpuss" <[e-mail]>
Subject: (fractint) Offline HTML Fractal Gallery

Hi all,

    I have now finished the design of the OFFLINE HTML
FRACTAL GALLERY.  This is a project I thought of during the
contest, and was inspired by the offline viewer used during
the contest.

    The images will come as a PAR file...with a batch file
to generate them in fractint.

    I propose to allow anybody who wishes, to have up to 5
images in the gallery, all contributors will have a seperate
page with thumbnails, and these thumbs will be linked to
full size images.  I would ask that you give the images
meaninful names (ie NOT dmx_04_12a).  Please save the pars
with all colour info (not a link to a map) and give some
idea of the time taken to render (please avoid images that
take days).

    Anybody who is interested in having their images
included should send an Email to me
        [e-mail]
and not the list.  Preferably put all the pars into one file
and send it as an attachment, or if you can't manage
attachments (some people can't) placing them in the body of
the message will be fine.

I hope to have the first version available by Sunday, and
can be obtained by following the link for OFFLINE GALLERY at
my website.
    http://ireland.iol.ie/~bagpuss

    It will be available as a single ZIP file, and because
the images are rendered offline it will hopefully be fairly
small.  Anyone who does not have Web access can email me and
I will send the file to them as an attachment.


        Stephen



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Date: Thu, 22 Jan 1998 12:44:44 -0800
From: "Jay Hill"<[e-mail]>
Subject: (fractint) Fractal of the Night, 21 Jan 1998 (Starfish)

F.O.T.N. (Fractal of the Night) 21 Jan 1998 (Starfish)

And now presenting a first for Dr. J, the mad scientist.
Tonight, shocked by what he saw in his fractal mirror
last night (Big Fatso)

http://home.san.rr.com/jayrhill/FotN/FotN20.html

he decided to go for an evening walk down to the beach.
He soon arrived at the very edge of fractal land, where
the solid features become fractal dust or sand. Even in
the fading light, he thought for sure he saw something
interesting. It was so small he had to get out his pocket
Fractoscope(tm), a Fractint Model 19.6, to see it. Carefully
picking it up, he took it back to the lab for a better
look. Ah, a baby starfish!  He knew they were small,
but this one was less than a micron across.  You can see
its picture, shown as he saw it, by dialing in the
proper settings on your fractoscope.


The formula is Jim Muth's MandelbrotMix which iterates

g(z,c) = a z^b + d z^f + c

Jim was wondering about why certain forms show small MSet
midgets (usuall cardioid and buds) while others show higher
order shapes like z := z^3 +c. The effect comes about when
we use the critical point to start the iteration. That
is, z0 is a zero of this equation dg/dz = 0. For Muth's
formula, critical points are

z0=(-a*b/f/d)^(1/(f-b))

I decided to explore a mix of z^5 and z^6. Each of which
would produce 4 and 5 sided objects respectively.  Mixed
they produce distorted 5 sided objects when z0=0.  The
critical point for this example is -5/6 = -.83333333333.

Making image as a function of z0 show progressively more
distortion as z0 decreases passed -5/6. I pushed it until
the solid objects disappeared suddenly at about -1.42. In
fact tonight's picture is of a starfish near the last small
spec. The value of z0 has been pushed to -1.42237.

Here are the Fractint parameter files.

Enjoy
Jay

A web page will be soon be here (when I get my mouse fixed).
http://home.san.rr.com/jayrhill/FotN/FotN21.html

frm:MandelbrotMix {; Jim Muth
z=p3, c=pixel,
a=real(p1), b=imag(p1), d=real(p2), f=imag(p2):
z=(a*(z^b))+(d*(z^f))+c,
|z| <= 100
}

Starfish  { ; (c) Jay Hill, 1998
            ; 5 points distorted
            ; one of the last midgets as z0 increases passed critical
            ; upper part to the left - Julia like starfish
  reset=1960 type=formula formulafile=mix1.par
  formulaname=mandelbrotmix
  center-mag=-1.4216157031/+0.000455748689/1.098873e+008/1/-20
  params=1/5/1/6/-1.42237/0 float=y maxiter=256000 inside=bof61
  outside=0
  colors=000wc0<17>wM0wK0wK0<89>wZNwZNw\
  ZNwZNwZNwZN<12>w`Lw`Lw_L<121>U00000\
  000
  }



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Date: Mon, 19 Jan 1998 00:34:45 -0800
From: "Jay Hill" <[e-mail]>
Subject: (fractint) Fractal of the Night, Jan 18

Hi Fractintiers,

And now presenting another fractal exploration by Dr. J, the mad
scientist.  See http://home.san.rr.com/jayrhill/Story/Story.html

Tonight, he has ventured into the deep dark fractal jungle, after dark of
course,
and again found more than he expected.

It is called Fractal of the Night (Elephant).

Will Dr. J regret not bringing his rain coat along this time?  Luck for us, he
has
his camera. To see what he has confronted, point your browser to

http://home.san.rr.com/jayrhill//FotN/FotN18.html

Enjoy,

Jay


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Date: Thu, 22 Jan 1998 21:48:01 EST
From: RBarn0001 <[e-mail]>
Subject: Re: (fractint) Fractal music?

In a message dated 98-01-19 20:32:44 EST, you write:

<<  I just had a chance to hear some fractal-generated music. The stuff sounds
 really cool. Kind of mystical. You probably won't hear any CDs of it, but
it's
 cool. Does anyone know if there's any chance that Fractint is going to be
able
 to generate fractal music in the near future? For that matter, does anyone
 know HOW to generate fractal music? >>

There are a number of sites around with fractal music. One of them is my site
(shameless plug! <g>) with some references to how the music was made.
http://members.aol.com/RBarn0001

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Date: Thu, 22 Jan 1998 20:07:41 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Lee's Truecolor PNG site

Jean...

You Frenchmen must be very brave to download and actually use anything
supplied by Microsoft....especially for free.  I've had versions of
Explorer crash my win 95 twice (slow learner here)....but those were betas.
I was visiting some graphics sites today, and I'm not the only person who
believes that "support" for PNG means more than just allowing a plug in.
Most web users don't know from plug in......so if it isn't supplied as part
of the browser they won't be able to access that feature.  I like
PNG.....but I think we need to lobby Netscape to add viewing PNG format as
a "native" capability. I want casual surfers to see fractals as well as
this informed audience and I don't know that I'll have the patience to post
both gifs and pngs at my site.

Angela

At 05:39 PM 1/22/98 +1, you wrote:
>le 20 Jan 98 a 21:25, Tim Wegner ecrivait (Tim Wegner wrote) :
>
>> True, but the latest beta versions of both Netscape and Internet
>> Explorer support PNG instrinsically. For example, I am using Netscape
>> 4.04, which I can verify does support PNG.
>You are very lucky because the latest French version of Explorer
>(downloaded yesterday) _does not_ support PNG : I am asked wether I will
>record the file, wether I want to open it (with the defaut program I use
>to see PNG). I know that France is a small country far from US but what
>can say some of you dwelling in Quebec ?
>
>Jean-Pierre louvet : [e-mail]
>Fractal album :
>http://graffiti.cribx1.u-bordeaux.fr/MAPBX/louvet/jpl0.html
>
>-
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>Post Message:   [e-mail]
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>Unsubscribe:    [e-mail] "unsubscribe fractint"
>
>

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Date: Fri, 23 Jan 1998 00:18:17 -0500
From: "Brian E. Jones" <[e-mail]>
Subject: Re: (fractint) Fractal music?

<<  <<  I just had a chance to hear some fractal-generated music. The stuff
sounds
really cool. Kind of mystical. You probably won't hear any CDs of it, but
it's
cool. Does anyone know if there's any chance that Fractint is going to be
able
to generate fractal music in the near future? For that matter, does anyone
know HOW to generate fractal music? >>  >>

<<  There are a number of sites around with fractal music.  >>

I too have fractal music at my site (another shameless plug!) made with
Robert Greenhouse's Well-Tempered Fractal program.

Brian
http://ourworld.compuserve.com/homepages/Brian_E_Jones



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Date: Fri, 23 Jan 1998 01:02:00 -0500 (EST)
From: Donald Archer <[e-mail]>
Subject: Re: (fractint) Fractal music?

Brian_E_Jones wrote:

>I too have fractal music at my site (another shameless plug!) made with
>Robert Greenhouse's Well-Tempered Fractal program.

>http://ourworld.compuserve.com/homepages/Brian_E_Jones

I listen to all the fractal music I can, and there's none better
than Brian's. (And his fractals are terrific too!)

Don



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Date: Mon, 19 Jan 1998 12:41:28 GMT
From: <[e-mail]>
Subject: (fractint) Colour-map loading problem

Paul Carlson wrote:
> 4) Loading a colormap messes up the current image.
> With my video card, if I've just completed a fractal and
> decide to see how it looks with a different colormap, I press
> the 'E' key and then the 'L' key and select a different colormap.
> All works well except that a short line (looks like a minus sign)
> always appears at the same spot in the image.  I've heard that
> others have had more serious problems trying to do the same
> thing.

I had the same problem with my computer. I eventually traced it to an
on-screen clock TSR which I had in my AUTOEXEC.BAT file - it kept the
current time on screen as long as you were in a text mode. I think it must
have been confusing FRACTINT's clever graphics routines. Anyway, I removed
it and I don't have that problem now. If anyone else out there is having
the same problem but can't stand to live without their clock, a clock which
does work with FRACTINT (at least on my computer) is available from my
website:
<URL: http://homepages.enterprise.net/berrypark/andrew/miscutil.zip >

Andrew Jenner

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End of fractint-digest V1 #87
*****************************