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To: fractint-digest@xmission.com
Subject: fractint Digest V1 #34
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fractint Digest       Thursday, October 16 1997       Volume 01 : Number 034



In this issue:

	Re: (fractint) Re: color maps
	Re: (fractint) RE: Fractint and Java
	Re:  (fractint) Copyright law
	[none]
	[none]
	Re: (fractint) Colors!
	Re: (fractint) Colors!
	Re: (fractint) 80-bit long double floating point
	Re: (fractint) Copyright law
	Re: (fractint) 80-bit long double floating point
	Re: (fractint) Re: color maps
	(fractint) Re: Old user, new problem
	Re: (fractint) 80-bit long double floating point
	Re: (fractint) Copyright law
	(fractint) Re: color maps
	Re: (fractint) Re: color maps
	Re: (fractint) Re: color maps
	Re: (fractint) Copyright law 
	Re: (fractint) Copyright law 
	Re: (fractint) Copyright law 
	Re: (fractint) Copyright law
	(fractint) Julibrot bug report
	(fractint) Re: color maps
	Re: (fractint) Re: color maps 
	(fractint) Fractal Geometry of Nature -- $ 7.95 !

See the end of the digest for information on subscribing to the fractint
or fractint-digest mailing lists and on how to retrieve back issues.

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

Date: Wed, 15 Oct 1997 21:00:49 -0400 (EDT)
From: RBarn0001@aol.com
Subject: Re: (fractint) Re: color maps

<<   There are a couple of utilities I found very useful in making Fractint
 color maps. One is called "Makemap" and is included in the Fracxtr6
 package available at Spanky's.
 http://spanky.triumf.ca/www/fractint/fractint.html >>

<<I also have a Windows color map utility called "Makemap" which has been
available at the Compuserve Fractint site (graphdev) since 1994 and at my web
site (http:/members.aol.com/RBarn0001). Its free, of course.
Ron Barnett >>

Woops! I just went and checked out the Fracxtr6 package that Dan Goldwater
put together. The Makemap in the package is mine <g>. By the way Fracxtr6 is
a great compilation of lots of stuff that anyone starting with Fractint
should have. 
Ron Barnett

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

Date: Wed, 15 Oct 1997 21:08:13 -0700
From: Peter Jakubowicz <pjakub@earthlink.net>
Subject: Re: (fractint) RE: Fractint and Java

Thore Berntsen wrote:
> 
> To those of You who are discussing Java :
> 
> There is a very nice Fractint utillity called Filmer written in Java by
> David Mansfield at :
> 
>  http://ariel.cobite.com/~julian/filmer/
> 
>  You will even find the source of the program at thos site!
> 
> 
> Hi Thore  
> 
I've been trying this URL for three days with no luck, mainly to see 
Java source code for a Fractint utility. Can you or anyone else tell me
what this thing does (it's a stand-alone application, right, not an
applet?) and where else I might be able to find it.
				
					Thanks,
					Peter

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

Date: Wed, 15 Oct 1997 19:13:45 -0700 (PDT)
From: Jon Noring <noring@netcom.com>
Subject: Re:  (fractint) Copyright law

Sunspot activity caused ijk@sas.upenn.edu (Ian J. Kaplan) to utter:

>   Since the topic's been brought up, I'd like to ask: what does 
>everybody think of copyright law as applied to fractals? That is, there 
>exists a sense in which no fractal image is 'written' by anyone (except 
>perhaps the inventor of the original formula) but only discovered inside 
>a mathematical construct. One can envision legions of artists 
>copyrighting every section of the Mandelbrot set at, say, zoom 4x.

I don't feel qualified to give a definitive answer (if there is one) but as
an electronic book publisher, an observer of the alt.religion.scientology
copyright legal battles, etc., I've learned a little about copyright law,
both U.S. and international (e.g., Berne).  But note, IANAL.

To summarize, current philosophy regarding copyright is that when a person
*fixes* in a tangible medium any artistic, literary, or musical work, it
becomes copyrighted automatically -- it is born copyrighted.  The exception to
this is if the person specifically gives the work to the Public Domain, or
that the created work is in essence a whole copy of another copyrighted work.
Note that ideas, databases (though this may change), and processes cannot be
copyrighted -- it is only the tangible expression of those things which are
copyrighted (e.g., the data in a phone book is Public Domain, but wholesale
photocopying of pages from a phone book in excess of Fair Use allowance is a
violation of copyright).

In the case of fractal art, it can get a little fuzzy because of what
constitutes a "copy".  For example, if I take a Fractint parameter file (a
type of "process"?) and duplicate the image, but I alter the color map, is it
a new work, or is it a copy of an existing work (say in excess of Fair Use
allowance)?  Maybe there are legal precedents where the courts have figured
this out, maybe in related cases, but I bet for fractal art it has not been
tested to the point where courts have given precedent-setting decisions.  If
it has we'd be posting that information here.

I would hope that others here who have a better handle of the copyright of
Fractint-derived fractal images can post their thoughts here.  I do recognize
that the Fractint community may have come to a consensus, but note that until
the courts rule definitively, a consensus means nothing legally.

Jon Noring

_____________________________________________________________________________
 OmniMedia Digital Publishing | E-Books: http://www.awa.com/library/omnimedia
 9671 S. 1600 West St.        | Digital/Fractal Art: (coming soon!)
 South Jordan, UT 84095       |
 801-253-4037                 | E-mail: omnimedia@netcom.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


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

Date: Wed, 15 Oct 1997 21:44:38 -0500
From: newstedclan@juno.com
Subject: [none]

Shooooo WEE!!!!
I didn't mean to get such a fuss started. The main reason I asked about
copyrights was to avoid infringement or just plain ol' bad edicate.
There was a par file put out the other day, I can't remember who just
now, but it had a beautiful (really , hats off) par called Vivid. I saved
the color map so I could use it on one of my fractals when I stopped and
thought "Maybe this guy worked on this map?" and I wouldn't want to steal
it! So, I ask my question. 

Is it ok to use some ones .map on my fractal? Should I make sure to give
credit? If these are foolish questions please forgive me. But, I am not
an artist, just an amateur math-guy.

Thanks to everyone who put in a answer.
A bonus Nuker Fractal WITH the par will be coming!!!
Just see if you can stop me! HA HA HA HA HA !!! (maniacal laughter!)

"...God is in the details..." Linus C. Pauling

Nuke

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

Date: Wed, 15 Oct 1997 21:38:17 -0500
From: newstedclan@juno.com
Subject: [none]

Here is another M.L. Newsted Jr. Fractal

.FRM-
CrossN2Eyes (xaxis) { ; M.L. Newsted Jr.
	z = (pixel - 1) / pixel
	c = pixel:

	z = z*z + c
	|z| < 4
	}

.PAR-

Star Algae         { ; M.L. Newsted Jr.
                     ; Green Algae in Blue Water
  reset=1960 type=formula formulafile=nuker.frm
  formulaname=CrossN2Eyes
  center-mag=+0.44344171850000000/-0.32639172650000000/6249.668/0.9997
 
colors=00027g38g39h4Ai4Bi5Ci5Dj6Ek6Fk7Gk7Hl8Im8Jm9Km9LnAMoANoBOoBPpCQqCR\
 
qDSqDTrEUsFVsFWsGXtGYuHXuHYuHZuH_uI`vIawJbwJcwKdx<2>LgyAV0<12>CX2DX2DX2E\
 
X3EX3<18>H`6I`6I`7Ia7Ia8Ja8<4>KcALcALdAMdAMdB<7>PgDPgEPhEPhEQhF<20>WoNXo\
 
NXpNYpNYpO<8>`sR`tRatRatRbtRbtR<2>etRetRftRftRgtR<22>ttRutRutRutQ<5>utNu\
 
sNusNurMuqL<5>unHumHumGumG<9>uhBuhBugBugBugA<7>tc8tc8sb7sa6sa6s`5r`5rZ4r\
  Z4rX4qX4qV2qV2qT2WWWWWWzzz<6>zzzkkkkkkzzz<5>zzz00e10f<4>26g
  }

I know the color isn't that hot, but I'm still experimenting with those.

Hi Thiery, did you get my message?

"...God is in the details..." Linus C. Pauling

Nuke

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

Date: Wed, 15 Oct 1997 21:43:38 -0500
From: newstedclan@juno.com
Subject: Re: (fractint) Colors!

So... if I create a fractal and par I can copyright it?

"...God is in the details..." Linus C. Pauling

Nuke

On Wed, 15 Oct 1997 16:09:58 -0400 Sylvie Gallet
<Sylvie_Gallet@compuserve.com> writes:
>Hi Nuke,
>
>>> Q2. Why did Sylvie put a copyright on the par file posted 
>yesterday?
>>> Isn't Fractint free? I don't see how you could claim it as 
>original.
>>> Sylvie?
>
>  Though the tool I used (Fractint) is free, the pars I posted 
>yesterday
>are my creations (coordinates, coloring schemes, palettes...) and I 
>don't=
>
>put them in the public domain.
>
>        - Sylvie
>
>----------------------------------------------------------------------
>  Sylvie_Gallet@CompuServe.com
>  http://spanky.triumf.ca/www/fractint/sylvie/gallet.html
>  http://ourworld.compuserve.com/homepages/Sylvie_Gallet/homepage.htm
>----------------------------------------------------------------------
>
>------------------------------------------------------------
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>

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

Date: Wed, 15 Oct 1997 23:03:58 -0400
From: "Brock Kevin Nambo" <badger@innocent.com>
Subject: Re: (fractint) Colors!

From: newstedclan@juno.com <newstedclan@juno.com>
Subject: Re: (fractint) Colors!


>So... if I create a fractal and par I can copyright it?


No, because it's already copyrighted.  (Ain't life grand?)  But you can
notify people that it's copyrighted, by using the little notices people put
on their things.  (ya know, some people,...) lol

>>BKNambo "copyright 1997 me"
- --
- -----------------------------------------------------------------
| H     badger@innocent.com (:P McQ)|  UIN: 1936556   ____    __|
|=@==== http://come.to/brocks.place |afw?*********** /_   \  / /|
| H H H "World Domination Through Trivia" -S3Kitties  / /\ \/ / |
| H H H Marcher -- Just my imagination -- Nightwatch /_/  \__/  |
- -----------------------------------------------------------------
Visit the really big monster MSN Trivia Schedule at my webpage!
       http://members.aol.com/brockbadge/sched.html



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

Date: Wed, 15 Oct 1997 22:16:31 -0600
From: "Tim Wegner" <twegner@phoenix.net>
Subject: Re: (fractint) 80-bit long double floating point

Jay wrote:

> This seems to be true for Microsoft compilers, but is incorrect in general.
> Borland C++ compilers have 'long double' which gives you (and
> I copy this from their help screen)

I can't speak for the latest Win95-only Microsoft Visual 
C/C++ compilers, but I can definitively say that the older DOS MS 
C/C++ 7.0 that I use for Fractint DOES support 80 bit long double. 
I'd be very surprized if it turns out to be true that Microsoft has 
*removed* long double support. 

Tim


 

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

Date: Wed, 15 Oct 1997 23:38:54 -0400 (EDT)
From: ijk@sas.upenn.edu (Ian J Kaplan)
Subject: Re: (fractint) Copyright law

Jon Noring wrote:
> 
> Sunspot activity caused ijk@sas.upenn.edu (Ian J. Kaplan) to utter:

no, no, it was the phase of the moon...
[snip me]
[snip you]

[aside- I'm concerned in part about the definition of 'in essence identical'
as applied to fractals... rather vague. Hell, maybe patent law is more 
applicable. 'Spark of genius', as the phrase goes, at least has some 
caselaw defining it.]

> Note that ideas, databases (though this may change), and processes cannot be
> copyrighted -- it is only the tangible expression of those things which are
> copyrighted (e.g., the data in a phone book is Public Domain, but wholesale
> photocopying of pages from a phone book in excess of Fair Use allowance is a
> violation of copyright).
> 

   Right. So-- is the formula and parameter set for a fractal image not 
an idea? if it is an idea, just what is the tangible expression that is 
being copyrighted? if it is a tangible expression, well, gosh, 
"Mandelbrot set corners x1 x2 y1 y2" doesn't quite seem enough to be 
called an expression...

> allowance)?  Maybe there are legal precedents where the courts have figured
> this out, maybe in related cases, but I bet for fractal art it has not been
> tested to the point where courts have given precedent-setting decisions.  If
> it has we'd be posting that information here.

   Mathematical images as copyrighted art have never been the subject of 
real amounts of money, hence no court cases... I suppose I hope they will 
be...

> 
> I would hope that others here who have a better handle of the copyright of
> Fractint-derived fractal images can post their thoughts here.  I do recognize
> that the Fractint community may have come to a consensus, but note that until
> the courts rule definitively, a consensus means nothing legally.
> 

   Oh, of course, it was just my curiosity speaking. Of course, when it 
does come time for a court to rule, one might expect it to take the 
opinions of the population of fractal artists as to what constitutes an 
original work under advisement, and a fair fraction of that community 
does read this listserv... :)


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

Date: Thu, 16 Oct 1997 00:34:04 -0400
From: "Damien M. Jones" <dmj@emi.net>
Subject: Re: (fractint) 80-bit long double floating point

Tim,

 - I can't speak for the latest Win95-only Microsoft Visual 
 - C/C++ compilers, but I can definitively say that the older DOS MS 
 - C/C++ 7.0 that I use for Fractint DOES support 80 bit long double. 
 - I'd be very surprized if it turns out to be true that Microsoft has 
 - *removed* long double support. 

This is indeed the case, at some point along the line Microsoft _removed_
support for 80-bit long doubles from Visual C++ (I think at version 4).  If
you look in the float.h file you will see long double (and all the related
limits) are defined, for anything not defining _M_M68K, as equivalent to
the type double limits.  This means that for 68K Mac compilation, you do
get an 80-bit long double, but for x86, PPC, or Alpha, you only get 64-bit
double.  This is really baffling, since if in even *one* case they support
the 80-bit format, it throws their compatibility argument out the window.

Beats me what the hell they were thinking.

Damien M. Jones  /  temporary sanity designs  /  http://www.icd.com/tsd/
   dmj@icd.com  /  my art gallery: http://www.geocities.com/~fractalus/


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Date: Thu, 16 Oct 1997 01:40:25 -0400 (EDT)
From: RBarn0001@aol.com
Subject: Re: (fractint) Re: color maps

In a message dated 97-10-15 07:31:12 EDT, you write:

<<   There are a couple of utilities I found very useful in making Fractint
 color maps. One is called "Makemap" and is included in the Fracxtr6
 package available at Spanky's.
 http://spanky.triumf.ca/www/fractint/fractint.html >>

I also have a Windows color map utility called "Makemap" which has been
available at the Compuserve Fractint site (graphdev) since 1994 and at my web
site (http:/members.aol.com/RBarn0001). Its free, of course.
Ron Barnett

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Date: Thu, 16 Oct 1997 08:51:34 PDT
From: Nigel Long <N.H.Long@soton.ac.uk>
Subject: (fractint) Re: Old user, new problem

From the originator of this thread....

Many thanks to all those who assisted in resolving this problem. The answer was 
found by changing the order of some of the commands in my SSTOOLS.INI file - 
Fractint seems to dislike some commands in certain orders. Vesadetect had to go 
first or it would not work. (anybody else found this?)

I think we can call this thread closed. Thanks again - Now I can resume my 8 year 
love affair with fractals!

Nigel Long



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Date: Thu, 16 Oct 97 10:19:20 BST
From: r.hopkins@ic.ac.uk
Subject: Re: (fractint) 80-bit long double floating point

OK fair enough.
So 80 bit numbers are acceptable.
Does DJGPP allow them?

I wasn't aware that there was a machine code instruction to copy the
whole of one 80 bit fpu register to memory. They would probably be
quite cumbersome to use, since they would require several 'ordinary'
registers to store outside the fpu. However fractals can use these extra
16 bits of goodness, since the number never needs to leave the FPU during
one iteration (in mandel case anyway), only if you actually wanted to
do anything else with a particular coord, eg plot the real and imag values.
I assume this is a bit more correct than last time...

Hoppy

BTW, A nice colouring method I use for 24 bit colour goes along the lines of:
red = sin (Imag/mag)
green = sin (real/mag)
blue = sin (iter/mag)
This sort of colouring is slower, but can make some really nice patterns.
Try all sort of other combinations, they all look nice

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Date: Thu, 16 Oct 1997 05:47:00 -0700
From: Andrew Schoonmaker <neon@eskimo.com>
Subject: Re: (fractint) Copyright law

At 15:30 10/15/97 -0700, you wrote:
>
>I created giant files with every midget through period 16 (nearly
>65000) and many thousands more through period 64. I viewed
>many of these with Fractint which draws them at a pace of a
>second or each.  It can get hypnotic.  Anyway, I could post them
>and copyright the whole lot!  It is stupid, I agree.  As for copyrighting
>formula - the Mset equation was published in copyright
>articles by Mandelbrot himself. So there we are.

A couple of questions...  One, what do you mean by "period 16" and "period
64"? 

Two, any chance you'd make said files available somewhere? :)

 -Andrew (who figures that while copyrighting an image isn't stupid, if
it's too generic the chance of someone else trying to do the same is really
high)


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Date: Thu, 16 Oct 1997 11:25:12 -0400
From: Gedeon Peteri <gedeon@InfoAve.Net>
Subject: (fractint) Re: color maps

<HTML>

<BLOCKQUOTE TYPE=CITE>
<PRE>I also have a Windows color map utility called "Makemap" which has been
available at the Compuserve Fractint site (graphdev) since 1994 and at
my web
site (<A HREF="http:/members.aol.com/RBarn0001">http:/members.aol.com/RBarn0001</A>). Its free, of course.
Ron Barnett</PRE>
</BLOCKQUOTE>
The "Makemap" utility I referred to as being part of the Fracxtra6 package
<B><I>IS</I></B> yours!&nbsp; (The version I have is 1.1 - 1994.&nbsp;
Do you have an update?) I apologize for not identifying you as its author,
but it is sort of buried there among hundreds of other files and your name
regrettably gets lost and one has to look for it.&nbsp; Incidentally, the
above URL does not work for me: "Netscape is unable to locate the server....."
<BR>Gedeon Peteri</HTML>


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Date: Thu, 16 Oct 1997 12:05:29 -0400 (EDT)
From: RBarn0001@aol.com
Subject: Re: (fractint) Re: color maps

In a message dated 97-10-16 11:31:25 EDT, you write:

<< <BLOCKQUOTE TYPE=CITE>
 I also have a Windows color map utility called "Makemap" which has been
 available at the Compuserve Fractint site (graphdev) since 1994 and at
 my web
 site (<A HREF="http:/members.aol.com/RBarn0001">http:/members.aol.com/RBarn00
01</A>). Its free, of course.
 Ron Barnett
 </BLOCKQUOTE>
 The "Makemap" utility I referred to as being part of the Fracxtra6 package
 IS yours!&nbsp; (The version I have is 1.1 - 1994.&nbsp;
 Do you have an update?) I apologize for not identifying you as its author,
 but it is sort of buried there among hundreds of other files and your name
 regrettably gets lost and one has to look for it.&nbsp; Incidentally, the
 above URL does not work for me: "Netscape is unable to locate the
server....."
 
Gedeon Peteri
  >>

Gedeon,
You are right, it is my "makemap" in Fracxtra6. I downloaded the package to
check it out last night. The address above for my web site is missing a "/"
after "http:". Here is a more complete address, which may help:
http://members.aol.com/RBarn0001/index.htm.
The newest version is 1.2. Someday, if I ever find time, I will make a Win95
version.
Ron Barnett.


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Date: Thu, 16 Oct 1997 12:09:15 -0400 (EDT)
From: RBarn0001@aol.com
Subject: Re: (fractint) Re: color maps

In a message dated 97-10-16 11:31:25 EDT, you write:

<< <BLOCKQUOTE TYPE=CITE>
 I also have a Windows color map utility called "Makemap" which has been
 available at the Compuserve Fractint site (graphdev) since 1994 and at
 my web
 site (<A HREF="http:/members.aol.com/RBarn0001">http:/members.aol.com/RBarn00
01</A>). Its free, of course.
 Ron Barnett
 </BLOCKQUOTE>
 The "Makemap" utility I referred to as being part of the Fracxtra6 package
 IS yours!&nbsp; (The version I have is 1.1 - 1994.&nbsp;
 Do you have an update?) I apologize for not identifying you as its author,
 but it is sort of buried there among hundreds of other files and your name
 regrettably gets lost and one has to look for it.&nbsp; Incidentally, the
 above URL does not work for me: "Netscape is unable to locate the
server....."
 
Gedeon Peteri
  >>

Gedeon,
You are right, it is my "makemap" in Fracxtra6. I downloaded the package to
check it out last night. The address above for my web site is missing a "/"
after "http:". Here is a more complete address, which may help:
http://members.aol.com/RBarn0001/index.htm.
The newest version is 1.2. Someday, if I ever find time, I will make a Win95
version.
Ron Barnett.


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Date: Thu, 16 Oct 1997 10:33:43 -0600
From: Rich Thomson <rthomson@ptc.com>
Subject: Re: (fractint) Copyright law 

My advice to anyone seriously concerned about copyright theft of their
fractal images is to only published them in print.  Don't publish the
FRM file, don't publish the PAR file, don't publish the image --
especially not on your web page!  However, this means that the
audience for your work is severely limited since only those people who
physically walk by the printed works are going to see them.

There are also technologies for adding "digital watermarks" to image
files so that you can prove they violated your copyright.  I haven't
looked into the details of how these work and I've always wondered if
a 2x2 pixel gaussian blur filter over the image wouldn't remove
them, but I've never had a sample to work with.  Also, GIF and JPEG
files have the ability to add text comments to the image, so you
should add a "Copyright (C) 1997, Elmer J. Fudd" to the image in the
text block.  (You can see this information if you view the image in
Netscape and do "View Document Info".)  Personally I don't like the
copyright notice attached to the pixels, I think its ugly, but that's
just me :)
- --
  ``Between stimulus and response is the will to choose.''  -- Steven Covey
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
     3D Paint: The Power to Create in 3D;		Rich Thomson
     email me for more info				rthomson@ptc.com

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Date: Thu, 16 Oct 1997 10:46:08 -0600
From: Rich Thomson <rthomson@ptc.com>
Subject: Re: (fractint) Copyright law 

Jon, thanks for the interesting viewpoint.  Here's a question for
everyone to ponder.  If I take the PAR/FRM files distributed in the
fracxtra package and make batch files to generate all the images and
them make the images available for others to browse on the web, would
I be violating people's copyright?  Presumably they published the
FRM/PAR files in fracxtra to share in the first place.  Many of the
images in that collection take many hours to compute even on my P90
machine.  People always say "distribute the par file and let the
person recompute the image if they want", but as image computation
time increases, it becomes less likely that people will even SEE the
more heavy duty images.  Lots of people are impatient and abort the
image if it takes too long.  I know that I wouldn't have seen even
half of these images if I didn't batch render them and browse later.
Thoughts?
- --
  ``Between stimulus and response is the will to choose.''  -- Steven Covey
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
     3D Paint: The Power to Create in 3D;		Rich Thomson
     email me for more info				rthomson@ptc.com

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Date: Thu, 16 Oct 1997 10:53:10 -0600
From: Rich Thomson <rthomson@ptc.com>
Subject: Re: (fractint) Copyright law 

In article <3.0.2.32.19971016054700.00722488@mail.eskimo.com> ,
    Andrew Schoonmaker <neon@eskimo.com>  writes:
> A couple of questions...  One, what do you mean by "period 16" and "period
> 64"? 

I'll take a stab at it... each "bud" in M is a basin of attraction.
Inside each "bud" is a point c, where z := z^2 + c is a cycle.  The
length of the cycle is the period referred to; we can label the entire
basin of attraction with the period of this point c.  The main cardiod
is period 1, the bud along the real axis to the left of the main
cardiod is period 2, the next bud to the left of that along the real
axis is period 4, and so on.  The period doubling as you progress down
the real line can be viewed in fractint by looking at the bifurcation
fractal type.  The bifurcation fractal type is a visualization of the
dynamics of M along the real line.

Clearer or muddier now? :)
- --
  ``Between stimulus and response is the will to choose.''  -- Steven Covey
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
     3D Paint: The Power to Create in 3D;		Rich Thomson
     email me for more info				rthomson@ptc.com

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Date: Thu, 16 Oct 1997 13:18:55 -0400 (EDT)
From: RBarn0001@aol.com
Subject: Re: (fractint) Copyright law

In a message dated 97-10-15 17:44:41 EDT, you write:

<< Since the topic's been brought up, I'd like to ask: what does 
 everybody think of copyright law as applied to fractals? That is, there 
 exists a sense in which no fractal image is 'written' by anyone (except 
 perhaps the inventor of the original formula) but only discovered inside 
 a mathematical construct. One can envision legions of artists 
 copyrighting every section of the Mandelbrot set at, say, zoom 4x. >>

It applies. Several of us fractal artists have been involved in a suit with
someone using images without permission. The case was settled out of court,
but the take home lesson is that intellectual properties laws, including
copyright, do apply. That's why many of us include copyright notices in our
par files.
Ron Barnett 

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Date: Thu, 16 Oct 1997 12:37:38 -0500
From: "Justin A. Kolodziej" <4wg7kolodzie@vms.csd.mu.edu>
Subject: (fractint) Julibrot bug report

{WARNING: THIS DOCUMENT CONTAINS EXPLICIT MATHEMATICAL CONTENT! IF
QUATERNION JULIA SETS SCARE YOU, READ NO FURTHER!}

The Julibrot fractal type seems to have a serious bug in it.  It
concerns drawing with the quat and hypercomplex types. Here's the
details:
1.  Draw a julibrot with orbit set to quatj, params set to your favorite
numbers (preferably <1), and
the from...to values set to -1,0,1,0.  If you're too lazy, here's a .par
file that does the same thing:
testquat1          { ; any quatjulia
  reset=1960 type=julibrot julibrotfromto=-2/2/0/0 julibroteyes=2.5
  orbitname=quatjul center-mag=0/0/0.6666667
  params=-0.14/-0.32/0.1/0.5/0/0 colors=@altern.map
  }
You get some type of quaternion julia set that probably isn't very
interesting.
Now press Z and change the orbit type to "quat".  Leave everything the
same, including the from...to values. A .par file for this:
testquat2          { ; quat after pressing z
  reset=1960 type=julibrot julibrotfromto=-2/2/0/0 julibroteyes=2.5
  orbitname=quat center-mag=0/0/0.6666667 params=-0.14/-0.32/0.1/0.5
  colors=@altern.map
  }
What do you see?  If your program is like mine, you get the exact same
picture that you get for step 1.
Wait, it gets worse.  Press t and reselect julibrot.  Again, set the
orbit to quat and change from...to to -2,0,2,0. .par file:
testquat3          { ; julibrot/quat after pressing t
                     ; a sphere on my system
  reset=1960 type=julibrot julibrotfromto=-2/2/0/0 julibroteyes=2.5
  orbitname=quat center-mag=0/0/0.6666667 params=0/0/0/0 float=y
  colors=@altern.map
  }
Now, you get a sphere.  What's going on here???? I thought if you pile
up slices of the quat fractal type (2-D) you would get something much
more interesting than a sphere, especially because you get the original
Mandelbrot if you set all the params to 0 for the quat type (not
quatjulia).  BTW, the same thing happens for the hypercomplex type.  And
it doesn't work in Winfract either.

Also, which way does julibrot with orbit=quatjul pile up the slices of
the quaternion julia that you select?  I've tried to find quaternion
julias to make 3-dimensional, but when I pick one with, say, 5 branches,
I can never find a trace of this symmetry in the plane of the screen.
Is this because the quatjulia slices that appear in that type get drawn
horizontally in the julibrot rendering, or does it just get hidden?

Justin Kolodziej

"I only use Win-doze because:
1. I need more hard drive space (read: a new hard drive) to run Solaris
2. 32 megs (the minimum) probably isn't enough for Solaris
3. 0% of my current apps would run on Solaris (unless there is an MS-DOS

or Windows emulator available)
4. All of the above costs MONEY (which I don't have)"
- -Me






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Date: Thu, 16 Oct 1997 13:57:47 -0400
From: Gedeon Peteri <gedeon@InfoAve.Net>
Subject: (fractint) Re: color maps

<HTML>
Ron, Well, yes! How stupid of me! I should have noticed that missing slash!&nbsp;
In any event, I got to your site and downloaded Makemap v. 1.2, but I regret
to report that it does not work properly.&nbsp; When maximizing the window,
large part of the grid disappears and is replaced by a jumble of dots.&nbsp;
A map, however, can still be loaded, but now something related happens
when one reduces the window.&nbsp; Part of the maximized image remains
in the background, with the reduced image overlapping it.&nbsp; None of
these problems occurred with version 1.1, to which I have now returned.&nbsp;
I like your program and use it a lot.&nbsp; All of us owe a gratitude to
people like you who generously make their work available free to all.&nbsp;
Gedeon
<BR>&nbsp;</HTML>


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Date: Thu, 16 Oct 1997 12:09:35 -0600
From: Rich Thomson <rthomson@ptc.com>
Subject: Re: (fractint) Re: color maps 

Speaking of color map tools, does anyone know of a tool that extracts
MAP files from GIF files and lets you visually combine the colormaps
from a collection of images, using combinative techniques like
addition, subtraction, blending, random mix, etc., of the individual
map entries?  Sort of like the KPT fractal explorer interface, but for
colormaps.
- --
  ``Between stimulus and response is the will to choose.''  -- Steven Covey
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
     3D Paint: The Power to Create in 3D;		Rich Thomson
     email me for more info				rthomson@ptc.com

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Date: Thu, 16 Oct 1997 12:19:40 -0600
From: Rich Thomson <rthomson@ptc.com>
Subject: (fractint) Fractal Geometry of Nature -- $ 7.95 !

Someone recently asked about this book, but I can't remember on which
list, so I'm sending this to both.  Actually, its good for both lists
anyway :)

<URL: http://www.hamiltonbook.com/titles/8/4/5/845396.html>

This book, HARDBACK, is an absolute steal at only $8 + $3 shipping.
I don't work for hamilton book, but I love the deals they have on
remainders!  Buy this book now while you have the chance at this
price.  Perfect for the coffee table!  Lots of pictures, easily
digestible in short doses as each section discusses different
applications of fractals isolated from other sections.  The bibliography
alone is worth the price of the book!

You won't be sorry :).
- --
  ``Between stimulus and response is the will to choose.''  -- Steven Covey
 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
     3D Paint: The Power to Create in 3D;		Rich Thomson
     email me for more info				rthomson@ptc.com

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