ftp.xmission.com/2014.06.ftp.xmission.com.tar/ftp.xmission.com/pub/lists/fractint/archive/v01.n141

Internet Message Format | 1998-03-20 | 41KB

From: [e-mail] (fractint-digest)
To: [e-mail]
Subject: fractint-digest V1 #141
Reply-To: fractint-digest
Sender: [e-mail]
Errors-To: [e-mail]
Precedence: bulk


fractint-digest         Friday, March 20 1998         Volume 01 : Number 141




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

Date: Fri, 20 Mar 1998 04:41:54 -0800
From: Peter Jakubowicz <[e-mail]>
Subject: Re: (fractint) Fractals Just Went Nuclear!

These are incredible! (has any tried them?). But the cool/weird thing is
that if I set outside color to summ I get pictures of M-sets and Julias
within M-sets. Paul, can you explain?


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 09:42:17 -0500 (EST)
From: Ian Kaplan <[e-mail]>
Subject: Re: (fractint) Trying Something Biological

> I wanted to try something different if it is possible at all: I
> wanted to try and get a set of raw material. I will catch some beetle
> the coming summer and so there are the caughts of one summer. Maybe I
> can get the caughts of some previous summers, so one can see some
> tendencies. But that alone doesn't make up a new formula as I have
> imagined. But I'm open to any other idea as long as there is
> something envolved that touches the field of biology (and that's big,
> believe me).

well, the failed Ph.D work of the grad student in chaos in _Arcadia_ was
the chaotic nature of grouse populations on his family estate in England
for the last few hundred years...


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 09:34:17 -0700
From: Rich Thomson <[e-mail]>
Subject: Re: (fractint) Time for a newsgroup?

If you want a newsgroup, you can always use sci.fractals -- which I
helped create and have since abandoned.  Why have I abandoned it?
Because usenet is (now) a classic example of the "tragedy of the
commons".  Since noone really owns usenet or controls it or issues
rules for it, it has been abused and "overgrazed".

If you attempt to gain useful information from usenet now, you will
have to wade through many spam messages to get what you're looking
for.  Even worse, if you decide to post to usenet you will forever more
get gobs of spam at that email address.  Even moderation won't fix the
problem of e-mail spam generated by extracting email addresses from
usenet posts.

To avoid spam, what everyone has done is started fudging their email
addresses in their usenet posts.  So now when someone asks a question
and you know the answer, you can't easily reply to the sender of the
message in private because they've farbled their reply address to avoid
spam.

The end result is that everyone I know who previously used usenet to
exchange knowledge, experience and information now restricts themselves
to local newsgroups or mailing lists like this one.  (I read the
newsgroups at my ISP and the support newsgroups carried by my compiler
vendor, but nothing more.)  Many new people joining the net can grok a
mailing list, but usenet is completely a mystery to them.

I know I've gotten much more information from these fractal mailing
lists that have been created in the past year or so than I ever got
from reading or posting to sci.fractals.
- --
                                               Rich Thomson
                                               [e-mail]

- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 11:22:03 -0800
From: Mark Christenson <[e-mail]>
Subject: Re: (fractint) Colormap Question

At 10:00 PM 3/19/98 -0500, Philip wrote:
>Here's another variant and three pars, including one using the stripe and
>one with a nice amber/black map.

Do you (or anyone else, for that matter) have any other variants?
As you know, I am trying to keep a complete index of these, which
in future I will post on my Web site.


Bud


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 15:05:26 -0500
From: "Peter Gavin" <[e-mail]>
Subject: (fractint) Can't resume an image

I have an images that I started, then saved after a couple lines were drawn.
Well, it's just a mandelbrot, but I can't resume the image.  I even tried
loading it up, saving the params to a par file, then restarting fractint
completely, and loading the par, but it still wont resume it after I hit
escape or something.  If I hit tab after loading the image, it says "Prms
chaged since rendered" or something like that.  Can someone tell me if this
is a bug or what??...

Pete
<[e-mail]>



- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 15:10:53 -0500
From: "Peter Gavin" <[e-mail]>
Subject: Re: (fractint) Sqrt(3) in the Mset

I know, that's what I meant... -sqrt(3)...  But anyways, I realized it
wasn't that shortly thereafter...  But does anyone know what it really
is?...  It would be interesting to find out, to say the least...

Pete

- -----Original Message-----
From: Jay Hill <[e-mail]>
To: [e-mail] <[e-mail]>
Date: Thursday, March 19, 1998 1:13 AM
Subject: Re: (fractint) Sqrt(3) in the Mset


|Wow Kerry,
|
|Talk about quick analysis!  Peter posted the question only about 5
|hours ago and you have 421 frames already!??!@?!  This and a
|few more like it might make a good CD.  I had to change color
|schemes at least once while I did the zoom. It gets a little messy
|near the arbitrary precision limit.
|
|I might add that we KNOW sqrt(3) is wrong because
|
|sqrt(3) > -1.75  = base of period 3 midget
|
|which is on the wrong side.  The limit is on the '-' side of the
|midget so we must have
|
|limit<-1.75.
|
|Jay
|
|----------
|> From: Kerry Mitchell <[e-mail]>
|> To: [e-mail]
|> Subject: Re: (fractint) Sqrt(3) in the Mset
|> Date: Wednesday, March 18, 1998 9:57 PM
|>
|> I agree with Jay.  And if anyone's got 25 Megs to burn up, I've got a 421
|> frame 320x240 avi that shows the zoom from a magnitude of 1 to 10^12.
|>
|> Kerry
|>
|>
|---------------------------------------------------------------------------
- ----
|> Kerry Mitchell
|> [e-mail]
|>
|---------------------------------------------------------------------------
- ----
|>
|> On Wed, 18 Mar 1998, Jay Hill wrote:
|>
|> > > From: Peter Gavin <[e-mail]>
|>
|> > > the new midget : (-1.75,0) :: (-1.75,0) : the main mset
|> > > Over and over and over again, and I realized that a familiar number
was
|> > > coming up, sqrt(3).  Atleast I think it was that... I'll have to
double
|> > > check.  Anyways, the center of each successive zoom approached closer
and
|> > > closer to that.
|> >
|> > I get the limit as -1.78644025556369
|>
|
|
|-
|------------------------------------------------------------
|Thanks for using Fractint, The Fractals and Fractint Discussion List
|Post Message:   [e-mail]
|Get Commands:   [e-mail] "help"
|Administrator:  [e-mail]
|Unsubscribe:    [e-mail] "unsubscribe fractint"


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 13:26:56 -0700 (MST)
From: Kerry Mitchell <[e-mail]>
Subject: Re: (fractint) Sqrt(3) in the Mset

Pete,

I suspect that the limit is one of those infinity of numbers that have no
"nice" representation.  The number that Jay and I both found (-1.78...)
seems to be a good start.  Another problem is that the limit is not well
defined.  That is, we (humans) understand the process of zooming in
repeatedly, but mathematically (I think) there should be one point at the
end of all this zooming.  Where would this point be?  For example, there
is a well-defined limit at the Feigenbaum point, the limit of all the
period-doubling cascades.  I'm not sure what the corresponding point is in
your question.

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

On Fri, 20 Mar 1998, Peter Gavin wrote:

> I know, that's what I meant... -sqrt(3)...  But anyways, I realized it
> wasn't that shortly thereafter...  But does anyone know what it really
> is?...  It would be interesting to find out, to say the least...
>
> Pete



- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 13:28:57 -0700 (MST)
From: Kerry Mitchell <[e-mail]>
Subject: Re: (fractint) Can't resume an image

Pete,

Maybe you could post one or two of the offending par's, and maybe your
sstools.ini file, to help us figure out what's going on.

Kerry

>I have an images that I started, then saved after a couple lines were
drawn.
>Well, it's just a mandelbrot, but I can't resume the image.  I even tried
>loading it up, saving the params to a par file, then restarting fractint
>completely, and loading the par, but it still wont resume it after I hit
>escape or something.  If I hit tab after loading the image, it says "Prms
>chaged since rendered" or something like that.  Can someone tell me if
this
>is a bug or what??...
>
>Pete
><[e-mail]>

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



- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 15:51:27 -0500
From: [e-mail]
Subject: (fractint) A linear color palette in Fractint

The other day I got a bit frustrated with my clumsy attempts to craft some
changes to a color map using the Fractint color palette editor. Trying to
position a color band under the 'F' command was causing the frustration
since I was trying to get it positioned near one of the 'folds' in the
16x16 color-matrix.

"It would be a darn sight easier if this palette was linear rather than
boxed and folded like this!" is a sanitized version of the thoughts that
were running through my head when it popped into my mind that a 'fractal'
constructed as a flat, inclined plane would simulate a linear palette. So
why not create a Fractint formula for a flat, inclined plane? Simple, no?

OK, so I'm not a Fractint formula expert, but I told myself I could use the
practice. It ought to be something like:

palette-psuedo-code  {
  Initialize K to some linear function of real(pixel) :
  Iterate K = K - some delta
  Until K < some constant
}

So I hacked and hacked and finally here's what worked: (I have a
1024x768x256 monitor)

palette           {
  reset=1960 type=formula formulafile=fractint.frm formulaname=palette
  center-mag=-0.858435/-10.7688/1.859669 params=200/0/1/0/100000/0
  passes=1 float=y maxiter=500
  }

frm:palette {
  K = real(p1)*real(pixel):
  K = real(K)-real(p2)
  |K| < real(p3)
}

Would a Fractint formula expert care to answer a couple of questions? I'd
appreciate any advice on how you would have attacked this 'problem'. I sure
discovered that I don't have a 'feel' for fractint formulas.


Why did I require such large values for P1 and P3?
Why did I have to go to 500 maxiter?
Do I really need all those real() function calls?
Why didn't real(K) < real(p3) work when I tried it? Why did I have to use
the absolute value of K instead?
Could I have calculated the parameters and center-mag values from scratch
just knowing my monitor resolution? (I think this is the real question I
have. If I really understood formulas I think I could do this, but I
haven't a clue.)


(This approach to editing a color map using a linear palette is sort of
helpful
even though it's sort of an extra step to have to load the linear-plane
fractal gif to edit the color map.)

Thanks, any comments would be appreciated.
Bill Decker



- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 14:37:46 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) A linear color palette in Fractint

Bill...

I'm not really sure where your frustrations with the colormap editor
are......but I know I can whap out a new color map in about 10 mins on a
good day and I'm a computer dolt. I seriously suggest you take a look at
Linda Allison's lesson on the colormap editor. She made it very easy for me
to understand. I don't know from this "F" command that is frustrating you
and probably don't want to learn. Try Linda's approach....

http://wizzle.simplenet.com/linda/lindas_lessons.htm

will get you to her wonderful explanations about the color map editor.

Best wishes for happy fractaling

Angela

At 03:51 PM 3/20/98 -0500, you wrote:
>
>The other day I got a bit frustrated with my clumsy attempts to craft some
>changes to a color map using the Fractint color palette editor. Trying to
>position a color band under the 'F' command was causing the frustration
>
>(This approach to editing a color map using a linear palette is sort of
>helpful
>even though it's sort of an extra step to have to load the linear-plane
>fractal gif to edit the color map.)
>
>Thanks, any comments would be appreciated.
>Bill Decker


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 17:34:17 -0500
From: Sylvie Gallet <[e-mail]>
Subject: (fractint) A linear color palette in Fractint

Hi Bill,

  Here is a resolution-independent formula:

palette { ; use maxiter=3D255 and outside=3Dsumm
  z0 =3D 256 * real(scrnpix)/real(scrnmax) , iter=3D0 :
  iter =3D iter + 1
  z =3D z0 - iter
  0
}

palette-par        { ; .                                    t=3D  0:00:00=
=2E66
                     ; Copyright Sylvie Gallet, Mar 20, 1998
                     ; <[e-mail]>
                     ; t=3Dcalc time using a Pentium 166 at 320 x 200
  reset=3D1960 type=3Dformula formulafile=3Dtest.frm formulaname=3Dpalett=
e
  passes=3D1 center-mag=3D3.33067e-016/-2.22045e-016/1.893939 float=3Dy
  maxiter=3D255 outside=3Dsumm colors=3D038<128>wwzwwzvvy<123>F00
  }

        - Sylvie

- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 17:39:35 -0500
From: "Peter Gavin" <[e-mail]>
Subject: Re: (fractint) Can't resume an image

Well...  after a bit of thinking, I tried zooming out one level, and that
worked.  As a matter of fact, it also jumped out of arbitrary position into
regular float mode.  It may have had something to do with the problem I had
with the julia set before.

Pete


- -----Original Message-----
From: Kerry Mitchell <[e-mail]>
To: [e-mail] <[e-mail]>
Date: Friday, March 20, 1998 3:32 PM
Subject: Re: (fractint) Can't resume an image


|Pete,
|
|Maybe you could post one or two of the offending par's, and maybe your
|sstools.ini file, to help us figure out what's going on.
|
|Kerry
|
|>I have an images that I started, then saved after a couple lines were
|drawn.
|>Well, it's just a mandelbrot, but I can't resume the image.  I even tried
|>loading it up, saving the params to a par file, then restarting fractint
|>completely, and loading the par, but it still wont resume it after I hit
|>escape or something.  If I hit tab after loading the image, it says "Prms
|>chaged since rendered" or something like that.  Can someone tell me if
|this
|>is a bug or what??...
|>
|>Pete
|><[e-mail]>
|
|---------------------------------------------------------------------------
- ----
|Kerry Mitchell
|[e-mail]
|---------------------------------------------------------------------------
- ----
|
|
|
|-
|------------------------------------------------------------
|Thanks for using Fractint, The Fractals and Fractint Discussion List
|Post Message:   [e-mail]
|Get Commands:   [e-mail] "help"
|Administrator:  [e-mail]
|Unsubscribe:    [e-mail] "unsubscribe fractint"


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 14:54:29 -0800
From: Wizzle <[e-mail]>
Subject: (fractint) Colormaps Ahoy

I've now sorted all of the colormap submittals to date into categories
....after pruning we have:

1. 1,2,3 maps = 21
2. Blacks = 8
3. Jewels = 14
4. Mid to long gradients = 43
5. Short gradients = 8
6. Specialty = 6
7. Stripes = 25

Total 120 maps

Question......fractint currently comes with 27 maps, including the default
map. I suggested we bundle about 80 or so maps with the new version of
Fractint. For those of us running Winders even a 4k map takes up 20k space
(I believe) due to the way Windoze partitions a 2gig disk. That means 80
maps take up 1.6 megs of space.  Is that acceptable? Folks can always toss
maps to save space.

Assuming 80 or so maps are OK .....I'll start work on a run-off in the 123,
mid-long gradients and stripes categories. How do people want to see the
maps?? I can bundle the whole shebang up or by category (which I think is
more useful).

The maps submitted have been great!!! I've enjoyed myself immensely looking
at all the wonderful variations. Thank you all so much.

Angela


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 17:46:13 -0500
From: "Peter Gavin" <[e-mail]>
Subject: Re: (fractint) Sqrt(3) in the Mset

Well, I think I heard someone say something to the affect of that the
closest minibrot is one thirty-second of the size of the current one.  So,
if the center of the starting minibrot is exactly -1.75 and the center of
the next is exacly -1.75 + -1.75/32, then the next after that should be
- -1.75 + -1.75/32^2 etc. etc.

Pete


- -----Original Message-----
From: Kerry Mitchell <[e-mail]>
To: [e-mail] <[e-mail]>
Date: Friday, March 20, 1998 3:32 PM
Subject: Re: (fractint) Sqrt(3) in the Mset


|Pete,
|
|I suspect that the limit is one of those infinity of numbers that have no
|"nice" representation.  The number that Jay and I both found (-1.78...)
|seems to be a good start.  Another problem is that the limit is not well
|defined.  That is, we (humans) understand the process of zooming in
|repeatedly, but mathematically (I think) there should be one point at the
|end of all this zooming.  Where would this point be?  For example, there
|is a well-defined limit at the Feigenbaum point, the limit of all the
|period-doubling cascades.  I'm not sure what the corresponding point is in
|your question.
|
|---------------------------------------------------------------------------
- ----
|Kerry Mitchell
|[e-mail]
|---------------------------------------------------------------------------
- ----
|
|On Fri, 20 Mar 1998, Peter Gavin wrote:
|
|> I know, that's what I meant... -sqrt(3)...  But anyways, I realized it
|> wasn't that shortly thereafter...  But does anyone know what it really
|> is?...  It would be interesting to find out, to say the least...
|>
|> Pete
|
|
|
|-
|------------------------------------------------------------
|Thanks for using Fractint, The Fractals and Fractint Discussion List
|Post Message:   [e-mail]
|Get Commands:   [e-mail] "help"
|Administrator:  [e-mail]
|Unsubscribe:    [e-mail] "unsubscribe fractint"


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 17:48:25 -0500
From: "Peter Gavin" <[e-mail]>
Subject: Re: (fractint) Colormaps Ahoy

Jeez,  on a 2gig disk, how can 1.6megs NOT be acceptable? :)
And besides, MS-DOS partitions a 2gig disk the same way :)

Pete

- -----Original Message-----
From: Wizzle <[e-mail]>
To: [e-mail] <[e-mail]>
Date: Friday, March 20, 1998 5:42 PM
Subject: (fractint) Colormaps Ahoy


|I've now sorted all of the colormap submittals to date into categories
|....after pruning we have:
|
|1. 1,2,3 maps = 21
|2. Blacks = 8
|3. Jewels = 14
|4. Mid to long gradients = 43
|5. Short gradients = 8
|6. Specialty = 6
|7. Stripes = 25
|
|Total 120 maps
|
|Question......fractint currently comes with 27 maps, including the default
|map. I suggested we bundle about 80 or so maps with the new version of
|Fractint. For those of us running Winders even a 4k map takes up 20k space
|(I believe) due to the way Windoze partitions a 2gig disk. That means 80
|maps take up 1.6 megs of space.  Is that acceptable? Folks can always toss
|maps to save space.
|
|Assuming 80 or so maps are OK .....I'll start work on a run-off in the 123,
|mid-long gradients and stripes categories. How do people want to see the
|maps?? I can bundle the whole shebang up or by category (which I think is
|more useful).
|
|The maps submitted have been great!!! I've enjoyed myself immensely looking
|at all the wonderful variations. Thank you all so much.
|
|Angela
|
|
|-
|------------------------------------------------------------
|Thanks for using Fractint, The Fractals and Fractint Discussion List
|Post Message:   [e-mail]
|Get Commands:   [e-mail] "help"
|Administrator:  [e-mail]
|Unsubscribe:    [e-mail] "unsubscribe fractint"


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 15:39:35 -0800
From: "Jay Hill"<[e-mail]>
Subject: Re: (fractint) Sqrt(3) in the Mset

Pete,

- -1.78644025556369   is closer to  -10*sqrt(sqrt(8))/(8+sqrt(2))

:-)

Jay



- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 18:52:58 -0500
From: "Peter Gavin" <[e-mail]>
Subject: Re: (fractint) Sqrt(3) in the Mset

Boy, either you're really bored, or you have a really good calculator... j/k
:)

Pete


- -----Original Message-----
From: Jay Hill <[e-mail]>
To: [e-mail] <[e-mail]>
Date: Friday, March 20, 1998 6:39 PM
Subject: Re: (fractint) Sqrt(3) in the Mset


|
|Pete,
|
|-1.78644025556369   is closer to  -10*sqrt(sqrt(8))/(8+sqrt(2))
|
|:-)
|
|Jay
|
|
|
|-
|------------------------------------------------------------
|Thanks for using Fractint, The Fractals and Fractint Discussion List
|Post Message:   [e-mail]
|Get Commands:   [e-mail] "help"
|Administrator:  [e-mail]
|Unsubscribe:    [e-mail] "unsubscribe fractint"


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 18:55:50 -0500
From: "Peter Gavin" <[e-mail]>
Subject: Re: (fractint) Sqrt(3) in the Mset

Jeez, you're right, it is close!  But what I wanna know is, how the *&^$ did
you figure THAT out?!!
:)

Pete


- -----Original Message-----
From: Jay Hill <[e-mail]>
To: [e-mail] <[e-mail]>
Date: Friday, March 20, 1998 6:39 PM
Subject: Re: (fractint) Sqrt(3) in the Mset


|
|Pete,
|
|-1.78644025556369   is closer to  -10*sqrt(sqrt(8))/(8+sqrt(2))
|
|:-)
|
|Jay
|
|
|
|-
|------------------------------------------------------------
|Thanks for using Fractint, The Fractals and Fractint Discussion List
|Post Message:   [e-mail]
|Get Commands:   [e-mail] "help"
|Administrator:  [e-mail]
|Unsubscribe:    [e-mail] "unsubscribe fractint"


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 15:43:35 -0800
From: "Jay Hill"<[e-mail]>
Subject: Re: (fractint) Colormaps Ahoy

wizzle wrote

> I suggested we bundle about 80 or so maps with the new version of
Fractint.

Good idea and you can do it in very little space as one file containing
only pars required to create the images. The color part can be copied
out into any other par we need it for.

Example fragment.

colors=000<62>w00002<61>0w0404<61>00w666<61>www000000000

As an extreme limit, 80 of these is only a few k.

Jay



- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 18:13:33 -0600 (CST)
From: [e-mail] (Paul and/or Joyce Carlson)
Subject: (fractint) Three-way rendering formula

comment (
Of all the rendering methods I've posted to this list, the one
below is perhaps one of the most useful and versatile, even
though it's very simple compared to many of the others.  I've
used this method on hundreds of images in the two years since
I developed it.  It will work well with any equations that normally
have |z| < something as the bailout test.

I call this my three-way rendering method because the same image
can have three very different 3D effects depending on the colormap.

To see what I mean, first run the par called 3waymnd1.  You'll see
an overall image of the classic Mandelbrot set except that the
banding around the set has a smooth rounded appearance.  Save the
file if you want to.  With the image still on the screen, press
the @ key and select cmap1.  The banding around the Mandelbrot set
will change to have a folded look.  Then press the @ key again and
select cmap2.  The banding now narrows into strands and you can
see the background color through them.  Pressing the @ key again
and selecting cmap3 brings back the original image.

These effects are more dramatic when used on the image created
from running the par called 3waymnd2.

I'm hoping you're finding this stuff useful - are you?

Paul Carlson
}


frm:Mandel_3Way {; Copyright (c) Paul W. Carlson, 1998
    ; Alyways use float=y, outdide=summ
    ; real(p1) = escape circle radius squared
    ; imag(p1) = number of iterations to skip
    ; real(p2) number of color ranges
    ; imag(p2) number of colors in a range
    z = w = k = iter = range_num = bailout = 0
    c = pixel
    prev_modw2 = 1.0e20
    rad2 = real(p1)
    skip_iters = imag(p1)
    num_ranges = real(p2)
    colors_in_range = imag(p2)
    colors_in_range_1 = colors_in_range - 1
    :
    w = w * w + c
    ;
    IF ((prev_modw2 < rad2) && (|w| > rad2))
    bailout = 1
    IF (iter > skip_iters)
        k = 1
    ENDIF
    index = colors_in_range_1 * (rad2 - prev_modw2) / rad2
    z = (index + range_num * colors_in_range + 1) * k
    ENDIF
    prev_modw2 = |w|
    range_num = range_num + 1
    IF (range_num == num_ranges)
    range_num = 0
    ENDIF
    iter = iter + 1
    z = z - iter
    bailout == 0 && |w| <= rad2
}

3waymnd1           { ; Copyright (c) Paul W. Carlson, 1998
  reset=1960 type=formula formulafile=mnd3way.par
  formulaname=mandel_3way passes=t
  corners=-2.338959/1.085041/-1.284/1.284
  params=4/2/2/125 float=y maxiter=512 inside=253 outside=summ
  colors=000OOO<60>yyyzzzyyy<60>OOOC0C<60>yVyzVzyVy<60>C0C000<3>000
  }

3waymnd2           {; Copyright (c) Paul W. Carlson, 1998
  reset=1960 type=formula formulafile=mnd3way.par
  formulaname=Mandel_3Way passes=t
  corners=-1.994336436926/-1.994329835296/4.401086988127e-00\
  6/-4.401086988828e-006/-1.994329835296/-4.401086988828e-006
  params=4/21/2/125 float=y maxiter=2000 inside=253 outside=summ
  colors=000OOO<60>yyyzzzyyy<60>OOOC0C<60>yVyzVzyVy<60>C0C000<3>000
  }

cmap1              { ; Copyright (c) Paul W. Carlson, 19981
  colors=000zVz<60>C0COOO<61>zzzzzzyyy<60>OOOC0C<60>zVz000<3>000
  }

cmap2           { ; Copyright (c) Paul W. Carlson, 1998
  colors=MFjOOO<35>xxxzzzyyy<37>OOOMFj<46>MFjC0C<35>xUxzVzyVy<37\
  >C0CMFj<46>MFj000<3>000
  }

cmap3           { ; Copyright (c) Paul W. Carlson, 1998
  colors=000OOO<60>yyyzzzyyy<60>OOOC0C<60>yVyzVzyVy<60>C0C000<3>000
  }



- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 16:39:10 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Colormaps Ahoy

Jay....

would your methodology be obvious to a newbie? as you know...I still don't
understand colors=

angela

At 03:43 PM 3/20/98 -0800, you wrote:
>
>wizzle wrote
>
>> I suggested we bundle about 80 or so maps with the new version of
>Fractint.
>
>Good idea and you can do it in very little space as one file containing
>only pars required to create the images. The color part can be copied
>out into any other par we need it for.
>
>Example fragment.
>
>colors=000<62>w00002<61>0w0404<61>00w666<61>www000000000
>
>As an extreme limit, 80 of these is only a few k.
>
>Jay
>
>
>
>-
>------------------------------------------------------------
>Thanks for using Fractint, The Fractals and Fractint Discussion List
>Post Message:   [e-mail]
>Get Commands:   [e-mail] "help"
>Administrator:  [e-mail]
>Unsubscribe:    [e-mail] "unsubscribe fractint"
>
>

- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 17:01:58 -0800 (PST)
From: "James R. McKenzie" <[e-mail]>
Subject: Re: (fractint) Colormaps Ahoy

- ---Wizzle <[e-mail]> wrote:
>
> I've now sorted all of the colormap submittals to date into categories
> ....after pruning we have:
>
> 1. 1,2,3 maps = 21
> 2. Blacks = 8
> 3. Jewels = 14
> 4. Mid to long gradients = 43
> 5. Short gradients = 8
> 6. Specialty = 6
> 7. Stripes = 25
>
> Total 120 maps
>
> Question......fractint currently comes with 27 maps, including the
default
> map. I suggested we bundle about 80 or so maps with the new version of
> Fractint. For those of us running Winders even a 4k map takes up 20k
space
> (I believe) due to the way Windoze partitions a 2gig disk. That
means 80
> maps take up 1.6 megs of space.  Is that acceptable? Folks can
always toss
> maps to save space.
>
> Assuming 80 or so maps are OK .....I'll start work on a run-off in
the 123,
> mid-long gradients and stripes categories. How do people want to see
the
> maps?? I can bundle the whole shebang up or by category (which I
think is
> more useful).
>
> The maps submitted have been great!!! I've enjoyed myself immensely
looking
> at all the wonderful variations. Thank you all so much.
>
> Angela
>
>

The Map bundling idea sounds OK to me.  BTW you can re-partiton your
HDD so it won'y waste as much space.  Mine only uses 16k blocks versus
the 32k blocks it used to use.  The down side is you have to reformat
and if ya goof there is no going back unless you have a backup (I have
learned to love my Ditto 2GB external a helluva lot) but if you resize
your partition[s] you can get back a ton O' space.  After all you're
not giving up any space just re-distributing it.

Oh well that's my no sense worth.



                          James R. McKenzie


                         WHOOKAM88*@YAHOO*.COM



remove the *'s to send e-mail.
_________________________________________________________
DO YOU YAHOO!?
Get your free @yahoo.com address at http://mail.yahoo.com


- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 18:37:35 -0800
From: "Jay Hill"<[e-mail]>
Subject: Re: (fractint) Colormaps Ahoy

Hi wizzle,

Try this experiment. Copy these pars to JayColor.par

;
; Dr. J's Jello colors
; http://home.san.rr.com/jayrhill/FotN/FotNindx.html
;
colors4{  ; (c) Jay Hill, 1998
colors=000<62>w00002<61>0w0404<61>00w666<61>www000000000 cyclerange=1/252
 maxiter=250  inside=253
}
colors6{    ; (c) Jay Hill, 1998
colors=000<41>wU0000<40>Kc0000<40>KAc000<40>cPA000<40>0Km000<40>w0UmUA00\
0000 cyclerange=1/252  maxiter=250 inside=253
}
colors8{    ; (c) Jay Hill, 1998
  colors=000<30>w00000<29>0w0000<29>00w000<29>ww0000<29>w0w000<29>0ww000<2\
  9>www000<29>wU0000<2>000wUK000000 cyclerange=1/248 maxiter=250 inside=253
}
colors16{  ; (c) Jay Hill, 1998
  colors=000<14>w00000<13>0w0000<13>00w000<13>ww0000<13>0ww000<13>w0w000<1\
  3>wU0000<13>Uw0000<13>0wU000<13>U0w000<13>w0U000<13>0Uw000<13>www000<13>\
  UUU000<13>``0000<13>0cc000<10>000mU0000000 cyclerange=1/240 maxiter=250
inside=253
}

Now start Fractint fresh and point to this par file, select colors6 and run

it. You will get everything as defaults except the colors, inside, maxiter
and cyclerange. You should see the Mandelbrot set (the default). Zoom
into seahorse valley.  I set the maxiter so you could do the next step.
Press E to edit the colors, see how nice they are  :-)  Note the color in
cell 253.  It is for Dr. J, he is loosing his tan.

Now cycle the colors, OK  stop cycling and edit the colors - press E.
You messed them up?

No! Not completely.  See the colors are cycled in the range which
leaves color number 253 unchanged so it is still usable as the inside
color.  This is the kind of info we need in a color map. It is not enough
to have a .map file for some applications.  (These colors are for Dr. J's
Jello fractals he is tangling with lately.)

The neat thing is (someone pointed this out to this list last year) that
you can have a picture in progress and load just new colors only
using this method.  Go ahead, load colors8 and watch Fractint
recompute the same fractal with the new colors.

And all the colors are get-at-able with long names from one file,
for someone making a new image.  Once the image is created, the
'B' save procedure will put all this in the new par.

Jay






- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

Date: Fri, 20 Mar 1998 22:57:50 -0800
From: Ryan Jameson <[e-mail]>
Subject: Re: (fractint) Sqrt(3) in the Mset

At 06:55 PM 3/20/98 -0500, you wrote:
>Jeez, you're right, it is close!  But what I wanna know is, how the *&^$ did
>you figure THAT out?!!
>:)

Hmm... I remember from some time ago that there is a program written for
the HP48 calculator that would solve funky numbers like that for thier
fractional equivalent. It even inluded such numbers like square roots.
perhaps that is how he did it....

Ryan

- -
- ------------------------------------------------------------
Thanks for using Fractint, The Fractals and Fractint Discussion List
Post Message:   [e-mail]
Get Commands:   [e-mail] "help"
Administrator:  [e-mail]
Unsubscribe:    [e-mail] "unsubscribe fractint"

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

End of fractint-digest V1 #141
******************************