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fractint-digest         Sunday, March 8 1998         Volume 01 : Number 125




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

Date: Sat, 7 Mar 1998 17:08:41 -0600 (CST)
From: [e-mail] (Paul and/or Joyce Carlson)
Subject: (fractint) 5th-order Newton Formula

Here's a formula for a 5th-order Newton Mset and three pars
for which Sylvie Gallet kindly supplied the colormaps.

Paul Carlson

frm:Newt5_Atan_Mset {; Copyright (c) Paul W. Carlson, 1998
    ; F(w)   = w^5 - w^4 - w * c^2 + c^2
    ; F'(w)  = 5 * w^4 - 4 * w^3 - c^2
    ; F''(w) = 20 * w^3 - 12 * w^2,  initialize w to 12/20 = 0.6
    ;
    c = pixel
    c2 = c * c
    z = iter = bailout = 0
    colors_in_range = 50
    colors_in_range_1 = 49
    root1 = (1,0)
    root2 = sqrt(c)
    root3 = -root2
    root4 = sqrt(-c)
    root5 = -root4
    prev_w = w = 0.6:
    ;
    w4 = w^4
    w = w - (w * w4 - w4 - c2 * w + c2) / (5 * w4 - 4 * (w^3) - c2)
    ;
    delta_w = w - prev_w
    IF (|delta_w| < p1)
    angle = atan(imag(delta_w) / real(delta_w))
    IF (delta_w >= 0)
        IF (imag(delta_w) < 0)
        angle = pi + angle
        ELSE
        angle = pi - angle
        ENDIF
    ELSEIF (imag(delta_w) > 0)
        angle = -angle
    ENDIF
    IF     (|w - root1| < p1)
        range_num = 0
    ELSEIF (|w - root2| < p1)
        range_num = 1
    ELSEIF (|w - root3| < p1)
        range_num = 2
    ELSEIF (|w - root4| < p1)
        range_num = 3
    ELSEIF (|w - root5| < p1)
        range_num = 4
    ENDIF
    bailout = 1
    z = colors_in_range_1 * angle/pi + range_num * colors_in_range +
1
    ENDIF
    prev_w = w
    iter = iter + 1
    z = z - iter
    bailout == 0
}

n5atnm01           {; Parameters, coordinates by Paul Carlson
                    ; Colormap by Sylvie Gallet
  reset=1960 type=formula formulafile=n5atnm.frm
  formulaname=Newt5_Atan_Mset passes=t
  center-mag=+0.00000000000000000/+0.31491361205028330/3913676/1/180
  params=0.01/0 float=y maxiter=2000 inside=253 outside=summ
  colors=000A00<22>SD9TE9UFAUGAVHA<21>reMwww<48>555F00<15>YHB_JC_KC<3\
  0>zt`rrr<48>AAAK00<48>wmU000<3>000 cyclerange=1/250
  }

n5atnm05           {; Parameters, coordinates by Paul Carlson
                    ; Colormap by Sylvie Gallet
  reset=1960 type=formula formulafile=n5atnm.frm
  formulaname=Newt5_Atan_Mset passes=t
  center-mag=-0.00000000000000000/+0.17156717356342680/60130.88/1/180
  params=0.01/0 float=y maxiter=2000 inside=253 outside=summ
  colors=000zzz<48>DDDzrZ<47>L71K50K62<22>VMSVNTWOVXPW<21>xuuzwwzt`<3\
  0>_LEZJDYICYHCXGBWFA<12>K000AA<22>IQTJRULSV<23>rwz000<3>000
  }

n5atnm06           {; Parameters, coordinates by Paul Carlson
                    ; Colormap by Sylvie Gallet
  reset=1960 type=formula formulafile=n5atnm.frm
  formulaname=Newt5_Atan_Mset passes=t
  center-mag=-0.00000000000000004/+0.14499911078052670/1162187/1/180
  params=0.01/0 float=y maxiter=2000 inside=253 outside=summ
  colors=000A00<22>SD9TE9UFAUGAVHA<21>reMwww<48>555F00<15>YHB_JC_KC<3\
  0>zt`rrr<48>AAAK00<48>wmU000<3>000 cyclerange=1/250
  }


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Date: Sat, 07 Mar 1998 20:05:18 -0800
From: Peter Jakubowicz <[e-mail]>
Subject: (fractint) Bugs

Hi
Here are some bugs (but you really have to use yr imagination, and I don't
know what happened to the amber. Thanks to Angela and Bud (I'm sorry I
don't know yr surnames) and Jim Muth for colormaps; and Paul Carlson for
the formula.




Bug_Angela         { ; Formula by Paul Carlson
                     ; Colormap by Angela
                     ; I drank coffee and watched it generate
  reset=1960 type=formula formulafile=pcarlson.frm
  formulaname=Newt5_Atan_Mset passes=t
  center-mag=-0.36142477381055520/+0.63869095675923090/458325.6
  params=0.01/0 float=y maxiter=1024 outside=summ
  colors=000H20<13>rf8ui9wmA<6>KA3KA2F51A00<3>N00Q70<11>cUI<4>A00ujA<13>K4\
  1A00<6>K00900<7>400400500<14>K00<3>`MBOAD<3>mcPtgM<6>U00<3>F00<7>zm0<2>f\
  T0<17>RC0L60<4>G10F00F00F00K00<4>000<77>000F00<7>F00QB0<3>M70
  cyclerange=1/250
  }

Bug_Jim            { ; Formula by Paul Carlson
                     ; Colormap by Jim Muth
                     ; I drank coffee and watched it generate
  reset=1960 type=formula formulafile=pcarlson.frm
  formulaname=Newt5_Atan_Mset passes=t
  center-mag=-0.0581296/-0.388103/17.24851/1/-90 params=0.02/0 float=y
  maxiter=2048 outside=summ
  colors=000vsO<7>vqOvb0<28>vb0vzf<14>vzfvzevzevzdvzc<11>vzSvuQ<2>vuKvuIvu\
  FvuCvu9vu6vr3vq0<8>vp0vm0<2>vk0vj0vj0vj0<5>vh0vh0vg0vf0<4>v_0vZ0vZ0<16>v\
  M0vM0vL0vL0tJ0<2>qE0oC0nB0lA0<9>9A0vQ0<2>vV0vX0vX0<31>vd0ve1ve1ve2ve2<46\
  >vqNvqNvrOvsOvtO<7>vrOvrOvsOvsO cyclerange=1/250
  }

Bug_Bud            { ; Formula by Paul Carlson
                     ; Colormap by Bud
                     ; I drank coffee and watched it generate
  reset=1960 type=formula formulafile=pcarlson.frm
  formulaname=Newt5_Atan_Mset passes=t
  center-mag=-0.000252734/-0.143562/21.64871 params=0.01/0 float=y
  maxiter=2048 outside=summ
  colors=q000bo0am0_k<11>ATZASXBRWCQVDQU<6>JLMKKKLKK<29>xg1zh0yg0<29>MC0KA\
  0LA0<13>_86a77b66<4>h22i11k00m00<5>x00o00<25>000<31>sss<30>222000012<30>\
  0kz<4>0dqz00<3>s00 cyclerange=1/250
  }

Newt5_Atan_Mset {; Copyright (c) Paul W. Carlson, 1998
    ; F(w)   = w^5 - w^4 - w * c^2 + c^2
    ; F'(w)  = 5 * w^4 - 4 * w^3 - c^2
    ; F''(w) = 20 * w^3 - 12 * w^2,  initialize w to 12/20 = 0.6
    ;
    c = pixel
    c2 = c * c
    z = iter = bailout = 0
    colors_in_range = 50
    colors_in_range_1 = 49
    root1 = (1,0)
    root2 = sqrt(c)
    root3 = -root2
    root4 = sqrt(-c)
    root5 = -root4
    prev_w = w = 0.6:
    ;
    w4 = w^4
    w = w - (w * w4 - w4 - c2 * w + c2) / (5 * w4 - 4 * (w^3) - c2)
    ;
    delta_w = w - prev_w
    IF (|delta_w| < p1)
    angle = atan(imag(delta_w) / real(delta_w))
    IF (delta_w >= 0)
        IF (imag(delta_w) < 0)
        angle = pi + angle
        ELSE
        angle = pi - angle
        ENDIF
    ELSEIF (imag(delta_w) > 0)
        angle = -angle
    ENDIF
    IF     (|w - root1| < p1)
        range_num = 0
    ELSEIF (|w - root2| < p1)
        range_num = 1
    ELSEIF (|w - root3| < p1)
        range_num = 2
    ELSEIF (|w - root4| < p1)
        range_num = 3
    ELSEIF (|w - root5| < p1)
        range_num = 4
    ENDIF
    bailout = 1
        z = colors_in_range_1 * angle/pi + range_num * colors_in_range + 1

    ENDIF
    prev_w = w
    iter = iter + 1
    z = z - iter
    bailout == 0
}




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

Date: Sat, 07 Mar 1998 20:18:32 -0600
From: Janet Preslar <[e-mail]>
Subject: (fractint) Need help!

Hey gurus, I need some help! I, once upon a time, created this PHC image:

http://www.ParkeNet.org/jp/fractals/jp97039.jpg

with the following formula and par. Now when I go to generate it, I only get the
mandel curve part, not the lambdafn spiral. I need this to get this to work for
a deadline that is almost past. Can anyone duplicate my problem and/or suggest a
solution? (I need to generate at d&c high resolution image.)

Thanks for your help.

Janet


frm:JPd {; PHC -- mandel, lambdafn
  IF (whitesq)
    z = c = pixel
  ELSE
    z = pixel + p1, c = p2
  ENDIF
    :
  IF (whitesq)
    z = z*z + c
    PHC_bailout = |z| <= 4
  ELSE
    z = c * sin(z)
    PHC_bailout = |z| <= 64
  ENDIF
    PHC_bailout
}



jp97039.gif        { ; copyright 1997 -- Janet Preslar
  reset=1960 type=formula formulaname=JPd
  passes=1 center-mag=0.34375/-0.15625/6.4/1.3333 params=-0.33/0.17
  float=y maxiter=1500
  colors=000m_kXTh<12>234<4>HJP<8>cKco`o<5>000<8>XTM`WOdYI<4>wwc<8>H0K<4>P\
  0J<10>fez<6>000<7>5PS<7>wfw<7>000<7>0OD<8>wwc<6>000<8>uSS<6>fez<7>000<7>\
  5PS<8>wfz<6>000<7>0OD<5>wwcFTOHTN033<6>5PS<6>wfw<7>000<7>0OD<8>wwc<6>000\
  <7>wQN<3>oYf
  }




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

Date: Sun, 8 Mar 1998 01:01:13 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: (fractint) Viewwindows

Bug in Fractint 19.6: the "reset=" in a parfile doesn't seem to kill a
viewwindow setting. If I go through a PAR and hit an image with odd
viewwindows, they stay that way after that image, instead of being reset
by the next par's"reset=" line.


- --
    .*.  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, 8 Mar 1998 02:38:10 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) anybody try simplgif?

I have and I haven't managed to break it...yet <g>


- --
    .*.  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, 8 Mar 1998 02:56:15 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) Exploring new fractals

>
>I wrote:
>>... before you give up on (a)
>>Fractint sub-type, try a low bailout value.
>
>Note: this is particularly important for functions that
>always return values with magnitudes below 1, such as
>sine and cosine.

Hrm?
Really huge numbers pop up taking the cosine of a complex number with a big
imaginary part. That magnitude under 1 appliesonly on the real line...

- --
    .*.  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, 08 Mar 1998 01:03:17 -0800
From: Mark Christenson <[e-mail]>
Subject: Re: (fractint) Exploring new fractals

At 02:56 AM 3/8/98 -0500, Paul Derbyshire wrote:
>Hrm?
>Really huge numbers pop up taking the cosine of a complex number with a big
>imaginary part. That magnitude under 1 appliesonly on the real line...

Hmm... this was something I wasn't aware of.  Guess I'll have to educate
myself about this.  In spite of having taken math through advanced calculus
(and four years of physics), I don't think I ever applied trig functions to
complex numbers.  Or maybe I just forgot.


Bud


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Date: Sun, 8 Mar 1998 01:32:55 -0800 (PST)
From: "James R. McKenzie" <[e-mail]>
Subject: Re: (fractint) Viewwindows

- ---Paul Derbyshire <[e-mail]> wrote:
>
>
> Bug in Fractint 19.6: the "reset=" in a parfile doesn't seem to kill a
> viewwindow setting. If I go through a PAR and hit an image with odd
> viewwindows, they stay that way after that image, instead of being
reset
> by the next par's"reset=" line.
>


I've had the same problem.  On those "square" fractals that don't take
up the entire screen.  After running one if I want to run a saved
image or another paramater I have to restart FRACTINT.  I have a, more
or less, generic video card (made by Phoenix, it's a TRIO 32/64) with
2 meg O' ram and I run FRACTINT at 1024x768x256.  I've tried other
resolutions and it made ono difference.  It's not a "MAJOR" problem
but it can be annoying.  Is there a setting I can add to the
"sstools.ini" file to fix this?

Please lemme know if you folx have any solution.


                               L8R



BTW I've started usinmg my name now.  Don't all yawn at once.


                       James R. McKenzie
_________________________________________________________
DO YOU YAHOO!?
Get your free @yahoo.com address at http://mail.yahoo.com


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

Date: Sun, 8 Mar 1998 05:28:07 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) Exploring new fractals

>Hmm... this was something I wasn't aware of.  Guess I'll have to educate
>myself about this.  In spite of having taken math through advanced calculus
>(and four years of physics), I don't think I ever applied trig functions to
>complex numbers.  Or maybe I just forgot.

There are formulas for the sine and cosine of a complex number in terms of the
sine and cosine and hyperbolic sine and cosine of the real and imaginary
parts. The hyperbolic components can become unbounded for big imaginary
parts of z.

You could also use the Maclaurin series for sine and cosine.

- --
    .*.  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, 8 Mar 1998 05:30:11 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) Viewwindows

>I've had the same problem.  On those "square" fractals that don't take
>up the entire screen.  After running one if I want to run a saved
>image or another paramater I have to restart FRACTINT.

Restart Fractint? I've never had to do that; manually turning view windows
off has always sufficed. Are you using version 19.6 or an earlier version?


- --
    .*.  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, 8 Mar 1998 07:38:48 -0500
From: Sylvie Gallet <[e-mail]>
Subject: (fractint) Need help!

Hi Janet,

>> Can anyone duplicate my problem and/or suggest a solution? (I need to
>> generate at d&c high resolution image.)

  Here is the solution:

jp97039            {
  reset=3D1960 type=3Dformula formulafile=3Dpreslar.par formulaname=3Djpd=

  passes=3D1 center-mag=3D0.34375/-0.15625/6.4/1.3333
  params=3D-0.33/0.17/1/0.4 float=3Dy maxiter=3D1500
  colors=3D000m_kXTh<12>234<4>HJP<8>cKco`o<5>000<8>XTM`WOdYI<4>wwc<8>H0K<=
4>P\
  0J<10>fez<6>000<7>5PS<7>wfw<7>000<7>0OD<8>wwc<6>000<8>uSS<6>fez<7>000<7=
>\
  5PS<8>wfz<6>000<7>0OD<5>wwcFTOHTN033<6>5PS<6>wfw<7>000<7>0OD<8>wwc<6>00=
0\
  <7>wQN<3>oYf
  }

  Cheers,

        - Sylvie

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Date: Sun, 8 Mar 1998 07:45:31 EST
From: T R Moe <[e-mail]>
Subject: Re: (fractint) Viewwindows

Hi Paul -in a message dated 3/8/98 you wrote

>Bug in Fractint 19.6: the "reset=" in a parfile doesn't seem to kill a
>viewwindow setting. If I go through a PAR and hit an image with odd
>viewwindows, they stay that way after that image, instead of being reset
>by the next par's"reset=" line.

I believe this feature was deliberately designed to permit viewing of a series
of fractals as thumbnails without having to redo the view setting for each
one.  I find this very useful when looking for an image whose name I can't
recall.  To reset the view to normal press <v> to enter the view menu then
press <F4> to reset the defaults.  Hope this helps.  Tom

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Date: Sun, 8 Mar 1998 07:53:11 -0500 (EST)
From: [e-mail] (Paul Derbyshire)
Subject: Re: (fractint) Viewwindows

Seems like there should be two different viewwindows then. A regular one
that is reset and one that works for thumbnails, which might instead be
invoked from the video modes, act like a video mode, and display say a
64x64 image at 1024x768...you choose the "real" video mode and the
resolution like view window.


- --
    .*.  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, 08 Mar 1998 07:10:42 -0600
From: Janet Preslar <[e-mail]>
Subject: Re: (fractint) Need help!

Sylvie Gallet wrote:

> Hi Janet,
>
>   Here is the solution:
>

Thanks Sylvie! I'm not sure how I lost those two parameters.

Janet


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Date: Sun, 8 Mar 1998 08:56:07 -0800 (PST)
From: "James R. McKenzie" <[e-mail]>
Subject: Re: (fractint) Viewwindows

- ---Paul Derbyshire <[e-mail]> wrote:
>
> >I've had the same problem.  On those "square" fractals that don't
take
> >up the entire screen.  After running one if I want to run a saved
> >image or another paramater I have to restart FRACTINT.
>
> Restart Fractint? I've never had to do that; manually turning view
windows
> off has always sufficed. Are you using version 19.6 or an earlier
version?
>

Paul,

I'm using FRACTINT 19.60.  By restart I meant hitting the <delete> not
literally shutting down and re-launching.  If I don't the images all
come up as squares versus full screen.  I've got over 50 meg of
fractals on my D:\ drive (That's where FRACTINT is), only a small part
are squares but they do look dang neat (IMHO they'd look better as
full screen), still when I run 'em it would be nice to be able to go
with anothe image without the re-start.


Oh well, hope this was useful info.

James R. McKenzie

a.k.a.

FIRSTNAME LASTNAME
_________________________________________________________
DO YOU YAHOO!?
Get your free @yahoo.com address at http://mail.yahoo.com


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Date: Sun, 8 Mar 1998 11:59:50 -0500 (EST)
From: [e-mail] (Michael Traynor)
Subject: Re: (fractint) Viewwindows

>>Bug in Fractint 19.6: the "reset=" in a parfile doesn't seem to kill a
>>viewwindow setting. If I go through a PAR and hit an image with odd
>>viewwindows, they stay that way after that image, instead of being reset
>>by the next par's"reset=" line.

While it does not directly address this (though it might if it was placed
in the pars), you can use fractint's fastrestore option, as described in
the list of new stuff for 19.6:

"Added command line option fastrestore=yes|no. Default is NO. When YES,
    causes viewwindows to be set to NO before each restore, so that
    otherwise normal gifs will not be drawn at the reduced aspect when
    viewwindows was previously set to YES; and bypasses the warning which
    is displayed when a restore is to be viewed in a video mode other than
    the one at which the gif was saved. Combined with askvideo=no, all
    restores will automatically be made at the user's default video mode.
    This feature will be helpful when cycling through a group of gifs in
    autokey mode."

You could put this in sstools.ini.

- --
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: Sun, 08 Mar 1998 09:19:51 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Viewwindows

Jim

The F4 trick works for me to......my steps are

1.  hit v to bring up the view screen
2. hit F4 to reset to the defaults
3.  hit enter and the screen starts to re-draw the image to whatever I have
in my sstools.ini file

Angela

>
>
>
>---Paul Derbyshire <[e-mail]> wrote:
>>
>> >I've had the same problem.  On those "square" fractals that don't
>take
>> >up the entire screen.  After running one if I want to run a saved
>> >image or another paramater I have to restart FRACTINT.
>>
>> Restart Fractint? I've never had to do that; manually turning view
>windows
>> off has always sufficed. Are you using version 19.6 or an earlier
>version?
>>
>
>Paul,
>
>I'm using FRACTINT 19.60.  By restart I meant hitting the <delete> not
>literally shutting down and re-launching.  If I don't the images all
>come up as squares versus full screen.  I've got over 50 meg of
>fractals on my D:\ drive (That's where FRACTINT is), only a small part
>are squares but they do look dang neat (IMHO they'd look better as
>full screen), still when I run 'em it would be nice to be able to go
>with anothe image without the re-start.
>
>
>Oh well, hope this was useful info.
>
>James R. McKenzie
>
>a.k.a.
>
>FIRSTNAME LASTNAME


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Date: Sun, 08 Mar 1998 09:39:39 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) anybody try simplgif?

I downloaded simplegif.zip and would like to try it but am....as
usual....clueless.  Is there documentation about what simplegif is and how
to use it somewhere? Basic questions:

1. what is simplegif's purpose?
2. what are the steps for use?
3. any warnings?

Angela

At 09:37 PM 3/4/98 -0600, you wrote:
>A while ago I mentioned that a new version of simplgif is available
>at:
>
>ftp://ftp.phoenix.net/pub/USERS/twegner/simplgif.zip
>
>This utility combines the images in multiple-image GIFs created with
>Fractint's "divide-and-conquer" mode.
>
>Just curious, is it bug free or have folks just not gotten around to
>trying it? I'll tell you a secret if you promise not to tell. If
>you add the -i option to the simplgif command line before the
>filename arguments, it will produce an interlaced file. But no,
>Fractint doesn't read interlaced files correctly yet <g!>
>
>Tim


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Date: Sun, 08 Mar 1998 12:37:42 -0800
From: Peter Jakubowicz <[e-mail]>
Subject: (fractint) Par

Opus #1            { ; Carmen Miranda Series
  reset=1960 type=formula formulafile=*.frm
  formulaname=3D_Balls_Mset passes=t
  center-mag=+0.36199809314334530/-0.07692876126871936/1.263339e+010
  params=0.01/1/16/8 float=y maxiter=8192 outside=summ periodicity=0
  colors=zzziHe<26>t3Ou2Nu3N<45>yr4ys3xs3<44>Xz0Wz0Wz0Wz0<60>IJ0II0II0II0<\
  30>PIRWXz<9>_Su_St_Rs_Rr`Qq<18>hHe
  }

frm:3D_Balls_Mset (ORIGIN) {; Copyright (c) Paul W. Carlson, 1997
    ;****************************************************
    ; Always use floating point math and outside=summ.
    ;
    ; Parameters:
    ;   real(p1) = a factor controlling the size of the balls
    ;   imag(p1) = number of iterations to skip
    ;   real(p2) = number of color ranges
    ;   imag(p2) = number of colors in each color range
    ;
    ; Note that the equation variable is w, not z.  Always
    ; initialize z to zero.
    ;****************************************************
    w = 0
    c = pixel
    z = 0
    bailout = 0
    iter = 0
    range_num = 0
    skip = imag(p1)
    ;****************************************************
    ; In the accompanying par file, mndballs.par,
    ; we have 8 color ranges with 30 colors in each range
    ; for a total of 240 colors. The first range starts at
    ; color 1.  Pixels will use color 0 when |w| >= 1000.
    ; Other values can be used here as long as the product
    ; of num_ranges times colors_in_range is less than 255.
    ; Color 0 is reserved for the background color and color
    ; 255 can be used for the inside color.
    ;****************************************************
    num_ranges = real(p2)
    colors_in_range = imag(p2)
    ;****************************************************
    ; Real(p1) controls the size of the balls.
    ; These values will usually be in the range 0.001 to 0.1
    ;****************************************************
    ball_size = real(p1)
    index_factor = (colors_in_range - 1) / ball_size:
    ;****************************************************
    ; The equation being iterated.  Almost any equation
    ; that can be express in terms of a complex variable
    ; and a complex constant will work with this method.
    ; This example uses the standard Mandelbrot set equation.
    ;****************************************************
    w = w * w + c
    ;****************************************************
    ; If the orbit point is within the specified distance of a circle,
    ; set z to the index into the colormap and set the bailout flag.
    ;****************************************************
    IF (iter > skip)
    wr = real(w), wi = imag(w)
    d = wr * wr + (wi - .5) * (wi - .5)
    IF (d < ball_size)
        bailout = 1
        delta = ball_size - d
    ELSEIF ((d = wr * wr + (wi + .5) * (wi + .5)) < ball_size)
        bailout = 1
        delta = ball_size - d
    ELSEIF ((d = (wr - .5) * (wr - .5) + wi * wi) < ball_size)
        bailout = 1
        delta = ball_size - d
    ELSEIF ((d = (wr + .5) * (wr + .5) + wi * wi) < ball_size)
        bailout = 1
        delta = ball_size - d
    ENDIF
    ENDIF
    IF (bailout)
    z = index_factor * delta + range_num * colors_in_range + 1
    ENDIF
    ;****************************************************
    ; Cycle through the range numbers (0 thru num_ranges - 1)
    ; With two color ranges, even iterations use color
    ; range 0, odd iterations use color range 1.
    ;****************************************************
    range_num = range_num + 1
    IF (range_num == num_ranges)
        range_num = 0
    ENDIF
    ;****************************************************
    ; Since we are using outside=summ, we have to subtract
    ; the number of iterations from z.
    ;****************************************************
    iter = iter + 1
    z = z - iter
    ;****************************************************
    ; Finally, we test for bailout
    ;****************************************************
    bailout == 0  && |w| < 1000
}




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Date: Sun, 8 Mar 1998 12:35:58 -0500
From: "Peter Gavin" <[e-mail]>
Subject: Re: (fractint) anybody try simplgif?

I've been trying to solve my disk-video-doesn't-work-in-batch-mode problem,
and I was just wondering if there was any way to override the default vid
mode for a restored image using view windows, or something.  The problem is,
I have a bunch of images I started in 1024x768 mode, and I want to resume
them in diskvideo mode so I can run them in the backround in win95.  I have
a batch file to do this, and which uses a dos for command to run through all
the images in the directory and finish them.  But fractint always uses the
graphics mode, not disk-video.  (I know I already asked this once, but I
thought maybe someone might have thought of something since.)

Pete


- -----Original Message-----
From: Wizzle <[e-mail]>
To: [e-mail] <[e-mail]>
Date: Sunday, March 08, 1998 12:27 PM
Subject: Re: (fractint) anybody try simplgif?


>I downloaded simplegif.zip and would like to try it but am....as
>usual....clueless.  Is there documentation about what simplegif is and how
>to use it somewhere? Basic questions:
>
>1. what is simplegif's purpose?
>2. what are the steps for use?
>3. any warnings?
>
>Angela
>
>At 09:37 PM 3/4/98 -0600, you wrote:
>>A while ago I mentioned that a new version of simplgif is available
>>at:
>>
>>ftp://ftp.phoenix.net/pub/USERS/twegner/simplgif.zip
>>
>>This utility combines the images in multiple-image GIFs created with
>>Fractint's "divide-and-conquer" mode.
>>
>>Just curious, is it bug free or have folks just not gotten around to
>>trying it? I'll tell you a secret if you promise not to tell. If
>>you add the -i option to the simplgif command line before the
>>filename arguments, it will produce an interlaced file. But no,
>>Fractint doesn't read interlaced files correctly yet <g!>
>>
>>Tim
>
>
>-
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Date: Sun, 8 Mar 1998 12:43:30 -0500
From: "Peter Gavin" <[e-mail]>
Subject: (fractint) disk-video prob's

Excuse the first message's subject... :)  This is the real one...

Pete


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Date: Sun, 08 Mar 1998 09:45:14 -0800
From: Mark Christenson <[e-mail]>
Subject: Re: (fractint) Viewwindows

At 11:59 AM 3/8/98 -0500, Michael Traynor wrote:
>While it does not directly address this (though it might if it was placed
>in the pars), you can use fractint's fastrestore option, as described in
>the list of new stuff for 19.6:
>
>"Added command line option
>  fastrestore=yes...
>  askvideo=no...

Thanks, Michael, it worked for me.  Oddly, though, askvideo behaves
differently in 19.3 and 19.6.  In 19.3, it does what one would like,
resets the viewwindow without complications, but in 19.6 an image
restored from gif is displayed in the current video mode (as opposed
to the mode it was saved in).  How Fractint performs this feat of magic
without regenerating the image I haven't a clue, but I'd rather it didn't.

For those having trouble with losing slices of images when returning
from option screens or editing the palette, textsafe=no should do the
trick.


Bud


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Date: Sun, 08 Mar 1998 12:20:09 -0600
From: Bob Margolis <[e-mail]>
Subject: Re: (fractint) anybody try simplgif?

Hi Angela & Team Fractals:

Wizzle wrote:
>
> I downloaded simplegif.zip and would like to try it but am....as
> usual....clueless.  Is there documentation about what simplegif is and how
> to use it somewhere? Basic questions:
>
> 1. what is simplegif's purpose?
> 2. what are the steps for use?
> 3. any warnings?
>

According to Fractal Creations (2nd Ed.) by the honorable Tim Wegner and
his trust companion, Bert Tyler, "SIMPLGIF...reads your multi-image GIF
file and uses it to generate a simple, single-image GIF called
SIMPLGIF.GIF...Be aware that this process can be used to generate *huge*
images, and huge images come with corresponding appetites for disk
space...Note that this program needs to create a temporary uncompressed
version of your final image as an intermediate step. In this case, you
really do need 4GB of free disk space for a 64K x 64K image--in addition
to the space taken up by FRACTMIG.GIF and SIMPLGIF.GIF. As a practical
matter, most users of the "divide and conquer" feature should limit
images to a "modest" 4K x 4K or 8K x 8K resolution (which are actually
pretty high resolutions!).

Bob Margolis

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Date: 08 Mar 1998 19:24:03 +0100
From: Brederlow <[e-mail]>
Subject: Re: (fractint) Aproximating the M-Set with geometrical shapes

Jay Hill <[e-mail]> writes:

> Rich Thomson wrote:
> >In article <[e-mail]> ,
>     "Jay Hill"<[e-mail]>  writes:
> >> and approximate formula for the rest.  Is this what you are trying to
> make?
> >>
> >> http://www.geocities.com/CapeCanaveral/Lab/3825/Hulahoop.gif
> >Interesting image Jay; what's its origin?
>
> >                                               Rich Thomson
> >                                               [e-mail]
> It is a by-product of the 1993 evaluate the area of the Mandelbrot craze.
> I can display points on boundaries of all (but one*) midgets up to
> period 16 and buds on each to much higher period. The accuracy is
> better than 12 digits, usually more like 16. We are talking about 430809
> components and some days of computing.  >:-(   Limits are basically
> the 80 bit floats on the Intel chips.  The particular image ( Hulahoop.gif)
> does not display all of these.

Could you post a list of the controllpoints for the boundaries?
Best make it a private mail or http/ftp-able, cause its probably
large.

May the Source be with you.
            Mrvn


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Date: Sun, 08 Mar 1998 12:25:19 -0600
From: Bob Margolis <[e-mail]>
Subject: Re: (fractint) Par

Peter Jakubowicz wrote:
>
> Opus #1            { ; Carmen Miranda Series

Not to be confused with the Opus Series of fractal images that I've been
designing for the past three years, currently part of the Fractal
Excursions show. 8-)

Bob Margolis

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End of fractint-digest V1 #125
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