From: owner-fractint-digest@lists.xmission.com (fractint-digest) To: fractint-digest@lists.xmission.com Subject: fractint-digest V1 #390 Reply-To: fractint-digest Sender: owner-fractint-digest@lists.xmission.com Errors-To: owner-fractint-digest@lists.xmission.com Precedence: bulk fractint-digest Friday, May 21 1999 Volume 01 : Number 390 ---------------------------------------------------------------------- Date: Tue, 18 May 1999 18:55:24 -0400 From: Lee Skinner Subject: (fractint) We haven't AL Bresslau, >> I know it's not a great difference, but it _is_ technically more eficient to use the guessing method. Am I right in supposing that you use= the 1 pass method because it's beautiful to see image _scrolling_ down th= e screen? << Any of the guessing methods will often guess wrong. Passes=3D1 is used t= o insure more accuracy in the rendering on an image, particularly for very chaotic images. Lee - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Tue, 18 May 1999 19:10:46 -0700 From: "Jay Hill" Subject: Re: (fractint) Choose yur picture before downloading the par. Deleting much header and footer :-) =20 I get a vision of clicking my way through a fractal mall where I=20 get messages like "Add to cart" and then finally I go to the=20 check out counter and to get my pars. The box boy says=20 "plastic or paper" ah er "email or download" and packs up=20 the pars into a single par file, then zips em up. Then I can=20 click to download (ftp like) or get it in email as an attachment.=20 I think I'm getting VONS and Amazon mixed up here - oh well, I read that Amazon just bought a grocery store. Jay - ---------- > From: Jack Baker > To: fractint@lists.xmission.com > Subject: Re: (fractint) Choose yur picture before downloading the par. > Date: Monday, May 17, 1999 8:42 PM >=20 > Pretty good idea, and it really would not be to hard to do. Just gotta= get=20 > the web space and time to get it done. Perhaps on a server like xoom.c= om???=20 > Anyway, a simple CGI would probably be fine, and all that would be=20 > necessary for the graphics would be a thumbnail. The user could downlo= ad=20 > any pars that they were intrigued by and view the larger graphic at the= ir=20 > leisure. Anybody out there want to jump on board here????? >=20 > -Jack >=20 >=20 >=20 > I just had an idea: > what if there where a site where you could see a preview of the pars yo= u > were going to download? Somethng like a thumbnail page with checkboxes = for > each picture. you like the picture, you check it. Then you post the for= m and > a par file with all the pars for the pics you checked is created specia= lly > for you. > This was the idea. I downloaded lots of huge par files with hundreds of > pictures without havin a hint to what they contained. My pars are reall= y a > mess and I don=B4t have time to process each of them to see what comes = up. > Maybe if I could download only what I wanted, I could still have a beau= tiful > collection of fractals without having the trouble to select them one by= one > after they were generated. > I don=B4t know nothing about web deisgn /programming, and I don=B4t kno= w if this > is a good idea. But if anybody likes it, please use it. > Bresslau >=20 >=20 - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Tue, 18 May 1999 21:18:39 -0600 From: Phil McRevis Subject: Re: (fractint) We haven't ALL gone to UF Solid guessing is good for sets that are "connected" (the M-set has been proved connected, but not necessarily locally connected, I believe). "Connected" has a specific mathematical meaning, but just think of it as the concept of the interior of the set being one single piece that can't be partitioned into multiple disjoint areas. There are julia sets that are "totally disconnected" meaning that they can be separated into an infinite collection of disjoint pieces. Solid guessing makes many mistakes when used to render a totally disconnected fractal. Solid guessing is an approximation; for connected sets like the classic M, the approximation is valid. For disconnected sets, the approximation will produce many errors in the rendering. (The solid guessing algorithm will conclude that a chunk of the image is a constant color, when in fact there is a little island of fractal hiding in the middle that was missed by solid guessing.) You can always compare passes=1 (or even passes=3, since passes=1,2,3 all result in the same picture, only the pixels are computed in a different sequence) to passes=g to see if there is any difference on your particular fractal. - -- Legalize Adulthood! ``Ain't it funny that they all fire the pistol, at the wrong end of the race?''--PDBT legalize@xmission.com - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Wed, 19 May 1999 10:30:44 +0200 From: "Randall Britten" Subject: RE: (fractint) We haven't ALL gone to UF Where can one obtain the proof that the M-set is connected? - ------------------------- Randall Britten - -----Original Message----- From: owner-fractint@lists.xmission.com [mailto:owner-fractint@lists.xmission.com] On Behalf Of Phil McRevis Sent: Wednesday 19 May 1999 05:19 To: fractint@lists.xmission.com Subject: Re: (fractint) We haven't ALL gone to UF Solid guessing is good for sets that are "connected" (the M-set has been proved connected, but not necessarily locally connected, I believe). "Connected" has a specific mathematical meaning, but just think of it as the concept of the interior of the set being one single piece that can't be partitioned into multiple disjoint areas. There are julia sets that are "totally disconnected" meaning that they can be separated into an infinite collection of disjoint pieces. Solid guessing makes many mistakes when used to render a totally disconnected fractal. Solid guessing is an approximation; for connected sets like the classic M, the approximation is valid. For disconnected sets, the approximation will produce many errors in the rendering. (The solid guessing algorithm will conclude that a chunk of the image is a constant color, when in fact there is a little island of fractal hiding in the middle that was missed by solid guessing.) You can always compare passes=1 (or even passes=3, since passes=1,2,3 all result in the same picture, only the pixels are computed in a different sequence) to passes=g to see if there is any difference on your particular fractal. - -- Legalize Adulthood! ``Ain't it funny that they all fire the pistol, at the wrong end of the race?''--PDBT legalize@xmission.com - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Wed, 19 May 1999 13:00:36 GMT From: "Andrew Coppin" Subject: (fractint) Fractal Noise So how does one actually *calculate* some fractal noise (with any exponent)? It sounds fasinating. - --------------------------------- Nam et ipsa scientia potestus est! (Sir Francis Bacon) Andrew Orphi Coppin DMU MK. - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Wed, 19 May 1999 11:47:26 -0600 From: Phil McRevis Subject: (fractint) Re: Connectedness of M In article <000801bea1d1$e4e2d3e0$e3021ac4@galilee.is.co.za>, "Randall Britten" writes: > Where can one obtain the proof that the M-set is connected? According to "Chaos and Fractals", by Peitgen, Jurgens and Saupe, pg. 849: "[...] the Mandelbrot set is connected. This is known since 1982 through a paper of Douady and Hubbard, in which they showed that the encirclement of the Mandelbrot set always generates domains which are bounded by circle-like curves. If the encirclement is properly manufactured it can be shown that the bounding curves are in fact equipotentials of the Mandelbrot set." The paper mentioned in that paragraph is given as A. Douady, J. H. Hubbard, "Iteration des polynomes quadratiques complexes", CRAS Paris 294 (1982) 123-126. All my other references quote the result from this paper and refer you to the paper fro the proof. - -- Legalize Adulthood! ``Ain't it funny that they all fire the pistol, at the wrong end of the race?''--PDBT legalize@xmission.com - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Tue, 18 May 1999 20:27:07 +0930 From: "Wayne Kiely" Subject: Re: (fractint) We haven't ALL gone to UF Tony, >... Some recent work. And nice work at that. I especially liked bm007 (the fractured chaotic edge) and cn002. Regards, Wayne - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 00:20:40 EDT From: RParracho@aol.com Subject: (fractint) quickie pars We haven't All...but its damn close isn't it? A couple pars and a couple formulas Im not a prolific par generator and more often than not I get hooked on the geometry or logic rather than the art but sometimes it just looks good. Tony Hanmer....BM007 was my favorite, looked great Edgy_infinity { ; (c) R Parracho May 05, 1999 t= 0:07:10.56 66mhz reset=1960 type=formula formulafile=rsp_may.frm formulaname=rsp_may002 passes=1 center-mag=0.618064/1.33263/11.44689 float=y logmap=14 periodicity=0 colors=000300700900<3>P30S40X60`70<3>qE0uF0zI0zK0zM0zP0zS0zU0zW0zZ0za0ze\ 0<2>zm0zp0zt0zv0zy0zv2zt4<2>zjAzgCzeEzaGzZIzWKzUMzSOzPQ<2>zIWuFY<2>iAcd8\ e`7gX6iS4k<3>D1s90u70w30y000000300700900<3>P30S40X60`70<3>qE0uF0zI0zK0zM\ 0zP0zS0zU0zW0zZ0za0ze0<2>zm0zp0zt0zv0zy2zv4zt6<2>zjCzgEzeGzaIzZKzWMzUOzS\ QzPS<2>zIYuF_<2>iAed8g`7iX6kS4m<3>D1u90w70y300000000300700900<3>P30S40X6\ 0`70<3>qE0uF0zI0zK0zM0zP0zS0zU0zW0zZ0za0ze0<2>zm0zp0zt0zv2zy4zv6zt8<2>zj\ EzgGzeIzaKzZMzWOzUQzSSzPU<2>zI_uFa<2>iAgd8i`7kX6mS4o<3>D1w90y70030000000\ 0300700900<3>P30S40X60`70<3>qE0uF0zI0zK0zM0zP0zS0zU0zW0zZ0za0ze0<2>zm0zp\ 0zt2zv4zy6zv8ztA<2>zjGzgIzeKzaMzZOzWQzUSzSUzPW<2>zIauFc<2>iAid8k`7mX6oS4\ q<3>D1y } rsp_modular { ; (c) R Parracho May 10, 1999 t= 0:01:27.61 66mhz reset=1960 type=formula formulafile=rsp_may.frm formulaname=rsp_may005 center-mag=-0.453568/0/0.6666667 params=7/0/5/0 float=y maxiter=256 inside=2 outside=summ periodicity=0 colors=000000<12>jvVLT`MaSZyR6PDa8qSJ55mTD9`SWo2s6bDrj0GMjxmivjfj6pufUJu\ icIpZXhSJpOveYBBJhaDTf`ssHPqxS2j34edF2On7bGZyybYD1V9vWSGoLa9P9ohGAKvnDMY\ 77Iz7FqhsKdVPZsBLuThIkAE6_G_WB915xV9LTS96G7AAzQ4Dg1SuPbeNxWVd7IenotvwotD\ bWv3Vx`LDJIG_GhTpy8`VBLs2MZFCTjLFh74fctO8QK2WUx0II9kLWn6`DUzOZXuiYh9zAta\ kf9i1DthXY_wSHEgE3g6nElMsci9hh7QqklDPb5zJPS16b94jXGShd03VeE19Q6EEJHPuq0F\ QWntah4etJBwPzlSJHDcYRMRbycCp5FrcXfUEhYqV1VW9P`u87iuCwRTqQuWUSIHk75gFl53\ INF2F1zrjqmlO5pgfJ8F67fsZv5Qv2Gf6xSSx1Xiu9T6P18ZtHKJzFx5mbf``eZ7fU8d`Zgs\ RejoWtpSI0XaRyeIIqu4UpYnn_MXPl3j52go0sUkb8k2fUJtmHootfi7It7zfp7hcvK1A7`u\ fK3X3tRL5ZRg7McUs7TxhuRDszeLHlgKGETxnQZzyLkdR2oHOrRMl9Wbatjca0LO7WzGF9EH\ EHrZ6qnvZp229gtO_JbrSy2V3ofKbIyab2kKQz7rDdKw6h8r`pJu4oM5qn_3FyKNvHUre`IT\ 6zKywMiWPBofkglYH9fNNNm } serps_mand1 { ; (c) R Parracho May 13, 1999 t= 0:04:41.22 66mhz reset=1960 type=formula formulafile=rsp_may.frm formulaname=rsp_may007 passes=1 center-mag=-0.983412/0.3238/13.33333 params=8/0/4/0 float=y inside=2 periodicity=0 colors=000000<7>hPU<6>xdi<8>7ST<6>69W<2>NPVTVUZ`TdfTjlSprRvxQ<27>gQWfOXg\ OchOjiPq<13>cpvbswcrw<13>sYwuWxuWw<13>yY`zZZzZZ<13>zVgzUhxVi<13>XpxVrzUr\ w<14>0d8<15>eHuhFyhFy<28>wOgxPfxPd<15>oL0<13>iVuhWziTz<3>oGypGypHz } web_spinner { ; (c) R Parracho May 13, 1999 t= 0:03:48.60 66mhz reset=1960 type=formula formulafile=rsp_may.frm formulaname=rsp_may008 center-mag=+0.33521126760563420/+0.05198329853862181/98.03922 params=2/0/4/0 float=y inside=2 periodicity=0 colors=000000<12>jvV<4>yyb<6>j0G<10>BBJ<16>Kyw<17>7hc1SuPbeNxWVd7Ienotvw\ otDbWv3Vx`LDJIG_GhTpy8`VBLs2MZFCTjLFh74fctO8QK2WUx0II9kLWn6`DUzOZXuiYh9z\ Atakf9i1DthXY_wSHEgE3g6nElMsci9hh7QqklDPb5zJPS16b94jXGShd03VeE19Q6EEJHPu\ q0FQWntah4etJBwPzlSJHDcYRMRbycCp5FrcXfUEhYqV1VW9P`u87iuCwRTqQuWUSIHk75gF\ l53INF2F1zrjqmlO5pgfJ8F67fsZv5Qv2Gf6xSSx1Xiu9T6P18ZtHKJzFx5mbf``eZ7fU8d`\ ZgsRejoWtpSI0XaRyeIIqu4UpYnn_MXPl3j52go0sUkb8k2fUJtmHootfi7It7zfp7hcvK1A\ 7`ufK3X3tRL5ZRg7McUs7TxhuRDszeLHlgKGETxnQZzyLkdR2oHOrRMl9Wbatjca0LO7WzGF\ 9EHEHrZ6qnvZp229gtO_JbrSy2V3ofKbIyab2kKQz7rDdKw6h8r`pJu4oM5qn_3FyKNvHUre\ `IT6zKywMiWPBofkglYH9fNNNm } rsp_mandradius { ; (c) R Parracho May 19, 1999 t= 0:13:56.90 66mhz reset=1960 type=formula formulafile=rsp_may.frm formulaname=rsp_may011 passes=1 center-mag=-0.613881/0/0.6666667 params=0.25/0 float=y maxiter=256 periodicity=0 colors=000000<7>hPU<6>xdi<8>7ST<6>69W<2>NPVTVUZ`TdfTjlSprRvxQ<27>gQWfOXg\ OchOjiPq<13>cpvbswcrw<13>sYwuWxuWw<13>yY`zZZzZZ<13>zVgzUhxVi<13>XpxVrzUr\ w<14>0d8<15>eHuhFyhFy<28>wOgxPfxPd<15>oL0<13>iVuhWziTz<3>oGypGypHz } rsp_juliradius { ; (c) R Parracho May 19, 1999 t= 0:03:44.04 66mhz reset=1960 type=formula formulafile=rsp_may.frm formulaname=rsp_may012 center-mag=0/0/0.6666667 params=0.15/0/-0.768/0.13 float=y maxiter=256 periodicity=0 colors=000000<7>hPU<6>xdi<8>7ST<6>69W<2>NPVTVUZ`TdfTjlSprRvxQ<27>gQWfOXg\ OchOjiPq<13>cpvbswcrw<13>sYwuWxuWw<13>yY`zZZzZZ<13>zVgzUhxVi<13>XpxVrzUr\ w<14>0d8<15>eHuhFyhFy<28>wOgxPfxPd<15>oL0<13>iVuhWziTz<3>oGypGypHz } rsp_mandradiusz { ; (c) R Parracho May 19, 1999 t= 1:15:32.28 66mhz reset=1960 type=formula formulafile=rsp_may.frm formulaname=rsp_may011 passes=1 center-mag=0.105572/0.571056/5.464481 params=0.25/0 float=y maxiter=256 periodicity=0 colors=000000<7>hPU<6>xdi<8>7ST<6>69W<2>NPVTVUZ`TdfTjlSprRvxQ<27>gQWfOXg\ OchOjiPq<13>cpvbswcrw<13>sYwuWxuWw<13>yY`zZZzZZ<13>zVgzUhxVi<13>XpxVrzUr\ w<14>0d8<15>eHuhFyhFy<28>wOgxPfxPd<15>oL0<13>iVuhWziTz<3>oGypGypHz } frm:rsp_may002{ z=10*pixel a=z, an=1, n=i=0, : i=i+.5, n=a-i, an=an*n/(z^n), oz=z, z=1+z+an |z-oz|>.00001 } frm:rsp_may005 { z=w=c=pixel, n=p1, : w=w*w+c, z=(w-floor(w))*n |w|n } frm:rsp_may008 { z=w=pixel, c=pixel, n=p1, : z=z*z+c, w=(z/n-floor(z/n))*n |z|n } frm:rsp_may011(xaxis){ n=a=b=c=d=e=f=g=f0=f1=0 u=pixel, z=0, cc=pixel : n=n+1 u=u*u+cc, a0=real(u), a1=imag(u), v=u*u+cc, b0=real(v), b1=imag(v), w=v*v+cc, c0=real(w), c1=imag(w), a=b0-a0, b=b1-a1, c=c0-a0, d=c1-a1 e=a*(a0+b0) + b*(a1+b1), f=c*(a0+c0) + d*(a1+c1), g=2*(a*(c1-b1)-b*(c0-b0)), f0=(d*e-b*g)/f, f1=(a*g-c*e)/f, r2=sqrt((a0-f0)*(a0-f0)+(a1-f1)*(a1-f1)), z=ceil(cabs(v-u)+cabs(w-v)), count=n (|z|>=|r2*p1|) || (count>257) } rsp_may012{ n=a=b=c=d=e=f=g=f0=f1=0 u=pixel, z=0, cc=p2 : n=n+1 u=u*u+cc, a0=real(u), a1=imag(u), v=u*u+cc, b0=real(v), b1=imag(v), w=v*v+cc, c0=real(w), c1=imag(w), a=b0-a0, b=b1-a1, c=c0-a0, d=c1-a1 e=a*(a0+b0) + b*(a1+b1), f=c*(a0+c0) + d*(a1+c1), g=2*(a*(c1-b1)-b*(c0-b0)) f0=(d*e-b*g)/f, f1=(a*g-c*e)/f r2=sqrt((a0-f0)*(a0-f0)+(a1-f1)*(a1-f1)), z=ceil(cabs(v-u)+cabs(w-v)), count=n (|z|>=|r2*p1|) || (count>257) } - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 12:07:42 -0600 From: Phil McRevis Subject: Re: (fractint) quickie pars In article , RParracho@aol.com writes: > We haven't All...but its damn close isn't it? I haven't even taken time to download UF because I'm working on extending fractint by getting rid of the "medium" memory model and adding a porting interface that makes it easier to port fractint to some other system like a Mac or BeOS. Lots of people who were in a position to contribute something to fractint were put off by all the restrictions of working in a 640K overlaid medium-memory model. The code itself goes through many contortions and backflips just to fit into this 8088 style model of programming. The next evolution of fractint will leave 8088/80286 machines behind but will provide a significantly easier environment for casual programmers to add new features. - -- Legalize Adulthood! ``Ain't it funny that they all fire the pistol, at the wrong end of the race?''--PDBT legalize@xmission.com - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 15:17:34 -0500 From: "Allison, Joshua" Subject: (fractint) Fractint on NT Has anyone had any experience with fractint on NT? Joshua - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 14:42:41 -0600 From: Phil McRevis Subject: Re: (fractint) Fractint on NT In article <87489CB8E072D211926A0008C7A47740010D3B@estutes1.twc.com>, "Allison, Joshua" writes: > Has anyone had any experience with fractint on NT? Some people have reported success; others have reported problems. Expect fractint to evolve soon (not the next release, but maybe the release after that) into a native Win32 client where these problems of DOS compatability disappear. - -- Legalize Adulthood! ``Ain't it funny that they all fire the pistol, at the wrong end of the race?''--PDBT legalize@xmission.com - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 18:34:36 EDT From: RParracho@aol.com Subject: Re: (fractint) quickie pars I know the new version of fractint is in the oven...and i'm sure UF has put a lot of pressure on its (fractint's) development. To be honest I think fractint is excellent. All of fractints' bells and whistles still turn me on. I don't make money or consider my self an artist or a mathematician just a frequent weekend fragler...all best regards, Rui - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 16:56:21 -0600 From: Phil McRevis Subject: Re: (fractint) quickie pars In article , RParracho@aol.com writes: > ...and i'm sure UF has put a > lot of pressure on its (fractint's) development. My impetus for extending fractint doesn't have anything to do with "pressure" from UF. I have written my own fractal software in the past, mostly to test out little tricks for isolated images -- see where I wrote my own software to compute the hue and texture colorings of M. I had considered doing an UF-like thing whereby I wrote my own fractal imaging app from the ground-up. However, every time I considered doing that it always stuck in my craw that I'd be reinventing everything fractint already had. In the end, I decided it would be better for me and the fractal community at large if I extended fractint rather than reinvent the wheel. My investigations into fractint source code quickly revealed that I wouldn't be able to add any of my whizz-bang ideas to fractint until a stake was driven into the heart of the medium memory model first. I was hoping someone else would do this, but noone waved their hands and said "I'll do this!". Sure, everyone wants to do a Win32 "port" but noone wants to deal with the realities of such a port: medium memory model must go. This is a rather unglamorous, extensive and tedious programming task that doesn't have the ego-salve of glory that most people seem to want. So rather than contribute back to the fractint community, they lurk on the sidelines or reinvent the wheel to build a shrine to their own ego. Does anyone here truly have any idea how huge fractint is? In source code its about 137,700 lines of source code comprising about 500K of storage. When printed out double sided it amounts to a 6 inch thick printout -- not including the help file sources. Its a minor miracle of software engineering that it still runs on an 8088 with 640K of memory. This is, of course, my opinion and not any "official" statement on behalf of fractint developers. If you were offended by what I said, then I must have said something important. :-) - -- Legalize Adulthood! ``Ain't it funny that they all fire the pistol, at the wrong end of the race?''--PDBT legalize@xmission.com - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 19:52:35 EDT From: RParracho@aol.com Subject: Re: (fractint) quickie pars In a message dated 5/20/99 6:59:02 PM Eastern Daylight Time, legalize@xmission.com writes: > If you were offended by what I said, > then I must have said something important. :-) I wasn't offended, nor did I mean to offend. In anyway am I minimizing the grand accomplishment that fractint is and will continue to be. Regards, Rui - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 20:51:13 -0500 From: "David J. Dollevoet" Subject: (fractint) Pars This is a multi-part message in MIME format. - --------------2BE859CBD5174A596C5B1627 Content-Type: multipart/alternative; boundary="------------2D855D714AD3C03C7347996E" - --------------2D855D714AD3C03C7347996E Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Here are some julia(fn||fn) and lambda(fn||fn) pars. Some use a bailout value much lower than the default value of 64. - --------------2D855D714AD3C03C7347996E Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Here are some julia(fn||fn) and lambda(fn||fn) pars.  Some use a bailout value much lower than the default value of 64. - --------------2D855D714AD3C03C7347996E-- - --------------2BE859CBD5174A596C5B1627 Content-Type: application/x-unknown-content-type-PAR_auto_file; name="990520c.PAR" Content-Transfer-Encoding: base64 Content-Disposition: inline; filename="990520c.PAR" RkFKMDEgICAgICAgICAgICAgIHsgOyAoYykgRGF2aWQgSi4gRG9sbGV2b2V0IDE5OTcgICBq dWxpYShmbnx8Zm4pDQogIHJlc2V0PTE5NjAgdHlwZT1qdWxpYShmbnx8Zm4pIGZ1bmN0aW9u PWlkZW50L2V4cCBwYXNzZXM9Mg0KICBjZW50ZXItbWFnPSswLjI3NTk1MjUyOTg1ODI2Mzgw LysxLjQ4MTE0OTMwNTM3NDU3MDAwLzEuNTg2NTM4DQogIHBhcmFtcz0wLjE0ODYzMjEzNTY5 NjAyMzYvMC4xNzQ4NzI2NTI0OTAwMjA3LzEgZmxvYXQ9eSBtYXhpdGVyPTQ4DQogIGJhaWxv dXQ9NjQgaW5zaWRlPTAgcGVyaW9kaWNpdHk9MA0KICBjb2xvcnM9MDAwaE1oPDQ+MGdhPDI+ 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b0prdUVnekFkejVhdTFabzBWajwyPkRNVklJUE1HSzxcDQogIDI+WlAzY1QwPDQ+eWhSdWtX PDQ+WlZ3PDI+TU1mSUlhREdXOUpSNE1NPDQ+eVpPeV9HemE4PDc+cXcyPDI+enowd3oyc3k0 cFwNCiAgeDc8OT5WT2s8Mj5gVXI8Mj5mRHo8Mz5WZmk8OD40eDcwejA8Nj5OejA8NT56ejA8 OD56MDB6MzN5Nzd3Q0I8Mz5wTmY8NT5hXA0KICB6dVh3dVJ0dDw0PmVlZTwyPkxMTA0KICB9 DQoNCg== - --------------2BE859CBD5174A596C5B1627-- - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Thu, 20 May 1999 22:27:46 -0500 From: Bob Margolis Subject: (fractint) Some Useful Fractal Links http://archives.math.utk.edu/topics/fractals.html Submitted by Bob Margolis. - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Fri, 21 May 1999 11:35:10 +0200 From: "Randall Britten" Subject: RE: (fractint) Fractal Noise I was reading Martin Gardner's book "Fractal Music, Hypercards and More" and the chapter on Fractal Music describes 1/f signals in layman's terms quite nicely. Having an intuitive understanding of how one can create a 1/f signal, and where they occur naturally is also worthwhile, so I will try and explain what I learnt. To start with, 1/f signals are contrasted with "white noise" and "brown noise" White noise is the typical hissing you hear if your radio receiving on a frequency that no one is transmitting on. To generate a white noise signal with dice would simply be a matter of having say 3 dice, and throwing all three and totalling their scores at each throw. The possible range would be from 3 to 18, but 3's and 18's would be rare compared to 10's and 11's, in fact on average the throw would be 10.5. The popularity of the various scores is a "bell curve"/ normally distributed. The sequence is a white noise signal, and example would be 8, 12, 15, 4, 17, 11, etc. (The sequence can be shifted to be 'symmetrical' about 0 by subtracting 10.5 from each value.) Brown (for Brownian) noise is obtained by renumbering one dice as follows -2.5, -1.5, -0.5, 0.5, 1.5, 2.5 Now, start on 0. To get the next value in the sequence throw the dice and add it to the previous value. This is like a "random walk", and the motion of microscopic particles in solutions is "brownian". Now, white noise is always totally random, and the signal never "correlates" with itself. I.e. take a splice of the signal and compare it with all other parts of the signal and there is always no correlation, no matter which splice you start with and which other part you compare it to. This is a "power function" which is 1 for a phase shift of 0 (i.e. the signal only compares to itself exactly), and 0 everywhere else. Gardner says this is a 1/f^0 signal. A brown signal is a 1/f^2 signal (I have no idea why), so midway between them is 1/f noise. Now, my point was to show how to use dice to generate a 1/f signal, since knowing that its power function is 1/f doesn't really help intuitively (at first anyway). My approach is as follows: similar to the way the dice was numbered for brown noise, number each of three dice -2.5, -1.5, -0.5, 0.5, 1.5, 2.5 Start with 0. For each subsequent value of the sequence, throw and total all three dice, but divide by three and add to the previous value. It is similar to brown noise. In both brown and 1/f, the next value depends on the previous value + some random value. But in a brown signal, this random value is "uniformly distributed", whereas in a 1/f signal this random value is "normally distributed" (i.e. bell curve). Where do 1/f signals arise naturally? Almost everywhere in nature, and in real life: the levels of a river, the price of a stock market share, the density of the traffic etc. The general rule is anything that that behaves almost randomly, but depends on its previous state. The next sample will vary from the previous sample by some normally distributed random value. The chances of a smaller variation from the previous value are higher than the chances of a larger variation. Melodic music is 1/f in that the next note differs from the previous note usually by a small number of tones, but sometimes by a larger difference. Also the note durations are like a 1/f signal. Martin argues that we enjoy melodic music because it is like our everyday experience in life which is full of 1/f signals. (Note, the process I have described for generating a 1/f signal is different from Gardner's simpler version which he states only generates an approximately 1/f signal. Also, the white signal process I described could have been "normalised with the others" by subtracting 10.5 and dividing by 3). Hope that helps. - ------------------------- Randall Britten - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Fri, 21 May 1999 13:39:23 +0200 From: Guy Marson Subject: Re: (fractint) Some Useful Fractal Links At 22:27 20.05.1999 -0500, you wrote: >http://archives.math.utk.edu/topics/fractals.html > >Submitted by Bob Margolis. > Thanks Bob, very useful!!! Guy Guy Marson 45b, rue de Bettembourg L-5810 Hesperange (Luxembourg, Europe) - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Fri, 21 May 1999 09:42:51 -0300 From: "Fliguer, Miguel" Subject: RE: (fractint) Fractint on NT I got Fractint 19.6 working at SF5 (640x480x256) on a Vectra VE (Pentium II 300 MHz) under NT 4.0 WS The video hardware is on the motherboard and reports itself as Integrated SiS 6205. SF5 is the best I could get (some people on this list were amazed I could use a VESA mode under NT) Good luck Miguel Fliguer - Buenos Aires, Argentina Franktal Gallery http://members.xoom.com/fliguer/franktal.html - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ Date: Fri, 21 May 1999 10:29:16 -0400 From: Barry N Merenoff <110144.2274@compuserve.com> Subject: (fractint) Re: 1/f Noise Two questions: In music with a "strong beat," is the frequency of the rhythm an exceptio= n to the 1/f scaling? I don't understand how the algorithm presented for 1/f noise could work. Can you point me to a proof, or if it's an approximation, can you tell me= the exact version? (I am not intimidated by math, and I am somewhat familiar with Fourier Series, Taylor Series, and operators. So don't be afraid to get technical.) - -------------------------------------------------------------- Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@lists.xmission.com Get Commands: majordomo@lists.xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint" ------------------------------ End of fractint-digest V1 #390 ******************************