From: owner-fractint-digest@lists.xmission.com (fractint-digest) To: fractint-digest@lists.xmission.com Subject: fractint-digest V1 #148 Reply-To: fractint-digest Sender: owner-fractint-digest@lists.xmission.com Errors-To: owner-fractint-digest@lists.xmission.com Precedence: bulk fractint-digest Monday, March 30 1998 Volume 01 : Number 148 ---------------------------------------------------------------------- Date: Sat, 28 Mar 1998 23:37:14 -0600 From: "Justin A. Kolodziej" <4wg7kolodzie@vms.csd.mu.edu> Subject: Re: (fractint) 640K Paul Derbyshire wrote: > > Fractint 19 will run in 640K won't it? I heard it runs on even old 286's > without any extended memory at all... Well, the old 286 part is right, though when I tried it "just for kicks" I had 1 meg in mine :-). Can't remember if I had it set to expanded or extended, though. Does Fractint prefer one over the other? Justin K. - -- I sense a great disturbance in the Source. Justin A. Kolodziej I am 4wg7kolodzie@vms.csd.mu.edu Marquette University is http://www.mu.edu - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 00:54:34 -0500 (EST) From: ao950@freenet.carleton.ca (Paul Derbyshire) Subject: Re: (fractint) how 'bout a deep-zoom contest > >>> is anyone interested in an M-set deep-zoom contest? > > NO, PLEASE! Not deep-zooms!!! I don't want to tie up my computer with >those - generally boring - images, and I don't want to download them (my >phone bill is already way too high...). Since the list dopesn't allow binaries, they'd be submitted by some other method... a.b.p.f or maybe FTP to someplace someone sets up for the purpose. (The latter, preferably, since my newsfeed doesn't pick up a.b.p.f.) - -- .*. 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 ao950@freenet.carleton.ca pgd73@hotmail.com - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 00:33:25 -0600 From: Felix Subject: Re: (fractint) Xfract rpms Damien M. Jones wrote: > RPM = Red Hat Package Manager, a method for distributing files to be > installed on UNIX systems. RPM ships with Red Hat Linux, which you can buy > or download. Generally I find it much easier to download and install an > RPM with pre-compiled binaries than to download, install, compile, and > troubleshoot source code. :) > Exactly. Sorry for the confusion, but I thought someone who didn't know what they were wouldn't know where they were either. Spanky only has the gzipped versions, but install/uninstall and upgrading is so much easier with RPM... I've found a few packages here and there, but not the latest (3.04) version. So does anyone know? thanks --Andrew - -- | Andrew Duhan | Cereal is | | aduhan@ttu.edu | g00d. | | http://chimera.acs.ttu.edu/~aduhan/ | - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 02:24:35 -0500 From: "Peter Gavin" Subject: Re: (fractint) deep-zoom contest Hmm... this calls for a C++ arbitrary-precision-floating-point-variable-encapsulator class... - -----Original Message----- From: Paul Derbyshire To: fractint@lists.xmission.com Date: Sunday, March 29, 1998 12:53 AM Subject: Re: (fractint) deep-zoom contest | |Hate to burst your bubble Pete, but Fractint won't deepzoom a formula |fractal >:( | [snip] Pete - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 11:44:29 +0100 From: "Les St Clair" Subject: Re: (fractint) par archive (was: gravijul) Lav, >Thanx Les!! That saved me a TON of time.< You're welcome! BTW, a useful search word for dragging pars out of the Fractint archive is "reset=" This takes you nicely from par to par. cheers, Les - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 07:17:51 -0500 From: Sylvie Gallet Subject: (fractint) formula trouble, pars Hi Bud, >> Looks like you'll need to re-publish, but please name the repaired >> formula as an alternate (*a, *1, or something) to spare those who >> got sucker-punched along with you. I won't need to re-publish, gravijul-v3 works fine. The bug appears on= ly if z is initialized to 0. >> Question to the Fractint gods: could you please document the problem >> so that we can reconstruct the error to preserve the old formulas >> after the fix is implemented? Try the following formula: MandelMaxm { ; generalized z^n by Bud 3/27/98 ; probably been done before... ; defaults: p1 =3D (2,0) p2 =3D (0,0) p3 =3D (4,0) if (p1 =3D=3D 2) z =3D p2 else if (p2 || flip(p2)) z =3D p2 else z =3D 1 endif endif c =3D pixel: z =3D z^p1 + c |z| < p3 } - Sylvie - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 03:03:52 -0500 From: Theran Cochran Subject: Re: (fractint) Xfract rpms > From: Rich Thomson > Subject: Re: (fractint) Xfract rpms > > In article <351BBDE2.8FF22DDE@ttu.edu> , > Felix writes: > > Where can I get the latest XFractint RPM? > > Well maybe if you explained what an "RPM" is someone might be able to > answer your question. You can download xfractint source code from > RPM stands for Redhat Package somethingorother (Module?). It is a way to distribute and install software used on Linux systems, most notably the Redhat distribution of Linux. I use Debian myself, which has its own format in additon to RPM. So basically, he is asking for the compiled binaries for XFractint ready to install. Anyhow, I say that he should just get the source and compile it using make. I've been thinking of getting xfractint myself and adding some PNG support with PNGLIB. PNG is #1 on my wish list for fractint. It gives better compression (sure, not always by much, but sometimes a whole lot), doesn't have all those patent troubles, it could do 16 bit fractals without another file format, most good paint programs can read it by now, POV-Ray supports it, and it has a nice sounding name. But I digress... - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 10:28:03 -0500 From: "Jason Hine" Subject: Re: (fractint) how 'bout a deep-zoom contest Peter comments: >informal sounds great. i wld be willing to maintain the current deepest >zoom images on my geocities page and provide info, which I and hopefully >others, wld contribute, on why such and such an image is interesting, or >how Fractint does what it does and how it might do it better, sort of like >the Deep Zooming page at Spanky. Sounds great to me... I'm less interested in seeing a contest happen as I am in seeing interest generated for exploration of the depths of the Mset. Laters, Jason - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 07:46:11 -0800 From: Mark Christenson Subject: Re: (fractint) formula trouble, pars At 07:17 AM 3/29/98 -0500, Sylvie wrote: > Try the following formula: > >MandelMaxm { ; generalized z^n by Bud 3/27/98 >; probably been done before... >; defaults: p1 = (2,0) p2 = (0,0) p3 = (4,0) (new section) > if (p1 == 2) > z = p2 > else > if (p2 || flip(p2)) > z = p2 > else > z = 1 > endif > endif (end new section) > c = pixel: > z = z^p1 + c > |z| < p3 > } Impressive! How did you figure *that* out? Have you wrestled that bear before? Bud - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 10:53:08 -0800 From: Peter Jakubowicz Subject: (fractint) sci.fractals Just curious: there is talk on sci.fractals of moderating that list (the guy who wrote the FAQ has offered to do it but wants two co-moderators) because of the insane SPAM. Wld people be more likely to post? Or wld it just kill the list for good? Does anyone care? - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 10:22:13 From: "Lavondyss" Subject: Re: (fractint) par archive (was: gravijul) On Sun, 29 Mar 1998 11:44:29 +0100, fractint@lists.xmission.com wrote... > >Lav, > >>Thanx Les!! That saved me a TON of time.< > > >You're welcome! > >BTW, a useful search word for dragging pars out of the Fractint archive is >"reset=" >This takes you nicely from par to par. > >cheers, Les > > Sounds cool. I'll try that next time. - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 12:53:32 -0600 From: "Justin A. Kolodziej" <4wg7kolodzie@vms.csd.mu.edu> Subject: Re: (fractint) formula trouble Mark Christenson wrote: > > I have been playing around with another flexible formula, and have > encountered a problem. This works fine for the z^2 case, but breaks > down; try p1=3, 4, etc. to see what I mean. > > Another question/observation: the imaginary component of "bailout" > has no effect (not that I would expect any for a magnitude comparison) (?) > > Bud > > MandelMax { ; generalized z^n by Bud 3/27/98 > ; probably been done before... > ; defaults: p1 = (2,0) p2 = (0,0) p3 = (4,0) > z = p2, c = pixel: > > z = z^p1 + c > |z| < p3 > } I thought this kind of thing was already covered in the "manzpower" built-in formula. Why write another one? No insult/malevolence intended. Nevertheless, a bug's a bug. Justin K. - -- I sense a great disturbance in the Source. Justin A. Kolodziej I am 4wg7kolodzie@vms.csd.mu.edu Marquette University is http://www.mu.edu - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 11:45:43 -0800 From: Mark Christenson Subject: Re: (fractint) formula trouble At 12:53 PM 3/29/98 -0600, Justin wrote: >I thought this kind of thing was already covered in the "manzpower" built-in >formula. Why write another one? Thanks. And with the different bailout options, it's even more fun! Bud - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 15:10:31 -0500 From: Sylvie Gallet Subject: Re: (fractint) formula trouble, pars >> Impressive! How did you figure *that* out? Have you wrestled that >> bear before? I was suspecting a problem with the initial value of z and I tried various non-zero values for p2. In fact, the original formula works fine= only when p1 =3D=3D (2,0) i.e. when the fast parser optimizer uses LodSqr= instead of LodRealPwr. BTW, the first test should be: if (p1 =3D=3D 2 && flip(p1) =3D=3D 0) - Sylvie - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 21:22:14 +0100 From: Michael Bell Subject: Re: (fractint) how 'bout a deep-zoom contest Jason Hine wrote: > > I like this idea very much. There needs to be some artistic-ness involved to > keep the contest from just being a technology contest.... and yeah, images > should probably be sent as GIFs. Other thoughts: use a standard image > resolution and colormap? For those who don't know, I've got a little hiccup of > a program called Deeper available at my website that does a good job of zooming > deeply quickly, without losing sight of areas with mini-Msets in it. Deeper can > be found at < http://boralf.agsci.colostate.edu/~jason >... let's do this > contest! > > Cheers, Jason Interesting program - I got to 55 digits precision in 3 or 4 hours. I think that producing some deepzoomed images of the M-set could be nice, but I agree that it shouldn't be just "whoever has the most processing power wins". Michael. - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 15:52:20 -0500 From: davides Subject: Re: (fractint) sci.fractals At 10:53 AM 3/29/98 -0800, you wrote: >Just curious: there is talk on sci.fractals of moderating that list (the >guy who wrote the FAQ has offered to do it but wants two co-moderators) >because of the insane SPAM. Wld people be more likely to post? Or wld it >just kill the list for good? Does anyone care? I used to check in on that group every once in a while, and it used to be very interesting. The spam business....yeah, I care. davides@pipeline.com Back up my hard drive? How do I put it in reverse? - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 14:07:58 -0800 From: "Jay Hill" Subject: Re: (fractint) sci.fractals, deep zoom contest.... Hi guys, I read sci.fractals regularly but I'll not post there until the SPAM issue is really solved. And I mean the SPAM email. I used to post there a lot. It is where in the good old days one could run something like the Grand Internet Parallel Processing Project. The closest things to that now is GIMPS (looking for new largest prime numbers) which are run from lists. When I see a question posted that I can help with I reply to the author. I consider this email list the replacement of sci.fractals. If we can keep posts on topic it will not go the way of sci.fractals. About a deep zoom contest and raw processing power. The current record holder is a midget on the spike. There is nothing imaginative about that. These midgets are sitting ducks, easy to get to compared to others off the real line. This is because the contours practically aim right at them. I posted a deep zoom several years ago (before Fractint had deep zoom) on the filament in the upper left of the 3-bud. It took special methods to find. Even though it was a 'shallow' zoom, 10 ^ 40 something, it was interesting and at least one person asked if he could post it on his page. It and other midgets on the 'thin' filaments are the easiest to compute since the iteration counts are lowest near the outer edges of M. And if you choose the 'correct' sequence of branches at the Misiurewicz points you can get some nice branching symmetries. The really pretty filament patterns occur in closer where iteration counts are much too high for deep zooming. If you want 10^1000 magnification down in seahorse cajon, you would have to zoom very near the tip of one of the structures. Midget/filament images at the tips tend to have a certain look to them - very radial patterns. Anything else will require high resolution images with very high iteration counts. These take a long time to compute and have multiple wraps of the limited color palette. To avoid these two problems requires new formula and advanced coloring methods. Unfortunately, arbitrary precision arithmetic is only available for the standard MSet formula. But then again, I could be surprised. For those of you who like to search for midgets in the shallower zooms (near the limits of float), I have posted thousands of them (pars only) on my web site. These are useful for admiring the variety of filament patterns and saving some time getting to them. Jay http://home.san.rr.com/jayrhill/MSet/Midget.html - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 23:44:54 +0100 From: Ray Girvan Subject: (fractint) Secant ye shall find... This probably isn't new, but here are a few PARs based on the secant method (in this case, for finding the roots of z^5-1=0). These ideas were inspired by discussion with Yoshitoshi Araki, who has done some very nice C++ coded Newton and Halley's method fractals (see http://www.sf.airnet.ne.jp/josh) and has just moved to Fractint. As the secant method requires two seed values, there's great scope for modifying the shape and texture via the input seeds: vanilla Newtons; Newton 'islands'; complex curling webs; and spiky biomorphs. To give extra variables to tweak, I've also added a relaxation factor (as in Chris Green's Newton work) and a mid-iteration function Ray === SECANT.PAR === cut here =========== frm:SECANT1{; Ray Girvan, March 1998 ; secant method for roots of f(z)=0 ; z^5-1=0 ; z_n+1 = z_n - f(z_n)*(z_n - z_n-1)/(f(z_n) - f(z_n-1)) ; needs two seed values z0, z1 ; Newton-like images, perturbed by choice of z1, ; a relaxation factor p2, and a function fn2 ; inside the iteration loop z=pixel, z0=(0,0), z1=fn1(z)+p1: f0=z0*z0*z0*z0*z0-1 f1=z1*z1*z1*z1*z1-1 z=z-p2*f1*(z1-z0)/(f1-f0); z0=z1; z1=fn2(z), |f1| >= 0.0001 } Copper_rose { reset=1960 type=formula formulafile=secant.frm formulaname=SECANT1 function=ident/ident center-mag=3.665e-006/-8.65e-007/0.3333176 params=0/0/1.1/0 float=y periodicity=0 colors=000fQF<10>xlc<11>DA9976543000333<14>zqk<14>t_LsYJsYJ<13>gN8fM7gN9\ <13>vj`xlcxkb<13>rVEqTCpTC<13>_L8YK7YK7<14>MB4<14>sdVvgXvfW<13>pTBoR9nR9\ <14>ZG5YG5XF5WF5VE5<11>G63<14>q_OtbQtbP<13>kPAjO8jO8<13>_H6ZG5_I7<2>dOD } Jungle1 { reset=1960 type=formula formulafile=secant.frm formulaname=secant1 function=sin/ident center-mag=3.665e-006/-8.65e-007/0.3333176 params=0/0/1.2/0.5 float=y maxiter=500 logmap=9 periodicity=0 colors=000WPS<5>gtdjzgnzk<2>zzz<16>OAM<12>ziFwgFtdF<17>TGEREDPEC<4>DA2<9\ >OJ5PJ6SL6<10>zmB<22>zz0zz0zy0<60>YKCXJDVRQ<5>AAK<4>AOSARUBUWBXYB__Bba<5\ >Dtn<6>8Xc7Ta9Q`<5>L4R<8>VHI<7>zH0<7>WEDSDFRAG<2>N3JL0KL1K<2>O4J<2>UKP } Goldpod1 { reset=1960 type=formula formulafile=secant.frm formulaname=secant1 function=ident/ident center-mag=0.578974/-0.625183/9.037333/1/109.999 params=1/1/1.1/0 float=y maxiter=500 logmap=9 periodicity=0 colors=000A70<24>we0zg0zg0<21>zy0zz0zz0zz0<117>zz0tt0<29>ba0a`0ba3<17>xx\ vzzzzxx<24>z88BBBEEE210<2>850 } Parasite1 { reset=1960 type=formula formulafile=secant.frm formulaname=SECANT1 function=ident/cos center-mag=46.0996/44.4439/0.1671698/1/69.999 params=0/0/1.1/0 float=y periodicity=0 colors=avo<2>zzz<2>zzz<5>SeX<10>DF3CD0DE0<8>QP5RQ5RQ5<2>TR5US6US6UT6<27>\ Xb6Xb6Yc5Yd5<9>Xr9WtAXr9<6>_qR`qT`rWarZar`<2>hsngrkeqhcpe<3>bl`ajZajY<20\ >W_HV_GVZFUZEUYD<7>OR6OQ5NP4NO3MN2<2>KL0KL0KM1<44>_jV`kW`kW`kX<40>bwpbwp\ awp<13>Uul } Parasite2 { reset=1960 type=formula formulafile=secant.par formulaname=secant1 function=ident/sinh center-mag=-3.90084/-0.735131/30.20465 params=5/1/1/0 float=y logmap=5 periodicity=0 colors=E49sVi<2>zap<9>VGNSELPCIL9FI7CE49<4>H6CI6CJ7DK8E<8>TFMVGNVGN<29>s\ eltfmtgmthn<13>zzzVGN<13>eRYfSZeRY<14>E49<15>zzz<14>uhntfmtfm<21>aNU`MT`\ MT`MT<39>H6BG5AH6B<8>RDKSELSEL<6>QAKQ9KQ9KQ9K<3>UBNUBOWCP<10>qTg } Nucleus1 { reset=1960 type=formula formulafile=secant.frm formulaname=SECANT1 function=sqr/ident center-mag=-0.867226/0.367994/0.2628626/1/29.999 params=0/0/1/0.5 float=y periodicity=0 colors=vqleZR<6>_TLZSK_TL<14>vql<15>000<14>IC5KD6KD6<21>cXPdYQdYQdYQ<39>\ toiupjtoi<8>mf_leZleZ<6>pf`qf`qf`qf`<3>ocXobXnaV<10>YJ9WH7UF5SD3PA0<9>jc\ WleZnhaqkesnhvql<4>tnitnhsmgrlf<8>kdYjcWjcW<29>LE7KD6JD6IC6<13>000jcW<5>\ f_S } Dipole1 { reset=1960 type=formula formulafile=secant.par formulaname=secant1 function=recip/ident center-mag=2.48867/5.98404/0.03598946 params=0/0.1/1/-0.8 float=y maxiter=500 periodicity=0 colors=000BDO8CK134000<15>vcsvcsvcsvcs<13>MHUJFSIJQ<5>AbE<7>Px5<5>8f95cA\ 5`B<6>BLKCIMEKO<3>QUWSXYVZ_Y``<6>run<15>I5O<5>VHbYJe_LgaNi<6>paz<4>dWjaV\ gZTcWS`URY<6>AKA<4>OSARUAUWBXYB__BbaB<5>tnD<6>Xc8Ta7Q`9<5>4RL<7>FJUHIVHG\ Z<6>H0z<8>DFS<4>0KL<3>4JO<12>z0z<7>`9`YAYVBX<6>AJKAKMAMO<12>iFz<11>EDR } === cut here ==================== Ray ray.girvan@zetnet.co.uk +++ Technical Author +++ Topsham, Devon, UK http://www.users.zetnet.co.uk/rgirvan/ +++ The Apothecary's Drawer - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 17:12:54 -0600 From: "Tim Wegner" Subject: Re: (fractint) sci.fractals, deep zoom contest.... Jay wrote: > Unfortunately, > arbitrary precision arithmetic is only available for the standard MSet > formula. What other formulas would you like to see ported to arbitrary precision? I'm not offerring to do do a whole lot of formulas, but if there are any particular formas already in Fractint that you would like extended to arbnitrary precision, let me know. So far no one has asked Tim - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 18:37:34 -0800 From: Peter Jakubowicz Subject: Re: (fractint) sci.fractals, deep zoom contest.... At 05:12 PM 3/29/98 -0600, you wrote: Tim, > I'm not offerring to do do a whole lot of formulas, but if >there are any particular formas already in Fractint that you would >like extended to arbnitrary precision, let me know. Magnet1M and 2M - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 17:36:34 -0500 From: "Jason Hine" Subject: Re: (fractint) sci.fractals Davides replied: >I used to check in on that group every once in a while, and it used to be >very interesting. The spam business....yeah, I care. Same goes for me, exactly. Jason - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 17:45:36 -0500 From: "Jason Hine" Subject: Re: (fractint) Your Midgets For interesting midgets, Jay suggests checking out: >Jay >http://home.san.rr.com/jayrhill/MSet/Midget.html Jay, I liked that page, and am wondering how you managed to scale and rotate each mini-Mset to match the original set. Did you do it by hand/eye, or do you have another method? I'd like to know because I'fe been wanting to try some image algebra (adding or subtracting the pixel values of two images) on two images of mini-Msets, and would need to get them aligned and scaled to the same orientation and size in order to do this.... Laters, Jason - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 19:49:19 -0500 From: davides Subject: (fractint) gjdes3/gjdes4 Greetings, When this frm was first posted to the list, along with the various changes, I could only file this in a vague "when I get to it" file. Having finally taken time to "get to it", I think I see the attraction. The first two pars I posted with this frm were very similar. These two are also similar to each other, difference being in the color maps. One is one of mine (same as on the first two), the other is as noted "Jacco213". Mr. Christenson's gravijul is quite remarkable, IMO. And there are variations of it yet to go through???? Not to worry, I will not be posting all of the pars/maps, just every once in a while - maybe. If I ever get anymore time... frm:gravijul { ; r^(-2) Mark Christenson 1/25/98 ; defaults: p1 = (1,0) p2 = (0,0) p3 = (4,0) z = pixel: w = fn1(z) z = fn3(p1/fn2(w*w)) + p2 |z| < p3 } gjdes3 { ; Mark Christenson's formula ; David Shanholtzer, 1998 ; color map: dav25b ; cycle reset=1960 type=formula formulafile=fractint.frm formulaname=gravijul function=tan/cotan/sin passes=t center-mag=-8.62367e-005/0.434919/8.377706/1.1863 params=9/0/2.1/0/1.9/0 float=y maxiter=1000 inside=zmag outside=atan potential=255/255/2000 decomp=256 finattract=y colors=000<70>000E0G<13>lLq<30>G1IE0GF0G<30>lBh000<63>000K00<38>v54 } gjdes4 { ; Mark Christenson's formula ; David Shanholtzer, 1998 ; jacco213 ; reset=1960 type=formula formulafile=fractint.frm formulaname=gravijul function=tan/cotan/sin passes=t center-mag=-8.62367e-005/0.438343/8.690566/1.1863 params=9/0/2.1/0/1.9/0 float=y maxiter=1000 inside=zmag outside=atan potential=255/255/2000 decomp=256 finattract=y colors=kTI000<29>DWbEYdDWb<20>122000000<27>D00D00E01E02<21>M2BN3CM3C<2>K\ 3B<6>cLG000kkknWJ<3>zjR<3>nXLjTJfRJ<8>D3C<36>K8RK8RK8RK8RJ7R<22>E1RD0SE1\ S<14>UQcVRcURb<28>112 } davides@pipeline.com Back up my hard drive? How do I put it in reverse? - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 19:53:28 -0500 From: Lee Skinner Subject: (fractint) sci.fractals, Jay wrote: > Unfortunately, = > arbitrary precision arithmetic is only available for the standard MSet = > formula. = Actually, arbitrary precision is already implemented for four types: = Mandelbrot, Julia, Manzpower and Julzpower. (Extremely slow for those las= t = two types!) Lee Skinner - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 19:41:29 -0600 From: "Justin A. Kolodziej" <4wg7kolodzie@vms.csd.mu.edu> Subject: Re: (fractint) sci.fractals, deep zoom contest.... Tim Wegner wrote: > > Jay wrote: > > > Unfortunately, > > arbitrary precision arithmetic is only available for the standard MSet > > formula. > > What other formulas would you like to see ported to arbitrary > precision? I'm not offerring to do do a whole lot of formulas, but if > there are any particular formas already in Fractint that you would > like extended to arbnitrary precision, let me know. So far no one has > asked What it sounds like we're asking for, actually, is an arbitrary-precision formula parser. Then we wouldn't need particular formulas ported to arbitrary precision, we would just re-write them (assuming that we find a need for deep-zooming). Actually, how many .pars do you see that are from built-in types anyway? ;-) Justin K. - -- I sense a great disturbance in the Source. Justin A. Kolodziej I am 4wg7kolodzie@vms.csd.mu.edu Marquette University is http://www.mu.edu - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 20:47:32 -0500 From: "Peter Gavin" Subject: Re: (fractint) sci.fractals, deep zoom contest.... Exactly why a C++ class would be great to have... I found a couple, one if which uses Number Theoretic Transforms and is very fast... I have yet to fully understand how it works... But I don't think it would be hard to port anything to use it, since it works (for the most part) like a regular double or whatever. Pete |What it sounds like we're asking for, actually, is an arbitrary-precision |formula parser. Then we wouldn't need particular formulas ported to arbitrary |precision, we would just re-write them (assuming that we find a need for |deep-zooming). - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 19:39:58 -0800 From: "Jay Hill" Subject: Re: (fractint) Your Midgets Hi Jason, > For interesting midgets, Jay suggests checking out: > >Jay > >http://home.san.rr.com/jayrhill/MSet/Midget.html > > Jay, I liked that page, and am wondering how you managed to scale and rotate > each mini-Mset to match the original set. Did you do it by hand/eye, or do you > have another method? I used a special C++ program to compute the size and rotation, it was part of my area of the MSet project. > I'd like to know because I'fe been wanting to try some > image algebra (adding or subtracting the pixel values of two images) on two > images of mini-Msets, and would need to get them aligned and scaled to the same > orientation and size in order to do this.... > Laters, Jason An interesting idea. I have not had any luck using the pixel variable in Fractint to do this. I once asked what the units of this variable are, but it still is a mystery. Consider the simplest task, merging the regular MSet with the largest midget for which we have exact values for their bases: +.25 and -1.75. Now a shift of one by 2 units should line up the bases. But look at this frm:classic-shift (XAXIS){ ; Jay Hill, 1998 continue = 1, z = 0, zc = c = pixel+.25 + ((pixel-p1)*p2) *whitesq : if (|zc| > 40) continue = 0 else zc = sqr(zc) + c endif continue == 1 } classic_shift { ; Jay Hill, 1998 reset=1960 type=formula formulafile=color101.par formulaname=classic-shift passes=1 center-mag=0/0/10 params=2/0/1/0 float=y maxiter=256 inside=0 outside=summ periodicity=0 symmetry=xaxis colors=000<14>S9w<15>wJTzKU<30>21100\ 0000<14>000010030<29>0z0<30>02000000\ 0<14>000110330<29>zz0<30>220000000<29>000 } The whitesq variable is supposed to be 0 or 1, but it seems to be actually some screwball scaling factor also. The size and shift of the second image is incorrect. If I try to scale one, like you say, so that the bases line up AND the size of the midget is the same as the cardioid, it never happens. It seems to me we should put p1=shift and p2=scale and get overlap. It fails. Another question, while I'm at it. I asked before and I thought I understood someone's answer, but why will the xaxis symmetry not work in the frm? I can only get symmetry when I put the command in the par. This must be a bug! Jay - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Sun, 29 Mar 1998 22:31:55 -0600 From: "Tim Wegner" Subject: Re: (fractint) sci.fractals, deep zoom contest.... Justin wrote: > What it sounds like we're asking for, actually, is an arbitrary-precision > formula parser. Then we wouldn't need particular formulas ported to arbitrary > precision, we would just re-write them (assuming that we find a need for > deep-zooming). Unfortunately, that's much harder Tim - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Mon, 30 Mar 1998 17:42:08 +1200 From: "Morgan L. Owens" Subject: Re: (fractint) Your Midgets At 19:39 29/03/98 -0800, Jay Hill wrote: > >Another question, while I'm at it. I asked before and I thought I understood >someone's answer, but why will the xaxis symmetry not work in the frm? >I can only get symmetry when I put the command in the par. This must be a bug! > I think it's 'cos you have "outside=summ" in the par. Fractint ignores those symmetry conditions when the outside is coloured anything other than "" or "iter" even in the case of the built-in bog-standard Mandel (which to look at also shows _why_ it's ignored.) Morgan - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Mon, 30 Mar 1998 09:19:25 +0100 From: Edward Avis Subject: (fractint) xfractint for Alpha >>> Where can I get xfractint precompiled for DEC Alpha? > >AFAIK there aren't any precompiled xfractint's around. Just download the source and compile it. I've tried that and couldn't get it to work (Digital Unix). I'll go away and try again... - -- Ed Avis epa@datcon.co.uk http://members.tripod.com/~mave/index.html - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ Date: Mon, 30 Mar 1998 00:39:11 -0800 From: "Jay Hill" Subject: Re: (fractint) Your Midgets Hi Jason, I figured it out. The difference between working and not working code is sometimes only a few characters. :-) Using this image, you can sure see the distortion of one midget vs. the main cardioid. frm:classic_shift { ; Jay Hill, 1998 ; shift one midget over another, merge images ; p1 = shift of first midget ; p2 = scaling factor of first midget relative to second ; p3 = shift of second midget ; use outside=summ periodicity=0 passes=1float=y continue = 1, z = 0, zc = c = (pixel+p3)*(1-whitesq) + (pixel/p2+p1) *whitesq : if (|zc| > 40) continue = 0 else zc = sqr(zc) + c endif continue == 1 } classic_shift3 { ; Jay Hill, 1998 reset=1960 type=formula formulafile=*.par formulaname=classic_shift passes=1 center-mag=-0.935178/6.66134e-016/1 params=-1.75/0/54/0/0.25/0 float=y maxiter=256 inside=0 outside=summ symmetry=xaxis periodicity=0 savename=shift-3 colors=000<14>S9w<15>wJTzKU<13>ZBHXB\ GXBG<45>1S10T00V0<15>0z0<13>0Z00X00X\ 0<45>SU0TT0VV0<15>zz0<30>220000000<29>000 } > > For interesting midgets, Jay suggests checking out: > > >Jay > > >http://home.san.rr.com/jayrhill/MSet/Midget.html > > > > Jay, I liked that page, and am wondering how you managed to scale and rotate > > each mini-Mset to match the original set. Did you do it by hand/eye, or do > you have another method? > > I used a special C++ program to compute the size and rotation, it was part of > my area of the MSet project. > > > I'd like to know because I'fe been wanting to try some > > image algebra (adding or subtracting the pixel values of two images) on two > > images of mini-Msets, and would need to get them aligned and scaled to the > > same orientation and size in order to do this.... > > Laters, Jason > > An interesting idea. I have not had any luck using the pixel variable in > Fractint to do this. I once asked what the units of this variable are, but > it still is a mystery. Consider the simplest task, merging the regular MSet > with the largest midget for which we have exact values for their bases: > +.25 and -1.75. Now a shift of one by 2 units should line up the bases. and a suitable scaling lines up one other feature. [screwups deleted] Jay - - - ------------------------------------------------------------ Thanks for using Fractint, The Fractals and Fractint Discussion List Post Message: fractint@xmission.com Get Commands: majordomo@xmission.com "help" Administrator: twegner@phoenix.net Unsubscribe: majordomo@xmission.com "unsubscribe fractint" ------------------------------ End of fractint-digest V1 #148 ******************************