From: fractint-owner@xmission.com (fractint Digest) To: fractint-digest@xmission.com Subject: fractint Digest V1 #12 Reply-To: fractint@xmission.com Sender: fractint-owner@xmission.com Errors-To: fractint-owner@xmission.com Precedence: fractint Digest Wednesday, September 3 1997 Volume 01 : Number 012 In this issue: (fractint) Gumbycat's home page Re: (fractint) 32bit version of fractint Re: (fractint) 32bit version of fractint (fractint) Fractint bug? Re: (fractint) Julia bug? was Those awful viewwindows Re: (fractint) Julia bug? was Those awful viewwindows (fractint) Introducing myself Re: (fractint) Julia bug? was Those awful viewwindows Re: (fractint) 32bit version of fractint (fractint) formula identification (fractint) Printing (fractint) Lypunov Inside? Re: (fractint) Printing (fractint) formula identification Re: (fractint) Julia bug? Re: (fractint) Julia bug? Re: (fractint) Printing Re: (fractint) Printing See the end of the digest for information on subscribing to the fractint or fractint-digest mailing lists and on how to retrieve back issues. ---------------------------------------------------------------------- Date: Mon, 1 Sep 1997 23:11:52 -0700 From: "Mike or Linda Allison" Subject: (fractint) Gumbycat's home page Hi, all! Geocities remodeled, and in the process they screwed up my URL! If you're looking for me at: http://www.geocities.com/~gumbycat and you can't get in, try: http://www.geocities.com/Paris/5519 Hopefully, GC will get straightened out soon, but who knows . . . Thanks, Linda http://www.geocities.com/Paris/5519 http://www.fortunecity.com//tattooine/stephenson/5/abpf.html gumbycat@ix.netcom.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: Tue, 2 Sep 1997 12:36:48 +0200 (MET DST) From: "Michael R. Ganss" Subject: Re: (fractint) 32bit version of fractint Paul, > Why do you claim the inside-disks are infeasible? I have repeatedly tried to implement this method and have each time come to the conclusion that Fisher's method does not work for arbitrary points inside M. For a lot of points it does work, but for some the algorithm yields a gross overestimation which IMO makes it infeasible to include in a general purpose Mandelbrot drawing program. But I'd love to be proven wrong (although I tried hard to implement it exactly as described). If you have succesfully implemented this method, please make it available (if you haven't done so already and I'm unaware of it). > As for component detection, I was already planning to have the basic > Mandel formula blast both the cardioid and the biggest disk automatically. > That would really speed up exploration of SH valley and elephant valley, > two favored watering holes of fractal lovers everywhere. Sure, that's a good speedup. > You seem to refer here to a generalized component detection. It sounds > like this is meant to spot circles and cardioids anywhere. How would it > work? I considered such a thing myself once. Once. It seemed infeasible, > as to get components of period n requires accurately finding the roots of > big polynomials... order 2^n I believe. If you know the center and radius > of a circle, or the cusp point and opposite point of a cardioid, you can > calculate away the whole thing and floodfill it. Another approach would be > to spot the components other ways, but I can't think of one that isn't > lossy. For any point c inside M you can find its component center through Newton iteration if you calculate the derivative of z and the period of c which is the period of the component. Then calculate Taylor coefficients for the mapping p:W->D. These coefficients, the center and the period make up a set of "parameters" which describe the component. Now if you suspect a point c to be inside M, calculate the approximate value of p(c) for a list of components you set up as you scan the image. If p(c)<1.0 then c is inside the component. In-depth coverage can be found in Jay R. Hill's article in "The Future Use of Fractals". I've had some success implementing this method (disks work beautifully), but I've had some trouble with the cardioids. As with SOI, this method should prove advantageous for very deep zooms. - -- Michael R. Ganss Cooper: Look! Ducks! On a lake! Ahhh. rms@cs.tu-berlin.de http://www.cs.tu-berlin.de/~rms/AlmondBread/ - ------------------------------------------------------------ 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: Tue, 2 Sep 1997 08:40:36 -0400 (EDT) From: ao950@freenet.carleton.ca (Paul Derbyshire) Subject: Re: (fractint) 32bit version of fractint > >Paul, > >> Why do you claim the inside-disks are infeasible? > >I have repeatedly tried to implement this method and have each time >come to the conclusion that Fisher's method does not work for >arbitrary points inside M. For a lot of points it does work, but for some >the algorithm yields a gross overestimation which IMO makes it >infeasible to include in a general purpose Mandelbrot drawing >program. But I'd love to be proven wrong (although I tried hard >to implement it exactly as described). If you have succesfully >implemented this method, please make it available (if you haven't done >so already and I'm unaware of it). What about outside disks? I tried those once and it sometimes overestimated...someone told me there was a slight bug in the algorithm as described in The Science of Fractal Images. I'd like pseudo-code for a working outside-disks. Perhaps the same thing is causing trouble with the inside disks! >> You seem to refer here to a generalized component detection. It sounds >> like this is meant to spot circles and cardioids anywhere. How would it >> work? I considered such a thing myself once. Once. It seemed infeasible, >> as to get components of period n requires accurately finding the roots of >> big polynomials... order 2^n I believe. If you know the center and radius >> of a circle, or the cusp point and opposite point of a cardioid, you can >> calculate away the whole thing and floodfill it. Another approach would be >> to spot the components other ways, but I can't think of one that isn't >> lossy. > >For any point c inside M you can find its component center through >Newton iteration if you calculate the derivative of z and the period >of c which is the period of the component. Then calculate Taylor >coefficients for the mapping p:W->D. These coefficients, the center >and the period make up a set of "parameters" which describe the >component. Now if you suspect a point c to be inside M, calculate the >approximate value of p(c) for a list of components you set up as you >scan the image. If p(c)<1.0 then c is inside the component. In-depth >coverage can be found in Jay R. Hill's article in "The Future Use of >Fractals". I've had some success implementing this method (disks work >beautifully), but I've had some trouble with the cardioids. As with >SOI, this method should prove advantageous for very deep zooms. Okay. But what is the mapping p? For a disk, it's (x,y)*const+(a,b) for the center a,b and radius const of the component. How do you determine, though, that it is a) a disk and not a cardioid, b) const and a and b, and c) what are the mappings for cardioids etc.? - -- .*. Where feelings are concerned, answers are rarely simple [GeneDeWeese] -() < When I go to the theater, I always go straight to the "bag and mix" `*' bulk candy section...because variety is the spice of life... [me] Paul Derbyshire ao950@freenet.carleton.ca, http://chat.carleton.ca/~pderbysh - ------------------------------------------------------------ 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: Tue, 02 Sep 1997 17:51:59 +0200 From: Jacco Burger Subject: (fractint) Fractint bug? This is a MIME message. If you are reading this text, you may want to consider changing to a mail reader or gateway that understands how to properly handle MIME multipart messages. - --=_5C09693A.46274BBE Content-Type: text/plain Content-Disposition: inline I wonder if anybody has encountered this problem with saving an image to a parameter file. It occures when the bailoutest-parameter (z-screen) is combined with continuous potential (y-screen). I had an image in which the bailoutest parameter was set to imag and continuous potential activated. I wanted to examine the effect of different values for the potential-bailout value. So I stored the image to a parameter file with the b-command, changed the pot.-bailout value a few times and stored every image to the parameter-file, without letting Fractint fully calculate. I made a DOS batchfile and let it run. To my surprise I found that in the first image the bailoutest-value (z-screen) was set to imag, in the other images the bailoutest-value was set to the default-value of mod. When I examined the parfile I noticed that only the first entry had the bailoutest=imag statement. In the other entries it just wasn't there. I tried this procedure another time and the same thing happened again. So it looks like as if when you change the potential-bailoutvalue and use the b-command to store the image to a parameter-file, Fractint ignores the bailoutest=xxx command and doesn't store it. I have a parameter-file attached. Can someone please have a look? I know I can fix the file by editing it with a wordprocessor, but that is quite a hassle every time. Is it possible to have this fixed in the next version of Fractint? Thanks in advance! Cheerio, Jacco e-mail: Jacco.Burger@BU.TUDelft.nl (By the way, please let me know if the par-file isn't attached. Our mail-server has let me down a couple of times before.) - --=_5C09693A.46274BBE Content-Type: text/plain Content-Disposition: attachment; filename="970902.PAR" j018-0 { ; c.p. with bailoutest=imag ; problem with storing to parfile ; (c) 1997, Jacco Burger reset=1960 type=fn*fn function=acos/sin center-mag=-2.18929290500000000/+2.15404510500000000/1.936443 bailoutest=imag inside=0 potential=255/250/0 colors=222BHF<49>afSafTbgTchUbgT<12>QWMQVLPVLOUL<11>IOHHOHHNHHNG<12>BHDA\ HDAHDAHDAHD<2>AHDBHDBIECIECJF<2>FLHGMIINK<2>MROOTPQURSWTUXU<4>egehigkkin\ nlqqorqo<4>ppnpomoomnnl<2>llilkikihjhg<5>bZ_aXZ_VXZTV<3>SJOQGMODJMBHK8FI\ 5C<3>I7EI8EI8EI9EIAE<10>IHGIIGIJHJKI<8>SXRTYSV_UW`W<4>`debega`c<6>O25<12\ >lcS<9>B62<10>MPLORNOQN<6>IDG } j018-1 { ; c.p. with bailoutest=imag ; problem with storing to parfile ; (c) 1997, Jacco Burger reset=1960 type=fn*fn function=acos/sin center-mag=-2.18871307500000000/+2.15404510500000000/1.936443/0.9996 inside=0 potential=255/250/1 colors=222BHF<47>`eR`eSafSafTbgTchU<13>QWMQVLPVLOUL<11>IOHHOHHNHHNG<11>B\ HDBHDAHDAHDAHD<3>AHDBHDBIECIECJF<2>FLHGMIINK<2>MROOTPQURSWTUXU<3>cecegeh\ igkkinnlqqorqo<4>ppnpomoomnnl<2>llilkikih<5>c``bZ_aXZ_VXZTV<3>SJOQGMODJM\ BHK8FI5C<2>I7EI7EI8EI8EI9E<10>IGGIHGIIGIJHJKI<8>SXRTYSV_UW`W<4>`debega`c\ <6>O25<12>lcS<9>B62<10>MPLORNOQN<6>IDG } j018-5 { ; c.p. with bailoutest=imag ; problem with storing to parfile ; (c) 1997, Jacco Burger reset=1960 type=fn*fn function=acos/sin center-mag=-2.18871307500000000/+2.15404510500000000/1.936443/0.9996 inside=0 potential=255/250/5 colors=222BHF<47>`eR`eSafSafTbgTchU<13>QWMQVLPVLOUL<11>IOHHOHHNHHNG<11>B\ HDBHDAHDAHDAHD<3>AHDBHDBIECIECJF<2>FLHGMIINK<2>MROOTPQURSWTUXU<3>cecegeh\ igkkinnlqqorqo<4>ppnpomoomnnl<2>llilkikih<5>c``bZ_aXZ_VXZTV<3>SJOQGMODJM\ BHK8FI5C<2>I7EI7EI8EI8EI9E<10>IGGIHGIIGIJHJKI<8>SXRTYSV_UW`W<4>`debega`c\ <6>O25<12>lcS<9>B62<10>MPLORNOQN<6>IDG } j018-25 { ; c.p. with bailoutest=imag ; problem with storing to parfile ; (c) 1997, Jacco Burger reset=1960 type=fn*fn function=acos/sin center-mag=-2.18871307500000000/+2.15404510500000000/1.936443/0.9996 inside=0 potential=255/250/25 colors=222BHF<47>`eR`eSafSafTbgTchU<13>QWMQVLPVLOUL<11>IOHHOHHNHHNG<11>B\ HDBHDAHDAHDAHD<3>AHDBHDBIECIECJF<2>FLHGMIINK<2>MROOTPQURSWTUXU<3>cecegeh\ igkkinnlqqorqo<4>ppnpomoomnnl<2>llilkikih<5>c``bZ_aXZ_VXZTV<3>SJOQGMODJM\ BHK8FI5C<2>I7EI7EI8EI8EI9E<10>IGGIHGIIGIJHJKI<8>SXRTYSV_UW`W<4>`debega`c\ <6>O25<12>lcS<9>B62<10>MPLORNOQN<6>IDG } - --=_5C09693A.46274BBE-- - ------------------------------------------------------------ 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: Tue, 2 Sep 1997 19:03:08 -0700 From: "Jay Hill" Subject: Re: (fractint) Julia bug? was Those awful viewwindows Rich Thomson wrote: >Type 'v' to get the view window screen, then say "no" for "Preview image". Thank you very much. I should have known it must be easy. :-) Now, is this a bug? Might pass as FoTD if it had a romantic story to go with it. I zoomed in on the right most period 12 midget and switched to the Julia set view. Now look at this. Something is wrong. A flaw here at magnification 1063 begins at magnification 20. Press the space bar to see the midget, up close. It is one from my complete collection (coordinates found as part of the MSet area project). Speaking of collections, did you know Fractint has a limit of 2000 samples in a par file? I found out! The latest Pentiums are fast enough that it takes longer to press SHIFT-@, DOWN arrow, ENTER than to draw the image. Is there a 'next' par image key which will get the next one without leaving the graphics mode? Also, in zooming in, it takes longer to get the dozen or so PageUp key strokes in than to draw images. At least until you are at 1e12 magnification or so. A keystroke to get the max-zoom box would be nice. BTW, the fact that the zoom box stays centered on the center coordinates is very useful. Looking for very small features is easy when you have the coordinates. Of course, you can press Z, F6 and type in a new magnification. But the view along the way is the fun part of zooming. For deep zooming, I use a trick to make Fractint draw a small view for early sampling and still keep the 1024x768 setting. It is to put the zoom focus in the upper right of the little zoom box. Press ENTER to start the zoomed in image. Before it gets far (as quick as you can) press PageUP then CTRL-Right arrow forcing the calculation to the left side. Now the calculation will occur in the upper left corner. Usually I see the next level of interest in about 20% of the scan down the screen. If I have missed, I can hit PageUP, UpArrow and/or Left Arrow and fill in a narrow strip in those directions. This will help you in DEEPZOOM mode where you are looking for a midget (and hoping you are not caught in a Misiurewiz trap). Jay PS. If someone recognizes these colors, I admit it, they are from someone's post, but I lost track of whose. Let me know whose they are. I think they are nice, so here they are again. 3191_12_1867 { ; 0.471038112527672102 0.354079734991600297 reset=1960 type=julia passes=1 center-mag=+0.00000000000000000/-0.00000000000000000/1063.278 params=0.4710381123973365/0.3540797351219784 float=y maxiter=4096 colors=000AAA<6>SKEULEWMEYOF_PF<5>nYIpZIs_Ju`JxbKzcK<20>AAA<20>hcz<21>AA\ A<20>zzc<20>AAADEE<19>mzz<20>AAA<19>awaczcbxb<20>AAA<20>zcm<19>DBC } - ------------------------------------------------------------ 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: Tue, 2 Sep 1997 23:23:05 -0400 (EDT) From: ao950@freenet.carleton.ca (Paul Derbyshire) Subject: Re: (fractint) Julia bug? was Those awful viewwindows For slow deepzoom exploration before reaching a "target", what I do is use a tiny view-window. 'v', yes, and 4 or 5 does the trick. then 'v' and no to draw the target fullscreen. (Of course, you didn't know how to turn off the view windows before...:-)) - -- .*. Where feelings are concerned, answers are rarely simple [GeneDeWeese] -() < When I go to the theater, I always go straight to the "bag and mix" `*' bulk candy section...because variety is the spice of life... [me] Paul Derbyshire ao950@freenet.carleton.ca, http://chat.carleton.ca/~pderbysh - ------------------------------------------------------------ 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: Tue, 02 Sep 1997 20:55:50 -0700 From: cindy mitchell Subject: (fractint) Introducing myself Hello Everyone, Have been a Fractint user for ever. Remember XT's and CGA? Fractint was there and still is with my every upgrade, and still a"DOS" program. Even with Win95 I use dos as much as possible, (I do have Fractint on my desktop too). I have been on the list for a week and am thrilled that there are so many Fractint users out there. I am terrible at reading documentation so have been learning many things. For the Fractint Wish List -- a catalog feature to compare the subtle differences between commands. As it is I use a dos program GifDesk 4.5 to view the Gifs. Another nice utility would to be able to delete those gif files that have been altered after using fractint. I seem to have alot of fractint gif's that I have d/l and can't use. Cindy Mitchell - ------------------------------------------------------------ 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: Wed, 3 Sep 1997 01:49:03 -0400 From: Les St Clair Subject: Re: (fractint) Julia bug? was Those awful viewwindows Jay, >>Now, is this a bug? = >>I zoomed in on the right most period 12 midget and switched to the >>Julia set view. Now look at this. Something is wrong. = Seems to be a periodicity checking error. Switch to periodicity=3D0 and t= he flaw goes away (the "inside" drawing takes longer too, but that just show= s the speed-up you get from the periodicity logic). >>... did you know Fractint has a limit of 2000 samples in a >>par file? Shucks! Now I'll only be able to put five and a half years worth of FOTD = in one file ! >>If someone recognizes these colors, I admit it, they are from >>someone's post, but I lost track of whose. Did you know that you can create a "color plug-in" par file by editing ou= t everything but the colors=3Dstatement? You can use this method to annotate your color collections so you never forget where they came from, like so: JAY_001 { ; I borrowed these from Joe Bloggs colors=3D000AAA<6>SKEULEWMEYOF_PF<5>nYIpZIs_Ju`JxbKzcK<20>AAA<20>hcz<21= >AA\ A<20>zzc<20>AAADEE<19>mzz<20>AAA<19>awaczcbxb<20>AAA<20>zcm<19>DBC } Once you've drawn an image just open your "colors" par in the usual way a= nd Fractint will simply read in the new colors. - - 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: Wed, 3 Sep 1997 12:13:00 +0200 (MET DST) From: "Michael R. Ganss" Subject: Re: (fractint) 32bit version of fractint Paul, > What about outside disks? I tried those once and it sometimes > overestimated...someone told me there was a slight bug in the algorithm as > described in The Science of Fractal Images. I'd like pseudo-code for a > working outside-disks. Perhaps the same thing is causing trouble with the > inside disks! I don't think so, because the inside-disks approach is very different from the outside one (as you know, not just set x=1 instead of 0 and it works for inside disks as well). I used to have a working outside disks (years ago), maybe I'l hack up one again when I have the time. > Okay. But what is the mapping p? For a disk, it's (x,y)*const+(a,b) for > the center a,b and radius const of the component. How do you determine, > though, that it is a) a disk and not a cardioid, b) const and a and b, and > c) what are the mappings for cardioids etc.? p (rho) is the product of all z's from z_n to z_{n+p} where p is the period. At the component center this is 0. Besides Jay's article there's some about it in "The Beauty of Fractals" in the Mandelbrot chapter. You don't need to know if it's a cardioid or a disk, just if it's inside or not, although Jay describes a heuristic to determine disk/cardioid. - -- Michael R. Ganss Cooper: Look! Ducks! On a lake! Ahhh. rms@cs.tu-berlin.de http://www.cs.tu-berlin.de/~rms/AlmondBread/ - ------------------------------------------------------------ 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: Wed, 3 Sep 1997 13:17:38 +0000 From: Peter Otterstaetter Subject: (fractint) formula identification Hi friends, >>Peter Otterstaetter wrote: >>I think, to identify a formula, the most important thing is NOT its >>name but its CONTENT. So why not use a "content dependend >>identifier" like a "hash count" or a "fingerprint" (may be some >>techniques used in PGP would help) as a formula identifier? Just >>an idea. >George Martin wrote: >Worth a look, but this would constitute a *major* change in the way >Fractint handles the identification of formula, par, ifs, and >lsystem entries. Also, there is a fair amount of formula rewriting >going on. For example, quite a few formulas have been rewritten to >take advantage of the new if..else feature of the formula parser. >These formulas look much different than the originals, and run much >faster; but in fact draw the identical images as the original >formulas with the same underlying math. I wouldn't want to lose the >ability to have such improved formulas automatically used by old >parfiles, as they can be now because the formula name remains the >same. >Tim Wegner wrote: >This is an interesting idea, but when you try to implement it, there >are problems. Trivial changes in algebra would change the "hash >count", as would changes in names of variables. >Still, it's worth reconsidering. But for now, serious fractal >fanatics need OrgFrm or something similar. Let me be a bit more precise. The hash count idea requires a new thinking about a formula. Let a formula have a "description part" and one ore more "implementation parts". The "description part" describes the "formula mathematics" in a normalized formal format (which we have to define; OK lot of work!). The hash count (or fingerprint or whatever) is taken from the "description part". The "implementation parts" describe some implementation of the "formula mathematics" (like an entry in the well known frm-file). Changes in the implementation parts (like different variable names, if-then-else structure etc.) would not affect the hash count. So what we need to identify a formula is its hash count (or whatever) and its implementation name (if there are more than one implementations). Hope this helps to clearify the idea. Peter - ---------------------------------------------------------------------- Peter Otterstaetter BASF Aktiengesellschaft Zentralbereich Informatik ZXA/U Anwendungsentwicklung D-67056 Ludwigshafen E-mail: peter.otterstaetter@zxa.basf-ag.de - ---------------------------------------------------------------------- All things come to those who wait. They come, but often come too late. From Lady Mary M. Curie: Tout Vient a Qui Sait Attendre (1890) - ---------------------------------------------------------------------- - ------------------------------------------------------------ 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: Wed, 03 Sep 1997 08:57:38 -0500 From: Justin Kolodziej <4wg7kolodzie@vms.csd.mu.edu> Subject: (fractint) Printing This is a multi-part message in MIME format. - ------=_NextPart_000_0000_01BCB847.6DCEF600 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Help me! I can't print on my HP Deskjet 694C printer. I tried using = the Paintjet printer setting, but I got this striped thing that wasn't = even close to what I wanted. What do I have to do? Do I have to download = Winfrac instead? Justin Kolodziej 4wg7kolodzie@vms.csd.mu.edu - ------=_NextPart_000_0000_01BCB847.6DCEF600 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

 Help me! I can't = print on my HP=20 Deskjet 694C printer.  I tried using the Paintjet printer setting, = but I=20 got this striped thing that wasn't even close to what I wanted. What do = I have=20 to do? Do I have to download Winfrac instead?

Justin Kolodziej

4wg7kolodzie@vms.csd.mu.edu - ------=_NextPart_000_0000_01BCB847.6DCEF600-- - ------------------------------------------------------------ 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: Wed, 3 Sep 1997 09:05:52 +0500 (GMT) From: Ramiro Perez Subject: (fractint) Lypunov Inside? Hello, This is something that I found while I was experimenting with the lyapunov exponent for the mandelbrot set. The idea was to calculate the expontent for every point that is inside of the set, and since the points that nears the boundary becomes more chaotic as they came close to it, I espect level sets coming from the center of the M. set to the boundary. but the history is another, because instead of the level sets, the inside of the set (and of every bud) has a radial estructure, with rays that come from the boundary to the center.. The julia sets too, has a weird (but beautiful) lakes, so check this par and formula file, and if anyone knows why that happens, I wish to hear the explanation... Ramiro Perez =========================lyap.frm============================ mandlyap{ ;P1 is the bailout z=0, c=pixel, k=0, l=0, z1=0: z1=z1*z1+c dz1=2*z1 k=k+1 l=l+log(dz1) z=l/k |z1|<=p1 } julialyap{ ;P1 the C point P2 the bailout z=0, c=p1, k=0, l=0, z1=pixel: z1=z1*z1+c dz1=2*z1 k=k+1 l=l+log(dz1) z=l/k |z1|<=p2 } =========================mlyap.par============================ mand1 { reset=1960 type=formula formulafile=lyap.frm formulaname=mandlyap passes=1 center-mag=-0.625978/-4.44089e-016/0.8503401 params=100/0 float=y fillcolor=0 inside=zmag outside=summ colors=CCC03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<3>0Nk0Eq\ 08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<2>0Sh0Nk0Jn0Eq0\ 8u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<2>0Sh0Nk0Jn0Eq08\ u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<2>0Sh0Nk0Jn0Eq08u } Jul1 { reset=1960 type=formula formulafile=lyap.frm formulaname=julialyap passes=1 center-mag=0/0/0.6666667 params=-1/0.01/100/0 float=y fillcolor=0 inside=zmag outside=summ colors=CCC0Sh0Nk0Jn0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT\ 2jW0gZ<3>0Nk0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<\ 2>0Sh0Nk0Jn0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<2\ >0Sh0Nk0Jn0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ0bb\ 0Ye } Jul1a { reset=1960 type=formula formulafile=lyap.frm formulaname=julialyap passes=1 center-mag=0.344288/0.416493/13.33333 params=-1/0.01/100/0 float=y fillcolor=0 inside=zmag outside=summ colors=CCC0Sh0Nk0Jn0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT\ 2jW0gZ<3>0Nk0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<\ 2>0Sh0Nk0Jn0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ<2\ >0Sh0Nk0Jn0Eq08u03x20x<14>z00z20<13>zu0zy0xz0<9>Lz0Hz0Fy2<8>3kT2jW0gZ0bb\ 0Ye } ====================================================================== Ramiro Perez Clare Nash . _/ . . System Adminstrator . * . _/ * PANNet * + . _/ _/ _/ . + . e-mails: . . _/ _/ _/ + . rperez@ns.pa _/ _/ _/ _/ _/ _/ _/ _/ _/ . rperez@keops.utp.ac.pa . * _/ _/ _/ . * rperez@listas.utp.ac.pa + + _/ _/ _/ * . . Web pages: . _/ . * http://www.utp.ac.pa/~rperez * _/ . + . . + - ------------------------------------------------------------ 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: Wed, 03 Sep 1997 10:15:28 -0400 From: nick.grasso@hrads.com (Grasso, Nick) Subject: Re: (fractint) Printing At 08:57 AM 9/3/97 -0500, Justin Kolodziej wrote: > I tried using the Paintjet printer setting, but I got this striped >thing that wasn't even close to what I wanted. What do I have to do? Do I >have to download Winfrac instead? Justin, The printing capabilities of fractint are quite rudimentary. I don't think many people print directly from fractint. You are much better off using a third party program. If you are running Windows, get the shareware program PaintShop Pro. It is easy to use and does a great job of printing fractals on my Deskjet 870. Nick nick.grasso@hrads.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: Wed, 3 Sep 1997 12:16:13 -0400 From: George Martin <76440.1143@compuserve.com> Subject: (fractint) formula identification Peter, > Let me be a bit more precise. The hash count idea requires a new thinking about a formula. Let a formula have a "description part" and one or more "implementation parts". The "description part" describes the "formula mathematics" in a normalized formal format (which we have to define; OK lot of work!). < I'm always ready for new thinking! Perhaps you could give an example - here are two formulas, the second of which is a simple optimization of the first. These formulas would produce identical images. Could you show what the "description part" of each of these formulas would be? Presumably it would be such that if the formulas were written by different persons, the description part would be the same. Example1 { z = c = pixel: z = z * z + sin(c) |z| < 4 } Example2 { z = pixel c = sin(pixel): z = z * z + c |z| < 4 } A bit more challenging would be to take the "before and after" versions of the Carr2821 formula (you can get these in the if..else tutorial that is part of the fractint 19.6 package) and show how independent writers of these two formulas would generate the same descriptive section. Someone asked me a year or so ago if it would be possible to go through the Orgform compilation and weed out "duplicate math" formulas, so I have already given a bit of thought to the idea of formula "content". Some things are easy, such as recognizing that the name of a variable does not affect the underlying math (in fact, when orgform.exe decides to skip a formula because it is identical to a formula of the same name already in the compilation, it makes the comparison without regard to names given to variables). Order of operation matters are probably in range, such as recognizing that z = a*b is the same as z = b*a. Algebraic equivalency becomes harder; recognizing the equivalence of such expressions as (x+y)^2 and x^2+2*x*y+y^2 opens up a Pandora's box of Goedelian proportions. Developing an algorithm to recognize the equivalency of major rewrites such as with Carr2821 seems unimaginable to me. Regards, George Martin - ------------------------------------------------------------ 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: Wed, 3 Sep 1997 11:05:29 -0700 From: "Jay Hill" Subject: Re: (fractint) Julia bug? Les (and Charles) wrote: >>Julia set view. Now look at this. Something is wrong. >Seems to be a periodicity checking error. Switch to periodicity=0..... This thread started when I wrote the 'Those awful viewwindows' note. Now I see the 'v' key fixes that. Now, I looked for 'periodicity' in the fractint.doc. It again looks there is no hot key for this. I locate a midget at high magnification with solid gueesing on, periodicity on and any other gimic to make it fast. Now I just press space bar twice and get the Julia set. How do I easily get periodicity=0. What I find is par file methods which would put me back to what I was (needlessly) complaining of earlier. (Fractint programmers note: no offence ment by any of my rants! Been programming for 35 years, so I have some hint of what produced Fractint.) Here is my sci.fractals sig: int main(){float g,s,f,r,i;char*_="!/-,;<:!lnb/bh`r/ylqbAmmhI/S/x`K\n"; int m,u,e=0;_[32]++;for(;e<3919;){u=(256*(s=(r=.0325*(m=e%80)-2 )*r+(i=.047*(e/80)-1.128)*i)-96)*s+32*r<3?25:16+32*r+16*s<1?31:0; if(u==(s=f=0))do g=s*s-f*f+r;while((f=2*s*f+i)*f+(s=g)*g<4&&++u<27); putchar(_[++e>3840&&m<25?31-m:m>78?32:u]^1);}} 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: Wed, 03 Sep 1997 11:41:29 PST From: NOEL_GIFFIN Subject: Re: (fractint) Julia bug? "Jay Hill" wrote: >Les (and Charles) wrote: >>>Julia set view. Now look at this. Something is wrong. >>Seems to be a periodicity checking error. Switch to periodicity=0..... >This thread started when I wrote the 'Those awful viewwindows' note. Now I >see the 'v' key fixes that. Now, I looked for 'periodicity' in the >fractint.doc. >It again looks there is no hot key for this. I locate a midget at high >magnification with solid gueesing on, periodicity on and any other gimic >to make it fast. Now I just press space bar twice and get the Julia set. >How do I easily get periodicity=0. What I find is par file methods which >would put me back to what I was (needlessly) complaining of earlier. The "G" keyboard command lets you give a startup parameter interactively. From there you can say periodicity=no to turn this feature off. Cheers, Noel - ------------------------------------------------------------ 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: Wed, 03 Sep 1997 12:35:16 -0700 From: Pierre Aubert Espenan Subject: Re: (fractint) Printing Justin Kolodziej wrote: > > Help me! I can't print on my HP Deskjet 694C printer. I tried using > the Paintjet printer setting, but I got this striped thing that wasn't > even close to what I wanted. What do I have to do? Do I have to > download Winfrac instead? > > Justin Kolodziej > > 4wg7kolodzie@vms.csd.mu.edu Dear Justin: Try using the Windows port of fractint. Save the fractal in BMP format and use the Windows printer drivers that came with your printer. This always works for me. Pierre Espenan - ------------------------------------------------------------ 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: Wed, 03 Sep 1997 15:29:49 -0500 From: Jack Gill Subject: Re: (fractint) Printing I'm having the same Deskjet printing problems as Justin. As I'm new to the list and to Fractint, please explain what is meant by 'windows port of fractint'. TIA Jack Gill Pierre Aubert Espenan wrote: > Justin Kolodziej wrote: > > > > Help me! I can't print on my HP Deskjet 694C printer. I tried > using > > the Paintjet printer setting, but I got this striped thing that > wasn't > > even close to what I wanted. What do I have to do? Do I have to > > download Winfrac instead? > > > > Justin Kolodziej > > > > 4wg7kolodzie@vms.csd.mu.edu > Dear Justin: > Try using the Windows port of fractint. Save the fractal in BMP > format and use the Windows printer drivers that came with your > printer. This always works for me. > Pierre Espenan > > ------------------------------------------------------------ > 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" - ------------------------------------------------------------ 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 #12 ***************************** To subscribe to fractint Digest, send the command: subscribe fractint-digest in the body of a message to "majordomo@xmission.com". 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