FOTD 02-11-02 (Electron Cloud [4])
FOTD -- November 02, 2002 (Rating 4) Fractal visionaries and enthusiasts: Many years ago, when I was just discovering science, I became fascinated with the atomic world. My fascination was caused by a story I read about a man who begins shrinking. I forget the name of the story, (it might be "One Who Shrank"), but in it the man is placed on a block of very dense metal and shrinks until the atoms of the metal appear as large to him as stars and planets. He eventually lands on an inhabited planet, where they tell him that they have seen him coming in the sky for many years. As he continues to shrink, he finds that the atoms of this sub-atomic-sized world are also planets of still smaller worlds, ad infinitum. When I read it, the idea seemed sensible enough, so I promptly went to the local library to read about these miniature inhabited worlds that might exist within the everyday objects around us. But instead of alien civilizations, I found the world of quantum mechanics, where, unless one is a mathematical genius, (which I was not), nothing makes sense. I found that electrons, for example, are not objects in the everyday sense, but clouds of probability, where some indefinable non-thing has a certain chance of existing for an indefinable moment of time. I found that, for electrons, and all atomic particles for that matter, the very concepts of object and location are fuzzy at the best. But my small disappointment was far offset by my fascination with the discovery that the atomic world beneath the physical world is not as I had supposed it might appear to my senses. Today's image could be interpreted as a fractal atom, in which the electron cloud surrounds the nucleus, which in this case is a Mandelbrot midget. In fact, I actually did interpret it this way, and named it "Electron Cloud". The generating expression subtracts some Z^(0.9) from some Z^(-0.9) then adds (1/C). The parent fractal created by this expression is what I call unstable, that is it 'evaporates' when the bailout radius is increased. Since the bailout of today's image has been raised to 10^100, the entire scene has long since evaporated and left behind a totally black screen of trapped 'inside' points. Blank screens can sometimes be saved however, and I salvaged today's blank screen by applying the < bof61 > inside fill to it. The result is not great. Indeed, with its rating of 4, it is a bit below average. But it is worth a look. The slow render time of 1-1/2 hours makes rendering the image from the attached parameter file an option only the most devoted fractalists would choose. Fortunately, Paul and Scott are devoted fractalists, and as soon as they can render the image, it will be available on their web sites at: <http://home.att.net/~Paul.N.Lee/FotD/FotD.html> and at: <http://sdboyd.dyndns.org/~sdboyd/fotd/index.html> The fractal weather Friday was chilly and blustery, with a temperature of 54F 12C and heavy clouds that dropped sporadic showers of rain. Needless to say, the duo of dynamic fractal cats disliked the conditions, and showed their displeasure with intermittent shouts of frustration. A treat of tuna eased their distress. My distress, which is not all that great to begin, will be eased even further when I finish the tiny amount of work that still lies before me. The best news of all is that I shall return in 24 hours with the next FOTD, one that will rate at least a 6. Until that moment arrives, take care, and walk with your head in the clouds. Jim Muth jamth@mindspring.com jimmuth@aol.com START 20.0 PAR-FORMULA FILE================================ Electron_Cloud { ; time=1:35:40.12--SF5 on a P200 reset=2002 type=formula formulafile=allinone.frm formulaname=MandelbrotMix4 function=recip passes=1 center-mag=+0.00606704621369720/+0.088414130616388\ 71/2223917 params=2/-0.9/-2/0.9/-0.31/1e+100 float=y maxiter=8400 inside=bof61 periodicity=10 colors=000rdzrdzrdzrdzrezrezrezrezrfzrfzrfzrgzrgzr\ gzrgzrhyrhxrhwrhvriuritrisrirrjqrjprjorjnrkmrklrkk\ rljrlirlhrlgrmfrmermdrmcrnbrnarn`rn_roZroYroXroWrp\ VrpUrpTrpSrqRrqQrqPrrOrrNrrMrrLrsKzsJrsIrsHrtGrtFr\ tDrtDruDruCruCruCrvBrvBrvBrvBqwCpwCowDowDnwDmwElwE\ lwFkwFjwFiwGiwGhwHgwHfwHfwIewIdwIdwJcwJbwKawKawK`w\ L_wLZwMZwMYwMXwNWwNWwOVwOUwOUwPTwPSwPRwQRwQQwRPwRO\ wROwSNwSMwTLwTLwTKwUJwUKxWJwVJwUIwTIvSIvRHvQHuPHuP\ GuOGuNFtMFtLFtKEsJEsJEsIDrHDrGDrFCrECqDBqCBqCBpBAp\ AAp9Ao89o79o68n59o69o69o7Ao7Ao7Ao8Bo8Bo8Bo9Co9Co9C\ oADoADoADoBEoBEoBEoCFoCFoCFoDGoDGoDGoEHoEHoFHoFIoF\ IoGIoGJoGJoHJoHKoHKoIKoILoILoJLoJMoJMoKMoKNoKNoLNo\ LOoLOoMOoMOoMPpNPpNPpOQpOQpOQpPRpPRpPRpQSpQSpQOcz0\ FUNczMczMczLczLczKczKczJczJczIcz0FUHczHczHczIczJcz\ KczLczMczMczNczOczPczQczRczRczSczTczUczVczWczWczXs\ zYczZcz_cz`cz`czaczaczacz } frm:MandelbrotMix4 {; Jim Muth a=real(p1), b=imag(p1), d=real(p2), f=imag(p2), g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j, k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel): z=k*((a*(z^b))+(d*(z^f)))+c, |z| < l } END 20.0 PAR-FORMULA FILE==================================
I've been experimenting with Deep Zooms using batch files produced by Batcher211, FA100, and FAE210b. Basically they are very simlar to partobat in the manner that they create nested bat files using fractint. The problem that I have encountered is the 128 charater length limit on the DOS command line. Using all these parameters and long high-number addresses often exceeds the Dos 128 character lenght limit and gets "truncated", resulting in a mangled fractal. The trick is to "call" up other nested bat files, *.par files, or possibly sstools.ini files where all those addresses, parameters, and data can be "stored" and not crash the 128 character limit Can you put the parameters, addresses and other info in the sstools.ini file, and then rename the "sstools.ini" file to "5sp.ini" and run it as part of your BAT file? What parameters can go into the sstools.ini file? If that is possible, what would be the correct command line syntax for such an approach? Would it go something like "fractint 5sp.ini........"? I am asking about any approaches that would free up as much of that command line space as possible. When you start doing really deep zooms, just the the addresses get longer and longer, so any additional parameters simply take up space. I have some questions about distributed batch porcessing, ie. a batch file "calling" other batch files. What are the limitations for that aspect of using bat files that might affect the "accuarcy" of the processing? Are there any "memory" or command line length limitations? Is there a limit to how many "CALL" type nested bat files that can be run from one "master" bat file?.Are there any limitations as to how many levels down you can go? All the best, Tony Parker
I'm trying to make the ulitmate Fractint boot disk What's the best way to load fractint into dos? XMS? DPMI? What would be the best XMS type config.sys and autoexec.bat type settings what device statements should one make/load? What version of DPMI (Where found) and what would be the correct config.sys and autoexec.bat statements? All the best, Tony
On 2 Nov 02, at 13:20, Tony Parker wrote:
I'm trying to make the ulitmate Fractint boot disk What's the best way to load fractint into dos?
XMS?
Fractint works fastest with XMS memory in my experience.
DPMI?
I don't believe Fractint knows what is or uses it.
What would be the best XMS type config.sys and autoexec.bat type settings what device statements should one make/load?
What version of DPMI (Where found) and what would be the correct config.sys and autoexec.bat statements?
Only place I've seen DPMI memory provided is Windows9x, OS/2, and (IIRC) DRDOS or OpenDos. I have them both here, but don't remember at the moment. David gnome@hawaii.rr.com
Tony Parker wrote:
I'm trying to make the ulitmate Fractint boot disk
I think this is a great idea. Once you get it figured out, we could bgoot a boot disk image at fractint.org. Have you seen http://www.bootdisk.com/ Tim
-----Original Message----- From: fractint-admin@mailman.xmission.com [mailto:fractint-admin@mailman.xmission.com]On Behalf Of Tony Parker Sent: 02 November 2002 18:21 To: fractint@mailman.xmission.com Subject: [Fractint] Loading FRACTINT into DOS Thre Ultimate Fractint Boot Disk I'm trying to make the ulitmate Fractint boot disk <SNIP> What about having a RAMDRIVE or RAMDISK (I forget which it is)? I used to have a machine with 4MB of RAM and I'd load fractint into a RAMDRIVE/RAMDISK to make it run (well, actually load) faster. It would also save NT4/win2k/XP users who use the NTFS file system from needing a FAT partition in which to store Fractint if the ultimate Fractint boot disk was DOS or win9x... Only problem is getting the whole of fractint on the boot disk - might need a second floppy or some little program to uncompress a compressed version... Iain Stirling. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.410 / Virus Database: 231 - Release Date: 31/10/2002
Tony Parker wrote:
Can you put the parameters, addresses and other info in the sstools.ini file, and then rename the "sstools.ini" file to "5sp.ini" and run it as part of your BAT file?
What parameters can go into the sstools.ini file?
If that is possible, what would be the correct command line syntax for such an approach?
Would it go something like "fractint 5sp.ini........"?
From Chapter 5 of fractint.doc ("Command Line Parameters, Parameter Files, Batch Mode"): ------------- 5.1 Using the DOS Command Line You can specify parameters when you start Fractint from DOS by using a command like: FRACTINT SOUND=OFF FILENAME=MYIMAGE.GIF The individual parameters are separated by one or more spaces (an parameter itself may not include spaces). Upper or lower case may be used, and parameters can be in any order. Since DOS commands are limited to 128 characters, Fractint has a special command you can use when you have a lot of startup parameters (or have a set of parameters you use frequently): FRACTINT @MYFILE When @filename is specified on the command line, Fractint reads parameters from the specified file as if they were keyed on the command line. You can create the file with a text editor, putting one "keyword=value" parameter on each line. -------------
participants (6)
-
David Jones -
Iain Stirling -
Jim Muth -
Morgan L. Owens -
Tim Wegner -
Tony Parker