Not Java, but Matlab :)

Anyway, the syntax is very similar I think.

If you have any question, let me know.

Fernando



news:405752fe$1@news.povray.org...
> Fernando G. del Cueto schrieb:
> > 100 million points :)
> >
> > and a different color scheme. I must go to class now, but I'll post my
> > coloring scheme soon.
>
> Is it possible to get the Java-Source of your programm? I would like to
> play around with it.
>
>
> -- 

> mat### [at] matweide
> http://www.matwei.de

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Attachments:
Download 'att.m.txt' (1 KB)

> Thanks! Yes, I remember that screensaver in linux. There's another one,
> called 'flow'. I love that one.

flow is also very nice, but my prefered one is IFS...  and I hope I'll 
get to remake it with OpenGL one day!

> Here's the URL where you can find the wallpaper version of the image
> 
> http://www.deviantart.com/view/5883845/

Thanks a lot!
   Simon

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> Is it possible to get the Java-Source of your programm? I would like to
> play around with it.

The java code is mine. It is without coloring and can be found at

http://madonion.homeip.net/attractors/

Manuel

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"Fernando G. del Cueto" <fcu### [at] yahoocom> wrote in message
news:4056a4c0@news.povray.org...
> I didn't use POV, I made a program in Matlab and exported the resulting
> matrix to a 48-bit PNG. I had to do extensive image processing to stretch
> the contrast and luminosity of the image and some minor cosmetic
> adjustments.
>
> I also had the idea of adding different values for the colors of the
pixels.
> Basically, the colors are related to the change in position. The bigger
the
> change, the more intensity is put into the pixel.
>
> I used 10 million point. If I have time, probably I'll do a 100 million
> points.
>
> The image was generated in 3 minutes and less than 200 Mb of RAM.
>
> I hope you like it.


Very mathemagical.

-- 
- Respectfully,
Dan
http://<broken link>

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>> Here's the URL where you can find the wallpaper version of the image
>>
>> http://www.deviantart.com/view/5883845/

I've set it as my work wallpaper and it's fabulous!  On some computer I 
can't have a better resolution than 1024x768 and the image is still 
centered and I can't see the 'strange' circle, which I like very much 
and on some other computer I get a 1280x1024 perfect bg image which is 
different and also very nice!

I was wondering...  the 'strange' screensaver used to animate the 
attractors you have been rendering... could you animate it also?

Simon

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news:40593f77$1@news.povray.org...
> >> Here's the URL where you can find the wallpaper version of the image
> >>
> >> http://www.deviantart.com/view/5883845/
>
> I've set it as my work wallpaper and it's fabulous!  On some computer I
> can't have a better resolution than 1024x768 and the image is still
> centered and I can't see the 'strange' circle, which I like very much
> and on some other computer I get a 1280x1024 perfect bg image which is
> different and also very nice!

Thanks :) I'm glad you liked it.

> I was wondering...  the 'strange' screensaver used to animate the
> attractors you have been rendering... could you animate it also?

Actually I'm working on some kind of animation right now... I'll leave it
overnight working... tomorrow I'll check what was the result :)

Fernando

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> I hope you like it.
I really do. Is there some website where attractors are described in 
detail? I've seen many differents by now (the Lorenz one being the first 
:), but I've never found a source which could explain me the theory 
behind it :(

Florian

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"Florian Brucker" <tor### [at] torfboldcom> wrote in message
news:40599b45@news.povray.org...
> > I hope you like it.
> I really do. Is there some website where attractors are described in
> detail? I've seen many differents by now (the Lorenz one being the
first
> :), but I've never found a source which could explain me the theory
> behind it :(
>
> Florian

This can help visualise a 2-D arrangement (OK - so it is part of a
spherical surface).

As a boy, one distraction was to hang a bar magnet vertical on a 0.5
or 1 metre string about 5 cms above the floor/table. 1 or more bar
magnets (or steel bolts) were then placed on the floor/table near this
pendulum which was then set swinging.

A variation was to use a glass table as base, a small torch taped to
the cord and place a camera (long exposure) below the magnets.

Alf

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> I really do. Is there some website where attractors are described in
> detail? I've seen many differents by now (the Lorenz one being the first
> :), but I've never found a source which could explain me the theory
> behind it :(


Tor Olaf Kristensen posted the following:

//Just in case anyone is interested in a free online versions of a book
//about "Strange Attractors":
//
//http://sprott.physics.wisc.edu/sa.htm
//
//"Strange Attractors: Creating Patterns in Chaos (ISBN 1-55851-298-5)"
//by Julien C. Sprott

I downloaded the pdf version and read it partially. It describes the concepts
behind these attractors very clearly. Note that the attractor Fernando posted
uses different equations:

x2 = sin(a*y1) - cos(b*x1)
y2 = sin(c*x1) - cos(d*y1)

Manuel

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> Actually I'm working on some kind of animation right now... I'll leave it
> overnight working... tomorrow I'll check what was the result :)

Excellent job!  Looking forward to see the results! =)

Simon

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