POV-Ray : Newsgroups : povray.macintosh : Mandelbrot and Julia sets Server Time
3 Feb 2023 05:27:48 EST (-0500)
  Mandelbrot and Julia sets (Message 1 to 3 of 3)  
From: Francois LE COAT
Subject: Mandelbrot and Julia sets
Date: 29 Nov 2022 12:18:38
Message: <63863eee$1@news.povray.org>
Hi,

Here is a part of Mandelbrot fractal set in 3D with my software:

	<https://www.youtube.com/watch?v=Yf7q2KdAS-4>

In Eureka 2.12 the function is julia(x-0.1562+i*(y+1.0323),0)

of distances algorithm. The function julia(z,z') corresponds to
the Mandelbrot set when z varies, and Julia when z' varies.

Here is a part of Julia fractal subset in 3D with my software:

	<https://www.youtube.com/watch?v=NIJSr7CsLR0>

In Eureka 2.12 the function is julia(-0.82+i*0.18,y*exp(i*x))
plotted in [-PI/2,PI/2][0,PI/2] The 3D is obtained with the
approximation of distances algorithm. The function julia(z,z')
corresponds to the Mandelbrot set when z varies, and Julia when
z' varies.

The surfaces were exported from Eureka 2.12 in 3D ".TRI" format and
transformed into a POV-Ray script with `tri2pov.ttp`. The same move
around the surface is performed, with rotations of one degree. This
is an illustration of the export possibilities of Eureka 2.12 =)

I wish you will appreciate...

Best regards,

-- 

Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/


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From: Francois LE COAT
Subject: Re: Mandelbrot and Julia sets
Date: 22 Dec 2022 17:00:07
Message: <63a4d367@news.povray.org>
Hi,

Francois LE COAT writes:
> Here is a part of Mandelbrot fractal set in 3D with my software:
> 

> 
> In Eureka 2.12 the function is julia(x-0.1562+i*(y+1.0323),0)

> of distances algorithm. The function julia(z,z') corresponds to
> the Mandelbrot set when z varies, and Julia when z' varies.
> 
> Here is a part of Julia fractal subset in 3D with my software:
> 

> 
> In Eureka 2.12 the function is julia(-0.82+i*0.18,y*exp(i*x))
> plotted in [-PI/2,PI/2][0,PI/2] The 3D is obtained with the
> approximation of distances algorithm. The function julia(z,z')
> corresponds to the Mandelbrot set when z varies, and Julia when
> z' varies.
> 
> The surfaces were exported from Eureka 2.12 in 3D ".TRI" format and
> transformed into a POV-Ray script with `tri2pov.ttp`. The same move
> around the surface is performed, with rotations of one degree. This
> is an illustration of the export possibilities of Eureka 2.12 =)
> 
> I wish you will appreciate...

Here is corresponding Julia and Mandelbrot fractal sets with
Mathematica software, in the attached "fractal.gif" picture.

The Mandelbrot set is the same, except the colormap. But for
the Julia subset, I draw julia(-0.82+i*0.18,y*exp(i*x)) with
my software, and Mathematica draws julia(-0.82+i*0.18,x+i*y).

I don't know if there is this kind of transform in Mathematica?

Maybe someone of you all, can help?...

Merry Christmas.

Best regards,

-- 

Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/


Post a reply to this message


Attachments:
Download 'fractal.gif' (100 KB)

Preview of image 'fractal.gif'
fractal.gif


 

From: Francois LE COAT
Subject: Re: Mandelbrot and Julia sets
Date: 11 Jan 2023 09:51:20
Message: <63becce8@news.povray.org>
Hi,

Francois LE COAT writes:
>> Here is a part of Mandelbrot fractal set in 3D with my software:
>>

>>
>> In Eureka 2.12 the function is julia(x-0.1562+i*(y+1.0323),0)

>> of distances algorithm. The function julia(z,z') corresponds to
>> the Mandelbrot set when z varies, and Julia when z' varies.
>>
>> Here is a part of Julia fractal subset in 3D with my software:
>>

>>
>> In Eureka 2.12 the function is julia(-0.82+i*0.18,y*exp(i*x))
>> plotted in [-PI/2,PI/2][0,PI/2] The 3D is obtained with the
>> approximation of distances algorithm. The function julia(z,z')
>> corresponds to the Mandelbrot set when z varies, and Julia when
>> z' varies.
>>
>> The surfaces were exported from Eureka 2.12 in 3D ".TRI" format and
>> transformed into a POV-Ray script with `tri2pov.ttp`. The same move
>> around the surface is performed, with rotations of one degree. This
>> is an illustration of the export possibilities of Eureka 2.12 =)
>>
>> I wish you will appreciate...
> 
> Here is corresponding Julia and Mandelbrot fractal sets with
> Mathematica software, in the attached "fractal.gif" picture.
> 
> The Mandelbrot set is the same, except the colormap. But for
> the Julia subset, I draw julia(-0.82+i*0.18,y*exp(i*x)) with
> my software, and Mathematica draws julia(-0.82+i*0.18,x+i*y).
> 
> I don't know if there is this kind of transform in Mathematica?
> 
> Maybe someone of you all, can help?...
> 
> Merry Christmas.

Here is a video from Julia subset drawn with my Eureka 2.12 soft:

	<https://www.youtube.com/watch?v=uA20AhHiKc4>

It is using the ARAnyM GNU/GPL ATARI virtual machine under macOS.

Happy New Year.

Best regards,

-- 

Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/


Post a reply to this message


Attachments:
Download 'fractal.gif' (100 KB)

Preview of image 'fractal.gif'
fractal.gif


 

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