POV-Ray : Newsgroups : povray.binaries.images : Dragonfly and Fibonacci (56k) : Re: Dragonfly and Fibonacci (56k) Server Time
3 Oct 2024 00:30:46 EDT (-0400)
  Re: Dragonfly and Fibonacci (56k)  
From: Alf Peake
Date: 3 Mar 2000 19:08:24
Message: <38c053f8@news.povray.org>
I was concentrating on the seeds, and the spiral patterns do not show very well here.
There is a 600*450 88k jpeg here which is better:
http://www.peake42.freeserve.co.uk/pix1/dragnfly.jpg
I believe the number of left and right seed spirals should be adjacent numbers in the
Fibonacci sequence.  I used phi=sqrt((5)-1)/2 to get seed angle and distance from
center.

I did hope no-one would count the petals but that was probably expecting too much on
this
server :-(
I'm one petal short of 89 as my ancient petals routine places them in pairs.

Alf


Peter Popov <pet### [at] usanet> wrote in message
news:23m=OJTmBEvmeWwcHjL9xrRNtC3t@4ax.com...
> On Thu, 2 Mar 2000 22:12:04 -0000, "Alf Peake"
> <alf### [at] peake42freeservecouk> wrote:
>
> >Been playing with 2 subjects - glass blobs in megapov, and Fibonacci's Golden
Ratio.
Put
> >them together here. Not easy finding a suitable background for glass stuff.
> >
> >Took 2.5 hours with Celeron 500 and megapov for dos.
>
> Very good!
>
> A minor remark, though. I can not see the whole sunflower so I can not
> tell, but in the real world, the number of left and right spirals in a
> sunflower petal are always members of the Fibonacci sequence. Is this
> what you're referring to?
>
>
> Peter Popov
> pet### [at] usanet
> ICQ: 15002700


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