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Jörg  
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 More options Jan 10, 12:28 pm
From: Jörg <j.gma...@gmx.de>
Date: Sat, 10 Jan 2009 09:28:59 -0800 (PST)
Local: Sat, Jan 10 2009 12:28 pm
Subject: Cellular Automata
Hi,

did anyone tried Cellular Automata with grasshopper?

Joerg


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Balthazar  
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 More options Jan 12, 7:41 am
From: Balthazar <bsied...@gmail.com>
Date: Mon, 12 Jan 2009 04:41:32 -0800 (PST)
Local: Mon, Jan 12 2009 7:41 am
Subject: Re: Cellular Automata
Hi Joerg,

i'm also really interested in this possibility. So far i have only
been playing around with generating coordinates for boxes based on
other parameters but it would be much more productive if I could
assign a state to each box.

Can you let me know if you find out anything more? I will do the
same.

Balthazar

On Jan 10, 10:28 pm, Jörg <j.gma...@gmx.de> wrote:


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visose  
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 More options Jan 12, 8:37 am
From: visose <vic...@gmail.com>
Date: Mon, 12 Jan 2009 05:37:28 -0800 (PST)
Local: Mon, Jan 12 2009 8:37 am
Subject: Re: Cellular Automata
I got curious and read about it in wikipedia, very cool. I'd like to
recreate 'Conway's Game of Life' on GH, but right now i got some work
to do. It doesn't look too complicated but it requires a scripting
component since it requires looping. It won't be very efficient since
you can't draw every itineration of the loop. Instead, you'd have to
calculate from the initial state till the current time for every
'frame' you want to display (I think). I'll try this out on wednesday.

On Jan 12, 1:41 pm, Balthazar <bsied...@gmail.com> wrote:


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baldino  
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 More options Jan 12, 1:30 pm
From: baldino <jonas.bre...@gmail.com>
Date: Mon, 12 Jan 2009 10:30:56 -0800 (PST)
Local: Mon, Jan 12 2009 1:30 pm
Subject: Re: Cellular Automata
sorry visose, think i was a bit faster on this one,
i just posted a working definition of the Game of Life

i posted videos here:
http://www.vimeo.com/2803874
http://www.vimeo.com/2804735

and the definition here
http://groups.google.com/group/grasshopper3d/web/baldino_game_of_life...

On Jan 12, 2:37 pm, visose <vic...@gmail.com> wrote:


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BrentWatanabe  
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 More options Jan 12, 2:36 pm
From: BrentWatanabe <bwatan...@gmail.com>
Date: Mon, 12 Jan 2009 11:36:41 -0800 (PST)
Local: Mon, Jan 12 2009 2:36 pm
Subject: Re: Cellular Automata
videos are down...bandwitdh?

On Jan 12, 12:30 pm, baldino <jonas.bre...@gmail.com> wrote:


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Stan  
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 More options Jan 12, 2:44 pm
From: Stan <Stanislav.Vino...@gmail.com>
Date: Mon, 12 Jan 2009 11:44:31 -0800 (PST)
Local: Mon, Jan 12 2009 2:44 pm
Subject: Re: Cellular Automata
work for me... i think u combined the 2 videos in one link by
accident.

Awesome job! another reason i need to learn vb.net asap.

On Jan 12, 2:36 pm, BrentWatanabe <bwatan...@gmail.com> wrote:


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visose  
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 More options Jan 12, 5:41 pm
From: visose <vic...@gmail.com>
Date: Mon, 12 Jan 2009 14:41:51 -0800 (PST)
Local: Mon, Jan 12 2009 5:41 pm
Subject: Re: Cellular Automata
Nice one baldino, that was fast :P
I was just uploading a test to youtube:
http://www.youtube.com/watch?v=jZoi_L9RX3k
It was easier than i thought.

On Jan 12, 7:30 pm, baldino <jonas.bre...@gmail.com> wrote:


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AWillette  
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 More options Jan 13, 9:31 am
From: AWillette <aaron.wille...@gmail.com>
Date: Tue, 13 Jan 2009 06:31:13 -0800 (PST)
Local: Tues, Jan 13 2009 9:31 am
Subject: Re: Cellular Automata
Small world - a side project I'm currently working on is an art piece
based on the cellular automata/GoL, but opted to use Paracloud because
of the legwork I've been doing in Excel for GoL. Once I have something
worth posting I'll toss it up on my blog and throw a link out.

As research I'm reading Wolfram's A New Kind of Science, which I
recommend people pick up if they're interested in the topic. Its quite
a tome but it doesn't get bogged down language-wise.

On Jan 10, 12:28 pm, Jörg <j.gma...@gmx.de> wrote:


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Jörg  
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 More options Jan 15, 5:26 am
From: Jörg <j.gma...@gmx.de>
Date: Thu, 15 Jan 2009 02:26:42 -0800 (PST)
Local: Thurs, Jan 15 2009 5:26 am
Subject: Re: Cellular Automata
Hi,
Wolframs A new kind of science I love very much. There is a lot of
stuff to do.

I have done some scripting in Rhino. Today I think about to the
generation on Excel or to stay in VB and import it into grasshopper.
Didnt start yet, but in a few days.

Jörg

On Jan 13, 3:31 pm, AWillette <aaron.wille...@gmail.com> wrote:


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cgkahler  
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 More options Feb 6, 3:50 pm
From: cgkahler <kckah...@yahoo.com>
Date: Fri, 6 Feb 2009 12:50:27 -0800 (PST)
Local: Fri, Feb 6 2009 3:50 pm
Subject: Re: Cellular Automata
hi, i am an architecture student and I am very interested in exploring
cellular automata with grasshopper.  I had alot of luck with the
definition posted above but was wondering if it is possible to...

(1) create a three dimensional cellular automata

(2) specify the initial generation (which cells are on/off)

unfortunately i am just beginning to become familiar with these topics
and any help would be greatly appreciated


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David Rutten  
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 More options Feb 7, 6:31 am
From: David Rutten <da...@mcneel.com>
Date: Sat, 7 Feb 2009 03:31:16 -0800 (PST)
Local: Sat, Feb 7 2009 6:31 am
Subject: Re: Cellular Automata
Hi cg,

in theory it doesn't really matter how many dimensions you use for a
cellular automata, but there are physical constraints that you should
ponder. The amount of memory and processing time needed for an extra
dimension is not insignificant and may well prove too much. Typically,
algorithms that deal with CA store data in exceptionally efficient
ways, but data in Grasshopper has a larger memory footprint than data
inside pure DotNET or C++ environments and it also requires a lot of
type-testing. There's no way for the user to optimise the memory usage
of a Grasshopper network.

Initial conditions can be set up through a number of ways. You could
create geometry in Rhino which set initial conditions (for example,
put point objects inside each cell that you want to enable), or you
generate a list of numbers that identify the 'on' and 'off' state of
cells. You can then easily import this text using the 'Manage
Collection' feature on the Integer parameter.

--
David Rutten
da...@mcneel.com
Robert McNeel & Associates

On Feb 6, 9:50 pm, cgkahler <kckah...@yahoo.com> wrote:


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visose  
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 More options Feb 7, 7:21 am
From: visose <vic...@gmail.com>
Date: Sat, 7 Feb 2009 04:21:53 -0800 (PST)
Local: Sat, Feb 7 2009 7:21 am
Subject: Re: Cellular Automata
I problem i see with 3d cellular automata is how you visualize the
growth. A camera outside the 3d grid will have visibility quickly
blocked by the outer cubes. But you can also project a 2d grid in a 3d
surface and use 3d geometry for the cells like in the video i posted
above. For the initial generation i used two lists of numbers, one for
the x values and one with y values, but this is not very intuitive.
The method David suggests about placing points on the grid and then
finding out with cells correspond to the points would be the best
approach for ease of use, i think.

On Feb 7, 12:31 pm, David Rutten <da...@mcneel.com> wrote:


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Dan  
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 More options Feb 8, 2:06 pm
From: Dan <danielpi...@yahoo.co.uk>
Date: Sun, 8 Feb 2009 11:06:57 -0800 (PST)
Local: Sun, Feb 8 2009 2:06 pm
Subject: Re: Cellular Automata
Cool stuff guys

Another option would be to use a 2D continuous cellular automata - so
rather than just being on or off, each cell has a value between say, 1
and 100. Then at each iteration, each cell updates to some new value
based on an equation of its previous value and those of its
neighbours.
I was playing around with this in Processing a while ago,

take a look at the videos here: http://vimeo.com/album/41270
there's links to source code there too

I love how such simple code with just slight changes in the constants
of the equations can give such radically varied results.

In those animations the cell value is determining a colour, but what
would be really interesting would be to make it control Z
displacement. I didnt try this yet, because I havent learned any 3D
stuff in processing, but it might be easier in Grasshopper.

(I did try linking the cell value to a musical note - and it sounds
awful ! :
http://createdigitalmusic.com/2008/11/14/help-im-trapped-in-an-acid-c...
)

On Feb 7, 12:21 pm, visose <vic...@gmail.com> wrote:


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Jörg  
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 More options Mar 8, 11:05 am
From: Jörg <j.gma...@gmx.de>
Date: Sun, 8 Mar 2009 08:05:38 -0700 (PDT)
Local: Sun, Mar 8 2009 11:05 am
Subject: Re: Cellular Automata
Hi,

I write a little DOTNet Component (CA_2_5.ghx). See link below

http://grasshopper3d.googlegroups.com/web/CA_2_5.ghx?hl=en&gda=g-xnSz...

I am interested in continious CA. So I took the New kind of Science,
Wolfram, page 156ff. The CA Component gives you a number between 0 and
1 for each cell. You can change the grid of numbers of cells and time
steps. So the given value could be the height of a point or the radius
of a circle. The information could be linked to any geometry.  But
still the time of calculation is very big.

Dan, I have seen your work. I like it.

Jörg

On Feb 8, 8:06 pm, Dan <danielpi...@yahoo.co.uk> wrote:


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Jörg  
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 More options Mar 15, 1:57 pm
From: Jörg <j.gma...@gmx.de>
Date: Sun, 15 Mar 2009 10:57:16 -0700 (PDT)
Local: Sun, Mar 15 2009 1:57 pm
Subject: Re: Cellular Automata
Hi,

there is a video on youtube which presents the function of the ghx, I
already posted above.

http://www.youtube.com/watch?v=FSMj4gAW_dc

On www.attitudegeometries.wordpress.com I started my blog where I will
show some more information and ghx of Cellular Automata and
Geometries.

Jörg

On Mar 8, 4:05 pm, Jörg <j.gma...@gmx.de> wrote:


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Holly  
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 More options Mar 15, 2:32 pm
From: Holly <hhtam...@gmail.com>
Date: Sun, 15 Mar 2009 11:32:23 -0700 (PDT)
Local: Sun, Mar 15 2009 2:32 pm
Subject: Re: Cellular Automata
Hi,
 I am starting a project using the Principles of CA (cellular
automata) to construct an aggregation of modular units using
grasshopper (similar to this http://www.kokkugia.com/wiki/index.php5?title=RhinoScript_cellular_au...)
However, I am finding it difficult to get started......
This is what I am trying to achieve:
1) Create a cellular aggregation of modular units based on rules
(relationships, repetition, etc)
 2) Be able to change the modular unit geometry parametrically
 3) Output an 'instruction set' of how to construct the aggregation
[ ie. Cell 1 and Cell 2 are connected on face 'A' and 'D' ] This would
be in Excel for each cell.  This would entail naming each cell,
assigning it an orientation and connection to next named cell.
The concept I initially derived is using a bounding box for each cell
and assigning connection points on the Bounding Box at known
locations.  Imagine a Bounding Box where 4 of the faces have
connection points and so any modular unit which would fit inside this
bounding box would have these common connection Points. I would like
to use Cellular Automata to aggregate the modular unit based on Rules
which specify that each Cell connects at those Points on the Bounding
Box.
I would really appreciate any advice + suggestions on how this may be
achieved
Dave + Holly

On Mar 15, 1:57 pm, Jörg <j.gma...@gmx.de> wrote:


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Danny Dong  
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 More options Mar 24, 5:48 pm
From: Danny Dong <davislov...@hotmail.com>
Date: Tue, 24 Mar 2009 14:48:13 -0700 (PDT)
Local: Tues, Mar 24 2009 5:48 pm
Subject: Re: Cellular Automata
Has anyone had luck with finding a 3D CA rhino script?

It would be interesting to use a 3D CA script in Grasshopper while
having the flexibility to interchange the cell types

Since I am a very novice scripter I have been looking for a core 3D CA
script that I could manipulate, any suggestions?

thanks

On Mar 15, 2:32 pm, Holly <hhtam...@gmail.com> wrote:


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