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what is the definition of surface relaxation?

Replied 15 hours ago

Rheotomic Surfaces: Need Help to Generate Streamlines

Replied Mar 9

Rheotomic Surfaces: Need Help to Generate Streamlines

Replied Mar 9

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Daniel Piker's Page

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Daniel Piker replied to William Su's discussion 'what is the definition of surface relaxation?'

I think you will find more results if you try searching for Dynamic relaxation

15 hours ago

Daniel Piker replied to JAK's discussion 'Rheotomic Surfaces: Need Help to Generate Streamlines'

This paper: http://people.bath.ac.uk/abscjkw/OrganicForms/NsugbeWilliams.pdf

on Tuesday

Daniel Piker replied to JAK's discussion 'Rheotomic Surfaces: Need Help to Generate Streamlines'

Hi Jakob, I'm afraid I can't actually share that definition now for commercial reasons. I will be publishing a mathematical paper on the technique at some point though. Sounds like you are along the right lines anyway. Also, if you are using somew…

on Tuesday

Arthur Mamou-Mani commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

Thanks Daniel! Looking forward to the release.

on Tuesday

taz commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

vein width looks fun too... From the paper: r^n_parent = r^n_child1 + r^n_child2 In the original formulation of Murray’s law, n = 3

on Monday

taz commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

It's also interesting to see how with multiple seeds there's a boundary "seam" effect. Both example cases that you linked too (with multiple discrete proximity zones) are way cooler than just a regular typeface.

on Monday

Daniel Piker commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

Thanks guys, glad you like it. Taz - Yeah, their work is really nice and was one of my inspirations for trying DLA in the first place. They have made several cool variations on the algorithm. I think something like this would be mainly a question of…

on Monday

taz commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

Daniel, you've got to vein the letters! n-e-r-v-o-u-s Fun stuff!

on Monday

Tudor Cosmatu commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

amazing! but still looking forward to test the kangoroo beta-release! :P thx!

on Monday

Andrea Graziano commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

thx daniel!!

on Monday

ddelgiu commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

Daniel, it looks like awesome!!!

on Monday

Vittorio Menna commented on Daniel Piker's blog post 'Diffusion Limited Aggregation'

great... thanx daniel!

on Monday

Daniel Piker added a blog post

Diffusion Limited Aggregation

My main Grasshopper development these days is Kangaroo, which is nearing a beta-release, but in the meantime here's another little bit of physics based messing around from a while back that I felt like sharing. DLA is a simple algorithmic model of…

on Sunday

Daniel Piker replied to Tyler Zalmanzig's discussion 'Figure 8'

Why not just place a clockwise and anti-clockwise helix next to each other, then take one turn alternately from each: Or if you want to get mathematical about it, Bernoulli's Lemniscate has the simple parametric form: x=cos(t)/(1+(sin(t))^2) y=si…

on Sunday

Daniel Piker replied to Hernan Echevarria's discussion 'Remote control panel'

They are not working at the moment, as has been mentioned before in this thread By the way, as a general point - the Ning search function is useless. To avoid posting duplicate topics, it is worth searching this forum first using google to see if y…

on Sunday

Daniel Piker replied to Kai-Yu Yu's discussion 'i have a Question....'

There is a component called 'Clean Tree' (the picture of the cherries) which removes all the null items from the list. I think this might solve the problem.

March 5

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Project Kangaroo - Live 3D Physics for Rhino/Grasshopper

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Streamlines

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Daniel Piker's Blog

Diffusion Limited Aggregation

DLA is a

… Continue

Posted on March 7, 2010 at 4:19pm — 9 Comments

Kangaroo Physics - update

I have just posted some more videos and description of Kangaroo - the live physics engine I am developing - on my blog here:
http://spacesymmetrystructure.wordpress.com/2010/01/21/kangaroo/

Thanks for all the great… Continue

Posted on January 21, 2010 at 4:32am — 10 Comments

Project Kangaroo - Live 3D Physics for Rhino/Grasshopper

Project Kangaroo - Live 3D Physics for Rhino/Grasshopper from Daniel Piker on Vimeo.

Very early tests of my new project - a Physics engine working within Grasshopper and Rhino and allowing real-time interaction.

The intention is that the various types of form-finding and feedback this allows could inform and enable some new ways of designing structures.

It's… Continue

Posted on January 12, 2010 at 6:30pm — 9 Comments

JellyFish (Magnetic Displacement 3D)

A generalisation of my old 'Magnetic Displacement' definition to 3D, with some improvements.

See my blog for further details and download:… Continue

Posted on October 22, 2009 at 10:00am — 2 Comments

Medial Axes

I've just made a short post on my blog about medial axes.

Here is the definition file:… Continue

Posted on October 5, 2009 at 6:22am —

Comment Wall (7 comments)

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At 4:58pm on March 3, 2010, Mårten Nettelbladt said…: Ok, cool!

At 3:23pm on March 3, 2010, Mårten Nettelbladt said…: Hi Daniel! For the Kangaroo, do you have any plans for doing inflated shapes? It would be cool!
I guess it would be interesting to have both stretchy and rigid materials. I made a hands-on test once: http://www.omkrets.se/inflated/ It's a plastic bag, which means it's not stretching, but it will wrinkle and thus get double curved.
Here are some examples of inflated shapes that stretch: http://farm4.static.flickr.com /3288/3153404777_eea3e7b0d5.jpg (Swedish artist Lars Englund)
What do you think?

At 8:47am on January 28, 2010, Ruggero Gabbrielli said…: Better than Weaire-Phelan? Maybe.

At 12:52pm on June 8, 2009, Bartosz Wilk said…: Hi, Daniel i want to create a geodesic dome but i have no clue how to strat. i found a topic where you showed your dome but definition doesnt work on my grasshopper. can you send me a picture of this definition?

Thanks in advance
Koyot

At 1:04pm on June 2, 2009, Gilles Retsin said…: Hi Daniel, I think I've got a question which is really suitable for you: Do you know if it's possible to generate a Costa Minimal Surface in Grasshopper? I had a look at the function with a mathematician-friend, but he told me it was involving complex numbers (weierstrass function) and grashopper propably can't calculate this. Any ideas?

At 5:22pm on May 29, 2009, Bob McNeel said…: Hi Daniel,

It would be great if you posted a few gallery entries with some links to posts on your amazing blog. It would great if more people knew about it.

Thanks,

- Bob