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Daniel Piker's Discussions

Skeletal mesh
57 Replies

Started this discussion. Last reply by enrique soriano on Tuesday.

Feature suggestion: large calculation warning
20 Replies

Started this discussion. Last reply by David Rutten Apr 17.

3d convex hull or Delaunay ?
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Started this discussion. Last reply by Harri Feb 22.

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Daniel Piker's Page

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Sjors de Graaf joined Daniel Piker's group

Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

6 hours ago

55 Comments

Daniel Piker replied to David Rutten's discussion When is the next release of Grasshopper?

"This all sounds great, looking forward to the new version. If it is not too late, I have a few requests for some hopefully minor changes/additions : In Document Preview Settings, the option to colour surface edges/isocurves differently from the…"

yesterday

Charlotte and lucas cañada joined Daniel Piker's group

Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

Wednesday

55 Comments

enrique soriano replied to Daniel Piker's discussion Skeletal mesh

"Thanks for the node Daniel other kind of uses:http://www.flickr.com/photos/25714527@N06/7290375338/"

Tuesday

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Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

Monday

55 Comments

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spaceframe

Monday

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Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

May 26

55 Comments

Maxim Baraliuc joined Daniel Piker's group

Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

May 25

55 Comments

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tri to quad mesh

May 24

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hyperbolic surface buckling

May 24

Ivan Kushnarenko joined Daniel Piker's group

Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

May 24

55 Comments

Daniel Piker replied to Fernando Conti's discussion How to remove all duplicate curves from a 2D voronoi cell structure?

"The Kangaroo (not Karamba) removeduplicateline component will remove duplicate curves as well as lines. (Actually it will remove any curves which share endpoints with a curve already in the collection, whether or not they match along their length)"

May 24

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Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

May 23

55 Comments

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Rigid Origami with Kangaroo

May 22

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Kangaroo

Kangaroo is a Live Physics engine for interactive simulation, optimization and form-finding directly within Grasshopper. See More

May 22

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Kangaroo - tensegrity

May 21

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Daniel Piker's Videos

hyperbolic surface buckling

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3d camera control via phone

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Flight of the Grasshopper

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Daniel Piker's Blog

Rheotomic surfaces and flowline generation tool

Around 3 years ago I wrote an essay on my blog about what I called rheotomic surfaces - a type of surface I had developed related to fluid flow and electrostatics, and a technique for their generation…

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Posted on February 19, 2012 at 12:53pm — 25 Comments

New Kangaroo - mesh collisions and separate XYZ constraints

Hi all,

I'm putting this up for anyone who wants to test it out before I make it the main release on the Food4Rhino site. Let me know if it works and if not what errors you get.

This contains a fix for the Mesh Collision component, and also a new sort of Anchor where you can toggle separate booleans for constraint in x, y or z of a point.

(Also note that like the AnchorSpring component this connects to the ForceObjects input of the main Kangaroo component rather…

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Posted on December 31, 2011 at 3:13pm — 7 Comments

New Kangaroo, new forces, new tutorials

There's a new version of Kangaroo available :

http://www.food4rhino.com/project/kangaroo

It contains numerous new additions, described in more detail here:

http://www.grasshopper3d.com/group/kangaroo/forum/topics/new-release-and-examples

Also - a while ago I taught a workshop using Kangaroo at Aarhus…

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Posted on November 30, 2011 at 3:00pm — 9 Comments

Metaballs in Kangaroo

A little test of metaballs / implicit surfaces in Kangaroo.

Because this is force based it is possible to generate a nicely structured mesh instead of the messy triangles from marching cubes (it's also fairly quick)

I plan to upload the new Kangaroo with this feature (and several other additions) in the next few…

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Posted on November 8, 2011 at 4:00pm — 7 Comments

Kangaroo updated for Grasshopper 0.8.0051

Version 0.066 of Kangaroo is now available:

http://www.food4rhino.com/project/kangaroo

This should now be compatible with Grasshopper 0.8.0051

One of the new additions is the hinge force, which allows you to control the angle between any pair of connected triangles (The angle is measured in the plane normal to their common edge, so you can control the direction)

If the rest angle…

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Posted on August 23, 2011 at 6:49pm — 3 Comments

Comment Wall (24 comments)

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At 3:39pm on March 25, 2012, Iker Mugarra Flores said…: Hi Daniel,

(Flat_circlepacking_ikerImage.gh)

I have manage to adapt this definition that you worked on(circle packing), o an image-field that defines the radii of the circles, but my main target is to optimize the radii for a better arrangement and population within the image-field allowing the radii to change and adapt during the simulation... some one posted in you tube a great video where they show this plus other interesting packing logic's....

here is the link:

http://www.youtube.com/watch?v=SSWudanJc7c&feature=related

any suggestions about to achieve similar results as image base/fighting for space....?

thanks

Iker

At 8:03pm on December 18, 2011, Jerome said…: I created a group of mesh in Grasshopper, then I turned the "FLOOR" to true, but the meshes didn't stop at floor level. Could anyone help to see what's wrong with the meshes? This is the link to the questions and the files. Thanks!

http://www.grasshopper3d.com/forum/topics/meshes-penetrate-through-the-kangaroo-floor?xg_source=activity

At 2:09pm on November 30, 2011, Nick Tyrer said…: Thanks dude. ive been giving it a go, really neat little program.

At 11:40am on November 28, 2011, Nick Tyrer said…: Hey Daniel

A bit of a random question, (non gh related). At your Shape to Fabricate presentation i believe you mentioned home-made 3d scanning your workshop's panels to see how accurate they were. Just wondering what software you used for this?

I was gutted when i found out too late that they had reduced prices of the workshops. Yours and gregs was really fascinating!

Thanks,

Nick

At 6:45am on November 16, 2011, Travis Lydon said…: Hi Daniel,

I have a few question for you regarding stiffness tolerances for surface relaxation in Kangaroo. I'm attempting to use kangaroo as a form-finder for a cable-net clastic structure which i'm using to skin my design studio building. I'm trying to use varying degrees of stiffness in separate curve sets to create somewhat of a 'seam' definition on the surface of the processed relaxation, and was wondering if there was a better way to approach it than what I've been doing. The curve sets I am referring to are labeled as the Diagonal Tension Cables and Ramp Pressure Curves in the Script. My problem is now occuring where the circulation ramp is protruding through the relaxed skin, I need to figure out how to create a reactionary force back on the skin to push it away from the ramps. Thanks in advance, I know it sounds confusing but I taught myself Kangaroo last night, andI have a feeling its an easy fix.

Single Kangaroo Relaxation - 3 Spring Tolerances Help.3dm

Single Kangaroo Relaxation - 3 Spring Tolerances Help.gh

-Travis

At 6:32am on November 15, 2011, Riyad Joucka said…: Hi daniel;

Im trying to pack breps together using an attraction force based on a length from their center points. the kangaroo battery is returning correct results and no errors but i get "An error occured in the display pipeline @ bla bla and no solution... help please?

At 2:16pm on November 14, 2011, Daniel Piker said…: http://dl.dropbox.com/u/26034251/s2f2011/planarity.gh

At 1:35pm on November 14, 2011, Daniel Piker said…: http://dl.dropbox.com/u/26034251/s2f2011/mesh_between_lines.gh

http://dl.dropbox.com/u/26034251/s2f2011/mesh_between_lines_mapper.gh

At 10:09am on November 14, 2011, Daniel Piker said…: http://dl.dropbox.com/u/26034251/s2f2011/fold_example.3dm

http://dl.dropbox.com/u/26034251/s2f2011/fold_example.gh

At 9:06am on September 3, 2011, Khizer Ishtiaq said…: Hi Daniel,

Is it possible using Kangaroo, to apply force from objects(using springs maybe) to a group of connected objects, without disturbing their hierarchy(relationship with their neighboring geometry)... these connected objects are inter-joined... the object themselves may or mayn't deform depending on the strength of force....if yes, how?

Thanks...