algorithmic modeling for Rhino

Daniel Piker
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Daniel Piker's Groups

Daniel Piker's Discussions

xml comments in referenced dll - intellisense in scripting components
1 Reply

Started this discussion. Last reply by David Rutten Jul 31, 2013.

'Offset on Srf' strange behaviour
3 Replies

Started this discussion. Last reply by Tom Jankowski Apr 24.

Random numbers aren't...
1 Reply

Started this discussion. Last reply by Robert Vier Dec 27, 2012.


Daniel Piker's Page

Latest Activity

Moonbeast commented on Daniel Piker's group Kangaroo
"Does anyone have any ideas for how to create a vortex force in Kangaroo2 similar to the component in K1?"
Daniel Piker replied to Matthew Johnson's discussion Number Comparison error
"Hi Matthew, See these discussions for more on this…"
Matthew Casaverde replied to Daniel Piker's discussion Tensegrity structures in the group Kangaroo
"Hey Daniel. I'm sorry to bother you on such an old post, but I tried this script on the latest kangaroo and grasshopper and it says the file is corrupt. I then tried to recreate the script from scratch but the definition still does not…"
Daniel Piker replied to Joris Burger's discussion Timber gridshell bending simulation with Kangaroo
"Here's a starter for how to set this up in Kangaroo2. For preservation of the edge lengths I often find it works best to keep this constraint fairly loose during the first stages of form finding, and then crank it right up once it is close to…"
Daniel Piker replied to Joris Burger's discussion Timber gridshell bending simulation with Kangaroo
"Hi Joris, It sounds like this would work better if instead of anchors you use some different constraints which do not conflict with the grid edge lengths. For example, keeping the vertices of one edge on a vertical plane, and perhaps pulling the…"
Kyle replied to Daniel Piker's discussion Skeletal mesh
"Hi Ben,  I know this is literally 4 years later, but I'm trying to use these scripts and I'm wondering how you were able to get it to be rigidly defined by a cube. When I plug my geometry into the definition I get a skeletal mesh that…"
Daniel Piker replied to Chris Beffa's discussion What component is this?
"That's the remove duplicate points component from Kangaroo1. However there now exists a native grasshopper component for this called "Cull Duplicates""
Daniel Piker commented on Daniel Piker's blog post Animated gif encoding within grasshopper
"Hi AJ - do you have your still images saved with names like "name_001.png","name_002.png" and so on? Also - don't use numbers in the first part of the file name like "animation4name_001.png" or it will get confused…"
AJ commented on Daniel Piker's blog post Animated gif encoding within grasshopper
"not working for me any ideas why? i get 1kb gif file from the compiled images (from some reason it take a micro sec and say its done) thnx "
Daniel Piker replied to Anders Holden Deleuran's discussion Kangaroo2 - Solver GoalFunction Outputs in the group Kangaroo
"Thanks Ángel and Alex for the suggestions, I will have another go at making this clearer for the next release."
Adi commented on Daniel Piker's video

Circle Packing

"hi Daniel As shown in the video. i would like to have a set of radii which can be a parameter for circle packing using plankton mesh. Currently the output is circles with a wide range of radii.  i would really appreciate your help. Thank you"
Oct 14
K.Thajudeen commented on Daniel Piker's video

Kangaroo - new solver

"Amazing Job !"
Oct 11
Arpan Bakshi left a comment for Daniel Piker
"GhPython Workshop coming up this month. Tool developer Chris Mackey is teaching a live webinar titled - Making Your Own Python Components. More information and registration…"
Oct 10
David du Bellier liked Daniel Piker's video
Oct 9
Daniel Piker replied to Amanda's discussion 2D shapes collision definition (video by Daniel) in the group Kangaroo
"Here's an example file for this"
Oct 9
Daniel Piker replied to Grasshope's discussion how to draw lines between each pair of points for a group of points
"I've just read through this whole discussion and either I'm missing something, or this is all being made a lot more complicated than it needs to be! Just use  the cross reference component as above, but set to 'Lower triangular…"
Oct 9

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Daniel Piker's Blog

Animated gif encoding within grasshopper

Despite the age of the format, gifs remain a popular and very widely supported way to share small animations. The…


Posted on March 24, 2016 at 12:00pm — 9 Comments

Kangaroo 2.0 - Now out of the pouch and available for testing!

A few days ago I uploaded the first public work-in-progress version of the new Kangaroo (

I'm really excited to share this new release - which makes Kangaroo significantly more powerful and flexible.…


Posted on March 22, 2015 at 12:30pm — 13 Comments

Aether – simple speedy spatial fields for Grasshopper

Spatially varying fields, which associate a value (such as a number or a vector) to every point in space, have a wide…


Posted on December 16, 2014 at 8:01am — 34 Comments

Kangaroo wins at 1st ALGODeQ competition

ALGODeQ is an international competition for algorithmic design programs, held for the first time this year.

There were 190 entries from 43 countries, judged by a large panel of professors and practitioners from around the world, in a multi-stage process.

The original intent of the organisers had been to award a single Grand-Prix, with an award of 1 million Yen, but during the judging process it was decided to award multiple highest prizes in 3 separate categories.

It is a… Continue

Posted on November 4, 2014 at 1:18am — 46 Comments

MeshMachine update

A minor update to the remeshing component (read about the earlier release here)

This adds the option to also scale the triangle size by distance from the boundaries:…


Posted on June 9, 2014 at 4:30pm — 46 Comments

Comment Wall (36 comments)

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At 8:04am on October 10, 2016, Arpan Bakshi said…

GhPython Workshop coming up this month. Tool developer Chris Mackey is teaching a live webinar titled - Making Your Own Python Components. More information and registration at

At 5:54pm on May 20, 2016, SEAN TITTLE said…

Hi Daniel, 

I am having trouble turning a surface/mesh into a series of equal equilateral triangles.

I downloaded the latest Kangaroo but unfortunately some of the toggles have changed and whenever I open a script from these forums there are parts missing.

Can you provide me with some assistance? 

Thanks in advance!


At 12:57am on February 12, 2015, Levin said…

Hi, Danil. I saw a video on vimeo that's named "Grabbing interaction & adding elements". I'm curious what's the Screen capture software?

At 9:18am on December 30, 2014, rhinograsshopper2014 said…

Saludos de ecuador porfavor brindame ayuda deseo desarrollar window 500lux ayudame con informacion explicacion desarrollo cualquier ayuda es bienvenida gracias


Greetings from Ecuador brindame please help develop desire window 500lux help me with information explanation developing any help is welcome thanks

At 8:52am on December 13, 2014, Yadid Hadad said…

Hi Daniel, it seems to be like there is no working download lonk for you gH plugin Jellyfish.... Can u share it with me please?


At 8:04pm on May 20, 2014, reaction~~ said…

Hi Daniel~~

if you don't mind asking, how to install plankton~ i have same problem with kris leese.



At 3:36am on May 7, 2014, Elisabeth Puscher said…

hi daniel,

I have saved the file with internalized mesh, I hope you can open it now.

yes, i think these crossing-over problems on the pictures might be related on the scale factor of the edges.

however, if i coose a smaller scaling factor, i don't have this problems, but then the max deviation from the offset is very big.

Is there another way to get a better result for the offset?

thank you,


At 2:05am on May 5, 2014, Elisabeth Puscher said…

Hi daniel,

i have some questions about the reciprocal component and the optimization for tangency with kangaroo.

I found your example definition, but it doesn't work with my gemometry.

I want to create a reciprocal structure with an offset of 10cm (=rod diameter)

Can you explain, how the scale factor for the reciprocal component influences the quality of the result for the offset?

If i choose a small scale factor (e.g. 1.20), the max. deviation from the offset is veriy big. (9,8 cm)

If i choose a larger scale facotr (e.g. 2.00), the max. deviation from the offset is much smaller and better. (0,04 cm)

But then some points occure which are geometrically not possible. (see figure below)

Do you have any suggestions how to avoid this and to get better results?

Maybe you can have a look at my GH definition:

Thank you!!


At 9:58am on May 3, 2014, bianca cattozzo said…

Hi Daniel,

I`ve started to use grasshoper one week ago and I want to ask you about your reciprocal force`s diagram. How did you do it?

At 2:25am on May 22, 2013, peter said…

hi Daniel,

Hi have a propblem loading kangaroo - see error message below.

I did check that I have those to files in the library folder and both are unlocked.

Any ideas what it could be ?

many thanks,


Object: KangarooA (level 1)
Exception has been thrown by the target of an invocation.

Object: KangarooA (level 2)
Could not load file or assembly 'KangarooLib, Version=, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.



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