algorithmic modeling for Rhino

Daniel Piker
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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, 2016.

Random numbers aren't...
1 Reply

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


Daniel Piker's Page

Latest Activity

Daniel Locatelli liked Daniel Piker's video
5 hours ago
peyman commented on Daniel Piker's video
7 hours ago
Daniel Piker commented on Daniel Piker's video
13 hours ago
Daniel Piker replied to Guido Nieri's discussion Spring + Coplanar with Kangaroo in the group Kangaroo
"Hi Guido, could you provide a bit more information, or where you have got to so far? Assigning different stiffness should be just a matter of inputting a different value with the line."
13 hours ago
Daniel Piker replied to Vinzenz Rauch's discussion Screencast (espacially for Kangaroo)
"Hi Vinzenz, You can connect a number slider to the 'On' input of Kangaroo, right click it and choose 'animate'. This generates a series of images, which you can assemble into a video using most video editing software. A simple…"
14 hours ago
peyman commented on Daniel Piker's video

Line-line interactions in Kangaroo

"Hi Daniel, Is there any definition or tutorial to learn how line line interaction component works? I surfed a lot on the net but couldn't find something. I just something to see how it works to make a collision between series of lines."
15 hours ago
Robb McDougle replied to Daniel Piker's discussion Circle packing definition in the group Kangaroo
"Many thanks Daniel... I got it running now. Looks like it will get me to where I need to go. I'll get back to you with any other thoughts. Robb"
Daniel Piker replied to Daniel Piker's discussion Circle packing definition in the group Kangaroo
"Hi Robb, You will need to set the referenced assembly to your own local copy of the KangarooSolver.dll by right clicking the C# component. Also, you may need to turn off the COFF loading option (on the Rhino command line type…"
Robb McDougle replied to Daniel Piker's discussion Circle packing definition in the group Kangaroo
"This appears to be exactly what I am looking for. BUT it fails with an error in the Solver component 1. Solution exception:Unable to cast object of type 'SphereCurveCollide' to type 'KangarooSolver.IGoal'. Rhino v 5…"
Daniel Piker replied to tore07's discussion Stuttgart train station
"I internalised the inputs after referencing them from Rhino. You can do this by right clicking the component and choosing internalise data. To do the reverse you can select the input points in Grasshopper, bake them into Rhino, then reference them…"
Jan 16
Daniel Piker replied to tore07's discussion Stuttgart train station
"Here's a start for this - "
Jan 16
Daniel Piker liked ng5 Alex's video
Jan 14
Daniel Piker liked Daniel González Abalde's photo
Jan 14
Timothy Tai replied to Daniel Piker's discussion Skeletal mesh
"Hi Daniel, Thank you for this great tool. I tried the component with the mesh attached, but it didn't see to work with either method for the center. Do you have any advice on this? Thanks a lot."
Jan 13
Daniel Piker liked phillip's video
Jan 13
Daniel Piker replied to Fabrizio De Paolis's discussion Circle packing around a circle with fixed and increasing/decreasing radiuses
" Something like this (def attached below)? I'd also recommend looking into circle inversion. It can be a powerful way of generating and transforming circle packings "
Jan 13

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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 — 35 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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