algorithmic modeling for Rhino

Andrew Heumann
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  • Seattle, WA
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possible to append component menu items to GH_Cluster?
2 Replies

Started this discussion. Last reply by Andrew Heumann Jun 24.

Access to Parent cluster object from inside cluster document
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Started this discussion. Last reply by Andrew Heumann Apr 27.

How to define per-GHA loading mechanism?
23 Replies

Started this discussion. Last reply by David Rutten Jan 27.

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Igor Mitrić Lavovski liked Andrew Heumann's video
Jun 26
Andrew Heumann liked Jens Pedersen's video
Jun 25
Andrew Heumann replied to Andrew Heumann's discussion possible to append component menu items to GH_Cluster?
"and there you have it :) Thanks David!"
Jun 24
David Rutten replied to Andrew Heumann's discussion possible to append component menu items to GH_Cluster?
"No indeed."
Jun 24
Andrew Heumann posted a discussion

possible to append component menu items to GH_Cluster?

I've been using a C# script that lives inside a cluster to control its displayed Message - it works quite well. I can gain access to the cluster object in the parent document and call methods on it.However, I can't figure out any way (from within a script inside the cluster) to add component menu items to that cluster. I've developed custom GHAs before and successfully overridden AppendAdditionalComponentMenuItems etc - is there any other mechanism to do this to a component menu at runtime? My…See More
Jun 23
Andrew Heumann liked Daniel Piker's video
Jun 22
Andrew Heumann replied to Philipp's discussion Parametric gradient
"I can't answer your question about HSV vs HSL - but here's an approach to dynamically creating gradients from a list of input colors. If you want all your colors evenly spaced, then you can just use the built in "interpolate"…"
Jun 21
Andrew Heumann replied to Vincenzo Reale's discussion set transparency of ghosted view via macro/python
"While there's some SDK access to display mode properties via Rhino.Display.DisplayModeDescription, the ghosted transparency display does not appear to be something you can modify. I could be wrong though - you might have better luck asking…"
Jun 21
William Carroll liked Andrew Heumann's photo
Jun 17
Andrew Heumann liked David Mans's photo
Jun 16
Andrew Heumann liked David Rutten's video
Jun 16
Andrew Heumann replied to Roger Sterling's discussion Mesh color data
"Yes, this should be possible. Do I understand that your mesh already have appropriate mesh texture vertices assigned to it? It would be great if you could upload your file. The following script works for my example - but it also assumes that your…"
Jun 15
Andrew Heumann replied to Brian Ringley's discussion Get left side values from Value List components
"this version will only look at a value list that's actually plugged in to your python script: list = [] for obj in ghdoc.ActiveObjects():     if ghenv.Component.DependsOn(obj):         try:      …"
Jun 12
Andrew Heumann replied to Brian Ringley's discussion Get left side values from Value List components
"list = [] for obj in ghdoc.ActiveObjects():     if obj.ToString()=="Grasshopper.Kernel.Special.GH_ValueList":         list = obj.ListItems lefts = [] for item in list:     lefts.Add(item.Name) a =…"
Jun 12
Andrew Heumann liked Nick Tyrer's photo
Jun 12
William Carroll commented on Andrew Heumann's blog post Wire Display Toggle Switch
"Just to followup, if you haven't noticed, it is impossible to pan around the canvas while you're click-dragging, so my usual workaround has been to zoom out/in until I reach my destination. Is this the typical solution to connecting…"
Jun 11

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Andrew Heumann's Blog

Wire Display Toggle Switch

There is an ongoing debate in my office between those who like to organize their definitions with hidden wires for the sake of cleanliness, and those who hate them because it makes definitions hard to debug. In order to sidestep any drama, I made a little script that lets you switch all the wires in a document between "Hidden" and "Faint." It will leave all wires set to default alone. 

Download it here: …


Posted on December 24, 2014 at 12:00pm — 16 Comments

Join NBBJ's Design Computation team!

Are you passionate about design computation? Are you a Grasshopper guru or deft with Dynamo? NBBJ’s Digital Practice group is seeking to expand our Design Computation team across the firm. We have offices in Boston, Columbus, London, Los Angeles, New York, San Francisco, Seattle and Shanghai, and are always seeking out the best and brightest talent.

The ideal person we are looking for:

…is an expert in the use of Grasshopper and/or Dynamo

…is comfortable in a…


Posted on August 18, 2014 at 7:40pm

Tweet2Form: GH-Powered Formalist Tweetbot

I just finished putting together a beta version of a little project. It's a tweetbot powered by a grasshopper definition. The bot transforms a cube according to a series of operations you specify, and then tweets a picture of the resulting form. There are currently 10 formal operations that the bot understands:





shearA (Shear angular)…


Posted on November 24, 2012 at 8:00pm — 9 Comments

Michael Graves, Digital Visionary: What Digital Design Practice Can Learn From Drawing

Check out my latest blog post, responding to Michael Graves’ recent article in the NYT, speculating on ways that digital design practices can learn from the way drawing functions as a design tool. …


Posted on September 10, 2012 at 11:22am — 14 Comments

Find and Replace in Grasshopper Documents

originally posted here

Since David Rutten added to GH the ability to set a default text panel background color, I’ve had my panels set to be white instead of the default bright yellow. But in all my old definitions, the panels remain yellow, and it drives me nuts. I was going through and changing them manually when it occurred to me that there was a much better way, based on a trick I saw David mention in a…


Posted on February 7, 2012 at 7:30am — 1 Comment

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At 9:13am 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 11:55am on April 24, 2013, djordje said…

Hi Andrew,
I see you are quite fluent in RhinoCommon.
Was RhinoCommon SDK your only source for learning it?
Thank you.

At 2:46pm on November 18, 2012, Dhruv Seth said…
At 3:07pm on September 26, 2012, Théo Mesnier said…

hi Andrew, I actually have a big problem trying to import rhino text objects to grasshopper to create a points cloud; fortunatly I found the solution in one of  your old posts...

but it doesn't work for me... certainly because of the new version of GH (0.9)... I'm using Rhino 4. I really need your help on it, I didn't find other solution anywhere else and don't know anything in scripts...  Thank you so much !

At 6:52pm on June 11, 2012, Mateusz Zwierzycki said…

nice works ! publish some more here

At 6:15am on November 9, 2011, Riyad Joucka said…

Hello Andrew;

Great work on the Origami simulation showed here:


just wondering if you can share the definition?

At 3:27am on October 26, 2011, Huzefa Ali said…
At 2:18am on October 22, 2011, Huzefa Ali said…

hi Andrew,

i need help editting the qvoronoi defination by demitrie. When ever i give my points rather than the random points, the qvoronoi turns red and the defination fails to work. Also that i need to give the bounding box to be my site. how is that possible? Its my thesis year and im running out of time. I am new to grasshopper and seek guidance. Thankyou.

At 11:44am on February 26, 2011, Ángel Linares said…

Cool!, thanks for sharing concepts :D I'll try that :) 



At 9:22am on February 13, 2011, Ángel Linares said…
Hey man, could you share the definition that Daniel share with you to make rigid origami stuff with Kangaroo?


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