algorithmic modeling for Rhino

Andrew Heumann
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Andrew Heumann's Discussions

Which Scripting Language should I learn? C#, VB.Net, or Python?
4 Replies

Started this discussion. Last reply by konrad k sobon Mar 30.

Issues with unusual Color Spaces
1 Reply

Started this discussion. Last reply by Fred Becquelin Jan 28.

Ins and Outs of Undo
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Started this discussion. Last reply by Daniel González Abalde Jan 26.

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Latest Activity

Nenov Ivo commented on Andrew Heumann's group Doodlebug
"First, thanks to release those plugins freely ! And second, I was wondering how you achieve something like this animation ? I downloaded the plugin but I really don't understand a thing..."
21 hours ago
Samuel Wilson commented on Andrew Heumann's group Human
"Andrew - thank you. I should be able to figure something out now."
Andrew Heumann commented on Andrew Heumann's group Human
"Hi Samuel - this is expected behavior. Only objects in Rhino have attributes - once you move your curves you're actually making a new copy that only exists in grasshopper, and thus has no attributes. Is there a reason you cannot use the…"
Samuel Wilson commented on Andrew Heumann's group Human
"I'm having an issue with accessing object attributes after using the Move component - after a set of curves is moved by a set of vectors, attaching the resulting geometry to the ObjAtts component results in an error "1. Solution…"
Andrew Heumann replied to Chapulin Colorado's discussion turn off same components
"Yup, this is possible with Metahopper. Connect an instance of the component you want to toggle to the "Objects of Same Type" component, and then wire the output of that to "Hide/Show Object Preview." Set the second input of that…"
Andrew Heumann liked Mateusz Zwierzycki's photo
Anwesh Gangula liked Andrew Heumann's profile
Andrew Heumann replied to Tomas Vinkevicius's discussion C# group / ungroup
"Here's an example c# script that shows how to create a group:  private void RunScript(List<GeometryBase> x, object y, ref object A) { GH_GeometryGroup grp = new GH_GeometryGroup(); var goos = x.Select(m =>…"
Andrew Heumann replied to Tomas Vinkevicius's discussion C# group / ungroup
"I think he means GH_GeometryGroups not GH_Groups"
Thomas Helzle liked Andrew Heumann's video
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Siemen liked Andrew Heumann's video
Michael Tumminello commented on Andrew Heumann's group Doodlebug
"In response to the COM errors, I Just ran into that issue today.  I am using a virtualized version of Illustrator.  I installed a trial version of illustrator on my local machine and the tool worked correctly, no COM error.…"
Andrew Heumann replied to Ian LeBlanc's discussion export scribble comments to text file?
"metahopper lets you do this too. the text output of the 'Get Scribbles' component gives you all the text in all the scribbles in the document. "
Oct 21
Andrew Heumann replied to Ryan Grande's discussion Nested Blocks
"the "InstanceDefinitions.Add" method has an overload to accept a List<GeometryBase> and a List<ObjectAttribute>"
Oct 18
Andrew Heumann replied to Ryan Grande's discussion Nested Blocks
"If you have an existing block instance somewhere, you need to get the id of its definition, and then the transform it's been placed with. See below: private void RunScript(Guid x, object y, ref object A) { //Get a reference to the block in…"
Oct 18

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Andrew Heumann's Blog

Human UI Webinars - Beginner and Intermediate

I'm excited to announce I'll be teaching two upcoming Performance.Network webinars on my plug-in, Human UI for Grasshopper. Learn to create professional user interfaces for your Grasshopper scripts!

Sign up today - space is…


Posted on June 28, 2016 at 9:25am

Auto-Document GH Libraries

I wrote a little script for myself that I thought might be useful to other GH developers or teachers. Feed it a component from any library (such as a plug-in you're developing), and it will list and describe all the components in that library. It can also generate a markdown-formatted text file,…


Posted on January 10, 2016 at 11:34am — 6 Comments

Create Snippets with Grasshopper

Grasshopper by default allows you to save individual components and clusters as "user objects," which can be re-used over and over again. However, sometimes you want to save a group of components without clustering them - like a component with pre-defined value lists or sliders attached, or special configurations with plugins like kangaroo, honeybee, or anemone.

The attached script lets you do just that - create a user object that can automatically place multiple components at…


Posted on October 15, 2015 at 7:48pm — 11 Comments

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 — 17 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 — 1 Comment

Comment Wall (11 comments)

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At 7:48pm on February 29, 2016, xiejeff said…

HI Andrew,

could you add crv1 pt1 srf1 to the control panel?Question.rarThe work flow is:rhino -->control panel --> grasshopper

At 11:31am on November 9, 2015, Ding said…

Hi Andrew,

I am trying to use "Render Text to Screen" to visualize texts in the Rhino viewports other than "Perspective, Top and Back", but it doesn't work. (it only works in "Perspective, Top and Back" viewports on my laptop.)

Could you please let me know what could be the problems? Thank you very much in advance!

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 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 :) 





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