algorithmic modeling for Rhino

Chris Mackey
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Mismatch Between Rhino Model Tolerance and Internalized GH Geometry Tolerance
3 Replies

Greeting Grasshopper Gurus,I just wanted to put forward a feature request that has caused so much pain in coordinating GH files with the community that I have labeled it as a bug. Whether it is a bug…Continue

Started this discussion. Last reply by franco ferreiro Mar 13.

Trouble Displaying Meshes and Breps at the Same Time
7 Replies

Hello Wonderful Developers of Grasshopper!I have noticed a peculiarity in the display output in the Rhino scene when there are both meshes and breps previewing in the scene.  Below you can see an…Continue

Tags: Viewport, Rhino, brep, preview, mesh

Started this discussion. Last reply by Dimitrios Papadopoulos Feb 11, 2015.

Change Preview Color of an Output
2 Replies

Hi there.  This post on turning the preview on and off for python component outputs was extremely helpful:…Continue

Tags: Color, Preview, Geometry, Output, Component

Started this discussion. Last reply by Chris Mackey Jun 24, 2014.

Differening Results With GHPython BooleanIntersect
14 Replies

Hello,I have been trying to code a number of components using GHPython, which involve a BooleanIntersect operation.  As the attached file shows, I have been getting desperate by trying out a bunch of…Continue

Tags: Common, rhinoscript, Rhino, Intersect, BooleanIntersect

Started this discussion. Last reply by Chris Mackey Feb 26, 2014.


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At 2:29pm on October 3, 2017, Angelo Figliola said…

Hi Chris,

I'm running a daylight's simulation of an office and i would like to try the performance of light diffusing materials. I know that honeybee can import the .xml files and if i remember well Okalux has shared this files. Where can i find the files?

Thanks in advance,


At 7:28pm on September 12, 2017, Aziz BOUKARA said…

Hi Chris;

I'm running your example shown in your presentation on Youtube, until the presentation all things are OK, but from the  (number 8)


I get some error cause some components are different 

Thanks in advance. 

Merci par avance.


At 7:48am on June 8, 2017, Angelo Figliola said…

Hi Chris,

I am in trouble with the preparation of the model for the energy analysis with honeybee. To better explain the design concept i will attach a jpeg file and the .gh file. The idea behind is quite simple: i have an adiabatic room, so no sun exposure, and a surface expose on the south. This surface is discretize by nine opaque's panels, A in the jpeg file, and three glass surfaces, B.

I set up the model in this way:

- five adiabatic surface;

- two different type of materials for glass (B) and opaque part (A) of the surface.

The problem seems  to be after the Honeybee Create Zones component. If i give the same material, glass, to hall the surfaces it works fine.

I cannot identify the problem with this process. Can someone help me?

Thanks in advance!



At 2:15pm on April 27, 2017, Ivan Cholakov said…

Hallo, Chris!

I have a question about the paid learning tutorials of Ladybug and Honeybee on Vimeo.

I will purchase 10 of them (this is how much my university grant covers). But I am not sure if some episodes aren`t covering the same topics.

Ep.27: "LadyBug Parametric Climate Analysis" seems to be similar to Ep. 1 & 2: "Ladybug Climate Analysis Workshop Part I & II". 

Ep. 31: "HoneyBee for Energy Analysis" sounds like Ep. 5 & 6: "Honeybee Energy Modelling Part I & II".

If the contents of these are similar to one another, i will just choose other videos from the list. There are enough goodies.

Thank you in advance!



At 8:39am on April 26, 2017, sepehr seyedian said…

Hello Chris

When we are creating Honeybee_Add to EnergyPlus Library where are they being saved ( I mean in local Disc c )?

If by coincidence I use the name which is already exist in EnergyPlus library will the original data be replaced?

Thanks in advance.

At 4:00am on April 18, 2017, Angelo Figliola said…

Hi Chris,

I am in trouble with the Honeybee_Solve Adjacencies component (the connection between internal zone and a ground floor) and i was not able to find the error in the workflow. There is something in the model that i cannot recognize as an error. Can someone help me? I am going crazy. The reed baloon says just this "1. Solution exception:bce01e33-8f6a-46ac-8de9-d1d1f728b0d0".

I have tried to modify the tolerance in Rhino as suggested by Abraham but it doesn't work. I really don't know where is it the problem.

Attached you can find the file with all the data internalized.

Thanks in advance.

At 2:22pm on February 21, 2017, Doaa said…

Hi Chris,

I have rented and been watching your workshops on Performance network and I came across this problem..

HB glazing isn't recognizing the window.. 

Could you help me with that..



At 11:33pm on November 12, 2016, leila pasandi said…

Hello Chris

I have whritten a discussion but nobody answers it.I hope you know the answer.

It is here:

I have a problem with my analysis. I want to analyze the floor of an interior room in a building for radiation and daylight autonomy. Radiation comes from energy and the unit is kwh/m2. So energyplus should analyze this, and I need to model my building with all of the thicknesses of interior walls and exterior walls. And I should give EP materials to my model. Am I right?

And for Daylight Autonomy analysis I need to give RAD materials to my model. So for this analysis Do I need to give the thicknesses of interior walls and exterior walls?

I don't know where I am wrong!!

If you know anything about this please help me


At 3:58am on September 20, 2016, Marcello_t said…

Thank you Chris!

At 5:42am on September 18, 2016, Marcello_t said…

Hi Chris!

I am following your lessons on your Youtube channel Very interesting and clear.

Thank you.

I have a question for you: is it possible to set an analysis period on the 3D Chart component? I would like, for example, to visualize only the dry bulb temperatures in summer...

Thank you!



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