algorithmic modeling for Rhino

Here is the slides:
And here is the videos:
Hi all,
1. Chris, Chien Si and I will present Ladybug and Honeybee at IBSA-USA NYC this Thursday (August 21st). The presentation will include some of the latest developments that we are working on. If you are interested to know more about some of the new developments and see some of the workflows and you are around New York then just stop by. If can't attend in person you can still watch the presentation online. Check the links below. (Make sure to register by Wednesday if you are attending in person.)
2. We would like to show some of the works that you have done with Honeybee and Ladybug during the presentation so if there is anything that you think is interesting and can be presented publicly send it to us at or just post it here. Make sure to let us know who do you want us to credit the image.
3. That's it for now. I copy the information about the presentation below and hope to see some of you there. Thanks for your help and support.

IBPSA-USA New York Regional Chapter presents:

Parametric Modeling Tools | Ladybug and Honeybee

Location: Thornton Tomasetti, 44 East 27th street (between Madison and  Park)


Date & Time: Thursday, August 21, 2014 - 6:00-7:30 PM.


6:00-6:30 PM Networking


6:30-7:30 PM   Ladybug and Honeybee

Mostapha Sadeghipour Roudsari, Thornton Tomasetti

Chris Mackey, MIT

Chien Si Harriman, Terabuild


7:30-7:45 PM Q & A

Click here to register**:


**Please register at least a day in advance if you wish to attend in person



Ladybug + Honeybee


Ladybug and Honeybee are open source environmental plugins for Grasshopper that help architects and engineers create an environmentally-conscious architectural design.


Ladybug imports standard EnergyPlus Weather files (.EPW) into Grasshopper and provides a variety of 3D interactive graphics to support the decision-making process during the initial stages of design. The plugin also provides further support for designers as they test their initial design options with radiation, sunlight-hour, and shading analyses. Integration with Grasshopper allows for an almost instantaneous feedback and, since the plugin runs within the design environment, the information and analyses are interactive.


Honeybee connects Grasshopper3D to EnergyPlus, Radiance, Daysim and OpenStudio for building energy and daylighting simulation.  The Honeybee project intends to make many of the features of these simulation tools available in a parametric way.  Just as users have made changes to geometry for years in Grasshopper, now users can parameterize system types, zoning schemes, schedules of operation, daylight sensor placement and controls -  all of the “hardcore” simulation parameters that have never been exposed to parametric modeling tools.


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Hi thanks for inviting us, 

Sound very interesting,

in Europe, it will be quite late (00:30-2:00 Berlin time) but will try not to miss this event!

Thank you very much!

Great stuff and many new features!

Butterfly looks really nice. Is it close to release?

Thanks. We will have a discussion about the next steps of development for Butterfly today. I will know better after the call. The prototype is working but it still needs more work before being released to public.

Here is the link to the slides: ( We will post a link to the video once it is uploaded by IBPSA-NYC.

Can you bug the IBPSANYC folks to please upload all of the past presentation vids, too? I tried, but to no avail ;D Use the force.

Hey Mostapha - that's a really great overview of all the amazing stuff you can do with Ladybug, Honeybee et al., thanks!

So here are the videos:

part 1:  - part 2:






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