DIVA for Rhino

Information

DIVA-for-Rhino is a plugin which runs thermal, daylight, solar radiation, and glare simulations. Our goal is to bring validated environmental simulations directly to the conceptual design environments of Rhino and Grasshopper.

Website: http://www.diva4rhino.com
Location: Boston, Minneapolis, New York
Members: 250
Latest Activity: on Monday

Discussion Forum

some errors 4 Replies

i get a few errors i don't know if they are really severe or just a minor errorIDF file written: C:\DIVA\Thermal\Grasshopper\Projects\analyzethisscalewinter5.0\analyzethisscalewinter5.0.idfE+ batch…Continue

Started by kytap. Last reply by kytap May 23.

Automate multiple simulations 3 Replies

Hi All,I am running a climate based daylight simulation for each floor of a multi-story building. A slider controls the floor that is being analysed (and helps generate a unique file name for the…Continue

Started by Elliot Glassman. Last reply by Elliot Glassman Apr 5.

Environmental Performance Workshop | Diva + GH @ Facades+

Join us for…Continue

Tags: CEU, Training, Workshop

Started by GIL AKOS Mar 27.

importance of vectors / nodes 1 Reply

I am trying to simulate two surfaces (annual irradiation analysis). One surface will be divided, the other one will not be divided (see script). I have some problems with getting good results. The…Continue

Started by jkanters. Last reply by jkanters Mar 6.

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Comment by Jeff Niemasz on April 5, 2013 at 4:14pm: Thomas,

We would need more information to troubleshoot - Did you already specify a locations, nodes, and material before you clicked the metrics button? Did you go through the instructions on in the tutorial or use and of the instructional videos? Check out the www.diva4rhino.com site for the tutorial. If you are still getting the error with the DIVA toolbar in rhino I recommend posting a comment in the DIVA for rhino section of the diva4rhino site as this part of the plugin does not use grasshopper, maybe with a screenshot and uploading your model.

Hope that helps,

Jeff

Comment by Thomas Walser on April 5, 2013 at 11:22am: Hi everybody,
I just got started with Diva, making the 'default' tutorial.

1. I set up the scene

2. When I press the 'Metrics' button to start the calculation I always get a runtime error>>

________

Source: Runtime error in Microsoft VBScript

Error: Index outside valid range: '[number: 1]'

Line: 95

Char: 13

Code:

________

I run Rhino 5 Evaluation x64 (I used the file from the 64 bit folder to install DIVA)

Anyone knows, what I do wrong?

Cheers,

Thomas

Comment by Jon Sargent on November 2, 2012 at 5:36pm: M NICK -- Add the following line to the output control file:

Output:Variable,*,Zone Mean Radiant Temperature,hourly; !- Nickname=MRT [C]

Assuming you have the latest version of DIVA, the output control file will be here: C:\DIVA\Thermal\Grasshopper\IDF_Components\v2.005\02_output_control.idf

After saving the file, the next Viper component you drop on the Grasshopper canvas should have MRT as an option in the Settings form under the Output Tab.

-Jon

Comment by M NICK on November 2, 2012 at 5:23pm: Hi,

Is there anyway that we can calculate Mean Radiant Temperature (MRT) by VIPER?

Thanks a lot

Comment by stefano vafiadis on October 30, 2012 at 4:05am: Hi Jon,

Thanks again for helping me!

I sent you the Ghs definition attached to this comment: i was trying to find out the problem and i simplified a little bit the shape, but it persist.

I really can't find any issue and Viper worked always perfectly.

I hope you will do!

Thanks again,

Stefano///

Viper_Th_An_Metaball_Error_V02.gh

Comment by Jon Sargent on October 29, 2012 at 6:06pm: Hi Stefano,

I'm not sure a single-zone thermal model is the right way to analyze your Metaball structure. Even if there were no internal partitions, the model would want to be divided into multiple convex zones, which, unfortunately, Viper cannot do.

The non-planarity warning is a separate issue. In principle, it shouldn't happen if your surfaces are planar. If you post the definition I can take a look.

Jon

Comment by stefano vafiadis on October 26, 2012 at 1:01pm: Hi everyone,

I'm trying to make the thermal analysis of a Metaball structure.

I modeled it with Grasshopper as a series of patches that follow the curve of the metaball and that work as ext. walls and planar surfaces on top as roofs and one under everything as a slab, all the structure is one single zone...

The issue is that when i run the Viper simulation it responds with an error message: "Geo can't be exported because it contains at least one non-planar surface".

So i checked with the "planar" command but none of the geometry figured out to be non-planar!

Can you please help me?

Thanks in advance,

Stefano///

Viper_Th_An_Metaball_Error.gh

Comment by florian poppele on October 2, 2012 at 8:41am: Hi Ignacio,

could you - or anybody else - be so kind and provide us with a gh-file to get started with DIVA? Especially how to achieve a shadow diagram with overlay of several sunpositions (see 3 posts before, from Igancios DIVA test) would be extremely helpful. Thanks a lot.

Comment by Jeff Niemasz on September 30, 2012 at 7:31am: Hi Thomas,

Check the range of values being produced by the component for solar irradiation and the domain L0 and L1 of the false-color component. If it is at the default of 1, then everything is going to be topped out at blue, try something like 1500.