Hi everyone,

I'm quite new with DIVA and I already have a question for you, expert users.
I started using DIVA with Grasshopper since my main purpose will be to run optimization processes based on parametric modeling. My only doubt is: what's the smartest way of considering frames during the analysis?

I'll explain better what I mean. I have to model a zone where the exterior facade is all glazed, so just glass and metal frames (see the image attached). Do I have to assign a metal material to a "Construction Assembly" panel for the whole facade, and then subtract the glass surfaces using the "Window Unit" panel? Or do I just use a single "windows" surface for the whole facade and then in the "Window Unit" panel ther's a way to consider frames instead of having just a huge single glass panel in the Viper simulation?

A secondary question is: What's the point of using a "Window Unit" panel instead of just closing the zone volume with a "Construction Assembly" panel with glass material assigned? I mean, finally glass is just another material..and apparently in DIVA for Rhino there's no difference between a glazed surface and another generic material, you just pick it out from the list.

Thanks in advance for your help.

Tags: Frame, Grasshopper, Windows

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Good questions.  There's no way to specify frames and dividers in VIper, so what you're doing currently (modeling each light separately) is the best you can do. 

Windows and other assemblies are handled separately because they are entirely different objects, with different properties and behaviors, in EnergyPlus.


Thanks a lot for your fast reply Jon.

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