Modeling Round Columns

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Hello! I’m a beginner. I’m modeling a building in Rhino for future energy simulations, and due to a client requirement, it was necessary to model round columns. However, I don’t understand the logic of how to model them—the walls are just a simple line to later insert the thickness in Grasshopper, so would a circular column be a line too?

Thank you in advance for your help.

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Hi @Pinzon, energyplus/openstudio don’t accept circular geometry, you can make a many sided n-gon to replace them or use HB Planarize Brep component to assist:
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-trevor