Can't get the two ids of the column element

[WalterWhite]

Can't  get the two ids of the column element, only the GUID

[BerndSchwarzenbacher]

OK I've completely misunderstood you before. Now I don't think you were looking for the Element ID property value. So forget what I said before.

Now to your actual problem: Not sure what the other GUID is for. How many GUIDs do you get when you add no element to the project?

[WalterWhite]

I think I can talk about my practical problems from another direction. When I add a column or a beam to a 3D scene, how to directly obtain their geometric information, such as vertices and surfaces?

[BerndSchwarzenbacher]

I've used the ModelAccess API before for something similar. It's not very comfortable to use, but worked in my case. Also unfortunately the examples for it are a bit scarce.

I think the ModelerAPI you've used might be the newer iteration of the interface. But I've not used that yet and I'm really not sure about it's application.

Hope that helps.

[WalterWhite]

Ok, I will find a suitable solution according to the direction you provided. Thank you very much.