No IfcSpace in exported IFC after vs.Space_AddName

[ge25yak]

Hi, I'm trying to create spaces from polygons using API and automatically assign some names to them. 

vertices = [(0, 0), (18000, 0), (18000, 12000), (0, 12000)]
vs.Poly(*vertices)
hpoly = vs.LNewObj()
space_h = vs.Space_CreateSpace(hpoly, 0)

If I stop here, everything looks good. An unstyled space was created and I can export it in ifc.

But when I continue editing the space, I find that the 2D boundary of the space has disappeared. This makes the exported ifc file has no IfcSpace!

vs.Space_AddRoomID(space_h, "test")
vs.Space_AddName(space_h, "test123")
area = vs.Space_GetNetArea(space_h)
vs.AlrtDialog(f"space area: {area}") # the area is always 0

 

[Marissa Farrell]

It doesn't seem like your other two commands, the AddRoomID and AddName, are working either. I'm wondering if something changed when spaces were updated after those commands were created.

 

Interestingly, I tested in 2018, and I get an error saying that the AddRoomID command doesn't even exist in that version, even though the Dev Wiki claims it was added in 2014. I think something is fishy there.

 

In the meantime, could you use the values from the Space record?

[MullinRJ]

9 hours ago, Marissa Farrell said:

Interestingly, I tested in 2018, and I get an error saying that the AddRoomID command doesn't even exist in that version, even though the Dev Wiki claims it was added in 2014. I think something is fishy there.

 

 

Hi @Marissa Farrell,

   You are correct, Space_AddRoomID() was not introduced until VW 2019. The documentation is wrong regarding its release date. I try to track these anomalies, but I missed this one. I wonder how many more I missed over the years?

 

Raymond

 

[ge25yak]

My current workaround is to use vs.IFC_SetProperty to set the name and id in ifc data, since my goal is to see this information in exported ifc... 

Another thing I noticed is that when I re-checked "show 2d boundary" in oip, the space reappeared. I tested in 2024.

Edited June 11 by ge25yak