Not sure if this is because of VisualARQ or Rhino but when I bake lines from Grasshopper to Rhino they look correct, but when I save them as an IFC they have some bends that is not suppose to be there.
BIM Vision viewer:
test linje brenna.zip (87.3 KB)
test linje brenna.3dm (1.4 MB)
I get the same error in BIM Vision Viewer when I open that ifc file. But when I re-import it in Rhino-VisualARQ it appears fine. I guess it might be an issue on BIM Vision’s side.
Looks like BIM vision is mostly at fault here. I tried several other IFC viewer, although most do not show the lines at all, at least one of them actually showed the lines correctly.