Underlays and wireframe views

[dfi]

We have started encountering a problem where our underlays show up some times and only some of the objects when they do show up. I have been reading in threads about the relationship between view range and underlays, so I have that under control. I see that an underlay above or below a level will not be visible in hidden line mode but only in wireframe. Without wire frame active only some of the objects appear or only objects near the ceiling. Changing the view range has no effect on this, but when I change the visibility to hidden line it reads as it should. It is a little annoying to change views to wire frame to see the underlays. There must be a fix for this.

[DaveP]

I'd just type "DWG", but there's a minimum character limit for posts.

I'd pretty much guarantee that you've got a DWG in that view, and that the DWG has some whacked-out coordinates.
I recently had a view that was doing exactly the same thing, and when I traced it down to the offending DWG, it turned out that there were a few Blocks containing Attributes that were thousands of light-years away from the origin. Yes, I said light-years.
Luckily, it was existing furniture, and it didn't hurt much to just delete those blocks.

Problem solved.

[dfi]

Unfortunately, this doesn't seem to solve the problem. I unloaded all the cad links and there was still no change. If I change it seems to be that the underlay is cutting at around 3m while the active view is cutting at 1.2m. I still can see the entire underlay if I change it to wireframe. Weird...

[Ty Buhr]

Hey Everyone,

I'm not sure if this issue has been resolved yet for you all but I was having the same problem and noticed that switching the Parts Visibility from "Show Both" to "Show Original" fixed my issue. Might be worth noting if you come across this in the future.

[MikeJarosz]

Yes, I said light-years.


I always advise using the extmax and extmin commands in Acad before bringing dwg files into Revit. It is amazing how many users ignore stray data. I once received a supposed 2D file from an airport owner that has a z-extent over 32,000 feet. And they were taking measurements from that file!

I pointed out to them that Mt Everest is less than 32,000 feet/