Monday, June 05, 2006

Sweep Error

I tried creating a sweep along a parapet wall (Fig. 1). Granted the parapet wall has had its profile edited and there is a curved section. This should be a very simple thing to do. It is least for this idiot it isn't. Revit did generate a wonderfully USELESS error message though.

Fig.1: The path is actually the heavy black line.


Blogger Erik said...

I think what is happening there is that the sweep is running into itself on the short leg of the "step." I don't think that a profile of a sweep can touch the same part of the profile on another part of the sweep. To put it another way, think of a torus (a doughnut) it has to have a hole in the center. If you shrink the radius of the torus enough the hole would disappear. If that happens in Revit I think you get this error. Try editing the profile of the sweep or the profile of the wall so you don't get this condition. If you think about the real life version of this cap, it wouldn't have a situation where the top of the cap "merges" with itself.

I'll play with this and see if I can recreate the problem and see if the solution works.

I can't post a picture here so this probably NOT that easy to follow. Let me know if I'm not making sense and I will post something on my blog.

BTW, I'm glad I found your Blog, it's a good one.

4:03 PM  
Blogger Erik said...

LOL, I just saw how old the post was. :) That was the problem though, for anyone else who might read this. The steps in the wall are too short.

4:15 PM  

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