Forums >> Revit Building >> Technical Support >> Revit conflict with AutoCAD dwg - element graphics display issues
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We're running Revit 2014, and imported a .dwg file from an Owner. Now, all elements are displaying heavily distorted, apparently regardless of view settings - see attached. We've also seen the distortion on multiple computers - both laptop and desktop.
Has anyone else encountered this?
Thank you -
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Joined: Tue, May 16, 2006
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While your view is strange, we don't know what the distortion is. If it is the funny juction between elements, that is probably an ACAD issue.
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Sorry, it's hard to be much more clear. Refer to the attached picture. That pipe is all the same size, and Revit's visual representation of it changes with every turn of the mouse wheel for zooming - the edges and ends jitter around wildly as you scroll in and out.
Even when I Copy/Paste-Aligned those pipes into a new, blank project, they show up "broken" like that.
Also see attached for how that particular arrangement of pipes *should* look, when I just build them in a new project without having imported the CAD.
Thank you again -
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As I stated, this is a CAD issue. I don't know if these elements were created from native CAD or some sort of add-on package but either way, they obviously don't connect cleanly. Shapes like this are not as easy to create in CAD as they are in Revit. CAD deals with faceted round shapes but revit uses extruded curves/circles.
Either you live with this, create your own in Revit or have the author of the CAD file do it better (if they can).
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More - the same intersection at two slightly different zoom levels.
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No - these are standard pipe elements that I'm creating in Revit, with a 2D single-line CAD file in the background for reference only.
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For reference how? If you point to that linework at all, you are creating a problem. Get rid of the CAD and then make your piping connections.
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The CAD is just a background to trace over. The new Revit elements aren't referencing it in any way (that I'm aware of).
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Seems like you might just try what I suggest......CAD creates a lot of problems. Revit likes to associate with line elements whever possible.
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I thought a little more about this. I initially thought everything was created in CAD. Does this print correctly? If so, then it is a graphic card issue.
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These pipes look all sorts of messed up. I would try what WWHub says in his last post first.
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Looks like printing yields similar results - see attached.
Oh well. I ran out of time for troubleshooting this, so I just created a jpg of the CAD file to use as a Raster Image background, and inserted it into a new, blank model.
Thank you for thinking about this with me - I'm sure it's just a matter of the CAD file being corrupt somehow.
- Doug
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