Masking Portions of Linked CAD File

[lhanyok]

We have a project that is an addition/renovation to an existing hospital. We decided that we were not going to model the entire existing building - only the portion that is having work done and places where we want to create an elevation or section.

In our plans, we will leave the linked CAD files in place so that we can show a broader area in our floorplans.

However, we cannot figure out the best way to "mask" the portions of the CAD file where we don't want to see it in our plans. Our first attempt was to use a floor, but that isn't really working for us and brings up some new issues. We don't want to use a masking region, because we want to be able to show the model elements.

Is our best bet to edit the AutoCAD file itself, to cut out the portion that we don't want to see?

Thanks in advance!

Laura

[SCShell]

Hey there,
Your solution is one method; however, I have done what you are trying to do by simply placing the imported DWG below the work plane and using a floor to cover up what I didn't want.
(I don't own Autocad, so this is my only method...other than importing and "partially exploding" the DWG in a separate project file first, and then exporting it back to a revised DWG to shown what I want, and then linking it into the new project.)

Good luck
Steve

[dgreen.49364]

Laura, keep it simple, edit the Autocad file and be done.

[Andy.88917]

If I am understanding you right this is something I do quite often. I had been using a wipeout over my xref and under my new drawing and made the wipeout color 255 (non-printing) which works good but now I use AECPolygons for the same thing. I also now can inverse xclip the xref which works even better (unless your wanting it to be part of the model). Hope that helps a little.

[patricks]

If I am understanding you right this is something I do quite often. I had been using a wipeout over my xref and under my new drawing and made the wipeout color 255 (non-printing) which works good but now I use AECPolygons for the same thing. I also now can inverse xclip the xref which works even better (unless your wanting it to be part of the model). Hope that helps a little.

xref and xclip don't exist in Revit. Are you in the right forum? :)

[Andy.88917]

Nope, I'm not in the right forum! Sorry, saw the reference to AutoCAD...guess it just goes to show you should never assume!

[lhanyok]

Laura, keep it simple, edit the Autocad file and be done.

That's what we decided to do. This is our first of many hospital renovation/addition projects in Revit, and I just want to make sure we're getting off on the right foot. I'm trying to prove that Revit will work well with these types of projects, since we do quite a few of them.