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Forums >> Revit Building >> Technical Support >> RELATING A FAMILIES OBJECTS TO TOP OF WALL
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Joined: Mon, Aug 18, 2008
10 Posts
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I'm trying to make a parametric roof ladder that will read the top of wall. Does anyone know how to add a parameter to an object in a wall-based family relating to the "Unconnected Height" of the host wall?? "Unconnected Height" is an already existing instance parameter in each wall so I would think there is some way to access it. It would be gravy if I could get this family to also read the height where a roof intersects with the wall but I could live without that as long as I could relate to top of wall. Thanks, Dan
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Joined: Mon, Mar 20, 2006
219 Posts
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I don't think it's possible. Revit doesn't like to relate parameters backward through families or family layers. I think the closest you'll be able to come is making the height alignab;e and locking it up to the top of the wall. That would make sizing each instance faster and if the wall changes height then the object will too. I haven't played with aligning vertically on wall-hosted families, but can't think of why it wouldn't work. Sorry I can't be of more help.
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