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Forums >> Revit Building >> Technical Support >> Creating a topography from 3D CAD survey import

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Thu, Feb 23, 2012 at 5:17:45 AM | Creating a topography from 3D CAD survey import

#1

chidave


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Joined: Mon, Oct 3, 2011
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I am a new Revit user and have been having a few problems with importing a 3D dwg and converting it to a topography in Revit.

My dwg been produced by inserting a block (two lines to create a cross, with the insetion point at midpoint) and giving it a Z value. Please find attached drawing.

I imagine that revit cannot read a block insertion point as information to create a topography or can it and im just doing it wrong?

What do I have to do to make this information in the dwg intelligent so it can create a topography. Would it be easier to create the topography by placing a point?

Many thanks for your help

Dave



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Thu, Feb 23, 2012 at 7:53:01 AM | Creating a topography from 3D CAD survey import

#2

WWHub


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Joined: Tue, May 16, 2006
13079 Posts
3.5 Stars: 389 Votes


You need a points file.  There does not appear to be valid 3D points in here.  Yes, the + blocks are at 3D levels but those are linework, not points. 


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