Autodesk 24000-000000-9860 - Revit Architecture - PC, User Manual

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6 Return to the 3D view and make any further adjustments required.
7 Hide the section box so that it does not appear in the exported file:
a Click View menu
➤
View Properties.
b In the Element Properties dialog for the 3D view, under Extents, clear Section Box.
c Click OK.
Export the 3D view defined by the section box
8 Export the view using File menu
➤
Export. See Export on page 1273.
For more information about section boxes, see Using a Section Box in a 3D View on page 111.
Exporting Intersecting Geometry
If the model includes intersecting geometry (such as an extrusion passing through a wall surface), Revit
Architecture does not create new edges along the lines of the intersection. As a result, Revit Architecture
may incorrectly remove hidden lines during export. If you export a view of the design with hidden lines
turned on, you may see unexpected results when you open the view in another CAD application. See
Hidden
Line Model Graphics Style on page 202.
To see all visible lines, create an opening in one surface before passing another surface through it, or join
geometry to create an edge.
Intersected wall and extrusion in hidden line mode (no edges at the intersection of
the surfaces)
Exporting Layers
When exporting a project to another format (such as DWG or DGN), you want the exported file to contain
as much information about the project as possible. Revit Architecture stores a wealth of project information
in its categories and subcategories. In CAD software, this type of information is stored in layers (or levels in
MicroStation). To ensure that information about Revit Architecture categories is properly converted to CAD
layer names, use the Export Layers command to define a layer mapping file.
The layer mapping file is a text file that maps each Revit Architecture category or subcategory to a
preconfigured layer name for the CAD software. For example, a Revit Architecture door object automatically
maps to A-DOOR layer in AutoCAD 2009. The layer names are preconfigured in the text file, but you can
change them.
You can load an existing layer mapping file and manually change values for it, or you can generate a file
using any of the following mapping standards:
■ American Institute of Architects (AIA)
■ ISO standard 13567
Exporting Layers | 1285