■
Mass instances require volumetric geometry to calculate volume, surface area, and floor area faces. See
Considerations for Imported Geometry in Mass or Generic Model Families
on page 555 and
Importing
Massing Studies from Other Applications
on page 555.
You can import many different types of file formats into Revit Architecture. When you export a file from
the originating application for use with Revit Architecture, you can set a variety of export options. With
these many variations of file formats and export options, it is important to ensure that the exported file
provides the geometric data needed for the Revit Architecture capability that you plan to use. To optimize
results with various file formats, consult the documentation provided with the exporting applications.
Importing or Linking CAD Formats
Use File menu
➤
Import/Link to import or link vector data from other CAD programs such as AutoCAD
2009 (DWG and DXF), MicroStation
®
(DGN), SketchUp (SKP and DWG), and ACIS (SAT). Revit Architecture
supports importing most DGN surfaces and solids with the exceptions of cones, B-Spline surfaces, and
SmartSolids.
In addition to using the Import/Link command, you can import CAD files using drag-and-drop from
Windows
®
Explorer onto a model, drafting, or sheet view of Revit Architecture. See
Importing CAD Files
Using i-drop
on page 1308.
You can mirror imported and linked CAD files. See
Mirroring Elements
on page 310.
NOTE
Revit Architecture imports ACIS solids from SAT files. SAT file formats later than version 7.0 do not import
into Revit Architecture. You should determine which version your solid modelling program is creating. Some solid
modelling products (such as form-Z
®
) create SAT file formats later than version 7.0 by default.
Snapping to Imported Geometry
Suppose that you import an AutoCAD 2009
®
drawing into Revit Architecture and then want to trace over
walls in that drawing. As you place the cursor near the lines representing the walls, it can snap to the lines
or the midpoint between the lines.
Proxy Graphics from AutoCAD 2009 Files
Revit Architecture supports reading in proxy graphics from AutoCAD 2009 files. Proxy graphics are AutoCAD
2009's representations of AutoCAD Architecture objects. Unlike AutoCAD Architecture objects, proxy graphics
have no intelligence.
Proxy graphics can exist for many types of data in AutoCAD 2009, including Mechanical Desktop (MDT)
parts and AutoCAD 2009 Runtime eXtension (ARX) objects. If you set the Proxygraphics command to 1 in
AutoCAD 2009, Revit Architecture can then import ARX objects and AutoCAD Architecture objects (such
as walls and floors) in the DWG or DXF file.
Implications of Importing vs. Linking for Xrefs
Suppose you use AutoCAD to generate a DWG file that contains external references (xrefs). When you import
or link the DWG file, Revit Architecture displays the geometry from the nested xrefs. The decision to import
or link a file to a Revit project affects what you can do with the xref information:
■
If you
import
the file, you can explode the nested xrefs to Revit elements. However, if the xref file is
updated after the import, Revit Architecture will not automatically reflect changes to the xref file.
Importing or Linking CAD Formats | 1307
Summary of Contents for 24000-000000-9860 - Revit Architecture - PC
Page 1: ...Revit Architecture 2009 User s Guide April 2008 240A1 050000 PM02A ...
Page 4: ......
Page 56: ...18 ...
Page 116: ...78 Chapter 3 Revit Essentials ...
Page 172: ...134 Chapter 4 ProjectViews ...
Page 178: ...Schedule with Grid Lines Schedule with Grid Lines and an Outline 140 Chapter 4 ProjectViews ...
Page 554: ...516 ...
Page 739: ...Curtain wall Curtain Grid Curtain Walls Curtain Grids and Mullions 701 ...
Page 1004: ...966 ...
Page 1136: ...1098 ...
Page 1226: ...1188 ...
Page 1250: ...1212 ...
Page 1276: ...1238 Chapter 20 Design Options ...
Page 1310: ...1272 ...
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