2010

■ Groups
■ External references (xrefs)
■ Hyperlinks
■ Text or multi-line text
■ Entity handles
■ Attributes
■ Textures
■ File properties
Unsupported Entities
■ Lights
■ Splines
■ Multi-lines
■ Linetypes
■ Dimensions and leaders
■ Raster bitmaps
■ Construction lines (xlines and rays)
■ Hatching
See also:
■ “
DWG/DXF/SAT File Reader Options” on page 392
Overview of Object Enablers
Object Enablers (OEs) can be thought of as a ‘translator’ for custom objects. Applications based on the AutoCAD
®
platform, (including Autodesk products like AutoCAD
®
Architecture, and non-Autodesk products like Bentley
AutoPlant) generate custom objects that are saved into the DWG file format. These custom objects are typically
found in content libraries that are built into these applications.
Many applications have the ability to read DWG files; however, outside of the authoring application any custom
objects cannot be interpreted. As a result, DWG file readers display such custom objects incorrectly, as proxy
graphics (wireframe geometry), unless the required OE is installed on the machine reading the DWG file.
NOTE Autodesk Navisworks contains versions of RealDWG
™
for 2004, 2005, 2006, 2007, 2008, 2009, and 2010. This
means you can use OE between 2004 and 2010 with Navisworks. You cannot use any OEs older than 2004. However,
OEs are backwards compatible, and you can install a later OE to support reading of older versions of DWG files.
To check if an OE is required
1 In Autodesk Navisworks, open a DWG file.
2 If you can only see wireframe geometry, click View ➤ Scene Statistics. The Scene Statistics dialog box
contains the report listing any missing, or failed to load OEs. You need to install all missing OEs to open
the file correctly in Autodesk Navisworks.
NOTE Occasionally, an OE is already installed, but does not support non-AutoCAD-based applications, like
Autodesk Navisworks. In such cases, the OE is reported as missing in the Scene Statistics dialog box.
96 | Chapter 5 Work with Files