2008

Polymesh Objects and Materials
When you link a polymesh DWG file, each polymesh face is considered as a
separate entity, with one material permitted per entity, which allows it to
contain multiple materials
You can apply a bitmap material to the different faces of polymesh geometry,
unlike ACIS solids, where you would need to use a Multi/Sub-Object material
to create the same effect. For example, you can select the outside face of wall
and apply a brick bitmap material and also apply a diffuse material on the
inside wall to simulate white paint.
When you link a polymesh DWG file, every material used in the scene appears
in the Material Editor as a separate material where you can edit it.
When a polymesh object’s materials are shown in the Material Editor, each
material name appears in the Material/Map Browser, for example, Default wall
or Basic Wall: Generic – 12” Masonry.
Procedures
To link a drawing file:
You can link drawings in the form of DWG or DXF files. A DWG is the native
file format for AutoCAD and AutoCAD Architecture, but you must first export
a DWG when working from a Revit project. The File Link Manager does not
recognize RVT files.
1 Choose File menu > File Link Manager.
2 On the Attach panel, click Files to select a file from the appropriate
directory on either your local or network system, and click Open.
3 Choose a Preset from the pull-down list, if you have one defined.
TIP If this is your first File Linking, and you have not defined any presets, you
may want to create one on the
Presets panel on page 6809 of the dialog.
4 Turn on the Rescale switch and adjust the Incoming File Units, if
necessary.
5 Click Attach This File.
To reload a drawing:
Reload is most often used when your drawing or project has been changed in
AutoCAD, AutoCAD Architecture, or Revit, or if the linked drawing file has
File Link | 6787