Deleting Layers
When you delete layers in either an imported file or a linked file, the layers are no longer available to the
Revit project. (However, they still exist in the original CAD file.) If you want to restore the layers, you must
delete the file from the Revit project and link to or import it again.
To delete layers in a linked or imported file, use one of the following methods:
■
When you link or import the file to the Revit project, in the Import/Link dialog, for Layers, select Visible
to display only the layers that are currently visible in AutoCAD, or Select to specify the layers to display
in Revit Architecture. Any omitted layers are effectively deleted. They are not available to the Revit
project.
■
If you want to delete an object in a CAD file, and you are not sure on which layer it resides, see
Querying
Objects in Layers
on page 1323.
■
Delete specified layers, as described in the following procedure.
To delete known layers
1
Open a project view in Revit Architecture.
2
Highlight the import symbol for the file, and click to select it.
The status bar displays the following:
<imported file name> : Import Symbol : location <Shared> or <Not Shared>.
3
On the Options Bar, click Delete Layers.
4
In the Select Layers/Levels to Delete dialog, select the layers to delete, and click OK.
The deleted layers do not display in any views in the Revit project.
Changing the Graphic Display of Layers
When you import or link a file to a Revit project, you can control the graphic display of each layer in the
file. For example, you can change the line color, weight, and style of the objects. For example, when using
a file as an underlay, you can display the entire file in halftone to distinguish it from the Revit model.
Related topic
■
Hiding and Deleting Layers
on page 1324
Preserving or Discarding Graphic Overrides for Linked Files
When you change the graphic display of layers in a
linked file
, you can specify whether Revit Architecture
preserves or discards the graphic overrides.
NOTE
This feature is available for linked CAD files only. It is not available for imported CAD files.
When you preserve graphic overrides, Revit Architecture retains any changes made to the graphic display
of its layers when it reloads the linked file. Otherwise, Revit Architecture discards graphic overrides when
reloading the linked file. This option applies to all CAD files that are linked to the project.
To preserve or discard graphic overrides for linked files
1
Open the Revit project.
Managing Layers in Linked and Imported Files | 1325
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