2011

Table Of Contents
DGNEXPORT
Creates one or more DGN files from the current drawing.
DGNIMPORT
Imports the data from a DGN file into a new DWG file.
DGNLAYERS
Controls the display of layers in a DGN underlay.
DGNMAPPING
Allows users to create and edit user-defined DGN mapping setups.
System Variables
DGNFRAME
Determines whether DGN underlay frames are visible or plotted in the current
drawing.
DGNIMPORTMAX
Sets the maximum number of elements that are translated when importing
a DGN file.
DGNMAPPINGPATH
Specifies the location of the dgnsetups.ini file where DGN mapping setups
are stored.
DGNOSNAP
Determines whether object snapping is active for geometry in DGN underlays
that are attached to the drawing.
Detach Underlay Files
Underlays that are no longer needed can be detached from a drawing file.
When you detach an underlay, all instances of the underlay are removed from
the drawing, and the linking path to the file is removed.
To hide the display of an underlay temporarily, you can unload it rather than
detach it. This action preserves the underlay location for reloading later.
NOTE Erasing an individual instance of an underlay is not the same as detaching
it. An underlay must be detached to remove the link from your drawing to the
file.
1758 | Chapter 37 Work with Data in Other Formats