Using DGN Files as Underlays

You can attach DGN drawing files (DesiGN files) as underlays. The files are linked as references to the current drawing.

Files of type *.dgn originate from MicroStation® or other CAD software.

In DGN files, a drawing can be separated into Design Models which are individual workspaces where design geometry is defined. When you attach a DGN file which contains multiple Design Models, the specified model is referenced.

You can specify layer visibility of a DGN Underlay that is a referenced DGN file in a drawing.

If you select a DGN underlay in the graphics area and the ribbon is active, the DGN Underlay contextual tab appears. The contextual tab groups options and tools for clipping and changing the appearance of the DGN underlay against the graphics area background.

This chapter discusses:

• Attaching DGN Files as Underlays

• Controlling the Visibility of DGN Underlay Layers

• Clipping DGN Underlays

• Detaching DGN Underlays

• Setting DGN Underlay Options

• Adjusting DGN Underlays

• Managing DGN Underlays from the References Palette