Guide to Using DWG and Other Formats
Guide to Using DWG and Other Formats
Guide to Using DWG and Other Formats

Levels

MicroStation levels are the same as DWG layers. In MicroStation, levels can be identified with both level numbers and names, but in the DWG file format, layers are identified only with names.

Another difference in DGN and DWG files is the way that the display of levels (layers) is controlled. In MicroStation, each view can have its own display configuration, or levels can be displayed globally throughout the file. In AutoCAD, layers are only displayed globally — they affect all viewports. (A viewport is analogous to a reference attachment.)

Working with levels that will be saved to DWG files

When working with a DGN file that will be saved to a DWG file:

DWG files commonly use the BYLAYER setting, since this was the default method for setting the appearance of objects for many years.

Working with levels in DWG workmode

In DWG workmode: