Layers

AutoCAD Layers

In MicroStation, layers are called levels. Use the Level Manager dialog box (Settings > Level > Manager) to create and define attributes for different levels. Levels are given a name and number in a DGN file, but are only named in DWG workmode. Level Manager settings for Color, Style, Weight, Display On/Off, Freeze, and Lock globally affect all models and views in the file. MicroStation also provides symbology overrides, so elements (objects) can take on different symbology than the ByLevel state for the levels on which they are placed. Set this alternate symbology in Level Manager using the Overrides mode, and then turn on the Settings > View Attributes > Level Symbology toggle.

The Level Display dialog box is most commonly used to control visibility of elements on levels per view. If levels are turned on or off with the mode set to View Display, it is possible that the display setting in the Level Display dialog box and Level Manager will not match. The only other attribute controlled in the Level Display dialog box is Freeze, which is set globally in DGN workmode. When in DWG workmode, freeze can also be set by view to simulate the viewport freeze often used in AutoCAD layouts. Pay attention to the mode and target fields at the top of the Level Display dialog box when working with freeze settings.