MicroStation tags are elements that may be attached to elements drawn in designs. For example, a cell might have an attached tag that includes a name or number for the cell. Tags are similar to AutoCAD attributes, which are more constrained. In AutoCAD, attributes must be part of a block and cannot be attached to an element.
Working with Tags That Will Be Saved to DWG Files
When working with a DGN file that will be saved to a DWG file:
- A MicroStation tag is defined as part of a tag set, but this type of object does not exist in AutoCAD. When a DGN file is saved to a DWG file, the tags become individual attributes, and the tag set name is lost.
- When tags are saved to DWG files, you can choose to save them to simple text elements. To do this, turn off the Tag option on the Save As DWG/DXF Options, Filter tab.
- In the DWG file format, tags are defined with characters only. When a DGN file is saved to DWG, the other data types (Integer and Real) are automatically converted to the character type.
- If the DGN file contains enter data fields in cells, they are converted to attributes.
Working with Tags in DWG Workmode
In DWG workmode:
- Tags must be attached to shared cells. In DWG workmode, you can only place shared cells.
- A MicroStation tag is defined as part of a tag set, but this type of object does not exist in AutoCAD. When you open a DWG file containing attributes in MicroStation, a tag set is created for all of the tags contained in each shared cell definition with the same name as the shared cell.
- Tag data can be defined as characters only. (In DGN workmode, tag data can also be defined as integers and real numbers.)
Working with Tags Created from AutoCAD Attribute Definitions
When viewing DWG files, MicroStation converts AutoCAD attribute definitions to tags that display exactly as they would in AutoCAD. If they are: