Tags

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 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. (See Using enter data fields in cells.)

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.)

1. Create geometry.


2. Define the tag set and tags. (See Tags Sets and Definitions .)


3. Attach tags to the drawing at the desired location, with element Association off. (See Attach Tags.)
   The tag name is displayed, rather than the tag value.


4. Select the geometry and the tag that you just created.


5. Create a shared cell that uses the geometry and the tag.


6. Insert the cell into the model as many times as needed.
   The tag value is displayed, rather than the tag name.


7. For each cell, use the Edit Tag tool to change the tag value from the default.



In DGN workmode, the procedure for creating a cell is the same, except that you need to identify the cell as a shared cell. In the Cell Library dialog box, select the cell in the list box, then click Share.