Batch Migration from V7 to V8 Format

You can use the Batch Converter, to upgrade a set of V7 design files and/or cell libraries to V8 DGN format.

To explicitly specify the working unit setup for upgraded files, you must specify the desired working units in a text file. During the upgrade, if the unit labels in a file being processed are identical to those in a custom unit definition, MicroStation V8 creates the V8 DGN file with the specified units.

For the syntax and examples of custom unit definitions, see the sample unit definition file, units.def, which is installed in the ..\Default\Data\ folder in MicroStation's program directory.

The configuration variable MS_CUSTOMUNITDEF defines the location of the unit definition file. As delivered, MS_CUSTOMUNITDEF is set to the installed sample file, units.def. All of the unit definitions in that file are on lines that begin with the # character — that is, "commented out" — so even if you do not modify the file or redefine MS_CUSTOMUNITDEF, none of the sample unit definitions are applied by default.