CVE processing takes quite a long time. For large files, the processing can hang or crash.

It would be good to provide a preflight checking tool... similar to Adobe Indesign etc.

1. Elements outside SWA

2. Differing UOR precision

3. Dgnlibs, Element Templates

4. Problem geometry elements

5. Geometry requiring ACIS conversion

6. ??

The tool should also include an estimate for the processing:

1. By stage- any preprocessing due to SWA, UOR processing, ACIS corrections, dgn lib access, geometry preprocessing, visiblle edge processing, saving results.

2. By type: Cut plane, Forward / Back / Outside