Model Viewer Classes

[DnOberon]

Reason

It would be nice to automatically create a graph based on the user's incoming CAD file, but in order to do that, we may need to ship DeepLynx with a couple "baked-in" ontology classes. This may not be a feature we want, but I think it should be discussed and considered at least.

Design

If the user wants to use the Model Viewer, these two classes get automatically added to their container's ontology.

Impact

It would add something new. It could potentially conflict with existing ontology classes. There may be other unintended consequences that I'm missing.