[bschwindHN]

I agree, I love code-based CAD but there needs to be a hybrid with GUI tools because selecting stuff with a mouse will almost always be easier.

I known there is research out there (can't dig it up at the moment), but the goal would probably be to generate a robust geometric query for a selected item, so that small changes in the model don't affect which edge gets selected after subsequent operations.

So if you extruded a face upwards, and then filleted all the edges at the top of that extrusion, this hybrid tool would generate a query which gives you all the top edges, instead of whatever the indices of those edges happens to be. I can't imagine it's an easy problem though to generate robust queries for all possible geometry a user might select.

[throwup238]

> I known there is research out there (can't dig it up at the moment), but the goal would probably be to generate a robust geometric query for a selected item, so that small changes in the model don't affect which edge gets selected after subsequent operations.

There is quite a bit of research that this is impossible. No matter what algorithm or heuristic you use, the second that symmetry is introduced, the query breaks down. The only way to resolve those issues is to present them to the user as an underspecified constraint, and no geometric kernel is well designed to do that.