No extrude IntersectFeatureOperation in Reconstruction Dataset

[adrelino]

Is there really no extrude IntersectFeatureOperation in the whole dataset according to the very bottom of the stats page (https://github.com/AutodeskAILab/Fusion360GalleryDataset/blob/master/docs/reconstruction_stats.md)?

If so, what might be the reasons for that? Do users rarely extrude 2 shapes to later intersect them to get a smaller shape?

Isn't that a problem for an agent solving the gym environment, bootstrapped with imitiation learning from the reconstruction dataset, since the IntersectFeatureOperation action will get initialized with 0 probability and never be explored?

[karldd]

Good spotting. This looks like some kind of matplotlib pixel rounding error. Here are the numbers representing the total count of each FeatureOperation in the dataset:

'NewBodyFeatureOperation': 10304
'JoinFeatureOperation': 4711
'CutFeatureOperation': 4299
'IntersectFeatureOperation': 19

As you can see the numbers of IntersectFeatureOperation are very low, so it does not appear to be commonly used by designers/engineers using Fusion 360. My guess is that the other operations tend to be more intuitive to work with in most scenarios.

Oddly the low-res inline plot from a Jupyter Notebook seems to show a small blip for IntersectFeatureOperation.

[karldd]

@adrelino I'm going to close this for now. Feel free to reopen if you have other questions.