Create OWN_TEAM Orientation

[DriesDeprest]

I was thinking about adding support for an OWN_TEAM Orientation which in the case for an EventDataset would behave the same as the ACTION_EXECUTING_TEAM Orientation, but in the case of a TrackingDataset it would orient the coordinates of each player with respect to its own side. Implying that e.g. both goalkeepers would have a starting position of +- (0, 50).

What do you think @koenvo @JanVanHaaren ?

[koenvo]

Sounds interesting. I'm planning to merge https://github.com/PySport/kloppy/pull/190 first.

Curious what @probberechts thinks about your suggestions.

[probberechts]

That sounds like a valuable feature! However, I would categorize it more as a symmetry transformation rather than an orientation change. In my conceptualization, orientation transforms merely switch perspectives without altering the underlying data, similar to changing the camera angle. On the other hand, symmetry transforms modify the relationships between data points.

So maybe we should create a different kind of transformation for this. There would be two such symmetry transformations: each team plays towards the same goal, and each action starts on the right side of the pitch. Combining both could be particularly useful, for instance, when analyzing corners it is common to aggregate them at a common point, like (0,0).

[JanVanHaaren]

Although I don't have much experience with orientations in kloppy, I like the proposal of @probberechts.