Matrix API easy access to LocalBounds

[mariokloster]

Hello Pyscipopt Team,

Is your feature request related to a problem? Please describe.
I'm currently unable to access the individual bounds of variables that I created using the Matrix API. While setting the bounds during variable creation is very convenient, reading them afterwards is not as straightforward.

Describe the solution you'd like
When I create variables using the Matrix API, I can set their bounds like this:

x = scip.addMatrixVar(shape, vtype='C', name='x', ub=np.array([[5, 6], [2, 8]]))

It would be great if I could also retrieve the bounds in a similar matrix-style format, for example:

ub = x.getUbLocal() # or a similar method

Additional context
This feature would make it easier to inspect and debug models that rely heavily on matrix-based variable definitions.

Thank you all for your great work and for considering this request!

[Joao-Dionisio]

Hey @mariokloster, thanks for the issue! It's actually a bug, it happens with the other methods as well. We'll fix it soon.

[Joao-Dionisio]

@mariokloster the fix for your problem should be in #970, if you want to try it out now.