Interface to access properties of interpolation objects #447
Description
It would be convenient to have some documented way of accessing properties of interpolation objects. E.g. if I want to know the degree of a BSplineInterpolation, I know I can access its field d. But this is not documented, si I guess it is not considered part of the API, and it could break without noticing between minor versions.
Can we make a list of properties that might be desirable to query for each subtype of AbstractInterpolation? Then that list could be added to the "Interface" section of the docs.