Bounding volumes

We are working on a part where we want to use the XNA bounding volumes. The problem is that these objects are structures and I therefore there is no interface or abstract class for them. I think that a bounding volume is most often used as a property of an object, which can be either a box, sphere etc depending on the object it belongs to. Currently this is not possible, can anyone enlighten me about a possible solution.
Kind regards
[454 byte] By [Remmie] at [2007-12-25]
# 1
The XNA bounding volumes are very much basic primitives: they give you the fundamental mathematical computations, but without a lot of higher level abstraction around what that means.
You could build this sort of abstraction by making your own interface, then having wrapper types that implement it and internally contain a member using one of the XNA primitives.
ShawnHargreaves at 2007-10-8 > top of Msdn Tech,Game Technologies: DirectX, XNA, XACT, etc.,XNA Framework...