I just saw, that there is a method in mitkGeometry3d that is called SetFloatBounds(double...). Ther already is a method SetBounds that takes a BoundsArrayType and a method SetFloatBounds(float...) so I would assume, that the mentioned method should be called SetDoubleBounds(double...). Documentation also says "Sets the bounds array via a double array).
Otherwise an overloaded SetBounds(float...) and SetBounds(double...) would make sense, right?
So a minor-easy-and-quick-to-fix-at-Bugsquashing-Party-bug, I hope. ;)
Best,
Ingmar