For the Matrix class we have ctors that take a reference to the data and work on that data. This means that a Matrix can be constructed once after the interface instantiation and can then be used for the whole lifetime of the interface and will always reference to the current information. This is a very handy feature.

This feature should now be made available throughout the geometry library in classes like HomPoint, HomPose etc..

Because a Vector, which has this very feature already, is used internally by most structures, it should be easy to add this feature.