if SFML had integrated tweening support that would be very helpful... the greensock tweenlite library for actionscript is a good example, if we had that functionality available in SFML, animation would be much more simple to setup.
Thank you for an excellent library and all the hard work you put into it!
If I implement my own tweening system I will post the code, if it helps. Off hand I think a vector of goal transformations along with the time it should take them to get to the goal, a high precision time counter, and an array of function pointers (one for each type of transform, rotation, scale, etc) should just about do it.
Again thank you for all your hard work.