I have an image in my lower right corner of the screen; its a square; i want to scale it slowly bigger, while at the same time moving diagonally towars the centre of the screen where it stops scaling and moving; i cant seem to come up with an algorithm that works properly. i tried scaling 0.005 and moving 2 pixel X and 1 pixel Y yet while the scale works, the "movement" towards the centre of the screen doesnt seem to work ... i need a smoothe scaling from a corner towards centre; any good ideas for implementations?