from

from() tween<Ts...> tweeny::from ( Ts...  vs ) Creates a tween starting from the values defined in the arguments. Starting values can have heterogeneous types, even user-defined types, provided they implement the four arithmetic operators (+, -, * and /). The types used will also define the type of each next step, the type of the callback and the type of arguments the passed easing functions must have. See also tweeny::tween