CONTROLLING USER INTERFACE FORCE

A method for controlling a user interface using an indirect input device includes determining a first touchdown location of an input object, determining a first subsequent location of the input object, calculating a first direction and a first distance between the first touchdown location and the first subsequent location, and moving a cursor representation on a display in a second direction and at a velocity. The method further includes detecting a touchdown event of at least two input objects, determining a second touchdown location of the at least two input objects, determining a second subsequent location of the at least two input objects, calculating a third direction and a second distance from the second touchdown location and the second subsequent location, and modulating a user interface action in a fourth direction at a magnitude.