The fluxes vary as
is the angle from the fixed axis,
is the angle of the orientation of the coil creating that flux (or the angle for peak flux), and
is the time varying amplitude of the flux, with phase shift of
. By changing the slider for space angle, you can change the orientation of the coils in space so that the maximum flux is produced at different angles. Hence, the peaks of the graph for
represent the orientation of the coils and hence are fixed. Only the amplitudes of
change with time. The controls for the time phase angles specify what time delay is needed for that particular flux to reach its maximum. Only through intelligent choices of the space angles and time delay angles is it possible to combine those fluxes to create a rotating magnetic field. But, not to worry, presets are available.