changedto direct use of legexpansion instead of legcoefs in rtplots
changedto direct use of legexpansion instead of legcoefs in rtplots

this is necessary in order to be able to have the plots working for linear-combinations of phase-functions which are based directly on the legexpansion, and not on the legcoefs (due to the possibility of a varying a-parameter)

TUW-GEO/rt1