@BeginModule
@Name      = Invertlev
@Title     = Invert levels
@Section   = Modification
@Class     = Modification
@Arguments = ifile ofile
@Operators = invertlev

@BeginDescription
This operator inverts the levels of all 3D variables.
@EndDescription
@EndModule


@BeginOperator_invertlev
@Title     = Invert levels
@EndOperator
