def nonlinear_function_string_changed(self,event):
        self.gradient_table.set_scaling_function(self.nonlinear_function_string.get())
        self.on_gradient_table_changed(final_update = True)
Calling this method has no effect. DD files are receive only
dataset/ETHPy150Open enthought/mayavi/tvtk/util/tk_gradient_editor.py/GradientEditor.nonlinear_function_string_changed--crossover with--dataset/ETHPy150Open rwl/muntjac/muntjac/ui/drag_and_drop_wrapper.py/ReceivingEventWrapper.disposeStreamVariable