def _grow_solo_secondary(self, amt):
        self.ratio -= amt
        self.ratio = max(self._min_ratio, self.ratio)
Converts a VTK data array to a numpy array.
dataset/ETHPy150Open qtile/qtile/libqtile/layout/xmonad.py/MonadTall._grow_solo_secondary--crossover with--dataset/ETHPy150Open enthought/mayavi/tvtk/array_handler.py/vtk2array