class PlotDepictor(Depictor):
def __init__(self, datablock):
super().__init__(datablock)
self.plot = PlotItem()
self.plot.addLegend()
def add_line(self, y, name, x=None, color='w'):
if x is None:
x = range(len(y))
self.plot.plot(x, y, name=name, pen=color)
def purge(self):
self.plot = PlotItem()
