def __init__(self, parent):
self.figure = Figure(tight_layout=True)
self.canvas = FigureCanvas(self.figure)
self.canvas.setContentsMargins(0,0,0,0)
self.axes = self.figure.add_subplot(111, projection='3d')
Axes3D.set_autoscale_on(self.axes, True)
Axes3D.autoscale_view(self.axes)
self.canvas.setParent(parent)
self.activePlot = None
self.activePopulation = None
self.surface = None
self.scatter = None
