After calling set_data()
or set_ydata()
in matplotlib the axis scale is not updated automatically. Use
ax.relim() ax.autoscale_view(True,True,True)
to update both the X and the Y scale.
Full example:
line.set_data(x, y) # Autoscale view ax.relim() ax.autoscale_view(True,True,True) # Redraw figure.canvas.draw() figure.canvas.flush_events()