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Fix warnings generated by sisotool #608

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Merged
merged 1 commit into from
Apr 11, 2021
+4 −4
Merged

Fix warnings generated by sisotool #608

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4 changes: 2 additions & 2 deletions control/rlocus.py
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Original file line number Diff line number Diff line change
Expand Up @@ -180,7 +180,7 @@ def root_locus(sys, kvect=None, xlim=None, ylim=None,
fig.axes[1].plot(
[root.real for root in start_mat],
[root.imag for root in start_mat],
'm.', marker='s', markersize=8, zorder=20, label='gain_point')
marker='s', markersize=8, zorder=20, label='gain_point')
s = start_mat[0][0]
if isdtime(sys, strict=True):
zeta = -np.cos(np.angle(np.log(s)))
Expand Down Expand Up @@ -628,7 +628,7 @@ def _RLFeedbackClicksPoint(event, sys, fig, ax_rlocus, sisotool=False):
ax_rlocus.plot(
[root.real for root in mymat],
[root.imag for root in mymat],
'm.', marker='s', markersize=8, zorder=20, label='gain_point')
marker='s', markersize=8, zorder=20, label='gain_point')
else:
ax_rlocus.plot(s.real, s.imag, 'k.', marker='s', markersize=8,
zorder=20, label='gain_point')
Expand Down
4 changes: 2 additions & 2 deletions control/sisotool.py
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Original file line number Diff line number Diff line change
Expand Up @@ -81,10 +81,10 @@ def sisotool(sys, kvect=None, xlim_rlocus=None, ylim_rlocus=None,

# Setup sisotool figure or superimpose if one is already present
fig = plt.gcf()
if fig.canvas.get_window_title() != 'Sisotool':
if fig.canvas.manager.get_window_title() != 'Sisotool':
plt.close(fig)
fig,axes = plt.subplots(2, 2)
fig.canvas.set_window_title('Sisotool')
fig.canvas.manager.set_window_title('Sisotool')

# Extract bode plot parameters
bode_plot_params = {
Expand Down