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Title: Refine automatic contour determination in Nyquist plot by bnavigator · Pull Request #620 · python-control/python-control · GitHub

Open Graph Title: Refine automatic contour determination in Nyquist plot by bnavigator · Pull Request #620 · python-control/python-control

X Title: Refine automatic contour determination in Nyquist plot by bnavigator · Pull Request #620 · python-control/python-control

Description: Fix for #613 import control import matplotlib.pyplot as plt G = control.tf([1], [1,1,0,0,0]) count, contour1 = control.nyquist_plot(G, label='indent_radius default (0.1)', return_contour=True) R = 0.11 count, contour2 = control.nyquist_plot(G, indent_radius=R, return_contour=True, label=f'indent_radius={R}') ax = plt.gca() ax.set_aspect(1) ax.legend(bbox_to_anchor=(1.05, 1), loc='upper left', borderaxespad=0.) plt.figure() cp = plt.plot(contour1.real, contour1.imag, '-', label='indent_radius default (0.1)') c = cp[0].get_color() plt.plot(contour1.real, -contour1.imag, '--', color=c) cp = plt.plot(contour2.real, contour2.imag, '-', label=f'indent_radius={R}') c = cp[0].get_color() plt.plot(contour2.real, -contour2.imag, '--', color=c) ax = plt.gca() ax.legend() ax.set_aspect(1) ax.set_xlim([-0.2, 0.2]) ax.set_ylim([-0.2, 0.2]) ax.grid() ax.set_title(r'Nyquist Contour $\Gamma$',) plt.show()

Open Graph Description: Fix for #613 import control import matplotlib.pyplot as plt G = control.tf([1], [1,1,0,0,0]) count, contour1 = control.nyquist_plot(G, label='indent_radius default (0.1)', ...

X Description: Fix for #613 import control import matplotlib.pyplot as plt G = control.tf([1], [1,1,0,0,0]) count, contour1 = control.nyquist_plot(G, label='indent_radius default (0.1)', ...

Opengraph URL: https://github.com/python-control/python-control/pull/620

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og:image:altFix for #613 import control import matplotlib.pyplot as plt G = control.tf([1], [1,1,0,0,0]) count, contour1 = control.nyquist_plot(G, label='indent_radius default (0.1)', ...
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0a82909 remove duplicate code for omega determination bnavigator May 1, 2021 https://github.com/python-control/python-control/pull/620/commits/0a8290906569b74763ac47133203ed31051d7f74
31cd4d0 add some omegas for quarter circle around origin poles in nyquist con… bnavigator May 1, 2021 https://github.com/python-control/python-control/pull/620/commits/31cd4d0de9f838cd06da49a55ec9ff625257ec44
38d6909 only evaluate interactive code when __main__ bnavigator May 1, 2021 https://github.com/python-control/python-control/pull/620/commits/38d690975233b418435d34d074bdeda3a45e63ef
4a4d088 mplcleanup for all nyquist tests bnavigator May 1, 2021 https://github.com/python-control/python-control/pull/620/commits/4a4d08896c07edc6c1c6e7b761d987e3f3e3e48d
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