control.nichols_grid

control.nichols_grid(cl_mags=None, cl_phases=None, line_style='dotted')

Nichols chart grid

Plots a Nichols chart grid on the current axis, or creates a new chart if no plot already exists.

Parameters

• cl_mags (array-like (dB), optional) – Array of closed-loop magnitudes defining the iso-gain lines on a custom Nichols chart.

• cl_phases (array-like (degrees), optional) – Array of closed-loop phases defining the iso-phase lines on a custom Nichols chart. Must be in the range -360 < cl_phases < 0

• line_style (string, optional) – Matplotlib linestyle