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Fix pzmap not showing zeroes #230

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Fix pzmap not showing zeroes #230

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Fix pzmap not showing zeroes due to hardcoded facecolors argument bei… 
…ng 'none'
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@geez0x1
geez0x1 committed Jul 27, 2018
commit 278524e2c9d424d4e6af5efc59e475fdb30dc7a5
4 changes: 2 additions & 2 deletions control/pzmap.py
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Original file line number Diff line number Diff line change
Expand Up @@ -79,8 +79,8 @@ def pzmap(sys, Plot=True, title='Pole Zero Map'):
if len(poles) > 0:
plt.scatter(real(poles), imag(poles), s=50, marker='x')
if len(zeros) > 0:
plt.scatter(real(zeros), imag(zeros), s=50, marker='o',
facecolors='none')
plt.scatter(real(zeros), imag(zeros), s=50, marker='o')

# Add axes
#Somewhat silly workaround
plt.axhline(y=0, color='black')
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