Change pzplot marker size

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RuiQi
RuiQi 2016-4-1
回答： Stephen Wilkerson 2023-6-12
Hello,
How do i change the marker size for the pzplot ?

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2016-4-1
h=tf(1,[1 1 5])
pzplot(h)
findobj(gca,'type','line')
set(a(2),'markersize',7)
set(a(3),'markersize',7)
  3 个评论
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David Willis
David Willis 2017-5-18
In Version 2013a I had to make a small modification to the code above. I also added a line to show how to change the marker linewidth.
a = findobj returns an array of double. In the case below, a(3) points to all the pole markers, a(2) to the zero markers. The for loop is a lazy man way of getting them all.
h=tf([1 2],[1 1 5])
pzplot(h)
a = findobj(gca,'type','line')
for i = 1:length(a)
set(a(i),'markersize',12) %change marker size
set(a(i), 'linewidth',2) %change linewidth
end
Kamilu Sanusi
Kamilu Sanusi 2023-5-2
@Azzi Abdelmalek, if i am plotting eigen values of more than one matrix, and I want to change the pole and zero of markers for each matrix on the same pz plot, please how do i make changes? I am more of concern with the thickness (boldness) of the marker than the size
if D == 15
pzmap(T,'r')
end
hold on
if D == 25
pzmap(T,'m')
end
Thank you

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更多回答（1 个）

Stephen Wilkerson
Stephen Wilkerson 2023-6-12
% Let's change the symbol size
% Why Mathworks makes the symbols unseeable is beyond me
% Why mathworks makes this harder then it should be is beyond me
% Here is a solution that works, unlike the above!
sys1 = tf(4,[1 0 4]);
h = pzplot(sys1)
grid on
a = findobj(gca,'type','line');
for i = 1:length(a)
set(a(i),'markersize',20); %change marker size
set(a(i), 'linewidth',2); %change linewidth
set(a(i),'Color','r')
end

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