Is it possible to create "SettlingTime" and "Overshoot" datatips on a stepplot via scripts?

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Alex Oleg
Alex Oleg 2019-11-5
回答： elad sharony 2022-7-9
I have a stepplot responce. I need to create datatips automatically on "SettlingTime" and "Overshoot" points (see the picture below).
I know how to create datatips on simple x,y plots using the "cursorMode.createDatatip", but it seems like this command can't be used with the stepplot.
Next script allows me to get the characteristic points:
h=figure ('units','normalized','outerposition',[0 0 1 1]);
step_sys=stepplot(sys);
step_sys.showCharacteristic('SettlingTime');
step_sys.showCharacteristic('PeakResponse');
Maybe exist any command to add lables on this plot?
Сварка.png
1st plot: What I have.
2st plot: What I need to have.

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回答（2 个）

Jose Daniel Pinzon Vivas
This is the answer that a came with.
h=stepplot(sys_cl,t);
s_info=stepinfo(sys_cl);
grid
title('Step Response with Text')
h.showCharacteristic('PeakResponse')
h.showCharacteristic('SettlingTime')
h.showCharacteristic('SteadyState')
text(s_info.PeakTime+0.05,h.Responses.Data.Amplitude(end)*0.6,sprintf('PeakTime (s) = %.3f', s_info.PeakTime))
text(s_info.PeakTime+0.05,s_info.Peak,sprintf('Overshoot (%%) = %.3f', s_info.Overshoot))
text(s_info.SettlingTime+0.05,h.Responses.Data.Amplitude(end)*0.4,sprintf('SettlingTime (s) = %.3f', s_info.SettlingTime))
text(h.Responses.Data.Time(end)*0.5,h.Responses.Data.Amplitude(end)*1.05,sprintf('Final Value (s) = %.3f', h.Responses.Data.Amplitude(end)))
elad sharony
elad sharony 2022-7-9
Ran in:
P = tf(1,[1,0.4,1]);
fig = figure;
plt = stepplot(P);
plt.showCharacteristic('SettlingTime')
plt.showCharacteristic('RiseTime')
CharPoints = findall(get(fig,'Children'),'type','line','Tag','CharPoint');
for i = 1:length(CharPoints)
datatip(CharPoints(i),'Visible','on','DataIndex',i,'Location','southeast','FontSize',8);
end

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