how to plot repeating steps graph real time/animated

Question

Young Woo Kim 2023-1-20

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1897450-how-to-plot-repeating-steps-graph-real-time-animated

评论： Mathieu NOE 2023-1-25

采纳的回答： Mathieu NOE

the picture is sideways but

Is there a way to animate this sort of graph?

so far I have:

clc, clearvars

h = animatedline;

axis([0,5*pi,0.8,1])

x = linspace(0,5*pi,5000);

y = sin(x);

posY=y(y>0.8);

posX=x(y>0.8);

for k = 1:length(x)

addpoints(h,posX(k),posY(k));

% scatter(posX(k),posY(k));

plot (posX,posY,'.');

end

this is a partial plot of a sine wave but i would like to do a partial plot of a graph like the one I've drawn. Thank you in advance.

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Answer 1

Mathieu NOE 2023-1-20

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https://ww2.mathworks.cn/matlabcentral/answers/1897450-how-to-plot-repeating-steps-graph-real-time-animated#answer_1152620

在 MATLAB Online 中打开

hello

maybe this

%% create animatedline object / handle
figure
h1 = animatedline;
h1.Marker = '*';
h1.Color = [1 0 1];
%% dummy data
x = (1:250);
y = 0.5*(1-square(0.25*x));
axis([0 max(x)*1.1 -0.2 1.2]);
for ci=1:length(x)
        addpoints(h1,x(ci),y(ci));
        pause(0.1);
        drawnow
        
end