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Using plot handle to replot a graph

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Ethan Welch
Ethan Welch 2022-8-13
评论： Les Beckham 2022-8-13
In my project, I make an array of graphs. If one of the graphs is interesting, I would like to copy that graph with all of its formatting to a separate figure. I would like to do something like this. I know I could just replot everything, but a lot goes into each graph, and this seems like it should be possible.
x = 0:0.1:10;
y = [sin(x);cos(x);tan(x)];
for i = 1:3;
subplot(1,3,i)
p(i) = plot(x,y(i,:));
end
figure
plot(p(2))

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采纳的回答

Les Beckham
Les Beckham 2022-8-13
编辑：Les Beckham 2022-8-13
Ran in:
Read the documentation for the copyobj function. Here is an example:
x = 0:0.1:10;
y = [sin(x);cos(x);tan(x)];
for i = 1:3;
a(i) = subplot(1,3,i);
p(i) = plot(x,y(i,:));
end
f = figure;
copyplot = copyobj(p(2), gca); % copy the plot from subplot 2 to the newly created axis in f

更多回答（1 个）

Ethan Welch
Ethan Welch 2022-8-13
编辑：Ethan Welch 2022-8-13
Ran in:
Thank you for your help. Now I realize I need one step further. I have multiple plots on the same graph and only the last plot is copied over. Is there a way to copy them all at once?
x = 0:0.1:10;
y = [sin(x);cos(x);tan(x)];
for i = 1:3
a(i) = subplot(1,3,i);
hold on
plot(x,y(i,:));
p(i) = plot(x,y(mod(i+1,3)+1,:));
hold off
end
f = figure;
copyplot = copyobj(p(2), gca);
  2 个评论
Ethan Welch
Ethan Welch 2022-8-13
Ran in:
Okay, I figured it out.
x = 0:0.1:10;
y = [sin(x);cos(x);tan(x)];
for i = 1:3
a(i) = subplot(1,3,i);
hold on
p(i) = plot(x,y(i,:));
plot(x,y(mod(i+1,3)+1,:))
hold off
end
f = figure;
copyplot = copyobj(a(2).Children, gca);
Les Beckham
Les Beckham 2022-8-13
Great. Exactly what I was going to suggest. That's how to learn: read the docs and experiment until you get the result that you want.

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