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How can i specify which subplot that i want to plot on it?

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Le Dung
Le Dung 2017-12-15
评论： KL 2017-12-15
Hi everyone! Now, i want to draw an animated arrow (general is any object) and an animated line, each of them is plotted on each subplot. I used draw-delete method to create an animated arrow and use "addpoints" command to create an animated line. Of course, we need a for loop, and so on. You can see below code. But, i couldn't do what i want with this code. The animated arrow always drew on second subplot. Who can help me? P/s: My problem is "How can i specify which subplot that i want to plot on it?" Thank you so much. And, my code:
clear
clc
subplot(2,1,1);
axis([-1 24 -1.1 1.1]);
line([0 23],[0 0],'Color','r');
jumpstep=0.1;
subplot(2,1,2);
axis([0 240 -1.1 1.1]);
sodiem=linspace(0,23,231);
cvi=sin(sodiem);
higharrow=0.8;
ani=animatedline('Color','y');
for k=0:length(sodiem)-1
arr=arrow([jumpstep*k higharrow],[jumpstep*k 0],13,'EdgeColor','r','FaceColor','g');
addpoints(ani,sodiem(k+1),cvi(k+1))
drawnow
pause(0.01)
delete(arr);
end

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KL
KL 2017-12-15
use axis handles,
ax1 = subplot(2,1,1);
something
ax2 = subplot(2,1,2);
something
now again go back to ax1
axes(ax1)
hold on
something more

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