How to show two figures of dynamic plots next to each other?

Dear all,

I have two for-loops. Each loop generates a data which I am plotting (inside the loop) so as I can see the plot dynamically changing. Right now I process one plot which will open in one figure and once it is finished I close it and go to the next for-loop and see the second dynamic plot.

I want to be able to see these two dynamic plots at the same time. I tried to use subplot(2,1,1) in the first for-loop and subplot(2,2,1) in the second for-loop but things are not working well.

Is there someway to do it correctly?

Any help will be appreciated.

Meshoo

Answer 1

[Thorsten]

Use drawnow, pause, and specify the axis as in the following example

for i = 1:2
  subplot(1,2,1)
  axis([0 20 0 20])
  plot(i, i, '.')
  drawnow
  hold on
  subplot(1,2,2)
  axis([0 20 0 400])
  plot(i, i^2, 'o')
  drawnow
  hold on
  pause(0.1)
end

[Meshooo]

With few modifications it works very well. Thank you very much.

[Felipe]

Hi Meshooo,

Which modifications did you use to make it work? I'm trying to plot two motions at the same time, but because of the first drawnow, the second one does not plot at the same time. Could you help me?

Thanks, -Felipe

[Meshooo]

Sure, try to run this code

for K = 1:200
A1 =sort(rand(K,1))*2*pi;
B1 =sort(rand(K,1))*2*pi;
subplot(1,2,1)
grid on
plot(A1, 'r', 'linewidth',2);
drawnow

hold on
subplot(1,2,2)
plot(B1, 'b', 'linewidth',2);
grid on
drawnow
pause(0.01);
end

I hope it's what you want.