Matlab animation - how to from figures

Moly

Compared to the questions out there, my question seems VERY SIMPLE.

I have a code that generates a few graphs. Instead of super-imposing the graphs on one figure, I would like matlab to generate an animation of those graphs for me. I tried looking at help and my intution tells me that getframe is the way to go, but my technical capablities do not extend that far.

Any suggestion on how i can animate these figures? Here is my code

x0=0; xt=30; dt=.1;
L=(xt-x0)/dt+1;
n=10; 

for k=1:6
      t=5*k; 
      for i=1:L 
           summ=0;
           x(i)=x0+(i-1)*dt;
           for j=1:n 
                npi=j*pi; 
                a=2*(1-cos(npi))-npi^2*(1+cos(npi)); 
                b= exp((-npi^2*t)/900);
                c=sin(npi*x(i)/30);
                summ=summ+((a-b)/j^3)*b*c;
           end
           u(i)=30-x(i)+(60/pi^3)*summ;
      end
      plot(x,u); hold on
end
title(' u(x,t) vs x for several values of t')

shwaip

do you want this to display in matlab, or with an external program?

Moly

both if possible.

shwaip

x0=0; xt=30; dt=.1;
L=(xt-x0)/dt+1;
n=10; 


figure(1)
for k=1:6
      t=5*k; 
      for i=1:L 
           summ=0;
           x(i)=x0+(i-1)*dt;
           for j=1:n 
                npi=j*pi; 
                a=2*(1-cos(npi))-npi^2*(1+cos(npi)); 
                b= exp((-npi^2*t)/900);
                c=sin(npi*x(i)/30);
                summ=summ+((a-b)/j^3)*b*c;
           end
           u(i)=30-x(i)+(60/pi^3)*summ;
      end
      plot(x,u);
      title(sprintf('u(x,%d)',t));
      m(k)=getframe();
end
movie(m)
movie2avi(m,'movieout.avi','compression','none');

to play the movie in matlab, type: movie(m,# of times you want to repeat)

this also creates a movieout.avi file in the directory you run it in. you may need to tweak the args in movie2avi to make it look like you want

Moly

thank you so much for creating the movie.
can i control how long the frame is displayed so that i can see the transition a little slower?