A while loop to display a sequence of motion (like a rocket)

I'm having some problems with this loop. I would want to display something similar to plot(0,k) one by one as an attempt to simulate a rocket launch.

k = [y(:,2)];

noT=size(k,1);
clf;

clear MV;

for ti=1:noT
        hold off;
           plot(0,k(ti,:),'k-')

             axis('image');

             pause(0.1)

             axis('off');

             MV(ti)=getframe;

end;

where size(k,1) is 200 and k ranges from 0.006400000000000E6 to 8.553552443483490E6

Any ideas?

Regards, Christoffer

[Image Analyst]

I don't understand why you're having just a single x value, zero, as your x array, and not an array that is the same length as k(ti,:). Can you give us any values for y?

Answer 1

[Image Analyst]

Try this:

y = rand(10, 2); % Sample data.

k = y(:,2);
numberOfT = size(k,1);
clf;
clear('MV');
for ti = 1 : numberOfT
  plot(1:ti, k(1:ti), 'k*-', 'LineWidth', 2, 'MarkerSize', 15)
  caption = sprintf('k vs. ti, for max ti = %d', ti);
  title(caption, 'FontSize', 20);
  xlabel('ti', 'FontSize', 20);
  ylabel('k', 'FontSize', 20);
  grid on;
  drawnow;
  if ti == 1
    % Set up figure properties:
    % Enlarge figure to full screen.
    set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);
    % Get rid of tool bar and pulldown menus that are along top of figure.
    set(gcf, 'Toolbar', 'none', 'Menu', 'none');
    % Give a name to the title bar.
    set(gcf, 'Name', 'Demo by ImageAnalyst', 'NumberTitle', 'Off')
    
  end
  pause(0.1)
  %   MV(ti)=getframe;
end

[Image Analyst]

You mgiht also look at animatedLine() or comet().