hi everybody i want to make animation using matlab but frames are plotted to gether on the same figure

% cart plotting
function []=cart(l1,time,position,angle1)  %cart(pendulum length,time vector,position vector,angle vector)
close all;
cart=figure('color','white');
hold on;
axis off; axis equal
line([-2 2],[0 0],'color',[0 0 0],'LineWidth',2);
title('cart plotting','Color',[.6 0 0]);
for i=1:length(time)
   fill([position(i)-.1 position(i)-.1 position(i)+.1 position(i)+.1],[.03 .13 .13 .03],'r'); 
   plot(position(i)-.08,.015,'o','MarkerFaceColor','g',...
                                 'MarkerSize',5);
   plot(position(i)+.08,.015,'o','MarkerFaceColor','g',...
                                 'MarkerSize',5);

     % pendulum (1) co-ordinates ::
     xp1=position(i)+l1*sin(angle1(i));
     yp1=.08+l1*cos(angle1(i));
     line([position(i) xp1],[.08 yp1],'color',[1 1 0],'LineWidth',2);
     plot(xp1,yp1,'o','MarkerFaceColor','k','MarkerSize',7);
     drawnow
     pause(.1);
  end
  end

[Image Analyst]

So?

Answer 1

[Walter Roberson]

% cart plotting
function []=cart(l1,time,position,angle1)  %cart(pendulum length,time vector,position vector,angle vector)
  cart=figure('color','white');
  ax = axes('Parent', cart);
  hold(ax, 'on');
  axis(ax, 'off', 'equal');
  line([-2 2], [0 0], 'color', [0 0 0], 'LineWidth', 2, 'Parent', ax);
  title(ax, 'cart plotting', 'Color', [.6 0 0]);
  fill_y = [.03 .13 .13 .03];
  p1_y = .015;
  p2_y = .015;
  for i=1:length(time)
     fill_x = [position(i)-.1 position(i)-.1 position(i)+.1 position(i)+.1];
     p1_x = position(i)-.08;
     p2_x = position(i)+.08;
     % pendulum (1) co-ordinates ::
     xp1 = position(i) + l1*sin(angle1(i));
     yp1 = .08 + l1*cos(angle1(i));
     lh_x = [position(i) xp1];
     lh_y = [.08 yp1];
     if i == 1
       fh = fill(fill_x, fill_y , 'r');
       p1 = plot(p1_x, p1_y, 'o', 'MarkerFaceColor', 'g',...
                                   'MarkerSize',5 );
       p2 = plot(p2_x, p2_y, 'o', 'MarkerFaceColor', 'g',...
                                   'MarkerSize', 5);
       lh = line( lh_x, lh_y, 'color', [1 1 0], 'LineWidth', 2);
       p3 = plot(xp1, yp1, 'o', 'MarkerFaceColor', 'k', 'MarkerSize', 7);
     else
       set(fh, 'Vertices', [fill_x(:), fill_y(:)]);
       set(p1, 'XData', p1_x);
       set(p2, 'XData', p2_x);
       set(lh, 'XData', lh_x, 'YData', lh_y);
       set(p3, 'XData', xp1, 'YData', yp1);
     end
     drawnow
     pause(.1);
  end
end

[mohamed donia]

thanks Mr Walter Roberson ,it works nicely thanks for your help