Hello hossein,
To animate a line connecting two points, you can update the existing line object rather than creating a new one at each time step, as shown in the code below :
xA = rand(1, 100); % Example x-coordinates for point A
yA = rand(1, 100); % Example y-coordinates for point A
xB = rand(1, 100); % Example x-coordinates for point B
yB = rand(1, 100); % Example y-coordinates for point B
figure;
hold on;
grid on;
% Set axis properties to prevent them from changing during animation
axis equal;
xlim([min([xA, xB]) - 0.1, max([xA, xB]) + 0.1]);
ylim([min([yA, yB]) - 0.1, max([yA, yB]) + 0.1]);
% Initialize the line object
hd = line([xA(1) xB(1)], [yA(1) yB(1)], 'Color', 'b', 'LineWidth', 2);
% Animation loop
for i = 1:length(xA)
% Update the line data
set(hd, 'XData', [xA(i) xB(i)], 'YData', [yA(i) yB(i)]);
% Pause for a short duration to control the speed of the animation
pause(0.05);
title(sprintf('Time step: %d', i));
end
hold off;
You can refer to the documentation by executing the following command in MATLAB Command Window to know more about 'set' function :
doc set
