How to add marker for the current point in animated line

clc;clear all; close all

a1 = animatedline('Color',[0 .7 .7]);

a2 = animatedline('Color',[0 .5 .5]);

axis([0 20 -1 1])

x = linspace(0,20,10000);

for k = 1:length(x);

% first line

xk = x(k);

ysin = sin(xk);

addpoints(a1,xk,ysin);

% second line

ycos = cos(xk);

addpoints(a2,xk,ycos);

% update screen

drawnow

pause(0.000001)

end

Hi,

In the above code I want to add a marker to the current point in the plot as shown in the attached fig. So, I want the trajectory to be visible as a line and the current point as a marker.

Answer 1

[Sulaymon Eshkabilov]

Just a plot() with drawnow better simulates the animated plot:

axis([0 20 -1 1])
x = linspace(0,20,1000);
for k = 1:length(x)
    % first line
    xk = x(k);
    ysin = sin(xk);
plot(xk, ysin, 'bo-', 'markerfacecolor', 'y'), hold on    
% second line
    ycos = cos(xk);
 plot(xk, ycos, 'rp-', 'markerfacecolor', 'c'),   
  % update screen
    drawnow 
    pause(0.0000001)
    hold all
end

[Argo Chakraborty]

Thanks for your reply. But I want that the marker should be visible only for the current point and only a curve (without marker) for the trajectory.