Create a flashing circle on a plot

I would like to create a flashing circle on a graph.

Any information to go about doing this?

[KALYAN ACHARJYA]

Have you tried?

[Adam Danz]

@Norman Vyne, you just removed all comments and the question itself. Is that how you thank volunteers in this forum of taking time out of their day to help you?

[Matt J]

The orginal question was (paraphrased), "How do I put a blinking circle on a plot".

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[Matt J]

Something like this is a possibility:

plot(1:5);
hcirc=drawcircle;

while 1
    
    hcirc.Visible='on';
    pause(0.2);
    hcirc.Visible='off';
    pause(0.2);
    
end

[Norman Vyne]

hcirc=drawcircle;

The code above is undefined

[Matt J]

Since you Accepted the answer, I assume you figured it out?

[Norman Vyne]

Actually I am not entirely sure why an error pops up.

[Matt J]

The optimal thing would be to upgrade to a version of Matlab which provides drawcircle. If you can't upgrade, you can make your own with patch,

function h=drawcircle(center,radius)

  t=0:0.1:360;
  x=radius*cosd(t)+center(1);
  y=radius*sind(t)+center(2);
  
  h=patch(x,y,'red');


end

[Norman Vyne]

Not enough input arguments in line 4.

[Matt J]

You should provide whatever arguments you have omitted in line 4.

[Adam Danz]

Did you enter a "center" containing 2 values and a radius? It's difficult to help you when we don't have any information about what might be causing the problem. What's line 4? What inputs did you provide?

[Norman Vyne]

I inputted the exact code above and clicked run, then I got an error stating that there is not enough input information in the "x=" part of the function.