Adding a legend from a loop into one element

Hi, I created a loop (p4) and would like to find a way to combine them into one element so that when I click on p4 in the legend this element disappears (visibility off). See below for the code.

   for k=1:size(A,1)
    p4 = plot3([A(k,1),B(k,1)],[A(k,2),B(k,2)],[A(k,3),B(k,3)],'b');
   end
...
L = legend([p1 p2 p3 p4 S p5 p7 p9],{'p1','p2','p3','p4','S','p5','p7','p9'},'location','Best');
 L.ItemHitFcn = @hitcallback_ex1;

 function hitcallback_ex1(src,evnt)

if strcmp(evnt.Peer.Visible,'on') evnt.Peer.Visible = 'off'; else evnt.Peer.Visible = 'on'; end

 end
  end

At the moment, nothing happens when I click on p4. Thank you in advance!

[Jan]

I do not understand your description. What does "p4" mean in "a loop (p4)"? What do you want to "combine"? What is "one element". Which element should disappear where - in the axes or in the legend? What is "p1, p2, ..." in the code?

[Jos (10584)]

What are the undefined handles p1 p2 p3 S p5 p6 p9 ? Don't you want to use

p(k) = ...
legend(p, ...

[Camille Fong]

Hi Jan, Sorry if my question was not clear. I didn't copy paste my whole code.

My loop is as follow

    for k=1:size(A,1)
    p4 = plot3([A(k,1),B(k,1)],[A(k,2),B(k,2)],[A(k,3),B(k,3)],'b');
   end
  end

 L = legend([p4],{'p4'},'location','Best');
 L.ItemHitFcn = @hitcallback_ex1;

I added a function at the end of my code to allow the user to click on the legend to put it on or off the visibility of the loop.

The function is as followed :

     function hitcallback_ex1(src,evnt)
if strcmp(evnt.Peer.Visible,'on')
    evnt.Peer.Visible = 'off';
else 
    evnt.Peer.Visible = 'on';
end

 end
  end

I want to be able to click on the legend p4, and turn off the visibility of the loop (see attachment). At the moment, nothing happens when I clicked on p4. I hope it is more clear now.

Answer 1

[Jan]

I'm not sure, but maybe this helps:

L = legend(p4, {'p4'},'location','Best');
L.ItemHitFcn = {@hitcallback_ex, p4};

function hitcallback_ex1(src, evnt, LineH)
if strcmp(LineH.Visible, 'on')
  LineH.Visible = 'off';
else 
  LineH.Visible = 'on';
end
end

Do you know FEX: ClickableLegend? It might be useful also.