how to reuse the line after delete or hide

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suppose i plot line
BK=line([X,DCH_coord(1)],[Y,DCH_coord(2)],'marker','*','MarkerSize',10);
BK2=line([XX,DCH_coord(1)],[YY,DCH_coord(2)],'marker','*','MarkerSize',10);
for i=1:4
%sender to receiver
set(BK,'color','r','LineWidth',3),pause(.4)
set(BK,'color','k','LineWidth',3),pause(.4)
set(BK2,'color','r','LineWidth',3),pause(.4)
set(BK2,'color','k','LineWidth',3),pause(.4)
delete(BK); %for deleting the line
delete(BK2); % for deleting the line
%reverse receiver to sender
set(BK2,'color','r','LineWidth',3),pause(.4)
set(BK2,'color','k','LineWidth',3),pause(.4)
set(BK,'color','r','LineWidth',3),pause(.4)
set(BK,'color','k','LineWidth',3),pause(.4)
delete(BK2); %for deleting the line
delete(BK); % for deleting the line
end
after deleting first tym in the for loop if i again access BK and BK2 then it show error how to solve it please help me.if not delete then plz give me another solution to hide the lines after sender to receiver part and after receiver to sender.
thanks in advance.

Accepted Answer

Walter Roberson
Walter Roberson on 10 Jun 2015
Set the line Visible property 'on' or 'off'

More Answers (1)

Ingrid
Ingrid on 10 Jun 2015
try setting the linestyle to none so that the line becomes invisible instead of deleting it
than you can still use the handle in a subsequent call, just set the linestyle again to '-' to make it visible

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