MATLAB: How to delete all lines using line()

axesdeleteishandlelinematlab gui

Hello everyone,
I have a simple question: is it possible to delete all lines (I mean, using the function line()) and not the rest of plots in an axes gui?
I am making a cursor and I am using the function line() to draw it. I have a little problem in my code, so I thought delete all my lines and then draw the lines that I need.
I can't use in my case: if ishandle(cursor) delete(cursor) end
Any advice?
Thank you in advance

Best Answer

You have to keep track of the handles to the lines as you create them, because I think curves made by plot() might also be identified as lines by findobj(). If it's in a loop, then
for k = 1 : whatever
    hLines(k) = line(.....
end
% Delete them
delete(hLines);
Or run this demo:
t=linspace(0,6*pi, 1000);
f = 8 * exp(-0.25*t).*sin(t - 2);
plot(t, f);
grid on;
hold on;
% Make lines.
hLines(1)=line([2,8], [3,-4], 'Color', 'r', 'LineWidth', 2)
hLines(2)=line([10,16], [-2,4], 'Color', 'r', 'LineWidth', 2)
% Clear lines.
uiwait(msgbox('Click OK to clear the lines'));
delete(hLines);
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