Delete line in GUI
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Hello community,
I have got a GUI with axes. I've made a function which plot a line when I click mouse button. I need to delete previous line when I plot new one, but I want to leave alone other lines. How can I do that?
Andrew
回答（2 个）
Jan
2013-1-10
You can store the handles of objects you want to delete later:
AxesH = axes('NextPlot', 'add');
LineH = plot(1:10, rand(1, 10));
set(AxesH, 'UserData', LineH);
...
pause(2);
OldLineH = get(AxesH, 'UserData');
delete(OldLineH);
LineH = plot(1:10, rand(1, 10));
Setting 'NextPlot' to 'add' is equivalent to "hold on". Setting it to 'replace' let the plot() command remove all previously plotted objects automatically.
Azzi Abdelmalek
2013-1-10
0 个投票
A new plot will automatically erase the previous plot, unless there is something else then a line in your previous plot.
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