Clear a line drawn in plot.
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Hello I would like to clear a line that I draw in my graph but I want it to be clean only when I run my function.
When I press button in Matlab GUI I want to draw a line but when I pressed it second time I want to clear that line and draw other. How to simply do this.
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David Sanchez
2013년 9월 16일
Implement this in the pushbutton:
children = get(gca, 'children');
delete(children(1));
The first line grabs the last additions to the figure, the second line deletes from the plot the last element added to the figure.
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Jan
2013년 9월 16일
@Joansz: We cannot guess what you are doing exactly. Because the question is vague only, we can suggest some methods, but not a running piece of code. When you show us the relevant part of your code, more exactly answers are possible.
추가 답변 (1개)
Simon
2013년 9월 16일
Hi!
Each time you plot something with the "h=plot" command, it gives you as return value the handle "h" of that plot. Then you may use
delete(h)
You just need to remember this handle (store it somewhere ...)
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Simon
2013년 9월 17일
So, in your code above you have everything you need. Storing a variable for future use is done using "guidata". See http://www.mathworks.com/help/matlab/ref/guidata.html?searchHighlight=guidata
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