Clear a line drawn in plot.
95 views (last 30 days)
Show older comments
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.
0 Comments
Accepted Answer
David Sanchez
on 16 Sep 2013
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.
3 Comments
Jan
on 16 Sep 2013
@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.
More Answers (1)
Simon
on 16 Sep 2013
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 ...)
4 Comments
Simon
on 17 Sep 2013
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
See Also
Categories
Find more on Line Plots in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!