Deleting plots within a GUI only if the plot exists?
2 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
How would I go about deleting specific plots within a GUI only if they exist? Thanks in advance. My code is below.
function deleting_plots(source,eventdata)
if exist('S.hDFplot1','plot')
delete (S.hDFplot1);
delete (S.hDFplot2);
end
2 commentaires
Jan
le 7 Juil 2017
From where is this function called? It looks like a callback. What is "S"? What is the contents of "S.hDFplot1"?
Adam
le 7 Juil 2017
If you have a finite number of plots that you are going to have at one time or another you can just declare a handle for each of them on your struct and initialise it to []
Then you don't need to care if it exists or not because calling delete on [] does not do any harm.
If you want to delete all plots then you could store all their handles in a single array of plot handles so you can delete them all in one go.
Réponses (1)
Jan
le 7 Juil 2017
Perhaps S is your handles struct? Then:
function deleting_plots(source, eventdata)
S = guidata(source);
if ishghanlde(S.hDFplot1)
delete (S.hDFplot1);
delete (S.hDFplot2);
end
end
2 commentaires
Adam
le 7 Juil 2017
You need to give more information. As much relevant information as possible. How the function is called or where it is linked up to as a callback is clearly fundamental information. How are we supposed to guess what S is? In your original code clearly S does not exist in the function workspace.
Voir également
Catégories
En savoir plus sur Line Plots dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!