Can't delete Plot line

2 vues (au cours des 30 derniers jours)
Oguz Han Yesildal
Oguz Han Yesildal le 23 Avr 2019
Hi guys i need some help with my code. im trying to delete a plot line but mathlab doesnt let me.
if ventilst== 1
%Weißer Hintergrund
xbodenw1 = [-500 -500 -498 -498];
ybodenw1 = [-115 -815 -815 -115];
p1= plot([-9735 -375], [-875 -875], 'k');
assignin('base','p1',p1);
p2= evalin('base','p2');
delete(p2)
end
if ventilst== 0
p2= plot([9735 -375], [-875 -875], 'k');
assignin('base','p2',p2);
p1= evalin('base','p1');
delete(p1)
end

Réponses (1)

Walter Roberson
Walter Roberson le 23 Avr 2019
You have no hold on in what you show. When hold is not on (or equivalent internal settings) then each plot() call effectively calls cla() before doing the plotting, which would have the effect of deleting the existing line.
Try
if ishandle(p2); delete(p2); end

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