Azzera filtri
Azzera filtri

Clear axes in GUI using cla reset does not work for secondary axes?

45 visualizzazioni (ultimi 30 giorni)
Hi all,
I am having some trouble clearing an axes using the reset command below:
cla reset
I have created an axes with a secondary axis through the following command (the variables F, S, L and D are arrays):
set(get(handles.ax1, 'Parent'), 'HandleVisibility', 'on'); %set handle visibility to on
axes(handles.ax1); %make ax1 the current axis
x1 = F;
y1 = S;
y2 = L;
y3 = D;
hl1 = line(x1,y1,'Color','r'); %plot a line in the current axis
hl2 = line(x1,y2,'Color','g');
handles.ax2 = axes('Units', 'character'); %create a new axis and set units to be character
set(handles.ax2, 'Position',get(handles.ax1,'Position'),...
'YAxisLocation','right',...
'Color','none',...
'YColor','k'); %position the new axis on the earlier existing axis
hl3 = line(x1,y3,'Color','b','Parent',handles.ax2); %plot a line on the new axis
However, when I use the "cla reset" command, it does not reset the secondary axis I created, nor the data from the secondary axis.
How can I fix this?

Risposta accettata

Geoff Hayes
Geoff Hayes il 27 Dic 2014
Modificato: Geoff Hayes il 27 Dic 2014
Maarten - where are you calling the line of code to clear the axes? When you call this line, do the objects from the first axes get cleared, or does nothing happen?
If you want to explicitly indicate which axes to clear, then try the following
cla(handles.ax2,'reset');
With the above, you should be clearing all objects that have visible handles on the specified axes. If this doesn't work, then verify that you have drawn the graphics on the second axes.
  8 Commenti
Geoff Hayes
Geoff Hayes il 3 Gen 2015
Maarten - I would have to see the code that you are using to try and figure out what is causing the problem. You aren't creating a new axes each time the push button is pressed, correct? The only time the second axes should be created is on the first button press.
Maarten
Maarten il 14 Gen 2015
Geoff, thanks for the help. I did not find the time to reply here, but in the end I used the following command:
cla(handles.ax1,'reset'); % Do a complete and total reset of the axes.
if isfield(handles,'ax2') %delete ax2 if it exists
delete(handles.ax2,'');
end

Accedi per commentare.

Più risposte (3)

Ilham Hardy
Ilham Hardy il 30 Dic 2014
What if,
set(get(handles.ax1, 'Parent'), 'HandleVisibility', 'on'); %set handle visibility to on
axes(handles.ax1); %make ax1 the current axis
cla(handles.ax1,'reset');
set(get(handles.ax2, 'Parent'), 'HandleVisibility', 'on'); %set handle visibility to on
axes(handles.ax2); %make ax1 the current axis
cla(handles.ax2,'reset');

Sean de Wolski
Sean de Wolski il 30 Dic 2014
delete(allchild(handles.axes1))
  2 Commenti
Maarten
Maarten il 2 Gen 2015
This code did not work for the ax2, but thanks for the input.
Maarten
Maarten il 14 Gen 2015
Almost the same code used, but I had to specify it to handles.ax2.
cla(handles.ax1,'reset'); % Do a complete and total reset of the axes.
if isfield(handles,'ax2')
delete(handles.ax2,'');
end

Accedi per commentare.


Vince Wong
Vince Wong il 7 Ott 2021
%yyaxis(handles, 'right')
cla(handles)
yyaxis(handles, 'left')
cla(handles)

Categorie

Scopri di più su Line Plots in Help Center e File Exchange

Prodotti

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by