Clear axes in GUI using cla reset does not work for secondary axes?
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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?
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Accepted Answer
Geoff Hayes
on 27 Dec 2014
Edited: Geoff Hayes
on 27 Dec 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 Comments
Geoff Hayes
on 3 Jan 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.
More Answers (3)
Ilham Hardy
on 30 Dec 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');
Vince Wong
on 7 Oct 2021
%yyaxis(handles, 'right')
cla(handles)
yyaxis(handles, 'left')
cla(handles)
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