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How do I use matlab to plot a graph where the x,y axes do not intersect?

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cui
cui on 27 Apr 2021
Commented: Adam Danz on 30 Apr 2021
How can I use matlab to plot a graph where the x,y axes do not intersect? Similar to the image below, note that the bottom left corner does not cross.The x- and y-axes are shown with specified ranges
  5 Comments
cui
cui on 29 Apr 2021
Oh, what I meant to say was that I hope that future versions will enhance the personalisation of axes properties.
PS: I am not very good at English, sorry

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Accepted Answer

Jonas
Jonas on 28 Apr 2021
not elegant, but possible if i'm not mistaken:
fig=figure;
% amount of shift of x and y axis in normalized coordinates
dx=0.05;
dy=0.05;
plotAx=axes('Position',[0.1 0.1 0.85 0.85],'Color','none');
% create shifted y axis
yax=axes('Position',plotAx.Position-[dx 0 -dx 0],'Color','none','XColor','none');
yax.XGrid='off';
% create shifted x axis
xax=axes('Position',plotAx.Position-[0 dy 0 -dy],'Color','none','YColor','none');
xax.YGrid='off';
axes(plotAx); % set curr axis
% plot sample data
x=-2:0.1:2;
y=(x-1).^2+1;
plot(plotAx,x,y)
grid off;
linkaxes([plotAx,yax,xax]);
yticklabels([]);
xticklabels([]);
% remove rulers
plotAx.XColor='none';
plotAx.YColor='none';
  5 Comments
Adam Danz
Adam Danz on 30 Apr 2021
I'm not so sure disconnected axes is a very popular idea. What's the benefit of doing this, by the way? Curious.

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More Answers (1)

Bob Thompson
Bob Thompson on 27 Apr 2021
Create your figure first, then create the axes. This will allow you to specify what they are before the data gets populated, and should allow you to fix their positions.
I have not looked at the documentation in enough detail to confirm it will do exactly what you want, but it should be in the axes command.
  2 Comments
Adam Danz
Adam Danz on 28 Apr 2021
cui is correct here. There are no axes properties that can achive this. There are, however, undocumented ruler properties that can achieve at least some of it.

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