MATLAB: Matlab App Designer UIAxes same scale for x and y axis

appdesignerMATLABuiaxis

Hi I'm looking for a command to have the same scale for x and y axis in my app.UIAxis plot.

unfortuantely set(gca,'DataAspectRatio',[10 1 1]) doesn't work since it opens a new figure instead of changing the axis scale in my plot.

Thanks a lot and best regards.

Best Answer

Check out linkaxes and linkprop. Use them to set the axis limits and, if needed, other axis properties between two axes.

The reason why your set() command didn't work is because you need to specify the axis handle.

set(app.UIAxes,'DataAspectRatio',[10 1 1])
%   ^^^^^^^^^^ or whatever your axis handle is

Related Solutions

MATLAB: How to assign yyaxis ‘Label’ and ‘Range’ to UIAxes in matlab appdesigner (R2020a)

The z axis is the 3rd dimension but your plot is 2D.

You yyaxis to assign an independent label to the right y-axis. Then link the two yaxes so that if properties of one change, the other axis will remain identical.

Demo:

% Create a demo uiaxes
app.UIAxes = uiaxes(); 
% Define right axis label
yyaxis(app.UIAxes, 'right')
ylabel(app.UIAxes, 'Right Side Label')
% Set axis colors to match the x axis color
set(app.UIAxes.YAxis, 'Color', app.UIAxes.XAxis.Color)
% Go back to the left y-axis and assign ylabel
yyaxis(app.UIAxes, 'left') 
ylabel(app.UIAxes, 'Left Side Label')
% [DO ALL PLOTTING HERE]; Demo:
plot(app.UIAxes, randi(100,1,20), randi(50, 1,20), 'o')
% After plotting is done, link the y axes
% Link yaxis properties
app.UIAxes.UserData = linkprop(app.UIAxes.YAxis,...
    {'Limits','LimitsMode','TickValues','TickLabelFormat','Scale',...
    'Color','FontSize'}); %add more as needed

Result:

MATLAB: App Slow With UIAxes

Thank you @Adam Danz and @Ephraim Bryski. The additional info is useful. I see the same uifigure/uiaxes slowness Adam is showing.

Ephraim, try using a uifigure/axes combination instead. This shows similar performance results to the figure/axes combination:

UIFIGURE/UIAXES: Elapsed time is 1.871439 seconds.
UIFIGURE/AXES: Elapsed time is 0.205658 seconds.
FIGURE/AXES: Elapsed time is 0.204895 seconds.

A few notes:

UIAXES is a heavier weight version of AXES (it's effectively an axes with an invisible UI panel). This makes it slower, although the amount of slowness here is a little surprising. I'll report this to the development team to investigate.
The axes you get in App Designer when you drag and drop from the palette is always a UIAXES. So in order to use an AXES with your UIFIGURE, you'll need to manually create and position it as part of your startup function.
Lastly, these UIAXES/AXES differences will soon become a much simpler story with some up and coming work. Keep an eye out for the MATLAB release notes!

Best Answer

Related Solutions

MATLAB: How to assign yyaxis ‘Label’ and ‘Range’ to UIAxes in matlab appdesigner (R2020a)

MATLAB: App Slow With UIAxes

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