MATLAB: UIAxes does not fill UIFigure and appears small

axesMATLABposition;size;smalluiaxesuifigure

I am using App Designer and have noticed that UIAxes does not position well on the UIFigure.

When I use "axes", it fits nicely in the figure.

>> fig=figure;
>> ax=axes(fig,'Units','Pixels');

However, when I use "UIAxes", it does not fill the UIFigure completely, and it appears small on the bottom of the figure.

>> uifig=uifigure;
>> uiax=uiaxes(uifig);

Why is this happening?

Best Answer

As you correctly mentioned, currently the UIAxes fills only partially the space occupied by the UIFigure. We thank you for your feedback and our development team will consider it for a future release of our software.

For now, the workaround is to set the position of the UIAxes. Below is an example where UIAxes fills the whole UIFigure.

>> uifig=uifigure;
>> uiax=uiaxes(uifig);
>> uiax.Position = [uiax.Position(1:2) [uifig.Position(3:4) - 2*uiax.Position(1:2)]]

Below is the final UIFigure with a repositioned UIAxes.

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MATLAB: Does the app freeze when loading data to a Table in App Designer and MATLAB R2017b

This issue does not occur in MATLAB R2018a.

To workaround this issue in MATLAB R2017b, add some "pause" statements:

>> app.StartButton.UserData='stopped';
>> pause(1);
>> view(app.AnimAxes, 30,2)
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>>
>> LoadData(app);
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>> app.Brake_Table.Data(:,1) = app.Data11;
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>>
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>> app.ax_Carvplot.XLim = [0 10];
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MATLAB: How to set the width of a colorbar

Currently, there is no built-in option to change the width or the gap between the axes and the colorbar. We have passed this feedback as an enhancement request to the development team so that they can consider it for a future MATLAB release.

As a workaround, you can create a callback function which adjusts the position of the colorbar, and then set "SizeChangedFcn" to point towards the callback function when a UIFigure is resized. See more information on this property in the following documentation page in:

https://www.mathworks.com/help/matlab/ref/matlab.ui.figureappd-properties.html#bu4i700-1_sep_shared-SizeChangedFcn.

If you try to modify the "Position" property, e.g. change the width of the colorbar, or move it to the right of the UIAxes, then "Location" property changes to "manual". This means that the colorbar will not be repositioned later on by MATLAB if the Figure window is resized. More information on "Position" property is available on the following documentation page:

https://www.mathworks.com/help/matlab/ref/matlab.graphics.illustration.colorbar-properties.html.

You can manually adjust the position of the colorbar using the "Position" property, which is a following list - [left, bottom, width, height]. The left and bottom elements specify the distance from the lower-left corner of the figure or to the lower-left corner of the colorbar. The width and height elements specify the dimensions of the colorbar.

Best Answer

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MATLAB: Does the app freeze when loading data to a Table in App Designer and MATLAB R2017b

MATLAB: How to set the width of a colorbar

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