Are annotations supported in uifigure objects?

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Kevin J. Delaney 2018-1-4

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https://ww2.mathworks.cn/matlabcentral/answers/375630-are-annotations-supported-in-uifigure-objects

评论： Ben Abbott 2024-6-22

Are annotations supported in uifigures created in AppDesigner?

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Answer 1

Jan 2018-1-4

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https://ww2.mathworks.cn/matlabcentral/answers/375630-are-annotations-supported-in-uifigure-objects#answer_298751

在 MATLAB Online 中打开

I asked an internet search engine for "Matlab annotations appdesigner" and the first hit is https://www.mathworks.com/help/matlab/creating_guis/graphics-support-in-app-designer.html. Here you find:

 However, the following functionality is not supported:
 ...
 Annotations and Colormap Adjustments:    annotation

This sounds like annotations are not supported.

Although I really like this forum, I admit that Google took only 0.47 sec to find the link, while I typed for minutes to post, what was found automatically. Therefore it is recommended to search before asking.

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Adam Danz 2020-6-5

编辑：Adam Danz 2020-6-8

在 MATLAB Online 中打开

According to the updated documentation, annotation objects are supported in appdesigner (same link provided by Jan).

uif = uifigure(); 
x = [0.3 0.5];
y = [0.6 0.5];
annotation(uif,'arrow',x,y)

However, unlike regular figures, the annotation object does not appear on top of existing axes in UIFigures, at least not in r2020a.

Here's a demo that creates two figures, one is a UIFigure. Each figure has identical axes and identical annotiation boxes. The annotation object is not seen in the UIFigure. A confirmation box will appear in the UIFigure and when you press a button, it will delete the UIAxes and the annotation object will be revealed.

fig = figure('Units','pixels'); 
fig.Position = [150,150,560,420];
ax = axes(fig, 'Units','Pixels', 'Position', [25 25 510 380]); 
an = annotation(fig, 'TextBox',[.2 .2 .6 .6],'String','Anotation Text Box');
uifig = uifigure('Position',[sum(fig.Position([1,3]))+10,fig.Position(2:end)]);
uiax = uiaxes(uifig,'Position',ax.Position);  
uian = annotation(uifig, 'TextBox',[.2 .2 .6 .6],'String','Anotation Text Box');
waitfor(uiconfirm(uifig,'Press any button to remove UIAxes and reveal the annotation object.', 'Annotation demo')); 
delete(uiax)

Ben Abbott 2024-6-22

在 MATLAB Online 中打开

I'll make a guess as to what Andrew is interested in (at least it is what I'm interested in).

hf = uifigure ();
ha = axes ('parent', hf);
h = annotation ('line', [0.1, 0.9], [0.1, 0.9]);
h.Parent = ha;
plotedit (ha, 'on')

If uifigure is replaced by figure, then I can use the mouse to move the line, or its ends. This is essentially the same as imline, but does not require the image processing toolbox.

When uifigure is used, the parent cannot be specified by the annotation line. As a result a figure is created. When the annotation parent is changed to the UIAxes, the ability to modify the line via the mouse no longer works.

Ben Abbott 2024-6-22

在 MATLAB Online 中打开

I'm running 2022b. The following works, but ...

hf = uifigure ('Name', 'annotate');
ha = uiaxes ('parent', hf, 'units', 'normalized', 'position', [0, 0, 1 1], 'looseinset', 0.03 * [1 1 1 1]);
htmp = figure ();
h = annotation ('line', [0.1, 0.9], [0.1, 0.9]);
h.Parent = ha;
close (htmp)

... I'd also like to be able to allow the line to be changed via the mouse. The following allows that, but also allows the everything else to be modified by the mouse.

plotedit (hf, 'on')
ha.Selected = 'off';
h.Selected = 'on';

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Are annotations supported in uifigure objects?

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