How to get specific axes handle in GUI with more then one axes?

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SturmGhost 2018-4-20

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/396239-how-to-get-specific-axes-handle-in-gui-with-more-then-one-axes

评论： SturmGhost 2018-4-20

Say I have GUI_1 with several axes. Now I start GUI_2 changes some settings and the corresponding axes in GUI_1 should change corresponding to the changes in GUI_2. Problem is I can't get the right axes-handle to refresh the correct axes.

findobj(HandleToGUI_1, 'type', 'axes')

gives me all axes and...

findobj(HandleToGUI_1, 'type', 'axes', '-and', 'Tag', 'TagForMySpecificAxes')

doesn't work...

How can I get the handle for my specific axes?

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Dennis 2018-4-20

在 MATLAB Online 中打开

you can assign a handle when you create the axes

handles.axes1=axes('Position',[0.86 0 0.15 0.15])

SturmGhost 2018-4-20

在 MATLAB Online 中打开

@Jan

I will get an empty GraphicsPlaceholder as a handle.

HandleVisibility is on.

If I run my second example without the '-and' code inside GUI_1.m it works. Unfortunately, if I call my refresh function from GUI_2.m it doesn't finde the handle. To access my refresh function (which is located in GUI_1.m) from GUI_2.m I use

setappdata(gcf, 'fhUpdateFilterPreview', @UpdateFilterPreview);

in GUI_1.m at the GUI_OpeningFcn function and in GUI_2.m

fhUpdateFilterPreview = getappdata(hImageAnalyzer, 'fhUpdateFilterPreview');
[...]
feval(fhUpdateFilterPreview);

@Dennis

GUIDE will already assign a handle to the axes. Problem is, if I call my refresh function from GUI_2, I don't have this handle accessible.

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Answer 1

Jan 2018-4-20

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/396239-how-to-get-specific-axes-handle-in-gui-with-more-then-one-axes#answer_316202

编辑：Jan 2018-4-20

在 MATLAB Online 中打开

If the figure was created by GUIDE:

handles_GUI1 = guidata(HandleToGUI_1);
handles_GUI1.TagForMySpecificAxes   % May be called specifically, perhaps 'axes_<TAG>'

You can store the wanted object manually by guidata also, when you do not use GUIDE. Using an already stored handle is faster than searching dynamically. If there is a huge number of elements in the GUI (hundreds), the delay is noticable.