How to give print of a certain axis in the guide?

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Raphael Ferreira 2018-3-8

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https://ww2.mathworks.cn/matlabcentral/answers/387194-how-to-give-print-of-a-certain-axis-in-the-guide

编辑： Raphael Ferreira 2018-3-15

I'm trying to get print out of a particular axis where the video is but I can not. I can only print from the whole window, but not from a specific axis. The function I used was:

set (gcf, 'PaperPositionMode', 'auto');

print ('PeaksSurface', '-dpng', '-r0');

Result:

Only prints the entire screen. I need to print only the video.

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Walter Roberson 2018-3-9

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https://ww2.mathworks.cn/matlabcentral/answers/387194-how-to-give-print-of-a-certain-axis-in-the-guide#answer_309336

https://www.mathworks.com/matlabcentral/fileexchange/23629-export-fig

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Raphael Ferreira 2018-3-12

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I faced another problem.

My code is written in Portuguese, so I'm going to try to explain it.

- The panel on the left (showing the arduino board) has an axis with the tag "eixoVideo". To be clearer: eixoVideo is the tag of the AXIS, not the panel's.

- The empty panel on the right has an axis with the tag "eixoTracado". Again: eixoTracado is the tag of the AXIS, not the panel's.

So now, here is what I am doing:

h = guihandles; % shows the available handles of the GUI
F = getframe(h.eixoVideo); % gets a snapshot of the image in the video axis
Image = frame2im(F); % transforms the frame into an image
imwrite(Image, 'Image.png') % saves the image

In order to understand how the code works, I commented the above code, ran the GUI, and tried to run these 4 lines of code in the command window separatedly (line by line). After I ran the first line, the handle "eixoVideo" wasn't there, but the handle "eixoTracado" was.

So I tried to switch axes: I put the video in "eixoTracado", and left the "eixoVideo" empty. As I expected, when I ran "h = guihandles;" , the handle "eixoVideo" appeared, but "eixoTracado" was gone.

Does that mean I can't use the axis handle (eixoVideo) when I'm using it to transmit video? If it doesn't, how do I solve this problem?

Thanks in advance!!!