MATLAB: Is there a way to programmatically pin an annotation to a set of axes in MATLAB

annotation;MATLABobjectpin

I am creating annotations using the ANNOTATION function and I want to programmatically pin the annotations to a specified set of axes.

Best Answer

The ability to programmatically pin annotations is not available in MATLAB.

There is an unsupported workflow that can achieve this effect through undocumented functions. Since this functionality is undocumented, it may be subject to change in a future release of MATLAB. For more information on how to do this, please refer to the following blog post:

https://undocumentedmatlab.com/articles/pinning-annotations-to-graphs/

Alternatively, you can work around this issue by pinning annotations manually. You can use any of the methods described below.

1. Right-click on the object to display its context menu and select "Pin".

2. Select the "Pin icon" in the Plot Edit Toolbar.

3. Select "Edit -> Pin Object" from the Menu bar.

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MATLAB: How to pin annotations (or text) to a graph below the x-axis

You can use the ‘\uparrow’ text character to plot the arrows. It may not be quite the result you want, but it’s likely the only option you have.

For example:

d = rand(20);
figure(1)
imagesc(d)
text(5, 22, sprintf('\\uparrow\nLTO'), 'HorizontalAlignment','center', 'FontWeight','bold')

MATLAB: Am I unable to use the serial port after a hardware reset if the port was open in MATLAB

When a serial port connection is opened and the device becomes unavailable, the device remains unavailable after reconnecting. There is currently no way in MATLAB to fully reset the status of this connection, once this state is reached.

As a workaround you can first delete the serial port connection and then reconnect the device. For instance:

myComPort = serial('COM5');
fopen(myComPort);
% now disconnect the device
delete(myComPort)
clear myComPort
% now connect the device again, the following will now be successful:
myComPort = serial('COM5');
fopen(myComPort);

Best Answer

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MATLAB: How to pin annotations (or text) to a graph below the x-axis

MATLAB: Am I unable to use the serial port after a hardware reset if the port was open in MATLAB

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