anyway to add text with given location at a 'pixel' based figure

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is there anyway to add text with given location at a 'pixel' based figure?
in the link below: https://www.mathworks.com/help/matlab/creating_plots/add-text-to-specific-points-on-graph.html it requires the position of a given point. but in my situation, I want to add the text at a given place of a pixel based figure.
Bests,
Yu

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Kevin Phung
Kevin Phung 2019-1-18
编辑:Kevin Phung 2019-1-18
yep!
just do something like:
text1 = uicontrol('Style','text','units','pixels',...
'position',[],'String','Hello')
Just call out the handle text1 and you can see what other properties of the text box you can adjust (color, fontsize,tag, etc..)
  5 个评论
Kevin Phung
Kevin Phung 2019-1-19
Ahh I see, usually, to center a text with respect to its borders, I add an extra element to the string, so
text1 = uicontrol('Style','text','units','pixels',...
'position',[],'String',{'','Experiment'})
should center the word 'Experiment' in the box. Not the most elegant solution.. but I hope the result is what yo uare looking for.
Yu Li
Yu Li 2019-1-19
I have slightly adjust the position to achieve the desired disply. thank you so much and wish you a wonderful weekend!
Bests,
Yu

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更多回答(1 个)

Walter Roberson
Walter Roberson 2019-1-19
text() permits you to specify horizontal and vertical alignment, and permits you to specify Position and to specify Units . So you can specify the location in Units pixels and you can control how the text aligns relative to that location.
  2 个评论
Yu Li
Yu Li 2019-1-19
Thank you Walter, however, unfortunately, there is no vertical alligment selection....
https://www.mathworks.com/matlabcentral/answers/328604-how-do-i-get-my-text-to-center-vertically-in-a-uicontrol-textbox
Walter Roberson
Walter Roberson 2019-1-19
I would not use uicontrol for this purpose . text() within an axes, annotation() for outside an axes.

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