How to visualize data names in plots with the data cursor

Question

Leonardo Vettore 2016-7-2

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https://ww2.mathworks.cn/matlabcentral/answers/293471-how-to-visualize-data-names-in-plots-with-the-data-cursor

评论： Antonio Rubio 2019-12-23

Let's assume that I have 3 functions plotted in the same figure, named 'a', 'b' and 'c'. While I watch the figure I would like to be able to go over one of the functions with the cursor and see its name. Is it possible maybe to change what the "Data cursor" is displaying and add to the coordinates a custom string? Thank you all!

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Answer 1

Steven Lord 2016-7-2

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https://ww2.mathworks.cn/matlabcentral/answers/293471-how-to-visualize-data-names-in-plots-with-the-data-cursor#answer_227462

Change the UpdateFcn property of the datacursormode object.

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Leonardo Vettore 2016-7-2

Can you make an example code? Because I read that, but I don't understand how to pass the names that I want to show to that function

Antonio Rubio 2019-12-23

I'm also trying to solve the same problem on MATLAB R2019a. I have a figure with many different traces and would to display the name of the trace along with the X and Y coordinates. I found one solution that displays the name but in the command window. Another one that allows you to modify the data tip. However I cant figure how to get the data tip to display the name of the trace. Right now the only way to know is if I creat a legend. The problem is there are a lot of traces and the colors repeat. Thank you!

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