Extracting data from lines in a plot

2 visualizzazioni (ultimi 30 giorni)
Sina Abolhoseini
Sina Abolhoseini il 30 Mag 2014
Commentato: Hugo il 2 Giu 2014
Hi First I'd like to apologize for my poor english. I'm writing a program, in one part I am plotting different lines which allow the users to select a pair of them (lines) for further actions. To identify the best pairs user must be informed with critical information like (hour, height, magnitude ). I want to show this 3 as data tips. But I don't know how to show each lines properties differently.
As you see in the picture, Lines are labeled. For each number I have a magnitude. I want to show that Mag in the data tip! What you see in the picture is something fake which I made to show what I mean. It's a constant number for mag which must be something different for different lines.

Risposte (2)

Hugo il 30 Mag 2014
Have you tried using the command text()? Suppose that the tip of one of the lines is in (a,b). Then you can just do
That will just write some text at the tip of the line. You can write it wherever you want by changing the values of a and b. The values or a and b are scaled according to the axes.
Or do you want something that appears automatically only when the user is pointing at the line with the mouse.
Best regards,
  2 Commenti
Hugo il 2 Giu 2014
I think my second answer should solve this problem. What I suggested there was to attach to each line a contextual menu. To show specific data, just replace the labels with what you want to show. If not, I may still not get what you want.

Accedi per commentare.

Hugo il 30 Mag 2014
Just in case, you could also provide a contextual menu by doing the following
Here hmenu is a handle for the contextual menu, and hline is the handle of the line you created. For seeing the menu, the user must right-click on the line.
Hope this helps.


Scopri di più su Graphics Performance in Help Center e File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by