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I need to plot the potential energy curves, i.e. to do something similar to this:

enter image description here

I know, that I could use pgfplots to get the curves, but what I'm troubled about are the labels - I'd like to do both the curves' labels and the dissociation limits' labels (in the red rectangle) in a very same manner as here and I don't know, if it's possible easily in pgfplots.

Also, I was trying to find some package already offering this functionality, but I've found only endiagram which, while looking good, is meant more for teaching purposes, than for data-plotting.

So, would you, please, recommend me some easy way to do this, if possible?

closed as too broad by Stefan Pinnow, Sebastiano, Mensch, Raaja, schtandard Jun 10 at 8:38

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    It certainly is possible to reproduce the graph. I would suggest that you provide us with everything except the labels and legend and we will do the rest. Up to now it is a "just do the the graphics" question which usually gets closed as "off-topic" when not someone with much time does everything for you. – Stefan Pinnow Jun 6 at 14:24
  • @StefanPinnow Ok, I'll supplement the plot asap. – Eenoku Jun 6 at 14:25
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It should be possible to do that, by using the \node function of pgfplots, you can add a position where you want to have each of the labels.

I personally would use a legend that is outside the diagram for labeling the individual curves. But there are a dozend ways to do the legends, these can be found in chapter 4.9 of the pgfplots documentation.

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