jjulianf
jjulianf

Reputation: 157

How to add an object to the key/legend in gnuplot?

I use gnuplot to plot several graphs.

I use the set key command in order to have a legend of my graphs.

Now I added a huge rectangle with set object rect to mark an important zone in the diagram.

What I need is the discription (or better the title) of that rectangle in the key box.

How can I add the title or label of a specific object to the key box?

Upvotes: 1

Views: 1263

Answers (1)

user8153
user8153

Reputation: 4095

I don't think you can add arbitrary objects to the legend, but you can add rectangles by using an empty boxes plot:

set object rectangle from 5,10 to 7,60 fs empty border 2
plot x**2 w l, NaN title "Region of interest" with boxes lt 2

enter image description here

Upvotes: 2

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