Wrapping label text in Plots.jl

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1

I have a plot of only two lines with long legend labels. The plot doesn’t have enough horizontal space unless the labels are wrapped. How do I do that?

I’m using pgfplotsx() backend in Plots.jl for LaTeX-style plots, so I would prefer suggestions within this backend.

2

Try this:

using Plots; pgfplotsx()
default(legend_font_halign=:left)

x = 1:10; y1, y2 = sin.(x)./x, cos.(x)./x
label1a = "this is a very long pgfplotsx() label, "^2
label1b = "split into a new line"
label2a = "here is another quite long label, "^2
label2b = "split into a new line"
plot(x, y1, label=label1a, legend=:topright, fg_legend=nothing);
plot!([x[1]], [y1[1]], lc=:white, label=label1b);
plot!(x, y2, label=label2a);
plot!([x[1]], [y1[1]], lc=:white, label=label2b)

Plots_pgfplots_wrap_long_legends
Plots_pgfplots_wrap_long_legends1638×1017 90.4 KB

3 Likes
3

This is so smart. Thank you!

4

Two points that the solution may be refined:

  • The legend line is only aligned with the first label. It would be nicer to align it between the first two labels.
  • Inserting two phantom series breaks auto coloring.
5

Try legend=:top instead of :topright

6

it’s still aligned to the first row.
image

7

Try: default(legend_font_halign=:center) to align all with your prefered default, or you can add the plot keyword, on case by case basis:
legend_font_halign=:left
legend_font_halign=:center

8

Does halign affect vertical placement?

9

Would it be possible to see an example of the desired result?
As far as automatic coloring is concerned, that can be managed.

10

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