Change the Default Locale

Mix.install([
  {:plotly_ex, "~> 0.3"},
  {:kino, "~> 0.18"}
])

Section

config.locale sets the interface language for the chart. PlotlyLive automatically loads the corresponding locale registration script from the plotly CDN when this is set — no extra setup needed in Livebook.

Available locales include "fr", "de", "es", "zh-CN", "pt-BR", "ja", and many others. See the full list at https://github.com/plotly/plotly.js/tree/master/dist (files named plotly-locale-*.js).

alias Plotly.{Figure, Scatter}

Figure.new(
  data: [Scatter.new(x: [1, 2, 3, 4, 5], y: [2, 4, 1, 5, 3], mode: "lines+markers")],
  layout: %{title: "French locale — hover and modebar buttons translated"},
  config: %{locale: "fr"}
)
|> Plotly.show()

# German locale
Figure.new(
  data: [Scatter.new(x: [1, 2, 3, 4, 5], y: [5, 3, 7, 2, 8], mode: "lines+markers")],
  layout: %{title: "German locale"},
  config: %{locale: "de"}
)
|> Plotly.show()