Sunburst with Repeated Labels

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

Section

If the same label string appears under multiple parents (e.g. "Petroleum" under both "North America" and "Europe"), Plotly cannot distinguish them by label alone. Use ids: to assign a unique ID per node. labels: can then repeat freely — they are display names only.

alias Plotly.{Figure, Sunburst}

Figure.new()
|> Figure.add_trace(
  Sunburst.new(
    ids: [
      "North America", "Europe", "Australia",
      "North America - Petroleum", "North America - Coal",
      "Europe - Petroleum", "Europe - Coal",
      "Australia - Petroleum", "Australia - Coal"
    ],
    labels: [
      "North America", "Europe", "Australia",
      "Petroleum", "Coal",
      "Petroleum", "Coal",
      "Petroleum", "Coal"
    ],
    parents: [
      "", "", "",
      "North America", "North America",
      "Europe", "Europe",
      "Australia", "Australia"
    ],
    values: [0, 0, 0, 50, 25, 40, 30, 20, 10],
    branchvalues: "remainder"
  )
)
|> Figure.update_layout(title: "Sunburst with Repeated Labels")
|> Plotly.show()