Matching Named Template Container Items

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

Section

When a figure item has a templateitemname that matches a template item's name, the figure item inherits all properties from the template item and can override them. Template items whose name has no matching figure item are not rendered.

alias Plotly.{Figure, Scatter}

template = %{
  layout: %{
    annotations: [
      %{name: "label_a", font: %{size: 18, color: "blue"}, showarrow: false},
      %{name: "label_b", font: %{size: 14, color: "red"}, showarrow: false}
    ]
  }
}

Figure.new()
|> Figure.add_trace(Scatter.new(x: [1, 2, 3], y: [1, 2, 1], mode: "markers"))
|> Figure.update_layout(
  title: "Matching Named Template Container Items",
  template: template,
  annotations: [
    %{templateitemname: "label_a", text: "Alpha", x: 1, y: 1},
    %{templateitemname: "label_b", text: "Beta", x: 3, y: 1}
  ]
)
|> Plotly.show()