Restyle Button — Multiple Attributes

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

Section

A single restyle call can update multiple trace properties at once by including all keys in the update map. This is more efficient than chaining multiple calls.

With multiple traces, pass a list of values — one per trace — or a scalar to apply to all.

alias Plotly.{Figure, Scatter}

xs = Enum.to_list(1..20)
ys_a = Enum.map(xs, fn x -> :math.sin(x / 3.0) end)
ys_b = Enum.map(xs, fn x -> :math.cos(x / 3.0) end)

Figure.new()
|> Figure.add_trace(Scatter.new(x: xs, y: ys_a, name: "Trace A", mode: "lines"))
|> Figure.add_trace(Scatter.new(x: xs, y: ys_b, name: "Trace B", mode: "lines"))
|> Figure.update_layout(
  title: "Restyle — Multiple Attributes",
  updatemenus: [%{
    type: "buttons",
    direction: "down",
    x: 1.1,
    y: 1.0,
    showactive: true,
    buttons: [
      %{
        label: "Default",
        method: "restyle",
        args: [%{
          mode: "lines",
          line: [%{color: "steelblue", width: 2}, %{color: "coral", width: 2}],
          opacity: 1.0
        }]
      },
      %{
        label: "Thick Dashed",
        method: "restyle",
        args: [%{
          mode: "lines",
          line: [%{color: "purple", width: 4, dash: "dash"}, %{color: "green", width: 4, dash: "dash"}],
          opacity: 0.9
        }]
      },
      %{
        label: "Markers Only",
        method: "restyle",
        args: [%{
          mode: "markers",
          marker: [%{size: 10, color: "steelblue", symbol: "circle"},
                   %{size: 10, color: "coral",     symbol: "diamond"}],
          opacity: 0.8
        }]
      }
    ]
  }]
)
|> Plotly.show()