Polar Chart Subplots

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

Section

Multiple polar subplots use subplot: "polar" (default first polar) and subplot: "polar2" (second). Define each polar axis with layout.polar and layout.polar2 respectively. Use layout.grid for positioning.

alias Plotly.{Figure, Scatterpolar}

theta = for i <- 0..12, do: i * 30

Figure.new()
|> Figure.add_trace(
  Scatterpolar.new(
    r: [1, 2, 3, 4, 3, 2, 1, 2, 3, 4, 3, 2, 1],
    theta: theta,
    mode: "lines",
    fill: "toself",
    name: "Polar 1",
    subplot: "polar"
  )
)
|> Figure.add_trace(
  Scatterpolar.new(
    r: [4, 3, 2, 1, 2, 3, 4, 3, 2, 1, 2, 3, 4],
    theta: theta,
    mode: "lines",
    fill: "toself",
    name: "Polar 2",
    subplot: "polar2"
  )
)
|> Figure.update_layout(
  title: "Polar Chart Subplots",
  grid: %{rows: 1, columns: 2},
  polar: %{domain: %{column: 0}},
  polar2: %{domain: %{column: 1}}
)
|> Plotly.show()