Add Carpet Scatter Trace

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

Section

Scattercarpet overlays points or lines on a Carpet trace. The carpet: "c1" field links it to the base carpet. a: and b: are in carpet parameter space (not data space). line: %{shape: "spline", smoothing: 1} produces a smooth curve between the points.

alias Plotly.{Figure, Carpet, Scattercarpet}

a_grid = Enum.map([4, 4, 4, 4.5, 4.5, 4.5, 5, 5, 5, 6, 6, 6], &(&1 * 1.0e-6))
b_grid = Enum.map([1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 2, 3], &(&1 * 1.0e6))

Figure.new()
|> Figure.add_trace(
  Carpet.new(
    carpet: "c1",
    a: a_grid,
    b: b_grid,
    y: [2, 3.5, 4, 3, 4.5, 5, 5.5, 6.5, 7.5, 8, 8.5, 10],
    aaxis: %{tickprefix: "a = ", ticksuffix: "m", smoothing: 1, minorgridcount: 9},
    baxis: %{tickprefix: "b = ", ticksuffix: "Pa", smoothing: 1, minorgridcount: 9}
  )
)
|> Figure.add_trace(
  Scattercarpet.new(
    carpet: "c1",
    a: Enum.map([4, 4.5, 5, 6], &(&1 * 1.0e-6)),
    b: Enum.map([1.5, 2.5, 1.5, 2.5], &(&1 * 1.0e6)),
    line: %{shape: "spline", smoothing: 1}
  )
)
|> Figure.update_layout(title: "Carpet Plot with Scatter Trace")
|> Plotly.show()