Jet Colorscale

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

Section

"Jet" is the classic rainbow colorscale (blue → cyan → green → yellow → red). Note: it is not perceptually uniform — "Viridis" or "Plasma" are generally preferred for scientific data.

alias Plotly.{Figure, Heatmap}

z = for i <- 0..9, do: (for j <- 0..9, do: :math.sin(i / 3.0 + j / 5.0) * 10)

Figure.new()
|> Figure.add_trace(Heatmap.new(z: z, colorscale: "Jet"))
|> Figure.update_layout(title: "Jet Colorscale Heatmap")
|> Plotly.show()