WebGL Polar Chart

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

Section

Scatterpolargl is the WebGL-accelerated version of Scatterpolar. It has an identical API but renders using WebGL, making it much faster for large datasets (thousands of points) in polar coordinates.

alias Plotly.{Figure, Scatterpolargl}

:rand.seed(:exsss, {42, 42, 42})

# 1000 random polar points
n = 1000
r     = for _ <- 1..n, do: :rand.uniform()
theta = for _ <- 1..n, do: :rand.uniform() * 360

Figure.new()
|> Figure.add_trace(
  Scatterpolargl.new(
    r: r,
    theta: theta,
    mode: "markers",
    name: "1000 points (WebGL)",
    marker: %{size: 3, color: theta, colorscale: "Viridis", showscale: true}
  )
)
|> Figure.update_layout(
  title: "WebGL Polar Chart — 1000 Random Points"
)
|> Plotly.show()