Simple Inset Graph

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

Section

An inset is a small subplot overlaid on top of the main plot. Achieved by giving xaxis2 and yaxis2 fractional domains in the upper-right corner of the figure space (e.g. 0.6–1.0). Both axes occupy the same figure area — the inset "floats" over the main chart.

alias Plotly.{Figure, Scatter}

x = Enum.map(0..49, & &1 / 10)
y = Enum.map(x, &:math.sin/1)

# Zoomed region for inset
x_inset = Enum.map(0..9, & &1 / 10)
y_inset = Enum.map(x_inset, &:math.sin/1)

Figure.new()
|> Figure.add_trace(Scatter.new(x: x, y: y, name: "sin(x)"))
|> Figure.add_trace(
  Scatter.new(x: x_inset, y: y_inset, xaxis: "x2", yaxis: "y2", name: "Zoom")
)
|> Figure.update_layout(
  title: "Simple Inset Graph",
  xaxis2: %{domain: [0.6, 1.0], anchor: "y2"},
  yaxis2: %{domain: [0.6, 1.0], anchor: "x2"}
)
|> Plotly.show()