Reset User Changes

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

Section

When layout.uirevision changes on each update, plotly.js resets the user's interactive state back to the original view — as if the chart was freshly rendered. This is useful when the data changes so significantly that the old zoom window is no longer meaningful.

Two-cell pattern: evaluate Cell A first, zoom in on the chart, then evaluate Cell B. Your zoom will reset on every update.

Cell A — create the widget

alias Plotly.{Figure, Scatter}

kino =
  Figure.new(
    data: [Scatter.new(
      x: Enum.to_list(1..20),
      y: Enum.map(1..20, fn _ -> :rand.uniform() * 10 end),
      mode: "lines+markers",
      name: "live data"
    )],
    layout: %{
      title: "Step 0 — zoom in, then run Cell B",
      uirevision: 0
    }
  )
  |> Plotly.show()

Cell B — push updates (zoom resets each time)

for i <- 1..8 do
  new_y = Enum.map(1..20, fn _ -> :rand.uniform() * 10 end)

  Figure.new(
    data: [Scatter.new(x: Enum.to_list(1..20), y: new_y, mode: "lines+markers", name: "live data")],
    layout: %{title: "Update #{i} — zoom reset (uirevision: #{i})", uirevision: i}
  )
  |> then(&Plotly.Kino.PlotlyLive.push(kino, &1))

  Process.sleep(600)
end

:ok