TermUI.Widgets.LineChart (TermUI v0.2.0)

Line chart widget using Braille patterns for sub-character resolution.

Each Braille character cell is 2 dots wide and 4 dots tall, enabling smooth line rendering in text mode. Perfect for time series visualization.

Usage

LineChart.render(
  series: [
    %{data: [1, 3, 5, 2, 8], color: :blue},
    %{data: [2, 4, 3, 6, 4], color: :red}
  ],
  width: 40,
  height: 10
)

Braille patterns use Unicode range U+2800 to U+28FF. Each cell has 8 dots arranged as:

Converts coordinates to a single Braille character.

empty_braille()

Returns an empty Braille character.

full_braille()

Returns a full Braille character (all dots).

render(opts)

Renders a line chart using Braille patterns.

@spec dots_to_braille([{0 | 1, 0..3}]) :: String.t()

Converts coordinates to a single Braille character.

Useful for drawing individual points.

@spec empty_braille() :: String.t()

Returns an empty Braille character.

@spec full_braille() :: String.t()

Returns a full Braille character (all dots).

@spec render(keyword()) :: TermUI.Component.RenderNode.t()

Renders a line chart using Braille patterns.