Choreo.Dependency.Render.DOT (Choreo v0.14.1)

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DOT (Graphviz) rendering for Choreo.Dependency graphs.

Produces dependency-oriented visualisation:

  • Applications — 3D boxes
  • Libraries — cylinders
  • Modules — boxes
  • Interfaces — diamonds
  • Tests — note shapes

Edge styles:

  • uses — solid grey
  • imports — dashed
  • calls — dotted
  • inherits — solid bold
  • dev — dashed grey

Layout is top-to-bottom by default so dependencies point downward.

Summary

Functions

to_dot(deps, opts \\ [])

Renders a dependency graph to a DOT string.

Functions

to_dot(deps, opts \\ [])

@spec to_dot(Choreo.Dependency.t(), keyword()) :: String.t()

Renders a dependency graph to a DOT string.

Options

  • :theme — :default, :dark, :minimal, :warm, :forest, :ocean, or a Choreo.Theme struct
  • :rankdir — :tb (default), :lr, etc.
  • :engine — Graphviz layout engine ("dot", "neato", "twopi", "circo", "fdp", etc.)
  • :highlighted_nodes — list of node IDs to highlight
  • :highlighted_edges — list of {from, to} tuples or edge IDs to highlight

Examples

iex> deps = Choreo.Dependency.new()
iex> deps = deps
...>   |> Choreo.Dependency.add_application(:api, label: "API")
...>   |> Choreo.Dependency.add_module(:auth, label: "Auth")
...>   |> Choreo.Dependency.depends_on(:api, :auth)
iex> dot = Choreo.Dependency.Render.DOT.to_dot(deps)
iex> String.contains?(dot, "digraph")
true
iex> String.contains?(dot, "API")
true
iex> String.contains?(dot, "Auth")
true