apply_graph_theme: Apply multiple DiagrammeR global graph attributes

In rock: Reproducible Open Coding Kit

Apply multiple DiagrammeR global graph attributes

Description

Apply multiple DiagrammeR global graph attributes

Usage

apply_graph_theme(graph, ...)

Arguments

graph	The DiagrammeR::DiagrammeR graph to apply the attributes to.
...	One or more character vectors of length three, where the first element is the attribute, the second the value, and the third, the attribute type (graph, node, or edge).

Value

The DiagrammeR::DiagrammeR graph.

Examples

### Create an example source
exampleSource <- '
---
codes:
  -
    id: parentCode
    label: Parent code
    children:
      -
        id: childCode1
      -
        id: childCode2
  -
    id: childCode3
    label: Child Code
    parentId: parentCode
    children: [grandChild1, grandChild2]
---
';

### Parse it
parsedSource <-
  rock::parse_source(
    text = exampleSource
  );

### Extract the deductive code tree from
### the parsed source
deductiveCodeTree <-
  parsedSource$deductiveCodeTrees;

### Convert it to a DiagrammeR graph
miniGraph <-
  data.tree::ToDiagrammeRGraph(
    deductiveCodeTree
  );

### Show the graph
DiagrammeR::render_graph(
  miniGraph
);

### Apply a "theme" (three attributes)
miniGraph_themed <-
  rock::apply_graph_theme(
    miniGraph,
    c("rankdir", "TB", "graph"),
    c("shape", "square", "node"),
    c("style", "solid", "node"),
    c("fontname", "Arial", "node"),
    c("fontcolor", "#0000BB", "node"),
    c("color", "#BB0000", "node")
  );

### Show the updated graph
DiagrammeR::render_graph(
  miniGraph_themed
);

rock documentation built on June 14, 2025, 1:08 a.m.