Computes node coordinates using the Sugiyama hierarchical layout algorithm.
Optimized for directed acyclic graphs (DAGs), placing nodes in layers to
emphasize hierarchical structure and causal flow from top to bottom.
A data.frame with columns name, x, and y containing node
names and their coordinates.
Arguments
x
A caugi object. Must contain only directed edges.
packing_ratio
Aspect ratio for packing disconnected components
(width/height). Default is the golden ratio (1.618) which works well with
widescreen displays. Use 1.0 for square grid, 2.0 for wider layouts,
0.5 for taller layouts, Inf for single row, or 0.0 for single column.