annotate_clade: Add clade labels next to collapsed triangles

In Rclade: Automated Deep-Time Phylogenetic Tree Collapsing and Visualization

Add clade labels next to collapsed triangles

Description

Supports both rectangular and circular (fan) layouts. For rectangular: labels are at the tips' x-position, extending rightward. For circular: labels are at the tips' x-position (outer radius), angled along the MRCA's angular position, extending outward.

Usage

annotate_clade(
  p,
  tree,
  mrca_map,
  colors,
  show_count = TRUE,
  offset = 0,
  fontsize = 3,
  singleton_map = NULL
)

Arguments

p	ggplot object
tree	phylo object
mrca_map	Output of compute_mrca_map()
colors	Named color vector
show_count	Whether to show species count
offset	Offset from the tree's right edge (tips). Default 0 places labels right at the tip line.
fontsize	Font size for labels (default 3)
singleton_map	Optional named list mapping single-species group names to their tip label. When provided, these tips are also labeled.

Value

ggplot object

Rclade documentation built on Sept. 26, 2026, 5:07 p.m.