Plot a glycan structure represented as an igraph tree

Visualize a glycan structure encoded as an igraph object produced by build_glycan_igraph. This plot is mainly intended for inspecting glycan topology (branching, residue types, connectivity).

plot_glycan_tree(g)

Arguments

g

An igraph object representing a glycan tree from build_glycan_igraph.

Value

A glycan topology plot is drawn as a side effect.

Examples

# Example: parse a pGlyco3-style glycan expression into a tree
pGlyco_expr <- "(N(N(H(H(H))(H(H)(H)(H(H))))))"

# Convert to glycan tree structure
tree <- pGlyco3_to_tree(pGlyco_expr)

# Explore parsed nodes and edges
tree$node
#>  [1] "N" "N" "H" "H" "H" "H" "H" "H" "H" "H"
tree$edge
#> [1] "a-b" "b-c" "c-d" "d-e" "c-f" "f-g" "f-h" "f-i" "i-j"

# Build igraph representation
g <- build_glycan_igraph(tree)
plot_glycan_tree(g)