graphlayouts (version 1.2.2)

annotate_circle: annotate concentric circles

Description

annotate concentric circles

Usage

annotate_circle(cent, col = "#00BFFF", format = "", pos = "top", text_size = 3)

Value

annotated concentric circles around origin

Arguments

cent

centrality scores used for layout

col

color of text

format

either empty string or 'scientific'

pos

position of text ('top' or 'bottom')

text_size

font size for annotations

Details

this function is best used with layout_with_centrality together with draw_circle.

Examples

library(igraph)

g <- sample_gnp(10, 0.4)
if (FALSE) {
library(ggraph)
ggraph(g, layout = "centrality", centrality = closeness(g)) +
    draw_circle(use = "cent") +
    annotate_circle(closeness(g), pos = "bottom", format = "scientific") +
    geom_edge_link() +
    geom_node_point(shape = 21, fill = "grey25", size = 5) +
    theme_graph() +
    coord_fixed()
}