annotate concentric circles

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

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

Value

annotated concentric circles around origin

Details

this function is best used with layout_with_centrality together with draw_circle.

Examples

library(igraph)
#> #> Attaching package: ‘igraph’
#> The following objects are masked from ‘package:stats’: #> #> decompose, spectrum
#> The following object is masked from ‘package:base’: #> #> union
library(ggraph)
#> Loading required package: ggplot2
g <- sample_gnp(10,0.4) if (FALSE) { 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() }