R: Draw concentric circles

draw_circle {graphlayouts} | R Documentation

## Draw concentric circles

### Description

Draw concentric circles

### Usage

    draw_circle(col = "#00BFFF", use = "focus", max.circle)

### Arguments

`col` | color of circles
`use` | one of 'focus' or 'cent'
`max.circle` | if use = 'focus' specifies the number of circles to draw

### Details

this function is best used with a concentric layout such as layout_with_focus and layout_with_centrality.

### Value

concentric circles around origin

### Examples

    library(igraph)
    library(ggraph)
    g <- sample_gnp(10,0.4)

    ## Not run:
    ggraph(g,layout = "centrality",centrality = degree(g))+
      draw_circle(use = "cent")+
      geom_edge_link()+
      geom_node_point(shape = 21,fill = "grey25",size = 5)+
      theme_graph()+
      coord_fixed()

    ## End(Not run)

[Package graphlayouts version 0.8.0 Index]