Layout with igraph — layout

Layout the graph using an igraph layout function. This function only works with the graph was initialised with an object of class igraph.

layout_igraph(g, ..., method = igraph::layout_nicely)

Arguments

g	An object of class `g2r` or `g2Proxy` as returned by `g2()` or `g2_proxy()`.
...	Any options to pass to the `method` function.
method	An igraph layout function to compute the nodes and edges (source and target) position on the canvas.

Details

The function runs the method to obtain the x and y coordinates. These are added to the nodes data.frame (extracted from initial graph) and to the edges data.frame, as x and y nested columns, e.g.: c(source_x, target_x). These x and y coordinates can be used in asp() (see example).

Examples

ig <- igraph::make_ring(100)

# use x and y for positioning
g2(ig, asp(x, y)) %>%
  layout_igraph() %>%
  fig_edge() %>%
  fig_point(asp(shape = "circle")) %>%
  axis_hide()