layout_igraph: Layout with igraph
In devOpifex/g2r: Interactive Grammar of Graphics

Description Usage Arguments Details Examples

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

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

`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.

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).

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()