This layout constrains node placement to a radius relative to its distance to a given node. It then uses stress majorisation to find an optimal node distribution according to this constraint.

layout_tbl_graph_focus(
  graph,
  focus,
  weights = NULL,
  niter = 500,
  tolerance = 1e-04,
  circular = TRUE
)

Arguments

graph

a tbl_graph object

focus

An expression evaluating to a selected node. Can either be a single integer or a logical vector with a single TRUE element.

weights

An expression evaluated on the edge data to provide edge weights for the layout. Currently ignored for the sparse version

niter

number of iterations during stress optimization

tolerance

stopping criterion for stress optimization

circular

ignored

Value

A data.frame with the columns x, y, circular, distance as well as any information stored as node variables in the tbl_graph object.

References

Brandes, U., & Pich, C. (2011). More flexible radial layout. Journal of Graph Algorithms and Applications, 15(1), 157-173.

See also