layout_igraph_manual(graph, node.positions, circular)x and y
(additional columns are ignored).x, y, circular as
well as any information stored as vertex attributes on the igraph object.
layout_igraph_auto,
  layout_igraph_circlepack,
  layout_igraph_dendrogram,
  layout_igraph_hive,
  layout_igraph_linear,
  layout_igraph_partition,
  layout_igraph_treemap