This layout function lets you pass the node positions in manually. Each row in the supplied data frame will correspond to a vertex in the igraph object matched by index.
layout_igraph_manual(graph, node.positions, circular)An igraph object
A data.frame with the columns x and y
(additional columns are ignored).
Ignored
A data.frame with the columns x, y, circular as
well as any information stored as vertex attributes on the igraph object.
Other layout_igraph_*: layout_igraph_auto,
layout_igraph_circlepack,
layout_igraph_dendrogram,
layout_igraph_hive,
layout_igraph_linear,
layout_igraph_partition,
layout_igraph_treemap