layout {RBGL}R Documentation

Layout an undirected graph in 2D

Description

Layout an undirected graph in 2D

Usage

circle.layout(g, radius=1)
kamada.kawai.spring.layout( g, edge_or_side=1, es_length=1 )

Arguments

g an instance of the graph class with edgemode “undirected”
radius radius of a regular n-polygon
edge_or_side boolean indicating the length is for an edge or for a side, default is for an edge
es_length the length of an edge or a side for layout

Details

According to the documentation on these algorithms in Boost Graph Library: circle.layout layouts the graph with the vertices at the points of a regular n-polygon. The distance from the center of the polygon to each point is determined by the radius parameter.

kamada.kawai.spring.layout provides Kamada-Kawai spring layout for connected, undirected graphs. User provides either the unit length e of an edge in the layout or the length of a side s of the display area.

randomGraphLayout places the points of the graph at random locations.

fruchtermanReingoldForceDirectedLayout performs layout of unweighted, undirected graphs. It handles disconnected graphs. It's a force-directed algorithm.

gursoyAtunLayout performs layout by distributing vertices within a topology. It's based on self-organized maps.

See documentation on this function in Boost Graph Library for more details.

Value

A list of the (x, y)-coordinates for vertices in the graph.

Author(s)

Li Long <li.long@isb-sib.ch>

References

Boost Graph Library by Siek et al.

See Also

Examples

coex <- fromGXL(file(system.file("XML/conn.gxl",package="RBGL"), open="r"))
coex <- ugraph(coex)
circle.layout(coex)
kamada.kawai.spring.layout(coex)
randomGraphLayout(coex)
fruchtermanReingoldForceDirectedLayout(coex, 10, 10)

[Package RBGL version 1.10.0 Index]