Description Usage Arguments Details Value Author(s) References See Also Examples

Place vertices on the plane using the GEM force-directed layout algorithm.

1 2 3 4 5 6 7 8 9 10 |

`graph` |
The input graph. Edge directions are ignored. |

`coords` |
If not |

`maxiter` |
The maximum number of iterations to perform. Updating a single vertex counts as an iteration. A reasonable default is 40 * n * n, where n is the number of vertices. The original paper suggests 4 * n * n, but this usually only works if the other parameters are set up carefully. |

`temp.max` |
The maximum allowed local temperature. A reasonable default is the number of vertices. |

`temp.min` |
The global temperature at which the algorithm terminates
(even before reaching |

`temp.init` |
Initial local temperature of all vertices. A reasonable default is the square root of the number of vertices. |

`...` |
Passed to |

See the referenced paper below for the details of the algorithm.

A numeric matrix with two columns, and as many rows as the number of vertices.

Gabor Csardi csardi.gabor@gmail.com

Arne Frick, Andreas Ludwig, Heiko Mehldau: A Fast Adaptive
Layout Algorithm for Undirected Graphs, *Proc. Graph Drawing 1994*,
LNCS 894, pp. 388-403, 1995.

`layout_with_fr`

,
`plot.igraph`

, `tkplot`

Other graph layouts:
`add_layout_()`

,
`component_wise()`

,
`layout_as_bipartite()`

,
`layout_as_star()`

,
`layout_as_tree()`

,
`layout_in_circle()`

,
`layout_nicely()`

,
`layout_on_grid()`

,
`layout_on_sphere()`

,
`layout_randomly()`

,
`layout_with_dh()`

,
`layout_with_fr()`

,
`layout_with_graphopt()`

,
`layout_with_kk()`

,
`layout_with_lgl()`

,
`layout_with_mds()`

,
`layout_with_sugiyama()`

,
`layout_()`

,
`merge_coords()`

,
`norm_coords()`

,
`normalize()`

1 2 3 | ```
set.seed(42)
g <- make_ring(10)
plot(g, layout=layout_with_gem)
``` |

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