# layout_with_lgl

##### Large Graph Layout

A layout generator for larger graphs.

- Keywords
- graphs

##### Usage

```
layout_with_lgl(graph, maxiter = 150, maxdelta = vcount(graph),
area = vcount(graph)^2, coolexp = 1.5, repulserad = area *
vcount(graph), cellsize = sqrt(sqrt(area)), root = NULL)
```with_lgl(...)

##### Arguments

- graph
The input graph

- maxiter
The maximum number of iterations to perform (150).

- maxdelta
The maximum change for a vertex during an iteration (the number of vertices).

- area
The area of the surface on which the vertices are placed (square of the number of vertices).

- coolexp
The cooling exponent of the simulated annealing (1.5).

- repulserad
Cancellation radius for the repulsion (the

`area`

times the number of vertices).- cellsize
The size of the cells for the grid. When calculating the repulsion forces between vertices only vertices in the same or neighboring grid cells are taken into account (the fourth root of the number of

`area`

.- root
The id of the vertex to place at the middle of the layout. The default value is -1 which means that a random vertex is selected.

- ...
Passed to

`layout_with_lgl`

.

##### Details

`layout_with_lgl`

is for large connected graphs, it is similar to the layout
generator of the Large Graph Layout software
(http://lgl.sourceforge.net/).

##### Value

A numeric matrix with two columns and as many rows as vertices.

##### See Also

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_gem`

,
`layout_with_graphopt`

,
`layout_with_kk`

,
`layout_with_mds`

,
`layout_with_sugiyama`

,
`layout_`

, `merge_coords`

,
`norm_coords`

, `normalize`

*Documentation reproduced from package igraph, version 1.2.3, License: GPL (>= 2)*