igraph (version 0.3.3)

plot.igraph: Plotting of graphs

Description

plot.graph is able to plot graphs to any R device. It is the non-interactive companion of the tkplot function.

Usage

plot.igraph(x, layout = layout.random, layout.par = list(), 
    labels = NULL, label.color = "darkblue", label.font = NULL, 
    label.degree = -pi/4, label.dist = 0, vertex.color = "SkyBlue2", 
    vertex.size = 15, edge.color = "darkgrey", edge.width = 1,
    edge.labels = NA, edge.lty=1, vertex.frame.color="black", margin=0,
    loop.angle=0, axes = FALSE, xlab = "", ylab = "",
    xlim=c(-1,1), ylim=c(-1,1), ...)

Arguments

x

The graph to plot.

layout

The coordinates of the vertices, or the method to calculate them. See the same argument of tkplot.

layout.par

List, the parameters of the layout function. See the same argument of tkplot.

labels

The labels of the vertices. See the same argument of tkplot.

label.color

The color(s) of the labels. See the same argument of tkplot.

label.font

The font to be used for the labels. Right now all labels use the same font.

label.degree

Specifies the placement of the labels of the vertices. See the same argument of tkplot.

label.dist

Specifies the placement of the vertex labels. See the same argument of tkplot.

vertex.color

The color(s) of the vertices. See the same argument of tkplot.

vertex.size

The size(s) of the vertices. See the same argument of tkplot.

edge.color

The color(s) of the edges. See the same argument of tkplot.

edge.width

The width(s) of the edges. See the same argument of tkplot.

edge.labels

Labels for the edges, this will be converted to a character vector. The default is NA which suppresses edge labels. The vector might contain NA's as well to suppress labels for some edges.

edge.lty

The line type for the edges, see the manual page of par for the possible values. This can be also a vector to define different a line type for each edge.

vertex.frame.color

The color(s) of the border of the vertices.

margin

The margin to add to each side of the plot.

loop.angle

Numeric vector or constant giving the angle in degrees for the drawing of the loop edges.

axes

Logical, whether to plot axes, defaults to FALSE.

xlab

The label of the horizontal axis. Defaults to the empty string.

ylab

The label of the vertical axis. Defaults to the empty string.

xlim

The limits for the horizontal axis, it is unlikely that you want to modify this.

ylim

The limits for the vertical axis, it is unlikely that you want to modify this.

...

Additional arguments, passed to plot.

Value

• Returns NULL, invisibly.

Details

One convenient way to plot graphs is to plot with tkplot first, handtune the placement of the vertices, query the coordinates by the tkplot.getcoords function and use them with plot to plot the graph to any R device. The additional arguments specified are passed to the plot function.

See Also

layout for different layouts, tkplot for the better description of the parameters and an interactive version.

Examples

g <- graph.ring(10)
plot(g, layout=layout.kamada.kawai, vertex.color="green")