Package index

Drawing networks

The main function of the package. nplot() draws a network using the grid graphics system and works with igraph, network, and matrix objects.

nplot() print(<netplot>)

Plot a network

Mapping attributes with formulas

Map vertex and edge aesthetics (colors, shapes, sizes, widths) directly from graph attributes. Edge colors use the richer ego()/alter() grammar.

color_formula() ego() alter()

Edge-color formulas in netplot

Editing and querying a plot

Retrieve and modify the graphical parameters of an existing netplot object, or interactively locate a vertex.

set_gpar() set_edge_gpar() set_vertex_gpar() get_vertex_gpar() get_edge_gpar() get_gpar()

Set/retrieve graphical parameters of a netplot object

locate_vertex()

Find a vertex in the current plot

Legends and color keys

Annotate a plot with legends and color keys.

nplot_legend() print(<netplot_legend>)

Add legend to a netplot object

colorkey()

Function to create a color key

Colors

Helpers for building color scales and gradients.

colorRamp2()

A faster implementation of grDevices::colorRamp for linear interpolation.

make_colors() make_edges_colors() make_vertex_colors()

Create a vector of colors for vertices and edges

segments_gradient()

Draw segments colored by gradients

Low-level drawing primitives

Building blocks used internally by nplot(), exposed for advanced grid graphics work.

npolygon()

n-sided polygons Calculate the coordinates for an nsided polygon

piechart()

A flexible piechart.

Base-graphics backend

An experimental base-graphics implementation of nplot.

nplot_base()

nplot using base graphics