coord_ip {ggip}

Coordinate system for IP data

Description

A ggplot2 coordinate system that maps a range of IP address space onto a two-dimensional grid using a space-filling curve.

coord_ip() forms the foundation of any ggip plot. It translates all ip_address and ip_network vectors to Cartesian coordinates, ready for use by ggplot2 layers (see Accessing Coordinates). This ensures all layers use a common mapping.

Usage

coord_ip(
  canvas_network = ip_network("0.0.0.0/0"),
  pixel_prefix = 16,
  curve = c("hilbert", "morton"),
  expand = FALSE
)

Arguments

canvas_network

An ip_network scalar that determines the region of IP space visualized by the entire 2D grid. The default shows the entire IPv4 address space.

pixel_prefix

An integer scalar that sets the prefix length of the network represented by a single pixel. The default value is 16. Increasing this effectively improves the resolution of the plot.

curve

A string to choose the space-filling curve. Choices are "hilbert" (default) and "morton".

expand

If TRUE, adds a small expanded margin around the data grid. The default is FALSE.

Accessing Coordinates

coord_ip() stores the result of the mapping in a nested data frame column. This means each ip_address or ip_network column in the original data set is converted to a data frame column. When specifying ggplot2 aesthetics, you'll need to use $ to access the nested data (see Examples).

Each ip_address column will be replaced with a data frame containing the following columns:

Column name	Data type	Description
ip	ip_address	Original IP data
x	integer	Pixel x
y	integer	Pixel y

Each ip_network column will be replaced with a data frame containing the following columns:

Column name	Data type	Description
ip	ip_network	Original IP data
xmin	integer	Bounding box xmin
ymin	integer	Bounding box ymin
xmax	integer	Bounding box xmax
ymax	integer	Bounding box ymax

See Also

vignette("visualizing-ip-data") describes the mapping in more detail.

Examples

suppressPackageStartupMessages(library(dplyr))

tibble(address = ip_address(c("0.0.0.0", "128.0.0.0", "192.168.0.1"))) %>%
  ggplot(aes(x = address$x, y = address$y, label = address$ip)) +
  geom_point() +
  geom_label(nudge_x = c(10, 0, -10), nudge_y = -10) +
  coord_ip(expand = TRUE) +
  theme_ip_light()

tibble(network = ip_network(c("0.0.0.0/8", "224.0.0.0/4"))) %>%
  mutate(
    start = network_address(network),
    end = broadcast_address(network)
  ) %>%
  ggplot() +
  geom_point(aes(x = start$x, y = start$y), color = "blue") +
  geom_point(aes(x = end$x, y = end$y), color = "red") +
  geom_rect(
    aes(xmin = network$xmin, xmax = network$xmax, ymin = network$ymin, ymax = network$ymax),
    alpha = 0.5, fill = "grey"
  ) +
  coord_ip(curve = "morton", expand = TRUE) +
  theme_ip_light()