graphic-devices: Create a group of named graphic devices

In dipsaus: A Dipping Sauce for Data Analysis and Visualizations

Create a group of named graphic devices

Description

Create a group of named graphic devices

Usage

dev_create(..., env = parent.frame(), attributes = list())

get_dev_attr(which, dev = grDevices::dev.cur(), ifnotfound = NULL)

Arguments

...	named expressions to launch devices
env	environment to evaluate expressions
attributes	named list; names correspond to device names and values are attributes to set to the devices
which	which attribute to obtain
dev	which device to search for attributes
ifnotfound	value to return if attribute is not found

Value

A list of functions to query, control, and switch between devices

Examples

## Not run:  ## Unix-specific example

# Create multiple named devices, setting attributes to the second graph
devs <- dev_create(
  line = X11(), points = x11(),
  attributes = list(points = list(pch = 16))
)

# switch to device named "points"

devs$dev_which('points')

# Plot points, with pch given as preset
plot(1:10, pch = get_dev_attr(which = 'pch', ifnotfound = 1))

# switch to "line" device
devs$dev_switch('line')
plot(1:100, type='l')

# Create another group with conflict name
dev_another <- dev_create(line = X11())

# Query device name with 'line'
dev_another$dev_which('line')  # 4
devs$dev_which('line')  # 2, doesn't conflict with the new groups

dev.list()
# close one or more device
dev_another$dev_off('line')
dev.list()

# close all devices
devs$dev_off()
dev.list()


## End(Not run)

dipsaus documentation built on April 4, 2025, 5:11 a.m.