ggrastr (version 1.0.2)

rasterize: Rasterise ggplot layers Takes a ggplot object or a layer as input and renders their graphical output as a raster.

Description

Rasterise ggplot layers Takes a ggplot object or a layer as input and renders their graphical output as a raster.

Usage

rasterize(input, ...)

Value

A modified Layer object.

Arguments

input

ggplot plot object to rasterize

...

ignored

Author

Teun van den Brand <[e-mail]>

Details

The default dpi (NULL (i.e. let the device decide)) can conveniently be controlled by setting the option "ggrastr.default.dpi" (e.g. options("ggrastr.default.dpi" = 30) for drafting).

Examples

require(ggplot2)
# `rasterise()` is used to wrap layers
ggplot(pressure, aes(temperature, pressure)) +
  rasterise(geom_line())

# The `dpi` argument controls resolution
ggplot(faithful, aes(eruptions, waiting)) +
  rasterise(geom_point(), dpi = 5)

# The `dev` argument offers a few options for devices
require(ragg)
ggplot(diamonds, aes(carat, depth, z = price)) +
  rasterise(stat_summary_hex(), dev = "ragg")

# The `scale` argument allows you to render a 'big' plot in small window, or vice versa.
ggplot(faithful, aes(eruptions, waiting)) +
  rasterise(geom_point(), scale = 4)