as.png.default: Convert to PNG by Default

In plotscale: Scale Graphics Devices Using Plot Dimensions

Description

Converts object to PNG. By default, device is scaled by plot size. Device is automatically closed and filename argument is returned.

Usage

## Default S3 method:
as.png(x, width = getOption("plotscale_png_width", 3),
  height = getOption("plotscale_png_height", 3), devsize = if (scaled)
  "devsize" else "unscaled", res = getOption("plotscale_res", 300),
  units = "in", scaled = getOption("plotscale_scaled", TRUE),
  filename = "Rplot%03d.png", ...)

Arguments

x	object
width	desired plot width
height	desired plot height
devsize	a function of x, width, height, and ... that calculates device size
res	passed to png
units	NOT passed to png; width and height always treated as inches regardless
scaled	whether to rescale width and height by plot size
filename	file name passed to png
...	other arguments to png and devsize

Value

(invisible) the filename argument

See Also

Other as.png: as.png

Other devices: as.pdf.default, as.pdf, as.png

Examples

options(example.ask = FALSE)
options(device.ask.default = FALSE)
library(lattice)
as.png(xyplot(2~3), filename = tempfile())

plotscale documentation built on May 2, 2019, 6:50 a.m.