plotsize.default: Determine Plot Size by Default

In plotscale: Scale Graphics Devices Using Plot Dimensions

Description

Determines the size of a grid graphics plot conditional on device dimensions. Size is defined as physical width and height in inches of the first encountered panel as rendered on a device with the specified width and height. pdf() is used as the evaluation device. 'First encountered panel' is resolved by evaluating the output of a call to current.vpTree for the first viewport name containing 'panel' or 'subpanel'. The latter takes precedence if available, for intuitive handling of output from splom.

Usage

## Default S3 method:
plotsize(x, width, height,
  digits = getOption("plotscale_plotsize_digits", 3),
  pattern = c("subpanel\\b", "panel\\b"), index = 1, ...)

Arguments

x	object
width	device width in inches
height	device height in inches
digits	round result to this many decimal places
pattern	character: vector of search patterns to identify critical viewport set; first non-empty set is retained
index	integer: select this element of the critical viewport set
...	other arguments passed to pdf

Value

length 2 named list giving width and height in inches (class 'size') for the first panel

See Also

Other plotsize: as.size, plotsize, print.size

Examples

options(ask.default = FALSE)
options(device.ask.default = FALSE)
library(lattice)
p <- xyplot(2~3)
plotsize(p, width = 7, height = 7)

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