Determine lines per page (LPP) and characters per page (CPP) based on font and page type

Usage

page_lcpp(
  page_type = page_types(),
  landscape = FALSE,
  font_family = "Courier",
  font_size = 8,
  lineheight = 1,
  margins = c(top = 0.5, bottom = 0.5, left = 0.75, right = 0.75),
  pg_width = NULL,
  pg_height = NULL,
  fontspec = font_spec(font_family, font_size, lineheight)
)

Arguments

page_type: (string)
name of a page type. See page_types. Ignored when pg_width and pg_height are set directly.
landscape: (flag)
whether the dimensions of page_type should be inverted for landscape orientation. Defaults to FALSE, ignored when pg_width and pg_height are set directly.
font_family: (string)
name of a font family. An error will be thrown if the family named is not monospaced. Defaults to "Courier".
font_size: (numeric(1))
font size. Defaults to 12.
lineheight: (numeric(1))
line height. Defaults to 1.
margins: (numeric(4))
named numeric vector containing "bottom", "left", "top", and "right" margins in inches. Defaults to .5 inches for both vertical margins and .75 for both horizontal margins.
pg_width: (numeric(1))
page width in inches.
pg_height: (numeric(1))
page height in inches.
fontspec: (font_spec)
a font_spec object specifying the font information to use for calculating string widths and heights, as returned by font_spec().

Value

A named list containing LPP (lines per page) and CPP (characters per page) elements suitable for use by the pagination machinery.

Examples

page_lcpp()
#> $cpp
#> [1] 105
#> 
#> $lpp
#> [1] 90
#> 
page_lcpp(font_size = 10)
#> $cpp
#> [1] 84
#> 
#> $lpp
#> [1] 72
#> 
page_lcpp("a4", font_size = 10)
#> $cpp
#> [1] 81
#> 
#> $lpp
#> [1] 76
#> 

page_lcpp(margins = c(top = 1, bottom = 1, left = 1, right = 1))
#> $cpp
#> [1] 97
#> 
#> $lpp
#> [1] 81
#> 
page_lcpp(pg_width = 10, pg_height = 15)
#> $cpp
#> [1] 127
#> 
#> $lpp
#> [1] 126
#>