For certain composition tasks it is beneficial to get the width of a string
as interpreted by the device that is going to plot it. grid provides this
through construction of a textGrob
and then converting the corresponding
grob width to e.g. cm, but this comes with a huge overhead.
string_widths_dev()
provides direct, vectorised, access to the graphic
device for as high performance as possible.
Arguments
- strings
A character vector of strings to measure
- family
The font families to use. Will get recycled
- face
The font faces to use. Will get recycled
- size
The font size to use. Will get recycled
- cex
The cex multiplier to use. Will get recycled
- unit
The unit to return the width in. Either
"cm"
,"inches"
,"device"
, or"relative"
Value
A numeric vector with the width of each of the strings given in
strings
in the unit given in unit
See also
Other device metrics:
string_metrics_dev()
Examples
# Get the widths as measured in cm (default)
string_widths_dev(c('a string', 'an even longer string'))
#> [1] 1.609549 4.536502