Evaluate code on bodybuildr's measuring device — with_measure

Text and grob sizes depend on the active graphics device. bodybuildr measures on a hidden PDF device of the same kind [export_pdf()] writes with, so measurements match the exported file and no `Rplots.pdf` is created. The caller's active device is restored afterwards. During [export_pdf()] the export device itself is used.

Usage

with_measure_device(expr)

Arguments

expr: Code that converts units or measures grobs.

Value

The value of `expr`.

Examples

with_measure_device(
  grid::convertWidth(grid::stringWidth("Hello"), "in", valueOnly = TRUE)
)
#> [1] 0.4027778