as_vellum() converts a grid grob tree — or a ggplot2 plot — into a
vl_scene() by letting an offscreen grid device resolve all coordinates to
absolute units, then emitting vellum grobs. render_grid() does that and
writes the result. This is the interop path (grid-based graphics rendered by
vellum's deterministic backend); a native graphics device is future work.
Usage
as_vellum(x, width = 7, height = 7, dpi = 96, bg = "white")
render_grid(
x,
path,
width = 7,
height = 7,
dpi = 96,
bg = "white",
text = c("native", "outline")
)Arguments
- x
A grid grob/gTree/gtable, or a ggplot object.
- width, height
Page size in inches.
- dpi, bg
As in
vl_scene().- path
Output file (
.png/.svg/.pdf).- text
Passed to
render()(SVG text mode).
Examples
if (FALSE) { # \dontrun{
library(ggplot2)
p <- ggplot(mtcars, aes(wt, mpg)) + geom_point()
render_grid(p, "plot.png", width = 6, height = 4)
} # }