| Type: | Package |
| Title: | Render SVG Images into PDF, PNG, (Encapsulated) PostScript, or Bitmap Arrays |
| Version: | 2.6.1 |
| Description: | Renders vector-based svg images into high-quality custom-size bitmap arrays using 'librsvg2'. The resulting bitmap can be written to e.g. png, jpeg or webp format. In addition, the package can convert images directly to various formats such as pdf or postscript. |
| License: | MIT + file LICENSE |
| URL: | https://docs.ropensci.org/rsvg/, https://github.com/ropensci/rsvg |
| BugReports: | https://github.com/ropensci/rsvg/issues |
| Suggests: | ggplot2, knitr, magick, rmarkdown, spelling, svglite, testthat (≥ 3.0.0), webp, png |
| VignetteBuilder: | knitr |
| Encoding: | UTF-8 |
| Language: | en-US |
| RoxygenNote: | 7.1.2 |
| SystemRequirements: | librsvg2 |
| Config/testthat/edition: | 3 |
| NeedsCompilation: | yes |
| Packaged: | 2024-09-19 17:11:15 UTC; jeroen |
| Author: | Jeroen Ooms  [aut,
cre],
Salim Brüggemann
[ctb] |
| Maintainer: | Jeroen Ooms <jeroenooms@gmail.com> |
| Repository: | CRAN |
| Date/Publication: | 2024-09-20 09:10:02 UTC |
librsvg version
Description
Print the version of the librsvg library
Usage
librsvg_version()
Render SVG into Bitmap
Description
Render svg image into a high quality bitmap. When both width and height
are NULL, the output resolution matches that of the input. When either width
or height is specified, the image is scaled proportionally. When both width
and height are specified, the image is stretched into the requested size.
Usage
rsvg(svg, width = NULL, height = NULL, css = NULL)
rsvg_raw(svg, width = NULL, height = NULL, css = NULL)
rsvg_nativeraster(svg, width = NULL, height = NULL, css = NULL)
rsvg_webp(svg, file = NULL, width = NULL, height = NULL, css = NULL)
rsvg_png(svg, file = NULL, width = NULL, height = NULL, css = NULL)
rsvg_pdf(svg, file = NULL, width = NULL, height = NULL, css = NULL)
rsvg_svg(svg, file = NULL, width = NULL, height = NULL, css = NULL)
rsvg_ps(svg, file = NULL, width = NULL, height = NULL, css = NULL)
rsvg_eps(svg, file = NULL, width = NULL, height = NULL, css = NULL)
Arguments
svg |
path/url to svg file or raw vector with svg data. Use charToRaw to convert an SVG string into raw data. |
width |
output width in pixels or |
height |
output height in pixels or |
css |
path/url to external css file or raw vector with css data. This requires your system has a recent version of librsvg. |
file |
path to output file or |
Examples
# create some svg
options(example.ask=FALSE)
tmp <- tempfile()
svglite::svglite(tmp, width = 10, height = 7)
ggplot2::qplot(mpg, wt, data = mtcars, colour = factor(cyl))
dev.off()
# convert directly into a vector or bitmap graphics format
rsvg_pdf(tmp, "out.pdf")
rsvg_png(tmp, "out.png")
rsvg_svg(tmp, "out.svg")
rsvg_ps(tmp, "out.ps")
rsvg_eps(tmp, "out.eps")
# render into raw bitmap array
bitmap <- rsvg(tmp, height = 1440)
dim(bitmap) # h*w*c
# render to native raster object
nr <- rsvg_nativeraster(tmp)
# grid::grid.raster(nr)
# read in your package of choice
magick::image_read(bitmap)
webp::write_webp(bitmap, "bitmap.webp", quality = 100)
# cleanup
unlink(c("out.*", "bitmap.webp"))