grSoftVersion Report Versions of Graphics Software
Description
Report versions of third-party graphics software available on the current platform for R's graphics.
Usage
grSoftVersion()
Value
A named character vector containing at least the elements
cairo |
the version of cairographics in use, or |
cairoFT |
the FreeType/FontConfig versions if cairographics is using those libraries directly (not via pango); otherwise, |
pango |
the version of pango in use, or |
It may also contain the versions of third-party software used by the standard (on Windows), or X11-based (on Unix-alikes) bitmap devices:
libpng |
the version of |
jpeg |
the version of the JPEG headers used for compilation, or |
libtiff |
the version of |
It is conceivable but unlikely that the cairo-based bitmap devices will use different versions linked via cairographics, especially png(type = "cairo-png").
On macOS, if available, the Quartz-based devices will use the system versions of these libraries rather than those reported here.
Unless otherwise stated the reported version is that of the (possibly dynamically-linked) library in use at runtime.
Note that libjpeg-turbo as used on some Linux distributions reports its version as "6.2", the IJG version from which it forked.
See Also
extSoftVersion for versions of non-graphics software.
Examples
grSoftVersion()
Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.