rgl.useNULL {rgl} | R Documentation |
Report default use of null device
Description
This function checks the "rgl.useNULL"
option if present, or the
RGL_USE_NULL environment variable if it is not. If the value is
TRUE
or a string which matches “yes” or “true”
in a case-insensitive test, TRUE
is returned.
Usage
rgl.useNULL()
Value
A logical value indicating the current default for use of the null device.
Note
This function is checked by the initialization code when the rgl package
is loaded. Thus if you want to run RGL on a system where there is no
graphics support, you should run options(rgl.useNULL = TRUE)
or set the environment variable RGL_USE_NULL=TRUE
*before*
calling library(rgl)
(or other code that
loads rgl), and it will not fail in its attempt at initialization.
Author(s)
Duncan Murdoch
See Also
Examples
rgl.useNULL()
[Package rgl version 1.3.1 Index]