Low level window interface
3D real-time rendering system.
rgl.open(useNULL = rgl.useNULL()) # open new device rgl.close() # close current device rgl.cur() # returns active device ID rgl.dev.list() # returns all device IDs rgl.set(which, silent = FALSE) # set device as active rgl.quit() # shutdown RGL device system
useNULL |
whether to open the “null” device |
which |
device ID |
silent |
whether to suppress update of window titles |
The RGL device design is oriented towards the R device metaphor. If you send
scene management instructions, and there's no device open, it will be opened
automatically.
Opened devices automatically get the current device focus. The focus may be
changed by using rgl.set().
rgl.quit() shuts down the RGL subsystem and all open devices,
detaches the package including the shared library and additional system libraries.
The rgl.open() function attempts to open a new RGL window.
If the "rgl.antialias" option is set, it will be used to
select the requested antialiasing. (See open3d for
more description of antialiasing and an alternative way to set the
value.)
If useNULL is TRUE, RGL will use a “null”
device. This device records objects as they are plotted, but
displays nothing. It is intended for use with rglwidget
and similar functions.
If rgl.open() fails (e.g. because X windows is not running, or its
DISPLAY variable is not set properly), then you can retry the initialization
by calling rgl.init(). Do not do this when windows have
already been successfully opened: they will be orphaned, with no way to
remove them other than closing R. In fact, it's probably a good idea not to do this
at all: quitting R and restarting it is a better solution.
This package also includes a higher level interface which is described
in the r3d help topic. That interface is designed to act more like
classic 2D R graphics. We recommend that you avoid mixing
rgl.* and *3d calls.
rgl.open, rgl.close and rgl.set are called for their side effects
and return no useful value. Similarly rgl.quit is not designed
to return useful values; in fact, users shouldn't call it at all!
rgl.cur returns the currently active devices, or 0 if none is
active; rgl.dev.list returns a vector of all open devices. Both functions name
the items according to the type of device: null for a hidden null device,
wgl for a Windows device, and glX for an X windows device.
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