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 systemrgl.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.
whether to open the “null” device
device ID
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.
r3d,
rgl.init,
rgl.clear,
rgl.pop,
rgl.viewpoint,
rgl.light,
rgl.bg,
rgl.bbox,
rgl.points,
rgl.lines,
rgl.triangles,
rgl.quads,
rgl.texts,
rgl.surface,
rgl.spheres,
rgl.sprites,
rgl.snapshot,
rgl.useNULL