A gPath object. For grid.add this
specifies a gTree on the display list. For addGrob this
specifies a descendant of the specified gTree.
child
A grob object.
children
A gList object.
strict
A boolean indicating whether the gPath must be
matched exactly.
grep
A boolean indicating whether the gPath should
be treated as a regular expression. Values are recycled across
elements of the gPath (e.g., c(TRUE, FALSE) means
that every odd element of the gPath will be treated as
a regular expression).
global
A boolean indicating whether the function should affect
just the first match of the gPath, or whether all matches
should be affected.
warn
A logical to indicate whether failing to find the
specified gPath should trigger an error.
allDevices
A boolean indicating whether all open devices
should
be searched for matches, or just the current device.
NOT YET IMPLEMENTED.
redraw
A logical value to indicate whether to redraw the grob.
Details
addGrob copies the specified grob and returns a modified
grob.
grid.add destructively modifies a grob on the display list.
If redraw
is TRUE it then redraws everything to reflect the change.
setChildren is a basic function for setting all children
of a gTree at once (instead of repeated calls to addGrob).
Value
addGrob returns a grob object; grid.add returns NULL.