grid.set(gPath, newGrob, strict = FALSE, grep = FALSE,
redraw = TRUE)setGrob(gTree, gPath, newGrob, strict = FALSE, grep = FALSE)
grid.set
this
specifies a grob on the display list. For setGrob
this
specifies a descendant of the specified gTree. 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).
setGrob
returns a grob object; grid.set
returns NULL
.setGrob
copies the specified grob and returns a modified
grob. grid.set
destructively replaces a grob on the display list.
If redraw
is TRUE
it then redraws everything to reflect the change. These functions should not normally be called by the user.grid.grob
.