R

`grid.set` Set a Grid Graphical Object

Replace a grob or a descendant of a grob.

grid.set(gPath, newGrob, strict = FALSE, grep = FALSE,
         redraw = TRUE)

setGrob(gTree, gPath, newGrob, strict = FALSE, grep = FALSE)

`gTree`	A gTree object.
`gPath`	A gPath object. For `grid.set` this specifies a grob on the display list. For `setGrob` this specifies a descendant of the specified gTree.
`newGrob`	A grob 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).
`redraw`	A logical value to indicate whether to redraw the grob.

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.

setGrob returns a grob object; grid.set returns NULL.

Paul Murrell