0th

Percentile

##### Add a Grid Graphical Object

Add a grob to a gTree or a descendant of a gTree.

Keywords
dplot
##### Usage
grid.add(gPath, child, strict = FALSE, grep = FALSE, global = FALSE, allDevices = FALSE, redraw = TRUE)
addGrob(gTree, child, gPath = NULL, strict = FALSE, grep = FALSE, global = FALSE, warn = TRUE)
setChildren(x, children)
##### Arguments
gTree, x
A gTree object.
gPath
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.

grob, getGrob, addGrob, removeGrob.