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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>R: Set a Grid Graphical Object</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" type="text/css" href="../../R.css">
</head><body>
<table width="100%" summary="page for grid.set {grid}"><tr><td>grid.set {grid}</td><td align="right">R Documentation</td></tr></table>
<h2>Set a Grid Graphical Object</h2>
<h3>Description</h3>
<p>
Replace a grob or a descendant of a grob.
</p>
<h3>Usage</h3>
<pre>
grid.set(gPath, newGrob, strict = FALSE, grep = FALSE,
redraw = TRUE)
setGrob(gTree, gPath, newGrob, strict = FALSE, grep = FALSE)
</pre>
<h3>Arguments</h3>
<table summary="R argblock">
<tr valign="top"><td><code>gTree</code></td>
<td>
A gTree object.</td></tr>
<tr valign="top"><td><code>gPath</code></td>
<td>
A gPath object. For <code>grid.set</code> this
specifyies a grob on the display list. For <code>setGrob</code> this
specifies a descendant of the specified gTree. </td></tr>
<tr valign="top"><td><code>newGrob</code></td>
<td>
A grob object. </td></tr>
<tr valign="top"><td><code>strict</code></td>
<td>
A boolean indicating whether the gPath must be
matched exactly. </td></tr>
<tr valign="top"><td><code>grep</code></td>
<td>
A boolean indicating whether the <code>gPath</code> should
be treated as a regular expression. Values are recycled across
elements of the <code>gPath</code> (e.g., <code>c(TRUE, FALSE)</code> means
that every odd element of the <code>gPath</code> will be treated as
a regular expression).
</td></tr>
<tr valign="top"><td><code>redraw</code></td>
<td>
A logical value to indicate whether to redraw the grob. </td></tr>
</table>
<h3>Details</h3>
<p>
<code>setGrob</code> copies the specified grob and returns a modified
grob.
</p>
<p>
<code>grid.set</code> destructively replaces a grob on the display list.
If <code>redraw</code>
is <code>TRUE</code> it then redraws everything to reflect the change.
</p>
<p>
These functions should not normally be called by the user.
</p>
<h3>Value</h3>
<p>
<code>setGrob</code> returns a grob object; <code>grid.set</code> returns <code>NULL</code>.</p>
<h3>Author(s)</h3>
<p>
Paul Murrell
</p>
<h3>See Also</h3>
<p>
<code><a href="grid.grob.html">grid.grob</a></code>.
</p>
<hr><div align="center">[Package <em>grid</em> version 2.5.1 <a href="00Index.html">Index]</a></div>
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