grid.move.to.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>R: Move or Draw to a Specified Position</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.move.to {grid}"><tr><td>grid.move.to {grid}</td><td align="right">R Documentation</td></tr></table>
<h2>Move or Draw to a Specified Position</h2>
<h3>Description</h3>
<p>
Grid has the notion of a current location. These functions
sets that location.
</p>
<h3>Usage</h3>
<pre>
grid.move.to(x = 0, y = 0, default.units = "npc", name = NULL,
draw = TRUE, vp = NULL)
moveToGrob(x = 0, y = 0, default.units = "npc", name = NULL, vp = NULL)
grid.line.to(x = 1, y = 1, default.units = "npc",
arrow = NULL, name = NULL,
gp = gpar(), draw = TRUE, vp = NULL)
lineToGrob(x = 1, y = 1, default.units = "npc", arrow = NULL,
name = NULL, gp = gpar(), vp = NULL)
</pre>
<h3>Arguments</h3>
<table summary="R argblock">
<tr valign="top"><td><code>x</code></td>
<td>
A numeric value or a unit object specifying an x-value.</td></tr>
<tr valign="top"><td><code>y</code></td>
<td>
A numeric value or a unit object specifying a y-value.</td></tr>
<tr valign="top"><td><code>default.units</code></td>
<td>
A string indicating the default units to use
if <code>x</code> or <code>y</code> are only given as numeric values.</td></tr>
<tr valign="top"><td><code>arrow</code></td>
<td>
A list describing arrow heads to place at either end
of the line, as produced by the <code>arrow</code> function.</td></tr>
<tr valign="top"><td><code>name</code></td>
<td>
A character identifier. </td></tr>
<tr valign="top"><td><code>draw</code></td>
<td>
A logical value indicating whether graphics output
should be produced.</td></tr>
<tr valign="top"><td><code>gp</code></td>
<td>
An object of class <code>gpar</code>, typically the output
from a call to the function <code>gpar</code>. This is basically
a list of graphical parameter settings.</td></tr>
<tr valign="top"><td><code>vp</code></td>
<td>
A Grid viewport object (or NULL).</td></tr>
</table>
<h3>Details</h3>
<p>
Both functions create a move.to/line.to grob (a graphical object describing a
move-to/line-to), but only <code>grid.move.to/line.to()</code>
draws the move.to/line.to (and then only if <code>draw</code> is <code>TRUE</code>).
</p>
<h3>Value</h3>
<p>
A move.to/line.to grob.
<code>grid.move.to/line.to()</code> returns the value invisibly.</p>
<h3>Author(s)</h3>
<p>
Paul Murrell
</p>
<h3>See Also</h3>
<p>
<a href="Grid.html">Grid</a>,
<code><a href="viewport.html">viewport</a></code>,
<code><a href="arrow.html">arrow</a></code>
</p>
<h3>Examples</h3>
<pre>
grid.newpage()
grid.move.to(0.5, 0.5)
grid.line.to(1, 1)
grid.line.to(0.5, 0)
pushViewport(viewport(x=0, y=0, w=0.25, h=0.25, just=c("left", "bottom")))
grid.rect()
grid.grill()
grid.line.to(0.5, 0.5)
popViewport()
</pre>
<hr><div align="center">[Package <em>grid</em> version 2.5.1 <a href="00Index.html">Index]</a></div>
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