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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<!-- splitted from ./en/functions/image.xml, last change in rev 1.2 -->
<refentry id="function.imagepsbbox">
<refnamediv>
<refname>imagepsbbox</refname>
<refpurpose>
Give the bounding box of a text rectangle using PostScript Type1
fonts
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>array</type><methodname>imagepsbbox</methodname>
<methodparam><type>string</type><parameter>text</parameter></methodparam>
<methodparam><type>int</type><parameter>font</parameter></methodparam>
<methodparam><type>int</type><parameter>size</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>space</parameter></methodparam>
<methodparam><type>int</type><parameter>tightness</parameter></methodparam>
<methodparam><type>float</type><parameter>angle</parameter></methodparam>
</methodsynopsis>
<para>
<parameter>size</parameter> is expressed in pixels.
</para>
<para>
<parameter>space</parameter> allows you to change the default
value of a space in a font. This amount is added to the normal
value and can also be negative.
</para>
<para>
<parameter>tightness</parameter> allows you to control the amount
of white space between characters. This amount is added to the
normal character width and can also be negative.
</para>
<para>
<parameter>angle</parameter> is in degrees.
</para>
<para>
Parameters <parameter>space</parameter> and
<parameter>tightness</parameter> are expressed in character space
units, where 1 unit is 1/1000th of an em-square.
</para>
<para>
Parameters <parameter>space</parameter>,
<parameter>tightness</parameter>, and <parameter>angle</parameter>
are optional.
</para>
<para>
The bounding box is calculated using information available from
character metrics, and unfortunately tends to differ slightly
from the results achieved by actually rasterizing the text. If
the angle is 0 degrees, you can expect the text to need 1 pixel
more to every direction.
</para>
¬e.config.t1lib;
<para>
This function returns an array containing the following elements:
<informaltable>
<tgroup cols="2">
<tbody>
<row>
<entry>0</entry>
<entry>lower left x-coordinate</entry>
</row>
<row>
<entry>1</entry>
<entry>lower left y-coordinate</entry>
</row>
<row>
<entry>2</entry>
<entry>upper right x-coordinate</entry>
</row>
<row>
<entry>3</entry>
<entry>upper right y-coordinate</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
<para>
See also <function>imagepstext</function>.
</para>
</refsect1>
</refentry>
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sgml-default-dtd-file:"../../../../manual.ced"
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