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<refentry xml:id="function.imagesetbrush" xmlns="http://docbook.org/ns/docbook">

<refnamediv>

<refname>imagesetbrush</refname>

<refpurpose>为线条设置笔刷图像</refpurpose>

</refnamediv>

<refsect1 role="description">

&reftitle.description;

<methodsynopsis>

<type>true</type><methodname>imagesetbrush</methodname>

<methodparam><type>GdImage</type><parameter>image</parameter></methodparam>

<methodparam><type>GdImage</type><parameter>brush</parameter></methodparam>

</methodsynopsis>

<para>

当用特殊的颜色 <literal>IMG_COLOR_BRUSHED</literal> 或 <literal>IMG_COLOR_STYLEDBRUSHED</literal>

绘制时，<function>imagesetbrush</function> 通过所有的线条函数设置要使用的笔刷图像。【注：使用笔刷图像，所画的线是由

<parameter>brush</parameter> 所代表的图像构成的。请参考并尝试运行

<function>imagesetstyle</function> 中的例子以帮助理解。】

</para>

<caution>

<para>

笔刷完成后不需要采取什么特殊动作，但如果要销毁笔刷图像（或让 PHP 销毁），不能使用 <constant>IMG_COLOR_BRUSHED</constant>

或 <constant>IMG_COLOR_STYLEDBRUSHED</constant> 颜色，除非设置了新的笔刷图像。

</para>

</caution>

</refsect1>

<refsect1 role="parameters">

&reftitle.parameters;

<para>

<variablelist>

&gd.image.description;

<varlistentry>

<term><parameter>brush</parameter></term>

<listitem>

<para>

图像对象。

</para>

</listitem>

</varlistentry>

</variablelist>

</para>

</refsect1>

<refsect1 role="returnvalues">

&reftitle.returnvalues;

<para>

&return.true.always;

</para>

</refsect1>

<refsect1 role="changelog">

&reftitle.changelog;

<informaltable>

<tgroup cols="2">

<thead>

<row>

<entry>&Version;</entry>

<entry>&Description;</entry>

</row>

</thead>

<tbody>

<row>

<entry>8.0.0</entry>

<entry>

<parameter>image</parameter> 和 <parameter>brush</parameter> 现在需要

<classname>GdImage</classname> 实例，之前需要 <type>resource</type>。

</entry>

</row>

</tbody>

</tgroup>

</informaltable>

</refsect1>

<refsect1 role="examples">

&reftitle.examples;

<para>

<example>

<title><function>imagesetbrush</function> 示例</title>

<programlisting role="php">

<![CDATA[

<?php

// 加载迷你 php logo

$php = imagecreatefrompng('./php.png');

// 创建主图像 100x100

$im = imagecreatetruecolor(100, 100);

// 用白色填充背景

$white = imagecolorallocate($im, 255, 255, 255);

imagefilledrectangle($im, 0, 0, 299, 99, $white);

// 设置画笔

imagesetbrush($im, $php);

// 画几支画笔，每支都相互重叠

imageline($im, 50, 50, 50, 60, IMG_COLOR_BRUSHED);

// 输出图像到浏览器

header('Content-type: image/png');

imagepng($im);

?>

]]>

</programlisting>

&example.outputs.similar;

<mediaobject>

<alt>Output of example : imagesetbrush()</alt>

<imageobject>

<imagedata fileref="en/reference/image/figures/imagesetbrush.png"/>

</imageobject>

</mediaobject>

</example>

</para>

</refsect1>

</refentry>

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