php-doc-en/reference/image/functions/imageaffinematrixconcat.xml
2022-04-05 11:15:46 +01:00

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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.imageaffinematrixconcat" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>imageaffinematrixconcat</refname>
<refpurpose>Concatenate two affine transformation matrices</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type class="union"><type>array</type><type>false</type></type><methodname>imageaffinematrixconcat</methodname>
<methodparam><type>array</type><parameter>matrix1</parameter></methodparam>
<methodparam><type>array</type><parameter>matrix2</parameter></methodparam>
</methodsynopsis>
<para>
Returns the concatenation of two affine transformation matrices,
what is useful if multiple transformations should be applied to the same
image in one go.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<variablelist>
<varlistentry>
<term><parameter>matrix1</parameter></term>
<listitem>
<para>
An affine transformation matrix (an array with keys
<literal>0</literal> to <literal>5</literal> and float values).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>matrix2</parameter></term>
<listitem>
<para>
An affine transformation matrix (an array with keys
<literal>0</literal> to <literal>5</literal> and float values).
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
An affine transformation matrix (an array with keys
<literal>0</literal> to <literal>5</literal> and float values)
&return.falseforfailure;.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title><function>imageaffinematrixconcat</function> example</title>
<programlisting role="php">
<![CDATA[
<?php
$m1 = imageaffinematrixget(IMG_AFFINE_TRANSLATE, array('x' => 2, 'y' => 3));
$m2 = imageaffinematrixget(IMG_AFFINE_SCALE, array('x' => 4, 'y' => 5));
$matrix = imageaffinematrixconcat($m1, $m2);
print_r($matrix);
?>
]]>
</programlisting>
&example.outputs;
<screen>
<![CDATA[
Array
(
[0] => 4
[1] => 0
[2] => 0
[3] => 5
[4] => 8
[5] => 15
)
]]>
</screen>
</example>
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<simplelist>
<member><function>imageaffine</function></member>
<member><function>imageaffinematrixget</function></member>
</simplelist>
</refsect1>
</refentry>
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