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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="imagickkernel.getmatrix" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<refnamediv>
<refname>ImagickKernel::getMatrix</refname>
<refpurpose>Get the 2d matrix of values used in this kernel</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<modifier>public</modifier> <type>array</type><methodname>ImagickKernel::getMatrix</methodname>
<void />
</methodsynopsis>
<para>
Get the 2d matrix of values used in this kernel. The elements are either
float for elements that are used or 'false' if the element should be skipped.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
&no.function.parameters;
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
A matrix (2d array) of the values that represent the kernel.
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title> <function>ImagickKernel::getMatrix</function></title>
<programlisting role="php">
<![CDATA[
<?php
function renderKernelTable($matrix) {
$output = "<table class='infoTable'>";
foreach ($matrix as $row) {
$output .= "<tr>";
foreach ($row as $cell) {
$output .= "<td style='text-align:left'>";
if ($cell === false) {
$output .= "false";
}
else {
$output .= round($cell, 3);
}
$output .= "</td>";
}
$output .= "</tr>";
}
$output .= "</table>";
return $output;
}
$output = "The built-in kernel name 'ring' with parameters of '2,3.5':<br/>";
$kernel = \ImagickKernel::fromBuiltIn(
\Imagick::KERNEL_RING,
"2,3.5"
);
$matrix = $kernel->getMatrix();
$output .= renderKernelTable($matrix);
echo $output;
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
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