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https://github.com/sigmasternchen/php-doc-en
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c030e2adf7
- All id attributes are now xml:id - Add docbook namespace to all root elements - Replace <ulink /> with <link xlink:href /> - Minor markup fixes here and there git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@238160 c90b9560-bf6c-de11-be94-00142212c4b1
101 lines
2.8 KiB
XML
101 lines
2.8 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<refentry xml:id="function.imagecolorclosest" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>imagecolorclosest</refname>
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<refpurpose>Get the index of the closest color to the specified color</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>int</type><methodname>imagecolorclosest</methodname>
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<methodparam><type>resource</type><parameter>image</parameter></methodparam>
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<methodparam><type>int</type><parameter>red</parameter></methodparam>
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<methodparam><type>int</type><parameter>green</parameter></methodparam>
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<methodparam><type>int</type><parameter>blue</parameter></methodparam>
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</methodsynopsis>
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<para>
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Returns the index of the color in the palette of the image which
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is "closest" to the specified <acronym>RGB</acronym> value.
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</para>
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<para>
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The "distance" between the desired color and each color in the
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palette is calculated as if the <acronym>RGB</acronym> values
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represented points in three-dimensional space.
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</para>
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<para>
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If you created the image from a file, only colors used in the image are
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resolved. Colors present only in the pallete are not resolved.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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&gd.image.description;
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<varlistentry>
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<term><parameter>red</parameter></term>
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<listitem>
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<para>
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Value of red component
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>green</parameter></term>
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<listitem>
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<para>
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Value of green component
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>blue</parameter></term>
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<listitem>
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<para>
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Value of blue component
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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The colors parameters are integers between 0 and 255 or hexadecimals
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between 0x00 and 0xFF.
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Returns the index of the closest color, in the palette of the image, to
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the specified one
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>imagecolorexact</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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