mirror of
https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@297028 c90b9560-bf6c-de11-be94-00142212c4b1
154 lines
3.7 KiB
XML
154 lines
3.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.imagepolygon" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>imagepolygon</refname>
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<refpurpose>Draws a polygon</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>bool</type><methodname>imagepolygon</methodname>
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<methodparam><type>resource</type><parameter>image</parameter></methodparam>
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<methodparam><type>array</type><parameter>points</parameter></methodparam>
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<methodparam><type>int</type><parameter>num_points</parameter></methodparam>
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<methodparam><type>int</type><parameter>color</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>imagepolygon</function> creates a polygon in the given
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<parameter>image</parameter>.
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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>points</parameter></term>
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<listitem>
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<para>
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An array containing the polygon's vertices, e.g.:
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<informaltable>
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<tgroup cols="2">
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<tbody>
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<row>
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<entry>points[0]</entry>
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<entry>= x0</entry>
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</row>
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<row>
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<entry>points[1]</entry>
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<entry>= y0</entry>
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</row>
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<row>
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<entry>points[2]</entry>
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<entry>= x1</entry>
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</row>
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<row>
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<entry>points[3]</entry>
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<entry>= y1</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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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>num_points</parameter></term>
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<listitem>
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<para>
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Total number of points (vertices).
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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>color</parameter></term>
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<listitem>
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<para>
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A color identifier created with
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<function>imagecolorallocate</function>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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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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&return.success;
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title><function>imagepolygon</function> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Create a blank image
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$image = imagecreatetruecolor(400, 300);
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// Allocate a color for the polygon
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$col_poly = imagecolorallocate($image, 255, 255, 255);
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// Draw the polygon
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imagepolygon($image, array(
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0, 0,
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100, 200,
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300, 200
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),
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3,
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$col_poly);
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// Output the picture to the browser
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header('Content-type: image/png');
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imagepng($image);
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imagedestroy($image);
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?>
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]]>
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</programlisting>
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&example.outputs.similar;
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<mediaobject>
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<alt>Output of example : imagepolygon()</alt>
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<imageobject>
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<imagedata fileref="en/reference/image/figures/imagepolygon.png"/>
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</imageobject>
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</mediaobject>
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</example>
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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>imagecreate</function></member>
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<member><function>imagecreatetruecolor</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:"~/.phpdoc/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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