mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-28 23:08:55 +00:00
af4410a7e1
still using this, after discussion on the phpdoc list. From now on, manual.ced will need to be found at ~/.phpdoc/manual.ced. git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@288721 c90b9560-bf6c-de11-be94-00142212c4b1
175 lines
4.5 KiB
XML
175 lines
4.5 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="function.imagearc" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>imagearc</refname>
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<refpurpose>Draws an arc</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>imagearc</methodname>
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<methodparam><type>resource</type><parameter>image</parameter></methodparam>
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<methodparam><type>int</type><parameter>cx</parameter></methodparam>
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<methodparam><type>int</type><parameter>cy</parameter></methodparam>
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<methodparam><type>int</type><parameter>width</parameter></methodparam>
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<methodparam><type>int</type><parameter>height</parameter></methodparam>
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<methodparam><type>int</type><parameter>start</parameter></methodparam>
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<methodparam><type>int</type><parameter>end</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>imagearc</function> draws an arc of circle centered at the given
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coordinates.
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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>cx</parameter></term>
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<listitem>
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<para>
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x-coordinate of the center.
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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>cy</parameter></term>
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<listitem>
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<para>
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y-coordinate of the center.
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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>width</parameter></term>
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<listitem>
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<para>
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The arc width.
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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>height</parameter></term>
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<listitem>
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<para>
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The arc height.
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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>start</parameter></term>
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<listitem>
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<para>
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The arc start angle, in degrees.
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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>end</parameter></term>
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<listitem>
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<para>
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The arc end angle, in degrees.
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0° is located at the three-o'clock position, and the arc is drawn
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clockwise.
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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>Drawing a circle with <function>imagearc</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// create a 200*200 image
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$img = imagecreatetruecolor(200, 200);
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// allocate some colors
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$white = imagecolorallocate($img, 255, 255, 255);
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$red = imagecolorallocate($img, 255, 0, 0);
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$green = imagecolorallocate($img, 0, 255, 0);
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$blue = imagecolorallocate($img, 0, 0, 255);
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// draw the head
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imagearc($img, 100, 100, 200, 200, 0, 360, $white);
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// mouth
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imagearc($img, 100, 100, 150, 150, 25, 155, $red);
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// left and then the right eye
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imagearc($img, 60, 75, 50, 50, 0, 360, $green);
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imagearc($img, 140, 75, 50, 50, 0, 360, $blue);
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// output image in the browser
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header("Content-type: image/png");
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imagepng($img);
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// free memory
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imagedestroy($img);
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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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<imageobject>
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<imagedata fileref="en/reference/image/figures/imagearc.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>imagefilledarc</function></member>
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<member><function>imageellipse</function></member>
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<member><function>imagefilledellipse</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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