mirror of
https://github.com/sigmasternchen/php-doc-en
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a5750a8f03
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@161074 c90b9560-bf6c-de11-be94-00142212c4b1
115 lines
4.4 KiB
XML
115 lines
4.4 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/image.xml, last change in rev 1.36 -->
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<refentry id="function.imagefilledarc">
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<refnamediv>
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<refname>imagefilledarc</refname>
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<refpurpose>Draw a partial ellipse and fill it</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<methodsynopsis>
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<type>bool</type><methodname>imagefilledarc</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>w</parameter></methodparam>
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<methodparam><type>int</type><parameter>h</parameter></methodparam>
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<methodparam><type>int</type><parameter>s</parameter></methodparam>
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<methodparam><type>int</type><parameter>e</parameter></methodparam>
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<methodparam><type>int</type><parameter>color</parameter></methodparam>
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<methodparam><type>int</type><parameter>style</parameter></methodparam>
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</methodsynopsis>
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<para>
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<function>imagefilledarc</function> draws a partial ellipse centered at
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<parameter>cx</parameter>, <parameter>cy</parameter> (top left is
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0, 0) in the image represented by <parameter>image</parameter>.
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&return.success;
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<parameter>W</parameter>
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and <parameter>h</parameter> specifies the ellipse's width and
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height respectively while the start and end points are specified
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in degrees indicated by the <parameter>s</parameter> and
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<parameter>e</parameter> arguments.
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<parameter>style</parameter> is a bitwise OR of the following possibilities:
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<orderedlist>
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<listitem><simpara><constant>IMG_ARC_PIE</constant></simpara></listitem>
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<listitem><simpara><constant>IMG_ARC_CHORD</constant></simpara></listitem>
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<listitem><simpara><constant>IMG_ARC_NOFILL</constant></simpara></listitem>
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<listitem><simpara><constant>IMG_ARC_EDGED</constant></simpara></listitem>
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</orderedlist>
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<constant>IMG_ARC_PIE</constant> and <constant>IMG_ARC_CHORD</constant> are
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mutually exclusive; <constant>IMG_ARC_CHORD</constant> just
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connects the starting and ending angles with a straight line, while
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<constant>IMG_ARC_PIE</constant> produces a rounded edge.
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<constant>IMG_ARC_NOFILL</constant> indicates that the arc
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or chord should be outlined, not filled. <constant>IMG_ARC_EDGED</constant>,
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used together with <constant>IMG_ARC_NOFILL</constant>, indicates that the
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beginning and ending angles should be connected to the center - this is a
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good way to outline (rather than fill) a 'pie slice'.
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</para>
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<para>
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<example>
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<title>Creating a 3D looking pie</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// this example is provided by poxy at klam dot is
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// create image
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$image = imagecreate(100, 100);
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// allocate some solors
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$white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
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$gray = imagecolorallocate($image, 0xC0, 0xC0, 0xC0);
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$darkgray = imagecolorallocate($image, 0x90, 0x90, 0x90);
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$navy = imagecolorallocate($image, 0x00, 0x00, 0x80);
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$darknavy = imagecolorallocate($image, 0x00, 0x00, 0x50);
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$red = imagecolorallocate($image, 0xFF, 0x00, 0x00);
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$darkred = imagecolorallocate($image, 0x90, 0x00, 0x00);
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// make the 3D effect
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for ($i = 60; $i > 50; $i--) {
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imagefilledarc($image, 50, $i, 100, 50, 0, 45, $darknavy, IMG_ARC_PIE);
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imagefilledarc($image, 50, $i, 100, 50, 45, 75 , $darkgray, IMG_ARC_PIE);
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imagefilledarc($image, 50, $i, 100, 50, 75, 360 , $darkred, IMG_ARC_PIE);
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}
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imagefilledarc($image, 50, 50, 100, 50, 0, 45, $navy, IMG_ARC_PIE);
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imagefilledarc($image, 50, 50, 100, 50, 45, 75 , $gray, IMG_ARC_PIE);
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imagefilledarc($image, 50, 50, 100, 50, 75, 360 , $red, IMG_ARC_PIE);
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// flush image
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header('Content-type: image/png');
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imagepng($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>
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</para>
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¬e.gd.2;
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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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