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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.14 $ -->
<refentry xml:id="function.imagefilledarc" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>imagefilledarc</refname>
<refpurpose>Draw a partial arc and fill it</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>imagefilledarc</methodname>
<methodparam><type>resource</type><parameter>image</parameter></methodparam>
<methodparam><type>int</type><parameter>cx</parameter></methodparam>
<methodparam><type>int</type><parameter>cy</parameter></methodparam>
<methodparam><type>int</type><parameter>width</parameter></methodparam>
<methodparam><type>int</type><parameter>height</parameter></methodparam>
<methodparam><type>int</type><parameter>start</parameter></methodparam>
<methodparam><type>int</type><parameter>end</parameter></methodparam>
<methodparam><type>int</type><parameter>color</parameter></methodparam>
<methodparam><type>int</type><parameter>style</parameter></methodparam>
</methodsynopsis>
<para>
Draws a partial arc centered at the specified coordinate in the
given <parameter>image</parameter>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
&gd.image.description;
<varlistentry>
<term><parameter>cx</parameter></term>
<listitem>
<para>
x-coordinate of the center.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>cy</parameter></term>
<listitem>
<para>
y-coordinate of the center.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>width</parameter></term>
<listitem>
<para>
The arc width.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>height</parameter></term>
<listitem>
<para>
The arc height.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>start</parameter></term>
<listitem>
<para>
The arc start angle, in degrees.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>end</parameter></term>
<listitem>
<para>
The arc end angle, in degrees.
0° is located at the three-o'clock position, and the arc is drawn
clockwise.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>color</parameter></term>
<listitem>
<para>
A color identifier created with
<function>imagecolorallocate</function>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>style</parameter></term>
<listitem>
<para>
A bitwise OR of the following possibilities:
<orderedlist>
<listitem><simpara><constant>IMG_ARC_PIE</constant></simpara></listitem>
<listitem><simpara><constant>IMG_ARC_CHORD</constant></simpara></listitem>
<listitem><simpara><constant>IMG_ARC_NOFILL</constant></simpara></listitem>
<listitem><simpara><constant>IMG_ARC_EDGED</constant></simpara></listitem>
</orderedlist>
<constant>IMG_ARC_PIE</constant> and <constant>IMG_ARC_CHORD</constant> are
mutually exclusive; <constant>IMG_ARC_CHORD</constant> just
connects the starting and ending angles with a straight line, while
<constant>IMG_ARC_PIE</constant> produces a rounded edge.
<constant>IMG_ARC_NOFILL</constant> indicates that the arc
or chord should be outlined, not filled. <constant>IMG_ARC_EDGED</constant>,
used together with <constant>IMG_ARC_NOFILL</constant>, indicates that the
beginning and ending angles should be connected to the center - this is a
good way to outline (rather than fill) a 'pie slice'.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Creating a 3D looking pie</title>
<programlisting role="php">
<![CDATA[
<?php
// create image
$image = imagecreatetruecolor(100, 100);
// allocate some solors
$white = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
$gray = imagecolorallocate($image, 0xC0, 0xC0, 0xC0);
$darkgray = imagecolorallocate($image, 0x90, 0x90, 0x90);
$navy = imagecolorallocate($image, 0x00, 0x00, 0x80);
$darknavy = imagecolorallocate($image, 0x00, 0x00, 0x50);
$red = imagecolorallocate($image, 0xFF, 0x00, 0x00);
$darkred = imagecolorallocate($image, 0x90, 0x00, 0x00);
// make the 3D effect
for ($i = 60; $i > 50; $i--) {
imagefilledarc($image, 50, $i, 100, 50, 0, 45, $darknavy, IMG_ARC_PIE);
imagefilledarc($image, 50, $i, 100, 50, 45, 75 , $darkgray, IMG_ARC_PIE);
imagefilledarc($image, 50, $i, 100, 50, 75, 360 , $darkred, IMG_ARC_PIE);
}
imagefilledarc($image, 50, 50, 100, 50, 0, 45, $navy, IMG_ARC_PIE);
imagefilledarc($image, 50, 50, 100, 50, 45, 75 , $gray, IMG_ARC_PIE);
imagefilledarc($image, 50, 50, 100, 50, 75, 360 , $red, IMG_ARC_PIE);
// flush image
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
?>
]]>
</programlisting>
&example.outputs.similar;
<mediaobject>
<imageobject>
<imagedata fileref="figures/image.imagefilledarc.png"/>
</imageobject>
</mediaobject>
</example>
</para>
</refsect1>
<refsect1 role="notes">
&reftitle.notes;
¬e.gd.2;
</refsect1>
</refentry>
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sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
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sgml-local-ecat-files:nil
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vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
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