imagefilledellipse.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
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<refentry xml:id="function.imagefilledellipse" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>imagefilledellipse</refname>
  <refpurpose>绘制椭圆并填充</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>imagefilledellipse</methodname>
   <methodparam><type>GdImage</type><parameter>image</parameter></methodparam>
   <methodparam><type>int</type><parameter>center_x</parameter></methodparam>
   <methodparam><type>int</type><parameter>center_y</parameter></methodparam>
   <methodparam><type>int</type><parameter>width</parameter></methodparam>
   <methodparam><type>int</type><parameter>height</parameter></methodparam>
   <methodparam><type>int</type><parameter>color</parameter></methodparam>
  </methodsynopsis>
  <para>
   在指定 <parameter>image</parameter> 上以指定坐标为中心绘制椭圆。
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    &gd.image.description;
    <varlistentry>
     <term><parameter>center_x</parameter></term>
     <listitem>
      <para>
       中央的 x 坐标。
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>center_y</parameter></term>
     <listitem>
      <para>
       中央的 y 坐标。
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>width</parameter></term>
     <listitem>
      <para>
       椭圆的宽度。
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>height</parameter></term>
     <listitem>
      <para>
       椭圆的高度。
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>color</parameter></term>
     <listitem>
      <para>
       填充颜色。&gd.identifier.color;
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     &gd.changelog.image-param;
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>imagefilledellipse</function> 示例</title>
    <programlisting role="php">
<![CDATA[
<?php

// create a blank image
$image = imagecreatetruecolor(400, 300);

// fill the background color
$bg = imagecolorallocate($image, 0, 0, 0);

// choose a color for the ellipse
$col_ellipse = imagecolorallocate($image, 255, 255, 255);

// draw the white ellipse
imagefilledellipse($image, 200, 150, 300, 200, $col_ellipse);

// output the picture
header("Content-type: image/png");
imagepng($image);

?>
]]>
    </programlisting>
    &example.outputs.similar;
    <mediaobject>
     <alt>例子输出： imagefilledellipse()</alt>
     <imageobject>
      <imagedata fileref="en/reference/image/figures/imagefilledellipse.png"/>
     </imageobject>
    </mediaobject>
   </example>
  </para>
 </refsect1>
 <refsect1 role="notes">
  &reftitle.notes;
  <note>
   <para>
    <function>imagefilledellipse</function> 忽略 <function>imagesetthickness</function>。
   </para>
  </note>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <simplelist>
   <member><function>imageellipse</function></member>
   <member><function>imagefilledarc</function></member>
  </simplelist>
 </refsect1>
</refentry>
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