construct.xml

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="imagickpixel.construct">
 <refnamediv>
  <refname>ImagickPixel::__construct</refname>
  <refpurpose>ImagickPixel のコンストラクタ</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <modifier>public</modifier> <methodname>ImagickPixel::__construct</methodname>
   <methodparam choice="opt"><type>string</type><parameter>color</parameter></methodparam>
  </methodsynopsis>
  &warn.undocumented.func;
  <para>
   ImagickPixel オブジェクトを作成します。color を指定した場合は、
   オブジェクトを作成した後で色を初期化してから返します。
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>color</parameter></term>
     <listitem>
      <para>
       このオブジェクトの初期化に使用する色を表すオプションの文字列。
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>

 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   成功した場合に ImagickPixel オブジェクトを返します。
   失敗した場合に ImagickPixelException をスローします。
  </para>
 </refsect1>



 <refsect1 role="examples">
  &reftitle.examples;
  <para>
    <example>
      <title> <function>ImagickPixel::construct</function></title>
      <programlisting role="php">
      <![CDATA[
<?php
function construct() {

    $columns = 4;
    
    $exampleColors = array(
        "rgba(100%, 0%, 0%, 0.5)",
        "hsb(33.3333%, 100%,  75%)", // medium green
        "hsl(120, 255,   191.25)", //medium green
        "graya(50%, 0.5)", //  semi-transparent mid gray
        "LightCoral", "none", //"cmyk(0.9, 0.48, 0.83, 0.50)",
        "#f00", //  #rgb
        "#ff0000", //  #rrggbb
        "#ff0000ff", //  #rrggbbaa
        "#ffff00000000", //  #rrrrggggbbbb
        "#ffff00000000ffff", //  #rrrrggggbbbbaaaa
        "rgb(255, 0, 0)", //  an integer in the range 0—255 for each component
        "rgb(100.0%, 0.0%, 0.0%)", //  a float in the range 0—100% for each component
        "rgb(255, 0, 0)", //  range 0 - 255
        "rgba(255, 0, 0, 1.0)", //  the same, with an explicit alpha value
        "rgb(100%, 0%, 0%)", //  range 0.0% - 100.0%
        "rgba(100%, 0%, 0%, 1.0)", //  the same, with an explicit alpha value
    );

    $draw = new \ImagickDraw();
    $count = 0;
    $black = new \ImagickPixel('rgb(0, 0, 0)');

    foreach ($exampleColors as $exampleColor) {
        $color = new \ImagickPixel($exampleColor);

        $draw->setstrokewidth(1.0);
        $draw->setStrokeColor($black);
        $draw->setFillColor($color);
        $offsetX = ($count % $columns) * 50 + 5;
        $offsetY = intval($count / $columns) * 50 + 5;
        $draw->rectangle(0 + $offsetX, 0 + $offsetY, 40 + $offsetX, 40 + $offsetY);
        $count++;
    }

    $image = new \Imagick();
    $image->newImage(350, 350, "blue");
    $image->setImageFormat("png");
    $image->drawImage($draw);
    header("Content-Type: image/png");
    echo $image->getImageBlob();
}

?>
]]>
      </programlisting>
    </example>
  </para>
 </refsect1>

</refentry>

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