mirror of
https://github.com/sigmasternchen/php-doc-en
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18dc6d0d46
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@336315 c90b9560-bf6c-de11-be94-00142212c4b1
141 lines
3.7 KiB
XML
141 lines
3.7 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="imagickdraw.affine">
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<refnamediv>
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<refname>ImagickDraw::affine</refname>
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<refpurpose>Adjusts the current affine transformation matrix</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>ImagickDraw::affine</methodname>
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<methodparam><type>array</type><parameter>affine</parameter></methodparam>
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</methodsynopsis>
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&warn.undocumented.func;
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<para>
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Adjusts the current affine transformation matrix with the specified affine
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transformation matrix.
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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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<varlistentry>
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<term><parameter>affine</parameter></term>
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<listitem>
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<para>
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Affine matrix parameters
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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.void;
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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> <function>ImagickDraw::affine</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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function affine($strokeColor, $fillColor, $backgroundColor) {
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$draw = new \ImagickDraw();
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$draw->setStrokeWidth(1);
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$draw->setStrokeOpacity(1);
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$draw->setStrokeColor($strokeColor);
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$draw->setFillColor($fillColor);
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$draw->setStrokeWidth(2);
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$PI = 3.141592653589794;
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$angle = 60 * $PI / 360;
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//Scale the drawing co-ordinates.
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$affineScale = array("sx" => 1.75, "sy" => 1.75, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);
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//Shear the drawing co-ordinates.
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$affineShear = array("sx" => 1, "sy" => 1, "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0);
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//Rotate the drawing co-ordinates. The shear affine matrix
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//produces incorrectly scaled drawings.
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$affineRotate = array("sx" => cos($angle), "sy" => cos($angle), "rx" => sin($angle), "ry" => -sin($angle), "tx" => 0, "ty" => 0,);
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//Translate (offset) the drawing
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$affineTranslate = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 30, "ty" => 30);
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//The identiy affine matrix
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$affineIdentity = array("sx" => 1, "sy" => 1, "rx" => 0, "ry" => 0, "tx" => 0, "ty" => 0);
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$examples = [$affineScale, $affineShear, $affineRotate, $affineTranslate, $affineIdentity,];
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$count = 0;
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foreach ($examples as $example) {
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$draw->push();
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$draw->translate(($count % 2) * 250, intval($count / 2) * 250);
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$draw->translate(100, 100);
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$draw->affine($example);
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$draw->rectangle(-50, -50, 50, 50);
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$draw->pop();
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$count++;
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}
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//Create an image object which the draw commands can be rendered into
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$image = new \Imagick();
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$image->newImage(500, 750, $backgroundColor);
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$image->setImageFormat("png");
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//Render the draw commands in the ImagickDraw object
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//into the image.
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$image->drawImage($draw);
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//Send the image to the browser
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header("Content-Type: image/png");
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echo $image->getImageBlob();
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}
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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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</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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