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https://github.com/sigmasternchen/php-doc-en
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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@114903 c90b9560-bf6c-de11-be94-00142212c4b1
135 lines
4.9 KiB
XML
135 lines
4.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.4 $ -->
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<!-- splitted from ./en/functions/image.xml, last change in rev 1.2 -->
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<refentry id="function.imagepstext">
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<refnamediv>
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<refname>imagepstext</refname>
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<refpurpose>To draw a text string over an image using PostScript Type1 fonts</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>array</type><methodname>imagepstext</methodname>
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<methodparam><type>resource</type><parameter>image</parameter></methodparam>
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<methodparam><type>string</type><parameter>text</parameter></methodparam>
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<methodparam><type>int</type><parameter>font</parameter></methodparam>
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<methodparam><type>int</type><parameter>size</parameter></methodparam>
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<methodparam><type>int</type><parameter>foreground</parameter></methodparam>
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<methodparam><type>int</type><parameter>background</parameter></methodparam>
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<methodparam><type>int</type><parameter>x</parameter></methodparam>
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<methodparam><type>int</type><parameter>y</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>
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space
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</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>
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tightness
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</parameter></methodparam>
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<methodparam choice="opt"><type>float</type><parameter>
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angle
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</parameter></methodparam>
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<methodparam choice="opt"><type>int</type><parameter>
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antialias_steps
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</parameter></methodparam>
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</methodsynopsis>
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<para>
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<parameter>foreground</parameter> is the color in which the text
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will be painted. <parameter>Background</parameter> is the color
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to which the text will try to fade in with antialiasing. No
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pixels with the color <parameter>background</parameter> are
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actually painted, so the background image does not need to be of
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solid color.
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</para>
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<para>
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The coordinates given by <parameter>x</parameter>,
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<parameter>y</parameter> will define the origin (or reference
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point) of the first character (roughly the lower-left corner of
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the character). This is different from the
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<function>imagestring</function>, where <parameter>x</parameter>,
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<parameter>y</parameter> define the upper-right corner of the
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first character. Refer to PostScipt documentation about fonts and
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their measuring system if you have trouble understanding how this
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works.
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</para>
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<para>
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<parameter>space</parameter> allows you to change the default
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value of a space in a font. This amount is added to the normal
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value and can also be negative.
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</para>
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<para>
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<parameter>tightness</parameter> allows you to control the amount
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of white space between characters. This amount is added to the
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normal character width and can also be negative.
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</para>
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<para>
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<parameter>angle</parameter> is in degrees.
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</para>
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<para>
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<parameter>size</parameter> is expressed in pixels.
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</para>
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<para>
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<parameter>antialias_steps</parameter> allows you to control the
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number of colours used for antialiasing text. Allowed values are
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4 and 16. The higher value is recommended for text sizes lower
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than 20, where the effect in text quality is quite visible. With
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bigger sizes, use 4. It's less computationally intensive.
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</para>
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<para>
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Parameters <parameter>space</parameter> and
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<parameter>tightness</parameter> are expressed in character space
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units, where 1 unit is 1/1000th of an em-square.
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</para>
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<para>
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Parameters <parameter>space</parameter>,
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<parameter>tightness</parameter>, <parameter>angle</parameter>
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and <parameter>antialias</parameter> are optional.
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</para>
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<para>
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This function returns an array containing the following elements:
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<informaltable>
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<tgroup cols="2">
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<tbody>
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<row>
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<entry>0</entry>
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<entry>lower left x-coordinate</entry>
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</row>
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<row>
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<entry>1</entry>
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<entry>lower left y-coordinate</entry>
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</row>
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<row>
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<entry>2</entry>
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<entry>upper right x-coordinate</entry>
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</row>
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<row>
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<entry>3</entry>
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<entry>upper right y-coordinate</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable></para>
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<para>
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See also <function>imagepsbbox</function>.
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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:"../../../../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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