mirror of
https://github.com/sigmasternchen/php-doc-en
synced 2025-03-20 02:48:56 +00:00
af4410a7e1
still using this, after discussion on the phpdoc list. From now on, manual.ced will need to be found at ~/.phpdoc/manual.ced. git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@288721 c90b9560-bf6c-de11-be94-00142212c4b1
151 lines
3.9 KiB
XML
151 lines
3.9 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
|
|
<!-- $Revision$ -->
|
|
<!-- splitted from ./en/functions/ps.xml, last change in rev 1.12 -->
|
|
<refentry xml:id="function.ps-rotate" xmlns="http://docbook.org/ns/docbook">
|
|
<refnamediv>
|
|
<refname>ps_rotate</refname>
|
|
<refpurpose>Sets rotation factor</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsect1 role="description">
|
|
&reftitle.description;
|
|
<methodsynopsis>
|
|
<type>bool</type><methodname>ps_rotate</methodname>
|
|
<methodparam><type>resource</type><parameter>psdoc</parameter></methodparam>
|
|
<methodparam><type>float</type><parameter>rot</parameter></methodparam>
|
|
</methodsynopsis>
|
|
<para>
|
|
Sets the rotation of the coordinate system.
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="parameters">
|
|
&reftitle.parameters;
|
|
<para>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><parameter>psdoc</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Resource identifier of the postscript file
|
|
as returned by <function>ps_new</function>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>rot</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Angle of rotation in degree.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="returnvalues">
|
|
&reftitle.returnvalues;
|
|
<para>
|
|
&return.success;
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="examples">
|
|
&reftitle.examples;
|
|
<para>
|
|
<example>
|
|
<title>Rotation of the coordinate system</title>
|
|
<programlisting role="php">
|
|
<![CDATA[
|
|
<?php
|
|
function rectangle($ps) {
|
|
ps_moveto($ps, 0, 0);
|
|
ps_lineto($ps, 0, 50);
|
|
ps_lineto($ps, 50, 50);
|
|
ps_lineto($ps, 50, 0);
|
|
ps_lineto($ps, 0, 0);
|
|
ps_stroke($ps);
|
|
}
|
|
|
|
$ps = ps_new();
|
|
if (!ps_open_file($ps, "rotation.ps")) {
|
|
print "Cannot open PostScript file\n";
|
|
exit;
|
|
}
|
|
|
|
ps_set_info($ps, "Creator", "rotation.php");
|
|
ps_set_info($ps, "Author", "Uwe Steinmann");
|
|
ps_set_info($ps, "Title", "Rotation example");
|
|
ps_set_info($ps, "BoundingBox", "0 0 596 842");
|
|
|
|
$psfont = ps_findfont($ps, "Helvetica", "", 0);
|
|
|
|
ps_begin_page($ps, 596, 842);
|
|
ps_set_text_pos($ps, 100, 100);
|
|
ps_save($ps);
|
|
ps_translate($ps, 100, 100);
|
|
ps_rotate($ps, 45);
|
|
rectangle($ps);
|
|
ps_restore($ps);
|
|
ps_setfont($ps, $psfont, 8.0);
|
|
ps_show($ps, "Text without rotation");
|
|
ps_end_page($ps);
|
|
|
|
ps_delete($ps);
|
|
?>
|
|
]]>
|
|
</programlisting>
|
|
<para>
|
|
The above example illustrates a very common way of rotating a
|
|
graphic (in this case just a rectangle) by simply rotating the
|
|
coordinate system. Since the graphic's coordinate system assumes
|
|
(0,0) to be the origin, the page coordinate system is also translated
|
|
to place the graphics not on the edge of the page. Pay attention
|
|
to the order of <function>ps_translate</function> and
|
|
<function>ps_rotate</function>. In the above case the rectancle is
|
|
rotated around the point (100, 100) in the untranslated coordinate
|
|
system. Switching the two statements has a completely
|
|
different result.
|
|
</para>
|
|
<para>
|
|
In order to output the following text at the original position, all
|
|
modifications of the coordinate system are encapsulated in
|
|
<function>ps_save</function> and <function>ps_restore</function>.
|
|
</para>
|
|
</example>
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 role="seealso">
|
|
&reftitle.seealso;
|
|
<para>
|
|
<simplelist>
|
|
<member><function>ps_scale</function></member>
|
|
<member><function>ps_translate</function></member>
|
|
</simplelist>
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|
|
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
vim600: syn=xml fen fdm=syntax fdl=2 si
|
|
vim: et tw=78 syn=sgml
|
|
vi: ts=1 sw=1
|
|
-->
|
|
|