1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.6 $ -->
<refentry id="function.imagerotate">
<refnamediv>
<refname>imagerotate</refname>
<refpurpose>Rotate an image with a given angle</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>resource</type><methodname>imagerotate</methodname>
<methodparam><type>resource</type><parameter>src_im</parameter></methodparam>
<methodparam><type>float</type><parameter>angle</parameter></methodparam>
<methodparam><type>int</type><parameter>bgd_color</parameter></methodparam>
<methodparam choice="opt"><type>int</type><parameter>ignore_transparent</parameter></methodparam>
</methodsynopsis>
<para>
Rotates the <parameter>src_im</parameter> image using a given
<parameter>angle</parameter> in degrees. <parameter>bgd_color</parameter>
specifies the color of the uncovered zone after the rotation.
</para>
<para>
The center of rotation is the center of the image, and the rotated
image is scaled down so that the whole rotated image fits in the
destination image - the edges are not clipped.
</para>
<para>
If <parameter>ignore_transparent</parameter> is set and non-zero,
transparent colors are ignored (otherwise kept). This parameter was added
in PHP 5.1.
</para>
<para>
<example>
<title>Rotate an image 180 degrees</title>
<para>
This example rotates an image 180 degrees - upside down.
</para>
<programlisting role="php">
<![CDATA[
// File and rotation
$filename = 'test.jpg';
$degrees = 180;
// Content type
header('Content-type: image/jpeg');
// Load
$source = imagecreatefromjpeg($filename);
// Rotate
$rotate = imagerotate($source, $degrees, 0);
// Output
imagejpeg($rotate);
]]>
</programlisting>
</example>
</para>
¬e.bundled.gd;
</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:"../../../../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
-->
|
