Imagick::rotateImage
(PECL imagick 2.0.0)
Imagick::rotateImage — Rotates an image
说明
$background
, float $degrees
)Rotates an image the specified number of degrees. Empty triangles left over from rotating the image are filled with the background color.
参数
-
background -
The background color
-
degrees -
Rotation angle, in degrees. The rotation angle is interpreted as the number of degrees to rotate the image clockwise.
返回值
成功时返回 TRUE 。
更新日志
| 版本 | 说明 |
|---|---|
| 2.1.0 | Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object. |
范例
Example #1 Imagick::rotateImage()
<?php
function rotateImage ( $imagePath , $angle , $color ) {
$imagick = new \ Imagick ( realpath ( $imagePath ));
$imagick -> rotateimage ( $color , $angle );
header ( "Content-Type: image/jpg" );
echo $imagick -> getImageBlob ();
}
?> 用户评论:
[#1] AlexG [2012-10-01 15:56:52]
Transparent
<?php $im->rotateImage(new ImagickPixel('#00000000'), 75); ?>
[#2] Baptiste VALTHIER [2011-03-29 13:05:50]
You can rotate an jpg image by -13.55?? into a transparent png image with :
<?php
$imagick = new Imagick();
$imagick->readImage('my.jpg');
$imagick->rotateImage(new ImagickPixel('none'), -13.55);
$imagick->writeImage('my_rotated.png');
$imagick->clear();
$imagick->destroy();
?>
[#3] wjsams at gmail dot com [2008-11-22 21:49:26]
If you want to rotate an image by a certain degree you can do this:
<?php
header('content-type: image/jpeg');
$imagick = new Imagick();
$imagick->readImage('castle.jpg');
$imagick->rotateImage(new ImagickPixel(), 90);
print $imagick->getImage();
?>