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(PECL imagick 2.0.0)
Imagick::rotateImage — Rotates an image
$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.
background
The background color
degrees
Rotation angle, in degrees. The rotation angle is interpreted as the number of degrees to rotate the image clockwise.
成功时返回 TRUE
。
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. |
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 ();
}
?>
[#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();
?>