Imagick
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Imagick::rotateImage

(PECL imagick 2.0.0)

Imagick::rotateImage — Rotates an image

说明

bool Imagick::rotateImage ( mixed $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

The number of degrees to rotate the image

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.

Imagick
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PHP手册 - N: Rotates an image

用户评论:

Baptiste VALTHIER (29-Mar-2011 09:05)

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();
?>

wjsams at gmail dot com (23-Nov-2008 05:49)

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();
?>