note 40077 rejected from function.imagerotate by nlopess
| From: | nlopess@php.net | Date: | Fri, 20 Feb 2004 22:09:59 +0000 |
| Subject: | note 40077 rejected from function.imagerotate by nlopess | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-65466@lists.php.net to get a copy of this message | ||
Note Submitter: delobelle@blueyonder.co.uk
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Feature?
Rotated images seem to forget the alpha channel of the original image. What's the logic in
that?
For instance if img.png is a square image which is transparent then
<?php
$img = imagecreatefrompng("img.png");
$anycolor = // whatever color you like
$rot = imagerotate($img, 90, $anycolor);
imagesavealpha($rot, true);
imagepng($rot);
?>
outputs a black square.
So is there a way to rotate an image without losing alpha transparency, and without using
transparent colors of course?