note 85992 added to function.imagecopy
| From: | xafford at osu1 dot php dot net | Date: | Sat, 27 Sep 2008 12:53:57 +0000 |
| Subject: | note 85992 added to function.imagecopy | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-144835@lists.php.net to get a copy of this message | ||
concerning the previous post of Borszczuk and the function to mirror images:
There´s a way better (and faster) method for this task with imagecopyresampled.
<?php
define ( 'IMAGE_FLIP_HORIZONTAL', 1 );
define ( 'IMAGE_FLIP_VERTICAL', 2 );
define ( 'IMAGE_FLIP_BOTH', 3 );
function ImageFlip ( $imgsrc, $mode )
{
$width = imagesx ( $imgsrc );
$height = imagesy ( $imgsrc );
$src_x = 0;
$src_y = 0;
$src_width = $width;
$src_height = $height;
switch ( (int) $mode )
{
case IMAGE_FLIP_HORIZONTAL:
$src_y = $height;
$src_height = -$height;
break;
case IMAGE_FLIP_VERTICAL:
$src_x = $width;
$src_width = -$width;
break;
case IMAGE_FLIP_BOTH:
$src_x = $width;
$src_y = $height;
$src_width = -$width;
$src_height = -$height;
break;
default:
return $imgsrc;
}
$imgdest = imagecreatetruecolor ( $width, $height );
if ( imagecopyresampled ( $imgdest, $imgsrc, 0, 0, $src_x, $src_y, $width, $height, $src_width,
$src_height ) )
{
return $imgdest;
}
return $imgsrc;
}
?>
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Server IP: 69.147.83.197
Probable Submitter: 91.45.56.43
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Manual Page -- http://www.php.net/manual/en/function.imagecopy.php
Edit -- https://master.php.net/note/edit/85992
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Del: non-english -- https://master.php.net/note/delete/85992/non-english
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Reject -- https://master.php.net/note/reject/85992
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