#39353 [Bgs]: more imagecopyresized() alpha problems

ID: 39353 User updated by: seth at pricepages dot org Reported By: seth at pricepages dot org Status: Bogus Bug Type: GD related Operating System: Mac 10.4 PHP Version: 5CVS-2006-11-02 (snap) Assigned To: pajoye New Comment: That is a workaround. imagecopyresized() isn't working as defined in the manual, so you've changed the destination image to compensate. I suppose it's fine if you don't want to fix it, I think I can use this workaround for now. There is a waste of pixel processing, though. You need to process the entire final image twice. But I've seen worse code in the GD library... Previous Comments: ------------------------------------------------------------------------ [2006-11-04 18:59:26] pajoye@php.net $img = imagecreatetruecolor($width, $height); $bgdalpha = imagecolorallocatealpha($img,0,0,0, 127); imagefill($img, 0,0, $bgdalpha); imagecopyresized($img, $small, 0,0, 0,0, $width, $height, $srcW,$srcH); imagesavealpha($img, 1); imagepng($img, 'a.png'); ------------------------------------------------------------------------ [2006-11-04 18:10:10] seth at pricepages dot org But I *still* can't produce the image that I want. I simply want to enlarge $small. How can I do this? ------------------------------------------------------------------------ [2006-11-04 17:50:39] pajoye@php.net "Shouldn't it be default?" Backward compatibility... GD is an old library. But things are getting better. No bug > bogus. ------------------------------------------------------------------------ [2006-11-04 17:48:46] seth at pricepages dot org Oh! No, I didn't realize imagesavealpha() existed. Why is saving the alpha a separate function? Shouldn't it be default? ------------------------------------------------------------------------ [2006-11-04 17:45:05] seth at pricepages dot org I am simply trying to enlarge the original image. I can't find a work-around in PHP, but I can create the image in Adobe Photoshop. This is what I'm attempting to create: http://pricepages.org/temp/partialTrans2.png By the way, this image is the outline of Bermuda. :) ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/39353 -- Edit this bug report at http://bugs.php.net/?id=39353&edit=1