Posted by Zbigniew Lisiecki on 06/25/05 06:48

Joseph Melnick wrote:

> Zbigniew Lisiecki wrote:
>
> "Zbigniew Lisiecki" <zbyszek@evot.org> wrote in message
> news:d9h726$ebv$2@nemesis.news.tpi.pl...
>> Hi Ervin,
>>
>> your wrote:
>>> Zbigniew Lisiecki wrote:
>>>> Does the width transformation occur on a client side !!! ?
>>> yes.
>>> Are you surpised?
>>
>> yes !
>> I don't see any purpose.
>> "width" tag asures there will be no other resolution in client,
>> so it makes no sense to provide it.
>>
>>> Tip: do not try to use Apache as a resizingtool. ;-)
>>
>> why ?
>> i tried imagecopyresampled() but it wont' work now. i need some more
>> work. or some exapmle if you have one
>>
>>>> Could somebody help me, please.
>>> yes.
>>> But you give too little information.
>>
>> I am using apache 2.0 handler with PHP Version 4.3.4 on SuSE 9.1 Linux.
>> GD Support enabled, GD Version bundled (2.0.15 compatible),
>> FreeType Support enabled, FreeType Linkage with freetype, T1Lib Support
>> enabled, JPG Support enabled
>>
>> I'd like to provide pictures of some landmaps of 3700 x 4700 pixels size,
>> that is up to 5 MB jpg file size. I effectively want to transfer images
>> to the client in max 700 x 800 pixels resolution.
>> Also some 1000 x 1000 pixels photos are too big now. jpg files have
>> 0.5MB, and I'd like to transfer up to 100k for each picture.
>>
>> I have a lot of such images, so I'd like to resize them on demand and
>> keep smaller versions somewhere in the servers cache. I'd like to omit
>> any macromedia, or other techniques with bigger ressource demands.
>>
>>> What OS do you use? *Nix? W$? Mac?
>>> Do you want to spend $$ on it?
>>
>> I hope not !
>> I could even compile instaed -;)
>>
>> best,
>> zbyszek
>> --
>> http://zbyszek.evot.org
>
> You would do well to use GD library to batch convert your images to the
> sizes you require on your server. It requires a fair amount of processing
> time to resize images and you should only need to do this once and store
> smaller resampled images in an alternate directory. (I use a thumbs
> directory to store these types of images.)
>
> This type of php script will often require greater than 30 seconds to run
> therefore you will have to change the default timeout setting at the start
> of your resizer script.

Hi Joseph,
do you have a code example ? i try something like this to resize to 300x300

$iname= my original jpg file
$src_im = @imagecreatefromjpg($iname);
$dst_im = imagecreate(300, 300);
$icr=imagecopyresampled ($dst_im, $src_im, $dstX, $dstY, $srcX, $srcY,
$dstW, $dstH, $srcW, $srcH);
$ifile="thumbs/i";
$ij=imagejpg ($dst_im, $ifile);

but it still won't work for now.
z
--
http://zbyszek.evot.org

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