Thumbnails and PHP

[wmabear54]

Hi
Maybe I can get a hint from someone on this.

What I have in mind is to create the thumbnail from gif or jpeg images that I have in directories. All the gif and jpeg images are of different sizes and shapes, that is not a problem as I can run a few tests and then assign a percentage to either the width or height variable.

The problem is what to do with the rest of the space. What I mean by that is if say the original size was 500pix x 100pix and I want the thumb to be no more than 100pix, I can with no problem do that. But the thumb is only 20pix high now, there is a lot of empty space below it now.

What I want to do is build a container that is 100pix by 100pix and put the thumb into it, centered is the ideal, but left and top isn't a problem.

I think it has to do with transparent colors so that the image shows through.

Thanks in advance
Mike

[morpheus.100]

Check out php's GD image functions and bulding images.

[steve0]

No quite sure what you mean by empty space.. but
depending on how you generate your thumbnail..

here is some quasi-code that may help..using php

<?
$ImageInfo = getimagesize("imagedir/yourthumbnail");
$image_width=$ImageInfo[0];
$image_height=$ImageInfo[1];
?>
<table cellpadding=2>
<tr>
<td width="<?= $image_width?>" height="<?= $image_height ?>" valign="center" align="center">
[img]yourthumbnail[/img]" height="<?= $image_height ?>" alt="some optimized text">
</td>
</tr>
</table>

[wmabear54]

Hi
What you are saying is to just through it into a borderless table why didn't I think of that. What I had been trying to do was to createimage(100, 100);as the canvas and then put the resized image on the canvas. I had already done getimagesize for the original size to make the calulations 100/$width or 100/$height to obtain a percentage for the $newwidth or $newheight. I will play with that and see if that is all I need.
Thanks Mike

[morpheus.100]

Use

imagesx
imagesy

Many times faster

[wmabear54]

Hi morpheus.100

Yea sounds good I am finding a lots of good info in GD, checking into imagemaqick too (bad speller). Don't want to re-invent the wheel but it does a lot of good to try sometimes. Getting a little closer every day.

Mike