Proportionally scale image - imagecopyresampled()

[ttmt]

Proportionally scale image - imagecopyresampled()

 

 

This is part of a function I have to upload images and

create thumbnails from the stored image - '$stored_image'

 

$src_image = imagecreatefromjpeg($stored_image);
//
$src_width = imagesx($src_image);
$src_height = imagesy($src_image);
$new_width = 85;
$new_height = 85; 
//
if($src_width > $src_height){
$thumb_w = $new_width;
$thumb_h = $src_height*($new_height/$src_width); 
}
if($src_width < $src_height){
$thumb_w = $src_width*($new_width/$src_height);
$thumb_h = $new_height;
}
if($src_width == $src_height){
$thumb_w = $new_width;
$thumb_h = $new_height;
}
//
$thumb = imagecreatetruecolor($thumb_w, $thumb_h);
imagecopyresampled($thumb, $src_image,0,0,0,0,$thumb_w, $thumb_h, $src_width, $src_height);
imagejpeg($thumb, $stored_thumb, 100);
imagedestroy($src_image);
imagedestroy($thumb);
}else{

 

The images are different size and orientations, landscape and portrait.

The thumbnails need to have the same height so I need to proportionally scale the images

 

How can I proportionally scale images so the thumbnails have the same height

 

I'm really stuck here so any help would be greatly appreciated.

 

 

[floridaflatlander]

I'm almost sure it's a math problem that would be adjusted for each photo, as a temp fix and if you need 90px in height on the dot right now you can make your width wider than needed to make sure 90px is the height all the time. My work day is starting and so I'll come back and play with this later.

[gojo62]

$max = 100;

$newwidth = $max / $height * $width;

$newheight = $max;

 

hope that helps Gary