image_lib->crop()

[eluser]AdamCMills[/eluser]
This seems to do nothing ... I am running it here:

http://myvaluecoupons.com/user_panel/avatar_upload

log in
user: test
pass: test!
if you upload an image
drag on the large version to create crop marks (should see a preview of how it should look)
then click the "crop" button, you'll see it seems to do nothing. This is the code I have running:

Code:

$config['image_library'] = 'gd2';
$config['source_image'] = $this->session->flashdata('file');
$config['x_axis'] = $_POST['x'];
$config['y_axis'] = $_POST['y'];
$config['maintain_ratio'] = FALSE;
        
$this->load->library('image_lib', $config);
if ( ! $this->image_lib->crop()){
     echo $this->image_lib->display_errors();
}
echo '<img src="'.substr($config['source_image'],1).'" />';

if I set a height ... it does something just not very much ... any help on how exactly to get this crop to show up, and correctly would be greatly appreciated.