Answered phpthumbsup - Can I use this to create a thumbnail on image upload through my custom component?

private function generateThumbs($path) {
    
    // Check if landscape or portrait
    list($width, $height) = getimagesize($path);
    if ($width > $height) {
        
        // Landscape
        $thumbnail_widths = array(70, 320, 820);
        foreach ($thumbnail_widths as $thumbnail_width) {
            $modPhpThumb = new modPhpThumb($this->modx);
            $modPhpThumb->setSourceFilename($path); // original image
            $modPhpThumb->setParameter('w', $thumbnail_width);
            $modPhpThumb->setParameter('config_output_format', 'jpeg');
            $output_filename = pathinfo($path,PATHINFO_DIRNAME).'/thumbnails/'.basename($path).'_'.$thumbnail_width.'.'.$modPhpThumb->config_output_format;

            if ($modPhpThumb->GenerateThumbnail()) {
                $modPhpThumb->RenderToFile($output_filename);
            }
            unset($modPhpThumb);
        }
    } else {

        // Portrait or Square
        $thumbnail_heights = array(50, 320, 680);
        foreach ($thumbnail_heights as $thumbnail_height) {
            $modPhpThumb = new modPhpThumb($this->modx);
            $modPhpThumb->setSourceFilename($path); // original image
            $modPhpThumb->setParameter('h', $thumbnail_height);
            $modPhpThumb->setParameter('config_output_format', 'jpeg');
            $output_filename = pathinfo($path,PATHINFO_DIRNAME).'/thumbnails/'.basename($path).'_'.$thumbnail_height.'.'.$modPhpThumb->config_output_format;
            if ($modPhpThumb->GenerateThumbnail()) {
                $modPhpThumb->RenderToFile($output_filename);
            }
            unset($modPhpThumb);
        }
    }


}