/**
* Replaces the current image with a new image.
*
* Automatically converts from one format to PNG,
* which is the default when dealing with images
* on the platform.
*
* @param string $path The path to the original image
*/
public function replace ($path) {
parent::replace($path);
CachedImage::invalidate($this);
}
/**
* Creates a new footprint attachment
*/
public function __construct () {
parent::__construct();
$this->setType("FootprintAttachment");
}