/** * saves image file for given tile * * @param resource $image * @param int $x * @param int $y * @param int $zoom */ public function addTile($image, $x, $y, $zoom) { $this->_imageHandler->saveImage($image, $this->_getFileName($x, $y, $zoom)); if ($this->_getSizeOfCache() > $this->_cacheSize) { $this->_cleanCache(); } }