/**
* check if map zoom is given coorect
*
* @return bool
*/
protected function _checkZoom()
{
$zoom = $this->_mapData->getZoom();
$minZoom = $this->_tileSource->getMinZoom();
$maxZoom = $this->_tileSource->getMaxZoom();
if (is_null($zoom) || !is_numeric($zoom) || $zoom < $minZoom || $zoom > $maxZoom) {
return false;
}
return true;
}
