* @param string[] $aRoutePoints List of x,y coordinates along a route.
* @param float $fRouteWidth Buffer around the route to use.
* @param bool $bBounded True if the viewbox bounded.
* @param string[] $aRoutePoints List of x,y coordinates along a route.
* @param float $fRouteWidth Buffer around the route to use.
* @param bool $bBounded True if the viewbox bounded.