docs: @RequestMapping(value = "/legendgraphic/{layerId}/{styleName}/{ruleIndex}.{format}", method = RequestMethod.GET)
  	public ModelAndView getRuleGraphic(@PathVariable("layerId") String layerId,
  			@PathVariable("styleName") String styleName, @PathVariable("ruleIndex") Integer ruleIndex,
  			@PathVariable("format") String format, @RequestParam(value = "width", required = false) Integer width,
  			@RequestParam(value = "height", required = false) Integer height,
  			@RequestParam(value = "scale", required = false) Double scale, HttpServletRequest request)
  			throws GeomajasException {
  		return getGraphic(layerId, styleName, ruleIndex, format, width, height, scale, false, request);
  	}