docs: public static CalibrationDetectorCircleRegularGrid circleRegularGrid( @Nullable ConfigCircleRegularGrid config ,
  																		  ConfigGridDimen configGrid ) {
  		if( config == null )
  			config = new ConfigCircleRegularGrid();
  		config.checkValidity();
  
  		return new CalibrationDetectorCircleRegularGrid(config,configGrid);
  	}