code: @Deprecated
  	public static PointsToPolyline splitMerge(@Nullable ConfigSplitMergeLineFit config ) {
  		if( config == null )
  			config = new ConfigSplitMergeLineFit();
  		config.checkValidity();
  		return new SplitMergeLineRefine_to_PointsToPolyline(config);
  	}
docs: Use a split-merge strategy to fit the contour
  
  @see SplitMergeLineFit
  
  @param config Configuration. null if use default
  @return {@link SplitMergeLineRefine_to_PointsToPolyline}