licked. Newer clicks are are the bottom.
    properties (Access = private)
        stack
    end
    
    methods (Access = public)
        %% PointLayer (Constructor)
        % Instantiate an instance of |PointLayer|.
        function obj = PointLayer(parent)
            obj = obj@Layer(parent);
            obj.stack = [];
        end
        
        %% hasDataForCopy
        % See <Layer.html Layer documentation>.
        function has_data = hasDataForCopy(obj)
%             if obj.getStackSize() >= 1
% 