linestringclass.m

% Class to construct line string
classdef linestringclass
    properties
        num {mustBeNumeric}
        str string
    end
    methods
        function obj = linestringclass(val1,val2,val3)
            if nargin == 3
                obj.num = val1;
                obj.str = ['Line(',num2str(val1),') = {',...
                    num2str(val2),', ',...
                    num2str(val3),'};'];
            end
        end
    end
end