function vrep = obtainVrep1d(choice)
% This is a subfunction.
%
% See also: obtainVRep, obtainHRep

% The elk-library: convex geometry applied to crystallization modeling.
%   Copyright (C) 2012 Alexander Reinhold
%
% This program is free software: you can redistribute it and/or modify it 
%   under the terms of the GNU General Public License as published by the 
%   Free Software Foundation, either version 3 of the License, or (at your 
%   option) any later version.
%
% This program is distributed in the hope that it will be useful, but 
%   WITHOUT ANY WARRANTY; without even the implied warranty of 
%   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
%   General Public License for more details.
%
% You should have received a copy of the GNU General Public License along 
%   with this program.  If not, see <http://www.gnu.org/licenses/>.

switch choice
    case 'line'
        vrep.V = [0;1];
    otherwise
        % The error refers to higher dimension objects, too. The functions
        % are called recursively to find the appropriate object name. If
        % iterated into lower dimension, the object gains some flatness in
        % higher dimensions.
        error(['The specified object ''' choice ''' does not exist, or the required dimension is lower than native dimension of the object.']);
end
