UIAddLine

UIAddLine - Interactively add horizontal/vertical line to existing plot.

  USAGE

    line = UIAddLine(dir,<options>)

    dir            'v' for vertical, 'h' for horizontal
    <options>      options for function <a href="matlab:help plot">plot</a>

  NOTE

    Click where the line should appear, then hit 'ENTER'.

0001 function line = UIAddLine(dir,varargin)
0002 
0003 %UIAddLine - Interactively add horizontal/vertical line to existing plot.
0004 %
0005 %  USAGE
0006 %
0007 %    line = UIAddLine(dir,<options>)
0008 %
0009 %    dir            'v' for vertical, 'h' for horizontal
0010 %    <options>      options for function <a href="matlab:help plot">plot</a>
0011 %
0012 %  NOTE
0013 %
0014 %    Click where the line should appear, then hit 'ENTER'.
0015 
0016 % Copyright (C) 2004-2011 by Michaël Zugaro
0017 %
0018 % This program is free software; you can redistribute it and/or modify
0019 % it under the terms of the GNU General Public License as published by
0020 % the Free Software Foundation; either version 3 of the License, or
0021 % (at your option) any later version.
0022 
0023 % Check number of parameters
0024 if nargin < 1,
0025   error('Incorrect number of parameters (type ''help <a href="matlab:help UIAddLine">UIAddLine</a>'' for details).');
0026 end
0027 
0028 hold on;
0029 x = ginput;
0030 if strcmp(lower(dir),'v'),
0031     line = plot([x(end,1) x(end,1)],ylim,varargin{:});
0032 else
0033     line = plot(xlim,[x(end,2) x(end,2)],varargin{:});
0034 end