PlotSlope

PlotSlope - Plot line with given slope.

  USAGE

    p = PlotSlope(x,y,slope,length,<options>)

    x,y            coordinates of central point
    slope          line slope
    length         segment length along the x axis
    <options>      line and color specification (see <a href="matlab:help plot">plot</a>)

0001 function p = PlotSlope(x,y,slope,len,varargin)
0002 
0003 %PlotSlope - Plot line with given slope.
0004 %
0005 %  USAGE
0006 %
0007 %    p = PlotSlope(x,y,slope,length,<options>)
0008 %
0009 %    x,y            coordinates of central point
0010 %    slope          line slope
0011 %    length         segment length along the x axis
0012 %    <options>      line and color specification (see <a href="matlab:help plot">plot</a>)
0013 %
0014 
0015 % Copyright (C) 2010-2016 by Michaël Zugaro
0016 %
0017 % This program is free software; you can redistribute it and/or modify
0018 % it under the terms of the GNU General Public License as published by
0019 % the Free Software Foundation; either version 3 of the License, or
0020 % (at your option) any later version.
0021 
0022 if nargin < 4,
0023   error('Incorrect number of parameters (type ''help <a href="matlab:help PlotSlope">PlotSlope</a>'' for details).');
0024 end
0025 
0026 X = x+[-len len]/2;
0027 Y = y+[-len len]/2*slope;
0028 plot(X,Y,varargin{:});