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annotate scripts/plot/meshgrid.m @ 5214:eecc24b92d97

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[project @ 2005-03-16 17:14:12 by jwe]
author jwe
date Wed, 16 Mar 2005 17:14:12 +0000
parents c08cb1098afc
children 4c8a2e4e0717
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1 ## Copyright (C) 1996, 1997 John W. Eaton
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 2, or (at your option)
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8 ## any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, write to the Free
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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18 ## 02111-1307, USA.
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {[@var{xx}, @var{yy}] =} meshgrid (@var{x}, @var{y})
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22 ## @deftypefnx {Function File} {[@var{xx}, @var{yy}] =} meshgrid (@var{x})
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23 ## Given vectors of @var{x} and @var{y} coordinates, return two matrices corresponding
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24 ## to the @var{x} and @var{y} coordinates of a mesh. The rows of @var{xx} are copies of @var{x},
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25 ## and the columns of @var{yy} are copies of @var{y}.
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26 ## @end deftypefn
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27 ##
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28 ## @seealso{sombrero, plot, semilogx, semilogy, loglog, polar, mesh,
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29 ## meshdom, contour, bar, stairs, replot, xlabel, ylabel, and title}
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31 ## Author: jwe
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33 function [xx, yy] = meshgrid (x, y)
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35 if (nargin == 1)
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36 y = x;
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37 endif
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38 if (nargin > 0 && nargin < 3)
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39 if (isvector (x) && isvector (y))
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40 xx = ones (length (y), 1) * x(:).';
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41 yy = y(:) * ones (1, length (x));
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42 else
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43 error ("meshgrid: arguments must be vectors");
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44 endif
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45 else
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46 usage ("[xx, yy] = meshgrid (x, y)");
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47 endif
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48
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49 endfunction