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doc: Add Colin Macdonald and Mike Miller to contributors.in
author Jordi Gutiérrez Hermoso <jordigh@octave.org>
date Tue, 13 Mar 2012 01:30:26 -0400
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children 78f57b14535c
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1 ## Copyright (C) 2007-2012 David Bateman
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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 3 of the License, or (at
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8 ## your option) 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, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {} ezmeshc (@var{f})
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21 ## @deftypefnx {Function File} {} ezmeshc (@var{fx}, @var{fy}, @var{fz})
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22 ## @deftypefnx {Function File} {} ezmeshc (@dots{}, @var{dom})
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23 ## @deftypefnx {Function File} {} ezmeshc (@dots{}, @var{n})
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24 ## @deftypefnx {Function File} {} ezmeshc (@dots{}, "circ")
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25 ## @deftypefnx {Function File} {} ezmeshc (@var{h}, @dots{})
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26 ## @deftypefnx {Function File} {@var{h} =} ezmeshc (@dots{})
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27 ##
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28 ## Plot the mesh and contour lines defined by a function. @var{f} is a string,
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29 ## inline function or function handle with two arguments defining the function.
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30 ## By default the plot is over the domain @code{-2*pi < @var{x} < 2*pi} and
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31 ## @code{-2*pi < @var{y} < 2*pi} with 60 points in each dimension.
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32 ##
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33 ## If @var{dom} is a two element vector, it represents the minimum and maximum
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34 ## value of both @var{x} and @var{y}. If @var{dom} is a four element vector,
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35 ## then the minimum and maximum value of @var{x} and @var{y} are specify
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36 ## separately.
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37 ##
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38 ## @var{n} is a scalar defining the number of points to use in each dimension.
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39 ##
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40 ## If three functions are passed, then plot the parametrically defined
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41 ## function @code{[@var{fx} (@var{s}, @var{t}), @var{fy} (@var{s}, @var{t}),
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42 ## @var{fz} (@var{s}, @var{t})]}.
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43 ##
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44 ## If the argument "circ" is given, then the function is plotted over a disk
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45 ## centered on the middle of the domain @var{dom}.
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46 ##
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47 ## The optional return value @var{h} is a 2-element vector with a graphics
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48 ## handle for the created mesh plot and a second handle for the created contour
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49 ## plot.
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50 ##
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51 ## @example
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52 ## @group
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53 ## f = @@(x,y) sqrt (abs (x .* y)) ./ (1 + x.^2 + y.^2);
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54 ## ezmeshc (f, [-3, 3]);
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55 ## @end group
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56 ## @end example
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57 ##
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58 ## @seealso{ezplot, ezsurfc, ezsurf, ezmesh}
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59 ## @end deftypefn
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60
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61 function retval = ezmeshc (varargin)
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62
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63 [h, needusage] = __ezplot__ ("meshc", varargin{:});
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64
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65 if (needusage)
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66 print_usage ();
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67 endif
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68
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69 if (nargout > 0)
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70 retval = h;
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71 endif
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72
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73 endfunction
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74
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75
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76 %!demo
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77 %! clf;
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78 %! colormap ('default');
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79 %! f = @(x,y) sqrt (abs (x .* y)) ./ (1 + x.^2 + y.^2);
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80 %! ezmeshc (f, [-3, 3]);
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