1 ## Copyright (C) 2007-2012 David Bateman
3 ## This file is part of Octave.
5 ## Octave is free software; you can redistribute it and/or modify it
6 ## under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 3 of the License, or (at
8 ## your option) any later version.
10 ## Octave is distributed in the hope that it will be useful, but
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 ## General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>.
20 ## @deftypefn {Function File} {} ezcontourf (@var{f})
21 ## @deftypefnx {Function File} {} ezcontourf (@dots{}, @var{dom})
22 ## @deftypefnx {Function File} {} ezcontourf (@dots{}, @var{n})
23 ## @deftypefnx {Function File} {} ezcontourf (@var{h}, @dots{})
24 ## @deftypefnx {Function File} {@var{h} =} ezcontourf (@dots{})
26 ## Plot the filled contour lines of a function. @var{f} is a string, inline
27 ## function or function handle with two arguments defining the function. By
28 ## default the plot is over the domain @code{-2*pi < @var{x} < 2*pi} and
29 ## @code{-2*pi < @var{y} < 2*pi} with 60 points in each dimension.
31 ## If @var{dom} is a two element vector, it represents the minimum and maximum
32 ## value of both @var{x} and @var{y}. If @var{dom} is a four element vector,
33 ## then the minimum and maximum value of @var{x} and @var{y} are specify
36 ## @var{n} is a scalar defining the number of points to use in each dimension.
38 ## The optional return value @var{h} is a graphics handle to the created plot.
42 ## f = @@(x,y) sqrt (abs (x .* y)) ./ (1 + x.^2 + y.^2);
43 ## ezcontourf (f, [-3, 3]);
47 ## @seealso{ezplot, ezcontour, ezsurfc, ezmeshc}
50 function retval = ezcontourf (varargin)
52 [h, needusage] = __ezplot__ ("contourf", varargin{:});
66 %! f = @(x,y) sqrt(abs(x .* y)) ./ (1 + x.^2 + y.^2);
67 %! ezcontourf (f, [-3, 3]);