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## Copyright (C) 1996, 1997, 2007 John W. Eaton
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## This file is part of Octave.
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## Octave is free software; you can redistribute it and/or modify it
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## under the terms of the GNU General Public License as published by
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## the Free Software Foundation; either version 3 of the License, or (at
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## your option) any later version.
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## Octave is distributed in the hope that it will be useful, but
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## WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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## General Public License for more details.
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## You should have received a copy of the GNU General Public License
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## along with Octave; see the file COPYING. If not, see
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## <http://www.gnu.org/licenses/>.
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## @deftypefn {Function File} {} meshc (@var{x}, @var{y}, @var{z})
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## Plot a mesh and contour given matrices @var{x}, and @var{y} from
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## @code{meshgrid} and a matrix @var{z} corresponding to the @var{x} and
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## @var{y} coordinates of the mesh. If @var{x} and @var{y} are vectors,
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## then a typical vertex is (@var{x}(j), @var{y}(i), @var{z}(i,j)). Thus,
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## columns of @var{z} correspond to different @var{x} values and rows of
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## @var{z} correspond to different @var{y} values.
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## @seealso{meshgrid, mesh, contour}
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function h = meshc (varargin)
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tmp = surface (varargin{:});
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ax = get (tmp, "parent");
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set (tmp, "facecolor", "w");
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set (tmp, "edgecolor", "flat");
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set (ax, "view", [-37.5, 30]);
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z = get (tmp, "zdata");
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zmin = 2 * (min(z(:)) - max(z(:)));
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[c, tmp2] = __contour__ (ax, zmin, varargin{:});