X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;ds=sidebyside;f=octave_packages%2Fm%2Fplot%2Fezmeshc.m;fp=octave_packages%2Fm%2Fplot%2Fezmeshc.m;h=1e03478b304676be685b0a0d3b43de707e863a5e;hb=1c0469ada9531828709108a4882a751d2816994a;hp=0000000000000000000000000000000000000000;hpb=63de9f36673d49121015e3695f2c336ea92bc278;p=CreaPhase.git diff --git a/octave_packages/m/plot/ezmeshc.m b/octave_packages/m/plot/ezmeshc.m new file mode 100644 index 0000000..1e03478 --- /dev/null +++ b/octave_packages/m/plot/ezmeshc.m @@ -0,0 +1,79 @@ +## Copyright (C) 2007-2012 David Bateman +## +## This file is part of Octave. +## +## Octave is free software; you can redistribute it and/or modify it +## under the terms of the GNU General Public License as published by +## the Free Software Foundation; either version 3 of the License, or (at +## your option) any later version. +## +## Octave is distributed in the hope that it will be useful, but +## WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +## General Public License for more details. +## +## You should have received a copy of the GNU General Public License +## along with Octave; see the file COPYING. If not, see +## . + +## -*- texinfo -*- +## @deftypefn {Function File} {} ezmeshc (@var{f}) +## @deftypefnx {Function File} {} ezmeshc (@var{fx}, @var{fy}, @var{fz}) +## @deftypefnx {Function File} {} ezmeshc (@dots{}, @var{dom}) +## @deftypefnx {Function File} {} ezmeshc (@dots{}, @var{n}) +## @deftypefnx {Function File} {} ezmeshc (@dots{}, 'circ') +## @deftypefnx {Function File} {} ezmeshc (@var{h}, @dots{}) +## @deftypefnx {Function File} {@var{h} =} ezmeshc (@dots{}) +## +## Plot the mesh and contour lines defined by a function. @var{f} is a string, +## inline function or function handle with two arguments defining the function. +## By default the plot is over the domain @code{-2*pi < @var{x} < 2*pi} and +## @code{-2*pi < @var{y} < 2*pi} with 60 points in each dimension. +## +## If @var{dom} is a two element vector, it represents the minimum and maximum +## value of both @var{x} and @var{y}. If @var{dom} is a four element vector, +## then the minimum and maximum value of @var{x} and @var{y} are specify +## separately. +## +## @var{n} is a scalar defining the number of points to use in each dimension. +## +## If three functions are passed, then plot the parametrically defined +## function @code{[@var{fx} (@var{s}, @var{t}), @var{fy} (@var{s}, @var{t}), +## @var{fz} (@var{s}, @var{t})]}. +## +## If the argument 'circ' is given, then the function is plotted over a disk +## centered on the middle of the domain @var{dom}. +## +## The optional return value @var{h} is a 2-element vector with a graphics +## handle for the created mesh plot and a second handle for the created contour +## plot. +## +## @example +## @group +## f = @@(x,y) sqrt (abs (x .* y)) ./ (1 + x.^2 + y.^2); +## ezmeshc (f, [-3, 3]); +## @end group +## @end example +## +## @seealso{ezplot, ezsurfc, ezsurf, ezmesh} +## @end deftypefn + +function retval = ezmeshc (varargin) + + [h, needusage] = __ezplot__ ("meshc", varargin{:}); + + if (needusage) + print_usage (); + endif + + if (nargout > 0) + retval = h; + endif +endfunction + + +%!demo +%! clf +%! f = @(x,y) sqrt(abs(x .* y)) ./ (1 + x.^2 + y.^2); +%! ezmeshc (f, [-3, 3]); +