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view scripts/plot/draw/ezmesh.m @ 22302:1c4cd12987f5
Use Octave syntax in graphics demos.
* inputdlg.m, listdlg.m, waitbar.m, autumn.m, bone.m, cool.m, copper.m,
cubehelix.m, flag.m, gray.m, hot.m, hsv.m, jet.m, lines.m, ocean.m, pink.m,
prism.m, rainbow.m, rgbplot.m, spring.m, summer.m, viridis.m, white.m,
winter.m, annotation.m, axis.m, clabel.m, daspect.m, datetick.m, grid.m,
legend.m, lighting.m, material.m, pbaspect.m, shading.m, text.m, xlim.m,
ylim.m, zlim.m, area.m, bar.m, barh.m, camlight.m, colorbar.m, comet.m,
comet3.m, contour.m, contour3.m, contourf.m, cylinder.m, ellipsoid.m,
errorbar.m, ezcontour.m, ezcontourf.m, ezmesh.m, ezmeshc.m, ezplot.m,
ezplot3.m, ezsurf.m, ezsurfc.m, feather.m, fill.m, fplot.m, isocaps.m,
isonormals.m, isosurface.m, light.m, line.m, loglog.m, loglogerr.m, mesh.m,
meshc.m, meshz.m, pareto.m, patch.m, pcolor.m, pie.m, pie3.m, plot.m, plot3.m,
plotmatrix.m, plotyy.m, polar.m, quiver.m, quiver3.m, rectangle.m, ribbon.m,
rose.m, scatter.m, scatter3.m, semilogx.m, semilogxerr.m, semilogy.m,
semilogyerr.m, shrinkfaces.m, slice.m, smooth3.m, sombrero.m, stairs.m, stem.m,
stem3.m, stemleaf.m, surf.m, surfc.m, surfl.m, surfnorm.m, tetramesh.m,
trimesh.m, triplot.m, trisurf.m, waterfall.m, copyobj.m, hold.m, linkaxes.m,
linkprop.m, printd.m, refreshdata.m, subplot.m, zoom.m, pcr.m, dump_demos.m:
Use Octave syntax in graphics demos.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 15 Aug 2016 15:15:30 -0700 |
parents | 516bb87ea72e |
children | bac0d6f07a3e |
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## Copyright (C) 2007-2015 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 ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {} {} ezmesh (@var{f}) ## @deftypefnx {} {} ezmesh (@var{fx}, @var{fy}, @var{fz}) ## @deftypefnx {} {} ezmesh (@dots{}, @var{dom}) ## @deftypefnx {} {} ezmesh (@dots{}, @var{n}) ## @deftypefnx {} {} ezmesh (@dots{}, "circ") ## @deftypefnx {} {} ezmesh (@var{hax}, @dots{}) ## @deftypefnx {} {@var{h} =} ezmesh (@dots{}) ## ## Plot the mesh 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 meshed domain ## @code{-2*pi <= @var{x} | @var{y} <= 2*pi} with 60 points 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 @var{dom} is a two element vector, it represents the minimum and maximum ## values of both @var{x} and @var{y}. If @var{dom} is a four element vector, ## then the minimum and maximum values are @code{[xmin xmax ymin ymax]}. ## ## @var{n} is a scalar defining the number of points to use in each dimension. ## ## If the argument @qcode{"circ"} is given, then the function is plotted over ## a disk centered on the middle of the domain @var{dom}. ## ## If the first argument @var{hax} is an axes handle, then plot into this axis, ## rather than the current axes returned by @code{gca}. ## ## The optional return value @var{h} is a graphics handle to the created ## surface object. ## ## Example 1: 2-argument function ## ## @example ## @group ## f = @@(x,y) sqrt (abs (x .* y)) ./ (1 + x.^2 + y.^2); ## ezmesh (f, [-3, 3]); ## @end group ## @end example ## ## Example 2: parametrically defined function ## ## @example ## @group ## fx = @@(s,t) cos (s) .* cos (t); ## fy = @@(s,t) sin (s) .* cos (t); ## fz = @@(s,t) sin (t); ## ezmesh (fx, fy, fz, [-pi, pi, -pi/2, pi/2], 20); ## @end group ## @end example ## ## @seealso{mesh, ezmeshc, ezplot, ezsurf, ezsurfc, hidden} ## @end deftypefn function h = ezmesh (varargin) [htmp, needusage] = __ezplot__ ("mesh", varargin{:}); if (needusage) print_usage (); endif if (nargout > 0) h = htmp; endif endfunction %!demo %! clf; %! colormap ("default"); %! f = @(x,y) sqrt (abs (x .* y)) ./ (1 + x.^2 + y.^2); %! ezmesh (f, [-3, 3]); %!demo %! clf; %! colormap ("default"); %! fx = @(s,t) cos (s) .* cos (t); %! fy = @(s,t) sin (s) .* cos (t); %! fz = @(s,t) sin (t); %! ezmesh (fx, fy, fz, [-pi,pi,-pi/2,pi/2], 20);