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view scripts/plot/draw/ezplot.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) 2008-2015 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 {} {} ezplot (@var{f}) ## @deftypefnx {} {} ezplot (@var{f2v}) ## @deftypefnx {} {} ezplot (@var{fx}, @var{fy}) ## @deftypefnx {} {} ezplot (@dots{}, @var{dom}) ## @deftypefnx {} {} ezplot (@dots{}, @var{n}) ## @deftypefnx {} {} ezplot (@var{hax}, @dots{}) ## @deftypefnx {} {@var{h} =} ezplot (@dots{}) ## ## Plot the 2-D curve defined by the function @var{f}. ## ## The function @var{f} may be a string, inline function, or function handle ## and can have either one or two variables. If @var{f} has one variable, then ## the function is plotted over the domain @code{-2*pi < @var{x} < 2*pi} ## with 500 points. ## ## If @var{f2v} is a function of two variables then the implicit function ## @code{@var{f}(@var{x},@var{y}) = 0} is calculated over the meshed domain ## @code{-2*pi <= @var{x} | @var{y} <= 2*pi} with 60 points in each dimension. ## ## For example: ## ## @example ## ezplot (@@(@var{x}, @var{y}) @var{x}.^2 - @var{y}.^2 - 1) ## @end example ## ## If two functions are passed as inputs then the parametric function ## ## @example ## @group ## @var{x} = @var{fx} (@var{t}) ## @var{y} = @var{fy} (@var{t}) ## @end group ## @end example ## ## @noindent ## is plotted over the domain @code{-2*pi <= @var{t} <= 2*pi} with 500 points. ## ## If @var{dom} is a two element vector, it represents the minimum and maximum ## values of both @var{x} and @var{y}, or @var{t} for a parametric plot. 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 plotting ## the function. ## ## 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 vector of graphics handles to ## the created line objects. ## ## @seealso{plot, ezplot3, ezpolar, ezcontour, ezcontourf, ezmesh, ezmeshc, ezsurf, ezsurfc} ## @end deftypefn function h = ezplot (varargin) [htmp, needusage] = __ezplot__ ("plot", varargin{:}); if (needusage) print_usage (); endif if (nargout > 0) h = htmp; endif endfunction %!demo %! ## sinc function using function handle %! f = @(x) sin (pi*x) ./ (pi*x); %! ezplot (f); %!demo %! ## example of a function string and explicit limits %! clf; %! ezplot ("1/x", [-2 2]); %!demo %! ## parameterized function example over -2*pi <= t <= +2*pi %! clf; %! ezplot (@cos, @sin); %!demo %! ## implicit function of 2 variables %! clf; %! ezplot (inline ("x^2 - y^2 - 1"));