Mercurial > octave
view scripts/plot/util/hold.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 | 9121d6584f6a |
children | 533c3c4059a3 |
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## Copyright (C) 2005-2015 John W. Eaton ## ## 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 {} {} hold ## @deftypefnx {} {} hold on ## @deftypefnx {} {} hold off ## @deftypefnx {} {} hold (@var{hax}, @dots{}) ## Toggle or set the @qcode{"hold"} state of the plotting engine which ## determines whether new graphic objects are added to the plot or replace ## the existing objects. ## ## @table @code ## @item hold on ## Retain plot data and settings so that subsequent plot commands are displayed ## on a single graph. Line color and line style are advanced for each new plot ## added. ## ## @item hold all (deprecated) ## Equivalent to @code{hold on}. ## ## @item hold off ## Restore default graphics settings which clear the graph and reset axis ## properties before each new plot command. (default). ## ## @item hold ## Toggle the current hold state. ## @end table ## ## When given the additional argument @var{hax}, the hold state is modified ## for this axis rather than the current axes returned by @code{gca}. ## ## To query the current hold state use the @code{ishold} function. ## @seealso{ishold, cla, clf, newplot} ## @end deftypefn function hold (varargin) if (nargin > 0 && isscalar (varargin{1}) && isaxes (varargin{1})) hax = varargin{1}; varargin(1) = []; nargs = numel (varargin); hfig = ancestor (hax, "figure"); elseif (nargin > 0 && numel (varargin{1}) > 1 && ishandle (varargin{1})) print_usage (); else hax = gca (); hfig = gcf (); nargs = numel (varargin); endif hold_all = false; if (nargs == 0) turn_hold_off = ishold (hax); elseif (nargs == 1) state = tolower (varargin{1}); switch (state) case "off" turn_hold_off = true; case "all" turn_hold_off = false; hold_all = true; case "on" turn_hold_off = false; otherwise error ("hold: invalid hold STATE"); endswitch else print_usage (); endif if (turn_hold_off) set (hax, "nextplot", "replace"); else set (hax, "nextplot", "add"); set (hfig, "nextplot", "add"); endif endfunction %!demo %! clf; %! t = linspace (0, 2*pi, 100); %! plot (t, sin (t)); %! hold on; %! plot (t, cos (t)); %! title ({"hold on", "2 plots shown on same graph"}); %! hold off; %!demo %! clf; %! A = rand (100); %! [X, Y] = find (A > 0.95); %! imshow (A); %! hold on; %! plot (X, Y, "o"); %! hold off; %! title ("hold with image and plot"); %!demo %! clf; %! colormap ("default"); %! hold on; %! imagesc (1 ./ hilb (4)); %! plot (1:4, "-s"); %! hold off; %!demo %! clf; %! colormap ("default"); %! hold on; %! imagesc (1 ./ hilb (2)); %! imagesc (1 ./ hilb (4)); %! hold off; %!demo %! clf; %! colormap ("default"); %! hold on; %! plot (1:4, "-s"); %! imagesc (1 ./ hilb (4)); %! hold off; %!demo %! clf; %! colormap ("default"); %! t = linspace (-3, 3, 50); %! [x, y] = meshgrid (t, t); %! z = peaks (x, y); %! contourf (x, y, z, 10); %! hold on; %! plot (x(:), y(:), "^"); %! patch ([-1.0 1.0 1.0 -1.0 -1.0], [-1.0 -1.0 1.0 1.0 -1.0], "red"); %! xlim ([-2.0 2.0]); %! ylim ([-2.0 2.0]); %! colorbar ("SouthOutside"); %! title ("Test script for some plot functions"); ## hold on test %!test %! hf = figure ("visible", "off"); %! unwind_protect %! p = plot ([0 1]); %! assert (! ishold); %! hold on; %! assert (ishold); %! p1 = fill ([0 1 1], [0 0 1], "black"); %! p2 = fill ([0 1 0], [0 1 1], "red"); %! assert (length (get (hf, "children")), 1); %! assert (length (get (gca, "children")), 3); %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect ## hold off test %!test %! hf = figure ("visible", "off"); %! unwind_protect %! p = plot ([0 1]); %! assert (! ishold); %! hold on; %! assert (ishold); %! p1 = fill ([0 1 1], [0 0 1], "black"); %! hold off; %! p2 = fill ([0 1 0], [0 1 1], "red"); %! assert (length (get (hf, "children")), 1); %! assert (length (get (gca, "children")), 1); %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect