Mercurial > octave
view scripts/plot/appearance/lighting.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 | c5842206aaea |
children | 3a2b891d0b33 e9a0469dedd9 |
line wrap: on
line source
## Copyright (C) 2016 Markus Muetzel ## ## 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 {} {} lighting (@var{type}) ## @deftypefnx {} {} lighting (@var{hax}, @var{type}) ## Set the lighting of patch or surface graphic objects. ## ## Valid arguments for @var{type} are ## ## @table @asis ## @item @qcode{"flat"} ## Draw objects with faceted lighting effects. ## ## @item @qcode{"gouraud"} ## Draw objects with linear interpolation of the lighting effects between the ## vertices. ## ## @item @qcode{"none"} ## Draw objects without light and shadow effects. ## @end table ## ## If the first argument @var{hax} is an axes handle, then change the lighting ## effects of objects in this axis, rather than the current axes returned by ## @code{gca}. ## ## The lighting effects are only visible if at least one light object is ## present and visible in the same axes. ## ## @seealso{light, fill, mesh, patch, pcolor, surf, surface, shading} ## @end deftypefn ## Author: mmuetzel function lighting (varargin) [hax, varargin, nargin] = __plt_get_axis_arg__ ("lighting", varargin{:}); if (nargin != 1) print_usage (); endif mode = varargin{1}; if (! ischar (mode)) error ("lighting: MODE must be a string"); elseif (! any (strcmpi (mode, {"flat", "gouraud", "none"}))) error ('lighting: Invalid MODE "%s"', mode); endif if (isempty (hax)) hax = gca (); endif ## Find all patch and surface objects that are descendants of hax ## and which are not part of a contour plot hggroup. hlist = []; kids = get (hax, "children"); while (! isempty (kids)) types = get (kids, "type"); hlist = [hlist; kids(strcmp(types, "patch"))]; hlist = [hlist; kids(strcmp(types, "surface"))]; parents = kids(strcmp (types, "axes")); hglist = kids(strcmp (types, "hggroup")); for i = 1 : numel (hglist) props = get (hglist(i)); if (! isfield (props, "levelstep")) parents(end+1) = hglist(i); endif endfor kids = get (parents, "children"); endwhile ## FIXME: This is the old, simple code. ## Unfortunately, it also lights contour plots which is not desirable. ##hp = findobj (hax, "type", "patch"); ##hs = findobj (hax, "type", "surface"); ##hlist = [hp(:); hs(:)]; if (isempty (hlist)) return; endif ## Change "EdgeLighting" for meshes instead of "FaceLighting" fc = get (hlist, "facecolor"); is_mesh = strcmp (fc, "none"); if (! iscell (fc)) fc = {fc}; endif bc = get (hax, "color"); if (strcmp (bc, "none")) if (isprop (get (hax, "parent"), "color")) bc = get (get (hax, "parent"), "color"); endif if (isempty (bc) || strcmp (bc, "none")) bc = [1 1 1]; endif endif is_mesh = is_mesh | cellfun (@(x) isequal (x, bc), fc); set (hlist(! is_mesh), "facelighting", mode, "edgelighting", "none"); set (hlist(is_mesh), "edgelighting", mode, "facelighting", "none"); endfunction %!demo %! clf; %! colormap ("default"); %! sombrero (); %! shading flat %! lighting flat %! light (); %! title ("shading flat - lighting flat"); %!demo %! clf; %! colormap ("default"); %! sombrero (); %! shading interp %! lighting gouraud %! light (); %! title ("shading interp - lighting gouraud"); %!demo %! clf; %! colormap ("default"); %! pcolor (peaks ()); %! shading flat %! lighting flat %! light (); %! view (3) %! title ("shading flat - lighting flat"); %!demo %! clf; %! colormap ("default"); %! pcolor (peaks ()); %! shading interp %! lighting gouraud %! light (); %! view (3) %! title ("shading interp - lighting gouraud"); %!demo %! clf; %! colormap ("default"); %! mesh (sombrero ()); %! shading flat %! lighting flat %! light (); %! title ("shading flat - lighting flat"); %!demo %! clf; %! colormap ("default"); %! mesh (sombrero ()); %! shading interp %! lighting gouraud %! light (); %! title ("shading interp - lighting gouraud"); %!test %! hf = figure ("visible", "off"); %! unwind_protect %! ha = axes; %! hm = mesh (sombrero ()); %! hp = patch; %! hs = surface; %! lighting flat %! assert (get (hp, "facelighting"), "flat"); %! assert (get (hs, "facelighting"), "flat"); %! assert (get (hp, "edgelighting"), "none"); %! assert (get (hs, "edgelighting"), "none"); %! assert (get (hm, "edgelighting"), "flat"); %! lighting gouraud %! assert (get (hp, "facelighting"), "gouraud"); %! assert (get (hs, "facelighting"), "gouraud"); %! assert (get (hp, "edgelighting"), "none"); %! assert (get (hs, "edgelighting"), "none"); %! assert (get (hm, "edgelighting"), "gouraud"); %! lighting none %! assert (get (hp, "facelighting"), "none"); %! assert (get (hs, "facelighting"), "none"); %! assert (get (hp, "edgelighting"), "none"); %! assert (get (hs, "edgelighting"), "none"); %! assert (get (hm, "edgelighting"), "none"); %! lighting (ha, "flat") %! assert (get (hp, "facelighting"), "flat"); %! assert (get (hs, "facelighting"), "flat"); %! assert (get (hp, "edgelighting"), "none"); %! assert (get (hs, "edgelighting"), "none"); %! assert (get (hm, "edgelighting"), "flat"); %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect ## Test on axes which has no patch or mesh objects %!test %! hf = figure ("visible", "off"); %! unwind_protect %! lighting flat %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect %!error lighting () %!error lighting (1, 2, "flat") %!error <MODE must be a string> lighting (-1) %!error <MODE must be a string> lighting ({}) %!error <Invalid MODE "foo"> lighting foo %!error <Invalid call to lighting> lighting (-1, "flat")