Mercurial > octave
view scripts/plot/isonormals.m @ 14868:5d3a684236b0
maint: Use Octave coding conventions for cuddling parentheses in scripts directory
* lin2mu.m, loadaudio.m, wavread.m, accumarray.m, bicubic.m, celldisp.m,
colon.m, cplxpair.m, dblquad.m, divergence.m, genvarname.m, gradient.m,
int2str.m, interp1.m, interp1q.m, interp2.m, interpn.m, loadobj.m, nthargout.m,
__isequal__.m, __splinen__.m, quadgk.m, quadl.m, quadv.m, rat.m, rot90.m,
rotdim.m, saveobj.m, subsindex.m, triplequad.m, delaunay3.m, griddata.m,
inpolygon.m, tsearchn.m, voronoi.m, get_first_help_sentence.m, which.m,
gray2ind.m, pink.m, dlmwrite.m, strread.m, textread.m, textscan.m, housh.m,
ishermitian.m, issymmetric.m, krylov.m, logm.m, null.m, rref.m,
compare_versions.m, copyfile.m, dump_prefs.m, edit.m, fileparts.m,
getappdata.m, isappdata.m, movefile.m, orderfields.m, parseparams.m,
__xzip__.m, rmappdata.m, setappdata.m, swapbytes.m, unpack.m, ver.m, fminbnd.m,
fminunc.m, fsolve.m, glpk.m, lsqnonneg.m, qp.m, sqp.m, configure_make.m,
copy_files.m, describe.m, get_description.m, get_forge_pkg.m, install.m,
installed_packages.m, is_architecture_dependent.m, load_package_dirs.m,
print_package_description.m, rebuild.m, repackage.m, save_order.m, shell.m,
allchild.m, ancestor.m, area.m, axes.m, axis.m, clabel.m, close.m, colorbar.m,
comet.m, comet3.m, contour.m, cylinder.m, ezmesh.m, ezsurf.m, findobj.m,
fplot.m, hist.m, isocolors.m, isonormals.m, isosurface.m, isprop.m, legend.m,
mesh.m, meshz.m, pareto.m, pcolor.m, peaks.m, plot3.m, plotmatrix.m, plotyy.m,
polar.m, print.m, __add_datasource__.m, __add_default_menu__.m,
__axes_limits__.m, __bar__.m, __clabel__.m, __contour__.m, __errcomm__.m,
__errplot__.m, __ezplot__.m, __file_filter__.m, __fltk_print__.m,
__ghostscript__.m, __gnuplot_print__.m, __go_draw_axes__.m,
__go_draw_figure__.m, __interp_cube__.m, __marching_cube__.m, __patch__.m,
__pie__.m, __plt__.m, __print_parse_opts__.m, __quiver__.m, __scatter__.m,
__stem__.m, __tight_eps_bbox__.m, __uigetdir_fltk__.m, __uigetfile_fltk__.m,
__uiputfile_fltk__.m, quiver.m, quiver3.m, rectangle.m, refreshdata.m,
ribbon.m, scatter.m, semilogy.m, shading.m, slice.m, subplot.m, surface.m,
surfl.m, surfnorm.m, text.m, uigetfile.m, uiputfile.m, whitebg.m, deconv.m,
mkpp.m, pchip.m, polyaffine.m, polyder.m, polygcd.m, polyout.m, polyval.m,
ppint.m, ppjumps.m, ppval.m, residue.m, roots.m, spline.m, splinefit.m,
addpref.m, getpref.m, setpref.m, ismember.m, setxor.m, arch_fit.m, arch_rnd.m,
arch_test.m, autoreg_matrix.m, diffpara.m, fftconv.m, filter2.m, hanning.m,
hurst.m, periodogram.m, triangle_sw.m, sinc.m, spectral_xdf.m, spencer.m,
stft.m, synthesis.m, unwrap.m, yulewalker.m, bicgstab.m, gmres.m, pcg.m, pcr.m,
__sprand_impl__.m, speye.m, spfun.m, sprandn.m, spstats.m, svds.m,
treelayout.m, treeplot.m, bessel.m, factor.m, legendre.m, perms.m, primes.m,
magic.m, toeplitz.m, corr.m, cov.m, mean.m, median.m, mode.m, qqplot.m,
quantile.m, ranks.m, zscore.m, logistic_regression_likelihood.m,
bartlett_test.m, chisquare_test_homogeneity.m, chisquare_test_independence.m,
kolmogorov_smirnov_test.m, run_test.m, u_test.m, wilcoxon_test.m, z_test.m,
z_test_2.m, bin2dec.m, dec2base.m, mat2str.m, strcat.m, strchr.m, strjust.m,
strtok.m, substr.m, untabify.m, assert.m, demo.m, example.m, fail.m, speed.m,
test.m, now.m: Use Octave coding conventions for cuddling parentheses in
scripts directory.
author | Rik <octave@nomad.inbox5.com> |
---|---|
date | Tue, 17 Jul 2012 07:08:39 -0700 |
parents | f3d52523cde1 |
children | c2dbdeaa25df |
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## Copyright (C) 2009-2012 Martin Helm ## ## 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 {Function File} {[@var{n}] =} isonormals (@var{val}, @var{v}) ## @deftypefnx {Function File} {[@var{n}] =} isonormals (@var{val}, @var{p}) ## @deftypefnx {Function File} {[@var{n}] =} isonormals (@var{x}, @var{y}, @var{z}, @var{val}, @var{v}) ## @deftypefnx {Function File} {[@var{n}] =} isonormals (@var{x}, @var{y}, @var{z}, @var{val}, @var{p}) ## @deftypefnx {Function File} {[@var{n}] =} isonormals (@dots{}, "negate") ## @deftypefnx {Function File} {} isonormals (@dots{}, @var{p}) ## ## If called with one output argument and the first input argument ## @var{val} is a three-dimensional array that contains the data for an ## isosurface geometry and the second input argument @var{v} keeps the ## vertices of an isosurface then return the normals @var{n} in form of ## a matrix with the same size than @var{v} at computed points ## @command{[x, y, z] = meshgrid (1:l, 1:m, 1:n)}. The output argument ## @var{n} can be taken to manually set @var{VertexNormals} of a patch. ## ## If called with further input arguments @var{x}, @var{y} and @var{z} ## which are three--dimensional arrays with the same size than @var{val} ## then the volume data is taken at those given points. Instead of the ## vertices data @var{v} a patch handle @var{p} can be passed to this ## function. ## ## If given the string input argument "negate" as last input argument ## then compute the reverse vector normals of an isosurface geometry. ## ## If no output argument is given then directly redraw the patch that is ## given by the patch handle @var{p}. ## ## For example: ## @c Set example in small font to prevent overfull line ## ## @smallexample ## function [] = isofinish (p) ## set (gca, "PlotBoxAspectRatioMode", "manual", ... ## "PlotBoxAspectRatio", [1 1 1]); ## set (p, "VertexNormals", -get (p,"VertexNormals")); # Revert normals ## set (p, "FaceColor", "interp"); ## ## set (p, "FaceLighting", "phong"); ## ## light ("Position", [1 1 5]); # Available with JHandles ## endfunction ## ## N = 15; # Increase number of vertices in each direction ## iso = .4; # Change isovalue to .1 to display a sphere ## lin = linspace (0, 2, N); ## [x, y, z] = meshgrid (lin, lin, lin); ## c = abs ((x-.5).^2 + (y-.5).^2 + (z-.5).^2); ## figure (); # Open another figure window ## ## subplot (2,2,1); view (-38, 20); ## [f, v, cdat] = isosurface (x, y, z, c, iso, y); ## p = patch ("Faces", f, "Vertices", v, "FaceVertexCData", cdat, ... ## "FaceColor", "interp", "EdgeColor", "none"); ## isofinish (p); ## Call user function isofinish ## ## subplot (2,2,2); view (-38, 20); ## p = patch ("Faces", f, "Vertices", v, "FaceVertexCData", cdat, ... ## "FaceColor", "interp", "EdgeColor", "none"); ## isonormals (x, y, z, c, p); # Directly modify patch ## isofinish (p); ## ## subplot (2,2,3); view (-38, 20); ## p = patch ("Faces", f, "Vertices", v, "FaceVertexCData", cdat, ... ## "FaceColor", "interp", "EdgeColor", "none"); ## n = isonormals (x, y, z, c, v); # Compute normals of isosurface ## set (p, "VertexNormals", n); # Manually set vertex normals ## isofinish (p); ## ## subplot (2,2,4); view (-38, 20); ## p = patch ("Faces", f, "Vertices", v, "FaceVertexCData", cdat, ... ## "FaceColor", "interp", "EdgeColor", "none"); ## isonormals (x, y, z, c, v, "negate"); # Use reverse directly ## isofinish (p); ## @end smallexample ## ## @seealso{isosurface, isocolors} ## @end deftypefn ## Author: Martin Helm <martin@mhelm.de> function varargout = isonormals (varargin) na = nargin; negate = false; if (ischar (varargin{nargin})) na = nargin-1; if (strcmp (lower (varargin{nargin}), "negate")) negate = true; else error ("isonormals: Unknown option '%s'", varargin{nargin}); endif endif switch (na) case 2 c = varargin{1}; vp = varargin{2}; x = 1:size (c, 2); y = 1:size (c, 1); z = 1:size (c, 3); case 5 x = varargin{1}; y = varargin{2}; z = varargin{3}; c = varargin{4}; vp = varargin{5}; otherwise print_usage (); endswitch if (ismatrix (vp) && size (vp,2) == 3) pa = []; v = vp; elseif (ishandle (vp)) pa = vp; v = get (pa, "Vertices"); else error ("isonormals: Last argument is not a vertex list or a patch handle"); endif if (negate) normals = -__interp_cube__ (x, y, z, c, v, "normals"); else normals = __interp_cube__ (x, y, z, c, v, "normals"); endif switch (nargout) case 0 if (!isempty (pa)) set (pa, "VertexNormals", normals); endif case 1 varargout = {normals}; otherwise print_usage (); endswitch endfunction %!test %! [x, y, z] = meshgrid (0:.5:2, 0:.5:2, 0:.5:2); %! c = abs ((x-.5).^2 + (y-.5).^2 + (z-.5).^2); %! [f, v, cdat] = isosurface (x, y, z, c, .4, y); %! n = isonormals (x, y, z, c, v); %! assert (size (v), size (n)); %!test %! [x, y, z] = meshgrid (0:.5:2, 0:.5:2, 0:.5:2); %! c = abs ((x-.5).^2 + (y-.5).^2 + (z-.5).^2); %! [f, v, cdat] = isosurface (x, y, z, c, .4, y); %! np = isonormals (x, y, z, c, v); %! nn = isonormals (x, y, z, c, v, "negate"); %! assert (np, -nn);