Mercurial > octave-nkf
view scripts/plot/isonormals.m @ 17281:bc924baa2c4e
doc: Add new @qcode macro for code samples which are quoted.
Macro handles options ("on") or properties ("position") more elegantly
than @code{"text"}.
* doc/interpreter/macros.texi: Add new @qcode macro.
* doc/interpreter/tips.txi: Add documentation about @qcode macro.
* doc/interpreter/basics.txi, doc/interpreter/container.txi,
doc/interpreter/emacs.txi, doc/interpreter/errors.txi,
doc/interpreter/eval.txi, doc/interpreter/expr.txi,
doc/interpreter/external.txi, doc/interpreter/func.txi,
doc/interpreter/grammar.txi, doc/interpreter/image.txi,
doc/interpreter/install.txi, doc/interpreter/interp.txi,
doc/interpreter/io.txi, doc/interpreter/matrix.txi,
doc/interpreter/numbers.txi, doc/interpreter/oop.txi,
doc/interpreter/package.txi, doc/interpreter/plot.txi,
doc/interpreter/quad.txi, doc/interpreter/sparse.txi,
doc/interpreter/strings.txi, doc/interpreter/system.txi,
doc/interpreter/vectorize.txi, libinterp/corefcn/balance.cc,
libinterp/corefcn/bitfcns.cc, libinterp/corefcn/cellfun.cc,
libinterp/corefcn/conv2.cc, libinterp/corefcn/data.cc,
libinterp/corefcn/debug.cc, libinterp/corefcn/defaults.cc,
libinterp/corefcn/dirfns.cc, libinterp/corefcn/dlmread.cc,
libinterp/corefcn/error.cc, libinterp/corefcn/file-io.cc,
libinterp/corefcn/find.cc, libinterp/corefcn/gammainc.cc,
libinterp/corefcn/graphics.cc, libinterp/corefcn/help.cc,
libinterp/corefcn/hex2num.cc, libinterp/corefcn/input.cc,
libinterp/corefcn/load-path.cc, libinterp/corefcn/load-save.cc,
libinterp/corefcn/ls-oct-ascii.cc, libinterp/corefcn/lu.cc,
libinterp/corefcn/luinc.cc, libinterp/corefcn/matrix_type.cc,
libinterp/corefcn/oct-hist.cc, libinterp/corefcn/pager.cc,
libinterp/corefcn/pr-output.cc, libinterp/corefcn/pt-jit.cc,
libinterp/corefcn/qz.cc, libinterp/corefcn/rand.cc,
libinterp/corefcn/regexp.cc, libinterp/corefcn/schur.cc,
libinterp/corefcn/sighandlers.cc, libinterp/corefcn/sparse.cc,
libinterp/corefcn/spparms.cc, libinterp/corefcn/str2double.cc,
libinterp/corefcn/svd.cc, libinterp/corefcn/symtab.cc,
libinterp/corefcn/syscalls.cc, libinterp/corefcn/toplev.cc,
libinterp/corefcn/tril.cc, libinterp/corefcn/typecast.cc,
libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc,
libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/chol.cc,
libinterp/dldfcn/colamd.cc, libinterp/dldfcn/fftw.cc, libinterp/dldfcn/qr.cc,
libinterp/dldfcn/symbfact.cc, libinterp/octave-value/ov-base.cc,
libinterp/octave-value/ov-fcn-handle.cc,
libinterp/octave-value/ov-fcn-inline.cc, libinterp/octave-value/ov-java.cc,
libinterp/octave-value/ov-range.cc, libinterp/octave-value/ov-struct.cc,
libinterp/octave-value/ov-usr-fcn.cc, libinterp/parse-tree/oct-parse.in.yy,
libinterp/parse-tree/pt-binop.cc, libinterp/parse-tree/pt-eval.cc,
libinterp/parse-tree/pt-mat.cc, scripts/@ftp/ftp.m,
scripts/deprecated/java_convert_matrix.m, scripts/deprecated/java_debug.m,
scripts/deprecated/java_unsigned_conversion.m, scripts/deprecated/shell_cmd.m,
scripts/general/dblquad.m, scripts/general/display.m,
scripts/general/genvarname.m, scripts/general/idivide.m,
scripts/general/interp1.m, scripts/general/interp2.m,
scripts/general/interp3.m, scripts/general/interpn.m, scripts/general/isa.m,
scripts/general/profexplore.m, scripts/general/profile.m,
scripts/general/quadgk.m, scripts/general/randi.m, scripts/general/structfun.m,
scripts/general/subsindex.m, scripts/general/triplequad.m,
scripts/geometry/griddata.m, scripts/geometry/griddata3.m,
scripts/geometry/griddatan.m, scripts/geometry/voronoi.m, scripts/help/help.m,
scripts/help/lookfor.m, scripts/image/cmpermute.m, scripts/image/colormap.m,
scripts/image/image.m, scripts/image/imagesc.m, scripts/image/imfinfo.m,
scripts/image/imformats.m, scripts/image/imread.m, scripts/image/imshow.m,
scripts/image/imwrite.m, scripts/image/ind2gray.m, scripts/image/lines.m,
scripts/image/rgb2ind.m, scripts/image/spinmap.m, scripts/io/dlmwrite.m,
scripts/io/strread.m, scripts/io/textread.m, scripts/io/textscan.m,
scripts/java/javaclasspath.m, scripts/java/usejava.m,
scripts/miscellaneous/bzip2.m, scripts/miscellaneous/computer.m,
scripts/miscellaneous/copyfile.m, scripts/miscellaneous/debug.m,
scripts/miscellaneous/dos.m, scripts/miscellaneous/edit.m,
scripts/miscellaneous/gzip.m, scripts/miscellaneous/license.m,
scripts/miscellaneous/mkoctfile.m, scripts/miscellaneous/movefile.m,
scripts/miscellaneous/parseparams.m, scripts/miscellaneous/unix.m,
scripts/optimization/fminbnd.m, scripts/optimization/fminsearch.m,
scripts/optimization/fminunc.m, scripts/optimization/fsolve.m,
scripts/optimization/fzero.m, scripts/optimization/glpk.m,
scripts/optimization/lsqnonneg.m, scripts/optimization/optimset.m,
scripts/optimization/pqpnonneg.m, scripts/pkg/pkg.m, scripts/plot/allchild.m,
scripts/plot/ancestor.m, scripts/plot/area.m, scripts/plot/axis.m,
scripts/plot/bar.m, scripts/plot/barh.m, scripts/plot/box.m,
scripts/plot/caxis.m, scripts/plot/cla.m, scripts/plot/clabel.m,
scripts/plot/clf.m, scripts/plot/close.m, scripts/plot/colorbar.m,
scripts/plot/daspect.m, scripts/plot/ezmesh.m, scripts/plot/ezmeshc.m,
scripts/plot/ezsurf.m, scripts/plot/ezsurfc.m, scripts/plot/findall.m,
scripts/plot/findobj.m, scripts/plot/gcbo.m, scripts/plot/gcf.m,
scripts/plot/gco.m, scripts/plot/grid.m, scripts/plot/guihandles.m,
scripts/plot/hdl2struct.m, scripts/plot/hidden.m, scripts/plot/hold.m,
scripts/plot/isonormals.m, scripts/plot/isosurface.m, scripts/plot/legend.m,
scripts/plot/mesh.m, scripts/plot/meshc.m, scripts/plot/meshz.m,
scripts/plot/newplot.m, scripts/plot/orient.m, scripts/plot/pareto.m,
scripts/plot/patch.m, scripts/plot/pbaspect.m, scripts/plot/pcolor.m,
scripts/plot/plot.m, scripts/plot/print.m,
scripts/plot/private/__add_default_menu__.m, scripts/plot/quiver.m,
scripts/plot/quiver3.m, scripts/plot/refreshdata.m, scripts/plot/saveas.m,
scripts/plot/scatter.m, scripts/plot/scatter3.m, scripts/plot/shading.m,
scripts/plot/shrinkfaces.m, scripts/plot/slice.m, scripts/plot/stem.m,
scripts/plot/stem3.m, scripts/plot/struct2hdl.m, scripts/plot/subplot.m,
scripts/plot/surf.m, scripts/plot/surfc.m, scripts/plot/surfl.m,
scripts/plot/tetramesh.m, scripts/plot/uigetfile.m, scripts/plot/uimenu.m,
scripts/plot/uiputfile.m, scripts/plot/waterfall.m, scripts/plot/whitebg.m,
scripts/plot/xlim.m, scripts/plot/ylim.m, scripts/plot/zlim.m,
scripts/polynomial/conv.m, scripts/polynomial/polyout.m,
scripts/polynomial/splinefit.m, scripts/set/ismember.m, scripts/set/powerset.m,
scripts/set/setdiff.m, scripts/set/union.m, scripts/set/unique.m,
scripts/signal/detrend.m, scripts/signal/filter2.m, scripts/signal/freqz.m,
scripts/signal/periodogram.m, scripts/signal/spectral_adf.m,
scripts/signal/spectral_xdf.m, scripts/sparse/eigs.m, scripts/sparse/svds.m,
scripts/specfun/legendre.m, scripts/special-matrix/gallery.m,
scripts/statistics/base/mean.m, scripts/statistics/base/moment.m,
scripts/statistics/tests/cor_test.m,
scripts/statistics/tests/kolmogorov_smirnov_test.m,
scripts/statistics/tests/kolmogorov_smirnov_test_2.m,
scripts/statistics/tests/kruskal_wallis_test.m,
scripts/statistics/tests/prop_test_2.m, scripts/statistics/tests/sign_test.m,
scripts/statistics/tests/t_test.m, scripts/statistics/tests/t_test_2.m,
scripts/statistics/tests/t_test_regression.m,
scripts/statistics/tests/u_test.m, scripts/statistics/tests/var_test.m,
scripts/statistics/tests/welch_test.m,
scripts/statistics/tests/wilcoxon_test.m, scripts/statistics/tests/z_test.m,
scripts/statistics/tests/z_test_2.m, scripts/strings/base2dec.m,
scripts/strings/index.m, scripts/strings/isstrprop.m,
scripts/strings/mat2str.m, scripts/strings/regexptranslate.m,
scripts/strings/rindex.m, scripts/strings/str2num.m, scripts/strings/strcat.m,
scripts/strings/strjust.m, scripts/strings/strmatch.m,
scripts/strings/validatestring.m, scripts/testfun/demo.m,
scripts/testfun/example.m, scripts/testfun/test.m, scripts/time/addtodate.m,
scripts/time/asctime.m, scripts/time/datestr.m, scripts/time/datetick.m,
scripts/time/weekday.m, scripts/ui/errordlg.m, scripts/ui/helpdlg.m,
scripts/ui/inputdlg.m, scripts/ui/listdlg.m, scripts/ui/msgbox.m,
scripts/ui/questdlg.m, scripts/ui/warndlg.m: Use new @qcode macro.
author | Rik <rik@octave.org> |
---|---|
date | Mon, 19 Aug 2013 20:46:38 -0700 |
parents | c2dbdeaa25df |
children |
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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 @qcode{"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) && columns (vp) == 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);