Mercurial > octave-nkf
view scripts/plot/draw/quiver3.m @ 20216:aa36fb998a4d stable
maint: Remove unnecessary whitespace at end of lines.
* libgui/Makefile.am, libgui/graphics/Canvas.cc,
libgui/graphics/EditControl.cc, libgui/graphics/Figure.cc,
libgui/graphics/MouseModeActionGroup.cc, libgui/graphics/annotation-dialog.cc,
libgui/graphics/annotation-dialog.h, libgui/graphics/gl-select.cc,
libgui/graphics/module.mk, libgui/kb-layouts/default.keytab,
libgui/kb-layouts/linux.keytab, libgui/kb-layouts/vt420pc.keytab,
libgui/src/m-editor/find-dialog.cc, libgui/src/main-window.cc,
libgui/src/octave-qt-link.cc, libgui/src/octave-qt-link.h,
libgui/src/shortcut-manager.h, libinterp/corefcn/error.cc,
libinterp/corefcn/find.cc, libinterp/corefcn/gl2ps-renderer.cc,
libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h,
libinterp/corefcn/octave-link.cc, libinterp/corefcn/quadcc.cc,
libinterp/corefcn/strfns.cc, libinterp/corefcn/syscalls.cc,
libinterp/corefcn/sysdep.cc, libinterp/corefcn/urlwrite.cc,
libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc,
libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/ccolamd.cc,
libinterp/dldfcn/colamd.cc, libinterp/octave-value/ov-bool-sparse.cc,
libinterp/octave-value/ov-classdef.cc, libinterp/octave-value/ov-re-sparse.cc,
libinterp/octave-value/ov-struct.cc, libinterp/parse-tree/pt-arg-list.cc,
scripts/audio/@audiorecorder/play.m, scripts/audio/wavwrite.m,
scripts/general/cart2sph.m, scripts/geometry/inpolygon.m,
scripts/gui/listdlg.m, scripts/gui/msgbox.m,
scripts/gui/private/message_dialog.m, scripts/help/get_first_help_sentence.m,
scripts/help/lookfor.m, scripts/image/imshow.m, scripts/io/strread.m,
scripts/java/javamem.m, scripts/miscellaneous/dir.m,
scripts/miscellaneous/edit.m, scripts/miscellaneous/genvarname.m,
scripts/miscellaneous/gzip.m, scripts/miscellaneous/private/__w2mpth__.m,
scripts/plot/appearance/annotation.m, scripts/plot/draw/colorbar.m,
scripts/plot/draw/quiver3.m, scripts/plot/util/hold.m,
scripts/plot/util/print.m, scripts/polynomial/mkpp.m,
scripts/polynomial/polyder.m, scripts/polynomial/spline.m,
scripts/polynomial/unmkpp.m, scripts/signal/arma_rnd.m, scripts/sparse/gplot.m,
scripts/statistics/tests/t_test.m,
scripts/statistics/tests/t_test_regression.m, scripts/strings/mat2str.m,
scripts/strings/strsplit.m, scripts/strings/strtrunc.m,
scripts/strings/untabify.m, scripts/testfun/assert.m:
maint: Remove unnecessary whitespace at end of lines.
author | Rik <rik@octave.org> |
---|---|
date | Tue, 12 May 2015 09:22:01 -0700 |
parents | 777f26aa8e3e |
children |
line wrap: on
line source
## Copyright (C) 2007-2015 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 {Function File} {} quiver3 (@var{u}, @var{v}, @var{w}) ## @deftypefnx {Function File} {} quiver3 (@var{x}, @var{y}, @var{z}, @var{u}, @var{v}, @var{w}) ## @deftypefnx {Function File} {} quiver3 (@dots{}, @var{s}) ## @deftypefnx {Function File} {} quiver3 (@dots{}, @var{style}) ## @deftypefnx {Function File} {} quiver3 (@dots{}, "filled") ## @deftypefnx {Function File} {} quiver3 (@var{hax}, @dots{}) ## @deftypefnx {Function File} {@var{h} =} quiver3 (@dots{}) ## ## Plot a 3-D vector field with arrows. ## ## Plot the (@var{u}, @var{v}, @var{w}) components of a vector field in ## an (@var{x}, @var{y}, @var{z}) meshgrid. If the grid is uniform then ## @var{x}, @var{y}, and @var{z} can be specified as vectors. ## ## If @var{x}, @var{y}, and @var{z} are undefined they are assumed to be ## @code{(1:@var{m}, 1:@var{n}, 1:@var{p})} where @code{[@var{m}, @var{n}] = ## size (@var{u})} and @code{@var{p} = max (size (@var{w}))}. ## ## The variable @var{s} is a scalar defining a scaling factor to use for ## the arrows of the field relative to the mesh spacing. A value of 0 ## disables all scaling. The default value is 0.9. ## ## The style to use for the plot can be defined with a line style @var{style} ## of the same format as the @code{plot} command. ## If a marker is specified then markers at the grid points of the vectors are ## drawn rather than arrows. If the argument @qcode{"filled"} is given then the ## markers are filled. ## ## 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 graphics handle to a quiver object. ## A quiver object regroups the components of the quiver plot (body, arrow, ## and marker), and allows them to be changed together. ## ## @example ## @group ## [x, y, z] = peaks (25); ## surf (x, y, z); ## hold on; ## [u, v, w] = surfnorm (x, y, z / 10); ## h = quiver3 (x, y, z, u, v, w); ## set (h, "maxheadsize", 0.33); ## @end group ## @end example ## ## @seealso{quiver, compass, feather, plot} ## @end deftypefn function h = quiver3 (varargin) [hax, varargin, nargin] = __plt_get_axis_arg__ ("quiver3", varargin{:}); if (nargin < 2) print_usage (); endif oldfig = []; if (! isempty (hax)) oldfig = get (0, "currentfigure"); endif unwind_protect hax = newplot (hax); htmp = __quiver__ (hax, true, varargin{:}); if (! ishold (hax)) set (hax, "view", [-37.5, 30], "box", "off", "xgrid", "on", "ygrid", "on", "zgrid", "on"); endif unwind_protect_cleanup if (! isempty (oldfig)) set (0, "currentfigure", oldfig); endif end_unwind_protect if (nargout > 0) h = htmp; endif endfunction %!demo %! clf; %! colormap ('default'); %! [x, y, z] = peaks (25); %! surf (x, y, z); %! hold on; %! [u, v, w] = surfnorm (x, y, z / 10); %! h = quiver3 (x, y, z, u, v, w); %! set (h, 'maxheadsize', 0.25); %! hold off; %! title ('quiver3 of surface normals to peaks() function'); %!demo %! clf; %! colormap ('default'); %! [x, y, z] = peaks (25); %! surf (x, y, z); %! hold on; %! [u, v, w] = surfnorm (x, y, z / 10); %! h = quiver3 (x, y, z, u, v, w); %! set (h, 'maxheadsize', 0.25); %! hold off; %! shading interp; %! title ({'quiver3 of surface normals to peaks() function'; ... %! 'shading "interp"'});