Mercurial > octave
view scripts/plot/appearance/camup.m @ 30875:5d3faba0342e
doc: Ensure documentation lists output argument when it exists for all m-files.
For new users of Octave it is best to show explicit calling forms
in the documentation and to show a return argument when it exists.
* bp-table.cc, shift.m, accumarray.m, accumdim.m, bincoeff.m, bitcmp.m,
bitget.m, bitset.m, blkdiag.m, celldisp.m, cplxpair.m, dblquad.m, flip.m,
fliplr.m, flipud.m, idivide.m, int2str.m, interpft.m, logspace.m, num2str.m,
polyarea.m, postpad.m, prepad.m, randi.m, repmat.m, rng.m, rot90.m, rotdim.m,
structfun.m, triplequad.m, uibuttongroup.m, uicontrol.m, uipanel.m,
uipushtool.m, uitoggletool.m, uitoolbar.m, waitforbuttonpress.m, help.m,
__additional_help_message__.m, hsv.m, im2double.m, im2frame.m, javachk.m,
usejava.m, argnames.m, char.m, formula.m, inline.m, __vectorize__.m, findstr.m,
flipdim.m, strmatch.m, vectorize.m, commutation_matrix.m, cond.m, cross.m,
duplication_matrix.m, expm.m, orth.m, rank.m, rref.m, trace.m, vech.m, cast.m,
compare_versions.m, delete.m, dir.m, fileattrib.m, grabcode.m, gunzip.m,
inputname.m, license.m, list_primes.m, ls.m, mexext.m, movefile.m,
namelengthmax.m, nargoutchk.m, nthargout.m, substruct.m, swapbytes.m, ver.m,
verLessThan.m, what.m, fminunc.m, fsolve.m, fzero.m, optimget.m, __fdjac__.m,
matlabroot.m, savepath.m, campos.m, camroll.m, camtarget.m, camup.m, camva.m,
camzoom.m, clabel.m, diffuse.m, legend.m, orient.m, rticks.m, specular.m,
thetaticks.m, xlim.m, xtickangle.m, xticklabels.m, xticks.m, ylim.m,
ytickangle.m, yticklabels.m, yticks.m, zlim.m, ztickangle.m, zticklabels.m,
zticks.m, ellipsoid.m, isocolors.m, isonormals.m, stairs.m, surfnorm.m,
__actual_axis_position__.m, __pltopt__.m, close.m, graphics_toolkit.m, pan.m,
print.m, printd.m, __ghostscript__.m, __gnuplot_print__.m, __opengl_print__.m,
rotate3d.m, subplot.m, zoom.m, compan.m, conv.m, poly.m, polyaffine.m,
polyder.m, polyint.m, polyout.m, polyreduce.m, polyvalm.m, roots.m, prefdir.m,
prefsfile.m, profexplore.m, profexport.m, profshow.m, powerset.m, unique.m,
arch_rnd.m, arma_rnd.m, autoreg_matrix.m, bartlett.m, blackman.m, detrend.m,
durbinlevinson.m, fftconv.m, fftfilt.m, fftshift.m, fractdiff.m, hamming.m,
hanning.m, hurst.m, ifftshift.m, rectangle_lw.m, rectangle_sw.m, triangle_lw.m,
sinc.m, sinetone.m, sinewave.m, spectral_adf.m, spectral_xdf.m, spencer.m,
ilu.m, __sprand__.m, sprand.m, sprandn.m, sprandsym.m, treelayout.m, beta.m,
betainc.m, betaincinv.m, betaln.m, cosint.m, expint.m, factorial.m, gammainc.m,
gammaincinv.m, lcm.m, nthroot.m, perms.m, reallog.m, realpow.m, realsqrt.m,
sinint.m, hadamard.m, hankel.m, hilb.m, invhilb.m, magic.m, pascal.m, rosser.m,
toeplitz.m, vander.m, wilkinson.m, center.m, corr.m, cov.m, discrete_cdf.m,
discrete_inv.m, discrete_pdf.m, discrete_rnd.m, empirical_cdf.m,
empirical_inv.m, empirical_pdf.m, empirical_rnd.m, kendall.m, kurtosis.m,
mad.m, mean.m, meansq.m, median.m, mode.m, moment.m, range.m, ranks.m,
run_count.m, skewness.m, spearman.m, statistics.m, std.m, base2dec.m,
bin2dec.m, blanks.m, cstrcat.m, deblank.m, dec2base.m, dec2bin.m, dec2hex.m,
hex2dec.m, index.m, regexptranslate.m, rindex.m, strcat.m, strjust.m,
strtrim.m, strtrunc.m, substr.m, untabify.m, __have_feature__.m,
__prog_output_assert__.m, __run_test_suite__.m, example.m, fail.m, asctime.m,
calendar.m, ctime.m, date.m, etime.m:
Add return arguments to @deftypefn macros where they were missing. Rename
variables in functions (particularly generic "retval") to match documentation.
Rename some return variables for (hopefully) better clarity (e.g., 'ax' to 'hax'
to indicate it is a graphics handle to an axes object).
author | Rik <rik@octave.org> |
---|---|
date | Wed, 30 Mar 2022 20:40:27 -0700 |
parents | 796f54d4ddbf |
children | 597f3ee61a48 |
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######################################################################## ## ## Copyright (C) 2016-2022 The Octave Project Developers ## ## See the file COPYRIGHT.md in the top-level directory of this ## distribution or <https://octave.org/copyright/>. ## ## 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 ## <https://www.gnu.org/licenses/>. ## ######################################################################## ## -*- texinfo -*- ## @deftypefn {} {@var{up} =} camup () ## @deftypefnx {} {} camup ([@var{x} @var{y} @var{z}]) ## @deftypefnx {} {@var{mode} =} camup ("mode") ## @deftypefnx {} {} camup (@var{mode}) ## @deftypefnx {} {} camup (@var{hax}, @dots{}) ## Get or set the camera up vector. ## ## By default, the camera is oriented so that ``up'' corresponds to the ## positive z-axis: ## ## @example ## @group ## hf = figure (); ## sphere (36) ## v = camup () ## @result{} v = ## 0 0 1 ## @end group ## @end example ## ## Specifying a new ``up vector'' rolls the camera and sets the mode to manual: ## ## @example ## @group ## camup ([1 1 0]) ## camup () ## @result{} 1 1 0 ## camup ("mode") ## @result{} manual ## @end group ## @end example ## ## Modifying the up vector does not modify the camera target ## (@pxref{XREFcamtarget,,@code{camtarget}}). Thus, the camera up vector might ## not be orthogonal to the direction of the camera's view: ## ## @example ## @group ## camup ([1 2 3]) ## dot (camup (), camtarget () - campos ()) ## @result{} 6... ## @end group ## @end example ## ## A consequence is that ``pulling back'' on the up vector does not pitch the ## camera view (as that would require changing the target). Setting the up ## vector is thus typically used only to roll the camera. A more intuitive ## command for this purpose is @ref{XREFcamroll,,@code{camroll}}. ## ## Finally, we can reset the up vector to automatic mode: ## ## @example ## @group ## camup ("auto") ## camup () ## @result{} 0 0 1 ## close (hf) ## @end group ## @end example ## ## By default, these commands affect the current axis; alternatively, an axis ## can be specified by the optional argument @var{hax}. ## ## @seealso{campos, camtarget, camva} ## @end deftypefn function up = camup (varargin) [hax, varargin, nargin] = __plt_get_axis_arg__ ("camup", varargin{:}); if (nargin > 1) print_usage (); endif if (isempty (hax)) hax = gca (); else hax = hax(1); endif prop = "cameraupvector"; if (nargin == 0) up = get (hax, prop); elseif (nargin == 1 && isnumeric (varargin{1}) && numel (varargin{1}) == 3) set (hax, prop, varargin{1}); elseif (nargin == 1 && ischar (varargin{1})) s = varargin{1}; if (strcmp (s, "mode")) up = get (hax, [prop "mode"]); else set (hax, [prop "mode"], s); endif else print_usage (); endif endfunction %!demo %! clf; %! sphere (); %! title ("camup() demo #1"); %! ## what direction is "up" for the camera? %! x1 = camup () %! ## re-orient the camera with a new up-vector %! camup ([1 0 0]); %! x2 = camup () %!test %! hf = figure ("visible", "off"); %! unwind_protect %! sphere (); %! x = camup (); %! camup ([1 2 3]); %! y = camup (); %! assert (y, [1 2 3]); %! camup (x); %! x2 = camup (); %! assert (x, x2); %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect %!test %! hf = figure ("visible", "off"); %! unwind_protect %! sphere (); %! p_orig = camup (); %! m = camup ("mode"); %! assert (strcmp (m, "auto")); %! %! camup ([1 2 3]); %! m = camup ("mode"); %! assert (strcmp (m, "manual")); %! %! camup ("auto"); %! p = camup (); %! assert (p, p_orig); %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect ## test hax input by creating another axis %!test %! hf = figure ("visible", "off"); %! unwind_protect %! subplot (1, 2, 1); sphere (); hax1 = gca (); %! subplot (1, 2, 2); peaks (); hax2 = gca (); %! camup (hax1, [1 0 0]); %! subplot (1, 2, 1); %! x = camup (); %! z = camup (hax2); %! subplot (1, 2, 2); %! y = camup (); %! assert (x, [1 0 0]); %! assert (norm (y - [1 0 0]) > 0.1); %! assert (y, z); %! unwind_protect_cleanup %! close (hf); %! end_unwind_protect ## Test input validation %!error <Invalid call> camup (1, 2) %!error <invalid value> %! hf = figure ("visible", "off"); %! unwind_protect %! camup ("mod") %! unwind_protect_cleanup %! delete (hf); %! end_unwind_protect