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compass.m: Overhaul function. * scripts/plot/compass.m: Reduce arrowhead to 20% of body length. Recode input validation to be simpler.
author Rik <rik@octave.org>
date Thu, 19 Sep 2013 13:48:54 -0700
parents bc924baa2c4e
children 9e4e24a0a118
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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72c96de7a403 maint: update copyright notices for 2012
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1 ## Copyright (C) 2007-2012 David Bateman
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 3 of the License, or (at
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8 ## your option) any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## -*- texinfo -*-
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20 ## @deftypefn {Function File} {@var{xlimits} =} xlim ()
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21 ## @deftypefnx {Function File} {@var{xmode} =} xlim ("mode")
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22 ## @deftypefnx {Function File} {} xlim ([@var{x_lo} @var{x_hi}])
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23 ## @deftypefnx {Function File} {} xlim ("auto")
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24 ## @deftypefnx {Function File} {} xlim ("manual")
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25 ## @deftypefnx {Function File} {} xlim (@var{hax}, @dots{})
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26 ## Query or set the limits of the x-axis of the current plot.
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27 ##
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28 ## Called without arguments @code{xlim} returns the x-axis limits of the
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29 ## current plot. With the input query @qcode{"mode"}, return the current
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30 ## x-limit calculation mode which is either @qcode{"auto"} or
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31 ## @qcode{"manual"}.
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32 ##
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33 ## If passed a 2-element vector [@var{x_lo} @var{x_hi}], the limits of the
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34 ## x-axis are set to these values.
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35 ##
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36 ## The current plotting mode can be set by passing either @qcode{"auto"} or
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37 ## @qcode{"manual"} as the argument.
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38 ##
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39 ## If the first argument @var{hax} is an axes handle, then operate on
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40 ## this axis rather than the current axes returned by @code{gca}.
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41 ## @seealso{ylim, zlim, axis, set, get, gca}
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42 ## @end deftypefn
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43
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44 function retval = xlim (varargin)
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45 ret = __axes_limits__ ("xlim", varargin{:});
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46
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47 if (! isempty (ret))
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48 retval = ret;
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49 endif
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50 endfunction
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51
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53 %!demo
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54 %! clf;
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55 %! line ();
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56 %! xlim ([0.2, 0.8]);
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57 %! title ('xlim is [0.2, 0.8]');
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58 %! assert (xlim (), [0.2, 0.8]);
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59
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60 %!demo
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61 %! clf;
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62 %! line ();
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63 %! xlim ('auto');
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64 %! title ('xlim is auto');
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65 %! assert (xlim ('mode'), 'auto');
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67 %!demo
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68 %! clf;
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69 %! plot3 ([0,1], [0,1], [0,1]);
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70 %! xlim ([0.2, 0.8]);
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71 %! title ('xlim is [0.2, 0.8]');
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72 %! assert (xlim (), [0.2, 0.8]);
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73
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74 %!demo
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75 %! clf;
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76 %! plot3 ([0,1], [0,1], [0,1]);
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77 %! xlim ('auto');
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78 %! title ('xlim is auto');
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79 %! assert (xlim ('mode'), 'auto');
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80
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81 %!test
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82 %! hf = figure ("visible", "off");
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83 %! unwind_protect
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84 %! plot3 ([0,1], [0,1], [0,1]);
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85 %! xlim ([0, 1.1]);
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86 %! assert (get (gca, "xlim"), [0, 1.1], eps);
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87 %! assert (xlim ("mode"), "manual");
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88 %! unwind_protect_cleanup
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89 %! close (hf);
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90 %! end_unwind_protect
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91
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92 %!test
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93 %! hf = figure ("visible", "off");
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94 %! unwind_protect
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95 %! h = plot3 ([0,1.1], [0,1], [0, 1]);
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96 %! assert (get (gca, "xlim"), [0, 1.4], eps);
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97 %! assert (xlim ("mode"), "auto");
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98 %! unwind_protect_cleanup
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99 %! close (hf);
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100 %! end_unwind_protect
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101