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annotate scripts/plot/shading.m @ 17182:c3c1ebfaa7dc

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maint: Use common indentation for switch statement. * scripts/general/interp1.m, scripts/geometry/delaunay.m, scripts/help/__unimplemented__.m, scripts/image/cmunique.m, scripts/miscellaneous/edit.m, scripts/optimization/fzero.m, scripts/optimization/sqp.m, scripts/plot/__gnuplot_drawnow__.m, scripts/plot/hidden.m, scripts/plot/legend.m, scripts/plot/print.m, scripts/plot/printd.m, scripts/plot/private/__contour__.m, scripts/plot/private/__fltk_print__.m, scripts/plot/private/__gnuplot_print__.m, scripts/plot/private/__go_draw_axes__.m, scripts/plot/private/__print_parse_opts__.m, scripts/signal/periodogram.m, scripts/sparse/bicg.m, test/slice.tst, test/switch.tst: Use common indentation for switch statement.
author Rik <rik@octave.org>
date Sun, 04 Aug 2013 15:11:34 -0700
parents b5d6314314fc
children bc924baa2c4e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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72c96de7a403 maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 2006-2012 Kai Habel
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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} {} shading (@var{type})
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21 ## @deftypefnx {Function File} {} shading (@var{hax}, @var{type})
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22 ## Set the shading of patch or surface graphic objects.
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23 ##
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24 ## Valid arguments for @var{type} are
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25 ##
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26 ## @table @asis
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27 ## @item "flat"
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28 ## Single colored patches with invisible edges.
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29 ##
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30 ## @item "faceted"
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31 ## Single colored patches with visible edges.
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32 ##
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33 ## @item "interp"
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34 ## Color between patch vertices are interpolated and the patch edges are
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35 ## invisible.
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36 ## @end table
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37 ##
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38 ## If the first argument @var{hax} is an axes handle, then plot into this axis,
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39 ## rather than the current axes returned by @code{gca}.
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40 ## @seealso{fill, mesh, patch, pcolor, surf, surface, hidden}
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41 ## @end deftypefn
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42
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43 ## Author: Kai Habel <kai.habel@gmx.de>
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44
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45 function shading (varargin)
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46
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47 [hax, varargin, nargin] = __plt_get_axis_arg__ ("shading", varargin{:});
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48
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49 if (nargin != 1)
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50 print_usage ();
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51 endif
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52
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53 mode = varargin{1};
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54
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55 if (isempty (hax))
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56 hax = gca ();
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57 endif
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58
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59 ## Find all patch and surface objects that are descendants of hax
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60 ## and which are not part of a contour plot hggroup.
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61 hlist = [];
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62 kids = get (hax, "children");
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63 while (! isempty (kids))
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64 types = get (kids, "type");
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65 hlist = [hlist; kids(strcmp(types, "patch"))];
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66 hlist = [hlist; kids(strcmp(types, "surface"))];
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67 parents = kids(strcmp (types, "axes"));
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68 hglist = kids(strcmp (types, "hggroup"));
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69 for i = 1 : numel (hglist)
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70 props = get (hglist(i));
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71 if (! isfield (props, "levelstep"))
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72 parents(end+1) = hglist(i);
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73 endif
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74 endfor
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75 kids = get (parents, "children");
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76 endwhile
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77
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78 ## FIXME: This is the old, simple code.
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79 ## Unfortunately, it also shades contour plots which is not desirable.
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80 ##hp = findobj (hax, "type", "patch");
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81 ##hs = findobj (hax, "type", "surface");
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82 ##hlist = [hp(:); hs(:)];
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83
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84 switch (lower (mode))
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85 case "flat"
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86 set (hlist, "facecolor", "flat");
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87 set (hlist, "edgecolor", "none");
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88 case "interp"
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89 set (hlist, "facecolor", "interp");
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90 set (hlist, "edgecolor", "none");
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91 case "faceted"
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92 set (hlist, "facecolor", "flat");
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93 set (hlist, "edgecolor", [0 0 0]);
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94 otherwise
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95 error ('shading: Invalid MODE "%s"', mode);
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96 endswitch
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97
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98 endfunction
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99
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100
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101 %!demo
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102 %! clf;
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103 %! colormap ('default');
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104 %! sombrero ();
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105 %! shading faceted;
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106 %! title ('shading ''faceted''');
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107
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108 %!demo
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109 %! clf;
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110 %! colormap ('default');
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111 %! sombrero ();
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112 %! shading flat;
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113 %! title ('shading ''flat''');
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114
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115 %!demo
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116 %! clf;
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117 %! colormap ('default');
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118 %! sombrero ();
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119 %! shading interp;
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120 %! title ('shading ''interp''');
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121
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122 %!demo
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123 %! clf;
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124 %! colormap ('default');
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125 %! pcolor (peaks ());
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126 %! shading faceted;
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127 %! title ('shading ''faceted''');
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128
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129 %!demo
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Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
130 %! clf;
14247
c4fa5e0b6193 test: Make surface demos reproducible by setting colormap to default at start of demo.
Rik <octave@nomad.inbox5.com>
parents: 14245
diff changeset
131 %! colormap ('default');
14237
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
132 %! pcolor (peaks ());
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
133 %! shading flat;
14245
4506eade9f04 Use Matlab coding conventions for demos in plot/ directory.
Rik <octave@nomad.inbox5.com>
parents: 14237
diff changeset
134 %! title ('shading ''flat''');
8765
cf2163418140 Trivial change to shading.m and surfl.m demos.
Ben Abbott <bpabbott@mac.com>
parents: 8746
diff changeset
135
cf2163418140 Trivial change to shading.m and surfl.m demos.
Ben Abbott <bpabbott@mac.com>
parents: 8746
diff changeset
136 %!demo
14237
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
137 %! clf;
14247
c4fa5e0b6193 test: Make surface demos reproducible by setting colormap to default at start of demo.
Rik <octave@nomad.inbox5.com>
parents: 14245
diff changeset
138 %! colormap ('default');
14237
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
139 %! pcolor (peaks ());
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
140 %! shading interp;
14245
4506eade9f04 Use Matlab coding conventions for demos in plot/ directory.
Rik <octave@nomad.inbox5.com>
parents: 14237
diff changeset
141 %! title ('shading ''interp''');
13967
9ff0273cd054 shading.m: Add demos for 'flat' option
Rik <octave@nomad.inbox5.com>
parents: 12437
diff changeset
142