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annotate scripts/plot/appearance/daspect.m @ 28240:2fb684dc2ec2

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axis.m: Implement "fill" option for Matlab compatibility. * axis.m: Document that "fill" is a synonym for "normal". Place "vis3d" option in documentation table for modes which affect aspect ratio. Add strcmpi (opt, "fill") to decode opt and executed the same behavior as "normal".
author Rik <rik@octave.org>
date Fri, 24 Apr 2020 13:16:09 -0700
parents 9f9ac219896d
children 1379ebcb00c3 0a5b15007766
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1 ########################################################################
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2 ##
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3 ## Copyright (C) 2010-2020 The Octave Project Developers
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4 ##
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5 ## See the file COPYRIGHT.md in the top-level directory of this
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6 ## distribution or <https://octave.org/copyright/>.
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7 ##
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8 ## This file is part of Octave.
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9 ##
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10 ## Octave is free software: you can redistribute it and/or modify it
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11 ## under the terms of the GNU General Public License as published by
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12 ## the Free Software Foundation, either version 3 of the License, or
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13 ## (at your option) any later version.
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14 ##
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15 ## Octave is distributed in the hope that it will be useful, but
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16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ## GNU General Public License for more details.
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19 ##
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20 ## You should have received a copy of the GNU General Public License
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21 ## along with Octave; see the file COPYING. If not, see
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22 ## <https://www.gnu.org/licenses/>.
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23 ##
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24 ########################################################################
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25
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26 ## -*- texinfo -*-
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27 ## @deftypefn {} {@var{data_aspect_ratio} =} daspect ()
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28 ## @deftypefnx {} {} daspect (@var{data_aspect_ratio})
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29 ## @deftypefnx {} {} daspect (@var{mode})
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30 ## @deftypefnx {} {@var{data_aspect_ratio_mode} =} daspect ("mode")
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31 ## @deftypefnx {} {} daspect (@var{hax}, @dots{})
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32 ## Query or set the data aspect ratio of the current axes.
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33 ##
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34 ## The aspect ratio is a normalized 3-element vector representing the span of
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35 ## the x, y, and z-axis limits.
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36 ##
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37 ## @code{daspect (@var{mode})}
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38 ##
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39 ## Set the data aspect ratio mode of the current axes. @var{mode} is
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40 ## either @qcode{"auto"} or @qcode{"manual"}.
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41 ##
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42 ## @code{daspect (@qcode{"mode"})}
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43 ##
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44 ## Return the data aspect ratio mode of the current axes.
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45 ##
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46 ## @code{daspect (@var{hax}, @dots{})}
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47 ##
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48 ## Operate on the axes in handle @var{hax} instead of the current axes.
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49 ##
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50 ## @seealso{axis, pbaspect, xlim, ylim, zlim}
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51 ## @end deftypefn
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52
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53 function daratio = daspect (varargin)
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54
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55 ## Grab axes handle if present
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56 if (nargin > 0)
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57 if (isscalar (varargin{1}) && isaxes (varargin{1}))
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58 hax = varargin{1};
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59 varargin = varargin(2:end);
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60 else
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61 hax = gca ();
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62 endif
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63 else
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64 hax = gca ();
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65 endif
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66
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67 nargin = numel (varargin);
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68 if (nargin > 1)
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69 print_usage ();
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70 endif
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71
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72 if (nargin == 0)
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73 daratio = get (hax, "dataaspectratio");
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74 else
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75 arg = varargin{1};
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76 if (isnumeric (arg))
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77 if (numel (arg) == 2)
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78 set (hax, "dataaspectratio", [arg, 1]);
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79 elseif (numel (arg) == 3)
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80 set (hax, "dataaspectratio", arg);
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81 else
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82 error ("daspect: DATA_ASPECT_RATIO must be a 2 or 3 element vector");
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83 endif
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84 elseif (ischar (arg))
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85 arg = tolower (arg);
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86 switch (arg)
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87 case "auto"
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88 set (hax, "dataaspectratiomode", "auto");
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89 case "manual"
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90 set (hax, "dataaspectratiomode", "manual");
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91 case "mode"
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92 daratio = get (hax, "dataaspectratiomode");
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93 otherwise
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94 error ("daspect: Invalid MODE <%s>", arg);
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95 endswitch
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96 else
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97 print_usage ();
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98 endif
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99 endif
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100
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101 endfunction
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102
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103
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104 %!demo
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105 %! clf;
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106 %! x = 0:0.01:4;
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107 %! plot (x,cos(x), x,sin(x));
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108 %! axis square;
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109 %! daspect ([1 1 1]);
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110 %! title ("square plot box with axis limits [0, 4, -2, 2]");
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111
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112 %!demo
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113 %! clf;
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114 %! x = 0:0.01:4;
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115 %! plot (x,cos (x), x,sin (x));
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116 %! axis ([0 4 -1 1]);
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117 %! daspect ([2 1 1]);
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118 %! title ("square plot box with axis limits [0, 4, -1, 1]");
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119
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120 %!demo
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121 %! clf;
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122 %! x = 0:0.01:4;
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123 %! plot (x,cos(x), x,sin(x));
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124 %! daspect ([1 2 1]);
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125 %! pbaspect ([2 1 1]);
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126 %! title ("2x1 plot box with axis limits [0, 4, -2, 2]");
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127
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128 %!demo
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129 %! clf;
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130 %! x = 0:0.01:4;
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131 %! plot (x,cos(x), x, sin(x));
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132 %! axis square;
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133 %! set (gca, "activepositionproperty", "position");
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134 %! daspect ([1 1 1]);
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533c3c4059a3 Add titles to more of the graphic demos.
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135 %! title ("square plot box with axis limits [0, 4, -2, 2]");
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a72d53df4fa6 Treatment of activepositionproperty for gnuplot.
Ben Abbott <bpabbott@mac.com>
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136
a72d53df4fa6 Treatment of activepositionproperty for gnuplot.
Ben Abbott <bpabbott@mac.com>
parents: 10711
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137 %!demo
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138 %! clf;
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139 %! x = 0:0.01:4;
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140 %! plot (x,cos(x), x,sin(x));
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
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141 %! axis ([0 4 -1 1]);
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Rik <rik@octave.org>
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142 %! set (gca, "activepositionproperty", "position");
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11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
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143 %! daspect ([2 1 1]);
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Rik <rik@octave.org>
parents: 22302
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144 %! title ("square plot box with axis limits [0, 4, -1, 1]");
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Ben Abbott <bpabbott@mac.com>
parents: 10711
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145
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57312b5426cf daspect.m: Overhaul function using modern coding practices.
Rik <rik@octave.org>
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146 ## FIXME: need some input validation tests