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daspect.m: Overhaul function using modern coding practices. * scripts/plot/daspect.m: Overhaul function using modern coding practices.
author Rik <rik@octave.org>
date Fri, 02 Aug 2013 15:03:28 -0700
parents eaab03308c0b
children bc924baa2c4e
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1 ## Copyright (C) 2010-2012 Ben Abbott
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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{data_aspect_ratio} =} daspect ()
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21 ## @deftypefnx {Function File} {} daspect (@var{data_aspect_ratio})
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22 ## @deftypefnx {Function File} {} daspect (@var{mode})
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23 ## @deftypefnx {Function File} {@var{data_aspect_ratio_mode} =} daspect ("mode")
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24 ## @deftypefnx {Function File} {} daspect (@var{hax}, @dots{})
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25 ## Query or set the data aspect ratio of the current axes.
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26 ##
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27 ## The aspect ratio is a normalized 3-element vector representing the span of
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28 ## the x, y, and z-axis limits.
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29 ##
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30 ## @code{(daspect (@var{mode}))}
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31 ##
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32 ## Set the data aspect ratio mode of the current axes. @var{mode} is
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33 ## either "auto" or "manual".
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34 ##
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35 ## @code{daspect ("mode")}
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36 ##
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37 ## Return the data aspect ratio mode of the current axes.
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38 ##
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39 ## @code{daspect (@var{hax}, @dots{})}
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40 ##
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41 ## Operate on the axes in handle @var{hax} instead of the current axes.
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42 ##
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43 ## @seealso{axis, pbaspect, xlim, ylim, zlim}
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44 ## @end deftypefn
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45
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46 ## Author: Ben Abbott <bpabbott@mac.com>
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47 ## Created: 2010-01-26
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48
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49 function daratio = daspect (varargin)
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50
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51 ## Grab axes handle if present
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52 if (nargin > 0)
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53 if (isscalar (varargin{1}) && isaxes (varargin{1}))
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54 hax = varargin{1};
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55 varargin = varargin(2:end);
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56 else
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57 hax = gca ();
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58 endif
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59 else
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60 hax = gca ();
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61 endif
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62
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63 nargin = numel (varargin);
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64 if (nargin > 1)
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65 print_usage ();
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66 endif
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67
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68 if (nargin == 0)
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69 daratio = get (hax, "dataaspectratio");
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70 else
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71 arg = varargin{1};
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72 if (isreal (arg))
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73 if (numel (arg) == 2)
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74 set (hax, "dataaspectratio", [arg, 1]);
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75 elseif (numel (arg) == 3)
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76 set (hax, "dataaspectratio", arg);
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77 else
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78 error ("daspect: DATA_ASPECT_RATIO must be a 2 or 3 element vector");
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79 endif
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80 elseif (ischar (arg))
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81 arg = tolower (arg);
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82 switch (arg)
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83 case "auto"
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84 set (hax, "dataaspectratiomode", "auto");
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85 case "manual"
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86 set (hax, "dataaspectratiomode", "manual");
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87 case "mode"
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88 daratio = get (hax, "dataaspectratiomode");
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89 otherwise
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90 error ("daspect: Invalid mode <%s>", arg);
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91 endswitch
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92 else
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93 print_usage ();
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94 endif
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95 endif
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96
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97 endfunction
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98
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99
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100 %!demo
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101 %! clf;
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102 %! x = 0:0.01:4;
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103 %! plot (x,cos(x), x,sin(x));
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104 %! axis square;
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105 %! daspect ([1 1 1]);
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106 %! title ('square plot-box with axis limits [0, 4, -2, 2]');
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107
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108 %!demo
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109 %! clf;
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110 %! x = 0:0.01:4;
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111 %! plot (x,cos (x), x,sin (x));
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112 %! axis ([0 4 -1 1]);
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113 %! daspect ([2 1 1]);
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114 %! title ('square plot-box with axis limits [0, 4, -1, 1]');
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115
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116 %!demo
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117 %! clf;
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118 %! x = 0:0.01:4;
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119 %! plot (x,cos(x), x,sin(x));
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120 %! daspect ([1 2 1]);
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121 %! pbaspect ([2 1 1]);
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122 %! title ('2x1 plot box with axis limits [0, 4, -2, 2]');
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123
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124 %!demo
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125 %! clf;
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126 %! x = 0:0.01:4;
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127 %! plot (x,cos(x), x, sin(x));
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128 %! axis square;
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129 %! set (gca, 'activepositionproperty', 'position');
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130 %! daspect ([1 1 1]);
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131 %! title ('square plot-box with axis limits [0, 4, -2, 2]');
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133 %!demo
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parents: 14138
diff changeset
134 %! clf;
10931
a72d53df4fa6 Treatment of activepositionproperty for gnuplot.
Ben Abbott <bpabbott@mac.com>
parents: 10711
diff changeset
135 %! x = 0:0.01:4;
14237
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
136 %! plot (x,cos(x), x,sin(x));
11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc.
Rik <octave@nomad.inbox5.com>
parents: 14138
diff changeset
137 %! axis ([0 4 -1 1]);
14245
4506eade9f04 Use Matlab coding conventions for demos in plot/ directory.
Rik <octave@nomad.inbox5.com>
parents: 14237
diff changeset
138 %! set (gca, 'activepositionproperty', 'position');
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 %! daspect ([2 1 1]);
14245
4506eade9f04 Use Matlab coding conventions for demos in plot/ directory.
Rik <octave@nomad.inbox5.com>
parents: 14237
diff changeset
140 %! title ('square plot-box with axis limits [0, 4, -1, 1]');
10931
a72d53df4fa6 Treatment of activepositionproperty for gnuplot.
Ben Abbott <bpabbott@mac.com>
parents: 10711
diff changeset
141
17162
57312b5426cf daspect.m: Overhaul function using modern coding practices.
Rik <rik@octave.org>
parents: 17126
diff changeset
142 ## FIXME: need some input validation tests
57312b5426cf daspect.m: Overhaul function using modern coding practices.
Rik <rik@octave.org>
parents: 17126
diff changeset
143