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1 ## Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2004, 2005, |
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2 ## 2006, 2007 John W. Eaton |
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3 ## |
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4 ## This file is part of Octave. |
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5 ## |
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6 ## Octave is free software; you can redistribute it and/or modify it |
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7 ## under the terms of the GNU General Public License as published by |
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8 ## the Free Software Foundation; either version 3 of the License, or (at |
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9 ## your option) any later version. |
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10 ## |
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11 ## Octave is distributed in the hope that it will be useful, but |
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 ## General Public License for more details. |
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15 ## |
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16 ## You should have received a copy of the GNU General Public License |
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17 ## along with Octave; see the file COPYING. If not, see |
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18 ## <http://www.gnu.org/licenses/>. |
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19 |
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20 ## Undocumented internal function. |
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21 |
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22 ## @deftypefn {Function File} {} __pltopt__ (@var{caller}, @var{opt}) |
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23 ## |
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24 ## Decode plot option strings. |
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25 ## |
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26 ## @var{opt} can currently be some combination of the following: |
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27 ## |
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28 ## @table @code |
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29 ## @item "-" |
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30 ## For solid linestyle (default). |
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31 ## |
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32 ## @item "--" |
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33 ## For dashed line style. |
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34 ## |
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35 ## @item "-." |
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36 ## For linespoints plot style. |
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37 ## |
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38 ## @item ":" |
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39 ## For dots plot style. |
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40 ## |
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41 ## @item "r" |
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42 ## Red line color. |
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43 ## |
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44 ## @item "g" |
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45 ## Green line color. |
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46 ## |
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47 ## @item "b" |
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48 ## Blue line color. |
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49 ## |
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50 ## @item "c" |
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51 ## Cyan line color. |
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52 ## |
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53 ## @item "m" |
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54 ## Magenta line color. |
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55 ## |
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56 ## @item "y" |
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57 ## Yellow line color. |
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58 ## |
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59 ## @item "k" |
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60 ## Black line color. |
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61 ## |
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62 ## @item "w" |
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63 ## White line color. |
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64 ## |
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65 ## @item ";title;" |
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66 ## Here @code{"title"} is the label for the key. |
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67 ## |
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68 ## @item "+" |
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69 ## @itemx "o" |
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70 ## @itemx "*" |
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71 ## @itemx "." |
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72 ## @itemx "x" |
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73 ## @itemx "s" |
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74 ## @itemx "d" |
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75 ## @itemx "^" |
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76 ## @itemx "v" |
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77 ## @itemx ">" |
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78 ## @itemx "<" |
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79 ## @itemx "p" |
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80 ## @itemx "h" |
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81 ## Used in combination with the points or linespoints styles, set the point |
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82 ## style. |
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83 ## @end table |
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84 ## |
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85 ## The legend may be fixed to include the name of the variable |
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86 ## plotted in some future version of Octave. |
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87 |
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88 ## Author: jwe |
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89 |
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90 function [options, valid] = __pltopt__ (caller, opt, err_on_invalid) |
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91 |
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92 valid = true; |
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93 options = __default_plot_options__ (); |
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94 |
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95 if ((nargin == 2 || nargin == 3) && (nargout == 1 || nargout == 2)) |
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96 if (nargin == 2) |
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97 err_on_invalid = true; |
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98 endif |
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99 if (ischar (opt)) |
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100 nel = rows (opt); |
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101 elseif (iscellstr (opt)) |
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102 nel = numel (opt); |
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103 else |
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104 error ("__pltopt__: expecting argument to be character string or cell array of character strings"); |
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105 endif |
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106 if (ischar (opt)) |
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107 opt = cellstr (opt); |
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108 endif |
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109 for i = nel:-1:1 |
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110 [options(i), valid] = __pltopt1__ (caller, opt{i}, err_on_invalid); |
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111 if (! err_on_invalid && ! valid) |
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112 return; |
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113 endif |
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114 endfor |
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115 else |
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116 print_usage (); |
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117 endif |
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118 |
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119 endfunction |
