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1 ## Copyright (C) 1996, 1997 John W. Eaton |
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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 2, or (at your option) |
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8 ## 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, write to the Free |
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17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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18 ## 02110-1301, USA. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} __pltopt__ (@var{caller}, @var{opt}) |
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22 ## Decode plot option strings. |
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23 ## |
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24 ## If @var{opt} is a valid option string, return a string of the form |
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25 ## @code{"w l 2"} ("with lines 2"). Uses abbreviations for the options |
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26 ## to avoid overrunning gnuplot's command line buffer unnecessarily. |
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27 ## |
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28 ## @var{opt} can currently be some combination of the following: |
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29 ## |
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30 ## @table @code |
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31 ## @item "-" |
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32 ## For lines plot style (default). |
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33 ## |
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34 ## @item "." |
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35 ## For dots plot style. |
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36 ## |
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37 ## @item "@@" |
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38 ## For points plot style. |
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39 ## |
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40 ## @item "-@@" |
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41 ## For linespoints plot style. |
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42 ## |
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43 ## @item "^" |
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44 ## For impulses plot style. |
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45 ## |
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46 ## @item "L" |
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47 ## For steps plot style. |
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48 ## |
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49 ## @item "#" |
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50 ## For boxes plot style. |
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51 ## |
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52 ## @item "~" |
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53 ## For yerrorbars plot style. |
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54 ## |
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55 ## @item ">" |
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56 ## For xerrorbars plot style. |
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57 ## |
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58 ## @item "~>" |
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59 ## For xyerrorbars plot style. |
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60 ## |
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61 ## @item "#~" |
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62 ## For boxerrorbars plot style. |
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63 ## |
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64 ## @item "#~>" |
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65 ## For boxxyerrorbars plot style. |
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66 ## |
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67 ## @item "n" |
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68 ## With @code{n} in 1-6 (wraps at 8), plot color |
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69 ## |
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70 ## @item "nm" |
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71 ## With @code{m} in 1-6 (wraps at 6), point style (only valid for @code{"@@"} or |
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72 ## @code{"-@@"}) |
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73 ## |
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74 ## @item @var{c} |
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75 ## Where @var{c} is one of @code{"r"}, @code{"g"}, @code{"b"}, @code{"m"}, |
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76 ## @code{"c"}, or @code{"w"} colors. |
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77 ## |
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78 ## @item ";title;" |
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79 ## Here @code{"title"} is the label for the key. |
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80 ## |
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81 ## @item + |
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82 ## @itemx * |
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83 ## @itemx o |
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84 ## @itemx x |
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85 ## Used in combination with the points or linespoints styles, set the point |
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86 ## style. |
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87 ## @end table |
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88 ## |
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89 ## The legend may be fixed to include the name of the variable |
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90 ## plotted in some future version of Octave. |
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91 ## |
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92 ## The colors, line styles, and point styles have the following |
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93 ## meanings for X11 and Postscript terminals under Gnuplot 3.6. |
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94 ## |
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95 ## @example |
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96 ## Number ------ Color ------- Line Style ---- Points Style ---- |
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97 ## x11 postscript postscript x11 postscript |
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98 ## ===================================================================== |
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99 ## 1 red green solid "o" "+" |
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100 ## 2 green blue long dash "+" "x" |
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101 ## 3 blue red short dash square "*" |
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102 ## 4 magenta magenta dotted "x" open square |
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103 ## 5 cyan cyan dot long dash triangle filled square |
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104 ## 6 brown yellow dot short dash "*" "o" |
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105 ## @end example |
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106 ## @seealso{__pltopt1__} |
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107 ## @end deftypefn |
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108 |
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109 ## Author: jwe |
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110 |
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111 function options = __pltopt__ (caller, opt) |
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112 |
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113 if (nargin == 2 && nargout == 1) |
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114 if (ischar (opt)) |
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115 nel = rows (opt); |
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116 elseif (iscellstr (opt)) |
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117 nel = numel (opt); |
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118 else |
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119 error ("__pltopt__: expecting argument to be character string or cell array of character strings"); |
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120 endif |
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121 if (ischar (opt)) |
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122 opt = cellstr (opt); |
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123 endif |
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124 for i = nel:-1:1 |
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125 options(i) = __pltopt1__ (caller, opt{i}); |
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126 endfor |
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127 else |
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128 print_usage (); |
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129 endif |
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130 |
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131 endfunction |
