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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} {} __plt__ (@code{caller}, @dots{}) |
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22 ## @end deftypefn |
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23 |
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24 ## Author: jwe |
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25 |
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26 function __plt__ (caller, varargin) |
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27 |
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28 __plot_globals__; |
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29 |
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30 __setup_plot__; |
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31 |
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32 nargs = nargin (); |
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33 |
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34 if (nargs > 1) |
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35 |
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36 k = 1; |
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37 j = __plot_data_offset__{__current_figure__}(__multiplot_xi__,__multiplot_yi__); |
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38 |
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39 x_set = false; |
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40 y_set = false; |
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41 |
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42 ## Gather arguments, decode format, gather plot strings, and plot lines. |
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43 |
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44 while (--nargs > 0 || x_set) |
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45 |
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46 if (nargs == 0) |
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47 ## Force the last plot when input variables run out. |
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48 next_arg = ""; |
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49 else |
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50 next_arg = varargin{k++}; |
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51 endif |
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52 |
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53 have_data = false; |
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54 |
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55 if (ischar (next_arg)) |
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56 if (x_set) |
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57 fmt = __pltopt__ (caller, next_arg); |
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58 if (y_set) |
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59 [tdata, tfmtstr] = __plt2__ (x, y, fmt); |
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60 else |
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61 [tdata, tfmtstr] = __plt1__ (x, fmt); |
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62 endif |
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63 if (! isempty (tdata)) |
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64 __plot_data__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}{j} = tdata; |
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65 fmtstr = tfmtstr; |
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66 have_data = true; |
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67 endif |
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68 x_set = false; |
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69 y_set = false; |
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70 else |
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71 error ("plot: no data to plot"); |
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72 endif |
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73 elseif (x_set) |
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74 if (y_set) |
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75 fmt = __pltopt__ (caller, ""); |
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76 [tdata, tfmtstr] = __plt2__ (x, y, fmt); |
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77 if (! isempty (tdata)) |
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78 __plot_data__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}{j} = tdata; |
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79 fmtstr = tfmtstr; |
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80 have_data = true; |
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81 endif |
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82 x = next_arg; |
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83 y_set = false; |
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84 else |
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85 y = next_arg; |
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86 y_set = true; |
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87 endif |
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88 else |
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89 x = next_arg; |
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90 x_set = true; |
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91 endif |
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92 |
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93 if (have_data) |
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94 if (iscell (__plot_data__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}{j})) |
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95 for i = 1:length (__plot_data__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}{j}) |
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96 __plot_command__{__current_figure__}{__multiplot_xi__,__multiplot_yi__} \ |
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97 = sprintf ("%s%s __plot_data__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}{%d}{%d} %s", |
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98 __plot_command__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}, |
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99 __plot_command_sep__, j, i, fmtstr{i}); |
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100 __plot_command_sep__ = ",\\\n"; |
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101 endfor |
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102 else |
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103 __plot_command__{__current_figure__}{__multiplot_xi__,__multiplot_yi__} \ |
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104 = sprintf ("%s%s __plot_data__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}{%d} %s", |
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105 __plot_command__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}, |
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106 __plot_command_sep__, j, fmtstr); |
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107 __plot_command_sep__ = ",\\\n"; |
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108 endif |
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109 j++; |
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110 endif |
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111 |
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112 endwhile |
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113 |
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114 __plot_data_offset__{__current_figure__}(__multiplot_xi__,__multiplot_yi__) = j; |
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115 |
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116 if (__multiplot_mode__) |
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117 __gnuplot_raw__ ("clear\n"); |
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118 endif |
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119 if (! strcmp (__plot_command__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}, "__gnuplot_plot__")) |
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120 eval (__plot_command__{__current_figure__}{__multiplot_xi__,__multiplot_yi__}); |
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121 endif |
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122 |
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123 else |
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124 msg = sprintf ("%s (y)\n", caller); |
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125 msg = sprintf ("%s %s (x, y, ...)\n", msg, caller); |
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126 msg = sprintf ("%s %s (x, y, fmt, ...)", msg, caller); |
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127 usage (msg); |
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128 endif |
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129 |
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130 endfunction |
