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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, 59 Temple Place - Suite 330, Boston, MA |
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18 ## 02111-1307, 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 nargs = nargin (); |
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29 |
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30 if (nargs >= 2) |
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31 |
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32 k = 1; |
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33 j = 1; |
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34 x = varargin{k++}; |
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35 nargs -= 2; |
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36 x_set = 1; |
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37 y_set = 0; |
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38 gp_cmd = "gplot"; |
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39 have_gp_cmd = false; |
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40 fmt = ""; |
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41 sep = ""; |
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42 |
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43 ## Gather arguments, decode format, gather plot strings, and plot lines. |
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44 |
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45 while (nargs-- > 0) |
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46 |
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47 new = varargin{k++}; |
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48 |
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49 if (j > 1) |
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50 sep = ",\\\n"; |
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51 endif |
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52 |
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53 if (isstr (new)) |
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54 if (! x_set) |
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55 error ("plot: no data to plot"); |
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56 endif |
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57 fmt = __pltopt__ (caller, new); |
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58 if (! y_set) |
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59 [data{j}, fmtstr] = __plt1__ (x, fmt); |
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60 else |
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61 [data{j}, fmtstr] = __plt2__ (x, y, fmt); |
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62 endif |
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63 if (iscell (data{j})) |
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64 for i = 1:length (data{j}) |
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65 gp_cmd = sprintf ("%s%s data{%d}{%d} %s", gp_cmd, sep, |
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66 j, i, fmtstr{i}); |
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67 sep = ",\\\n"; |
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68 have_gp_cmd = true; |
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69 endfor |
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70 else |
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71 gp_cmd = sprintf ("%s%s data{%d} %s", gp_cmd, sep, j++, fmtstr); |
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72 have_gp_cmd = true; |
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73 endif |
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74 x_set = 0; |
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75 y_set = 0; |
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76 elseif (x_set) |
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77 if (y_set) |
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78 [data{j}, fmtstr] = __plt2__ (x, y, fmt); |
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79 if (iscell (data{j})) |
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80 for i = 1:length (data{j}) |
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81 gp_cmd = sprintf ("%s%s data{%d}{%d} %s", gp_cmd, sep, |
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82 j, i, fmtstr{i}); |
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83 sep = ",\\\n"; |
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84 have_gp_cmd = true; |
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85 endfor |
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86 else |
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87 gp_cmd = sprintf ("%s%s data{%d} %s", gp_cmd, sep, j++, fmtstr); |
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88 have_gp_cmd = true; |
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89 endif |
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90 x = new; |
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91 y_set = 0; |
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92 else |
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93 y = new; |
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94 y_set = 1; |
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95 endif |
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96 else |
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97 x = new; |
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98 x_set = 1; |
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99 endif |
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100 |
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101 endwhile |
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102 |
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103 ## Handle last plot. |
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104 |
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105 if (x_set) |
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106 if (y_set) |
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107 [data{j}, fmtstr] = __plt2__ (x, y, fmt); |
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108 else |
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109 [data{j}, fmtstr] = __plt1__ (x, fmt); |
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110 endif |
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111 if (iscell (data{j})) |
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112 for i = 1:length (data{j}) |
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113 gp_cmd = sprintf ("%s%s data{%d}{%d} %s", gp_cmd, sep, |
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114 j, i, fmtstr{i}); |
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115 sep = ",\\\n"; |
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116 have_gp_cmd = true; |
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117 endfor |
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118 else |
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119 gp_cmd = sprintf ("%s%s data{%d} %s", gp_cmd, sep, j++, fmtstr); |
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120 have_gp_cmd = true; |
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121 endif |
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122 endif |
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123 |
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124 if (have_gp_cmd) |
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125 eval (gp_cmd); |
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126 endif |
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127 else |
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128 msg = sprintf ("%s (x)\n", caller); |
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129 msg = sprintf ("%s %s (x, y)\n", msg, caller); |
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130 msg = sprintf ("%s %s (x2, y1, x2, y2)\n", msg, caller); |
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131 msg = sprintf ("%s %s (x, y, fmt)", msg, caller); |
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132 usage (msg); |
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133 endif |
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134 |
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135 endfunction |
