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1
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1 // tree-plot.cc -*- C++ -*- |
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2 /* |
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3 |
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1009
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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1315
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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21 |
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22 */ |
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23 |
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1297
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24 #if defined (__GNUG__) |
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25 #pragma implementation |
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26 #endif |
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27 |
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240
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28 #ifdef HAVE_CONFIG_H |
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1192
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29 #include <config.h> |
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1
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30 #endif |
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31 |
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1343
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32 #include <cstring> |
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33 |
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1350
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34 #include <fstream.h> |
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35 #include <iostream.h> |
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36 #include <strstream.h> |
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37 |
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38 #ifdef HAVE_UNISTD_H |
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524
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39 #include <sys/types.h> |
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40 #include <unistd.h> |
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41 #endif |
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1
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42 |
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1465
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43 #include <readline/tilde.h> |
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44 |
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524
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45 #include "SLStack.h" |
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46 #include "procstream.h" |
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47 |
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1352
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48 #include "defun.h" |
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49 #include "error.h" |
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50 #include "gripes.h" |
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51 #include "help.h" |
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52 #include "load-save.h" |
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584
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53 #include "tree-base.h" |
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54 #include "tree-cmd.h" |
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524
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55 #include "tree-const.h" |
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1352
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56 #include "tree-expr.h" |
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524
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57 #include "tree-plot.h" |
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1352
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58 #include "user-prefs.h" |
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1
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59 #include "utils.h" |
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60 |
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1358
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61 // The number of lines we've plotted so far. |
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735
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62 static int plot_line_count = 0; |
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1
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63 |
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64 // Is this a parametric plot? Makes a difference for 3D plotting. |
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735
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65 static int parametric_plot = 0; |
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1
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66 |
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943
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67 // The gnuplot terminal type. |
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68 static char *gnuplot_terminal_type = 0; |
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69 |
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478
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70 // Should the graph window be cleared before plotting the next line? |
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735
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71 static int clear_before_plotting = 1; |
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478
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72 |
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524
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73 // List of files to delete when we exit or crash. |
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74 static SLStack <char *> tmp_files; |
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75 |
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76 // Pipe to gnuplot. |
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1449
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77 static oprocstream *plot_stream = 0; |
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524
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78 |
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866
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79 // Use shortest possible abbreviations to minimize trouble caused by |
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80 // gnuplot's fixed-length command line buffer. |
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81 |
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82 #ifndef GNUPLOT_COMMAND_PLOT |
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83 #define GNUPLOT_COMMAND_PLOT "pl" |
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84 #endif |
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85 |
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86 #ifndef GNUPLOT_COMMAND_REPLOT |
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87 #define GNUPLOT_COMMAND_REPLOT "rep" |
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88 #endif |
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89 |
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90 #ifndef GNUPLOT_COMMAND_SPLOT |
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91 #define GNUPLOT_COMMAND_SPLOT "sp" |
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92 #endif |
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93 |
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94 #ifndef GNUPLOT_COMMAND_USING |
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95 #define GNUPLOT_COMMAND_USING "u" |
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96 #endif |
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97 |
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98 #ifndef GNUPLOT_COMMAND_WITH |
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99 #define GNUPLOT_COMMAND_WITH "w" |
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100 #endif |
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101 |
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102 #ifndef GNUPLOT_COMMAND_TITLE |
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103 #define GNUPLOT_COMMAND_TITLE "t" |
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104 #endif |
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105 |
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597
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106 static void |
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107 open_plot_stream (void) |
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108 { |
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109 static int initialized = 0; |
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110 |
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1449
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111 if (plot_stream && ! *plot_stream) |
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112 { |
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113 delete plot_stream; |
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114 plot_stream = 0; |
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115 } |
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116 |
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117 if (! plot_stream) |
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597
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118 { |
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943
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119 initialized = 0; |
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120 |
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597
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121 plot_line_count = 0; |
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122 |
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123 char *plot_prog = user_pref.gnuplot_binary; |
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124 if (plot_prog) |
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125 { |
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1449
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126 plot_stream = new oprocstream (plot_prog); |
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127 |
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128 if (plot_stream && ! *plot_stream) |
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129 { |
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130 delete plot_stream; |
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131 plot_stream = 0; |
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132 } |
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133 |
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134 if (! plot_stream) |
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597
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135 { |
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136 warning ("plot: unable to open pipe to `%s'", |
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137 plot_prog); |
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138 |
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139 if (strcmp (plot_prog, "gnuplot") != 0) |
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140 { |
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141 warning ("having trouble finding plotting program."); |
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142 warning ("trying again with `gnuplot'"); |
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143 goto last_chance; |
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144 } |
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145 } |
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146 } |
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147 else |
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148 { |
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149 last_chance: |
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150 |
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1449
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151 plot_stream = new oprocstream ("gnuplot"); |
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597
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152 |
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1449
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153 if (plot_stream && ! *plot_stream) |
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154 { |
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155 delete plot_stream; |
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156 plot_stream = 0; |
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157 } |
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158 |
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159 if (! plot_stream) |
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597
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160 error ("plot: unable to open pipe to `%s'", plot_prog); |
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161 } |
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162 } |
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163 |
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1449
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164 if (! error_state && plot_stream && *plot_stream && ! initialized) |
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597
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165 { |
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166 initialized = 1; |
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1449
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167 *plot_stream << "set data style lines\n"; |
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943
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168 |
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169 if (gnuplot_terminal_type) |
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1449
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170 *plot_stream << "set term " << gnuplot_terminal_type << "\n"; |
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597
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171 } |
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172 } |
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173 |
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174 static int |
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175 send_to_plot_stream (const char *cmd) |
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176 { |
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1358
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177 // From sighandlers.cc: |
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178 |
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597
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179 extern int pipe_handler_error_count; |
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180 |
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1449
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181 if (! (plot_stream && *plot_stream)) |
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597
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182 { |
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183 open_plot_stream (); |
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184 |
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185 if (error_state) |
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186 return -1; |
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187 } |
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188 |
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930
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189 int replot_len = strlen (GNUPLOT_COMMAND_REPLOT); |
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190 int splot_len = strlen (GNUPLOT_COMMAND_SPLOT); |
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191 int plot_len = strlen (GNUPLOT_COMMAND_PLOT); |
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192 |
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193 int is_replot = (strncmp (cmd, GNUPLOT_COMMAND_REPLOT, replot_len) == 0); |
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194 int is_splot = (strncmp (cmd, GNUPLOT_COMMAND_SPLOT, splot_len) == 0); |
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195 int is_plot = (strncmp (cmd, GNUPLOT_COMMAND_PLOT, plot_len) == 0); |
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661
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196 |
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197 if (plot_line_count == 0 && is_replot) |
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597
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198 error ("replot: no previous plot"); |
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199 else |
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200 { |
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1449
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201 *plot_stream << cmd; |
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930
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202 |
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661
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203 if (! (is_replot || is_splot || is_plot) |
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204 && plot_line_count > 0 |
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205 && user_pref.automatic_replot) |
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1449
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206 *plot_stream << GNUPLOT_COMMAND_REPLOT << "\n"; |
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930
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207 |
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1449
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208 plot_stream->flush (); |
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597
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209 pipe_handler_error_count = 0; |
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210 } |
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211 |
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212 return 0; |
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213 } |
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214 |
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581
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215 // Plotting, eh? |
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1
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216 |
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217 tree_plot_command::~tree_plot_command (void) |
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218 { |
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219 delete range; |
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220 delete plot_list; |
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221 } |
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222 |
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578
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223 void |
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224 tree_plot_command::eval (void) |
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1
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225 { |
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143
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226 if (error_state) |
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578
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227 return; |
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143
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228 |
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597
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229 open_plot_stream (); |
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230 |
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1
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231 ostrstream plot_buf; |
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232 |
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233 switch (ndim) |
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234 { |
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476
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235 case 1: |
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478
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236 if (plot_line_count == 0) |
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237 { |
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238 if (plot_list) |
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866
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239 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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240 else |
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241 { |
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242 ::error ("replot: must have something to plot"); |
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578
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243 return; |
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478
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244 } |
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245 } |
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246 else |
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866
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247 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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476
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248 break; |
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777
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249 |
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1
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250 case 2: |
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478
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251 if (clear_before_plotting || plot_line_count == 0) |
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252 { |
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253 plot_line_count = 0; |
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866
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254 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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255 } |
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256 else |
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930
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257 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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258 break; |
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777
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259 |
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1
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260 case 3: |
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930
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261 if (clear_before_plotting || plot_line_count == 0) |
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262 { |
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263 plot_line_count = 0; |
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264 plot_buf << GNUPLOT_COMMAND_SPLOT; |
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265 } |
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266 else |
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267 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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268 break; |
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777
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269 |
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1
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270 default: |
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771
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271 gripe_2_or_3_dim_plot (); |
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272 return; |
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1
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273 } |
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274 |
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524
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275 if (range) |
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478
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276 { |
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277 if (plot_line_count == 0) |
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278 range->print (ndim, plot_buf); |
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279 else |
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280 warning ("can't specify new plot ranges with `replot' or while\ |
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281 hold is on"); |
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282 } |
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1
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283 |
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191
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284 if (error_state) |
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578
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285 return; |
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191
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286 |
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591
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287 if (plot_list) |
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1
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288 { |
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591
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289 int status = plot_list->print (ndim, plot_buf); |
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578
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290 |
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771
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291 if (error_state || status < 0) |
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578
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292 return; |
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1
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293 } |
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294 |
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295 plot_buf << "\n" << ends; |
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296 |
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1358
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297 // Just testing... |
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298 // char *message = plot_buf.str (); |
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299 // cout << "[*]" << message << "[*]\n"; |
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1
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300 |
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301 if (parametric_plot && ndim == 2) |
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302 { |
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303 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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304 send_to_plot_stream ("set noparametric\n"); |
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305 char *message = plot_buf.str (); |
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306 send_to_plot_stream (message); |
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307 delete [] message; |
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308 send_to_plot_stream ("set parametric\n"); |
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309 } |
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310 else |
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311 { |
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312 char *message = plot_buf.str (); |
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313 send_to_plot_stream (message); |
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314 delete [] message; |
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315 } |
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316 } |
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317 |
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591
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318 void |
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319 tree_plot_command::print_code (ostream& os) |
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1
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320 { |
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591
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321 print_code_indent (os); |
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86
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322 |
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591
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323 switch (ndim) |
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1
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324 { |
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591
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325 case 1: |
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326 os << "replot"; |
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327 break; |
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777
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328 |
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591
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329 case 2: |
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330 os << "gplot"; |
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331 break; |
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777
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332 |
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591
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333 case 3: |
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334 os << "gsplot"; |
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335 break; |
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777
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336 |
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591
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337 default: |
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771
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338 os << "<unkown plot command>"; |
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591
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339 break; |
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1
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340 } |
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341 |
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591
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342 if (range) |
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343 range->print_code (os); |
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1
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344 |
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591
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345 if (plot_list) |
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346 plot_list->print_code (os); |
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1
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347 } |
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348 |
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578
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349 plot_limits::~plot_limits (void) |
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1
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350 { |
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351 delete x_range; |
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352 delete y_range; |
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353 delete z_range; |
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354 } |
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355 |
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356 void |
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578
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357 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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358 { |
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359 if (ndim == 2 || ndim == 3) |
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360 { |
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524
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361 if (x_range) |
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1
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362 x_range->print (plot_buf); |
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363 else |
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364 return; |
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365 |
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524
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366 if (y_range) |
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1
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367 y_range->print (plot_buf); |
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368 else |
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369 return; |
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370 } |
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371 |
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524
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372 if (ndim == 3 && z_range) |
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1
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373 z_range->print (plot_buf); |
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374 } |
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375 |
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591
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376 void |
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377 plot_limits::print_code (ostream& os) |
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378 { |
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379 if (x_range) |
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380 x_range->print_code (os); |
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381 |
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382 if (y_range) |
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383 y_range->print_code (os); |
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384 |
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385 if (z_range) |
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386 z_range->print_code (os); |
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387 } |
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388 |
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578
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389 plot_range::~plot_range (void) |
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1
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390 { |
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391 delete lower; |
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392 delete upper; |
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393 } |
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394 |
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395 void |
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578
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396 plot_range::print (ostrstream& plot_buf) |
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1
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397 { |
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398 plot_buf << " ["; |
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399 |
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524
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400 if (lower) |
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1
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401 { |
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402 tree_constant lower_val = lower->eval (0); |
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191
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403 if (error_state) |
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404 { |
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240
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405 ::error ("evaluating lower bound of plot range"); |
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191
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406 return; |
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407 } |
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408 else |
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409 { |
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629
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410 double lo = lower_val.double_value (); |
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191
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411 plot_buf << lo; |
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412 } |
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1
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413 } |
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414 |
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415 plot_buf << ":"; |
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416 |
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524
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417 if (upper) |
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1
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418 { |
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419 tree_constant upper_val = upper->eval (0); |
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191
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420 if (error_state) |
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421 { |
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240
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422 ::error ("evaluating upper bound of plot range"); |
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191
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423 return; |
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424 } |
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425 else |
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426 { |
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629
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427 double hi = upper_val.double_value (); |
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191
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428 plot_buf << hi; |
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429 } |
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1
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430 } |
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431 |
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432 plot_buf << "]"; |
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433 } |
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434 |
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591
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435 void |
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436 plot_range::print_code (ostream& os) |
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437 { |
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438 os << " ["; |
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439 |
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440 if (lower) |
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441 lower->print_code (os); |
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442 |
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443 os << ":"; |
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444 |
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445 if (upper) |
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446 upper->print_code (os); |
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447 |
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448 os << "]"; |
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449 } |
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450 |
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578
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451 subplot_using::~subplot_using (void) |
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1
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452 { |
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453 delete scanf_fmt; |
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454 } |
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455 |
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456 int |
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872
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457 subplot_using::eval (int ndim, int n_max) |
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1
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458 { |
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459 if ((ndim == 2 && qualifier_count > 4) |
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460 || (ndim == 3 && qualifier_count > 3)) |
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461 return -1; |
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462 |
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872
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463 if (qualifier_count > 0) |
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464 val.resize (qualifier_count); |
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465 |
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1
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466 for (int i = 0; i < qualifier_count; i++) |
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467 { |
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524
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468 if (x[i]) |
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1
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469 { |
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470 tree_constant tmp = x[i]->eval (0); |
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191
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471 if (error_state) |
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472 { |
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240
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473 ::error ("evaluating plot using command"); |
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191
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474 return -1; |
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475 } |
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476 |
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872
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477 double val_tmp; |
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1
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478 if (tmp.is_defined ()) |
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479 { |
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872
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480 val_tmp = tmp.double_value (); |
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1
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481 |
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872
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482 if (error_state) |
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483 return -1; |
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1
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484 |
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1086
|
485 if (xisnan (val_tmp)) |
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|
486 { |
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487 ::error ("NaN is invalid as a column specifier"); |
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488 return -1; |
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489 } |
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490 |
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872
|
491 int n = NINT (val_tmp); |
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1086
|
492 |
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322
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493 if (n < 1 || n_max > 0 && n > n_max) |
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1
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494 { |
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240
|
495 ::error ("using: column %d out of range", n); |
|
1
|
496 return -1; |
|
|
497 } |
|
|
498 else |
|
872
|
499 val.elem (i) = n; |
|
1
|
500 } |
|
|
501 else |
|
|
502 return -1; |
|
|
503 } |
|
|
504 else |
|
|
505 return -1; |
|
|
506 } |
|
|
507 |
|
524
|
508 if (scanf_fmt) |
|
1
|
509 warning ("ignoring scanf format in plot command"); |
|
|
510 |
|
872
|
511 return 0; |
|
|
512 } |
|
|
513 |
|
|
514 ColumnVector |
|
|
515 subplot_using::values (int ndim, int n_max) |
|
|
516 { |
|
|
517 int status = eval (ndim, n_max); |
|
|
518 |
|
1203
|
519 if (status < 0) |
|
872
|
520 return -1; |
|
|
521 |
|
|
522 return val; |
|
|
523 } |
|
|
524 |
|
|
525 int |
|
|
526 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
527 { |
|
|
528 int status = eval (ndim, n_max); |
|
|
529 |
|
1203
|
530 if (status < 0) |
|
872
|
531 return -1; |
|
|
532 |
|
|
533 for (int i = 0; i < qualifier_count; i++) |
|
|
534 { |
|
|
535 if (i == 0) |
|
|
536 plot_buf << " " << GNUPLOT_COMMAND_USING << " "; |
|
|
537 else |
|
|
538 plot_buf << ":"; |
|
|
539 |
|
|
540 plot_buf << val.elem (i); |
|
|
541 } |
|
|
542 |
|
1
|
543 return 0; |
|
|
544 } |
|
|
545 |
|
591
|
546 void |
|
|
547 subplot_using::print_code (ostream& os) |
|
|
548 { |
|
|
549 os << " using "; |
|
|
550 for (int i = 0; i < qualifier_count; i++) |
|
|
551 { |
|
|
552 if (i > 0) |
|
|
553 os << ":"; |
|
|
554 |
|
|
555 if (x[i]) |
|
|
556 x[i]->print_code (os); |
|
|
557 } |
|
|
558 } |
|
|
559 |
|
578
|
560 subplot_style::subplot_style (char *s) |
|
1
|
561 { |
|
|
562 style = strsave (s); |
|
524
|
563 linetype = 0; |
|
|
564 pointtype = 0; |
|
1
|
565 } |
|
|
566 |
|
578
|
567 subplot_style::subplot_style (char *s, tree_expression *lt) |
|
1
|
568 { |
|
|
569 style = strsave (s); |
|
|
570 linetype = lt; |
|
524
|
571 pointtype = 0; |
|
1
|
572 } |
|
|
573 |
|
578
|
574 subplot_style::subplot_style (char *s, tree_expression *lt, |
|
1622
|
575 tree_expression *pt) |
|
1
|
576 { |
|
|
577 style = strsave (s); |
|
|
578 linetype = lt; |
|
|
579 pointtype = pt; |
|
|
580 } |
|
|
581 |
|
578
|
582 subplot_style::~subplot_style (void) |
|
1622
|
583 { |
|
1
|
584 delete [] style; |
|
|
585 delete linetype; |
|
|
586 delete pointtype; |
|
|
587 } |
|
|
588 |
|
|
589 int |
|
578
|
590 subplot_style::print (ostrstream& plot_buf) |
|
1
|
591 { |
|
524
|
592 if (style) |
|
1
|
593 { |
|
866
|
594 plot_buf << " " << GNUPLOT_COMMAND_WITH << " " << style; |
|
1
|
595 |
|
524
|
596 if (linetype) |
|
1
|
597 { |
|
|
598 tree_constant tmp = linetype->eval (0); |
|
191
|
599 if (! error_state && tmp.is_defined ()) |
|
1
|
600 { |
|
629
|
601 double val = tmp.double_value (); |
|
1086
|
602 if (xisnan (val)) |
|
|
603 { |
|
|
604 ::error ("NaN is invalid a plotting line style"); |
|
|
605 return -1; |
|
|
606 } |
|
|
607 else |
|
|
608 plot_buf << " " << NINT (val); |
|
1
|
609 } |
|
|
610 else |
|
191
|
611 { |
|
240
|
612 ::error ("evaluating plot style command"); |
|
191
|
613 return -1; |
|
|
614 } |
|
1
|
615 } |
|
|
616 |
|
524
|
617 if (pointtype) |
|
1
|
618 { |
|
|
619 tree_constant tmp = pointtype->eval (0); |
|
191
|
620 if (! error_state && tmp.is_defined ()) |
|
1
|
621 { |
|
629
|
622 double val = tmp.double_value (); |
|
1086
|
623 if (xisnan (val)) |
|
|
624 { |
|
|
625 ::error ("NaN is invalid a plotting point style"); |
|
|
626 return -1; |
|
|
627 } |
|
|
628 else |
|
|
629 plot_buf << " " << NINT (val); |
|
1
|
630 } |
|
|
631 else |
|
191
|
632 { |
|
240
|
633 ::error ("evaluating plot style command"); |
|
191
|
634 return -1; |
|
|
635 } |
|
1
|
636 } |
|
|
637 } |
|
|
638 else |
|
|
639 return -1; |
|
|
640 |
|
|
641 return 0; |
|
|
642 } |
|
|
643 |
|
872
|
644 int |
|
|
645 subplot_style::errorbars (void) |
|
|
646 { |
|
|
647 return (style |
|
|
648 && (almost_match ("errorbars", style, 1, 0) |
|
|
649 || almost_match ("boxerrorbars", style, 5, 0))); |
|
|
650 } |
|
|
651 |
|
591
|
652 void |
|
|
653 subplot_style::print_code (ostream& os) |
|
|
654 { |
|
|
655 os << " with " << style; |
|
|
656 |
|
|
657 if (linetype) |
|
|
658 { |
|
|
659 os << " "; |
|
|
660 linetype->print_code (os); |
|
|
661 } |
|
|
662 |
|
|
663 if (pointtype) |
|
|
664 { |
|
|
665 os << " "; |
|
|
666 pointtype->print_code (os); |
|
|
667 } |
|
|
668 } |
|
|
669 |
|
878
|
670 subplot::~subplot (void) |
|
|
671 { |
|
|
672 delete plot_data; |
|
999
|
673 delete using_clause; |
|
|
674 delete title_clause; |
|
|
675 delete style_clause; |
|
878
|
676 } |
|
|
677 |
|
872
|
678 tree_constant |
|
|
679 subplot::extract_plot_data (int ndim, tree_constant& data) |
|
|
680 { |
|
|
681 tree_constant retval; |
|
|
682 |
|
999
|
683 if (using_clause) |
|
872
|
684 { |
|
999
|
685 ColumnVector val = using_clause->values (ndim); |
|
872
|
686 |
|
|
687 Octave_object args; |
|
|
688 args(1) = val; |
|
|
689 args(0) = tree_constant::magic_colon_t; |
|
|
690 |
|
|
691 Octave_object tmp = data.eval (0, 1, args); |
|
|
692 retval = tmp(0); |
|
|
693 |
|
|
694 if (error_state) |
|
|
695 return tree_constant (); |
|
|
696 } |
|
|
697 else |
|
|
698 { |
|
|
699 retval = data; |
|
|
700 } |
|
|
701 |
|
999
|
702 if (ndim == 2 && style_clause && style_clause->errorbars ()) |
|
872
|
703 { |
|
|
704 int nc = retval.columns (); |
|
|
705 |
|
|
706 if (nc < 3 || nc > 4) |
|
|
707 { |
|
|
708 error ("plots with errorbars require 3 or 4 columns of data"); |
|
|
709 error ("but %d were provided", nc); |
|
|
710 return tree_constant (); |
|
|
711 } |
|
|
712 } |
|
|
713 |
|
|
714 return retval; |
|
|
715 } |
|
|
716 |
|
591
|
717 int |
|
872
|
718 subplot::handle_plot_data (int ndim, ostrstream& plot_buf) |
|
591
|
719 { |
|
|
720 if (plot_data) |
|
|
721 { |
|
|
722 tree_constant data = plot_data->eval (0); |
|
872
|
723 |
|
591
|
724 if (! error_state && data.is_defined ()) |
|
|
725 { |
|
|
726 char *file = 0; |
|
610
|
727 if (data.is_string ()) |
|
591
|
728 { |
|
1358
|
729 // Should really try to look at data file to determine |
|
|
730 // n_max. Can't do much about other arbitrary gnuplot |
|
|
731 // commands though... |
|
872
|
732 |
|
|
733 int n_max = 0; |
|
|
734 |
|
591
|
735 file = tilde_expand (data.string_value ()); |
|
|
736 ifstream ftmp (file); |
|
|
737 if (ftmp) |
|
|
738 { |
|
|
739 plot_buf << " \"" << file << '"'; |
|
|
740 free (file); |
|
|
741 } |
|
|
742 else |
|
|
743 { |
|
|
744 free (file); |
|
|
745 file = 0; |
|
|
746 |
|
1358
|
747 // Opening as a file failed. Let's try passing it |
|
|
748 // along as a plot command. |
|
|
749 |
|
591
|
750 plot_buf << " " << data.string_value (); |
|
872
|
751 } |
|
|
752 |
|
999
|
753 if (using_clause) |
|
872
|
754 { |
|
999
|
755 int status = using_clause->print (ndim, n_max, plot_buf); |
|
872
|
756 if (status < 0) |
|
|
757 return -1; |
|
591
|
758 } |
|
|
759 } |
|
872
|
760 else |
|
591
|
761 { |
|
1358
|
762 // Eliminate the need for printing a using clause to |
|
|
763 // plot_buf. |
|
872
|
764 |
|
|
765 tree_constant tmp_data = extract_plot_data (ndim, data); |
|
|
766 |
|
|
767 if (tmp_data.is_defined ()) |
|
|
768 { |
|
|
769 switch (ndim) |
|
|
770 { |
|
|
771 case 2: |
|
|
772 file = save_in_tmp_file (tmp_data, ndim); |
|
|
773 break; |
|
777
|
774 |
|
872
|
775 case 3: |
|
|
776 file = save_in_tmp_file (tmp_data, ndim, |
|
|
777 parametric_plot); |
|
|
778 break; |
|
777
|
779 |
|
872
|
780 default: |
|
|
781 gripe_2_or_3_dim_plot (); |
|
|
782 break; |
|
|
783 } |
|
591
|
784 |
|
872
|
785 if (file) |
|
|
786 { |
|
|
787 mark_for_deletion (file); |
|
|
788 plot_buf << " \"" << file << '"'; |
|
|
789 } |
|
|
790 } |
|
591
|
791 } |
|
|
792 } |
|
|
793 else |
|
|
794 return -1; |
|
|
795 } |
|
|
796 else |
|
|
797 return -1; |
|
|
798 |
|
872
|
799 return 0; |
|
|
800 } |
|
591
|
801 |
|
872
|
802 int |
|
|
803 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
804 { |
|
|
805 int status = handle_plot_data (ndim, plot_buf); |
|
|
806 |
|
|
807 if (status < 0) |
|
|
808 return -1; |
|
591
|
809 |
|
999
|
810 if (title_clause) |
|
591
|
811 { |
|
999
|
812 tree_constant tmp = title_clause->eval (0); |
|
610
|
813 if (! error_state && tmp.is_string ()) |
|
866
|
814 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
815 << '"' << tmp.string_value () << '"'; |
|
591
|
816 else |
|
|
817 { |
|
|
818 warning ("line title must be a string"); |
|
866
|
819 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
820 << '"' << "line " << plot_line_count << '"'; |
|
591
|
821 } |
|
|
822 } |
|
|
823 else |
|
866
|
824 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
825 << '"' << "line " << plot_line_count << '"'; |
|
591
|
826 |
|
999
|
827 if (style_clause) |
|
591
|
828 { |
|
999
|
829 int status = style_clause->print (plot_buf); |
|
591
|
830 if (status < 0) |
|
|
831 return -1; |
|
|
832 } |
|
|
833 |
|
|
834 return 0; |
|
|
835 } |
|
|
836 |
|
|
837 void |
|
|
838 subplot::print_code (ostream& os) |
|
|
839 { |
|
|
840 if (plot_data) |
|
592
|
841 { |
|
|
842 os << " "; |
|
|
843 plot_data->print_code (os); |
|
|
844 } |
|
591
|
845 |
|
999
|
846 if (using_clause) |
|
|
847 using_clause->print_code (os); |
|
591
|
848 |
|
999
|
849 if (title_clause) |
|
|
850 title_clause->print_code (os); |
|
591
|
851 |
|
999
|
852 if (style_clause) |
|
|
853 style_clause->print_code (os); |
|
591
|
854 } |
|
|
855 |
|
1622
|
856 subplot_list::~subplot_list (void) |
|
|
857 { |
|
|
858 while (! empty ()) |
|
|
859 { |
|
|
860 subplot *t = remove_front (); |
|
|
861 delete t; |
|
|
862 } |
|
|
863 } |
|
|
864 |
|
883
|
865 int |
|
591
|
866 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
867 { |
|
|
868 int status = 0; |
|
|
869 |
|
|
870 for (Pix p = first (); p != 0; next (p)) |
|
|
871 { |
|
|
872 subplot *elt = this->operator () (p); |
|
|
873 |
|
|
874 plot_line_count++; |
|
|
875 |
|
|
876 if (p != first ()) |
|
|
877 plot_buf << ",\\\n "; |
|
|
878 |
|
|
879 status = elt->print (ndim, plot_buf); |
|
|
880 |
|
|
881 if (status < 0) |
|
|
882 break; |
|
|
883 } |
|
|
884 |
|
|
885 return status; |
|
|
886 } |
|
|
887 |
|
|
888 void |
|
|
889 subplot_list::print_code (ostream& os) |
|
|
890 { |
|
|
891 Pix p = first (); |
|
|
892 |
|
|
893 while (p) |
|
|
894 { |
|
|
895 subplot *elt = this->operator () (p); |
|
|
896 |
|
|
897 next (p); |
|
|
898 |
|
|
899 if (elt) |
|
|
900 { |
|
|
901 elt->print_code (os); |
|
|
902 |
|
|
903 if (p) |
|
592
|
904 os << ","; |
|
591
|
905 } |
|
|
906 } |
|
|
907 } |
|
|
908 |
|
524
|
909 char * |
|
|
910 save_in_tmp_file (tree_constant& t, int ndim, int parametric) |
|
|
911 { |
|
662
|
912 char *name = octave_tmp_file_name (); |
|
524
|
913 if (name) |
|
|
914 { |
|
|
915 ofstream file (name); |
|
|
916 if (file) |
|
|
917 { |
|
|
918 switch (ndim) |
|
|
919 { |
|
|
920 case 2: |
|
871
|
921 save_ascii_data (file, t, 0, 1); |
|
524
|
922 break; |
|
777
|
923 |
|
524
|
924 case 3: |
|
607
|
925 save_three_d (file, t, parametric); |
|
524
|
926 break; |
|
777
|
927 |
|
524
|
928 default: |
|
771
|
929 gripe_2_or_3_dim_plot (); |
|
524
|
930 break; |
|
|
931 } |
|
|
932 } |
|
|
933 else |
|
|
934 { |
|
|
935 error ("couldn't open temporary output file `%s'", name); |
|
|
936 name = 0; |
|
|
937 } |
|
|
938 } |
|
|
939 return name; |
|
|
940 } |
|
|
941 |
|
|
942 void |
|
|
943 mark_for_deletion (const char *filename) |
|
|
944 { |
|
|
945 char *tmp = strsave (filename); |
|
|
946 tmp_files.push (tmp); |
|
|
947 } |
|
|
948 |
|
|
949 void |
|
|
950 cleanup_tmp_files (void) |
|
|
951 { |
|
|
952 while (! tmp_files.empty ()) |
|
|
953 { |
|
|
954 char *filename = tmp_files.pop (); |
|
|
955 unlink (filename); |
|
|
956 delete [] filename; |
|
|
957 } |
|
|
958 } |
|
|
959 |
|
|
960 void |
|
|
961 close_plot_stream (void) |
|
|
962 { |
|
1449
|
963 if (plot_stream) |
|
|
964 { |
|
|
965 delete plot_stream; |
|
|
966 plot_stream = 0; |
|
|
967 } |
|
524
|
968 |
|
|
969 plot_line_count = 0; |
|
|
970 } |
|
|
971 |
|
1328
|
972 void |
|
|
973 do_external_plotter_cd (const char *newdir) |
|
|
974 { |
|
1449
|
975 if (plot_stream && *plot_stream) |
|
1328
|
976 { |
|
|
977 ostrstream plot_buf; |
|
|
978 plot_buf << "cd \"" << newdir << "\"\n" << ends; |
|
|
979 char *message = plot_buf.str (); |
|
|
980 send_to_plot_stream (message); |
|
|
981 delete [] message; |
|
|
982 } |
|
|
983 } |
|
|
984 |
|
1488
|
985 DEFUN ("clearplot", Fclearplot, Sclearplot, 00, |
|
883
|
986 "clearplot (): clear the plot window") |
|
|
987 { |
|
|
988 Octave_object retval; |
|
|
989 send_to_plot_stream ("clear\n"); |
|
930
|
990 |
|
1358
|
991 // XXX FIXME XXX -- instead of just clearing these things, it would |
|
|
992 // be nice if we could reset things to a user-specified default |
|
|
993 // state. |
|
930
|
994 |
|
|
995 send_to_plot_stream ("set title\n"); |
|
|
996 send_to_plot_stream ("set xlabel\n"); |
|
|
997 send_to_plot_stream ("set ylabel\n"); |
|
940
|
998 send_to_plot_stream ("set nogrid\n"); |
|
1000
|
999 send_to_plot_stream ("set nolabel\n"); |
|
940
|
1000 |
|
1358
|
1001 // This makes a simple `replot' not work after a `clearplot' command |
|
|
1002 // has been issued. |
|
940
|
1003 |
|
|
1004 plot_line_count = 0; |
|
930
|
1005 |
|
883
|
1006 return retval; |
|
|
1007 } |
|
|
1008 |
|
884
|
1009 DEFALIAS (clg, clearplot); |
|
|
1010 |
|
1488
|
1011 DEFUN ("closeplot", Fcloseplot, Scloseplot, 00, |
|
524
|
1012 "closeplot (): close the stream to plotter") |
|
|
1013 { |
|
|
1014 Octave_object retval; |
|
|
1015 close_plot_stream (); |
|
|
1016 return retval; |
|
|
1017 } |
|
|
1018 |
|
1488
|
1019 DEFUN_TEXT ("hold", Fhold, Shold, 10, |
|
524
|
1020 "hold [on|off]\n\ |
|
|
1021 \n\ |
|
|
1022 determine whether the plot window is cleared before the next line is\n\ |
|
|
1023 drawn. With no argument, toggle the current state.") |
|
|
1024 { |
|
|
1025 Octave_object retval; |
|
|
1026 |
|
|
1027 DEFINE_ARGV("hold"); |
|
|
1028 |
|
|
1029 switch (argc) |
|
|
1030 { |
|
|
1031 case 1: |
|
|
1032 clear_before_plotting = ! clear_before_plotting; |
|
|
1033 break; |
|
777
|
1034 |
|
524
|
1035 case 2: |
|
|
1036 if (strcasecmp (argv[1], "on") == 0) |
|
|
1037 clear_before_plotting = 0; |
|
|
1038 else if (strcasecmp (argv[1], "off") == 0) |
|
|
1039 clear_before_plotting = 1; |
|
|
1040 else |
|
|
1041 print_usage ("hold"); |
|
|
1042 break; |
|
777
|
1043 |
|
524
|
1044 default: |
|
|
1045 print_usage ("hold"); |
|
|
1046 break; |
|
|
1047 } |
|
|
1048 |
|
|
1049 DELETE_ARGV; |
|
|
1050 |
|
|
1051 return retval; |
|
|
1052 } |
|
|
1053 |
|
1488
|
1054 DEFUN ("ishold", Fishold, Sishold, 00, |
|
735
|
1055 "ishold\n\ |
|
|
1056 \n\ |
|
|
1057 Return 1 if hold is on, otherwise return 0.") |
|
|
1058 { |
|
|
1059 return (double) (! clear_before_plotting); |
|
|
1060 } |
|
|
1061 |
|
1488
|
1062 DEFUN ("purge_tmp_files", Fpurge_tmp_files, Spurge_tmp_files, 00, |
|
524
|
1063 "delete temporary data files used for plotting") |
|
|
1064 { |
|
|
1065 Octave_object retval; |
|
|
1066 cleanup_tmp_files (); |
|
|
1067 return retval; |
|
|
1068 } |
|
|
1069 |
|
1488
|
1070 DEFUN_TEXT ("set", Fset, Sset, 10, |
|
524
|
1071 "set [options]\n\ |
|
|
1072 \n\ |
|
|
1073 set plotting options") |
|
|
1074 { |
|
|
1075 Octave_object retval; |
|
|
1076 |
|
|
1077 DEFINE_ARGV("set"); |
|
|
1078 |
|
|
1079 ostrstream plot_buf; |
|
|
1080 |
|
|
1081 if (argc > 1) |
|
|
1082 { |
|
|
1083 if (almost_match ("parametric", argv[1], 3)) |
|
|
1084 parametric_plot = 1; |
|
|
1085 else if (almost_match ("noparametric", argv[1], 5)) |
|
|
1086 parametric_plot = 0; |
|
943
|
1087 else if (almost_match ("term", argv[1], 1)) |
|
|
1088 { |
|
|
1089 delete [] gnuplot_terminal_type; |
|
|
1090 ostrstream buf; |
|
|
1091 for (int i = 2; i < argc; i++) |
|
|
1092 buf << argv[i] << " "; |
|
|
1093 buf << "\n" << ends; |
|
|
1094 gnuplot_terminal_type = buf.str (); |
|
|
1095 } |
|
524
|
1096 } |
|
|
1097 |
|
|
1098 for (int i = 0; i < argc; i++) |
|
|
1099 plot_buf << argv[i] << " "; |
|
|
1100 |
|
|
1101 plot_buf << "\n" << ends; |
|
|
1102 |
|
|
1103 char *plot_command = plot_buf.str (); |
|
|
1104 send_to_plot_stream (plot_command); |
|
|
1105 |
|
|
1106 delete [] plot_command; |
|
|
1107 |
|
|
1108 DELETE_ARGV; |
|
|
1109 |
|
|
1110 return retval; |
|
|
1111 } |
|
|
1112 |
|
1488
|
1113 DEFUN_TEXT ("show", Fshow, Sshow, 10, |
|
524
|
1114 "show [options]\n\ |
|
|
1115 \n\ |
|
|
1116 show plotting options") |
|
|
1117 { |
|
|
1118 Octave_object retval; |
|
|
1119 |
|
|
1120 DEFINE_ARGV("show"); |
|
|
1121 |
|
|
1122 ostrstream plot_buf; |
|
|
1123 |
|
|
1124 for (int i = 0; i < argc; i++) |
|
|
1125 plot_buf << argv[i] << " "; |
|
|
1126 |
|
|
1127 plot_buf << "\n" << ends; |
|
|
1128 |
|
|
1129 char *plot_command = plot_buf.str (); |
|
|
1130 send_to_plot_stream (plot_command); |
|
|
1131 |
|
|
1132 delete [] plot_command; |
|
|
1133 |
|
|
1134 DELETE_ARGV; |
|
|
1135 |
|
|
1136 return retval; |
|
|
1137 } |
|
|
1138 |
|
1
|
1139 /* |
|
|
1140 ;;; Local Variables: *** |
|
|
1141 ;;; mode: C++ *** |
|
|
1142 ;;; page-delimiter: "^/\\*" *** |
|
|
1143 ;;; End: *** |
|
|
1144 */ |
