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1742
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1 // pt-plot.cc -*- C++ -*- |
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1
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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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1728
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34 #include <string> |
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35 |
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1350
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36 #include <fstream.h> |
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37 #include <iostream.h> |
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38 #include <strstream.h> |
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39 |
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40 #ifdef HAVE_UNISTD_H |
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524
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41 #include <sys/types.h> |
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42 #include <unistd.h> |
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43 #endif |
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1
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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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1742
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53 #include "mappers.h" |
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54 #include "oct-obj.h" |
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1690
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55 #include "sysdep.h" |
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1742
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56 #include "pt-cmd.h" |
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57 #include "pt-const.h" |
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58 #include "pt-exp.h" |
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59 #include "pt-plot.h" |
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1352
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60 #include "user-prefs.h" |
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1
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61 #include "utils.h" |
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62 |
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1358
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63 // The number of lines we've plotted so far. |
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735
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64 static int plot_line_count = 0; |
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1
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65 |
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66 // Is this a parametric plot? Makes a difference for 3D plotting. |
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735
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67 static int parametric_plot = 0; |
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1
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68 |
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943
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69 // The gnuplot terminal type. |
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70 static char *gnuplot_terminal_type = 0; |
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71 |
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478
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72 // Should the graph window be cleared before plotting the next line? |
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735
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73 static int clear_before_plotting = 1; |
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478
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74 |
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524
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75 // List of files to delete when we exit or crash. |
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76 static SLStack <char *> tmp_files; |
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77 |
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78 // Pipe to gnuplot. |
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1449
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79 static oprocstream *plot_stream = 0; |
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524
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80 |
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866
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81 // Use shortest possible abbreviations to minimize trouble caused by |
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82 // gnuplot's fixed-length command line buffer. |
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83 |
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84 #ifndef GNUPLOT_COMMAND_PLOT |
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85 #define GNUPLOT_COMMAND_PLOT "pl" |
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86 #endif |
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87 |
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88 #ifndef GNUPLOT_COMMAND_REPLOT |
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89 #define GNUPLOT_COMMAND_REPLOT "rep" |
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90 #endif |
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91 |
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92 #ifndef GNUPLOT_COMMAND_SPLOT |
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93 #define GNUPLOT_COMMAND_SPLOT "sp" |
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94 #endif |
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95 |
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96 #ifndef GNUPLOT_COMMAND_USING |
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97 #define GNUPLOT_COMMAND_USING "u" |
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98 #endif |
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99 |
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100 #ifndef GNUPLOT_COMMAND_WITH |
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101 #define GNUPLOT_COMMAND_WITH "w" |
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102 #endif |
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103 |
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104 #ifndef GNUPLOT_COMMAND_TITLE |
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105 #define GNUPLOT_COMMAND_TITLE "t" |
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106 #endif |
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107 |
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597
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108 static void |
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109 open_plot_stream (void) |
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110 { |
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111 static int initialized = 0; |
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112 |
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1449
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113 if (plot_stream && ! *plot_stream) |
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114 { |
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115 delete plot_stream; |
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116 plot_stream = 0; |
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117 } |
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118 |
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119 if (! plot_stream) |
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597
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120 { |
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943
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121 initialized = 0; |
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122 |
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597
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123 plot_line_count = 0; |
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124 |
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125 char *plot_prog = user_pref.gnuplot_binary; |
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126 if (plot_prog) |
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127 { |
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1449
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128 plot_stream = new oprocstream (plot_prog); |
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129 |
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130 if (plot_stream && ! *plot_stream) |
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131 { |
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132 delete plot_stream; |
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133 plot_stream = 0; |
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134 } |
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135 |
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136 if (! plot_stream) |
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597
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137 { |
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138 warning ("plot: unable to open pipe to `%s'", |
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139 plot_prog); |
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140 |
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141 if (strcmp (plot_prog, "gnuplot") != 0) |
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142 { |
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143 warning ("having trouble finding plotting program."); |
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144 warning ("trying again with `gnuplot'"); |
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145 goto last_chance; |
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146 } |
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147 } |
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148 } |
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149 else |
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150 { |
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151 last_chance: |
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152 |
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1449
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153 plot_stream = new oprocstream ("gnuplot"); |
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597
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154 |
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1449
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155 if (plot_stream && ! *plot_stream) |
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156 { |
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157 delete plot_stream; |
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158 plot_stream = 0; |
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159 } |
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160 |
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161 if (! plot_stream) |
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597
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162 error ("plot: unable to open pipe to `%s'", plot_prog); |
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163 } |
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164 } |
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165 |
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1449
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166 if (! error_state && plot_stream && *plot_stream && ! initialized) |
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597
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167 { |
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168 initialized = 1; |
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1449
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169 *plot_stream << "set data style lines\n"; |
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943
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170 |
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171 if (gnuplot_terminal_type) |
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1449
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172 *plot_stream << "set term " << gnuplot_terminal_type << "\n"; |
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597
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173 } |
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174 } |
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175 |
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176 static int |
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177 send_to_plot_stream (const char *cmd) |
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178 { |
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1358
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179 // From sighandlers.cc: |
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180 |
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597
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181 extern int pipe_handler_error_count; |
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182 |
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1449
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183 if (! (plot_stream && *plot_stream)) |
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597
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184 { |
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185 open_plot_stream (); |
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186 |
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187 if (error_state) |
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188 return -1; |
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189 } |
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190 |
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930
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191 int replot_len = strlen (GNUPLOT_COMMAND_REPLOT); |
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192 int splot_len = strlen (GNUPLOT_COMMAND_SPLOT); |
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193 int plot_len = strlen (GNUPLOT_COMMAND_PLOT); |
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194 |
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195 int is_replot = (strncmp (cmd, GNUPLOT_COMMAND_REPLOT, replot_len) == 0); |
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196 int is_splot = (strncmp (cmd, GNUPLOT_COMMAND_SPLOT, splot_len) == 0); |
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197 int is_plot = (strncmp (cmd, GNUPLOT_COMMAND_PLOT, plot_len) == 0); |
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661
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198 |
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199 if (plot_line_count == 0 && is_replot) |
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597
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200 error ("replot: no previous plot"); |
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201 else |
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202 { |
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1449
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203 *plot_stream << cmd; |
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930
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204 |
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661
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205 if (! (is_replot || is_splot || is_plot) |
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206 && plot_line_count > 0 |
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207 && user_pref.automatic_replot) |
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1449
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208 *plot_stream << GNUPLOT_COMMAND_REPLOT << "\n"; |
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930
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209 |
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1449
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210 plot_stream->flush (); |
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597
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211 pipe_handler_error_count = 0; |
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212 } |
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213 |
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214 return 0; |
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215 } |
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216 |
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581
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217 // Plotting, eh? |
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1
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218 |
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219 tree_plot_command::~tree_plot_command (void) |
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220 { |
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221 delete range; |
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222 delete plot_list; |
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223 } |
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224 |
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578
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225 void |
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226 tree_plot_command::eval (void) |
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1
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227 { |
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143
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228 if (error_state) |
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578
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229 return; |
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143
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230 |
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597
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231 open_plot_stream (); |
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232 |
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1
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233 ostrstream plot_buf; |
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234 |
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235 switch (ndim) |
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236 { |
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476
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237 case 1: |
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478
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238 if (plot_line_count == 0) |
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239 { |
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240 if (plot_list) |
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866
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241 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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242 else |
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243 { |
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244 ::error ("replot: must have something to plot"); |
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578
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245 return; |
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478
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246 } |
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247 } |
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248 else |
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866
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249 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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476
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250 break; |
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777
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251 |
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1
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252 case 2: |
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478
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253 if (clear_before_plotting || plot_line_count == 0) |
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254 { |
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255 plot_line_count = 0; |
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866
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256 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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257 } |
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258 else |
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930
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259 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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260 break; |
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777
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261 |
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1
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262 case 3: |
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930
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263 if (clear_before_plotting || plot_line_count == 0) |
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264 { |
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265 plot_line_count = 0; |
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266 plot_buf << GNUPLOT_COMMAND_SPLOT; |
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267 } |
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268 else |
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269 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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270 break; |
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777
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271 |
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1
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272 default: |
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771
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273 gripe_2_or_3_dim_plot (); |
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274 return; |
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1
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275 } |
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276 |
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524
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277 if (range) |
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478
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278 { |
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279 if (plot_line_count == 0) |
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280 range->print (ndim, plot_buf); |
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281 else |
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282 warning ("can't specify new plot ranges with `replot' or while\ |
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283 hold is on"); |
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284 } |
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1
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285 |
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191
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286 if (error_state) |
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578
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287 return; |
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191
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288 |
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591
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289 if (plot_list) |
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1
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290 { |
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591
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291 int status = plot_list->print (ndim, plot_buf); |
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578
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292 |
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771
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293 if (error_state || status < 0) |
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578
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294 return; |
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1
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295 } |
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296 |
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297 plot_buf << "\n" << ends; |
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298 |
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1358
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299 // Just testing... |
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300 // char *message = plot_buf.str (); |
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301 // cout << "[*]" << message << "[*]\n"; |
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1
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302 |
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303 if (parametric_plot && ndim == 2) |
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304 { |
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305 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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306 send_to_plot_stream ("set noparametric\n"); |
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307 char *message = plot_buf.str (); |
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308 send_to_plot_stream (message); |
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309 delete [] message; |
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310 send_to_plot_stream ("set parametric\n"); |
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311 } |
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312 else |
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313 { |
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314 char *message = plot_buf.str (); |
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315 send_to_plot_stream (message); |
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316 delete [] message; |
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317 } |
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318 } |
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319 |
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591
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320 void |
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321 tree_plot_command::print_code (ostream& os) |
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1
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322 { |
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591
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323 print_code_indent (os); |
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86
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324 |
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591
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325 switch (ndim) |
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1
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326 { |
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591
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327 case 1: |
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328 os << "replot"; |
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329 break; |
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777
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330 |
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591
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331 case 2: |
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332 os << "gplot"; |
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333 break; |
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777
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334 |
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591
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335 case 3: |
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336 os << "gsplot"; |
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337 break; |
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777
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338 |
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591
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339 default: |
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771
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340 os << "<unkown plot command>"; |
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591
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341 break; |
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1
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342 } |
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343 |
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591
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344 if (range) |
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345 range->print_code (os); |
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1
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346 |
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591
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347 if (plot_list) |
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348 plot_list->print_code (os); |
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1
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349 } |
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350 |
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578
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351 plot_limits::~plot_limits (void) |
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1
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352 { |
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353 delete x_range; |
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354 delete y_range; |
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355 delete z_range; |
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356 } |
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357 |
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358 void |
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578
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359 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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360 { |
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361 if (ndim == 2 || ndim == 3) |
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362 { |
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524
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363 if (x_range) |
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1
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364 x_range->print (plot_buf); |
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365 else |
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366 return; |
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367 |
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524
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368 if (y_range) |
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1
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369 y_range->print (plot_buf); |
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370 else |
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371 return; |
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372 } |
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373 |
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524
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374 if (ndim == 3 && z_range) |
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1
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375 z_range->print (plot_buf); |
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376 } |
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377 |
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591
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378 void |
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379 plot_limits::print_code (ostream& os) |
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380 { |
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381 if (x_range) |
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382 x_range->print_code (os); |
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383 |
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384 if (y_range) |
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385 y_range->print_code (os); |
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386 |
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387 if (z_range) |
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388 z_range->print_code (os); |
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389 } |
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390 |
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578
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391 plot_range::~plot_range (void) |
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1
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392 { |
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393 delete lower; |
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394 delete upper; |
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395 } |
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396 |
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397 void |
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578
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398 plot_range::print (ostrstream& plot_buf) |
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1
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399 { |
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400 plot_buf << " ["; |
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401 |
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524
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402 if (lower) |
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1
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403 { |
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404 tree_constant lower_val = lower->eval (0); |
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191
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405 if (error_state) |
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406 { |
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240
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407 ::error ("evaluating lower bound of plot range"); |
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191
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408 return; |
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409 } |
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410 else |
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411 { |
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629
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412 double lo = lower_val.double_value (); |
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191
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413 plot_buf << lo; |
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414 } |
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1
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415 } |
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416 |
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417 plot_buf << ":"; |
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418 |
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524
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419 if (upper) |
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1
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420 { |
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421 tree_constant upper_val = upper->eval (0); |
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191
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422 if (error_state) |
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423 { |
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240
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424 ::error ("evaluating upper bound of plot range"); |
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191
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425 return; |
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426 } |
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427 else |
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428 { |
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629
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429 double hi = upper_val.double_value (); |
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191
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430 plot_buf << hi; |
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431 } |
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1
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432 } |
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433 |
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434 plot_buf << "]"; |
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435 } |
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436 |
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591
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437 void |
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438 plot_range::print_code (ostream& os) |
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439 { |
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440 os << " ["; |
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441 |
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442 if (lower) |
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443 lower->print_code (os); |
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444 |
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445 os << ":"; |
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446 |
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447 if (upper) |
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448 upper->print_code (os); |
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449 |
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450 os << "]"; |
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451 } |
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452 |
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578
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453 subplot_using::~subplot_using (void) |
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1
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454 { |
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455 delete scanf_fmt; |
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456 } |
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457 |
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458 int |
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872
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459 subplot_using::eval (int ndim, int n_max) |
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1
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460 { |
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461 if ((ndim == 2 && qualifier_count > 4) |
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462 || (ndim == 3 && qualifier_count > 3)) |
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463 return -1; |
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464 |
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872
|
465 if (qualifier_count > 0) |
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466 val.resize (qualifier_count); |
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467 |
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1
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468 for (int i = 0; i < qualifier_count; i++) |
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469 { |
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524
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470 if (x[i]) |
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1
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471 { |
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472 tree_constant tmp = x[i]->eval (0); |
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191
|
473 if (error_state) |
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|
474 { |
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240
|
475 ::error ("evaluating plot using command"); |
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191
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476 return -1; |
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|
477 } |
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|
478 |
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872
|
479 double val_tmp; |
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1
|
480 if (tmp.is_defined ()) |
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|
481 { |
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872
|
482 val_tmp = tmp.double_value (); |
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1
|
483 |
|
872
|
484 if (error_state) |
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|
485 return -1; |
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1
|
486 |
|
1086
|
487 if (xisnan (val_tmp)) |
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|
488 { |
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|
489 ::error ("NaN is invalid as a column specifier"); |
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|
490 return -1; |
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|
491 } |
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|
492 |
|
872
|
493 int n = NINT (val_tmp); |
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1086
|
494 |
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322
|
495 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
496 { |
|
240
|
497 ::error ("using: column %d out of range", n); |
|
1
|
498 return -1; |
|
|
499 } |
|
|
500 else |
|
872
|
501 val.elem (i) = n; |
|
1
|
502 } |
|
|
503 else |
|
|
504 return -1; |
|
|
505 } |
|
|
506 else |
|
|
507 return -1; |
|
|
508 } |
|
|
509 |
|
524
|
510 if (scanf_fmt) |
|
1
|
511 warning ("ignoring scanf format in plot command"); |
|
|
512 |
|
872
|
513 return 0; |
|
|
514 } |
|
|
515 |
|
|
516 ColumnVector |
|
|
517 subplot_using::values (int ndim, int n_max) |
|
|
518 { |
|
|
519 int status = eval (ndim, n_max); |
|
|
520 |
|
1203
|
521 if (status < 0) |
|
872
|
522 return -1; |
|
|
523 |
|
|
524 return val; |
|
|
525 } |
|
|
526 |
|
|
527 int |
|
|
528 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
529 { |
|
|
530 int status = eval (ndim, n_max); |
|
|
531 |
|
1203
|
532 if (status < 0) |
|
872
|
533 return -1; |
|
|
534 |
|
|
535 for (int i = 0; i < qualifier_count; i++) |
|
|
536 { |
|
|
537 if (i == 0) |
|
|
538 plot_buf << " " << GNUPLOT_COMMAND_USING << " "; |
|
|
539 else |
|
|
540 plot_buf << ":"; |
|
|
541 |
|
|
542 plot_buf << val.elem (i); |
|
|
543 } |
|
|
544 |
|
1
|
545 return 0; |
|
|
546 } |
|
|
547 |
|
591
|
548 void |
|
|
549 subplot_using::print_code (ostream& os) |
|
|
550 { |
|
|
551 os << " using "; |
|
|
552 for (int i = 0; i < qualifier_count; i++) |
|
|
553 { |
|
|
554 if (i > 0) |
|
|
555 os << ":"; |
|
|
556 |
|
|
557 if (x[i]) |
|
|
558 x[i]->print_code (os); |
|
|
559 } |
|
|
560 } |
|
|
561 |
|
578
|
562 subplot_style::subplot_style (char *s) |
|
1
|
563 { |
|
|
564 style = strsave (s); |
|
524
|
565 linetype = 0; |
|
|
566 pointtype = 0; |
|
1
|
567 } |
|
|
568 |
|
578
|
569 subplot_style::subplot_style (char *s, tree_expression *lt) |
|
1
|
570 { |
|
|
571 style = strsave (s); |
|
|
572 linetype = lt; |
|
524
|
573 pointtype = 0; |
|
1
|
574 } |
|
|
575 |
|
578
|
576 subplot_style::subplot_style (char *s, tree_expression *lt, |
|
1622
|
577 tree_expression *pt) |
|
1
|
578 { |
|
|
579 style = strsave (s); |
|
|
580 linetype = lt; |
|
|
581 pointtype = pt; |
|
|
582 } |
|
|
583 |
|
578
|
584 subplot_style::~subplot_style (void) |
|
1622
|
585 { |
|
1
|
586 delete [] style; |
|
|
587 delete linetype; |
|
|
588 delete pointtype; |
|
|
589 } |
|
|
590 |
|
|
591 int |
|
578
|
592 subplot_style::print (ostrstream& plot_buf) |
|
1
|
593 { |
|
524
|
594 if (style) |
|
1
|
595 { |
|
866
|
596 plot_buf << " " << GNUPLOT_COMMAND_WITH << " " << style; |
|
1
|
597 |
|
524
|
598 if (linetype) |
|
1
|
599 { |
|
|
600 tree_constant tmp = linetype->eval (0); |
|
191
|
601 if (! error_state && tmp.is_defined ()) |
|
1
|
602 { |
|
629
|
603 double val = tmp.double_value (); |
|
1086
|
604 if (xisnan (val)) |
|
|
605 { |
|
|
606 ::error ("NaN is invalid a plotting line style"); |
|
|
607 return -1; |
|
|
608 } |
|
|
609 else |
|
|
610 plot_buf << " " << NINT (val); |
|
1
|
611 } |
|
|
612 else |
|
191
|
613 { |
|
240
|
614 ::error ("evaluating plot style command"); |
|
191
|
615 return -1; |
|
|
616 } |
|
1
|
617 } |
|
|
618 |
|
524
|
619 if (pointtype) |
|
1
|
620 { |
|
|
621 tree_constant tmp = pointtype->eval (0); |
|
191
|
622 if (! error_state && tmp.is_defined ()) |
|
1
|
623 { |
|
629
|
624 double val = tmp.double_value (); |
|
1086
|
625 if (xisnan (val)) |
|
|
626 { |
|
|
627 ::error ("NaN is invalid a plotting point style"); |
|
|
628 return -1; |
|
|
629 } |
|
|
630 else |
|
|
631 plot_buf << " " << NINT (val); |
|
1
|
632 } |
|
|
633 else |
|
191
|
634 { |
|
240
|
635 ::error ("evaluating plot style command"); |
|
191
|
636 return -1; |
|
|
637 } |
|
1
|
638 } |
|
|
639 } |
|
|
640 else |
|
|
641 return -1; |
|
|
642 |
|
|
643 return 0; |
|
|
644 } |
|
|
645 |
|
872
|
646 int |
|
|
647 subplot_style::errorbars (void) |
|
|
648 { |
|
|
649 return (style |
|
|
650 && (almost_match ("errorbars", style, 1, 0) |
|
|
651 || almost_match ("boxerrorbars", style, 5, 0))); |
|
|
652 } |
|
|
653 |
|
591
|
654 void |
|
|
655 subplot_style::print_code (ostream& os) |
|
|
656 { |
|
|
657 os << " with " << style; |
|
|
658 |
|
|
659 if (linetype) |
|
|
660 { |
|
|
661 os << " "; |
|
|
662 linetype->print_code (os); |
|
|
663 } |
|
|
664 |
|
|
665 if (pointtype) |
|
|
666 { |
|
|
667 os << " "; |
|
|
668 pointtype->print_code (os); |
|
|
669 } |
|
|
670 } |
|
|
671 |
|
878
|
672 subplot::~subplot (void) |
|
|
673 { |
|
|
674 delete plot_data; |
|
999
|
675 delete using_clause; |
|
|
676 delete title_clause; |
|
|
677 delete style_clause; |
|
878
|
678 } |
|
|
679 |
|
872
|
680 tree_constant |
|
|
681 subplot::extract_plot_data (int ndim, tree_constant& data) |
|
|
682 { |
|
|
683 tree_constant retval; |
|
|
684 |
|
999
|
685 if (using_clause) |
|
872
|
686 { |
|
999
|
687 ColumnVector val = using_clause->values (ndim); |
|
872
|
688 |
|
|
689 Octave_object args; |
|
|
690 args(1) = val; |
|
|
691 args(0) = tree_constant::magic_colon_t; |
|
|
692 |
|
|
693 Octave_object tmp = data.eval (0, 1, args); |
|
|
694 retval = tmp(0); |
|
|
695 |
|
|
696 if (error_state) |
|
|
697 return tree_constant (); |
|
|
698 } |
|
|
699 else |
|
|
700 { |
|
|
701 retval = data; |
|
|
702 } |
|
|
703 |
|
999
|
704 if (ndim == 2 && style_clause && style_clause->errorbars ()) |
|
872
|
705 { |
|
|
706 int nc = retval.columns (); |
|
|
707 |
|
|
708 if (nc < 3 || nc > 4) |
|
|
709 { |
|
|
710 error ("plots with errorbars require 3 or 4 columns of data"); |
|
|
711 error ("but %d were provided", nc); |
|
|
712 return tree_constant (); |
|
|
713 } |
|
|
714 } |
|
|
715 |
|
|
716 return retval; |
|
|
717 } |
|
|
718 |
|
591
|
719 int |
|
872
|
720 subplot::handle_plot_data (int ndim, ostrstream& plot_buf) |
|
591
|
721 { |
|
|
722 if (plot_data) |
|
|
723 { |
|
|
724 tree_constant data = plot_data->eval (0); |
|
872
|
725 |
|
591
|
726 if (! error_state && data.is_defined ()) |
|
|
727 { |
|
|
728 char *file = 0; |
|
610
|
729 if (data.is_string ()) |
|
591
|
730 { |
|
1358
|
731 // Should really try to look at data file to determine |
|
|
732 // n_max. Can't do much about other arbitrary gnuplot |
|
|
733 // commands though... |
|
872
|
734 |
|
|
735 int n_max = 0; |
|
|
736 |
|
1728
|
737 string tstr = data.string_value (); |
|
|
738 |
|
|
739 file = tilde_expand (tstr.c_str ()); |
|
591
|
740 ifstream ftmp (file); |
|
|
741 if (ftmp) |
|
|
742 { |
|
|
743 plot_buf << " \"" << file << '"'; |
|
|
744 free (file); |
|
|
745 } |
|
|
746 else |
|
|
747 { |
|
|
748 free (file); |
|
|
749 file = 0; |
|
|
750 |
|
1358
|
751 // Opening as a file failed. Let's try passing it |
|
|
752 // along as a plot command. |
|
|
753 |
|
591
|
754 plot_buf << " " << data.string_value (); |
|
872
|
755 } |
|
|
756 |
|
999
|
757 if (using_clause) |
|
872
|
758 { |
|
999
|
759 int status = using_clause->print (ndim, n_max, plot_buf); |
|
872
|
760 if (status < 0) |
|
|
761 return -1; |
|
591
|
762 } |
|
|
763 } |
|
872
|
764 else |
|
591
|
765 { |
|
1358
|
766 // Eliminate the need for printing a using clause to |
|
|
767 // plot_buf. |
|
872
|
768 |
|
|
769 tree_constant tmp_data = extract_plot_data (ndim, data); |
|
|
770 |
|
|
771 if (tmp_data.is_defined ()) |
|
|
772 { |
|
|
773 switch (ndim) |
|
|
774 { |
|
|
775 case 2: |
|
|
776 file = save_in_tmp_file (tmp_data, ndim); |
|
|
777 break; |
|
777
|
778 |
|
872
|
779 case 3: |
|
|
780 file = save_in_tmp_file (tmp_data, ndim, |
|
|
781 parametric_plot); |
|
|
782 break; |
|
777
|
783 |
|
872
|
784 default: |
|
|
785 gripe_2_or_3_dim_plot (); |
|
|
786 break; |
|
|
787 } |
|
591
|
788 |
|
872
|
789 if (file) |
|
|
790 { |
|
|
791 mark_for_deletion (file); |
|
|
792 plot_buf << " \"" << file << '"'; |
|
|
793 } |
|
|
794 } |
|
591
|
795 } |
|
|
796 } |
|
|
797 else |
|
|
798 return -1; |
|
|
799 } |
|
|
800 else |
|
|
801 return -1; |
|
|
802 |
|
872
|
803 return 0; |
|
|
804 } |
|
591
|
805 |
|
872
|
806 int |
|
|
807 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
808 { |
|
|
809 int status = handle_plot_data (ndim, plot_buf); |
|
|
810 |
|
|
811 if (status < 0) |
|
|
812 return -1; |
|
591
|
813 |
|
999
|
814 if (title_clause) |
|
591
|
815 { |
|
999
|
816 tree_constant tmp = title_clause->eval (0); |
|
610
|
817 if (! error_state && tmp.is_string ()) |
|
866
|
818 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
819 << '"' << tmp.string_value () << '"'; |
|
591
|
820 else |
|
|
821 { |
|
|
822 warning ("line title must be a string"); |
|
866
|
823 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
824 << '"' << "line " << plot_line_count << '"'; |
|
591
|
825 } |
|
|
826 } |
|
|
827 else |
|
866
|
828 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
829 << '"' << "line " << plot_line_count << '"'; |
|
591
|
830 |
|
999
|
831 if (style_clause) |
|
591
|
832 { |
|
999
|
833 int status = style_clause->print (plot_buf); |
|
591
|
834 if (status < 0) |
|
|
835 return -1; |
|
|
836 } |
|
|
837 |
|
|
838 return 0; |
|
|
839 } |
|
|
840 |
|
|
841 void |
|
|
842 subplot::print_code (ostream& os) |
|
|
843 { |
|
|
844 if (plot_data) |
|
592
|
845 { |
|
|
846 os << " "; |
|
|
847 plot_data->print_code (os); |
|
|
848 } |
|
591
|
849 |
|
999
|
850 if (using_clause) |
|
|
851 using_clause->print_code (os); |
|
591
|
852 |
|
999
|
853 if (title_clause) |
|
|
854 title_clause->print_code (os); |
|
591
|
855 |
|
999
|
856 if (style_clause) |
|
|
857 style_clause->print_code (os); |
|
591
|
858 } |
|
|
859 |
|
1622
|
860 subplot_list::~subplot_list (void) |
|
|
861 { |
|
|
862 while (! empty ()) |
|
|
863 { |
|
|
864 subplot *t = remove_front (); |
|
|
865 delete t; |
|
|
866 } |
|
|
867 } |
|
|
868 |
|
883
|
869 int |
|
591
|
870 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
871 { |
|
|
872 int status = 0; |
|
|
873 |
|
|
874 for (Pix p = first (); p != 0; next (p)) |
|
|
875 { |
|
|
876 subplot *elt = this->operator () (p); |
|
|
877 |
|
|
878 plot_line_count++; |
|
|
879 |
|
|
880 if (p != first ()) |
|
|
881 plot_buf << ",\\\n "; |
|
|
882 |
|
|
883 status = elt->print (ndim, plot_buf); |
|
|
884 |
|
|
885 if (status < 0) |
|
|
886 break; |
|
|
887 } |
|
|
888 |
|
|
889 return status; |
|
|
890 } |
|
|
891 |
|
|
892 void |
|
|
893 subplot_list::print_code (ostream& os) |
|
|
894 { |
|
|
895 Pix p = first (); |
|
|
896 |
|
|
897 while (p) |
|
|
898 { |
|
|
899 subplot *elt = this->operator () (p); |
|
|
900 |
|
|
901 next (p); |
|
|
902 |
|
|
903 if (elt) |
|
|
904 { |
|
|
905 elt->print_code (os); |
|
|
906 |
|
|
907 if (p) |
|
592
|
908 os << ","; |
|
591
|
909 } |
|
|
910 } |
|
|
911 } |
|
|
912 |
|
524
|
913 char * |
|
|
914 save_in_tmp_file (tree_constant& t, int ndim, int parametric) |
|
|
915 { |
|
662
|
916 char *name = octave_tmp_file_name (); |
|
524
|
917 if (name) |
|
|
918 { |
|
|
919 ofstream file (name); |
|
|
920 if (file) |
|
|
921 { |
|
|
922 switch (ndim) |
|
|
923 { |
|
|
924 case 2: |
|
871
|
925 save_ascii_data (file, t, 0, 1); |
|
524
|
926 break; |
|
777
|
927 |
|
524
|
928 case 3: |
|
607
|
929 save_three_d (file, t, parametric); |
|
524
|
930 break; |
|
777
|
931 |
|
524
|
932 default: |
|
771
|
933 gripe_2_or_3_dim_plot (); |
|
524
|
934 break; |
|
|
935 } |
|
|
936 } |
|
|
937 else |
|
|
938 { |
|
|
939 error ("couldn't open temporary output file `%s'", name); |
|
|
940 name = 0; |
|
|
941 } |
|
|
942 } |
|
|
943 return name; |
|
|
944 } |
|
|
945 |
|
|
946 void |
|
|
947 mark_for_deletion (const char *filename) |
|
|
948 { |
|
|
949 char *tmp = strsave (filename); |
|
|
950 tmp_files.push (tmp); |
|
|
951 } |
|
|
952 |
|
|
953 void |
|
|
954 cleanup_tmp_files (void) |
|
|
955 { |
|
|
956 while (! tmp_files.empty ()) |
|
|
957 { |
|
|
958 char *filename = tmp_files.pop (); |
|
|
959 unlink (filename); |
|
|
960 delete [] filename; |
|
|
961 } |
|
|
962 } |
|
|
963 |
|
|
964 void |
|
|
965 close_plot_stream (void) |
|
|
966 { |
|
1449
|
967 if (plot_stream) |
|
|
968 { |
|
|
969 delete plot_stream; |
|
|
970 plot_stream = 0; |
|
|
971 } |
|
524
|
972 |
|
|
973 plot_line_count = 0; |
|
|
974 } |
|
|
975 |
|
1328
|
976 void |
|
|
977 do_external_plotter_cd (const char *newdir) |
|
|
978 { |
|
1449
|
979 if (plot_stream && *plot_stream) |
|
1328
|
980 { |
|
|
981 ostrstream plot_buf; |
|
|
982 plot_buf << "cd \"" << newdir << "\"\n" << ends; |
|
|
983 char *message = plot_buf.str (); |
|
|
984 send_to_plot_stream (message); |
|
|
985 delete [] message; |
|
|
986 } |
|
|
987 } |
|
|
988 |
|
1488
|
989 DEFUN ("clearplot", Fclearplot, Sclearplot, 00, |
|
883
|
990 "clearplot (): clear the plot window") |
|
|
991 { |
|
|
992 Octave_object retval; |
|
|
993 send_to_plot_stream ("clear\n"); |
|
930
|
994 |
|
1358
|
995 // XXX FIXME XXX -- instead of just clearing these things, it would |
|
|
996 // be nice if we could reset things to a user-specified default |
|
|
997 // state. |
|
930
|
998 |
|
|
999 send_to_plot_stream ("set title\n"); |
|
|
1000 send_to_plot_stream ("set xlabel\n"); |
|
|
1001 send_to_plot_stream ("set ylabel\n"); |
|
940
|
1002 send_to_plot_stream ("set nogrid\n"); |
|
1000
|
1003 send_to_plot_stream ("set nolabel\n"); |
|
940
|
1004 |
|
1358
|
1005 // This makes a simple `replot' not work after a `clearplot' command |
|
|
1006 // has been issued. |
|
940
|
1007 |
|
|
1008 plot_line_count = 0; |
|
930
|
1009 |
|
883
|
1010 return retval; |
|
|
1011 } |
|
|
1012 |
|
884
|
1013 DEFALIAS (clg, clearplot); |
|
|
1014 |
|
1488
|
1015 DEFUN ("closeplot", Fcloseplot, Scloseplot, 00, |
|
524
|
1016 "closeplot (): close the stream to plotter") |
|
|
1017 { |
|
|
1018 Octave_object retval; |
|
|
1019 close_plot_stream (); |
|
|
1020 return retval; |
|
|
1021 } |
|
|
1022 |
|
1488
|
1023 DEFUN_TEXT ("hold", Fhold, Shold, 10, |
|
524
|
1024 "hold [on|off]\n\ |
|
|
1025 \n\ |
|
|
1026 determine whether the plot window is cleared before the next line is\n\ |
|
|
1027 drawn. With no argument, toggle the current state.") |
|
|
1028 { |
|
|
1029 Octave_object retval; |
|
|
1030 |
|
|
1031 DEFINE_ARGV("hold"); |
|
|
1032 |
|
|
1033 switch (argc) |
|
|
1034 { |
|
|
1035 case 1: |
|
|
1036 clear_before_plotting = ! clear_before_plotting; |
|
|
1037 break; |
|
777
|
1038 |
|
524
|
1039 case 2: |
|
|
1040 if (strcasecmp (argv[1], "on") == 0) |
|
|
1041 clear_before_plotting = 0; |
|
|
1042 else if (strcasecmp (argv[1], "off") == 0) |
|
|
1043 clear_before_plotting = 1; |
|
|
1044 else |
|
|
1045 print_usage ("hold"); |
|
|
1046 break; |
|
777
|
1047 |
|
524
|
1048 default: |
|
|
1049 print_usage ("hold"); |
|
|
1050 break; |
|
|
1051 } |
|
|
1052 |
|
|
1053 DELETE_ARGV; |
|
|
1054 |
|
|
1055 return retval; |
|
|
1056 } |
|
|
1057 |
|
1488
|
1058 DEFUN ("ishold", Fishold, Sishold, 00, |
|
735
|
1059 "ishold\n\ |
|
|
1060 \n\ |
|
|
1061 Return 1 if hold is on, otherwise return 0.") |
|
|
1062 { |
|
|
1063 return (double) (! clear_before_plotting); |
|
|
1064 } |
|
|
1065 |
|
1488
|
1066 DEFUN ("purge_tmp_files", Fpurge_tmp_files, Spurge_tmp_files, 00, |
|
524
|
1067 "delete temporary data files used for plotting") |
|
|
1068 { |
|
|
1069 Octave_object retval; |
|
|
1070 cleanup_tmp_files (); |
|
|
1071 return retval; |
|
|
1072 } |
|
|
1073 |
|
1488
|
1074 DEFUN_TEXT ("set", Fset, Sset, 10, |
|
524
|
1075 "set [options]\n\ |
|
|
1076 \n\ |
|
|
1077 set plotting options") |
|
|
1078 { |
|
|
1079 Octave_object retval; |
|
|
1080 |
|
|
1081 DEFINE_ARGV("set"); |
|
|
1082 |
|
|
1083 ostrstream plot_buf; |
|
|
1084 |
|
|
1085 if (argc > 1) |
|
|
1086 { |
|
|
1087 if (almost_match ("parametric", argv[1], 3)) |
|
|
1088 parametric_plot = 1; |
|
|
1089 else if (almost_match ("noparametric", argv[1], 5)) |
|
|
1090 parametric_plot = 0; |
|
943
|
1091 else if (almost_match ("term", argv[1], 1)) |
|
|
1092 { |
|
|
1093 delete [] gnuplot_terminal_type; |
|
|
1094 ostrstream buf; |
|
|
1095 for (int i = 2; i < argc; i++) |
|
|
1096 buf << argv[i] << " "; |
|
|
1097 buf << "\n" << ends; |
|
|
1098 gnuplot_terminal_type = buf.str (); |
|
|
1099 } |
|
524
|
1100 } |
|
|
1101 |
|
|
1102 for (int i = 0; i < argc; i++) |
|
|
1103 plot_buf << argv[i] << " "; |
|
|
1104 |
|
|
1105 plot_buf << "\n" << ends; |
|
|
1106 |
|
|
1107 char *plot_command = plot_buf.str (); |
|
|
1108 send_to_plot_stream (plot_command); |
|
|
1109 |
|
|
1110 delete [] plot_command; |
|
|
1111 |
|
|
1112 DELETE_ARGV; |
|
|
1113 |
|
|
1114 return retval; |
|
|
1115 } |
|
|
1116 |
|
1488
|
1117 DEFUN_TEXT ("show", Fshow, Sshow, 10, |
|
524
|
1118 "show [options]\n\ |
|
|
1119 \n\ |
|
|
1120 show plotting options") |
|
|
1121 { |
|
|
1122 Octave_object retval; |
|
|
1123 |
|
|
1124 DEFINE_ARGV("show"); |
|
|
1125 |
|
|
1126 ostrstream plot_buf; |
|
|
1127 |
|
|
1128 for (int i = 0; i < argc; i++) |
|
|
1129 plot_buf << argv[i] << " "; |
|
|
1130 |
|
|
1131 plot_buf << "\n" << ends; |
|
|
1132 |
|
|
1133 char *plot_command = plot_buf.str (); |
|
|
1134 send_to_plot_stream (plot_command); |
|
|
1135 |
|
|
1136 delete [] plot_command; |
|
|
1137 |
|
|
1138 DELETE_ARGV; |
|
|
1139 |
|
|
1140 return retval; |
|
|
1141 } |
|
|
1142 |
|
1
|
1143 /* |
|
|
1144 ;;; Local Variables: *** |
|
|
1145 ;;; mode: C++ *** |
|
|
1146 ;;; page-delimiter: "^/\\*" *** |
|
|
1147 ;;; End: *** |
|
|
1148 */ |
