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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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322
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4 Copyright (C) 1992, 1993, 1994 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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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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240
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24 #ifdef HAVE_CONFIG_H |
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25 #include "config.h" |
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1
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26 #endif |
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27 |
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524
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28 #if defined (__GNUG__) |
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29 #pragma implementation |
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30 #endif |
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31 |
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32 #include <sys/types.h> |
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33 #ifdef HAVE_UNISTD_H |
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34 #include <unistd.h> |
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35 #endif |
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597
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36 #include <string.h> |
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1
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37 #include <iostream.h> |
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597
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38 #include <strstream.h> |
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86
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39 #include <fstream.h> |
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40 |
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524
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41 #include "SLStack.h" |
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42 #include "procstream.h" |
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43 |
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44 #include "user-prefs.h" |
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584
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45 #include "tree-base.h" |
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46 #include "tree-expr.h" |
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47 #include "tree-cmd.h" |
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524
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48 #include "tree-const.h" |
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49 #include "tree-plot.h" |
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607
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50 #include "load-save.h" |
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543
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51 #include "help.h" |
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1
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52 #include "error.h" |
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777
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53 #include "gripes.h" |
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1
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54 #include "utils.h" |
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524
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55 #include "defun.h" |
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56 |
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87
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57 extern "C" |
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58 { |
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581
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59 #include <readline/tilde.h> |
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87
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60 } |
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61 |
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1
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62 // The number of lines we\'ve plotted so far. |
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735
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63 static int plot_line_count = 0; |
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1
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64 |
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65 // Is this a parametric plot? Makes a difference for 3D plotting. |
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735
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66 static int parametric_plot = 0; |
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1
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67 |
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478
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68 // Should the graph window be cleared before plotting the next line? |
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735
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69 static int clear_before_plotting = 1; |
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478
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70 |
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524
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71 // List of files to delete when we exit or crash. |
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72 static SLStack <char *> tmp_files; |
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73 |
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74 // Pipe to gnuplot. |
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75 static oprocstream plot_stream; |
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76 |
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866
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77 // Use shortest possible abbreviations to minimize trouble caused by |
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78 // gnuplot's fixed-length command line buffer. |
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79 |
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80 #ifndef GNUPLOT_COMMAND_PLOT |
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81 #define GNUPLOT_COMMAND_PLOT "pl" |
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82 #endif |
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83 |
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84 #ifndef GNUPLOT_COMMAND_REPLOT |
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85 #define GNUPLOT_COMMAND_REPLOT "rep" |
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86 #endif |
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87 |
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88 #ifndef GNUPLOT_COMMAND_SPLOT |
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89 #define GNUPLOT_COMMAND_SPLOT "sp" |
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90 #endif |
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91 |
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92 #ifndef GNUPLOT_COMMAND_USING |
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93 #define GNUPLOT_COMMAND_USING "u" |
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94 #endif |
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95 |
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96 #ifndef GNUPLOT_COMMAND_WITH |
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97 #define GNUPLOT_COMMAND_WITH "w" |
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98 #endif |
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99 |
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100 #ifndef GNUPLOT_COMMAND_TITLE |
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101 #define GNUPLOT_COMMAND_TITLE "t" |
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102 #endif |
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103 |
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597
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104 static void |
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105 open_plot_stream (void) |
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106 { |
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107 static int initialized = 0; |
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108 |
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109 if (! plot_stream.is_open ()) |
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110 { |
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111 plot_line_count = 0; |
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112 |
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113 char *plot_prog = user_pref.gnuplot_binary; |
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114 if (plot_prog) |
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115 { |
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116 plot_stream.open (plot_prog); |
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117 if (! plot_stream.is_open ()) |
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118 { |
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119 warning ("plot: unable to open pipe to `%s'", |
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120 plot_prog); |
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121 |
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122 if (strcmp (plot_prog, "gnuplot") != 0) |
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123 { |
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124 warning ("having trouble finding plotting program."); |
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125 warning ("trying again with `gnuplot'"); |
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126 goto last_chance; |
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127 } |
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128 } |
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129 } |
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130 else |
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131 { |
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132 last_chance: |
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133 |
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134 plot_stream.open ("gnuplot"); |
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135 |
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136 if (! plot_stream.is_open ()) |
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137 error ("plot: unable to open pipe to `%s'", plot_prog); |
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138 } |
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139 } |
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140 |
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141 if (! initialized) |
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142 { |
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143 initialized = 1; |
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144 plot_stream << "set data style lines\n"; |
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145 } |
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146 } |
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147 |
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148 static int |
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149 send_to_plot_stream (const char *cmd) |
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150 { |
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151 // From sighandlers.cc: |
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152 extern int pipe_handler_error_count; |
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153 |
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154 if (! plot_stream.is_open ()) |
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155 { |
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156 open_plot_stream (); |
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157 |
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158 if (error_state) |
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159 return -1; |
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160 } |
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161 |
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661
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162 int is_replot = (strncmp (cmd, "replot", 6) == 0); |
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163 int is_splot = (strncmp (cmd, "splot", 5) == 0); |
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164 int is_plot = (strncmp (cmd, "plot", 4) == 0); |
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165 |
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166 if (plot_line_count == 0 && is_replot) |
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597
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167 error ("replot: no previous plot"); |
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168 else |
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169 { |
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170 plot_stream << cmd; |
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661
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171 if (! (is_replot || is_splot || is_plot) |
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172 && plot_line_count > 0 |
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173 && user_pref.automatic_replot) |
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866
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174 plot_stream << GNUPLOT_COMMAND_REPLOT << "\n"; |
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597
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175 plot_stream.flush (); |
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176 pipe_handler_error_count = 0; |
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177 } |
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178 |
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179 return 0; |
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180 } |
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181 |
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581
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182 // Plotting, eh? |
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1
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183 |
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581
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184 tree_plot_command::tree_plot_command (void) : tree_command () |
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1
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185 { |
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524
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186 range = 0; |
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187 plot_list = 0; |
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1
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188 ndim = 0; |
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189 } |
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190 |
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578
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191 tree_plot_command::tree_plot_command (subplot_list *plt, int nd) |
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581
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192 : tree_command () |
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1
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193 { |
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524
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194 range = 0; |
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1
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195 plot_list = plt; |
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196 ndim = nd; |
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197 } |
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198 |
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578
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199 tree_plot_command::tree_plot_command (subplot_list *plt, |
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200 plot_limits *rng, int nd) |
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581
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201 : tree_command () |
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1
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202 { |
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203 range = rng; |
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204 plot_list = plt; |
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205 ndim = nd; |
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206 } |
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207 |
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208 tree_plot_command::~tree_plot_command (void) |
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209 { |
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210 delete range; |
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211 delete plot_list; |
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212 } |
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213 |
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578
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214 void |
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215 tree_plot_command::eval (void) |
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1
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216 { |
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143
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217 if (error_state) |
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578
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218 return; |
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143
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219 |
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597
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220 open_plot_stream (); |
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221 |
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1
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222 ostrstream plot_buf; |
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223 |
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224 switch (ndim) |
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225 { |
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476
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226 case 1: |
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478
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227 if (plot_line_count == 0) |
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228 { |
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229 if (plot_list) |
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866
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230 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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231 else |
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232 { |
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233 ::error ("replot: must have something to plot"); |
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578
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234 return; |
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478
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235 } |
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236 } |
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237 else |
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866
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238 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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476
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239 break; |
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777
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240 |
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1
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241 case 2: |
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478
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242 if (clear_before_plotting || plot_line_count == 0) |
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243 { |
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244 plot_line_count = 0; |
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866
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245 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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246 } |
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247 else |
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248 plot_buf << "replot"; |
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1
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249 break; |
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777
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250 |
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1
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251 case 3: |
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478
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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_SPLOT; |
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478
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255 } |
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1
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256 break; |
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777
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257 |
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1
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258 default: |
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771
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259 gripe_2_or_3_dim_plot (); |
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260 return; |
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1
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261 } |
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262 |
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524
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263 if (range) |
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478
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264 { |
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265 if (plot_line_count == 0) |
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266 range->print (ndim, plot_buf); |
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267 else |
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268 warning ("can't specify new plot ranges with `replot' or while\ |
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269 hold is on"); |
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270 } |
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1
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271 |
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191
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272 if (error_state) |
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578
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273 return; |
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191
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274 |
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591
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275 if (plot_list) |
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1
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276 { |
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591
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277 int status = plot_list->print (ndim, plot_buf); |
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578
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278 |
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771
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279 if (error_state || status < 0) |
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578
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280 return; |
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1
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281 } |
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282 |
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283 plot_buf << "\n" << ends; |
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284 |
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285 // Just testing... |
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286 // char *message = plot_buf.str (); |
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287 // cout << "[*]" << message << "[*]\n"; |
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288 |
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289 if (parametric_plot && ndim == 2) |
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290 { |
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291 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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292 send_to_plot_stream ("set noparametric\n"); |
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293 char *message = plot_buf.str (); |
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294 send_to_plot_stream (message); |
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295 delete [] message; |
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296 send_to_plot_stream ("set parametric\n"); |
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297 } |
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298 else |
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299 { |
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300 char *message = plot_buf.str (); |
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301 send_to_plot_stream (message); |
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302 delete [] message; |
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303 } |
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304 } |
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305 |
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591
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306 void |
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307 tree_plot_command::print_code (ostream& os) |
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1
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308 { |
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591
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309 print_code_indent (os); |
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86
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310 |
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591
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311 switch (ndim) |
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1
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312 { |
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591
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313 case 1: |
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314 os << "replot"; |
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315 break; |
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777
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316 |
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591
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317 case 2: |
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318 os << "gplot"; |
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319 break; |
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777
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320 |
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591
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321 case 3: |
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322 os << "gsplot"; |
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323 break; |
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777
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324 |
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591
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325 default: |
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771
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326 os << "<unkown plot command>"; |
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591
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327 break; |
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1
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328 } |
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329 |
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591
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330 if (range) |
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331 range->print_code (os); |
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1
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332 |
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591
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333 if (plot_list) |
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334 plot_list->print_code (os); |
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1
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335 } |
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336 |
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578
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337 plot_limits::plot_limits (void) |
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1
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338 { |
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524
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339 x_range = 0; |
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340 y_range = 0; |
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341 z_range = 0; |
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1
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342 } |
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343 |
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578
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344 plot_limits::plot_limits (plot_range *xlim) |
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1
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345 { |
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346 x_range = xlim; |
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524
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347 y_range = 0; |
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348 z_range = 0; |
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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 (plot_range *xlim, |
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352 plot_range *ylim) |
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1
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353 { |
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354 x_range = xlim; |
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355 y_range = ylim; |
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524
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356 z_range = 0; |
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1
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357 } |
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358 |
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578
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359 plot_limits::plot_limits (plot_range *xlim, |
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360 plot_range *ylim, |
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361 plot_range *zlim) |
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1
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362 { |
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363 x_range = xlim; |
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364 y_range = ylim; |
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365 z_range = zlim; |
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366 } |
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367 |
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578
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368 plot_limits::~plot_limits (void) |
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1
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369 { |
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370 delete x_range; |
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371 delete y_range; |
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372 delete z_range; |
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373 } |
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374 |
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375 void |
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578
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376 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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377 { |
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378 if (ndim == 2 || ndim == 3) |
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379 { |
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524
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380 if (x_range) |
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1
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381 x_range->print (plot_buf); |
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382 else |
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383 return; |
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384 |
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524
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385 if (y_range) |
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1
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386 y_range->print (plot_buf); |
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387 else |
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388 return; |
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389 } |
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390 |
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524
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391 if (ndim == 3 && z_range) |
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1
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392 z_range->print (plot_buf); |
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393 } |
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394 |
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591
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395 void |
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396 plot_limits::print_code (ostream& os) |
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397 { |
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398 if (x_range) |
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399 x_range->print_code (os); |
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400 |
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401 if (y_range) |
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402 y_range->print_code (os); |
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403 |
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404 if (z_range) |
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405 z_range->print_code (os); |
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406 } |
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407 |
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578
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408 plot_range::plot_range (void) |
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1
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409 { |
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524
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410 lower = 0; |
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411 upper = 0; |
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1
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412 } |
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413 |
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578
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414 plot_range::plot_range (tree_expression *l, tree_expression *u) |
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1
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415 { |
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416 lower = l; |
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417 upper = u; |
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418 } |
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419 |
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578
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420 plot_range::~plot_range (void) |
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1
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421 { |
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422 delete lower; |
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423 delete upper; |
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424 } |
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425 |
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426 void |
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578
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427 plot_range::print (ostrstream& plot_buf) |
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1
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428 { |
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429 plot_buf << " ["; |
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430 |
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524
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431 if (lower) |
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1
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432 { |
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433 tree_constant lower_val = lower->eval (0); |
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191
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434 if (error_state) |
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435 { |
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240
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436 ::error ("evaluating lower bound of plot range"); |
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191
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437 return; |
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438 } |
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439 else |
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440 { |
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629
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441 double lo = lower_val.double_value (); |
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191
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442 plot_buf << lo; |
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443 } |
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1
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444 } |
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445 |
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446 plot_buf << ":"; |
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447 |
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524
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448 if (upper) |
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1
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449 { |
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450 tree_constant upper_val = upper->eval (0); |
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191
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451 if (error_state) |
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452 { |
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240
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453 ::error ("evaluating upper bound of plot range"); |
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191
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454 return; |
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455 } |
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456 else |
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457 { |
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629
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458 double hi = upper_val.double_value (); |
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191
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459 plot_buf << hi; |
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460 } |
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1
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461 } |
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462 |
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463 plot_buf << "]"; |
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464 } |
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465 |
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591
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466 void |
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467 plot_range::print_code (ostream& os) |
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468 { |
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469 os << " ["; |
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470 |
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471 if (lower) |
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472 lower->print_code (os); |
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473 |
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474 os << ":"; |
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475 |
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476 if (upper) |
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477 upper->print_code (os); |
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478 |
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479 os << "]"; |
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480 } |
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481 |
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578
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482 subplot_using::subplot_using (void) |
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1
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483 { |
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484 qualifier_count = 0; |
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872
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485 x[0] = x[1] = x[2] = x[3] = 0; |
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524
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486 scanf_fmt = 0; |
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872
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487 have_values = 0; |
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1
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488 } |
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489 |
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872
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490 subplot_using::subplot_using (tree_expression *fmt) : val (4, -1) |
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1
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491 { |
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492 qualifier_count = 0; |
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872
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493 x[0] = x[1] = x[2] = x[3] = 0; |
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1
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494 scanf_fmt = fmt; |
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872
|
495 have_values = 0; |
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1
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496 } |
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497 |
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578
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498 subplot_using::~subplot_using (void) |
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1
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499 { |
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500 delete scanf_fmt; |
|
|
501 } |
|
|
502 |
|
578
|
503 subplot_using * |
|
|
504 subplot_using::set_format (tree_expression *fmt) |
|
1
|
505 { |
|
|
506 scanf_fmt = fmt; |
|
|
507 return this; |
|
|
508 } |
|
|
509 |
|
578
|
510 subplot_using * |
|
|
511 subplot_using::add_qualifier (tree_expression *t) |
|
1
|
512 { |
|
|
513 if (qualifier_count < 4) |
|
|
514 x[qualifier_count] = t; |
|
|
515 |
|
|
516 qualifier_count++; |
|
|
517 |
|
|
518 return this; |
|
|
519 } |
|
|
520 |
|
|
521 int |
|
872
|
522 subplot_using::eval (int ndim, int n_max) |
|
1
|
523 { |
|
|
524 if ((ndim == 2 && qualifier_count > 4) |
|
|
525 || (ndim == 3 && qualifier_count > 3)) |
|
|
526 return -1; |
|
|
527 |
|
872
|
528 if (have_values) |
|
|
529 return 1; |
|
|
530 |
|
|
531 if (qualifier_count > 0) |
|
|
532 val.resize (qualifier_count); |
|
|
533 |
|
1
|
534 for (int i = 0; i < qualifier_count; i++) |
|
|
535 { |
|
524
|
536 if (x[i]) |
|
1
|
537 { |
|
|
538 tree_constant tmp = x[i]->eval (0); |
|
191
|
539 if (error_state) |
|
|
540 { |
|
240
|
541 ::error ("evaluating plot using command"); |
|
191
|
542 return -1; |
|
|
543 } |
|
|
544 |
|
872
|
545 double val_tmp; |
|
1
|
546 if (tmp.is_defined ()) |
|
|
547 { |
|
872
|
548 val_tmp = tmp.double_value (); |
|
1
|
549 |
|
872
|
550 if (error_state) |
|
|
551 return -1; |
|
1
|
552 |
|
872
|
553 int n = NINT (val_tmp); |
|
322
|
554 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
555 { |
|
240
|
556 ::error ("using: column %d out of range", n); |
|
1
|
557 return -1; |
|
|
558 } |
|
|
559 else |
|
872
|
560 val.elem (i) = n; |
|
1
|
561 } |
|
|
562 else |
|
|
563 return -1; |
|
|
564 } |
|
|
565 else |
|
|
566 return -1; |
|
|
567 } |
|
|
568 |
|
524
|
569 if (scanf_fmt) |
|
1
|
570 warning ("ignoring scanf format in plot command"); |
|
|
571 |
|
872
|
572 have_values = 1; |
|
|
573 |
|
|
574 return 0; |
|
|
575 } |
|
|
576 |
|
|
577 ColumnVector |
|
|
578 subplot_using::values (int ndim, int n_max) |
|
|
579 { |
|
|
580 int status = eval (ndim, n_max); |
|
|
581 |
|
|
582 if (status < 0 || ! have_values) |
|
|
583 return -1; |
|
|
584 |
|
|
585 return val; |
|
|
586 } |
|
|
587 |
|
|
588 int |
|
|
589 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
590 { |
|
|
591 int status = eval (ndim, n_max); |
|
|
592 |
|
|
593 if (status < 0 || ! have_values) |
|
|
594 return -1; |
|
|
595 |
|
|
596 for (int i = 0; i < qualifier_count; i++) |
|
|
597 { |
|
|
598 if (i == 0) |
|
|
599 plot_buf << " " << GNUPLOT_COMMAND_USING << " "; |
|
|
600 else |
|
|
601 plot_buf << ":"; |
|
|
602 |
|
|
603 plot_buf << val.elem (i); |
|
|
604 } |
|
|
605 |
|
1
|
606 return 0; |
|
|
607 } |
|
|
608 |
|
591
|
609 void |
|
|
610 subplot_using::print_code (ostream& os) |
|
|
611 { |
|
|
612 os << " using "; |
|
|
613 for (int i = 0; i < qualifier_count; i++) |
|
|
614 { |
|
|
615 if (i > 0) |
|
|
616 os << ":"; |
|
|
617 |
|
|
618 if (x[i]) |
|
|
619 x[i]->print_code (os); |
|
|
620 } |
|
|
621 } |
|
|
622 |
|
578
|
623 subplot_style::subplot_style (void) |
|
1
|
624 { |
|
524
|
625 style = 0; |
|
|
626 linetype = 0; |
|
|
627 pointtype = 0; |
|
1
|
628 } |
|
|
629 |
|
578
|
630 subplot_style::subplot_style (char *s) |
|
1
|
631 { |
|
|
632 style = strsave (s); |
|
524
|
633 linetype = 0; |
|
|
634 pointtype = 0; |
|
1
|
635 } |
|
|
636 |
|
578
|
637 subplot_style::subplot_style (char *s, tree_expression *lt) |
|
1
|
638 { |
|
|
639 style = strsave (s); |
|
|
640 linetype = lt; |
|
524
|
641 pointtype = 0; |
|
1
|
642 } |
|
|
643 |
|
578
|
644 subplot_style::subplot_style (char *s, tree_expression *lt, |
|
491
|
645 tree_expression *pt) |
|
1
|
646 { |
|
|
647 style = strsave (s); |
|
|
648 linetype = lt; |
|
|
649 pointtype = pt; |
|
|
650 } |
|
|
651 |
|
578
|
652 subplot_style::~subplot_style (void) |
|
1
|
653 { |
|
|
654 delete [] style; |
|
|
655 delete linetype; |
|
|
656 delete pointtype; |
|
|
657 } |
|
|
658 |
|
|
659 int |
|
578
|
660 subplot_style::print (ostrstream& plot_buf) |
|
1
|
661 { |
|
524
|
662 if (style) |
|
1
|
663 { |
|
866
|
664 plot_buf << " " << GNUPLOT_COMMAND_WITH << " " << style; |
|
1
|
665 |
|
524
|
666 if (linetype) |
|
1
|
667 { |
|
|
668 tree_constant tmp = linetype->eval (0); |
|
191
|
669 if (! error_state && tmp.is_defined ()) |
|
1
|
670 { |
|
629
|
671 double val = tmp.double_value (); |
|
1
|
672 plot_buf << " " << NINT (val); |
|
|
673 } |
|
|
674 else |
|
191
|
675 { |
|
240
|
676 ::error ("evaluating plot style command"); |
|
191
|
677 return -1; |
|
|
678 } |
|
1
|
679 } |
|
|
680 |
|
524
|
681 if (pointtype) |
|
1
|
682 { |
|
|
683 tree_constant tmp = pointtype->eval (0); |
|
191
|
684 if (! error_state && tmp.is_defined ()) |
|
1
|
685 { |
|
629
|
686 double val = tmp.double_value (); |
|
1
|
687 plot_buf << " " << NINT (val); |
|
|
688 } |
|
|
689 else |
|
191
|
690 { |
|
240
|
691 ::error ("evaluating plot style command"); |
|
191
|
692 return -1; |
|
|
693 } |
|
1
|
694 } |
|
|
695 } |
|
|
696 else |
|
|
697 return -1; |
|
|
698 |
|
|
699 return 0; |
|
|
700 } |
|
|
701 |
|
872
|
702 int |
|
|
703 subplot_style::errorbars (void) |
|
|
704 { |
|
|
705 return (style |
|
|
706 && (almost_match ("errorbars", style, 1, 0) |
|
|
707 || almost_match ("boxerrorbars", style, 5, 0))); |
|
|
708 } |
|
|
709 |
|
591
|
710 void |
|
|
711 subplot_style::print_code (ostream& os) |
|
|
712 { |
|
|
713 os << " with " << style; |
|
|
714 |
|
|
715 if (linetype) |
|
|
716 { |
|
|
717 os << " "; |
|
|
718 linetype->print_code (os); |
|
|
719 } |
|
|
720 |
|
|
721 if (pointtype) |
|
|
722 { |
|
|
723 os << " "; |
|
|
724 pointtype->print_code (os); |
|
|
725 } |
|
|
726 } |
|
|
727 |
|
872
|
728 tree_constant |
|
|
729 subplot::extract_plot_data (int ndim, tree_constant& data) |
|
|
730 { |
|
|
731 tree_constant retval; |
|
|
732 |
|
|
733 if (using) |
|
|
734 { |
|
|
735 ColumnVector val = using->values (ndim); |
|
|
736 |
|
|
737 Octave_object args; |
|
|
738 args(1) = val; |
|
|
739 args(0) = tree_constant::magic_colon_t; |
|
|
740 |
|
|
741 Octave_object tmp = data.eval (0, 1, args); |
|
|
742 retval = tmp(0); |
|
|
743 |
|
|
744 if (error_state) |
|
|
745 return tree_constant (); |
|
|
746 } |
|
|
747 else |
|
|
748 { |
|
|
749 retval = data; |
|
|
750 } |
|
|
751 |
|
|
752 if (ndim == 2 && style && style->errorbars ()) |
|
|
753 { |
|
|
754 int nc = retval.columns (); |
|
|
755 |
|
|
756 if (nc < 3 || nc > 4) |
|
|
757 { |
|
|
758 error ("plots with errorbars require 3 or 4 columns of data"); |
|
|
759 error ("but %d were provided", nc); |
|
|
760 return tree_constant (); |
|
|
761 } |
|
|
762 } |
|
|
763 |
|
|
764 return retval; |
|
|
765 } |
|
|
766 |
|
591
|
767 int |
|
872
|
768 subplot::handle_plot_data (int ndim, ostrstream& plot_buf) |
|
591
|
769 { |
|
|
770 if (plot_data) |
|
|
771 { |
|
|
772 tree_constant data = plot_data->eval (0); |
|
872
|
773 |
|
591
|
774 if (! error_state && data.is_defined ()) |
|
|
775 { |
|
|
776 char *file = 0; |
|
610
|
777 if (data.is_string ()) |
|
591
|
778 { |
|
872
|
779 // Should really try to look at data file to determine n_max. Can't |
|
|
780 // do much about other arbitrary gnuplot commands though... |
|
|
781 |
|
|
782 int n_max = 0; |
|
|
783 |
|
591
|
784 file = tilde_expand (data.string_value ()); |
|
|
785 ifstream ftmp (file); |
|
|
786 if (ftmp) |
|
|
787 { |
|
|
788 plot_buf << " \"" << file << '"'; |
|
|
789 free (file); |
|
|
790 } |
|
|
791 else |
|
|
792 { |
|
|
793 free (file); |
|
|
794 file = 0; |
|
|
795 |
|
|
796 // Opening as a file failed. Let's try passing it along as a plot |
|
|
797 // command. |
|
|
798 plot_buf << " " << data.string_value (); |
|
872
|
799 } |
|
|
800 |
|
|
801 if (using) |
|
|
802 { |
|
|
803 int status = using->print (ndim, n_max, plot_buf); |
|
|
804 if (status < 0) |
|
|
805 return -1; |
|
591
|
806 } |
|
|
807 } |
|
872
|
808 else |
|
591
|
809 { |
|
872
|
810 // Eliminate the need for printing a using clause to plot_buf. |
|
|
811 |
|
|
812 tree_constant tmp_data = extract_plot_data (ndim, data); |
|
|
813 |
|
|
814 if (tmp_data.is_defined ()) |
|
|
815 { |
|
|
816 switch (ndim) |
|
|
817 { |
|
|
818 case 2: |
|
|
819 file = save_in_tmp_file (tmp_data, ndim); |
|
|
820 break; |
|
777
|
821 |
|
872
|
822 case 3: |
|
|
823 file = save_in_tmp_file (tmp_data, ndim, |
|
|
824 parametric_plot); |
|
|
825 break; |
|
777
|
826 |
|
872
|
827 default: |
|
|
828 gripe_2_or_3_dim_plot (); |
|
|
829 break; |
|
|
830 } |
|
591
|
831 |
|
872
|
832 if (file) |
|
|
833 { |
|
|
834 mark_for_deletion (file); |
|
|
835 plot_buf << " \"" << file << '"'; |
|
|
836 } |
|
|
837 } |
|
591
|
838 } |
|
|
839 } |
|
|
840 else |
|
|
841 return -1; |
|
|
842 } |
|
|
843 else |
|
|
844 return -1; |
|
|
845 |
|
872
|
846 return 0; |
|
|
847 } |
|
591
|
848 |
|
872
|
849 int |
|
|
850 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
851 { |
|
|
852 int status = handle_plot_data (ndim, plot_buf); |
|
|
853 |
|
|
854 if (status < 0) |
|
|
855 return -1; |
|
591
|
856 |
|
|
857 if (title) |
|
|
858 { |
|
|
859 tree_constant tmp = title->eval (0); |
|
610
|
860 if (! error_state && tmp.is_string ()) |
|
866
|
861 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
862 << '"' << tmp.string_value () << '"'; |
|
591
|
863 else |
|
|
864 { |
|
|
865 warning ("line title must be a string"); |
|
866
|
866 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
867 << '"' << "line " << plot_line_count << '"'; |
|
591
|
868 } |
|
|
869 } |
|
|
870 else |
|
866
|
871 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
872 << '"' << "line " << plot_line_count << '"'; |
|
591
|
873 |
|
|
874 if (style) |
|
|
875 { |
|
|
876 int status = style->print (plot_buf); |
|
|
877 if (status < 0) |
|
|
878 return -1; |
|
|
879 } |
|
|
880 |
|
|
881 return 0; |
|
|
882 } |
|
|
883 |
|
|
884 void |
|
|
885 subplot::print_code (ostream& os) |
|
|
886 { |
|
|
887 if (plot_data) |
|
592
|
888 { |
|
|
889 os << " "; |
|
|
890 plot_data->print_code (os); |
|
|
891 } |
|
591
|
892 |
|
|
893 if (using) |
|
|
894 using->print_code (os); |
|
|
895 |
|
|
896 if (title) |
|
|
897 title->print_code (os); |
|
|
898 |
|
|
899 if (style) |
|
|
900 style->print_code (os); |
|
|
901 } |
|
|
902 |
|
|
903 int |
|
|
904 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
905 { |
|
|
906 int status = 0; |
|
|
907 |
|
|
908 for (Pix p = first (); p != 0; next (p)) |
|
|
909 { |
|
|
910 subplot *elt = this->operator () (p); |
|
|
911 |
|
|
912 plot_line_count++; |
|
|
913 |
|
|
914 if (p != first ()) |
|
|
915 plot_buf << ",\\\n "; |
|
|
916 |
|
|
917 status = elt->print (ndim, plot_buf); |
|
|
918 |
|
|
919 if (status < 0) |
|
|
920 break; |
|
|
921 } |
|
|
922 |
|
|
923 return status; |
|
|
924 } |
|
|
925 |
|
|
926 void |
|
|
927 subplot_list::print_code (ostream& os) |
|
|
928 { |
|
|
929 Pix p = first (); |
|
|
930 |
|
|
931 while (p) |
|
|
932 { |
|
|
933 subplot *elt = this->operator () (p); |
|
|
934 |
|
|
935 next (p); |
|
|
936 |
|
|
937 if (elt) |
|
|
938 { |
|
|
939 elt->print_code (os); |
|
|
940 |
|
|
941 if (p) |
|
592
|
942 os << ","; |
|
591
|
943 } |
|
|
944 } |
|
|
945 } |
|
|
946 |
|
524
|
947 char * |
|
|
948 save_in_tmp_file (tree_constant& t, int ndim, int parametric) |
|
|
949 { |
|
662
|
950 char *name = octave_tmp_file_name (); |
|
524
|
951 if (name) |
|
|
952 { |
|
|
953 ofstream file (name); |
|
|
954 if (file) |
|
|
955 { |
|
|
956 switch (ndim) |
|
|
957 { |
|
|
958 case 2: |
|
871
|
959 save_ascii_data (file, t, 0, 1); |
|
524
|
960 break; |
|
777
|
961 |
|
524
|
962 case 3: |
|
607
|
963 save_three_d (file, t, parametric); |
|
524
|
964 break; |
|
777
|
965 |
|
524
|
966 default: |
|
771
|
967 gripe_2_or_3_dim_plot (); |
|
524
|
968 break; |
|
|
969 } |
|
|
970 } |
|
|
971 else |
|
|
972 { |
|
|
973 error ("couldn't open temporary output file `%s'", name); |
|
|
974 name = 0; |
|
|
975 } |
|
|
976 } |
|
|
977 return name; |
|
|
978 } |
|
|
979 |
|
|
980 void |
|
|
981 mark_for_deletion (const char *filename) |
|
|
982 { |
|
|
983 char *tmp = strsave (filename); |
|
|
984 tmp_files.push (tmp); |
|
|
985 } |
|
|
986 |
|
|
987 void |
|
|
988 cleanup_tmp_files (void) |
|
|
989 { |
|
|
990 while (! tmp_files.empty ()) |
|
|
991 { |
|
|
992 char *filename = tmp_files.pop (); |
|
|
993 unlink (filename); |
|
|
994 delete [] filename; |
|
|
995 } |
|
|
996 } |
|
|
997 |
|
|
998 void |
|
|
999 close_plot_stream (void) |
|
|
1000 { |
|
|
1001 if (plot_stream.is_open ()) |
|
|
1002 plot_stream.close (); |
|
|
1003 |
|
|
1004 plot_line_count = 0; |
|
|
1005 } |
|
|
1006 |
|
|
1007 DEFUN ("closeplot", Fcloseplot, Scloseplot, 1, 0, |
|
|
1008 "closeplot (): close the stream to plotter") |
|
|
1009 { |
|
|
1010 Octave_object retval; |
|
|
1011 close_plot_stream (); |
|
|
1012 return retval; |
|
|
1013 } |
|
|
1014 |
|
|
1015 DEFUN_TEXT ("hold", Fhold, Shold, -1, 1, |
|
|
1016 "hold [on|off]\n\ |
|
|
1017 \n\ |
|
|
1018 determine whether the plot window is cleared before the next line is\n\ |
|
|
1019 drawn. With no argument, toggle the current state.") |
|
|
1020 { |
|
|
1021 Octave_object retval; |
|
|
1022 |
|
|
1023 DEFINE_ARGV("hold"); |
|
|
1024 |
|
|
1025 switch (argc) |
|
|
1026 { |
|
|
1027 case 1: |
|
|
1028 clear_before_plotting = ! clear_before_plotting; |
|
|
1029 break; |
|
777
|
1030 |
|
524
|
1031 case 2: |
|
|
1032 if (strcasecmp (argv[1], "on") == 0) |
|
|
1033 clear_before_plotting = 0; |
|
|
1034 else if (strcasecmp (argv[1], "off") == 0) |
|
|
1035 clear_before_plotting = 1; |
|
|
1036 else |
|
|
1037 print_usage ("hold"); |
|
|
1038 break; |
|
777
|
1039 |
|
524
|
1040 default: |
|
|
1041 print_usage ("hold"); |
|
|
1042 break; |
|
|
1043 } |
|
|
1044 |
|
|
1045 DELETE_ARGV; |
|
|
1046 |
|
|
1047 return retval; |
|
|
1048 } |
|
|
1049 |
|
735
|
1050 DEFUN ("ishold", Fishold, Sishold, 0, 1, |
|
|
1051 "ishold\n\ |
|
|
1052 \n\ |
|
|
1053 Return 1 if hold is on, otherwise return 0.") |
|
|
1054 { |
|
|
1055 return (double) (! clear_before_plotting); |
|
|
1056 } |
|
|
1057 |
|
524
|
1058 DEFUN ("purge_tmp_files", Fpurge_tmp_files, Spurge_tmp_files, 5, 1, |
|
|
1059 "delete temporary data files used for plotting") |
|
|
1060 { |
|
|
1061 Octave_object retval; |
|
|
1062 cleanup_tmp_files (); |
|
|
1063 return retval; |
|
|
1064 } |
|
|
1065 |
|
|
1066 DEFUN_TEXT ("set", Fset, Sset, -1, 1, |
|
|
1067 "set [options]\n\ |
|
|
1068 \n\ |
|
|
1069 set plotting options") |
|
|
1070 { |
|
|
1071 Octave_object retval; |
|
|
1072 |
|
|
1073 DEFINE_ARGV("set"); |
|
|
1074 |
|
|
1075 ostrstream plot_buf; |
|
|
1076 |
|
|
1077 if (argc > 1) |
|
|
1078 { |
|
|
1079 if (almost_match ("parametric", argv[1], 3)) |
|
|
1080 parametric_plot = 1; |
|
|
1081 else if (almost_match ("noparametric", argv[1], 5)) |
|
|
1082 parametric_plot = 0; |
|
|
1083 } |
|
|
1084 |
|
|
1085 for (int i = 0; i < argc; i++) |
|
|
1086 plot_buf << argv[i] << " "; |
|
|
1087 |
|
|
1088 plot_buf << "\n" << ends; |
|
|
1089 |
|
|
1090 char *plot_command = plot_buf.str (); |
|
|
1091 send_to_plot_stream (plot_command); |
|
|
1092 |
|
|
1093 delete [] plot_command; |
|
|
1094 |
|
|
1095 DELETE_ARGV; |
|
|
1096 |
|
|
1097 return retval; |
|
|
1098 } |
|
|
1099 |
|
|
1100 DEFUN_TEXT ("show", Fshow, Sshow, -1, 1, |
|
|
1101 "show [options]\n\ |
|
|
1102 \n\ |
|
|
1103 show plotting options") |
|
|
1104 { |
|
|
1105 Octave_object retval; |
|
|
1106 |
|
|
1107 DEFINE_ARGV("show"); |
|
|
1108 |
|
|
1109 ostrstream plot_buf; |
|
|
1110 |
|
|
1111 for (int i = 0; i < argc; i++) |
|
|
1112 plot_buf << argv[i] << " "; |
|
|
1113 |
|
|
1114 plot_buf << "\n" << ends; |
|
|
1115 |
|
|
1116 char *plot_command = plot_buf.str (); |
|
|
1117 send_to_plot_stream (plot_command); |
|
|
1118 |
|
|
1119 delete [] plot_command; |
|
|
1120 |
|
|
1121 DELETE_ARGV; |
|
|
1122 |
|
|
1123 return retval; |
|
|
1124 } |
|
|
1125 |
|
1
|
1126 /* |
|
|
1127 ;;; Local Variables: *** |
|
|
1128 ;;; mode: C++ *** |
|
|
1129 ;;; page-delimiter: "^/\\*" *** |
|
|
1130 ;;; End: *** |
|
|
1131 */ |
