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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 #include <sys/types.h> |
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29 #ifdef HAVE_UNISTD_H |
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30 #include <unistd.h> |
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31 #endif |
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597
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32 #include <string.h> |
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1
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33 #include <iostream.h> |
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597
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34 #include <strstream.h> |
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86
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35 #include <fstream.h> |
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36 |
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524
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37 #include "SLStack.h" |
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38 #include "procstream.h" |
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39 |
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40 #include "user-prefs.h" |
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584
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41 #include "tree-base.h" |
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42 #include "tree-expr.h" |
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43 #include "tree-cmd.h" |
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524
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44 #include "tree-const.h" |
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45 #include "tree-plot.h" |
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607
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46 #include "load-save.h" |
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543
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47 #include "help.h" |
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1
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48 #include "error.h" |
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777
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49 #include "gripes.h" |
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1
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50 #include "utils.h" |
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524
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51 #include "defun.h" |
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1
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52 |
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87
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53 extern "C" |
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54 { |
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581
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55 #include <readline/tilde.h> |
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87
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56 } |
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57 |
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1
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58 // The number of lines we\'ve plotted so far. |
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735
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59 static int plot_line_count = 0; |
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1
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60 |
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61 // Is this a parametric plot? Makes a difference for 3D plotting. |
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735
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62 static int parametric_plot = 0; |
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1
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63 |
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478
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64 // Should the graph window be cleared before plotting the next line? |
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735
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65 static int clear_before_plotting = 1; |
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478
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66 |
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524
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67 // List of files to delete when we exit or crash. |
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68 static SLStack <char *> tmp_files; |
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69 |
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70 // Pipe to gnuplot. |
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71 static oprocstream plot_stream; |
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72 |
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866
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73 // Use shortest possible abbreviations to minimize trouble caused by |
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74 // gnuplot's fixed-length command line buffer. |
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75 |
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76 #ifndef GNUPLOT_COMMAND_PLOT |
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77 #define GNUPLOT_COMMAND_PLOT "pl" |
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78 #endif |
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79 |
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80 #ifndef GNUPLOT_COMMAND_REPLOT |
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81 #define GNUPLOT_COMMAND_REPLOT "rep" |
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82 #endif |
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83 |
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84 #ifndef GNUPLOT_COMMAND_SPLOT |
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85 #define GNUPLOT_COMMAND_SPLOT "sp" |
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86 #endif |
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87 |
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88 #ifndef GNUPLOT_COMMAND_USING |
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89 #define GNUPLOT_COMMAND_USING "u" |
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90 #endif |
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91 |
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92 #ifndef GNUPLOT_COMMAND_WITH |
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93 #define GNUPLOT_COMMAND_WITH "w" |
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94 #endif |
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95 |
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96 #ifndef GNUPLOT_COMMAND_TITLE |
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97 #define GNUPLOT_COMMAND_TITLE "t" |
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98 #endif |
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99 |
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597
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100 static void |
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101 open_plot_stream (void) |
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102 { |
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103 static int initialized = 0; |
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104 |
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105 if (! plot_stream.is_open ()) |
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106 { |
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107 plot_line_count = 0; |
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108 |
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109 char *plot_prog = user_pref.gnuplot_binary; |
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110 if (plot_prog) |
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111 { |
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112 plot_stream.open (plot_prog); |
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113 if (! plot_stream.is_open ()) |
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114 { |
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115 warning ("plot: unable to open pipe to `%s'", |
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116 plot_prog); |
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117 |
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118 if (strcmp (plot_prog, "gnuplot") != 0) |
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119 { |
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120 warning ("having trouble finding plotting program."); |
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121 warning ("trying again with `gnuplot'"); |
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122 goto last_chance; |
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123 } |
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124 } |
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125 } |
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126 else |
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127 { |
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128 last_chance: |
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129 |
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130 plot_stream.open ("gnuplot"); |
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131 |
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132 if (! plot_stream.is_open ()) |
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133 error ("plot: unable to open pipe to `%s'", plot_prog); |
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134 } |
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135 } |
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136 |
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137 if (! initialized) |
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138 { |
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139 initialized = 1; |
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140 plot_stream << "set data style lines\n"; |
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141 } |
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142 } |
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143 |
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144 static int |
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145 send_to_plot_stream (const char *cmd) |
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146 { |
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147 // From sighandlers.cc: |
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148 extern int pipe_handler_error_count; |
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149 |
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150 if (! plot_stream.is_open ()) |
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151 { |
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152 open_plot_stream (); |
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153 |
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154 if (error_state) |
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155 return -1; |
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156 } |
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157 |
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661
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158 int is_replot = (strncmp (cmd, "replot", 6) == 0); |
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159 int is_splot = (strncmp (cmd, "splot", 5) == 0); |
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160 int is_plot = (strncmp (cmd, "plot", 4) == 0); |
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161 |
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162 if (plot_line_count == 0 && is_replot) |
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597
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163 error ("replot: no previous plot"); |
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164 else |
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165 { |
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166 plot_stream << cmd; |
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661
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167 if (! (is_replot || is_splot || is_plot) |
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168 && plot_line_count > 0 |
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169 && user_pref.automatic_replot) |
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866
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170 plot_stream << GNUPLOT_COMMAND_REPLOT << "\n"; |
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597
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171 plot_stream.flush (); |
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172 pipe_handler_error_count = 0; |
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173 } |
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174 |
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175 return 0; |
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176 } |
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177 |
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581
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178 // Plotting, eh? |
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1
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179 |
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581
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180 tree_plot_command::tree_plot_command (void) : tree_command () |
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1
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181 { |
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524
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182 range = 0; |
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183 plot_list = 0; |
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1
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184 ndim = 0; |
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185 } |
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186 |
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578
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187 tree_plot_command::tree_plot_command (subplot_list *plt, int nd) |
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581
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188 : tree_command () |
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1
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189 { |
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524
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190 range = 0; |
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1
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191 plot_list = plt; |
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192 ndim = nd; |
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193 } |
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194 |
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578
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195 tree_plot_command::tree_plot_command (subplot_list *plt, |
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196 plot_limits *rng, int nd) |
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581
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197 : tree_command () |
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1
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198 { |
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199 range = rng; |
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200 plot_list = plt; |
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201 ndim = nd; |
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202 } |
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203 |
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204 tree_plot_command::~tree_plot_command (void) |
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205 { |
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206 delete range; |
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207 delete plot_list; |
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208 } |
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209 |
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578
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210 void |
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211 tree_plot_command::eval (void) |
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1
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212 { |
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143
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213 if (error_state) |
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578
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214 return; |
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143
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215 |
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597
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216 open_plot_stream (); |
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217 |
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1
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218 ostrstream plot_buf; |
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219 |
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220 switch (ndim) |
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221 { |
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476
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222 case 1: |
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478
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223 if (plot_line_count == 0) |
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224 { |
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225 if (plot_list) |
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866
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226 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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227 else |
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228 { |
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229 ::error ("replot: must have something to plot"); |
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578
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230 return; |
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478
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231 } |
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232 } |
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233 else |
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866
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234 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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476
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235 break; |
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777
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236 |
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1
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237 case 2: |
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478
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238 if (clear_before_plotting || plot_line_count == 0) |
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239 { |
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240 plot_line_count = 0; |
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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 } |
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243 else |
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244 plot_buf << "replot"; |
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1
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245 break; |
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777
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246 |
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1
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247 case 3: |
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478
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248 { |
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249 plot_line_count = 0; |
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866
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250 plot_buf << GNUPLOT_COMMAND_SPLOT; |
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478
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251 } |
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1
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252 break; |
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777
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253 |
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1
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254 default: |
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771
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255 gripe_2_or_3_dim_plot (); |
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256 return; |
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1
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257 } |
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258 |
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524
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259 if (range) |
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478
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260 { |
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261 if (plot_line_count == 0) |
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262 range->print (ndim, plot_buf); |
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263 else |
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264 warning ("can't specify new plot ranges with `replot' or while\ |
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265 hold is on"); |
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266 } |
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1
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267 |
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191
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268 if (error_state) |
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578
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269 return; |
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191
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270 |
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591
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271 if (plot_list) |
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1
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272 { |
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591
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273 int status = plot_list->print (ndim, plot_buf); |
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578
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274 |
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771
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275 if (error_state || status < 0) |
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578
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276 return; |
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1
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277 } |
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278 |
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279 plot_buf << "\n" << ends; |
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280 |
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281 // Just testing... |
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282 // char *message = plot_buf.str (); |
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283 // cout << "[*]" << message << "[*]\n"; |
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284 |
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285 if (parametric_plot && ndim == 2) |
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286 { |
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287 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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288 send_to_plot_stream ("set noparametric\n"); |
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289 char *message = plot_buf.str (); |
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290 send_to_plot_stream (message); |
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291 delete [] message; |
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292 send_to_plot_stream ("set parametric\n"); |
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293 } |
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294 else |
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295 { |
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296 char *message = plot_buf.str (); |
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297 send_to_plot_stream (message); |
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298 delete [] message; |
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299 } |
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300 } |
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301 |
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591
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302 void |
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303 tree_plot_command::print_code (ostream& os) |
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1
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304 { |
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591
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305 print_code_indent (os); |
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86
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306 |
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591
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307 switch (ndim) |
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1
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308 { |
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591
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309 case 1: |
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310 os << "replot"; |
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311 break; |
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777
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312 |
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591
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313 case 2: |
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314 os << "gplot"; |
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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 3: |
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318 os << "gsplot"; |
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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 default: |
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771
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322 os << "<unkown plot command>"; |
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591
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323 break; |
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1
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324 } |
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325 |
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591
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326 if (range) |
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327 range->print_code (os); |
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1
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328 |
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591
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329 if (plot_list) |
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330 plot_list->print_code (os); |
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1
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331 } |
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332 |
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578
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333 plot_limits::plot_limits (void) |
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1
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334 { |
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524
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335 x_range = 0; |
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336 y_range = 0; |
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337 z_range = 0; |
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1
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338 } |
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339 |
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578
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340 plot_limits::plot_limits (plot_range *xlim) |
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1
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341 { |
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342 x_range = xlim; |
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524
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343 y_range = 0; |
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344 z_range = 0; |
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1
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345 } |
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346 |
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578
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347 plot_limits::plot_limits (plot_range *xlim, |
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348 plot_range *ylim) |
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1
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349 { |
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350 x_range = xlim; |
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351 y_range = ylim; |
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524
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352 z_range = 0; |
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1
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353 } |
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354 |
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578
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355 plot_limits::plot_limits (plot_range *xlim, |
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356 plot_range *ylim, |
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357 plot_range *zlim) |
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1
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358 { |
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359 x_range = xlim; |
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360 y_range = ylim; |
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361 z_range = zlim; |
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362 } |
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363 |
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578
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364 plot_limits::~plot_limits (void) |
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1
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365 { |
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366 delete x_range; |
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367 delete y_range; |
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368 delete z_range; |
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369 } |
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370 |
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371 void |
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578
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372 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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373 { |
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374 if (ndim == 2 || ndim == 3) |
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375 { |
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524
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376 if (x_range) |
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1
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377 x_range->print (plot_buf); |
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378 else |
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379 return; |
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380 |
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524
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381 if (y_range) |
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1
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382 y_range->print (plot_buf); |
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383 else |
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384 return; |
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385 } |
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386 |
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524
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387 if (ndim == 3 && z_range) |
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1
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388 z_range->print (plot_buf); |
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389 } |
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390 |
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591
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391 void |
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392 plot_limits::print_code (ostream& os) |
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393 { |
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394 if (x_range) |
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395 x_range->print_code (os); |
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396 |
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397 if (y_range) |
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398 y_range->print_code (os); |
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399 |
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400 if (z_range) |
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401 z_range->print_code (os); |
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402 } |
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403 |
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578
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404 plot_range::plot_range (void) |
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1
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405 { |
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524
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406 lower = 0; |
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407 upper = 0; |
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1
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408 } |
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409 |
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578
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410 plot_range::plot_range (tree_expression *l, tree_expression *u) |
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1
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411 { |
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412 lower = l; |
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413 upper = u; |
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414 } |
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415 |
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578
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416 plot_range::~plot_range (void) |
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1
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417 { |
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418 delete lower; |
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419 delete upper; |
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420 } |
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421 |
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422 void |
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578
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423 plot_range::print (ostrstream& plot_buf) |
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1
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424 { |
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425 plot_buf << " ["; |
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426 |
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524
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427 if (lower) |
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1
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428 { |
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429 tree_constant lower_val = lower->eval (0); |
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191
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430 if (error_state) |
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431 { |
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240
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432 ::error ("evaluating lower bound of plot range"); |
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191
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433 return; |
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434 } |
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435 else |
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436 { |
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629
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437 double lo = lower_val.double_value (); |
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191
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438 plot_buf << lo; |
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439 } |
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1
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440 } |
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441 |
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442 plot_buf << ":"; |
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443 |
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524
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444 if (upper) |
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1
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445 { |
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446 tree_constant upper_val = upper->eval (0); |
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191
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447 if (error_state) |
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448 { |
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240
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449 ::error ("evaluating upper bound of plot range"); |
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191
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450 return; |
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451 } |
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452 else |
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453 { |
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629
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454 double hi = upper_val.double_value (); |
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191
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455 plot_buf << hi; |
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456 } |
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1
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457 } |
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458 |
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459 plot_buf << "]"; |
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460 } |
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461 |
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591
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462 void |
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463 plot_range::print_code (ostream& os) |
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464 { |
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465 os << " ["; |
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466 |
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467 if (lower) |
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468 lower->print_code (os); |
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469 |
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470 os << ":"; |
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471 |
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472 if (upper) |
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473 upper->print_code (os); |
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474 |
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475 os << "]"; |
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476 } |
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477 |
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578
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478 subplot_using::subplot_using (void) |
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1
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479 { |
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480 qualifier_count = 0; |
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872
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481 x[0] = x[1] = x[2] = x[3] = 0; |
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524
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482 scanf_fmt = 0; |
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872
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483 have_values = 0; |
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1
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484 } |
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485 |
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872
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486 subplot_using::subplot_using (tree_expression *fmt) : val (4, -1) |
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1
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487 { |
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488 qualifier_count = 0; |
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872
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489 x[0] = x[1] = x[2] = x[3] = 0; |
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1
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490 scanf_fmt = fmt; |
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872
|
491 have_values = 0; |
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1
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492 } |
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493 |
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578
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494 subplot_using::~subplot_using (void) |
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1
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495 { |
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496 delete scanf_fmt; |
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497 } |
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498 |
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578
|
499 subplot_using * |
|
|
500 subplot_using::set_format (tree_expression *fmt) |
|
1
|
501 { |
|
|
502 scanf_fmt = fmt; |
|
|
503 return this; |
|
|
504 } |
|
|
505 |
|
578
|
506 subplot_using * |
|
|
507 subplot_using::add_qualifier (tree_expression *t) |
|
1
|
508 { |
|
|
509 if (qualifier_count < 4) |
|
|
510 x[qualifier_count] = t; |
|
|
511 |
|
|
512 qualifier_count++; |
|
|
513 |
|
|
514 return this; |
|
|
515 } |
|
|
516 |
|
|
517 int |
|
872
|
518 subplot_using::eval (int ndim, int n_max) |
|
1
|
519 { |
|
|
520 if ((ndim == 2 && qualifier_count > 4) |
|
|
521 || (ndim == 3 && qualifier_count > 3)) |
|
|
522 return -1; |
|
|
523 |
|
872
|
524 if (have_values) |
|
|
525 return 1; |
|
|
526 |
|
|
527 if (qualifier_count > 0) |
|
|
528 val.resize (qualifier_count); |
|
|
529 |
|
1
|
530 for (int i = 0; i < qualifier_count; i++) |
|
|
531 { |
|
524
|
532 if (x[i]) |
|
1
|
533 { |
|
|
534 tree_constant tmp = x[i]->eval (0); |
|
191
|
535 if (error_state) |
|
|
536 { |
|
240
|
537 ::error ("evaluating plot using command"); |
|
191
|
538 return -1; |
|
|
539 } |
|
|
540 |
|
872
|
541 double val_tmp; |
|
1
|
542 if (tmp.is_defined ()) |
|
|
543 { |
|
872
|
544 val_tmp = tmp.double_value (); |
|
1
|
545 |
|
872
|
546 if (error_state) |
|
|
547 return -1; |
|
1
|
548 |
|
872
|
549 int n = NINT (val_tmp); |
|
322
|
550 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
551 { |
|
240
|
552 ::error ("using: column %d out of range", n); |
|
1
|
553 return -1; |
|
|
554 } |
|
|
555 else |
|
872
|
556 val.elem (i) = n; |
|
1
|
557 } |
|
|
558 else |
|
|
559 return -1; |
|
|
560 } |
|
|
561 else |
|
|
562 return -1; |
|
|
563 } |
|
|
564 |
|
524
|
565 if (scanf_fmt) |
|
1
|
566 warning ("ignoring scanf format in plot command"); |
|
|
567 |
|
872
|
568 have_values = 1; |
|
|
569 |
|
|
570 return 0; |
|
|
571 } |
|
|
572 |
|
|
573 ColumnVector |
|
|
574 subplot_using::values (int ndim, int n_max) |
|
|
575 { |
|
|
576 int status = eval (ndim, n_max); |
|
|
577 |
|
|
578 if (status < 0 || ! have_values) |
|
|
579 return -1; |
|
|
580 |
|
|
581 return val; |
|
|
582 } |
|
|
583 |
|
|
584 int |
|
|
585 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
586 { |
|
|
587 int status = eval (ndim, n_max); |
|
|
588 |
|
|
589 if (status < 0 || ! have_values) |
|
|
590 return -1; |
|
|
591 |
|
|
592 for (int i = 0; i < qualifier_count; i++) |
|
|
593 { |
|
|
594 if (i == 0) |
|
|
595 plot_buf << " " << GNUPLOT_COMMAND_USING << " "; |
|
|
596 else |
|
|
597 plot_buf << ":"; |
|
|
598 |
|
|
599 plot_buf << val.elem (i); |
|
|
600 } |
|
|
601 |
|
1
|
602 return 0; |
|
|
603 } |
|
|
604 |
|
591
|
605 void |
|
|
606 subplot_using::print_code (ostream& os) |
|
|
607 { |
|
|
608 os << " using "; |
|
|
609 for (int i = 0; i < qualifier_count; i++) |
|
|
610 { |
|
|
611 if (i > 0) |
|
|
612 os << ":"; |
|
|
613 |
|
|
614 if (x[i]) |
|
|
615 x[i]->print_code (os); |
|
|
616 } |
|
|
617 } |
|
|
618 |
|
578
|
619 subplot_style::subplot_style (void) |
|
1
|
620 { |
|
524
|
621 style = 0; |
|
|
622 linetype = 0; |
|
|
623 pointtype = 0; |
|
1
|
624 } |
|
|
625 |
|
578
|
626 subplot_style::subplot_style (char *s) |
|
1
|
627 { |
|
|
628 style = strsave (s); |
|
524
|
629 linetype = 0; |
|
|
630 pointtype = 0; |
|
1
|
631 } |
|
|
632 |
|
578
|
633 subplot_style::subplot_style (char *s, tree_expression *lt) |
|
1
|
634 { |
|
|
635 style = strsave (s); |
|
|
636 linetype = lt; |
|
524
|
637 pointtype = 0; |
|
1
|
638 } |
|
|
639 |
|
578
|
640 subplot_style::subplot_style (char *s, tree_expression *lt, |
|
491
|
641 tree_expression *pt) |
|
1
|
642 { |
|
|
643 style = strsave (s); |
|
|
644 linetype = lt; |
|
|
645 pointtype = pt; |
|
|
646 } |
|
|
647 |
|
578
|
648 subplot_style::~subplot_style (void) |
|
1
|
649 { |
|
|
650 delete [] style; |
|
|
651 delete linetype; |
|
|
652 delete pointtype; |
|
|
653 } |
|
|
654 |
|
|
655 int |
|
578
|
656 subplot_style::print (ostrstream& plot_buf) |
|
1
|
657 { |
|
524
|
658 if (style) |
|
1
|
659 { |
|
866
|
660 plot_buf << " " << GNUPLOT_COMMAND_WITH << " " << style; |
|
1
|
661 |
|
524
|
662 if (linetype) |
|
1
|
663 { |
|
|
664 tree_constant tmp = linetype->eval (0); |
|
191
|
665 if (! error_state && tmp.is_defined ()) |
|
1
|
666 { |
|
629
|
667 double val = tmp.double_value (); |
|
1
|
668 plot_buf << " " << NINT (val); |
|
|
669 } |
|
|
670 else |
|
191
|
671 { |
|
240
|
672 ::error ("evaluating plot style command"); |
|
191
|
673 return -1; |
|
|
674 } |
|
1
|
675 } |
|
|
676 |
|
524
|
677 if (pointtype) |
|
1
|
678 { |
|
|
679 tree_constant tmp = pointtype->eval (0); |
|
191
|
680 if (! error_state && tmp.is_defined ()) |
|
1
|
681 { |
|
629
|
682 double val = tmp.double_value (); |
|
1
|
683 plot_buf << " " << NINT (val); |
|
|
684 } |
|
|
685 else |
|
191
|
686 { |
|
240
|
687 ::error ("evaluating plot style command"); |
|
191
|
688 return -1; |
|
|
689 } |
|
1
|
690 } |
|
|
691 } |
|
|
692 else |
|
|
693 return -1; |
|
|
694 |
|
|
695 return 0; |
|
|
696 } |
|
|
697 |
|
872
|
698 int |
|
|
699 subplot_style::errorbars (void) |
|
|
700 { |
|
|
701 return (style |
|
|
702 && (almost_match ("errorbars", style, 1, 0) |
|
|
703 || almost_match ("boxerrorbars", style, 5, 0))); |
|
|
704 } |
|
|
705 |
|
591
|
706 void |
|
|
707 subplot_style::print_code (ostream& os) |
|
|
708 { |
|
|
709 os << " with " << style; |
|
|
710 |
|
|
711 if (linetype) |
|
|
712 { |
|
|
713 os << " "; |
|
|
714 linetype->print_code (os); |
|
|
715 } |
|
|
716 |
|
|
717 if (pointtype) |
|
|
718 { |
|
|
719 os << " "; |
|
|
720 pointtype->print_code (os); |
|
|
721 } |
|
|
722 } |
|
|
723 |
|
878
|
724 subplot::subplot (void) |
|
|
725 { |
|
|
726 plot_data = 0; |
|
|
727 using = 0; |
|
|
728 title = 0; |
|
|
729 style = 0; |
|
|
730 } |
|
|
731 |
|
|
732 subplot::subplot (tree_expression *data) |
|
|
733 { |
|
|
734 plot_data = data; |
|
|
735 using = 0; |
|
|
736 title = 0; |
|
|
737 style = 0; |
|
|
738 } |
|
|
739 |
|
|
740 subplot::subplot (subplot_using *u, tree_expression *t, subplot_style *s) |
|
|
741 { |
|
|
742 plot_data = 0; |
|
|
743 using = u; |
|
|
744 title = t; |
|
|
745 style = s; |
|
|
746 } |
|
|
747 |
|
|
748 subplot::~subplot (void) |
|
|
749 { |
|
|
750 delete plot_data; |
|
|
751 delete using; |
|
|
752 delete title; |
|
|
753 delete style; |
|
|
754 } |
|
|
755 |
|
|
756 void |
|
|
757 subplot::set_data (tree_expression *data) |
|
|
758 { |
|
|
759 plot_data = data; |
|
|
760 } |
|
|
761 |
|
872
|
762 tree_constant |
|
|
763 subplot::extract_plot_data (int ndim, tree_constant& data) |
|
|
764 { |
|
|
765 tree_constant retval; |
|
|
766 |
|
|
767 if (using) |
|
|
768 { |
|
|
769 ColumnVector val = using->values (ndim); |
|
|
770 |
|
|
771 Octave_object args; |
|
|
772 args(1) = val; |
|
|
773 args(0) = tree_constant::magic_colon_t; |
|
|
774 |
|
|
775 Octave_object tmp = data.eval (0, 1, args); |
|
|
776 retval = tmp(0); |
|
|
777 |
|
|
778 if (error_state) |
|
|
779 return tree_constant (); |
|
|
780 } |
|
|
781 else |
|
|
782 { |
|
|
783 retval = data; |
|
|
784 } |
|
|
785 |
|
|
786 if (ndim == 2 && style && style->errorbars ()) |
|
|
787 { |
|
|
788 int nc = retval.columns (); |
|
|
789 |
|
|
790 if (nc < 3 || nc > 4) |
|
|
791 { |
|
|
792 error ("plots with errorbars require 3 or 4 columns of data"); |
|
|
793 error ("but %d were provided", nc); |
|
|
794 return tree_constant (); |
|
|
795 } |
|
|
796 } |
|
|
797 |
|
|
798 return retval; |
|
|
799 } |
|
|
800 |
|
591
|
801 int |
|
872
|
802 subplot::handle_plot_data (int ndim, ostrstream& plot_buf) |
|
591
|
803 { |
|
|
804 if (plot_data) |
|
|
805 { |
|
|
806 tree_constant data = plot_data->eval (0); |
|
872
|
807 |
|
591
|
808 if (! error_state && data.is_defined ()) |
|
|
809 { |
|
|
810 char *file = 0; |
|
610
|
811 if (data.is_string ()) |
|
591
|
812 { |
|
872
|
813 // Should really try to look at data file to determine n_max. Can't |
|
|
814 // do much about other arbitrary gnuplot commands though... |
|
|
815 |
|
|
816 int n_max = 0; |
|
|
817 |
|
591
|
818 file = tilde_expand (data.string_value ()); |
|
|
819 ifstream ftmp (file); |
|
|
820 if (ftmp) |
|
|
821 { |
|
|
822 plot_buf << " \"" << file << '"'; |
|
|
823 free (file); |
|
|
824 } |
|
|
825 else |
|
|
826 { |
|
|
827 free (file); |
|
|
828 file = 0; |
|
|
829 |
|
|
830 // Opening as a file failed. Let's try passing it along as a plot |
|
|
831 // command. |
|
|
832 plot_buf << " " << data.string_value (); |
|
872
|
833 } |
|
|
834 |
|
|
835 if (using) |
|
|
836 { |
|
|
837 int status = using->print (ndim, n_max, plot_buf); |
|
|
838 if (status < 0) |
|
|
839 return -1; |
|
591
|
840 } |
|
|
841 } |
|
872
|
842 else |
|
591
|
843 { |
|
872
|
844 // Eliminate the need for printing a using clause to plot_buf. |
|
|
845 |
|
|
846 tree_constant tmp_data = extract_plot_data (ndim, data); |
|
|
847 |
|
|
848 if (tmp_data.is_defined ()) |
|
|
849 { |
|
|
850 switch (ndim) |
|
|
851 { |
|
|
852 case 2: |
|
|
853 file = save_in_tmp_file (tmp_data, ndim); |
|
|
854 break; |
|
777
|
855 |
|
872
|
856 case 3: |
|
|
857 file = save_in_tmp_file (tmp_data, ndim, |
|
|
858 parametric_plot); |
|
|
859 break; |
|
777
|
860 |
|
872
|
861 default: |
|
|
862 gripe_2_or_3_dim_plot (); |
|
|
863 break; |
|
|
864 } |
|
591
|
865 |
|
872
|
866 if (file) |
|
|
867 { |
|
|
868 mark_for_deletion (file); |
|
|
869 plot_buf << " \"" << file << '"'; |
|
|
870 } |
|
|
871 } |
|
591
|
872 } |
|
|
873 } |
|
|
874 else |
|
|
875 return -1; |
|
|
876 } |
|
|
877 else |
|
|
878 return -1; |
|
|
879 |
|
872
|
880 return 0; |
|
|
881 } |
|
591
|
882 |
|
872
|
883 int |
|
|
884 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
885 { |
|
|
886 int status = handle_plot_data (ndim, plot_buf); |
|
|
887 |
|
|
888 if (status < 0) |
|
|
889 return -1; |
|
591
|
890 |
|
|
891 if (title) |
|
|
892 { |
|
|
893 tree_constant tmp = title->eval (0); |
|
610
|
894 if (! error_state && tmp.is_string ()) |
|
866
|
895 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
896 << '"' << tmp.string_value () << '"'; |
|
591
|
897 else |
|
|
898 { |
|
|
899 warning ("line title must be a string"); |
|
866
|
900 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
901 << '"' << "line " << plot_line_count << '"'; |
|
591
|
902 } |
|
|
903 } |
|
|
904 else |
|
866
|
905 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
906 << '"' << "line " << plot_line_count << '"'; |
|
591
|
907 |
|
|
908 if (style) |
|
|
909 { |
|
|
910 int status = style->print (plot_buf); |
|
|
911 if (status < 0) |
|
|
912 return -1; |
|
|
913 } |
|
|
914 |
|
|
915 return 0; |
|
|
916 } |
|
|
917 |
|
|
918 void |
|
|
919 subplot::print_code (ostream& os) |
|
|
920 { |
|
|
921 if (plot_data) |
|
592
|
922 { |
|
|
923 os << " "; |
|
|
924 plot_data->print_code (os); |
|
|
925 } |
|
591
|
926 |
|
|
927 if (using) |
|
|
928 using->print_code (os); |
|
|
929 |
|
|
930 if (title) |
|
|
931 title->print_code (os); |
|
|
932 |
|
|
933 if (style) |
|
|
934 style->print_code (os); |
|
|
935 } |
|
|
936 |
|
|
937 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
938 { |
|
|
939 int status = 0; |
|
|
940 |
|
|
941 for (Pix p = first (); p != 0; next (p)) |
|
|
942 { |
|
|
943 subplot *elt = this->operator () (p); |
|
|
944 |
|
|
945 plot_line_count++; |
|
|
946 |
|
|
947 if (p != first ()) |
|
|
948 plot_buf << ",\\\n "; |
|
|
949 |
|
|
950 status = elt->print (ndim, plot_buf); |
|
|
951 |
|
|
952 if (status < 0) |
|
|
953 break; |
|
|
954 } |
|
|
955 |
|
|
956 return status; |
|
|
957 } |
|
|
958 |
|
|
959 void |
|
|
960 subplot_list::print_code (ostream& os) |
|
|
961 { |
|
|
962 Pix p = first (); |
|
|
963 |
|
|
964 while (p) |
|
|
965 { |
|
|
966 subplot *elt = this->operator () (p); |
|
|
967 |
|
|
968 next (p); |
|
|
969 |
|
|
970 if (elt) |
|
|
971 { |
|
|
972 elt->print_code (os); |
|
|
973 |
|
|
974 if (p) |
|
592
|
975 os << ","; |
|
591
|
976 } |
|
|
977 } |
|
|
978 } |
|
|
979 |
|
524
|
980 char * |
|
|
981 save_in_tmp_file (tree_constant& t, int ndim, int parametric) |
|
|
982 { |
|
662
|
983 char *name = octave_tmp_file_name (); |
|
524
|
984 if (name) |
|
|
985 { |
|
|
986 ofstream file (name); |
|
|
987 if (file) |
|
|
988 { |
|
|
989 switch (ndim) |
|
|
990 { |
|
|
991 case 2: |
|
871
|
992 save_ascii_data (file, t, 0, 1); |
|
524
|
993 break; |
|
777
|
994 |
|
524
|
995 case 3: |
|
607
|
996 save_three_d (file, t, parametric); |
|
524
|
997 break; |
|
777
|
998 |
|
524
|
999 default: |
|
771
|
1000 gripe_2_or_3_dim_plot (); |
|
524
|
1001 break; |
|
|
1002 } |
|
|
1003 } |
|
|
1004 else |
|
|
1005 { |
|
|
1006 error ("couldn't open temporary output file `%s'", name); |
|
|
1007 name = 0; |
|
|
1008 } |
|
|
1009 } |
|
|
1010 return name; |
|
|
1011 } |
|
|
1012 |
|
|
1013 void |
|
|
1014 mark_for_deletion (const char *filename) |
|
|
1015 { |
|
|
1016 char *tmp = strsave (filename); |
|
|
1017 tmp_files.push (tmp); |
|
|
1018 } |
|
|
1019 |
|
|
1020 void |
|
|
1021 cleanup_tmp_files (void) |
|
|
1022 { |
|
|
1023 while (! tmp_files.empty ()) |
|
|
1024 { |
|
|
1025 char *filename = tmp_files.pop (); |
|
|
1026 unlink (filename); |
|
|
1027 delete [] filename; |
|
|
1028 } |
|
|
1029 } |
|
|
1030 |
|
|
1031 void |
|
|
1032 close_plot_stream (void) |
|
|
1033 { |
|
|
1034 if (plot_stream.is_open ()) |
|
|
1035 plot_stream.close (); |
|
|
1036 |
|
|
1037 plot_line_count = 0; |
|
|
1038 } |
|
|
1039 |
|
|
1040 DEFUN ("closeplot", Fcloseplot, Scloseplot, 1, 0, |
|
|
1041 "closeplot (): close the stream to plotter") |
|
|
1042 { |
|
|
1043 Octave_object retval; |
|
|
1044 close_plot_stream (); |
|
|
1045 return retval; |
|
|
1046 } |
|
|
1047 |
|
|
1048 DEFUN_TEXT ("hold", Fhold, Shold, -1, 1, |
|
|
1049 "hold [on|off]\n\ |
|
|
1050 \n\ |
|
|
1051 determine whether the plot window is cleared before the next line is\n\ |
|
|
1052 drawn. With no argument, toggle the current state.") |
|
|
1053 { |
|
|
1054 Octave_object retval; |
|
|
1055 |
|
|
1056 DEFINE_ARGV("hold"); |
|
|
1057 |
|
|
1058 switch (argc) |
|
|
1059 { |
|
|
1060 case 1: |
|
|
1061 clear_before_plotting = ! clear_before_plotting; |
|
|
1062 break; |
|
777
|
1063 |
|
524
|
1064 case 2: |
|
|
1065 if (strcasecmp (argv[1], "on") == 0) |
|
|
1066 clear_before_plotting = 0; |
|
|
1067 else if (strcasecmp (argv[1], "off") == 0) |
|
|
1068 clear_before_plotting = 1; |
|
|
1069 else |
|
|
1070 print_usage ("hold"); |
|
|
1071 break; |
|
777
|
1072 |
|
524
|
1073 default: |
|
|
1074 print_usage ("hold"); |
|
|
1075 break; |
|
|
1076 } |
|
|
1077 |
|
|
1078 DELETE_ARGV; |
|
|
1079 |
|
|
1080 return retval; |
|
|
1081 } |
|
|
1082 |
|
735
|
1083 DEFUN ("ishold", Fishold, Sishold, 0, 1, |
|
|
1084 "ishold\n\ |
|
|
1085 \n\ |
|
|
1086 Return 1 if hold is on, otherwise return 0.") |
|
|
1087 { |
|
|
1088 return (double) (! clear_before_plotting); |
|
|
1089 } |
|
|
1090 |
|
524
|
1091 DEFUN ("purge_tmp_files", Fpurge_tmp_files, Spurge_tmp_files, 5, 1, |
|
|
1092 "delete temporary data files used for plotting") |
|
|
1093 { |
|
|
1094 Octave_object retval; |
|
|
1095 cleanup_tmp_files (); |
|
|
1096 return retval; |
|
|
1097 } |
|
|
1098 |
|
|
1099 DEFUN_TEXT ("set", Fset, Sset, -1, 1, |
|
|
1100 "set [options]\n\ |
|
|
1101 \n\ |
|
|
1102 set plotting options") |
|
|
1103 { |
|
|
1104 Octave_object retval; |
|
|
1105 |
|
|
1106 DEFINE_ARGV("set"); |
|
|
1107 |
|
|
1108 ostrstream plot_buf; |
|
|
1109 |
|
|
1110 if (argc > 1) |
|
|
1111 { |
|
|
1112 if (almost_match ("parametric", argv[1], 3)) |
|
|
1113 parametric_plot = 1; |
|
|
1114 else if (almost_match ("noparametric", argv[1], 5)) |
|
|
1115 parametric_plot = 0; |
|
|
1116 } |
|
|
1117 |
|
|
1118 for (int i = 0; i < argc; i++) |
|
|
1119 plot_buf << argv[i] << " "; |
|
|
1120 |
|
|
1121 plot_buf << "\n" << ends; |
|
|
1122 |
|
|
1123 char *plot_command = plot_buf.str (); |
|
|
1124 send_to_plot_stream (plot_command); |
|
|
1125 |
|
|
1126 delete [] plot_command; |
|
|
1127 |
|
|
1128 DELETE_ARGV; |
|
|
1129 |
|
|
1130 return retval; |
|
|
1131 } |
|
|
1132 |
|
|
1133 DEFUN_TEXT ("show", Fshow, Sshow, -1, 1, |
|
|
1134 "show [options]\n\ |
|
|
1135 \n\ |
|
|
1136 show plotting options") |
|
|
1137 { |
|
|
1138 Octave_object retval; |
|
|
1139 |
|
|
1140 DEFINE_ARGV("show"); |
|
|
1141 |
|
|
1142 ostrstream plot_buf; |
|
|
1143 |
|
|
1144 for (int i = 0; i < argc; i++) |
|
|
1145 plot_buf << argv[i] << " "; |
|
|
1146 |
|
|
1147 plot_buf << "\n" << ends; |
|
|
1148 |
|
|
1149 char *plot_command = plot_buf.str (); |
|
|
1150 send_to_plot_stream (plot_command); |
|
|
1151 |
|
|
1152 delete [] plot_command; |
|
|
1153 |
|
|
1154 DELETE_ARGV; |
|
|
1155 |
|
|
1156 return retval; |
|
|
1157 } |
|
|
1158 |
|
1
|
1159 /* |
|
|
1160 ;;; Local Variables: *** |
|
|
1161 ;;; mode: C++ *** |
|
|
1162 ;;; page-delimiter: "^/\\*" *** |
|
|
1163 ;;; End: *** |
|
|
1164 */ |
