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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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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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53 #include "utils.h" |
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524
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54 #include "defun.h" |
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1
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55 |
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87
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56 extern "C" |
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57 { |
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581
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58 #include <readline/tilde.h> |
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87
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59 } |
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60 |
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1
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61 // The number of lines we\'ve plotted so far. |
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591
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62 int plot_line_count = 0; |
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1
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63 |
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64 // Is this a parametric plot? Makes a difference for 3D plotting. |
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65 int parametric_plot = 0; |
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66 |
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478
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67 // Should the graph window be cleared before plotting the next line? |
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68 int clear_before_plotting = 1; |
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69 |
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524
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70 // List of files to delete when we exit or crash. |
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71 static SLStack <char *> tmp_files; |
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72 |
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73 // Pipe to gnuplot. |
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74 static oprocstream plot_stream; |
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75 |
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597
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76 static void |
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77 open_plot_stream (void) |
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78 { |
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79 static int initialized = 0; |
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80 |
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81 if (! plot_stream.is_open ()) |
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82 { |
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83 plot_line_count = 0; |
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84 |
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85 char *plot_prog = user_pref.gnuplot_binary; |
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86 if (plot_prog) |
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87 { |
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88 plot_stream.open (plot_prog); |
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89 if (! plot_stream.is_open ()) |
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90 { |
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91 warning ("plot: unable to open pipe to `%s'", |
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92 plot_prog); |
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93 |
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94 if (strcmp (plot_prog, "gnuplot") != 0) |
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95 { |
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96 warning ("having trouble finding plotting program."); |
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97 warning ("trying again with `gnuplot'"); |
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98 goto last_chance; |
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99 } |
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100 } |
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101 } |
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102 else |
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103 { |
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104 last_chance: |
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105 |
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106 plot_stream.open ("gnuplot"); |
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107 |
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108 if (! plot_stream.is_open ()) |
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109 error ("plot: unable to open pipe to `%s'", plot_prog); |
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110 } |
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111 } |
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112 |
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113 if (! initialized) |
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114 { |
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115 initialized = 1; |
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116 plot_stream << "set data style lines\n"; |
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117 } |
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118 } |
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119 |
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120 static int |
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121 send_to_plot_stream (const char *cmd) |
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122 { |
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123 // From sighandlers.cc: |
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124 extern int pipe_handler_error_count; |
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125 |
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126 if (! plot_stream.is_open ()) |
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127 { |
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128 open_plot_stream (); |
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129 |
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130 if (error_state) |
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131 return -1; |
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132 } |
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133 |
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661
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134 int is_replot = (strncmp (cmd, "replot", 6) == 0); |
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135 int is_splot = (strncmp (cmd, "splot", 5) == 0); |
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136 int is_plot = (strncmp (cmd, "plot", 4) == 0); |
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137 |
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138 if (plot_line_count == 0 && is_replot) |
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139 error ("replot: no previous plot"); |
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140 else |
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141 { |
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142 plot_stream << cmd; |
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661
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143 if (! (is_replot || is_splot || is_plot) |
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144 && plot_line_count > 0 |
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145 && user_pref.automatic_replot) |
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146 plot_stream << "replot\n"; |
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597
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147 plot_stream.flush (); |
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148 pipe_handler_error_count = 0; |
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149 } |
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150 |
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151 return 0; |
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152 } |
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153 |
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581
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154 // Plotting, eh? |
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1
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155 |
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581
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156 tree_plot_command::tree_plot_command (void) : tree_command () |
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157 { |
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524
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158 range = 0; |
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159 plot_list = 0; |
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1
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160 ndim = 0; |
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161 } |
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162 |
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578
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163 tree_plot_command::tree_plot_command (subplot_list *plt, int nd) |
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581
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164 : tree_command () |
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1
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165 { |
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524
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166 range = 0; |
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167 plot_list = plt; |
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168 ndim = nd; |
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169 } |
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170 |
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578
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171 tree_plot_command::tree_plot_command (subplot_list *plt, |
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172 plot_limits *rng, int nd) |
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581
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173 : tree_command () |
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1
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174 { |
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175 range = rng; |
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176 plot_list = plt; |
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177 ndim = nd; |
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178 } |
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179 |
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180 tree_plot_command::~tree_plot_command (void) |
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181 { |
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182 delete range; |
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183 delete plot_list; |
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184 } |
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185 |
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578
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186 void |
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187 tree_plot_command::eval (void) |
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1
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188 { |
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143
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189 if (error_state) |
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578
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190 return; |
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143
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191 |
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597
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192 open_plot_stream (); |
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193 |
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1
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194 ostrstream plot_buf; |
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195 |
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196 switch (ndim) |
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197 { |
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476
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198 case 1: |
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478
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199 if (plot_line_count == 0) |
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200 { |
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201 if (plot_list) |
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202 plot_buf << "plot"; |
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203 else |
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204 { |
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205 ::error ("replot: must have something to plot"); |
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578
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206 return; |
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478
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207 } |
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208 } |
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209 else |
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210 plot_buf << "replot"; |
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476
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211 break; |
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1
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212 case 2: |
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478
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213 if (clear_before_plotting || plot_line_count == 0) |
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214 { |
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215 plot_line_count = 0; |
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216 plot_buf << "plot"; |
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217 } |
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218 else |
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219 plot_buf << "replot"; |
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220 break; |
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221 case 3: |
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478
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222 { |
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223 plot_line_count = 0; |
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224 plot_buf << "splot"; |
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225 } |
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1
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226 break; |
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227 default: |
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228 panic_impossible (); |
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229 break; |
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230 } |
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231 |
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524
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232 if (range) |
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478
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233 { |
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234 if (plot_line_count == 0) |
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235 range->print (ndim, plot_buf); |
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236 else |
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237 warning ("can't specify new plot ranges with `replot' or while\ |
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238 hold is on"); |
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239 } |
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1
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240 |
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191
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241 if (error_state) |
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578
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242 return; |
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191
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243 |
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591
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244 if (plot_list) |
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1
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245 { |
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591
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246 int status = plot_list->print (ndim, plot_buf); |
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578
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247 |
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1
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248 if (status < 0) |
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578
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249 return; |
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1
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250 } |
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251 |
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252 plot_buf << "\n" << ends; |
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253 |
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254 // Just testing... |
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255 // char *message = plot_buf.str (); |
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256 // cout << "[*]" << message << "[*]\n"; |
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257 |
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258 if (parametric_plot && ndim == 2) |
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259 { |
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260 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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261 send_to_plot_stream ("set noparametric\n"); |
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262 char *message = plot_buf.str (); |
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263 send_to_plot_stream (message); |
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264 delete [] message; |
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265 send_to_plot_stream ("set parametric\n"); |
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266 } |
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267 else |
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268 { |
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269 char *message = plot_buf.str (); |
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270 send_to_plot_stream (message); |
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271 delete [] message; |
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272 } |
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273 } |
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274 |
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591
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275 void |
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276 tree_plot_command::print_code (ostream& os) |
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1
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277 { |
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591
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278 print_code_indent (os); |
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86
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279 |
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591
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280 switch (ndim) |
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1
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281 { |
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591
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282 case 1: |
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283 os << "replot"; |
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284 break; |
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285 case 2: |
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286 os << "gplot"; |
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287 break; |
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288 case 3: |
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289 os << "gsplot"; |
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290 break; |
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291 default: |
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292 panic_impossible (); |
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293 break; |
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1
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294 } |
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295 |
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591
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296 if (range) |
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297 range->print_code (os); |
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1
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298 |
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591
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299 if (plot_list) |
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300 plot_list->print_code (os); |
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1
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301 } |
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302 |
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578
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303 plot_limits::plot_limits (void) |
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1
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304 { |
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524
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305 x_range = 0; |
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306 y_range = 0; |
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307 z_range = 0; |
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1
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308 } |
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309 |
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578
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310 plot_limits::plot_limits (plot_range *xlim) |
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1
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311 { |
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312 x_range = xlim; |
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524
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313 y_range = 0; |
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314 z_range = 0; |
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1
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315 } |
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316 |
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578
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317 plot_limits::plot_limits (plot_range *xlim, |
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318 plot_range *ylim) |
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1
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319 { |
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320 x_range = xlim; |
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321 y_range = ylim; |
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524
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322 z_range = 0; |
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1
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323 } |
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324 |
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578
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325 plot_limits::plot_limits (plot_range *xlim, |
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326 plot_range *ylim, |
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327 plot_range *zlim) |
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1
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328 { |
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329 x_range = xlim; |
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330 y_range = ylim; |
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331 z_range = zlim; |
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332 } |
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333 |
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578
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334 plot_limits::~plot_limits (void) |
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1
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335 { |
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336 delete x_range; |
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337 delete y_range; |
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338 delete z_range; |
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339 } |
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340 |
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341 void |
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578
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342 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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343 { |
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344 if (ndim == 2 || ndim == 3) |
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345 { |
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524
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346 if (x_range) |
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1
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347 x_range->print (plot_buf); |
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348 else |
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349 return; |
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350 |
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524
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351 if (y_range) |
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1
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352 y_range->print (plot_buf); |
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353 else |
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354 return; |
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355 } |
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356 |
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524
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357 if (ndim == 3 && z_range) |
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1
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358 z_range->print (plot_buf); |
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359 } |
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360 |
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591
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361 void |
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362 plot_limits::print_code (ostream& os) |
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363 { |
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364 if (x_range) |
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365 x_range->print_code (os); |
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366 |
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367 if (y_range) |
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368 y_range->print_code (os); |
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369 |
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370 if (z_range) |
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371 z_range->print_code (os); |
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372 } |
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373 |
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578
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374 plot_range::plot_range (void) |
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1
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375 { |
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524
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376 lower = 0; |
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377 upper = 0; |
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1
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378 } |
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379 |
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578
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380 plot_range::plot_range (tree_expression *l, tree_expression *u) |
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1
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381 { |
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382 lower = l; |
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383 upper = u; |
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384 } |
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385 |
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578
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386 plot_range::~plot_range (void) |
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1
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387 { |
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388 delete lower; |
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389 delete upper; |
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390 } |
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391 |
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392 void |
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578
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393 plot_range::print (ostrstream& plot_buf) |
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1
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394 { |
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395 plot_buf << " ["; |
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396 |
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524
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397 if (lower) |
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1
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398 { |
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399 tree_constant lower_val = lower->eval (0); |
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191
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400 if (error_state) |
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401 { |
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240
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402 ::error ("evaluating lower bound of plot range"); |
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191
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403 return; |
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404 } |
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405 else |
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406 { |
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629
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407 double lo = lower_val.double_value (); |
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191
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408 plot_buf << lo; |
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409 } |
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1
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410 } |
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411 |
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412 plot_buf << ":"; |
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413 |
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524
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414 if (upper) |
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1
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415 { |
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416 tree_constant upper_val = upper->eval (0); |
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191
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417 if (error_state) |
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418 { |
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240
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419 ::error ("evaluating upper bound of plot range"); |
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191
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420 return; |
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421 } |
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422 else |
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423 { |
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629
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424 double hi = upper_val.double_value (); |
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191
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425 plot_buf << hi; |
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426 } |
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1
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427 } |
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428 |
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429 plot_buf << "]"; |
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430 } |
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431 |
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591
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432 void |
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433 plot_range::print_code (ostream& os) |
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434 { |
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435 os << " ["; |
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436 |
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437 if (lower) |
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438 lower->print_code (os); |
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439 |
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440 os << ":"; |
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441 |
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442 if (upper) |
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443 upper->print_code (os); |
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444 |
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445 os << "]"; |
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446 } |
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447 |
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578
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448 subplot_using::subplot_using (void) |
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1
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449 { |
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450 qualifier_count = 0; |
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524
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451 x[0] = 0; |
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452 x[1] = 0; |
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453 x[2] = 0; |
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454 x[3] = 0; |
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455 scanf_fmt = 0; |
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1
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456 } |
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457 |
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578
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458 subplot_using::subplot_using (tree_expression *fmt) |
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1
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459 { |
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460 qualifier_count = 0; |
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524
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461 x[0] = 0; |
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462 x[1] = 0; |
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463 x[2] = 0; |
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464 x[3] = 0; |
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1
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465 scanf_fmt = fmt; |
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466 } |
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467 |
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578
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468 subplot_using::~subplot_using (void) |
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1
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469 { |
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470 delete scanf_fmt; |
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471 } |
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472 |
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578
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473 subplot_using * |
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474 subplot_using::set_format (tree_expression *fmt) |
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1
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475 { |
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476 scanf_fmt = fmt; |
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477 return this; |
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478 } |
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479 |
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578
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480 subplot_using * |
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481 subplot_using::add_qualifier (tree_expression *t) |
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1
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482 { |
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483 if (qualifier_count < 4) |
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484 x[qualifier_count] = t; |
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485 |
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486 qualifier_count++; |
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487 |
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488 return this; |
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489 } |
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490 |
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491 int |
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578
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492 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
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1
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493 { |
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494 if ((ndim == 2 && qualifier_count > 4) |
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495 || (ndim == 3 && qualifier_count > 3)) |
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496 return -1; |
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497 |
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498 for (int i = 0; i < qualifier_count; i++) |
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499 { |
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524
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500 if (x[i]) |
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1
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501 { |
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502 tree_constant tmp = x[i]->eval (0); |
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191
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503 if (error_state) |
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504 { |
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240
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505 ::error ("evaluating plot using command"); |
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191
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506 return -1; |
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507 } |
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508 |
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1
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509 double val; |
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510 if (tmp.is_defined ()) |
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511 { |
|
629
|
512 val = tmp.double_value (); |
|
1
|
513 if (i == 0) |
|
|
514 plot_buf << " using "; |
|
|
515 else |
|
|
516 plot_buf << ":"; |
|
|
517 |
|
|
518 int n = NINT (val); |
|
|
519 |
|
322
|
520 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
521 { |
|
240
|
522 ::error ("using: column %d out of range", n); |
|
1
|
523 return -1; |
|
|
524 } |
|
|
525 else |
|
|
526 plot_buf << n; |
|
|
527 } |
|
|
528 else |
|
|
529 return -1; |
|
|
530 } |
|
|
531 else |
|
|
532 return -1; |
|
|
533 } |
|
|
534 |
|
524
|
535 if (scanf_fmt) |
|
1
|
536 warning ("ignoring scanf format in plot command"); |
|
|
537 |
|
|
538 return 0; |
|
|
539 } |
|
|
540 |
|
591
|
541 void |
|
|
542 subplot_using::print_code (ostream& os) |
|
|
543 { |
|
|
544 os << " using "; |
|
|
545 for (int i = 0; i < qualifier_count; i++) |
|
|
546 { |
|
|
547 if (i > 0) |
|
|
548 os << ":"; |
|
|
549 |
|
|
550 if (x[i]) |
|
|
551 x[i]->print_code (os); |
|
|
552 } |
|
|
553 } |
|
|
554 |
|
578
|
555 subplot_style::subplot_style (void) |
|
1
|
556 { |
|
524
|
557 style = 0; |
|
|
558 linetype = 0; |
|
|
559 pointtype = 0; |
|
1
|
560 } |
|
|
561 |
|
578
|
562 subplot_style::subplot_style (char *s) |
|
1
|
563 { |
|
|
564 style = strsave (s); |
|
524
|
565 linetype = 0; |
|
|
566 pointtype = 0; |
|
1
|
567 } |
|
|
568 |
|
578
|
569 subplot_style::subplot_style (char *s, tree_expression *lt) |
|
1
|
570 { |
|
|
571 style = strsave (s); |
|
|
572 linetype = lt; |
|
524
|
573 pointtype = 0; |
|
1
|
574 } |
|
|
575 |
|
578
|
576 subplot_style::subplot_style (char *s, tree_expression *lt, |
|
491
|
577 tree_expression *pt) |
|
1
|
578 { |
|
|
579 style = strsave (s); |
|
|
580 linetype = lt; |
|
|
581 pointtype = pt; |
|
|
582 } |
|
|
583 |
|
578
|
584 subplot_style::~subplot_style (void) |
|
1
|
585 { |
|
|
586 delete [] style; |
|
|
587 delete linetype; |
|
|
588 delete pointtype; |
|
|
589 } |
|
|
590 |
|
|
591 int |
|
578
|
592 subplot_style::print (ostrstream& plot_buf) |
|
1
|
593 { |
|
524
|
594 if (style) |
|
1
|
595 { |
|
|
596 plot_buf << " with " << style; |
|
|
597 |
|
524
|
598 if (linetype) |
|
1
|
599 { |
|
|
600 tree_constant tmp = linetype->eval (0); |
|
191
|
601 if (! error_state && tmp.is_defined ()) |
|
1
|
602 { |
|
629
|
603 double val = tmp.double_value (); |
|
1
|
604 plot_buf << " " << NINT (val); |
|
|
605 } |
|
|
606 else |
|
191
|
607 { |
|
240
|
608 ::error ("evaluating plot style command"); |
|
191
|
609 return -1; |
|
|
610 } |
|
1
|
611 } |
|
|
612 |
|
524
|
613 if (pointtype) |
|
1
|
614 { |
|
|
615 tree_constant tmp = pointtype->eval (0); |
|
191
|
616 if (! error_state && tmp.is_defined ()) |
|
1
|
617 { |
|
629
|
618 double val = tmp.double_value (); |
|
1
|
619 plot_buf << " " << NINT (val); |
|
|
620 } |
|
|
621 else |
|
191
|
622 { |
|
240
|
623 ::error ("evaluating plot style command"); |
|
191
|
624 return -1; |
|
|
625 } |
|
1
|
626 } |
|
|
627 } |
|
|
628 else |
|
|
629 return -1; |
|
|
630 |
|
|
631 return 0; |
|
|
632 } |
|
|
633 |
|
591
|
634 void |
|
|
635 subplot_style::print_code (ostream& os) |
|
|
636 { |
|
|
637 os << " with " << style; |
|
|
638 |
|
|
639 if (linetype) |
|
|
640 { |
|
|
641 os << " "; |
|
|
642 linetype->print_code (os); |
|
|
643 } |
|
|
644 |
|
|
645 if (pointtype) |
|
|
646 { |
|
|
647 os << " "; |
|
|
648 pointtype->print_code (os); |
|
|
649 } |
|
|
650 } |
|
|
651 |
|
|
652 int |
|
|
653 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
654 { |
|
|
655 int nc = 0; |
|
|
656 if (plot_data) |
|
|
657 { |
|
|
658 tree_constant data = plot_data->eval (0); |
|
|
659 if (! error_state && data.is_defined ()) |
|
|
660 { |
|
|
661 char *file = 0; |
|
610
|
662 if (data.is_string ()) |
|
591
|
663 { |
|
|
664 file = tilde_expand (data.string_value ()); |
|
|
665 ifstream ftmp (file); |
|
|
666 if (ftmp) |
|
|
667 { |
|
|
668 plot_buf << " \"" << file << '"'; |
|
|
669 free (file); |
|
|
670 goto have_existing_file_or_command; |
|
|
671 } |
|
|
672 else |
|
|
673 { |
|
|
674 free (file); |
|
|
675 file = 0; |
|
|
676 |
|
|
677 // Opening as a file failed. Let's try passing it along as a plot |
|
|
678 // command. |
|
|
679 plot_buf << " " << data.string_value (); |
|
|
680 goto have_existing_file_or_command; |
|
|
681 } |
|
|
682 } |
|
|
683 |
|
|
684 nc = data.columns (); |
|
|
685 switch (ndim) |
|
|
686 { |
|
|
687 case 2: |
|
|
688 file = save_in_tmp_file (data, ndim); |
|
|
689 break; |
|
|
690 case 3: |
|
|
691 file = save_in_tmp_file (data, ndim, parametric_plot); |
|
|
692 break; |
|
|
693 default: |
|
|
694 panic_impossible (); |
|
|
695 break; |
|
|
696 } |
|
|
697 |
|
|
698 if (file) |
|
|
699 { |
|
|
700 mark_for_deletion (file); |
|
|
701 plot_buf << " \"" << file << '"'; |
|
|
702 } |
|
|
703 } |
|
|
704 else |
|
|
705 return -1; |
|
|
706 } |
|
|
707 else |
|
|
708 return -1; |
|
|
709 |
|
|
710 have_existing_file_or_command: |
|
|
711 |
|
|
712 if (using) |
|
|
713 { |
|
|
714 int status = using->print (ndim, nc, plot_buf); |
|
|
715 if (status < 0) |
|
|
716 return -1; |
|
|
717 } |
|
|
718 |
|
|
719 if (title) |
|
|
720 { |
|
|
721 tree_constant tmp = title->eval (0); |
|
610
|
722 if (! error_state && tmp.is_string ()) |
|
591
|
723 plot_buf << " title " << '"' << tmp.string_value () << '"'; |
|
|
724 else |
|
|
725 { |
|
|
726 warning ("line title must be a string"); |
|
|
727 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
|
|
728 } |
|
|
729 } |
|
|
730 else |
|
|
731 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
|
|
732 |
|
|
733 if (style) |
|
|
734 { |
|
|
735 int status = style->print (plot_buf); |
|
|
736 if (status < 0) |
|
|
737 return -1; |
|
|
738 } |
|
|
739 |
|
|
740 return 0; |
|
|
741 } |
|
|
742 |
|
|
743 void |
|
|
744 subplot::print_code (ostream& os) |
|
|
745 { |
|
|
746 if (plot_data) |
|
592
|
747 { |
|
|
748 os << " "; |
|
|
749 plot_data->print_code (os); |
|
|
750 } |
|
591
|
751 |
|
|
752 if (using) |
|
|
753 using->print_code (os); |
|
|
754 |
|
|
755 if (title) |
|
|
756 title->print_code (os); |
|
|
757 |
|
|
758 if (style) |
|
|
759 style->print_code (os); |
|
|
760 } |
|
|
761 |
|
|
762 int |
|
|
763 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
764 { |
|
|
765 int status = 0; |
|
|
766 |
|
|
767 for (Pix p = first (); p != 0; next (p)) |
|
|
768 { |
|
|
769 subplot *elt = this->operator () (p); |
|
|
770 |
|
|
771 plot_line_count++; |
|
|
772 |
|
|
773 if (p != first ()) |
|
|
774 plot_buf << ",\\\n "; |
|
|
775 |
|
|
776 status = elt->print (ndim, plot_buf); |
|
|
777 |
|
|
778 if (status < 0) |
|
|
779 break; |
|
|
780 } |
|
|
781 |
|
|
782 return status; |
|
|
783 } |
|
|
784 |
|
|
785 void |
|
|
786 subplot_list::print_code (ostream& os) |
|
|
787 { |
|
|
788 Pix p = first (); |
|
|
789 |
|
|
790 while (p) |
|
|
791 { |
|
|
792 subplot *elt = this->operator () (p); |
|
|
793 |
|
|
794 next (p); |
|
|
795 |
|
|
796 if (elt) |
|
|
797 { |
|
|
798 elt->print_code (os); |
|
|
799 |
|
|
800 if (p) |
|
592
|
801 os << ","; |
|
591
|
802 } |
|
|
803 } |
|
|
804 } |
|
|
805 |
|
524
|
806 char * |
|
|
807 save_in_tmp_file (tree_constant& t, int ndim, int parametric) |
|
|
808 { |
|
662
|
809 char *name = octave_tmp_file_name (); |
|
524
|
810 if (name) |
|
|
811 { |
|
|
812 ofstream file (name); |
|
|
813 if (file) |
|
|
814 { |
|
|
815 switch (ndim) |
|
|
816 { |
|
|
817 case 2: |
|
607
|
818 save_ascii_data (file, t); |
|
524
|
819 break; |
|
|
820 case 3: |
|
607
|
821 save_three_d (file, t, parametric); |
|
524
|
822 break; |
|
|
823 default: |
|
|
824 panic_impossible (); |
|
|
825 break; |
|
|
826 } |
|
|
827 } |
|
|
828 else |
|
|
829 { |
|
|
830 error ("couldn't open temporary output file `%s'", name); |
|
|
831 name = 0; |
|
|
832 } |
|
|
833 } |
|
|
834 return name; |
|
|
835 } |
|
|
836 |
|
|
837 void |
|
|
838 mark_for_deletion (const char *filename) |
|
|
839 { |
|
|
840 char *tmp = strsave (filename); |
|
|
841 tmp_files.push (tmp); |
|
|
842 } |
|
|
843 |
|
|
844 void |
|
|
845 cleanup_tmp_files (void) |
|
|
846 { |
|
|
847 while (! tmp_files.empty ()) |
|
|
848 { |
|
|
849 char *filename = tmp_files.pop (); |
|
|
850 unlink (filename); |
|
|
851 delete [] filename; |
|
|
852 } |
|
|
853 } |
|
|
854 |
|
|
855 void |
|
|
856 close_plot_stream (void) |
|
|
857 { |
|
|
858 if (plot_stream.is_open ()) |
|
|
859 plot_stream.close (); |
|
|
860 |
|
|
861 plot_line_count = 0; |
|
|
862 } |
|
|
863 |
|
|
864 DEFUN ("closeplot", Fcloseplot, Scloseplot, 1, 0, |
|
|
865 "closeplot (): close the stream to plotter") |
|
|
866 { |
|
|
867 Octave_object retval; |
|
|
868 close_plot_stream (); |
|
|
869 return retval; |
|
|
870 } |
|
|
871 |
|
|
872 DEFUN_TEXT ("hold", Fhold, Shold, -1, 1, |
|
|
873 "hold [on|off]\n\ |
|
|
874 \n\ |
|
|
875 determine whether the plot window is cleared before the next line is\n\ |
|
|
876 drawn. With no argument, toggle the current state.") |
|
|
877 { |
|
|
878 Octave_object retval; |
|
|
879 |
|
|
880 DEFINE_ARGV("hold"); |
|
|
881 |
|
|
882 switch (argc) |
|
|
883 { |
|
|
884 case 1: |
|
|
885 clear_before_plotting = ! clear_before_plotting; |
|
|
886 break; |
|
|
887 case 2: |
|
|
888 if (strcasecmp (argv[1], "on") == 0) |
|
|
889 clear_before_plotting = 0; |
|
|
890 else if (strcasecmp (argv[1], "off") == 0) |
|
|
891 clear_before_plotting = 1; |
|
|
892 else |
|
|
893 print_usage ("hold"); |
|
|
894 break; |
|
|
895 default: |
|
|
896 print_usage ("hold"); |
|
|
897 break; |
|
|
898 } |
|
|
899 |
|
|
900 DELETE_ARGV; |
|
|
901 |
|
|
902 return retval; |
|
|
903 } |
|
|
904 |
|
|
905 DEFUN ("purge_tmp_files", Fpurge_tmp_files, Spurge_tmp_files, 5, 1, |
|
|
906 "delete temporary data files used for plotting") |
|
|
907 { |
|
|
908 Octave_object retval; |
|
|
909 cleanup_tmp_files (); |
|
|
910 return retval; |
|
|
911 } |
|
|
912 |
|
|
913 DEFUN_TEXT ("set", Fset, Sset, -1, 1, |
|
|
914 "set [options]\n\ |
|
|
915 \n\ |
|
|
916 set plotting options") |
|
|
917 { |
|
|
918 Octave_object retval; |
|
|
919 |
|
|
920 DEFINE_ARGV("set"); |
|
|
921 |
|
|
922 ostrstream plot_buf; |
|
|
923 |
|
|
924 if (argc > 1) |
|
|
925 { |
|
|
926 if (almost_match ("parametric", argv[1], 3)) |
|
|
927 parametric_plot = 1; |
|
|
928 else if (almost_match ("noparametric", argv[1], 5)) |
|
|
929 parametric_plot = 0; |
|
|
930 } |
|
|
931 |
|
|
932 for (int i = 0; i < argc; i++) |
|
|
933 plot_buf << argv[i] << " "; |
|
|
934 |
|
|
935 plot_buf << "\n" << ends; |
|
|
936 |
|
|
937 char *plot_command = plot_buf.str (); |
|
|
938 send_to_plot_stream (plot_command); |
|
|
939 |
|
|
940 delete [] plot_command; |
|
|
941 |
|
|
942 DELETE_ARGV; |
|
|
943 |
|
|
944 return retval; |
|
|
945 } |
|
|
946 |
|
|
947 DEFUN_TEXT ("show", Fshow, Sshow, -1, 1, |
|
|
948 "show [options]\n\ |
|
|
949 \n\ |
|
|
950 show plotting options") |
|
|
951 { |
|
|
952 Octave_object retval; |
|
|
953 |
|
|
954 DEFINE_ARGV("show"); |
|
|
955 |
|
|
956 ostrstream plot_buf; |
|
|
957 |
|
|
958 for (int i = 0; i < argc; i++) |
|
|
959 plot_buf << argv[i] << " "; |
|
|
960 |
|
|
961 plot_buf << "\n" << ends; |
|
|
962 |
|
|
963 char *plot_command = plot_buf.str (); |
|
|
964 send_to_plot_stream (plot_command); |
|
|
965 |
|
|
966 delete [] plot_command; |
|
|
967 |
|
|
968 DELETE_ARGV; |
|
|
969 |
|
|
970 return retval; |
|
|
971 } |
|
|
972 |
|
1
|
973 /* |
|
|
974 ;;; Local Variables: *** |
|
|
975 ;;; mode: C++ *** |
|
|
976 ;;; page-delimiter: "^/\\*" *** |
|
|
977 ;;; End: *** |
|
|
978 */ |
