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