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