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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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1009
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4 Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton |
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1
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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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1192
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25 #include <config.h> |
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1
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26 #endif |
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27 |
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524
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28 #include <sys/types.h> |
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29 #ifdef HAVE_UNISTD_H |
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30 #include <unistd.h> |
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31 #endif |
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597
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32 #include <string.h> |
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1
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33 #include <iostream.h> |
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597
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34 #include <strstream.h> |
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86
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35 #include <fstream.h> |
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36 |
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524
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37 #include "SLStack.h" |
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38 #include "procstream.h" |
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39 |
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40 #include "user-prefs.h" |
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584
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41 #include "tree-base.h" |
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42 #include "tree-expr.h" |
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43 #include "tree-cmd.h" |
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524
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44 #include "tree-const.h" |
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45 #include "tree-plot.h" |
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607
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46 #include "load-save.h" |
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543
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47 #include "help.h" |
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1
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48 #include "error.h" |
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777
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49 #include "gripes.h" |
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1
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50 #include "utils.h" |
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524
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51 #include "defun.h" |
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1
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52 |
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87
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53 extern "C" |
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54 { |
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581
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55 #include <readline/tilde.h> |
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87
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56 } |
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57 |
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1
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58 // The number of lines we\'ve plotted so far. |
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735
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59 static int plot_line_count = 0; |
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1
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60 |
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61 // Is this a parametric plot? Makes a difference for 3D plotting. |
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735
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62 static int parametric_plot = 0; |
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1
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63 |
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943
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64 // The gnuplot terminal type. |
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65 static char *gnuplot_terminal_type = 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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735
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68 static int clear_before_plotting = 1; |
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478
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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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866
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76 // Use shortest possible abbreviations to minimize trouble caused by |
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77 // gnuplot's fixed-length command line buffer. |
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78 |
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79 #ifndef GNUPLOT_COMMAND_PLOT |
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80 #define GNUPLOT_COMMAND_PLOT "pl" |
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81 #endif |
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82 |
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83 #ifndef GNUPLOT_COMMAND_REPLOT |
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84 #define GNUPLOT_COMMAND_REPLOT "rep" |
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85 #endif |
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86 |
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87 #ifndef GNUPLOT_COMMAND_SPLOT |
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88 #define GNUPLOT_COMMAND_SPLOT "sp" |
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89 #endif |
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90 |
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91 #ifndef GNUPLOT_COMMAND_USING |
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92 #define GNUPLOT_COMMAND_USING "u" |
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93 #endif |
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94 |
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95 #ifndef GNUPLOT_COMMAND_WITH |
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96 #define GNUPLOT_COMMAND_WITH "w" |
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97 #endif |
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98 |
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99 #ifndef GNUPLOT_COMMAND_TITLE |
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100 #define GNUPLOT_COMMAND_TITLE "t" |
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101 #endif |
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102 |
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597
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103 static void |
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104 open_plot_stream (void) |
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105 { |
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106 static int initialized = 0; |
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107 |
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108 if (! plot_stream.is_open ()) |
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109 { |
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943
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110 initialized = 0; |
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111 |
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597
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112 plot_line_count = 0; |
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113 |
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114 char *plot_prog = user_pref.gnuplot_binary; |
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115 if (plot_prog) |
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116 { |
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117 plot_stream.open (plot_prog); |
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118 if (! plot_stream.is_open ()) |
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119 { |
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120 warning ("plot: unable to open pipe to `%s'", |
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121 plot_prog); |
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122 |
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123 if (strcmp (plot_prog, "gnuplot") != 0) |
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124 { |
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125 warning ("having trouble finding plotting program."); |
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126 warning ("trying again with `gnuplot'"); |
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127 goto last_chance; |
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128 } |
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129 } |
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130 } |
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131 else |
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132 { |
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133 last_chance: |
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134 |
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135 plot_stream.open ("gnuplot"); |
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136 |
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137 if (! plot_stream.is_open ()) |
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138 error ("plot: unable to open pipe to `%s'", plot_prog); |
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139 } |
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140 } |
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141 |
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142 if (! initialized) |
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143 { |
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144 initialized = 1; |
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145 plot_stream << "set data style lines\n"; |
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943
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146 |
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147 if (gnuplot_terminal_type) |
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148 plot_stream << "set term " << gnuplot_terminal_type << "\n"; |
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597
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149 } |
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150 } |
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151 |
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152 static int |
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153 send_to_plot_stream (const char *cmd) |
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154 { |
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155 // From sighandlers.cc: |
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156 extern int pipe_handler_error_count; |
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157 |
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158 if (! plot_stream.is_open ()) |
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159 { |
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160 open_plot_stream (); |
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161 |
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162 if (error_state) |
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163 return -1; |
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164 } |
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165 |
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930
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166 int replot_len = strlen (GNUPLOT_COMMAND_REPLOT); |
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167 int splot_len = strlen (GNUPLOT_COMMAND_SPLOT); |
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168 int plot_len = strlen (GNUPLOT_COMMAND_PLOT); |
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169 |
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170 int is_replot = (strncmp (cmd, GNUPLOT_COMMAND_REPLOT, replot_len) == 0); |
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171 int is_splot = (strncmp (cmd, GNUPLOT_COMMAND_SPLOT, splot_len) == 0); |
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172 int is_plot = (strncmp (cmd, GNUPLOT_COMMAND_PLOT, plot_len) == 0); |
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661
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173 |
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174 if (plot_line_count == 0 && is_replot) |
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597
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175 error ("replot: no previous plot"); |
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176 else |
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177 { |
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178 plot_stream << cmd; |
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930
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179 |
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661
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180 if (! (is_replot || is_splot || is_plot) |
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181 && plot_line_count > 0 |
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182 && user_pref.automatic_replot) |
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866
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183 plot_stream << GNUPLOT_COMMAND_REPLOT << "\n"; |
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930
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184 |
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597
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185 plot_stream.flush (); |
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186 pipe_handler_error_count = 0; |
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187 } |
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188 |
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189 return 0; |
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190 } |
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191 |
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581
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192 // Plotting, eh? |
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1
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193 |
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581
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194 tree_plot_command::tree_plot_command (void) : tree_command () |
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1
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195 { |
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524
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196 range = 0; |
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197 plot_list = 0; |
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1
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198 ndim = 0; |
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199 } |
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200 |
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578
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201 tree_plot_command::tree_plot_command (subplot_list *plt, int nd) |
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581
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202 : tree_command () |
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1
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203 { |
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524
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204 range = 0; |
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1
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205 plot_list = plt; |
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206 ndim = nd; |
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207 } |
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208 |
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578
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209 tree_plot_command::tree_plot_command (subplot_list *plt, |
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210 plot_limits *rng, int nd) |
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581
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211 : tree_command () |
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1
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212 { |
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213 range = rng; |
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214 plot_list = plt; |
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215 ndim = nd; |
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216 } |
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217 |
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218 tree_plot_command::~tree_plot_command (void) |
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219 { |
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220 delete range; |
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221 delete plot_list; |
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222 } |
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223 |
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578
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224 void |
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225 tree_plot_command::eval (void) |
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1
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226 { |
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143
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227 if (error_state) |
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578
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228 return; |
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143
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229 |
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597
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230 open_plot_stream (); |
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231 |
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1
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232 ostrstream plot_buf; |
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233 |
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234 switch (ndim) |
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235 { |
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476
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236 case 1: |
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478
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237 if (plot_line_count == 0) |
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238 { |
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239 if (plot_list) |
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866
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240 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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241 else |
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242 { |
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243 ::error ("replot: must have something to plot"); |
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578
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244 return; |
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478
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245 } |
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246 } |
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247 else |
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866
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248 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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476
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249 break; |
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777
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250 |
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1
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251 case 2: |
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478
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252 if (clear_before_plotting || plot_line_count == 0) |
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253 { |
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254 plot_line_count = 0; |
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866
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255 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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256 } |
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257 else |
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930
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258 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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259 break; |
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777
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260 |
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1
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261 case 3: |
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930
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262 if (clear_before_plotting || plot_line_count == 0) |
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263 { |
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264 plot_line_count = 0; |
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265 plot_buf << GNUPLOT_COMMAND_SPLOT; |
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266 } |
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267 else |
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268 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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269 break; |
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777
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270 |
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1
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271 default: |
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771
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272 gripe_2_or_3_dim_plot (); |
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273 return; |
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1
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274 } |
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275 |
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524
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276 if (range) |
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478
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277 { |
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278 if (plot_line_count == 0) |
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279 range->print (ndim, plot_buf); |
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280 else |
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281 warning ("can't specify new plot ranges with `replot' or while\ |
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282 hold is on"); |
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283 } |
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1
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284 |
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191
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285 if (error_state) |
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578
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286 return; |
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191
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287 |
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591
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288 if (plot_list) |
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1
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289 { |
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591
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290 int status = plot_list->print (ndim, plot_buf); |
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578
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291 |
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771
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292 if (error_state || status < 0) |
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578
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293 return; |
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1
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294 } |
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295 |
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296 plot_buf << "\n" << ends; |
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297 |
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298 // Just testing... |
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299 // char *message = plot_buf.str (); |
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300 // cout << "[*]" << message << "[*]\n"; |
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301 |
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302 if (parametric_plot && ndim == 2) |
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303 { |
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304 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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305 send_to_plot_stream ("set noparametric\n"); |
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306 char *message = plot_buf.str (); |
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307 send_to_plot_stream (message); |
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308 delete [] message; |
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309 send_to_plot_stream ("set parametric\n"); |
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310 } |
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311 else |
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312 { |
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313 char *message = plot_buf.str (); |
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314 send_to_plot_stream (message); |
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315 delete [] message; |
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316 } |
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317 } |
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318 |
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591
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319 void |
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320 tree_plot_command::print_code (ostream& os) |
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1
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321 { |
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591
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322 print_code_indent (os); |
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86
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323 |
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591
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324 switch (ndim) |
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1
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325 { |
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591
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326 case 1: |
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327 os << "replot"; |
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328 break; |
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777
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329 |
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591
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330 case 2: |
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331 os << "gplot"; |
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332 break; |
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777
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333 |
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591
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334 case 3: |
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335 os << "gsplot"; |
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336 break; |
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777
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337 |
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591
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338 default: |
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771
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339 os << "<unkown plot command>"; |
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591
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340 break; |
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1
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341 } |
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342 |
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591
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343 if (range) |
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344 range->print_code (os); |
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1
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345 |
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591
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346 if (plot_list) |
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347 plot_list->print_code (os); |
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1
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348 } |
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349 |
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578
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350 plot_limits::plot_limits (void) |
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1
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351 { |
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524
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352 x_range = 0; |
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353 y_range = 0; |
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354 z_range = 0; |
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1
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355 } |
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356 |
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578
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357 plot_limits::plot_limits (plot_range *xlim) |
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1
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358 { |
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359 x_range = xlim; |
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524
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360 y_range = 0; |
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361 z_range = 0; |
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1
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362 } |
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363 |
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578
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364 plot_limits::plot_limits (plot_range *xlim, |
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365 plot_range *ylim) |
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1
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366 { |
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367 x_range = xlim; |
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368 y_range = ylim; |
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524
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369 z_range = 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_limits::plot_limits (plot_range *xlim, |
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373 plot_range *ylim, |
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374 plot_range *zlim) |
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1
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375 { |
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376 x_range = xlim; |
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377 y_range = ylim; |
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378 z_range = zlim; |
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379 } |
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380 |
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578
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381 plot_limits::~plot_limits (void) |
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1
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382 { |
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383 delete x_range; |
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384 delete y_range; |
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385 delete z_range; |
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386 } |
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387 |
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388 void |
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578
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389 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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390 { |
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391 if (ndim == 2 || ndim == 3) |
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392 { |
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524
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393 if (x_range) |
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1
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394 x_range->print (plot_buf); |
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395 else |
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396 return; |
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397 |
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524
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398 if (y_range) |
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1
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399 y_range->print (plot_buf); |
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400 else |
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401 return; |
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402 } |
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403 |
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524
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404 if (ndim == 3 && z_range) |
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1
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405 z_range->print (plot_buf); |
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406 } |
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407 |
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591
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408 void |
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409 plot_limits::print_code (ostream& os) |
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410 { |
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411 if (x_range) |
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412 x_range->print_code (os); |
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413 |
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414 if (y_range) |
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415 y_range->print_code (os); |
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416 |
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417 if (z_range) |
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418 z_range->print_code (os); |
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419 } |
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420 |
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578
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421 plot_range::plot_range (void) |
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1
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422 { |
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524
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423 lower = 0; |
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424 upper = 0; |
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1
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425 } |
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426 |
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578
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427 plot_range::plot_range (tree_expression *l, tree_expression *u) |
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1
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428 { |
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429 lower = l; |
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430 upper = u; |
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431 } |
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432 |
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578
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433 plot_range::~plot_range (void) |
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1
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434 { |
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435 delete lower; |
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436 delete upper; |
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437 } |
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438 |
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439 void |
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578
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440 plot_range::print (ostrstream& plot_buf) |
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1
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441 { |
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442 plot_buf << " ["; |
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443 |
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524
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444 if (lower) |
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1
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445 { |
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446 tree_constant lower_val = lower->eval (0); |
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191
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447 if (error_state) |
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448 { |
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240
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449 ::error ("evaluating lower bound of plot range"); |
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191
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450 return; |
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451 } |
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452 else |
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453 { |
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629
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454 double lo = lower_val.double_value (); |
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191
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455 plot_buf << lo; |
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456 } |
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1
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457 } |
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458 |
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459 plot_buf << ":"; |
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460 |
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524
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461 if (upper) |
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1
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462 { |
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463 tree_constant upper_val = upper->eval (0); |
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191
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464 if (error_state) |
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465 { |
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240
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466 ::error ("evaluating upper bound of plot range"); |
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191
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467 return; |
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468 } |
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469 else |
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470 { |
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629
|
471 double hi = upper_val.double_value (); |
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191
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472 plot_buf << hi; |
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473 } |
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1
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474 } |
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475 |
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476 plot_buf << "]"; |
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477 } |
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478 |
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591
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479 void |
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480 plot_range::print_code (ostream& os) |
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481 { |
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482 os << " ["; |
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483 |
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484 if (lower) |
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485 lower->print_code (os); |
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486 |
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487 os << ":"; |
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488 |
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489 if (upper) |
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490 upper->print_code (os); |
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491 |
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492 os << "]"; |
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493 } |
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494 |
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578
|
495 subplot_using::subplot_using (void) |
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1
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496 { |
|
|
497 qualifier_count = 0; |
|
872
|
498 x[0] = x[1] = x[2] = x[3] = 0; |
|
524
|
499 scanf_fmt = 0; |
|
1
|
500 } |
|
|
501 |
|
872
|
502 subplot_using::subplot_using (tree_expression *fmt) : val (4, -1) |
|
1
|
503 { |
|
|
504 qualifier_count = 0; |
|
872
|
505 x[0] = x[1] = x[2] = x[3] = 0; |
|
1
|
506 scanf_fmt = fmt; |
|
|
507 } |
|
|
508 |
|
578
|
509 subplot_using::~subplot_using (void) |
|
1
|
510 { |
|
|
511 delete scanf_fmt; |
|
|
512 } |
|
|
513 |
|
578
|
514 subplot_using * |
|
|
515 subplot_using::set_format (tree_expression *fmt) |
|
1
|
516 { |
|
|
517 scanf_fmt = fmt; |
|
|
518 return this; |
|
|
519 } |
|
|
520 |
|
578
|
521 subplot_using * |
|
|
522 subplot_using::add_qualifier (tree_expression *t) |
|
1
|
523 { |
|
|
524 if (qualifier_count < 4) |
|
|
525 x[qualifier_count] = t; |
|
|
526 |
|
|
527 qualifier_count++; |
|
|
528 |
|
|
529 return this; |
|
|
530 } |
|
|
531 |
|
|
532 int |
|
872
|
533 subplot_using::eval (int ndim, int n_max) |
|
1
|
534 { |
|
|
535 if ((ndim == 2 && qualifier_count > 4) |
|
|
536 || (ndim == 3 && qualifier_count > 3)) |
|
|
537 return -1; |
|
|
538 |
|
872
|
539 if (qualifier_count > 0) |
|
|
540 val.resize (qualifier_count); |
|
|
541 |
|
1
|
542 for (int i = 0; i < qualifier_count; i++) |
|
|
543 { |
|
524
|
544 if (x[i]) |
|
1
|
545 { |
|
|
546 tree_constant tmp = x[i]->eval (0); |
|
191
|
547 if (error_state) |
|
|
548 { |
|
240
|
549 ::error ("evaluating plot using command"); |
|
191
|
550 return -1; |
|
|
551 } |
|
|
552 |
|
872
|
553 double val_tmp; |
|
1
|
554 if (tmp.is_defined ()) |
|
|
555 { |
|
872
|
556 val_tmp = tmp.double_value (); |
|
1
|
557 |
|
872
|
558 if (error_state) |
|
|
559 return -1; |
|
1
|
560 |
|
1086
|
561 if (xisnan (val_tmp)) |
|
|
562 { |
|
|
563 ::error ("NaN is invalid as a column specifier"); |
|
|
564 return -1; |
|
|
565 } |
|
|
566 |
|
872
|
567 int n = NINT (val_tmp); |
|
1086
|
568 |
|
322
|
569 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
570 { |
|
240
|
571 ::error ("using: column %d out of range", n); |
|
1
|
572 return -1; |
|
|
573 } |
|
|
574 else |
|
872
|
575 val.elem (i) = n; |
|
1
|
576 } |
|
|
577 else |
|
|
578 return -1; |
|
|
579 } |
|
|
580 else |
|
|
581 return -1; |
|
|
582 } |
|
|
583 |
|
524
|
584 if (scanf_fmt) |
|
1
|
585 warning ("ignoring scanf format in plot command"); |
|
|
586 |
|
872
|
587 return 0; |
|
|
588 } |
|
|
589 |
|
|
590 ColumnVector |
|
|
591 subplot_using::values (int ndim, int n_max) |
|
|
592 { |
|
|
593 int status = eval (ndim, n_max); |
|
|
594 |
|
1203
|
595 if (status < 0) |
|
872
|
596 return -1; |
|
|
597 |
|
|
598 return val; |
|
|
599 } |
|
|
600 |
|
|
601 int |
|
|
602 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
603 { |
|
|
604 int status = eval (ndim, n_max); |
|
|
605 |
|
1203
|
606 if (status < 0) |
|
872
|
607 return -1; |
|
|
608 |
|
|
609 for (int i = 0; i < qualifier_count; i++) |
|
|
610 { |
|
|
611 if (i == 0) |
|
|
612 plot_buf << " " << GNUPLOT_COMMAND_USING << " "; |
|
|
613 else |
|
|
614 plot_buf << ":"; |
|
|
615 |
|
|
616 plot_buf << val.elem (i); |
|
|
617 } |
|
|
618 |
|
1
|
619 return 0; |
|
|
620 } |
|
|
621 |
|
591
|
622 void |
|
|
623 subplot_using::print_code (ostream& os) |
|
|
624 { |
|
|
625 os << " using "; |
|
|
626 for (int i = 0; i < qualifier_count; i++) |
|
|
627 { |
|
|
628 if (i > 0) |
|
|
629 os << ":"; |
|
|
630 |
|
|
631 if (x[i]) |
|
|
632 x[i]->print_code (os); |
|
|
633 } |
|
|
634 } |
|
|
635 |
|
578
|
636 subplot_style::subplot_style (void) |
|
1
|
637 { |
|
524
|
638 style = 0; |
|
|
639 linetype = 0; |
|
|
640 pointtype = 0; |
|
1
|
641 } |
|
|
642 |
|
578
|
643 subplot_style::subplot_style (char *s) |
|
1
|
644 { |
|
|
645 style = strsave (s); |
|
524
|
646 linetype = 0; |
|
|
647 pointtype = 0; |
|
1
|
648 } |
|
|
649 |
|
578
|
650 subplot_style::subplot_style (char *s, tree_expression *lt) |
|
1
|
651 { |
|
|
652 style = strsave (s); |
|
|
653 linetype = lt; |
|
524
|
654 pointtype = 0; |
|
1
|
655 } |
|
|
656 |
|
578
|
657 subplot_style::subplot_style (char *s, tree_expression *lt, |
|
491
|
658 tree_expression *pt) |
|
1
|
659 { |
|
|
660 style = strsave (s); |
|
|
661 linetype = lt; |
|
|
662 pointtype = pt; |
|
|
663 } |
|
|
664 |
|
578
|
665 subplot_style::~subplot_style (void) |
|
1
|
666 { |
|
|
667 delete [] style; |
|
|
668 delete linetype; |
|
|
669 delete pointtype; |
|
|
670 } |
|
|
671 |
|
|
672 int |
|
578
|
673 subplot_style::print (ostrstream& plot_buf) |
|
1
|
674 { |
|
524
|
675 if (style) |
|
1
|
676 { |
|
866
|
677 plot_buf << " " << GNUPLOT_COMMAND_WITH << " " << style; |
|
1
|
678 |
|
524
|
679 if (linetype) |
|
1
|
680 { |
|
|
681 tree_constant tmp = linetype->eval (0); |
|
191
|
682 if (! error_state && tmp.is_defined ()) |
|
1
|
683 { |
|
629
|
684 double val = tmp.double_value (); |
|
1086
|
685 if (xisnan (val)) |
|
|
686 { |
|
|
687 ::error ("NaN is invalid a plotting line style"); |
|
|
688 return -1; |
|
|
689 } |
|
|
690 else |
|
|
691 plot_buf << " " << NINT (val); |
|
1
|
692 } |
|
|
693 else |
|
191
|
694 { |
|
240
|
695 ::error ("evaluating plot style command"); |
|
191
|
696 return -1; |
|
|
697 } |
|
1
|
698 } |
|
|
699 |
|
524
|
700 if (pointtype) |
|
1
|
701 { |
|
|
702 tree_constant tmp = pointtype->eval (0); |
|
191
|
703 if (! error_state && tmp.is_defined ()) |
|
1
|
704 { |
|
629
|
705 double val = tmp.double_value (); |
|
1086
|
706 if (xisnan (val)) |
|
|
707 { |
|
|
708 ::error ("NaN is invalid a plotting point style"); |
|
|
709 return -1; |
|
|
710 } |
|
|
711 else |
|
|
712 plot_buf << " " << NINT (val); |
|
1
|
713 } |
|
|
714 else |
|
191
|
715 { |
|
240
|
716 ::error ("evaluating plot style command"); |
|
191
|
717 return -1; |
|
|
718 } |
|
1
|
719 } |
|
|
720 } |
|
|
721 else |
|
|
722 return -1; |
|
|
723 |
|
|
724 return 0; |
|
|
725 } |
|
|
726 |
|
872
|
727 int |
|
|
728 subplot_style::errorbars (void) |
|
|
729 { |
|
|
730 return (style |
|
|
731 && (almost_match ("errorbars", style, 1, 0) |
|
|
732 || almost_match ("boxerrorbars", style, 5, 0))); |
|
|
733 } |
|
|
734 |
|
591
|
735 void |
|
|
736 subplot_style::print_code (ostream& os) |
|
|
737 { |
|
|
738 os << " with " << style; |
|
|
739 |
|
|
740 if (linetype) |
|
|
741 { |
|
|
742 os << " "; |
|
|
743 linetype->print_code (os); |
|
|
744 } |
|
|
745 |
|
|
746 if (pointtype) |
|
|
747 { |
|
|
748 os << " "; |
|
|
749 pointtype->print_code (os); |
|
|
750 } |
|
|
751 } |
|
|
752 |
|
878
|
753 subplot::subplot (void) |
|
|
754 { |
|
|
755 plot_data = 0; |
|
999
|
756 using_clause = 0; |
|
|
757 title_clause = 0; |
|
|
758 style_clause = 0; |
|
878
|
759 } |
|
|
760 |
|
|
761 subplot::subplot (tree_expression *data) |
|
|
762 { |
|
|
763 plot_data = data; |
|
999
|
764 using_clause = 0; |
|
|
765 title_clause = 0; |
|
|
766 style_clause = 0; |
|
878
|
767 } |
|
|
768 |
|
|
769 subplot::subplot (subplot_using *u, tree_expression *t, subplot_style *s) |
|
|
770 { |
|
|
771 plot_data = 0; |
|
999
|
772 using_clause = u; |
|
|
773 title_clause = t; |
|
|
774 style_clause = s; |
|
878
|
775 } |
|
|
776 |
|
|
777 subplot::~subplot (void) |
|
|
778 { |
|
|
779 delete plot_data; |
|
999
|
780 delete using_clause; |
|
|
781 delete title_clause; |
|
|
782 delete style_clause; |
|
878
|
783 } |
|
|
784 |
|
|
785 void |
|
|
786 subplot::set_data (tree_expression *data) |
|
|
787 { |
|
|
788 plot_data = data; |
|
|
789 } |
|
|
790 |
|
872
|
791 tree_constant |
|
|
792 subplot::extract_plot_data (int ndim, tree_constant& data) |
|
|
793 { |
|
|
794 tree_constant retval; |
|
|
795 |
|
999
|
796 if (using_clause) |
|
872
|
797 { |
|
999
|
798 ColumnVector val = using_clause->values (ndim); |
|
872
|
799 |
|
|
800 Octave_object args; |
|
|
801 args(1) = val; |
|
|
802 args(0) = tree_constant::magic_colon_t; |
|
|
803 |
|
|
804 Octave_object tmp = data.eval (0, 1, args); |
|
|
805 retval = tmp(0); |
|
|
806 |
|
|
807 if (error_state) |
|
|
808 return tree_constant (); |
|
|
809 } |
|
|
810 else |
|
|
811 { |
|
|
812 retval = data; |
|
|
813 } |
|
|
814 |
|
999
|
815 if (ndim == 2 && style_clause && style_clause->errorbars ()) |
|
872
|
816 { |
|
|
817 int nc = retval.columns (); |
|
|
818 |
|
|
819 if (nc < 3 || nc > 4) |
|
|
820 { |
|
|
821 error ("plots with errorbars require 3 or 4 columns of data"); |
|
|
822 error ("but %d were provided", nc); |
|
|
823 return tree_constant (); |
|
|
824 } |
|
|
825 } |
|
|
826 |
|
|
827 return retval; |
|
|
828 } |
|
|
829 |
|
591
|
830 int |
|
872
|
831 subplot::handle_plot_data (int ndim, ostrstream& plot_buf) |
|
591
|
832 { |
|
|
833 if (plot_data) |
|
|
834 { |
|
|
835 tree_constant data = plot_data->eval (0); |
|
872
|
836 |
|
591
|
837 if (! error_state && data.is_defined ()) |
|
|
838 { |
|
|
839 char *file = 0; |
|
610
|
840 if (data.is_string ()) |
|
591
|
841 { |
|
872
|
842 // Should really try to look at data file to determine n_max. Can't |
|
|
843 // do much about other arbitrary gnuplot commands though... |
|
|
844 |
|
|
845 int n_max = 0; |
|
|
846 |
|
591
|
847 file = tilde_expand (data.string_value ()); |
|
|
848 ifstream ftmp (file); |
|
|
849 if (ftmp) |
|
|
850 { |
|
|
851 plot_buf << " \"" << file << '"'; |
|
|
852 free (file); |
|
|
853 } |
|
|
854 else |
|
|
855 { |
|
|
856 free (file); |
|
|
857 file = 0; |
|
|
858 |
|
|
859 // Opening as a file failed. Let's try passing it along as a plot |
|
|
860 // command. |
|
|
861 plot_buf << " " << data.string_value (); |
|
872
|
862 } |
|
|
863 |
|
999
|
864 if (using_clause) |
|
872
|
865 { |
|
999
|
866 int status = using_clause->print (ndim, n_max, plot_buf); |
|
872
|
867 if (status < 0) |
|
|
868 return -1; |
|
591
|
869 } |
|
|
870 } |
|
872
|
871 else |
|
591
|
872 { |
|
872
|
873 // Eliminate the need for printing a using clause to plot_buf. |
|
|
874 |
|
|
875 tree_constant tmp_data = extract_plot_data (ndim, data); |
|
|
876 |
|
|
877 if (tmp_data.is_defined ()) |
|
|
878 { |
|
|
879 switch (ndim) |
|
|
880 { |
|
|
881 case 2: |
|
|
882 file = save_in_tmp_file (tmp_data, ndim); |
|
|
883 break; |
|
777
|
884 |
|
872
|
885 case 3: |
|
|
886 file = save_in_tmp_file (tmp_data, ndim, |
|
|
887 parametric_plot); |
|
|
888 break; |
|
777
|
889 |
|
872
|
890 default: |
|
|
891 gripe_2_or_3_dim_plot (); |
|
|
892 break; |
|
|
893 } |
|
591
|
894 |
|
872
|
895 if (file) |
|
|
896 { |
|
|
897 mark_for_deletion (file); |
|
|
898 plot_buf << " \"" << file << '"'; |
|
|
899 } |
|
|
900 } |
|
591
|
901 } |
|
|
902 } |
|
|
903 else |
|
|
904 return -1; |
|
|
905 } |
|
|
906 else |
|
|
907 return -1; |
|
|
908 |
|
872
|
909 return 0; |
|
|
910 } |
|
591
|
911 |
|
872
|
912 int |
|
|
913 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
914 { |
|
|
915 int status = handle_plot_data (ndim, plot_buf); |
|
|
916 |
|
|
917 if (status < 0) |
|
|
918 return -1; |
|
591
|
919 |
|
999
|
920 if (title_clause) |
|
591
|
921 { |
|
999
|
922 tree_constant tmp = title_clause->eval (0); |
|
610
|
923 if (! error_state && tmp.is_string ()) |
|
866
|
924 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
925 << '"' << tmp.string_value () << '"'; |
|
591
|
926 else |
|
|
927 { |
|
|
928 warning ("line title must be a string"); |
|
866
|
929 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
930 << '"' << "line " << plot_line_count << '"'; |
|
591
|
931 } |
|
|
932 } |
|
|
933 else |
|
866
|
934 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
935 << '"' << "line " << plot_line_count << '"'; |
|
591
|
936 |
|
999
|
937 if (style_clause) |
|
591
|
938 { |
|
999
|
939 int status = style_clause->print (plot_buf); |
|
591
|
940 if (status < 0) |
|
|
941 return -1; |
|
|
942 } |
|
|
943 |
|
|
944 return 0; |
|
|
945 } |
|
|
946 |
|
|
947 void |
|
|
948 subplot::print_code (ostream& os) |
|
|
949 { |
|
|
950 if (plot_data) |
|
592
|
951 { |
|
|
952 os << " "; |
|
|
953 plot_data->print_code (os); |
|
|
954 } |
|
591
|
955 |
|
999
|
956 if (using_clause) |
|
|
957 using_clause->print_code (os); |
|
591
|
958 |
|
999
|
959 if (title_clause) |
|
|
960 title_clause->print_code (os); |
|
591
|
961 |
|
999
|
962 if (style_clause) |
|
|
963 style_clause->print_code (os); |
|
591
|
964 } |
|
|
965 |
|
883
|
966 int |
|
591
|
967 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
968 { |
|
|
969 int status = 0; |
|
|
970 |
|
|
971 for (Pix p = first (); p != 0; next (p)) |
|
|
972 { |
|
|
973 subplot *elt = this->operator () (p); |
|
|
974 |
|
|
975 plot_line_count++; |
|
|
976 |
|
|
977 if (p != first ()) |
|
|
978 plot_buf << ",\\\n "; |
|
|
979 |
|
|
980 status = elt->print (ndim, plot_buf); |
|
|
981 |
|
|
982 if (status < 0) |
|
|
983 break; |
|
|
984 } |
|
|
985 |
|
|
986 return status; |
|
|
987 } |
|
|
988 |
|
|
989 void |
|
|
990 subplot_list::print_code (ostream& os) |
|
|
991 { |
|
|
992 Pix p = first (); |
|
|
993 |
|
|
994 while (p) |
|
|
995 { |
|
|
996 subplot *elt = this->operator () (p); |
|
|
997 |
|
|
998 next (p); |
|
|
999 |
|
|
1000 if (elt) |
|
|
1001 { |
|
|
1002 elt->print_code (os); |
|
|
1003 |
|
|
1004 if (p) |
|
592
|
1005 os << ","; |
|
591
|
1006 } |
|
|
1007 } |
|
|
1008 } |
|
|
1009 |
|
524
|
1010 char * |
|
|
1011 save_in_tmp_file (tree_constant& t, int ndim, int parametric) |
|
|
1012 { |
|
662
|
1013 char *name = octave_tmp_file_name (); |
|
524
|
1014 if (name) |
|
|
1015 { |
|
|
1016 ofstream file (name); |
|
|
1017 if (file) |
|
|
1018 { |
|
|
1019 switch (ndim) |
|
|
1020 { |
|
|
1021 case 2: |
|
871
|
1022 save_ascii_data (file, t, 0, 1); |
|
524
|
1023 break; |
|
777
|
1024 |
|
524
|
1025 case 3: |
|
607
|
1026 save_three_d (file, t, parametric); |
|
524
|
1027 break; |
|
777
|
1028 |
|
524
|
1029 default: |
|
771
|
1030 gripe_2_or_3_dim_plot (); |
|
524
|
1031 break; |
|
|
1032 } |
|
|
1033 } |
|
|
1034 else |
|
|
1035 { |
|
|
1036 error ("couldn't open temporary output file `%s'", name); |
|
|
1037 name = 0; |
|
|
1038 } |
|
|
1039 } |
|
|
1040 return name; |
|
|
1041 } |
|
|
1042 |
|
|
1043 void |
|
|
1044 mark_for_deletion (const char *filename) |
|
|
1045 { |
|
|
1046 char *tmp = strsave (filename); |
|
|
1047 tmp_files.push (tmp); |
|
|
1048 } |
|
|
1049 |
|
|
1050 void |
|
|
1051 cleanup_tmp_files (void) |
|
|
1052 { |
|
|
1053 while (! tmp_files.empty ()) |
|
|
1054 { |
|
|
1055 char *filename = tmp_files.pop (); |
|
|
1056 unlink (filename); |
|
|
1057 delete [] filename; |
|
|
1058 } |
|
|
1059 } |
|
|
1060 |
|
|
1061 void |
|
|
1062 close_plot_stream (void) |
|
|
1063 { |
|
|
1064 if (plot_stream.is_open ()) |
|
|
1065 plot_stream.close (); |
|
|
1066 |
|
|
1067 plot_line_count = 0; |
|
|
1068 } |
|
|
1069 |
|
883
|
1070 DEFUN ("clearplot", Fclearplot, Sclearplot, 0, 0, |
|
|
1071 "clearplot (): clear the plot window") |
|
|
1072 { |
|
|
1073 Octave_object retval; |
|
|
1074 send_to_plot_stream ("clear\n"); |
|
930
|
1075 |
|
940
|
1076 // XXX FIXME XXX -- instead of just clearing these things, it would be |
|
|
1077 // nice if we could reset things to a user-specified default state. |
|
930
|
1078 |
|
|
1079 send_to_plot_stream ("set title\n"); |
|
|
1080 send_to_plot_stream ("set xlabel\n"); |
|
|
1081 send_to_plot_stream ("set ylabel\n"); |
|
940
|
1082 send_to_plot_stream ("set nogrid\n"); |
|
1000
|
1083 send_to_plot_stream ("set nolabel\n"); |
|
940
|
1084 |
|
|
1085 // This makes a simple `replot' not work after a `clearplot' command |
|
|
1086 // has been issued. |
|
|
1087 |
|
|
1088 plot_line_count = 0; |
|
930
|
1089 |
|
883
|
1090 return retval; |
|
|
1091 } |
|
|
1092 |
|
884
|
1093 DEFALIAS (clg, clearplot); |
|
|
1094 |
|
883
|
1095 DEFUN ("closeplot", Fcloseplot, Scloseplot, 0, 0, |
|
524
|
1096 "closeplot (): close the stream to plotter") |
|
|
1097 { |
|
|
1098 Octave_object retval; |
|
|
1099 close_plot_stream (); |
|
|
1100 return retval; |
|
|
1101 } |
|
|
1102 |
|
883
|
1103 DEFUN_TEXT ("hold", Fhold, Shold, 1, 0, |
|
524
|
1104 "hold [on|off]\n\ |
|
|
1105 \n\ |
|
|
1106 determine whether the plot window is cleared before the next line is\n\ |
|
|
1107 drawn. With no argument, toggle the current state.") |
|
|
1108 { |
|
|
1109 Octave_object retval; |
|
|
1110 |
|
|
1111 DEFINE_ARGV("hold"); |
|
|
1112 |
|
|
1113 switch (argc) |
|
|
1114 { |
|
|
1115 case 1: |
|
|
1116 clear_before_plotting = ! clear_before_plotting; |
|
|
1117 break; |
|
777
|
1118 |
|
524
|
1119 case 2: |
|
|
1120 if (strcasecmp (argv[1], "on") == 0) |
|
|
1121 clear_before_plotting = 0; |
|
|
1122 else if (strcasecmp (argv[1], "off") == 0) |
|
|
1123 clear_before_plotting = 1; |
|
|
1124 else |
|
|
1125 print_usage ("hold"); |
|
|
1126 break; |
|
777
|
1127 |
|
524
|
1128 default: |
|
|
1129 print_usage ("hold"); |
|
|
1130 break; |
|
|
1131 } |
|
|
1132 |
|
|
1133 DELETE_ARGV; |
|
|
1134 |
|
|
1135 return retval; |
|
|
1136 } |
|
|
1137 |
|
735
|
1138 DEFUN ("ishold", Fishold, Sishold, 0, 1, |
|
|
1139 "ishold\n\ |
|
|
1140 \n\ |
|
|
1141 Return 1 if hold is on, otherwise return 0.") |
|
|
1142 { |
|
|
1143 return (double) (! clear_before_plotting); |
|
|
1144 } |
|
|
1145 |
|
883
|
1146 DEFUN ("purge_tmp_files", Fpurge_tmp_files, Spurge_tmp_files, 0, 0, |
|
524
|
1147 "delete temporary data files used for plotting") |
|
|
1148 { |
|
|
1149 Octave_object retval; |
|
|
1150 cleanup_tmp_files (); |
|
|
1151 return retval; |
|
|
1152 } |
|
|
1153 |
|
883
|
1154 DEFUN_TEXT ("set", Fset, Sset, -1, 0, |
|
524
|
1155 "set [options]\n\ |
|
|
1156 \n\ |
|
|
1157 set plotting options") |
|
|
1158 { |
|
|
1159 Octave_object retval; |
|
|
1160 |
|
|
1161 DEFINE_ARGV("set"); |
|
|
1162 |
|
|
1163 ostrstream plot_buf; |
|
|
1164 |
|
|
1165 if (argc > 1) |
|
|
1166 { |
|
|
1167 if (almost_match ("parametric", argv[1], 3)) |
|
|
1168 parametric_plot = 1; |
|
|
1169 else if (almost_match ("noparametric", argv[1], 5)) |
|
|
1170 parametric_plot = 0; |
|
943
|
1171 else if (almost_match ("term", argv[1], 1)) |
|
|
1172 { |
|
|
1173 delete [] gnuplot_terminal_type; |
|
|
1174 ostrstream buf; |
|
|
1175 for (int i = 2; i < argc; i++) |
|
|
1176 buf << argv[i] << " "; |
|
|
1177 buf << "\n" << ends; |
|
|
1178 gnuplot_terminal_type = buf.str (); |
|
|
1179 } |
|
524
|
1180 } |
|
|
1181 |
|
|
1182 for (int i = 0; i < argc; i++) |
|
|
1183 plot_buf << argv[i] << " "; |
|
|
1184 |
|
|
1185 plot_buf << "\n" << ends; |
|
|
1186 |
|
|
1187 char *plot_command = plot_buf.str (); |
|
|
1188 send_to_plot_stream (plot_command); |
|
|
1189 |
|
|
1190 delete [] plot_command; |
|
|
1191 |
|
|
1192 DELETE_ARGV; |
|
|
1193 |
|
|
1194 return retval; |
|
|
1195 } |
|
|
1196 |
|
883
|
1197 DEFUN_TEXT ("show", Fshow, Sshow, -1, 0, |
|
524
|
1198 "show [options]\n\ |
|
|
1199 \n\ |
|
|
1200 show plotting options") |
|
|
1201 { |
|
|
1202 Octave_object retval; |
|
|
1203 |
|
|
1204 DEFINE_ARGV("show"); |
|
|
1205 |
|
|
1206 ostrstream plot_buf; |
|
|
1207 |
|
|
1208 for (int i = 0; i < argc; i++) |
|
|
1209 plot_buf << argv[i] << " "; |
|
|
1210 |
|
|
1211 plot_buf << "\n" << ends; |
|
|
1212 |
|
|
1213 char *plot_command = plot_buf.str (); |
|
|
1214 send_to_plot_stream (plot_command); |
|
|
1215 |
|
|
1216 delete [] plot_command; |
|
|
1217 |
|
|
1218 DELETE_ARGV; |
|
|
1219 |
|
|
1220 return retval; |
|
|
1221 } |
|
|
1222 |
|
1
|
1223 /* |
|
|
1224 ;;; Local Variables: *** |
|
|
1225 ;;; mode: C++ *** |
|
|
1226 ;;; page-delimiter: "^/\\*" *** |
|
|
1227 ;;; End: *** |
|
|
1228 */ |
