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1
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1 /* |
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2 |
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1827
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3 Copyright (C) 1996 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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1315
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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1297
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23 #if defined (__GNUG__) |
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24 #pragma implementation |
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25 #endif |
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26 |
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240
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27 #ifdef HAVE_CONFIG_H |
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1192
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28 #include <config.h> |
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1
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29 #endif |
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30 |
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1343
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31 #include <cstring> |
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32 |
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1728
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33 #include <string> |
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34 |
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1350
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35 #include <fstream.h> |
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36 #include <iostream.h> |
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37 #include <strstream.h> |
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38 |
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39 #ifdef HAVE_UNISTD_H |
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524
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40 #include <sys/types.h> |
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41 #include <unistd.h> |
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42 #endif |
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1
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43 |
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524
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44 #include "SLStack.h" |
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45 #include "procstream.h" |
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46 |
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1802
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47 #include "file-ops.h" |
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1755
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48 #include "str-vec.h" |
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49 |
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1352
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50 #include "defun.h" |
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51 #include "error.h" |
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52 #include "gripes.h" |
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53 #include "help.h" |
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54 #include "load-save.h" |
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1742
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55 #include "mappers.h" |
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56 #include "oct-obj.h" |
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57 #include "pt-cmd.h" |
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58 #include "pt-exp.h" |
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59 #include "pt-plot.h" |
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2124
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60 #include "pt-walk.h" |
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2209
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61 #include "sighandlers.h" |
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1750
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62 #include "sysdep.h" |
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1
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63 #include "utils.h" |
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64 |
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2176
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65 // If TRUE, a replot command is issued automatically each time a plot |
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66 // changes in some way. |
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67 static bool Vautomatic_replot; |
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68 |
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69 // The name of the shell command to execute to start gnuplot. |
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70 static string Vgnuplot_binary; |
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71 |
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2289
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72 // TRUE if gnuplot appears to support multiple plot windows with X11. |
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73 static bool Vgnuplot_has_frames; |
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74 |
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2176
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75 // TRUE if gnuplot appears to support multiplot. |
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76 static bool Vgnuplot_has_multiplot; |
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77 |
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1358
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78 // The number of lines we've plotted so far. |
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735
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79 static int plot_line_count = 0; |
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1
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80 |
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81 // Is this a parametric plot? Makes a difference for 3D plotting. |
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1827
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82 static bool parametric_plot = false; |
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1
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83 |
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943
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84 // The gnuplot terminal type. |
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85 static char *gnuplot_terminal_type = 0; |
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86 |
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478
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87 // Should the graph window be cleared before plotting the next line? |
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1827
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88 static bool clear_before_plotting = true; |
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478
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89 |
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524
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90 // List of files to delete when we exit or crash. |
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1750
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91 static SLStack <string> tmp_files; |
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524
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92 |
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93 // Pipe to gnuplot. |
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1449
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94 static oprocstream *plot_stream = 0; |
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524
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95 |
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2211
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96 // ID of the plotter process. |
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97 static pid_t plot_stream_pid = 0; |
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98 |
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866
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99 // Use shortest possible abbreviations to minimize trouble caused by |
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100 // gnuplot's fixed-length command line buffer. |
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101 |
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102 #ifndef GNUPLOT_COMMAND_PLOT |
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103 #define GNUPLOT_COMMAND_PLOT "pl" |
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104 #endif |
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105 |
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106 #ifndef GNUPLOT_COMMAND_REPLOT |
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107 #define GNUPLOT_COMMAND_REPLOT "rep" |
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108 #endif |
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109 |
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110 #ifndef GNUPLOT_COMMAND_SPLOT |
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111 #define GNUPLOT_COMMAND_SPLOT "sp" |
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112 #endif |
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113 |
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114 #ifndef GNUPLOT_COMMAND_USING |
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115 #define GNUPLOT_COMMAND_USING "u" |
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116 #endif |
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117 |
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118 #ifndef GNUPLOT_COMMAND_WITH |
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119 #define GNUPLOT_COMMAND_WITH "w" |
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120 #endif |
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121 |
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122 #ifndef GNUPLOT_COMMAND_TITLE |
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123 #define GNUPLOT_COMMAND_TITLE "t" |
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124 #endif |
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125 |
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597
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126 static void |
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2209
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127 plot_stream_death_handler (pid_t pid, int) |
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128 { |
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129 close_plot_stream (); |
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130 |
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131 warning ("connection to external plotter (pid = %d) lost --", pid); |
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132 warning ("please try your plot command(s) again"); |
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133 } |
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134 |
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135 static void |
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597
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136 open_plot_stream (void) |
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137 { |
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1827
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138 static bool initialized = false; |
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597
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139 |
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1449
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140 if (plot_stream && ! *plot_stream) |
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141 { |
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142 delete plot_stream; |
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143 plot_stream = 0; |
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144 } |
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145 |
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146 if (! plot_stream) |
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597
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147 { |
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1827
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148 initialized = false; |
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943
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149 |
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597
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150 plot_line_count = 0; |
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151 |
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2176
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152 string plot_prog = Vgnuplot_binary; |
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1755
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153 |
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2209
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154 if (plot_prog.empty ()) |
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155 plot_prog = "gnuplot"; |
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156 |
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157 // XXX FIXME XXX -- I'm not sure this is the right thing to do, |
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158 // but without it, C-c at the octave prompt will kill gnuplot... |
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159 |
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2211
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160 #if defined (HAVE_POSIX_SIGNALS) |
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161 sigset_t set, oset; |
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162 sigemptyset (&set); |
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163 sigaddset (&set, SIGCHLD); |
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164 sigaddset (&set, SIGINT); |
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165 sigprocmask (SIG_BLOCK, &set, &oset); |
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166 #endif |
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2209
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167 |
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168 plot_stream = new oprocstream (plot_prog.c_str ()); |
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169 |
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170 if (plot_stream) |
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597
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171 { |
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2209
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172 if (! *plot_stream) |
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1449
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173 { |
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174 delete plot_stream; |
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175 plot_stream = 0; |
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2209
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176 |
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177 error ("plot: unable to open pipe to `%s'", plot_prog.c_str ()); |
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1449
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178 } |
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2209
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179 else |
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597
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180 { |
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2211
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181 plot_stream_pid = plot_stream->pid (); |
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182 octave_child_list::insert (plot_stream_pid, |
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183 plot_stream_death_handler); |
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597
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184 } |
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185 } |
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186 else |
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2209
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187 error ("plot: unable to open pipe to `%s'", plot_prog.c_str ()); |
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2211
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188 |
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189 #if defined (HAVE_POSIX_SIGNALS) |
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190 sigprocmask (SIG_SETMASK, &oset, 0); |
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191 #endif |
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597
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192 } |
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193 |
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1449
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194 if (! error_state && plot_stream && *plot_stream && ! initialized) |
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597
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195 { |
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1827
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196 initialized = true; |
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1449
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197 *plot_stream << "set data style lines\n"; |
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943
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198 |
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199 if (gnuplot_terminal_type) |
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1449
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200 *plot_stream << "set term " << gnuplot_terminal_type << "\n"; |
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597
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201 } |
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202 } |
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203 |
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204 static int |
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205 send_to_plot_stream (const char *cmd) |
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206 { |
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1449
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207 if (! (plot_stream && *plot_stream)) |
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597
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208 { |
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209 open_plot_stream (); |
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210 |
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211 if (error_state) |
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212 return -1; |
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213 } |
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214 |
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930
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215 int replot_len = strlen (GNUPLOT_COMMAND_REPLOT); |
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216 int splot_len = strlen (GNUPLOT_COMMAND_SPLOT); |
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217 int plot_len = strlen (GNUPLOT_COMMAND_PLOT); |
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218 |
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1827
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219 bool is_replot = (strncmp (cmd, GNUPLOT_COMMAND_REPLOT, replot_len) == 0); |
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220 bool is_splot = (strncmp (cmd, GNUPLOT_COMMAND_SPLOT, splot_len) == 0); |
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221 bool is_plot = (strncmp (cmd, GNUPLOT_COMMAND_PLOT, plot_len) == 0); |
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661
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222 |
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223 if (plot_line_count == 0 && is_replot) |
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597
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224 error ("replot: no previous plot"); |
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225 else |
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226 { |
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1449
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227 *plot_stream << cmd; |
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930
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228 |
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661
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229 if (! (is_replot || is_splot || is_plot) |
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230 && plot_line_count > 0 |
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2176
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231 && Vautomatic_replot) |
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1449
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232 *plot_stream << GNUPLOT_COMMAND_REPLOT << "\n"; |
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930
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233 |
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1449
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234 plot_stream->flush (); |
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597
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235 } |
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236 |
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237 return 0; |
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238 } |
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239 |
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581
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240 // Plotting, eh? |
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1
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241 |
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242 tree_plot_command::~tree_plot_command (void) |
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243 { |
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244 delete range; |
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245 delete plot_list; |
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246 } |
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247 |
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578
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248 void |
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249 tree_plot_command::eval (void) |
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1
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250 { |
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143
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251 if (error_state) |
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578
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252 return; |
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143
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253 |
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597
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254 open_plot_stream (); |
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255 |
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1
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256 ostrstream plot_buf; |
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257 |
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258 switch (ndim) |
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259 { |
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476
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260 case 1: |
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478
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261 if (plot_line_count == 0) |
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262 { |
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263 if (plot_list) |
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866
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264 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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265 else |
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266 { |
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267 ::error ("replot: must have something to plot"); |
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578
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268 return; |
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478
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269 } |
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270 } |
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271 else |
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866
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272 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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476
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273 break; |
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777
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274 |
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1
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275 case 2: |
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478
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276 if (clear_before_plotting || plot_line_count == 0) |
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277 { |
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278 plot_line_count = 0; |
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866
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279 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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280 } |
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281 else |
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930
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282 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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283 break; |
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777
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284 |
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1
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285 case 3: |
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930
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286 if (clear_before_plotting || plot_line_count == 0) |
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287 { |
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288 plot_line_count = 0; |
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289 plot_buf << GNUPLOT_COMMAND_SPLOT; |
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290 } |
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291 else |
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292 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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293 break; |
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777
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294 |
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1
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295 default: |
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771
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296 gripe_2_or_3_dim_plot (); |
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297 return; |
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1
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298 } |
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299 |
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524
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300 if (range) |
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478
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301 { |
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302 if (plot_line_count == 0) |
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303 range->print (ndim, plot_buf); |
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304 else |
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305 warning ("can't specify new plot ranges with `replot' or while\ |
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306 hold is on"); |
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307 } |
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1
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308 |
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191
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309 if (error_state) |
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578
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310 return; |
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191
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311 |
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591
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312 if (plot_list) |
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1
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313 { |
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591
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314 int status = plot_list->print (ndim, plot_buf); |
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578
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315 |
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771
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316 if (error_state || status < 0) |
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578
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317 return; |
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1
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318 } |
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319 |
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320 plot_buf << "\n" << ends; |
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321 |
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1358
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322 // Just testing... |
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323 // char *message = plot_buf.str (); |
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324 // cout << "[*]" << message << "[*]\n"; |
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1
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325 |
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326 if (parametric_plot && ndim == 2) |
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327 { |
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328 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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329 send_to_plot_stream ("set noparametric\n"); |
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330 char *message = plot_buf.str (); |
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331 send_to_plot_stream (message); |
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332 delete [] message; |
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333 send_to_plot_stream ("set parametric\n"); |
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334 } |
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335 else |
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336 { |
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337 char *message = plot_buf.str (); |
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338 send_to_plot_stream (message); |
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339 delete [] message; |
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340 } |
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341 } |
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342 |
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591
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343 void |
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2124
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344 tree_plot_command::accept (tree_walker& tw) |
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1
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345 { |
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2124
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346 tw.visit_plot_command (*this); |
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1
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347 } |
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348 |
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578
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349 plot_limits::~plot_limits (void) |
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1
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350 { |
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351 delete x_range; |
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352 delete y_range; |
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353 delete z_range; |
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354 } |
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355 |
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356 void |
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578
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357 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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358 { |
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359 if (ndim == 2 || ndim == 3) |
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360 { |
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524
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361 if (x_range) |
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1
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362 x_range->print (plot_buf); |
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363 else |
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364 return; |
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365 |
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524
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366 if (y_range) |
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1
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367 y_range->print (plot_buf); |
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368 else |
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369 return; |
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370 } |
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371 |
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524
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372 if (ndim == 3 && z_range) |
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1
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373 z_range->print (plot_buf); |
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374 } |
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375 |
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591
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376 void |
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2124
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377 plot_limits::accept (tree_walker& tw) |
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591
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378 { |
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2124
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379 tw.visit_plot_limits (*this); |
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591
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380 } |
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381 |
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578
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382 plot_range::~plot_range (void) |
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1
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383 { |
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384 delete lower; |
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385 delete upper; |
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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_range::print (ostrstream& plot_buf) |
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1
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390 { |
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391 plot_buf << " ["; |
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392 |
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524
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393 if (lower) |
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1
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394 { |
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2086
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395 octave_value lower_val = lower->eval (false); |
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191
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396 if (error_state) |
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397 { |
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240
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398 ::error ("evaluating lower bound of plot range"); |
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191
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399 return; |
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400 } |
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401 else |
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402 { |
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629
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403 double lo = lower_val.double_value (); |
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191
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404 plot_buf << lo; |
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405 } |
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1
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406 } |
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407 |
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408 plot_buf << ":"; |
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409 |
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524
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410 if (upper) |
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1
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411 { |
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2086
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412 octave_value upper_val = upper->eval (false); |
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191
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413 if (error_state) |
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414 { |
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240
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415 ::error ("evaluating upper bound of plot range"); |
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191
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416 return; |
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417 } |
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418 else |
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419 { |
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629
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420 double hi = upper_val.double_value (); |
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191
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421 plot_buf << hi; |
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422 } |
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1
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423 } |
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424 |
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425 plot_buf << "]"; |
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426 } |
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427 |
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591
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428 void |
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2124
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429 plot_range::accept (tree_walker& tw) |
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591
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430 { |
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2124
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431 tw.visit_plot_range (*this); |
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591
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432 } |
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433 |
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578
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434 subplot_using::~subplot_using (void) |
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1
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435 { |
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436 delete scanf_fmt; |
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437 } |
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438 |
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439 int |
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872
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440 subplot_using::eval (int ndim, int n_max) |
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1
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441 { |
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2124
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442 if ((ndim == 2 && qual_count > 4) |
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443 || (ndim == 3 && qual_count > 3)) |
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1
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444 return -1; |
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445 |
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2124
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446 if (qual_count > 0) |
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447 val.resize (qual_count); |
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872
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448 |
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2124
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449 for (int i = 0; i < qual_count; i++) |
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1
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450 { |
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524
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451 if (x[i]) |
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1
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452 { |
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2086
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453 octave_value tmp = x[i]->eval (false); |
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191
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454 if (error_state) |
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455 { |
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240
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456 ::error ("evaluating plot using command"); |
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191
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457 return -1; |
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458 } |
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459 |
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872
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460 double val_tmp; |
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1
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461 if (tmp.is_defined ()) |
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462 { |
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872
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463 val_tmp = tmp.double_value (); |
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1
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464 |
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872
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465 if (error_state) |
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466 return -1; |
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1
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467 |
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1086
|
468 if (xisnan (val_tmp)) |
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469 { |
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470 ::error ("NaN is invalid as a column specifier"); |
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471 return -1; |
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472 } |
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473 |
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872
|
474 int n = NINT (val_tmp); |
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1086
|
475 |
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322
|
476 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
477 { |
|
240
|
478 ::error ("using: column %d out of range", n); |
|
1
|
479 return -1; |
|
|
480 } |
|
|
481 else |
|
872
|
482 val.elem (i) = n; |
|
1
|
483 } |
|
|
484 else |
|
|
485 return -1; |
|
|
486 } |
|
|
487 else |
|
|
488 return -1; |
|
|
489 } |
|
|
490 |
|
524
|
491 if (scanf_fmt) |
|
1
|
492 warning ("ignoring scanf format in plot command"); |
|
|
493 |
|
872
|
494 return 0; |
|
|
495 } |
|
|
496 |
|
|
497 ColumnVector |
|
|
498 subplot_using::values (int ndim, int n_max) |
|
|
499 { |
|
|
500 int status = eval (ndim, n_max); |
|
|
501 |
|
1203
|
502 if (status < 0) |
|
872
|
503 return -1; |
|
|
504 |
|
|
505 return val; |
|
|
506 } |
|
|
507 |
|
|
508 int |
|
|
509 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
510 { |
|
|
511 int status = eval (ndim, n_max); |
|
|
512 |
|
1203
|
513 if (status < 0) |
|
872
|
514 return -1; |
|
|
515 |
|
2124
|
516 for (int i = 0; i < qual_count; i++) |
|
872
|
517 { |
|
|
518 if (i == 0) |
|
|
519 plot_buf << " " << GNUPLOT_COMMAND_USING << " "; |
|
|
520 else |
|
|
521 plot_buf << ":"; |
|
|
522 |
|
|
523 plot_buf << val.elem (i); |
|
|
524 } |
|
|
525 |
|
1
|
526 return 0; |
|
|
527 } |
|
|
528 |
|
591
|
529 void |
|
2124
|
530 subplot_using::accept (tree_walker& tw) |
|
1
|
531 { |
|
2124
|
532 tw.visit_subplot_using (*this); |
|
1
|
533 } |
|
|
534 |
|
578
|
535 subplot_style::~subplot_style (void) |
|
1622
|
536 { |
|
2124
|
537 delete sp_linetype; |
|
|
538 delete sp_pointtype; |
|
1
|
539 } |
|
|
540 |
|
|
541 int |
|
578
|
542 subplot_style::print (ostrstream& plot_buf) |
|
1
|
543 { |
|
2124
|
544 if (! sp_style.empty ()) |
|
1
|
545 { |
|
2124
|
546 plot_buf << " " << GNUPLOT_COMMAND_WITH << " " << sp_style; |
|
1
|
547 |
|
2124
|
548 if (sp_linetype) |
|
1
|
549 { |
|
2124
|
550 octave_value tmp = sp_linetype->eval (false); |
|
191
|
551 if (! error_state && tmp.is_defined ()) |
|
1
|
552 { |
|
629
|
553 double val = tmp.double_value (); |
|
1086
|
554 if (xisnan (val)) |
|
|
555 { |
|
|
556 ::error ("NaN is invalid a plotting line style"); |
|
|
557 return -1; |
|
|
558 } |
|
|
559 else |
|
|
560 plot_buf << " " << NINT (val); |
|
1
|
561 } |
|
|
562 else |
|
191
|
563 { |
|
240
|
564 ::error ("evaluating plot style command"); |
|
191
|
565 return -1; |
|
|
566 } |
|
1
|
567 } |
|
|
568 |
|
2124
|
569 if (sp_pointtype) |
|
1
|
570 { |
|
2124
|
571 octave_value tmp = sp_pointtype->eval (false); |
|
191
|
572 if (! error_state && tmp.is_defined ()) |
|
1
|
573 { |
|
629
|
574 double val = tmp.double_value (); |
|
1086
|
575 if (xisnan (val)) |
|
|
576 { |
|
|
577 ::error ("NaN is invalid a plotting point style"); |
|
|
578 return -1; |
|
|
579 } |
|
|
580 else |
|
|
581 plot_buf << " " << NINT (val); |
|
1
|
582 } |
|
|
583 else |
|
191
|
584 { |
|
240
|
585 ::error ("evaluating plot style command"); |
|
191
|
586 return -1; |
|
|
587 } |
|
1
|
588 } |
|
|
589 } |
|
|
590 else |
|
|
591 return -1; |
|
|
592 |
|
|
593 return 0; |
|
|
594 } |
|
|
595 |
|
872
|
596 int |
|
|
597 subplot_style::errorbars (void) |
|
|
598 { |
|
2124
|
599 return (almost_match ("errorbars", sp_style, 1, 0) |
|
|
600 || almost_match ("boxerrorbars", sp_style, 5, 0)); |
|
872
|
601 } |
|
|
602 |
|
591
|
603 void |
|
2124
|
604 subplot_style::accept (tree_walker& tw) |
|
591
|
605 { |
|
2124
|
606 tw.visit_subplot_style (*this); |
|
591
|
607 } |
|
|
608 |
|
878
|
609 subplot::~subplot (void) |
|
|
610 { |
|
2124
|
611 delete sp_plot_data; |
|
|
612 delete sp_using_clause; |
|
|
613 delete sp_title_clause; |
|
|
614 delete sp_style_clause; |
|
878
|
615 } |
|
|
616 |
|
2086
|
617 octave_value |
|
|
618 subplot::extract_plot_data (int ndim, octave_value& data) |
|
872
|
619 { |
|
2086
|
620 octave_value retval; |
|
872
|
621 |
|
2124
|
622 if (sp_using_clause) |
|
872
|
623 { |
|
2124
|
624 ColumnVector val = sp_using_clause->values (ndim); |
|
872
|
625 |
|
2086
|
626 octave_value_list args; |
|
872
|
627 args(1) = val; |
|
2086
|
628 args(0) = octave_value::magic_colon_t; |
|
872
|
629 |
|
2086
|
630 octave_value_list tmp = data.eval (0, 1, args); |
|
872
|
631 retval = tmp(0); |
|
|
632 |
|
|
633 if (error_state) |
|
2086
|
634 return octave_value (); |
|
872
|
635 } |
|
|
636 else |
|
|
637 { |
|
|
638 retval = data; |
|
|
639 } |
|
|
640 |
|
2124
|
641 if (ndim == 2 && sp_style_clause && sp_style_clause->errorbars ()) |
|
872
|
642 { |
|
|
643 int nc = retval.columns (); |
|
|
644 |
|
|
645 if (nc < 3 || nc > 4) |
|
|
646 { |
|
|
647 error ("plots with errorbars require 3 or 4 columns of data"); |
|
|
648 error ("but %d were provided", nc); |
|
2086
|
649 return octave_value (); |
|
872
|
650 } |
|
|
651 } |
|
|
652 |
|
|
653 return retval; |
|
|
654 } |
|
|
655 |
|
591
|
656 int |
|
872
|
657 subplot::handle_plot_data (int ndim, ostrstream& plot_buf) |
|
591
|
658 { |
|
2124
|
659 if (sp_plot_data) |
|
591
|
660 { |
|
2124
|
661 octave_value data = sp_plot_data->eval (false); |
|
872
|
662 |
|
591
|
663 if (! error_state && data.is_defined ()) |
|
|
664 { |
|
1750
|
665 string file; |
|
|
666 |
|
610
|
667 if (data.is_string ()) |
|
591
|
668 { |
|
1358
|
669 // Should really try to look at data file to determine |
|
|
670 // n_max. Can't do much about other arbitrary gnuplot |
|
|
671 // commands though... |
|
872
|
672 |
|
|
673 int n_max = 0; |
|
|
674 |
|
1750
|
675 file = oct_tilde_expand (data.string_value ()); |
|
1728
|
676 |
|
1750
|
677 ifstream ftmp (file.c_str ()); |
|
|
678 |
|
591
|
679 if (ftmp) |
|
|
680 { |
|
|
681 plot_buf << " \"" << file << '"'; |
|
|
682 } |
|
|
683 else |
|
|
684 { |
|
1750
|
685 file = ""; |
|
591
|
686 |
|
1358
|
687 // Opening as a file failed. Let's try passing it |
|
|
688 // along as a plot command. |
|
|
689 |
|
591
|
690 plot_buf << " " << data.string_value (); |
|
872
|
691 } |
|
|
692 |
|
2124
|
693 if (sp_using_clause) |
|
872
|
694 { |
|
2124
|
695 int status = sp_using_clause->print (ndim, n_max, plot_buf); |
|
1750
|
696 |
|
872
|
697 if (status < 0) |
|
|
698 return -1; |
|
591
|
699 } |
|
|
700 } |
|
872
|
701 else |
|
591
|
702 { |
|
1358
|
703 // Eliminate the need for printing a using clause to |
|
|
704 // plot_buf. |
|
872
|
705 |
|
2086
|
706 octave_value tmp_data = extract_plot_data (ndim, data); |
|
872
|
707 |
|
|
708 if (tmp_data.is_defined ()) |
|
|
709 { |
|
|
710 switch (ndim) |
|
|
711 { |
|
|
712 case 2: |
|
|
713 file = save_in_tmp_file (tmp_data, ndim); |
|
|
714 break; |
|
777
|
715 |
|
872
|
716 case 3: |
|
|
717 file = save_in_tmp_file (tmp_data, ndim, |
|
|
718 parametric_plot); |
|
|
719 break; |
|
777
|
720 |
|
872
|
721 default: |
|
|
722 gripe_2_or_3_dim_plot (); |
|
|
723 break; |
|
|
724 } |
|
591
|
725 |
|
1750
|
726 if (file.length () > 0) |
|
872
|
727 { |
|
|
728 mark_for_deletion (file); |
|
|
729 plot_buf << " \"" << file << '"'; |
|
|
730 } |
|
|
731 } |
|
591
|
732 } |
|
|
733 } |
|
|
734 else |
|
|
735 return -1; |
|
|
736 } |
|
|
737 else |
|
|
738 return -1; |
|
|
739 |
|
872
|
740 return 0; |
|
|
741 } |
|
591
|
742 |
|
872
|
743 int |
|
|
744 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
745 { |
|
|
746 int status = handle_plot_data (ndim, plot_buf); |
|
|
747 |
|
|
748 if (status < 0) |
|
|
749 return -1; |
|
591
|
750 |
|
2124
|
751 if (sp_title_clause) |
|
591
|
752 { |
|
2124
|
753 octave_value tmp = sp_title_clause->eval (false); |
|
610
|
754 if (! error_state && tmp.is_string ()) |
|
866
|
755 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
756 << '"' << tmp.string_value () << '"'; |
|
591
|
757 else |
|
|
758 { |
|
|
759 warning ("line title must be a string"); |
|
866
|
760 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
761 << '"' << "line " << plot_line_count << '"'; |
|
591
|
762 } |
|
|
763 } |
|
|
764 else |
|
866
|
765 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
766 << '"' << "line " << plot_line_count << '"'; |
|
591
|
767 |
|
2124
|
768 if (sp_style_clause) |
|
591
|
769 { |
|
2124
|
770 int status = sp_style_clause->print (plot_buf); |
|
591
|
771 if (status < 0) |
|
|
772 return -1; |
|
|
773 } |
|
|
774 |
|
|
775 return 0; |
|
|
776 } |
|
|
777 |
|
|
778 void |
|
2124
|
779 subplot::accept (tree_walker& tw) |
|
591
|
780 { |
|
2124
|
781 tw.visit_subplot (*this); |
|
591
|
782 } |
|
|
783 |
|
1622
|
784 subplot_list::~subplot_list (void) |
|
|
785 { |
|
|
786 while (! empty ()) |
|
|
787 { |
|
|
788 subplot *t = remove_front (); |
|
|
789 delete t; |
|
|
790 } |
|
|
791 } |
|
|
792 |
|
883
|
793 int |
|
591
|
794 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
795 { |
|
|
796 int status = 0; |
|
|
797 |
|
|
798 for (Pix p = first (); p != 0; next (p)) |
|
|
799 { |
|
|
800 subplot *elt = this->operator () (p); |
|
|
801 |
|
|
802 plot_line_count++; |
|
|
803 |
|
|
804 if (p != first ()) |
|
|
805 plot_buf << ",\\\n "; |
|
|
806 |
|
|
807 status = elt->print (ndim, plot_buf); |
|
|
808 |
|
|
809 if (status < 0) |
|
|
810 break; |
|
|
811 } |
|
|
812 |
|
|
813 return status; |
|
|
814 } |
|
|
815 |
|
|
816 void |
|
2124
|
817 subplot_list::accept (tree_walker& tw) |
|
591
|
818 { |
|
2124
|
819 tw.visit_subplot_list (*this); |
|
591
|
820 } |
|
|
821 |
|
1755
|
822 string |
|
2086
|
823 save_in_tmp_file (octave_value& t, int ndim, bool parametric) |
|
524
|
824 { |
|
1802
|
825 string name = oct_tempnam (); |
|
1755
|
826 |
|
|
827 if (! name.empty ()) |
|
524
|
828 { |
|
1755
|
829 ofstream file (name.c_str ()); |
|
|
830 |
|
524
|
831 if (file) |
|
|
832 { |
|
|
833 switch (ndim) |
|
|
834 { |
|
|
835 case 2: |
|
1755
|
836 save_ascii_data (file, t, name, 1); |
|
524
|
837 break; |
|
777
|
838 |
|
524
|
839 case 3: |
|
607
|
840 save_three_d (file, t, parametric); |
|
524
|
841 break; |
|
777
|
842 |
|
524
|
843 default: |
|
771
|
844 gripe_2_or_3_dim_plot (); |
|
524
|
845 break; |
|
|
846 } |
|
|
847 } |
|
|
848 else |
|
|
849 { |
|
1755
|
850 error ("couldn't open temporary output file `%s'", name.c_str ()); |
|
|
851 name.resize (0); |
|
524
|
852 } |
|
|
853 } |
|
1755
|
854 |
|
524
|
855 return name; |
|
|
856 } |
|
|
857 |
|
|
858 void |
|
1750
|
859 mark_for_deletion (const string& file) |
|
524
|
860 { |
|
1750
|
861 tmp_files.push (file); |
|
524
|
862 } |
|
|
863 |
|
|
864 void |
|
|
865 cleanup_tmp_files (void) |
|
|
866 { |
|
|
867 while (! tmp_files.empty ()) |
|
|
868 { |
|
1750
|
869 string filename = tmp_files.pop (); |
|
|
870 unlink (filename.c_str ()); |
|
524
|
871 } |
|
|
872 } |
|
|
873 |
|
|
874 void |
|
|
875 close_plot_stream (void) |
|
|
876 { |
|
2211
|
877 octave_child_list::remove (plot_stream_pid); |
|
|
878 |
|
1449
|
879 if (plot_stream) |
|
|
880 { |
|
|
881 delete plot_stream; |
|
|
882 plot_stream = 0; |
|
|
883 } |
|
524
|
884 |
|
|
885 plot_line_count = 0; |
|
|
886 } |
|
|
887 |
|
1328
|
888 void |
|
1755
|
889 do_external_plotter_cd (const string& newdir) |
|
1328
|
890 { |
|
1449
|
891 if (plot_stream && *plot_stream) |
|
1328
|
892 { |
|
|
893 ostrstream plot_buf; |
|
|
894 plot_buf << "cd \"" << newdir << "\"\n" << ends; |
|
|
895 char *message = plot_buf.str (); |
|
|
896 send_to_plot_stream (message); |
|
|
897 delete [] message; |
|
|
898 } |
|
|
899 } |
|
|
900 |
|
1957
|
901 DEFUN (clearplot, , , |
|
883
|
902 "clearplot (): clear the plot window") |
|
|
903 { |
|
2086
|
904 octave_value_list retval; |
|
883
|
905 send_to_plot_stream ("clear\n"); |
|
930
|
906 |
|
1358
|
907 // XXX FIXME XXX -- instead of just clearing these things, it would |
|
|
908 // be nice if we could reset things to a user-specified default |
|
|
909 // state. |
|
930
|
910 |
|
|
911 send_to_plot_stream ("set title\n"); |
|
|
912 send_to_plot_stream ("set xlabel\n"); |
|
|
913 send_to_plot_stream ("set ylabel\n"); |
|
940
|
914 send_to_plot_stream ("set nogrid\n"); |
|
1000
|
915 send_to_plot_stream ("set nolabel\n"); |
|
940
|
916 |
|
1358
|
917 // This makes a simple `replot' not work after a `clearplot' command |
|
|
918 // has been issued. |
|
940
|
919 |
|
|
920 plot_line_count = 0; |
|
930
|
921 |
|
883
|
922 return retval; |
|
|
923 } |
|
|
924 |
|
884
|
925 DEFALIAS (clg, clearplot); |
|
|
926 |
|
1957
|
927 DEFUN (closeplot, , , |
|
524
|
928 "closeplot (): close the stream to plotter") |
|
|
929 { |
|
2086
|
930 octave_value_list retval; |
|
524
|
931 close_plot_stream (); |
|
|
932 return retval; |
|
|
933 } |
|
|
934 |
|
1957
|
935 DEFUN_TEXT (hold, args, , |
|
524
|
936 "hold [on|off]\n\ |
|
|
937 \n\ |
|
|
938 determine whether the plot window is cleared before the next line is\n\ |
|
|
939 drawn. With no argument, toggle the current state.") |
|
|
940 { |
|
2086
|
941 octave_value_list retval; |
|
524
|
942 |
|
1755
|
943 int argc = args.length () + 1; |
|
|
944 |
|
1968
|
945 string_vector argv = args.make_argv ("hold"); |
|
1755
|
946 |
|
|
947 if (error_state) |
|
|
948 return retval; |
|
524
|
949 |
|
|
950 switch (argc) |
|
|
951 { |
|
|
952 case 1: |
|
|
953 clear_before_plotting = ! clear_before_plotting; |
|
|
954 break; |
|
777
|
955 |
|
524
|
956 case 2: |
|
1755
|
957 if (argv[1] == "on") |
|
1827
|
958 clear_before_plotting = false; |
|
1755
|
959 else if (argv[1] == "off") |
|
1827
|
960 clear_before_plotting = true; |
|
524
|
961 else |
|
|
962 print_usage ("hold"); |
|
|
963 break; |
|
777
|
964 |
|
524
|
965 default: |
|
|
966 print_usage ("hold"); |
|
|
967 break; |
|
|
968 } |
|
|
969 |
|
|
970 return retval; |
|
|
971 } |
|
|
972 |
|
1957
|
973 DEFUN (ishold, , , |
|
735
|
974 "ishold\n\ |
|
|
975 \n\ |
|
|
976 Return 1 if hold is on, otherwise return 0.") |
|
|
977 { |
|
|
978 return (double) (! clear_before_plotting); |
|
|
979 } |
|
|
980 |
|
1957
|
981 DEFUN (purge_tmp_files, , , |
|
524
|
982 "delete temporary data files used for plotting") |
|
|
983 { |
|
2086
|
984 octave_value_list retval; |
|
524
|
985 cleanup_tmp_files (); |
|
|
986 return retval; |
|
|
987 } |
|
|
988 |
|
1957
|
989 DEFUN_TEXT (set, args, , |
|
524
|
990 "set [options]\n\ |
|
|
991 \n\ |
|
|
992 set plotting options") |
|
|
993 { |
|
2086
|
994 octave_value_list retval; |
|
524
|
995 |
|
1755
|
996 int argc = args.length () + 1; |
|
|
997 |
|
1968
|
998 string_vector argv = args.make_argv ("set"); |
|
1755
|
999 |
|
|
1000 if (error_state) |
|
|
1001 return retval; |
|
524
|
1002 |
|
|
1003 ostrstream plot_buf; |
|
|
1004 |
|
|
1005 if (argc > 1) |
|
|
1006 { |
|
|
1007 if (almost_match ("parametric", argv[1], 3)) |
|
1827
|
1008 parametric_plot = true; |
|
524
|
1009 else if (almost_match ("noparametric", argv[1], 5)) |
|
1827
|
1010 parametric_plot = false; |
|
943
|
1011 else if (almost_match ("term", argv[1], 1)) |
|
|
1012 { |
|
|
1013 delete [] gnuplot_terminal_type; |
|
|
1014 ostrstream buf; |
|
|
1015 for (int i = 2; i < argc; i++) |
|
|
1016 buf << argv[i] << " "; |
|
|
1017 buf << "\n" << ends; |
|
|
1018 gnuplot_terminal_type = buf.str (); |
|
|
1019 } |
|
524
|
1020 } |
|
|
1021 |
|
|
1022 for (int i = 0; i < argc; i++) |
|
|
1023 plot_buf << argv[i] << " "; |
|
|
1024 |
|
|
1025 plot_buf << "\n" << ends; |
|
|
1026 |
|
|
1027 char *plot_command = plot_buf.str (); |
|
|
1028 send_to_plot_stream (plot_command); |
|
|
1029 |
|
|
1030 delete [] plot_command; |
|
|
1031 |
|
|
1032 return retval; |
|
|
1033 } |
|
|
1034 |
|
1957
|
1035 DEFUN_TEXT (show, args, , |
|
524
|
1036 "show [options]\n\ |
|
|
1037 \n\ |
|
|
1038 show plotting options") |
|
|
1039 { |
|
2086
|
1040 octave_value_list retval; |
|
524
|
1041 |
|
1755
|
1042 int argc = args.length () + 1; |
|
|
1043 |
|
1968
|
1044 string_vector argv = args.make_argv ("show"); |
|
1755
|
1045 |
|
|
1046 if (error_state) |
|
|
1047 return retval; |
|
524
|
1048 |
|
|
1049 ostrstream plot_buf; |
|
|
1050 |
|
|
1051 for (int i = 0; i < argc; i++) |
|
|
1052 plot_buf << argv[i] << " "; |
|
|
1053 |
|
|
1054 plot_buf << "\n" << ends; |
|
|
1055 |
|
|
1056 char *plot_command = plot_buf.str (); |
|
|
1057 send_to_plot_stream (plot_command); |
|
|
1058 |
|
|
1059 delete [] plot_command; |
|
|
1060 |
|
|
1061 return retval; |
|
|
1062 } |
|
|
1063 |
|
2176
|
1064 static int |
|
|
1065 automatic_replot (void) |
|
|
1066 { |
|
|
1067 Vautomatic_replot = check_preference ("automatic_replot"); |
|
|
1068 |
|
|
1069 return 0; |
|
|
1070 } |
|
|
1071 |
|
|
1072 int |
|
|
1073 gnuplot_binary (void) |
|
|
1074 { |
|
|
1075 int status = 0; |
|
|
1076 |
|
|
1077 string s = builtin_string_variable ("gnuplot_binary"); |
|
|
1078 |
|
|
1079 if (s.empty ()) |
|
|
1080 { |
|
|
1081 gripe_invalid_value_specified ("gnuplot_binary"); |
|
|
1082 status = -1; |
|
|
1083 } |
|
|
1084 else |
|
|
1085 Vgnuplot_binary = s; |
|
|
1086 |
|
|
1087 return status; |
|
|
1088 } |
|
|
1089 |
|
|
1090 static int |
|
2289
|
1091 gnuplot_has_frames (void) |
|
|
1092 { |
|
|
1093 Vgnuplot_has_frames = check_preference ("gnuplot_has_frames"); |
|
|
1094 |
|
|
1095 return 0; |
|
|
1096 } |
|
|
1097 |
|
|
1098 static int |
|
2176
|
1099 gnuplot_has_multiplot (void) |
|
|
1100 { |
|
|
1101 Vgnuplot_has_multiplot = check_preference ("gnuplot_has_multiplot"); |
|
|
1102 |
|
|
1103 return 0; |
|
|
1104 } |
|
|
1105 |
|
|
1106 void |
|
|
1107 symbols_of_pt_plot (void) |
|
|
1108 { |
|
|
1109 DEFVAR (automatic_replot, 0.0, 0, automatic_replot, |
|
|
1110 "if true, auto-insert a replot command when a plot changes"); |
|
|
1111 |
|
|
1112 DEFVAR (gnuplot_binary, "gnuplot", 0, gnuplot_binary, |
|
|
1113 "path to gnuplot binary"); |
|
|
1114 |
|
2289
|
1115 #ifdef GNUPLOT_HAS_FRAMES |
|
|
1116 double with_frames = 1.0; |
|
|
1117 #else |
|
|
1118 double with_frames = 0.0; |
|
|
1119 #endif |
|
|
1120 |
|
|
1121 DEFVAR (gnuplot_has_frames, with_frames, 0, gnuplot_has_frames, |
|
|
1122 "true if gnuplot supports multiple plot windows on X11, false otherwise"); |
|
|
1123 |
|
2176
|
1124 #ifdef GNUPLOT_HAS_MULTIPLOT |
|
|
1125 double with_multiplot = 1.0; |
|
|
1126 #else |
|
|
1127 double with_multiplot = 0.0; |
|
|
1128 #endif |
|
|
1129 |
|
|
1130 DEFVAR (gnuplot_has_multiplot, with_multiplot, 0, gnuplot_has_multiplot, |
|
|
1131 "true if gnuplot supports multiplot, false otherwise"); |
|
|
1132 } |
|
|
1133 |
|
1
|
1134 /* |
|
|
1135 ;;; Local Variables: *** |
|
|
1136 ;;; mode: C++ *** |
|
|
1137 ;;; End: *** |
|
|
1138 */ |
