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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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2442
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40 #ifdef HAVE_SYS_TYPES_H |
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524
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41 #include <sys/types.h> |
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2442
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42 #endif |
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524
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43 #include <unistd.h> |
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44 #endif |
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1
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45 |
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524
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46 #include "SLStack.h" |
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47 #include "procstream.h" |
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48 |
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1802
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49 #include "file-ops.h" |
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1755
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50 #include "str-vec.h" |
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51 |
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1352
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52 #include "defun.h" |
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53 #include "error.h" |
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54 #include "gripes.h" |
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55 #include "help.h" |
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56 #include "load-save.h" |
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1742
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57 #include "mappers.h" |
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58 #include "oct-obj.h" |
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59 #include "pt-cmd.h" |
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60 #include "pt-exp.h" |
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61 #include "pt-plot.h" |
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2124
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62 #include "pt-walk.h" |
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2209
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63 #include "sighandlers.h" |
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1750
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64 #include "sysdep.h" |
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1
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65 #include "utils.h" |
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2371
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66 #include "variables.h" |
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1
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67 |
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2176
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68 // If TRUE, a replot command is issued automatically each time a plot |
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69 // changes in some way. |
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70 static bool Vautomatic_replot; |
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71 |
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72 // The name of the shell command to execute to start gnuplot. |
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73 static string Vgnuplot_binary; |
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74 |
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2289
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75 // TRUE if gnuplot appears to support multiple plot windows with X11. |
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76 static bool Vgnuplot_has_frames; |
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77 |
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2176
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78 // TRUE if gnuplot appears to support multiplot. |
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79 static bool Vgnuplot_has_multiplot; |
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80 |
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1358
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81 // The number of lines we've plotted so far. |
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735
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82 static int plot_line_count = 0; |
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1
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83 |
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84 // Is this a parametric plot? Makes a difference for 3D plotting. |
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1827
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85 static bool parametric_plot = false; |
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1
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86 |
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943
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87 // The gnuplot terminal type. |
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88 static char *gnuplot_terminal_type = 0; |
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89 |
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478
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90 // Should the graph window be cleared before plotting the next line? |
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1827
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91 static bool clear_before_plotting = true; |
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478
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92 |
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524
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93 // List of files to delete when we exit or crash. |
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1750
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94 static SLStack <string> tmp_files; |
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524
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95 |
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96 // Pipe to gnuplot. |
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1449
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97 static oprocstream *plot_stream = 0; |
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524
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98 |
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2211
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99 // ID of the plotter process. |
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100 static pid_t plot_stream_pid = 0; |
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101 |
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866
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102 // Use shortest possible abbreviations to minimize trouble caused by |
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103 // gnuplot's fixed-length command line buffer. |
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104 |
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105 #ifndef GNUPLOT_COMMAND_PLOT |
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106 #define GNUPLOT_COMMAND_PLOT "pl" |
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107 #endif |
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108 |
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109 #ifndef GNUPLOT_COMMAND_REPLOT |
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110 #define GNUPLOT_COMMAND_REPLOT "rep" |
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111 #endif |
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112 |
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113 #ifndef GNUPLOT_COMMAND_SPLOT |
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114 #define GNUPLOT_COMMAND_SPLOT "sp" |
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115 #endif |
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116 |
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117 #ifndef GNUPLOT_COMMAND_USING |
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118 #define GNUPLOT_COMMAND_USING "u" |
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119 #endif |
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120 |
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121 #ifndef GNUPLOT_COMMAND_WITH |
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122 #define GNUPLOT_COMMAND_WITH "w" |
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123 #endif |
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124 |
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125 #ifndef GNUPLOT_COMMAND_TITLE |
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126 #define GNUPLOT_COMMAND_TITLE "t" |
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127 #endif |
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128 |
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597
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129 static void |
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2209
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130 plot_stream_death_handler (pid_t pid, int) |
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131 { |
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132 close_plot_stream (); |
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133 |
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134 warning ("connection to external plotter (pid = %d) lost --", pid); |
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135 warning ("please try your plot command(s) again"); |
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136 } |
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137 |
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138 static void |
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597
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139 open_plot_stream (void) |
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140 { |
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1827
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141 static bool initialized = false; |
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597
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142 |
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1449
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143 if (plot_stream && ! *plot_stream) |
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144 { |
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145 delete plot_stream; |
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146 plot_stream = 0; |
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147 } |
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148 |
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149 if (! plot_stream) |
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597
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150 { |
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1827
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151 initialized = false; |
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943
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152 |
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597
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153 plot_line_count = 0; |
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154 |
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2176
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155 string plot_prog = Vgnuplot_binary; |
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1755
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156 |
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2209
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157 if (plot_prog.empty ()) |
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158 plot_prog = "gnuplot"; |
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159 |
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160 // XXX FIXME XXX -- I'm not sure this is the right thing to do, |
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161 // but without it, C-c at the octave prompt will kill gnuplot... |
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162 |
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2211
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163 #if defined (HAVE_POSIX_SIGNALS) |
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164 sigset_t set, oset; |
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165 sigemptyset (&set); |
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166 sigaddset (&set, SIGCHLD); |
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167 sigaddset (&set, SIGINT); |
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168 sigprocmask (SIG_BLOCK, &set, &oset); |
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169 #endif |
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2209
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170 |
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171 plot_stream = new oprocstream (plot_prog.c_str ()); |
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172 |
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173 if (plot_stream) |
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597
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174 { |
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2209
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175 if (! *plot_stream) |
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1449
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176 { |
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177 delete plot_stream; |
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178 plot_stream = 0; |
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2209
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179 |
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180 error ("plot: unable to open pipe to `%s'", plot_prog.c_str ()); |
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1449
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181 } |
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2209
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182 else |
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597
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183 { |
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2211
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184 plot_stream_pid = plot_stream->pid (); |
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185 octave_child_list::insert (plot_stream_pid, |
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186 plot_stream_death_handler); |
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597
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187 } |
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188 } |
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189 else |
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2209
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190 error ("plot: unable to open pipe to `%s'", plot_prog.c_str ()); |
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2211
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191 |
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192 #if defined (HAVE_POSIX_SIGNALS) |
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193 sigprocmask (SIG_SETMASK, &oset, 0); |
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194 #endif |
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597
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195 } |
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196 |
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1449
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197 if (! error_state && plot_stream && *plot_stream && ! initialized) |
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597
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198 { |
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1827
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199 initialized = true; |
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1449
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200 *plot_stream << "set data style lines\n"; |
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943
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201 |
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202 if (gnuplot_terminal_type) |
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1449
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203 *plot_stream << "set term " << gnuplot_terminal_type << "\n"; |
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597
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204 } |
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205 } |
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206 |
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207 static int |
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208 send_to_plot_stream (const char *cmd) |
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209 { |
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1449
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210 if (! (plot_stream && *plot_stream)) |
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597
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211 { |
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212 open_plot_stream (); |
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213 |
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214 if (error_state) |
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215 return -1; |
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216 } |
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217 |
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930
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218 int replot_len = strlen (GNUPLOT_COMMAND_REPLOT); |
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219 int splot_len = strlen (GNUPLOT_COMMAND_SPLOT); |
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220 int plot_len = strlen (GNUPLOT_COMMAND_PLOT); |
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221 |
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1827
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222 bool is_replot = (strncmp (cmd, GNUPLOT_COMMAND_REPLOT, replot_len) == 0); |
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223 bool is_splot = (strncmp (cmd, GNUPLOT_COMMAND_SPLOT, splot_len) == 0); |
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224 bool is_plot = (strncmp (cmd, GNUPLOT_COMMAND_PLOT, plot_len) == 0); |
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661
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225 |
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226 if (plot_line_count == 0 && is_replot) |
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597
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227 error ("replot: no previous plot"); |
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228 else |
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229 { |
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1449
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230 *plot_stream << cmd; |
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930
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231 |
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661
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232 if (! (is_replot || is_splot || is_plot) |
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233 && plot_line_count > 0 |
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2176
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234 && Vautomatic_replot) |
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1449
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235 *plot_stream << GNUPLOT_COMMAND_REPLOT << "\n"; |
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930
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236 |
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1449
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237 plot_stream->flush (); |
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597
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238 } |
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239 |
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240 return 0; |
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241 } |
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242 |
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581
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243 // Plotting, eh? |
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1
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244 |
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245 tree_plot_command::~tree_plot_command (void) |
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246 { |
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247 delete range; |
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248 delete plot_list; |
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249 } |
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250 |
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578
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251 void |
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252 tree_plot_command::eval (void) |
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1
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253 { |
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143
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254 if (error_state) |
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578
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255 return; |
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143
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256 |
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597
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257 open_plot_stream (); |
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258 |
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1
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259 ostrstream plot_buf; |
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260 |
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261 switch (ndim) |
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262 { |
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476
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263 case 1: |
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478
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264 if (plot_line_count == 0) |
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265 { |
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266 if (plot_list) |
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866
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267 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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268 else |
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269 { |
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270 ::error ("replot: must have something to plot"); |
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578
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271 return; |
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478
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272 } |
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273 } |
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274 else |
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866
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275 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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476
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276 break; |
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777
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277 |
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1
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278 case 2: |
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478
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279 if (clear_before_plotting || plot_line_count == 0) |
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280 { |
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281 plot_line_count = 0; |
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866
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282 plot_buf << GNUPLOT_COMMAND_PLOT; |
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478
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283 } |
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284 else |
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930
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285 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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286 break; |
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777
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287 |
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1
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288 case 3: |
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930
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289 if (clear_before_plotting || plot_line_count == 0) |
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290 { |
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291 plot_line_count = 0; |
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292 plot_buf << GNUPLOT_COMMAND_SPLOT; |
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293 } |
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294 else |
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295 plot_buf << GNUPLOT_COMMAND_REPLOT; |
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1
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296 break; |
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777
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297 |
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1
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298 default: |
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771
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299 gripe_2_or_3_dim_plot (); |
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300 return; |
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1
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301 } |
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302 |
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524
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303 if (range) |
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478
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304 { |
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305 if (plot_line_count == 0) |
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306 range->print (ndim, plot_buf); |
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307 else |
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308 warning ("can't specify new plot ranges with `replot' or while\ |
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309 hold is on"); |
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310 } |
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1
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311 |
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191
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312 if (error_state) |
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578
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313 return; |
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191
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314 |
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591
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315 if (plot_list) |
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1
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316 { |
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591
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317 int status = plot_list->print (ndim, plot_buf); |
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578
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318 |
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771
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319 if (error_state || status < 0) |
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578
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320 return; |
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1
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321 } |
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322 |
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323 plot_buf << "\n" << ends; |
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324 |
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1358
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325 // Just testing... |
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326 // char *message = plot_buf.str (); |
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327 // cout << "[*]" << message << "[*]\n"; |
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1
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328 |
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329 if (parametric_plot && ndim == 2) |
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330 { |
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331 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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332 send_to_plot_stream ("set noparametric\n"); |
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333 char *message = plot_buf.str (); |
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334 send_to_plot_stream (message); |
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335 delete [] message; |
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336 send_to_plot_stream ("set parametric\n"); |
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337 } |
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338 else |
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339 { |
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340 char *message = plot_buf.str (); |
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341 send_to_plot_stream (message); |
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342 delete [] message; |
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343 } |
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344 } |
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345 |
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591
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346 void |
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2124
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347 tree_plot_command::accept (tree_walker& tw) |
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1
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348 { |
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2124
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349 tw.visit_plot_command (*this); |
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1
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350 } |
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351 |
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578
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352 plot_limits::~plot_limits (void) |
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1
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353 { |
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354 delete x_range; |
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355 delete y_range; |
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356 delete z_range; |
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357 } |
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358 |
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359 void |
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578
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360 plot_limits::print (int ndim, ostrstream& plot_buf) |
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1
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361 { |
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362 if (ndim == 2 || ndim == 3) |
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363 { |
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524
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364 if (x_range) |
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1
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365 x_range->print (plot_buf); |
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366 else |
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367 return; |
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368 |
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524
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369 if (y_range) |
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1
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370 y_range->print (plot_buf); |
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371 else |
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372 return; |
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373 } |
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374 |
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524
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375 if (ndim == 3 && z_range) |
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1
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376 z_range->print (plot_buf); |
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377 } |
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378 |
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591
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379 void |
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2124
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380 plot_limits::accept (tree_walker& tw) |
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591
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381 { |
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2124
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382 tw.visit_plot_limits (*this); |
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591
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383 } |
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384 |
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578
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385 plot_range::~plot_range (void) |
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1
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386 { |
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387 delete lower; |
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388 delete upper; |
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389 } |
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390 |
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391 void |
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578
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392 plot_range::print (ostrstream& plot_buf) |
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1
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393 { |
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394 plot_buf << " ["; |
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395 |
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524
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396 if (lower) |
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1
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397 { |
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2086
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398 octave_value lower_val = lower->eval (false); |
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191
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399 if (error_state) |
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400 { |
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240
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401 ::error ("evaluating lower bound of plot range"); |
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191
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402 return; |
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403 } |
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404 else |
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405 { |
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629
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406 double lo = lower_val.double_value (); |
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191
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407 plot_buf << lo; |
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408 } |
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1
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409 } |
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410 |
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411 plot_buf << ":"; |
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412 |
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524
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413 if (upper) |
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1
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414 { |
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2086
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415 octave_value upper_val = upper->eval (false); |
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191
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416 if (error_state) |
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417 { |
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240
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418 ::error ("evaluating upper bound of plot range"); |
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191
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419 return; |
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420 } |
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421 else |
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422 { |
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629
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423 double hi = upper_val.double_value (); |
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191
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424 plot_buf << hi; |
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425 } |
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1
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426 } |
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427 |
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428 plot_buf << "]"; |
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429 } |
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430 |
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591
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431 void |
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2124
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432 plot_range::accept (tree_walker& tw) |
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591
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433 { |
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2124
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434 tw.visit_plot_range (*this); |
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591
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435 } |
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436 |
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578
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437 subplot_using::~subplot_using (void) |
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1
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438 { |
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439 delete scanf_fmt; |
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440 } |
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441 |
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442 int |
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872
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443 subplot_using::eval (int ndim, int n_max) |
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1
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444 { |
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2124
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445 if ((ndim == 2 && qual_count > 4) |
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446 || (ndim == 3 && qual_count > 3)) |
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1
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447 return -1; |
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448 |
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2124
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449 if (qual_count > 0) |
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450 val.resize (qual_count); |
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872
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451 |
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2124
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452 for (int i = 0; i < qual_count; i++) |
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1
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453 { |
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524
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454 if (x[i]) |
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1
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455 { |
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2086
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456 octave_value tmp = x[i]->eval (false); |
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191
|
457 if (error_state) |
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458 { |
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240
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459 ::error ("evaluating plot using command"); |
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191
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460 return -1; |
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461 } |
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462 |
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872
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463 double val_tmp; |
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1
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464 if (tmp.is_defined ()) |
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465 { |
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872
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466 val_tmp = tmp.double_value (); |
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1
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467 |
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872
|
468 if (error_state) |
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|
469 return -1; |
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1
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470 |
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1086
|
471 if (xisnan (val_tmp)) |
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|
472 { |
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473 ::error ("NaN is invalid as a column specifier"); |
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|
474 return -1; |
|
|
475 } |
|
|
476 |
|
872
|
477 int n = NINT (val_tmp); |
|
1086
|
478 |
|
322
|
479 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
480 { |
|
240
|
481 ::error ("using: column %d out of range", n); |
|
1
|
482 return -1; |
|
|
483 } |
|
|
484 else |
|
2305
|
485 val (i) = n; |
|
1
|
486 } |
|
|
487 else |
|
|
488 return -1; |
|
|
489 } |
|
|
490 else |
|
|
491 return -1; |
|
|
492 } |
|
|
493 |
|
524
|
494 if (scanf_fmt) |
|
1
|
495 warning ("ignoring scanf format in plot command"); |
|
|
496 |
|
872
|
497 return 0; |
|
|
498 } |
|
|
499 |
|
|
500 ColumnVector |
|
|
501 subplot_using::values (int ndim, int n_max) |
|
|
502 { |
|
|
503 int status = eval (ndim, n_max); |
|
|
504 |
|
1203
|
505 if (status < 0) |
|
872
|
506 return -1; |
|
|
507 |
|
|
508 return val; |
|
|
509 } |
|
|
510 |
|
|
511 int |
|
|
512 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
513 { |
|
|
514 int status = eval (ndim, n_max); |
|
|
515 |
|
1203
|
516 if (status < 0) |
|
872
|
517 return -1; |
|
|
518 |
|
2124
|
519 for (int i = 0; i < qual_count; i++) |
|
872
|
520 { |
|
|
521 if (i == 0) |
|
|
522 plot_buf << " " << GNUPLOT_COMMAND_USING << " "; |
|
|
523 else |
|
|
524 plot_buf << ":"; |
|
|
525 |
|
2305
|
526 plot_buf << val (i); |
|
872
|
527 } |
|
|
528 |
|
1
|
529 return 0; |
|
|
530 } |
|
|
531 |
|
591
|
532 void |
|
2124
|
533 subplot_using::accept (tree_walker& tw) |
|
1
|
534 { |
|
2124
|
535 tw.visit_subplot_using (*this); |
|
1
|
536 } |
|
|
537 |
|
578
|
538 subplot_style::~subplot_style (void) |
|
1622
|
539 { |
|
2124
|
540 delete sp_linetype; |
|
|
541 delete sp_pointtype; |
|
1
|
542 } |
|
|
543 |
|
|
544 int |
|
578
|
545 subplot_style::print (ostrstream& plot_buf) |
|
1
|
546 { |
|
2124
|
547 if (! sp_style.empty ()) |
|
1
|
548 { |
|
2124
|
549 plot_buf << " " << GNUPLOT_COMMAND_WITH << " " << sp_style; |
|
1
|
550 |
|
2124
|
551 if (sp_linetype) |
|
1
|
552 { |
|
2124
|
553 octave_value tmp = sp_linetype->eval (false); |
|
191
|
554 if (! error_state && tmp.is_defined ()) |
|
1
|
555 { |
|
629
|
556 double val = tmp.double_value (); |
|
1086
|
557 if (xisnan (val)) |
|
|
558 { |
|
|
559 ::error ("NaN is invalid a plotting line style"); |
|
|
560 return -1; |
|
|
561 } |
|
|
562 else |
|
|
563 plot_buf << " " << NINT (val); |
|
1
|
564 } |
|
|
565 else |
|
191
|
566 { |
|
240
|
567 ::error ("evaluating plot style command"); |
|
191
|
568 return -1; |
|
|
569 } |
|
1
|
570 } |
|
|
571 |
|
2124
|
572 if (sp_pointtype) |
|
1
|
573 { |
|
2124
|
574 octave_value tmp = sp_pointtype->eval (false); |
|
191
|
575 if (! error_state && tmp.is_defined ()) |
|
1
|
576 { |
|
629
|
577 double val = tmp.double_value (); |
|
1086
|
578 if (xisnan (val)) |
|
|
579 { |
|
|
580 ::error ("NaN is invalid a plotting point style"); |
|
|
581 return -1; |
|
|
582 } |
|
|
583 else |
|
|
584 plot_buf << " " << NINT (val); |
|
1
|
585 } |
|
|
586 else |
|
191
|
587 { |
|
240
|
588 ::error ("evaluating plot style command"); |
|
191
|
589 return -1; |
|
|
590 } |
|
1
|
591 } |
|
|
592 } |
|
|
593 else |
|
|
594 return -1; |
|
|
595 |
|
|
596 return 0; |
|
|
597 } |
|
|
598 |
|
872
|
599 int |
|
|
600 subplot_style::errorbars (void) |
|
|
601 { |
|
2124
|
602 return (almost_match ("errorbars", sp_style, 1, 0) |
|
|
603 || almost_match ("boxerrorbars", sp_style, 5, 0)); |
|
872
|
604 } |
|
|
605 |
|
591
|
606 void |
|
2124
|
607 subplot_style::accept (tree_walker& tw) |
|
591
|
608 { |
|
2124
|
609 tw.visit_subplot_style (*this); |
|
591
|
610 } |
|
|
611 |
|
878
|
612 subplot::~subplot (void) |
|
|
613 { |
|
2124
|
614 delete sp_plot_data; |
|
|
615 delete sp_using_clause; |
|
|
616 delete sp_title_clause; |
|
|
617 delete sp_style_clause; |
|
878
|
618 } |
|
|
619 |
|
2086
|
620 octave_value |
|
|
621 subplot::extract_plot_data (int ndim, octave_value& data) |
|
872
|
622 { |
|
2086
|
623 octave_value retval; |
|
872
|
624 |
|
2124
|
625 if (sp_using_clause) |
|
872
|
626 { |
|
2124
|
627 ColumnVector val = sp_using_clause->values (ndim); |
|
872
|
628 |
|
2086
|
629 octave_value_list args; |
|
872
|
630 args(1) = val; |
|
2086
|
631 args(0) = octave_value::magic_colon_t; |
|
872
|
632 |
|
2371
|
633 retval = data.index (args); |
|
872
|
634 |
|
|
635 if (error_state) |
|
2086
|
636 return octave_value (); |
|
872
|
637 } |
|
|
638 else |
|
|
639 { |
|
|
640 retval = data; |
|
|
641 } |
|
|
642 |
|
2124
|
643 if (ndim == 2 && sp_style_clause && sp_style_clause->errorbars ()) |
|
872
|
644 { |
|
|
645 int nc = retval.columns (); |
|
|
646 |
|
|
647 if (nc < 3 || nc > 4) |
|
|
648 { |
|
|
649 error ("plots with errorbars require 3 or 4 columns of data"); |
|
|
650 error ("but %d were provided", nc); |
|
2086
|
651 return octave_value (); |
|
872
|
652 } |
|
|
653 } |
|
|
654 |
|
|
655 return retval; |
|
|
656 } |
|
|
657 |
|
591
|
658 int |
|
872
|
659 subplot::handle_plot_data (int ndim, ostrstream& plot_buf) |
|
591
|
660 { |
|
2124
|
661 if (sp_plot_data) |
|
591
|
662 { |
|
2124
|
663 octave_value data = sp_plot_data->eval (false); |
|
872
|
664 |
|
591
|
665 if (! error_state && data.is_defined ()) |
|
|
666 { |
|
1750
|
667 string file; |
|
|
668 |
|
610
|
669 if (data.is_string ()) |
|
591
|
670 { |
|
1358
|
671 // Should really try to look at data file to determine |
|
|
672 // n_max. Can't do much about other arbitrary gnuplot |
|
|
673 // commands though... |
|
872
|
674 |
|
|
675 int n_max = 0; |
|
|
676 |
|
1750
|
677 file = oct_tilde_expand (data.string_value ()); |
|
1728
|
678 |
|
1750
|
679 ifstream ftmp (file.c_str ()); |
|
|
680 |
|
591
|
681 if (ftmp) |
|
|
682 { |
|
|
683 plot_buf << " \"" << file << '"'; |
|
|
684 } |
|
|
685 else |
|
|
686 { |
|
1750
|
687 file = ""; |
|
591
|
688 |
|
1358
|
689 // Opening as a file failed. Let's try passing it |
|
|
690 // along as a plot command. |
|
|
691 |
|
591
|
692 plot_buf << " " << data.string_value (); |
|
872
|
693 } |
|
|
694 |
|
2124
|
695 if (sp_using_clause) |
|
872
|
696 { |
|
2124
|
697 int status = sp_using_clause->print (ndim, n_max, plot_buf); |
|
1750
|
698 |
|
872
|
699 if (status < 0) |
|
|
700 return -1; |
|
591
|
701 } |
|
|
702 } |
|
872
|
703 else |
|
591
|
704 { |
|
1358
|
705 // Eliminate the need for printing a using clause to |
|
|
706 // plot_buf. |
|
872
|
707 |
|
2086
|
708 octave_value tmp_data = extract_plot_data (ndim, data); |
|
872
|
709 |
|
|
710 if (tmp_data.is_defined ()) |
|
|
711 { |
|
|
712 switch (ndim) |
|
|
713 { |
|
|
714 case 2: |
|
|
715 file = save_in_tmp_file (tmp_data, ndim); |
|
|
716 break; |
|
777
|
717 |
|
872
|
718 case 3: |
|
|
719 file = save_in_tmp_file (tmp_data, ndim, |
|
|
720 parametric_plot); |
|
|
721 break; |
|
777
|
722 |
|
872
|
723 default: |
|
|
724 gripe_2_or_3_dim_plot (); |
|
|
725 break; |
|
|
726 } |
|
591
|
727 |
|
1750
|
728 if (file.length () > 0) |
|
872
|
729 { |
|
|
730 mark_for_deletion (file); |
|
|
731 plot_buf << " \"" << file << '"'; |
|
|
732 } |
|
|
733 } |
|
591
|
734 } |
|
|
735 } |
|
|
736 else |
|
|
737 return -1; |
|
|
738 } |
|
|
739 else |
|
|
740 return -1; |
|
|
741 |
|
872
|
742 return 0; |
|
|
743 } |
|
591
|
744 |
|
872
|
745 int |
|
|
746 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
747 { |
|
|
748 int status = handle_plot_data (ndim, plot_buf); |
|
|
749 |
|
|
750 if (status < 0) |
|
|
751 return -1; |
|
591
|
752 |
|
2124
|
753 if (sp_title_clause) |
|
591
|
754 { |
|
2124
|
755 octave_value tmp = sp_title_clause->eval (false); |
|
610
|
756 if (! error_state && tmp.is_string ()) |
|
866
|
757 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
758 << '"' << tmp.string_value () << '"'; |
|
591
|
759 else |
|
|
760 { |
|
|
761 warning ("line title must be a string"); |
|
866
|
762 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
763 << '"' << "line " << plot_line_count << '"'; |
|
591
|
764 } |
|
|
765 } |
|
|
766 else |
|
866
|
767 plot_buf << " " << GNUPLOT_COMMAND_TITLE << " " |
|
|
768 << '"' << "line " << plot_line_count << '"'; |
|
591
|
769 |
|
2124
|
770 if (sp_style_clause) |
|
591
|
771 { |
|
2124
|
772 int status = sp_style_clause->print (plot_buf); |
|
591
|
773 if (status < 0) |
|
|
774 return -1; |
|
|
775 } |
|
|
776 |
|
|
777 return 0; |
|
|
778 } |
|
|
779 |
|
|
780 void |
|
2124
|
781 subplot::accept (tree_walker& tw) |
|
591
|
782 { |
|
2124
|
783 tw.visit_subplot (*this); |
|
591
|
784 } |
|
|
785 |
|
1622
|
786 subplot_list::~subplot_list (void) |
|
|
787 { |
|
|
788 while (! empty ()) |
|
|
789 { |
|
|
790 subplot *t = remove_front (); |
|
|
791 delete t; |
|
|
792 } |
|
|
793 } |
|
|
794 |
|
883
|
795 int |
|
591
|
796 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
797 { |
|
|
798 int status = 0; |
|
|
799 |
|
|
800 for (Pix p = first (); p != 0; next (p)) |
|
|
801 { |
|
|
802 subplot *elt = this->operator () (p); |
|
|
803 |
|
|
804 plot_line_count++; |
|
|
805 |
|
|
806 if (p != first ()) |
|
|
807 plot_buf << ",\\\n "; |
|
|
808 |
|
|
809 status = elt->print (ndim, plot_buf); |
|
|
810 |
|
|
811 if (status < 0) |
|
|
812 break; |
|
|
813 } |
|
|
814 |
|
|
815 return status; |
|
|
816 } |
|
|
817 |
|
|
818 void |
|
2124
|
819 subplot_list::accept (tree_walker& tw) |
|
591
|
820 { |
|
2124
|
821 tw.visit_subplot_list (*this); |
|
591
|
822 } |
|
|
823 |
|
1755
|
824 string |
|
2086
|
825 save_in_tmp_file (octave_value& t, int ndim, bool parametric) |
|
524
|
826 { |
|
1802
|
827 string name = oct_tempnam (); |
|
1755
|
828 |
|
|
829 if (! name.empty ()) |
|
524
|
830 { |
|
1755
|
831 ofstream file (name.c_str ()); |
|
|
832 |
|
524
|
833 if (file) |
|
|
834 { |
|
|
835 switch (ndim) |
|
|
836 { |
|
|
837 case 2: |
|
1755
|
838 save_ascii_data (file, t, name, 1); |
|
524
|
839 break; |
|
777
|
840 |
|
524
|
841 case 3: |
|
607
|
842 save_three_d (file, t, parametric); |
|
524
|
843 break; |
|
777
|
844 |
|
524
|
845 default: |
|
771
|
846 gripe_2_or_3_dim_plot (); |
|
524
|
847 break; |
|
|
848 } |
|
|
849 } |
|
|
850 else |
|
|
851 { |
|
1755
|
852 error ("couldn't open temporary output file `%s'", name.c_str ()); |
|
|
853 name.resize (0); |
|
524
|
854 } |
|
|
855 } |
|
1755
|
856 |
|
524
|
857 return name; |
|
|
858 } |
|
|
859 |
|
|
860 void |
|
1750
|
861 mark_for_deletion (const string& file) |
|
524
|
862 { |
|
1750
|
863 tmp_files.push (file); |
|
524
|
864 } |
|
|
865 |
|
|
866 void |
|
|
867 cleanup_tmp_files (void) |
|
|
868 { |
|
|
869 while (! tmp_files.empty ()) |
|
|
870 { |
|
1750
|
871 string filename = tmp_files.pop (); |
|
|
872 unlink (filename.c_str ()); |
|
524
|
873 } |
|
|
874 } |
|
|
875 |
|
|
876 void |
|
|
877 close_plot_stream (void) |
|
|
878 { |
|
2211
|
879 octave_child_list::remove (plot_stream_pid); |
|
|
880 |
|
1449
|
881 if (plot_stream) |
|
|
882 { |
|
|
883 delete plot_stream; |
|
|
884 plot_stream = 0; |
|
|
885 } |
|
524
|
886 |
|
|
887 plot_line_count = 0; |
|
|
888 } |
|
|
889 |
|
1328
|
890 void |
|
1755
|
891 do_external_plotter_cd (const string& newdir) |
|
1328
|
892 { |
|
1449
|
893 if (plot_stream && *plot_stream) |
|
1328
|
894 { |
|
|
895 ostrstream plot_buf; |
|
|
896 plot_buf << "cd \"" << newdir << "\"\n" << ends; |
|
|
897 char *message = plot_buf.str (); |
|
|
898 send_to_plot_stream (message); |
|
|
899 delete [] message; |
|
|
900 } |
|
|
901 } |
|
|
902 |
|
1957
|
903 DEFUN (clearplot, , , |
|
883
|
904 "clearplot (): clear the plot window") |
|
|
905 { |
|
2086
|
906 octave_value_list retval; |
|
883
|
907 send_to_plot_stream ("clear\n"); |
|
930
|
908 |
|
1358
|
909 // XXX FIXME XXX -- instead of just clearing these things, it would |
|
|
910 // be nice if we could reset things to a user-specified default |
|
|
911 // state. |
|
930
|
912 |
|
|
913 send_to_plot_stream ("set title\n"); |
|
|
914 send_to_plot_stream ("set xlabel\n"); |
|
|
915 send_to_plot_stream ("set ylabel\n"); |
|
940
|
916 send_to_plot_stream ("set nogrid\n"); |
|
1000
|
917 send_to_plot_stream ("set nolabel\n"); |
|
940
|
918 |
|
1358
|
919 // This makes a simple `replot' not work after a `clearplot' command |
|
|
920 // has been issued. |
|
940
|
921 |
|
|
922 plot_line_count = 0; |
|
930
|
923 |
|
883
|
924 return retval; |
|
|
925 } |
|
|
926 |
|
884
|
927 DEFALIAS (clg, clearplot); |
|
|
928 |
|
1957
|
929 DEFUN (closeplot, , , |
|
524
|
930 "closeplot (): close the stream to plotter") |
|
|
931 { |
|
2086
|
932 octave_value_list retval; |
|
524
|
933 close_plot_stream (); |
|
|
934 return retval; |
|
|
935 } |
|
|
936 |
|
1957
|
937 DEFUN_TEXT (hold, args, , |
|
524
|
938 "hold [on|off]\n\ |
|
|
939 \n\ |
|
|
940 determine whether the plot window is cleared before the next line is\n\ |
|
|
941 drawn. With no argument, toggle the current state.") |
|
|
942 { |
|
2086
|
943 octave_value_list retval; |
|
524
|
944 |
|
1755
|
945 int argc = args.length () + 1; |
|
|
946 |
|
1968
|
947 string_vector argv = args.make_argv ("hold"); |
|
1755
|
948 |
|
|
949 if (error_state) |
|
|
950 return retval; |
|
524
|
951 |
|
|
952 switch (argc) |
|
|
953 { |
|
|
954 case 1: |
|
|
955 clear_before_plotting = ! clear_before_plotting; |
|
|
956 break; |
|
777
|
957 |
|
524
|
958 case 2: |
|
1755
|
959 if (argv[1] == "on") |
|
1827
|
960 clear_before_plotting = false; |
|
1755
|
961 else if (argv[1] == "off") |
|
1827
|
962 clear_before_plotting = true; |
|
524
|
963 else |
|
|
964 print_usage ("hold"); |
|
|
965 break; |
|
777
|
966 |
|
524
|
967 default: |
|
|
968 print_usage ("hold"); |
|
|
969 break; |
|
|
970 } |
|
|
971 |
|
|
972 return retval; |
|
|
973 } |
|
|
974 |
|
1957
|
975 DEFUN (ishold, , , |
|
735
|
976 "ishold\n\ |
|
|
977 \n\ |
|
|
978 Return 1 if hold is on, otherwise return 0.") |
|
|
979 { |
|
|
980 return (double) (! clear_before_plotting); |
|
|
981 } |
|
|
982 |
|
1957
|
983 DEFUN (purge_tmp_files, , , |
|
524
|
984 "delete temporary data files used for plotting") |
|
|
985 { |
|
2086
|
986 octave_value_list retval; |
|
524
|
987 cleanup_tmp_files (); |
|
|
988 return retval; |
|
|
989 } |
|
|
990 |
|
1957
|
991 DEFUN_TEXT (set, args, , |
|
524
|
992 "set [options]\n\ |
|
|
993 \n\ |
|
|
994 set plotting options") |
|
|
995 { |
|
2086
|
996 octave_value_list retval; |
|
524
|
997 |
|
1755
|
998 int argc = args.length () + 1; |
|
|
999 |
|
1968
|
1000 string_vector argv = args.make_argv ("set"); |
|
1755
|
1001 |
|
|
1002 if (error_state) |
|
|
1003 return retval; |
|
524
|
1004 |
|
|
1005 ostrstream plot_buf; |
|
|
1006 |
|
|
1007 if (argc > 1) |
|
|
1008 { |
|
|
1009 if (almost_match ("parametric", argv[1], 3)) |
|
1827
|
1010 parametric_plot = true; |
|
524
|
1011 else if (almost_match ("noparametric", argv[1], 5)) |
|
1827
|
1012 parametric_plot = false; |
|
943
|
1013 else if (almost_match ("term", argv[1], 1)) |
|
|
1014 { |
|
|
1015 delete [] gnuplot_terminal_type; |
|
|
1016 ostrstream buf; |
|
|
1017 for (int i = 2; i < argc; i++) |
|
|
1018 buf << argv[i] << " "; |
|
|
1019 buf << "\n" << ends; |
|
|
1020 gnuplot_terminal_type = buf.str (); |
|
|
1021 } |
|
524
|
1022 } |
|
|
1023 |
|
|
1024 for (int i = 0; i < argc; i++) |
|
|
1025 plot_buf << argv[i] << " "; |
|
|
1026 |
|
|
1027 plot_buf << "\n" << ends; |
|
|
1028 |
|
|
1029 char *plot_command = plot_buf.str (); |
|
|
1030 send_to_plot_stream (plot_command); |
|
|
1031 |
|
|
1032 delete [] plot_command; |
|
|
1033 |
|
|
1034 return retval; |
|
|
1035 } |
|
|
1036 |
|
1957
|
1037 DEFUN_TEXT (show, args, , |
|
524
|
1038 "show [options]\n\ |
|
|
1039 \n\ |
|
|
1040 show plotting options") |
|
|
1041 { |
|
2086
|
1042 octave_value_list retval; |
|
524
|
1043 |
|
1755
|
1044 int argc = args.length () + 1; |
|
|
1045 |
|
1968
|
1046 string_vector argv = args.make_argv ("show"); |
|
1755
|
1047 |
|
|
1048 if (error_state) |
|
|
1049 return retval; |
|
524
|
1050 |
|
|
1051 ostrstream plot_buf; |
|
|
1052 |
|
|
1053 for (int i = 0; i < argc; i++) |
|
|
1054 plot_buf << argv[i] << " "; |
|
|
1055 |
|
|
1056 plot_buf << "\n" << ends; |
|
|
1057 |
|
|
1058 char *plot_command = plot_buf.str (); |
|
|
1059 send_to_plot_stream (plot_command); |
|
|
1060 |
|
|
1061 delete [] plot_command; |
|
|
1062 |
|
|
1063 return retval; |
|
|
1064 } |
|
|
1065 |
|
2176
|
1066 static int |
|
|
1067 automatic_replot (void) |
|
|
1068 { |
|
|
1069 Vautomatic_replot = check_preference ("automatic_replot"); |
|
|
1070 |
|
|
1071 return 0; |
|
|
1072 } |
|
|
1073 |
|
|
1074 int |
|
|
1075 gnuplot_binary (void) |
|
|
1076 { |
|
|
1077 int status = 0; |
|
|
1078 |
|
|
1079 string s = builtin_string_variable ("gnuplot_binary"); |
|
|
1080 |
|
|
1081 if (s.empty ()) |
|
|
1082 { |
|
|
1083 gripe_invalid_value_specified ("gnuplot_binary"); |
|
|
1084 status = -1; |
|
|
1085 } |
|
|
1086 else |
|
|
1087 Vgnuplot_binary = s; |
|
|
1088 |
|
|
1089 return status; |
|
|
1090 } |
|
|
1091 |
|
|
1092 static int |
|
2289
|
1093 gnuplot_has_frames (void) |
|
|
1094 { |
|
|
1095 Vgnuplot_has_frames = check_preference ("gnuplot_has_frames"); |
|
|
1096 |
|
|
1097 return 0; |
|
|
1098 } |
|
|
1099 |
|
|
1100 static int |
|
2176
|
1101 gnuplot_has_multiplot (void) |
|
|
1102 { |
|
|
1103 Vgnuplot_has_multiplot = check_preference ("gnuplot_has_multiplot"); |
|
|
1104 |
|
|
1105 return 0; |
|
|
1106 } |
|
|
1107 |
|
|
1108 void |
|
|
1109 symbols_of_pt_plot (void) |
|
|
1110 { |
|
|
1111 DEFVAR (automatic_replot, 0.0, 0, automatic_replot, |
|
|
1112 "if true, auto-insert a replot command when a plot changes"); |
|
|
1113 |
|
|
1114 DEFVAR (gnuplot_binary, "gnuplot", 0, gnuplot_binary, |
|
|
1115 "path to gnuplot binary"); |
|
|
1116 |
|
2289
|
1117 #ifdef GNUPLOT_HAS_FRAMES |
|
|
1118 double with_frames = 1.0; |
|
|
1119 #else |
|
|
1120 double with_frames = 0.0; |
|
|
1121 #endif |
|
|
1122 |
|
|
1123 DEFVAR (gnuplot_has_frames, with_frames, 0, gnuplot_has_frames, |
|
|
1124 "true if gnuplot supports multiple plot windows on X11, false otherwise"); |
|
|
1125 |
|
2176
|
1126 #ifdef GNUPLOT_HAS_MULTIPLOT |
|
|
1127 double with_multiplot = 1.0; |
|
|
1128 #else |
|
|
1129 double with_multiplot = 0.0; |
|
|
1130 #endif |
|
|
1131 |
|
|
1132 DEFVAR (gnuplot_has_multiplot, with_multiplot, 0, gnuplot_has_multiplot, |
|
|
1133 "true if gnuplot supports multiplot, false otherwise"); |
|
|
1134 } |
|
|
1135 |
|
1
|
1136 /* |
|
|
1137 ;;; Local Variables: *** |
|
|
1138 ;;; mode: C++ *** |
|
|
1139 ;;; End: *** |
|
|
1140 */ |
