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1 // tree-plot.cc -*- C++ -*- |
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2 /* |
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3 |
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322
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4 Copyright (C) 1992, 1993, 1994 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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240
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24 #ifdef HAVE_CONFIG_H |
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25 #include "config.h" |
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26 #endif |
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27 |
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524
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28 #if defined (__GNUG__) |
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29 #pragma implementation |
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30 #endif |
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31 |
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32 #include <sys/types.h> |
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33 #ifdef HAVE_UNISTD_H |
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34 #include <unistd.h> |
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35 #endif |
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36 #include <iostream.h> |
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86
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37 #include <fstream.h> |
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38 #include <strstream.h> |
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39 |
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524
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40 #include "SLStack.h" |
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41 #include "procstream.h" |
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42 |
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43 #include "user-prefs.h" |
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584
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44 #include "tree-base.h" |
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45 #include "tree-expr.h" |
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46 #include "tree-cmd.h" |
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524
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47 #include "tree-const.h" |
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48 #include "tree-plot.h" |
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543
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49 #include "help.h" |
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1
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50 #include "error.h" |
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51 #include "utils.h" |
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524
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52 #include "defun.h" |
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53 |
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87
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54 extern "C" |
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55 { |
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581
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56 #include <readline/tilde.h> |
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87
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57 } |
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58 |
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1
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59 // The number of lines we\'ve plotted so far. |
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591
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60 int plot_line_count = 0; |
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61 |
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62 // Is this a parametric plot? Makes a difference for 3D plotting. |
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63 int parametric_plot = 0; |
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64 |
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478
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65 // Should the graph window be cleared before plotting the next line? |
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66 int clear_before_plotting = 1; |
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67 |
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524
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68 // List of files to delete when we exit or crash. |
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69 static SLStack <char *> tmp_files; |
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70 |
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71 // Pipe to gnuplot. |
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72 static oprocstream plot_stream; |
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73 |
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581
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74 // Plotting, eh? |
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75 |
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581
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76 tree_plot_command::tree_plot_command (void) : tree_command () |
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77 { |
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524
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78 range = 0; |
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79 plot_list = 0; |
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80 ndim = 0; |
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81 } |
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82 |
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578
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83 tree_plot_command::tree_plot_command (subplot_list *plt, int nd) |
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581
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84 : tree_command () |
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1
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85 { |
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524
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86 range = 0; |
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87 plot_list = plt; |
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88 ndim = nd; |
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89 } |
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90 |
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578
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91 tree_plot_command::tree_plot_command (subplot_list *plt, |
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92 plot_limits *rng, int nd) |
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581
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93 : tree_command () |
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1
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94 { |
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95 range = rng; |
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96 plot_list = plt; |
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97 ndim = nd; |
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98 } |
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99 |
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100 tree_plot_command::~tree_plot_command (void) |
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101 { |
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102 delete range; |
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103 delete plot_list; |
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104 } |
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105 |
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578
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106 void |
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107 tree_plot_command::eval (void) |
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108 { |
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143
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109 if (error_state) |
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110 return; |
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143
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111 |
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1
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112 ostrstream plot_buf; |
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113 |
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114 switch (ndim) |
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115 { |
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476
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116 case 1: |
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478
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117 if (plot_line_count == 0) |
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118 { |
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119 if (plot_list) |
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120 plot_buf << "plot"; |
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121 else |
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122 { |
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123 ::error ("replot: must have something to plot"); |
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578
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124 return; |
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478
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125 } |
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126 } |
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127 else |
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128 plot_buf << "replot"; |
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476
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129 break; |
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1
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130 case 2: |
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478
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131 if (clear_before_plotting || plot_line_count == 0) |
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132 { |
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133 plot_line_count = 0; |
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134 plot_buf << "plot"; |
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135 } |
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136 else |
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137 plot_buf << "replot"; |
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1
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138 break; |
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139 case 3: |
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478
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140 { |
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141 plot_line_count = 0; |
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142 plot_buf << "splot"; |
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143 } |
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1
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144 break; |
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145 default: |
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146 panic_impossible (); |
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147 break; |
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148 } |
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149 |
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524
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150 if (range) |
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478
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151 { |
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152 if (plot_line_count == 0) |
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153 range->print (ndim, plot_buf); |
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154 else |
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155 warning ("can't specify new plot ranges with `replot' or while\ |
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156 hold is on"); |
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157 } |
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1
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158 |
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191
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159 if (error_state) |
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160 return; |
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191
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161 |
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591
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162 if (plot_list) |
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1
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163 { |
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591
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164 int status = plot_list->print (ndim, plot_buf); |
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578
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165 |
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166 if (status < 0) |
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578
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167 return; |
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1
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168 } |
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169 |
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170 plot_buf << "\n" << ends; |
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171 |
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172 // Just testing... |
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173 // char *message = plot_buf.str (); |
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174 // cout << "[*]" << message << "[*]\n"; |
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175 |
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176 if (parametric_plot && ndim == 2) |
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177 { |
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178 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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179 send_to_plot_stream ("set noparametric\n"); |
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180 char *message = plot_buf.str (); |
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181 send_to_plot_stream (message); |
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182 delete [] message; |
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183 send_to_plot_stream ("set parametric\n"); |
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184 } |
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185 else |
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186 { |
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187 char *message = plot_buf.str (); |
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188 send_to_plot_stream (message); |
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189 delete [] message; |
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190 } |
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191 } |
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192 |
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591
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193 void |
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194 tree_plot_command::print_code (ostream& os) |
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195 { |
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591
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196 print_code_indent (os); |
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197 |
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591
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198 switch (ndim) |
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1
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199 { |
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591
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200 case 1: |
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201 os << "replot"; |
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202 break; |
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203 case 2: |
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204 os << "gplot"; |
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205 break; |
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206 case 3: |
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207 os << "gsplot"; |
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208 break; |
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209 default: |
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210 panic_impossible (); |
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211 break; |
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1
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212 } |
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213 |
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591
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214 if (range) |
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215 range->print_code (os); |
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216 |
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591
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217 if (plot_list) |
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218 plot_list->print_code (os); |
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1
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219 } |
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220 |
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578
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221 plot_limits::plot_limits (void) |
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222 { |
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524
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223 x_range = 0; |
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224 y_range = 0; |
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225 z_range = 0; |
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226 } |
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227 |
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578
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228 plot_limits::plot_limits (plot_range *xlim) |
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1
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229 { |
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230 x_range = xlim; |
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524
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231 y_range = 0; |
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232 z_range = 0; |
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1
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233 } |
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234 |
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578
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235 plot_limits::plot_limits (plot_range *xlim, |
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236 plot_range *ylim) |
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237 { |
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238 x_range = xlim; |
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239 y_range = ylim; |
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524
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240 z_range = 0; |
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1
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241 } |
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242 |
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578
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243 plot_limits::plot_limits (plot_range *xlim, |
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244 plot_range *ylim, |
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245 plot_range *zlim) |
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1
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246 { |
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247 x_range = xlim; |
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248 y_range = ylim; |
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249 z_range = zlim; |
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250 } |
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251 |
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578
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252 plot_limits::~plot_limits (void) |
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253 { |
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254 delete x_range; |
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255 delete y_range; |
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256 delete z_range; |
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257 } |
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258 |
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259 void |
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578
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260 plot_limits::print (int ndim, ostrstream& plot_buf) |
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261 { |
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262 if (ndim == 2 || ndim == 3) |
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263 { |
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524
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264 if (x_range) |
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265 x_range->print (plot_buf); |
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266 else |
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267 return; |
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268 |
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524
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269 if (y_range) |
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270 y_range->print (plot_buf); |
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271 else |
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272 return; |
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273 } |
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274 |
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524
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275 if (ndim == 3 && z_range) |
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276 z_range->print (plot_buf); |
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277 } |
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278 |
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591
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279 void |
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280 plot_limits::print_code (ostream& os) |
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281 { |
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282 if (x_range) |
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283 x_range->print_code (os); |
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284 |
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285 if (y_range) |
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286 y_range->print_code (os); |
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287 |
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288 if (z_range) |
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289 z_range->print_code (os); |
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290 } |
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291 |
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578
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292 plot_range::plot_range (void) |
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293 { |
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524
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294 lower = 0; |
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295 upper = 0; |
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1
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296 } |
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297 |
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578
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298 plot_range::plot_range (tree_expression *l, tree_expression *u) |
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1
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299 { |
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300 lower = l; |
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301 upper = u; |
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302 } |
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303 |
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578
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304 plot_range::~plot_range (void) |
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305 { |
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306 delete lower; |
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307 delete upper; |
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308 } |
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309 |
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310 void |
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578
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311 plot_range::print (ostrstream& plot_buf) |
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1
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312 { |
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313 plot_buf << " ["; |
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314 |
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524
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315 if (lower) |
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1
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316 { |
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317 tree_constant lower_val = lower->eval (0); |
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191
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318 if (error_state) |
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319 { |
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240
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320 ::error ("evaluating lower bound of plot range"); |
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191
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321 return; |
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322 } |
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323 else |
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324 { |
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325 double lo = lower_val.to_scalar (); |
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326 plot_buf << lo; |
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327 } |
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1
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328 } |
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329 |
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330 plot_buf << ":"; |
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331 |
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524
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332 if (upper) |
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1
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333 { |
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334 tree_constant upper_val = upper->eval (0); |
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191
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335 if (error_state) |
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336 { |
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240
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337 ::error ("evaluating upper bound of plot range"); |
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191
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338 return; |
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339 } |
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340 else |
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341 { |
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342 double hi = upper_val.to_scalar (); |
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343 plot_buf << hi; |
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344 } |
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1
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345 } |
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346 |
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347 plot_buf << "]"; |
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348 } |
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349 |
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591
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350 void |
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351 plot_range::print_code (ostream& os) |
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352 { |
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353 os << " ["; |
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354 |
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355 if (lower) |
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356 lower->print_code (os); |
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357 |
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358 os << ":"; |
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359 |
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360 if (upper) |
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361 upper->print_code (os); |
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362 |
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363 os << "]"; |
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364 } |
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365 |
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578
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366 subplot_using::subplot_using (void) |
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1
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367 { |
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368 qualifier_count = 0; |
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524
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369 x[0] = 0; |
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370 x[1] = 0; |
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371 x[2] = 0; |
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372 x[3] = 0; |
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373 scanf_fmt = 0; |
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1
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374 } |
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375 |
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578
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376 subplot_using::subplot_using (tree_expression *fmt) |
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1
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377 { |
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378 qualifier_count = 0; |
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524
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379 x[0] = 0; |
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380 x[1] = 0; |
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381 x[2] = 0; |
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382 x[3] = 0; |
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1
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383 scanf_fmt = fmt; |
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384 } |
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385 |
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578
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386 subplot_using::~subplot_using (void) |
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1
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387 { |
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388 delete scanf_fmt; |
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389 } |
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390 |
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578
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391 subplot_using * |
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392 subplot_using::set_format (tree_expression *fmt) |
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1
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393 { |
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394 scanf_fmt = fmt; |
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395 return this; |
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396 } |
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397 |
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578
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398 subplot_using * |
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399 subplot_using::add_qualifier (tree_expression *t) |
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1
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400 { |
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401 if (qualifier_count < 4) |
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402 x[qualifier_count] = t; |
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403 |
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404 qualifier_count++; |
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405 |
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406 return this; |
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407 } |
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408 |
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409 int |
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578
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410 subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
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1
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411 { |
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412 if ((ndim == 2 && qualifier_count > 4) |
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413 || (ndim == 3 && qualifier_count > 3)) |
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414 return -1; |
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415 |
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416 for (int i = 0; i < qualifier_count; i++) |
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417 { |
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524
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418 if (x[i]) |
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1
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419 { |
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420 tree_constant tmp = x[i]->eval (0); |
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191
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421 if (error_state) |
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422 { |
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240
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423 ::error ("evaluating plot using command"); |
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191
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424 return -1; |
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425 } |
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426 |
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1
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427 double val; |
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428 if (tmp.is_defined ()) |
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429 { |
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430 val = tmp.to_scalar (); |
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431 if (i == 0) |
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432 plot_buf << " using "; |
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433 else |
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434 plot_buf << ":"; |
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435 |
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436 int n = NINT (val); |
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437 |
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322
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438 if (n < 1 || n_max > 0 && n > n_max) |
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1
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439 { |
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240
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440 ::error ("using: column %d out of range", n); |
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1
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441 return -1; |
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442 } |
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443 else |
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444 plot_buf << n; |
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445 } |
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446 else |
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447 return -1; |
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448 } |
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449 else |
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450 return -1; |
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451 } |
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452 |
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524
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453 if (scanf_fmt) |
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1
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454 warning ("ignoring scanf format in plot command"); |
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455 |
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456 return 0; |
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457 } |
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458 |
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591
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459 void |
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460 subplot_using::print_code (ostream& os) |
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461 { |
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462 os << " using "; |
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463 for (int i = 0; i < qualifier_count; i++) |
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464 { |
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465 if (i > 0) |
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466 os << ":"; |
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467 |
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468 if (x[i]) |
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469 x[i]->print_code (os); |
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470 } |
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471 } |
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472 |
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578
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473 subplot_style::subplot_style (void) |
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1
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474 { |
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524
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475 style = 0; |
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476 linetype = 0; |
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477 pointtype = 0; |
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1
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478 } |
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479 |
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578
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480 subplot_style::subplot_style (char *s) |
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1
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481 { |
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482 style = strsave (s); |
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524
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483 linetype = 0; |
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484 pointtype = 0; |
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1
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485 } |
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486 |
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578
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487 subplot_style::subplot_style (char *s, tree_expression *lt) |
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1
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488 { |
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489 style = strsave (s); |
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490 linetype = lt; |
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524
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491 pointtype = 0; |
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1
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492 } |
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493 |
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578
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494 subplot_style::subplot_style (char *s, tree_expression *lt, |
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491
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495 tree_expression *pt) |
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1
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496 { |
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497 style = strsave (s); |
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498 linetype = lt; |
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499 pointtype = pt; |
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500 } |
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501 |
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578
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502 subplot_style::~subplot_style (void) |
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1
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503 { |
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504 delete [] style; |
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505 delete linetype; |
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506 delete pointtype; |
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507 } |
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508 |
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509 int |
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578
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510 subplot_style::print (ostrstream& plot_buf) |
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1
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511 { |
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524
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512 if (style) |
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1
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513 { |
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514 plot_buf << " with " << style; |
|
|
515 |
|
524
|
516 if (linetype) |
|
1
|
517 { |
|
|
518 tree_constant tmp = linetype->eval (0); |
|
191
|
519 if (! error_state && tmp.is_defined ()) |
|
1
|
520 { |
|
|
521 double val = tmp.to_scalar (); |
|
|
522 plot_buf << " " << NINT (val); |
|
|
523 } |
|
|
524 else |
|
191
|
525 { |
|
240
|
526 ::error ("evaluating plot style command"); |
|
191
|
527 return -1; |
|
|
528 } |
|
1
|
529 } |
|
|
530 |
|
524
|
531 if (pointtype) |
|
1
|
532 { |
|
|
533 tree_constant tmp = pointtype->eval (0); |
|
191
|
534 if (! error_state && tmp.is_defined ()) |
|
1
|
535 { |
|
|
536 double val = tmp.to_scalar (); |
|
|
537 plot_buf << " " << NINT (val); |
|
|
538 } |
|
|
539 else |
|
191
|
540 { |
|
240
|
541 ::error ("evaluating plot style command"); |
|
191
|
542 return -1; |
|
|
543 } |
|
1
|
544 } |
|
|
545 } |
|
|
546 else |
|
|
547 return -1; |
|
|
548 |
|
|
549 return 0; |
|
|
550 } |
|
|
551 |
|
591
|
552 void |
|
|
553 subplot_style::print_code (ostream& os) |
|
|
554 { |
|
|
555 os << " with " << style; |
|
|
556 |
|
|
557 if (linetype) |
|
|
558 { |
|
|
559 os << " "; |
|
|
560 linetype->print_code (os); |
|
|
561 } |
|
|
562 |
|
|
563 if (pointtype) |
|
|
564 { |
|
|
565 os << " "; |
|
|
566 pointtype->print_code (os); |
|
|
567 } |
|
|
568 } |
|
|
569 |
|
|
570 int |
|
|
571 subplot::print (int ndim, ostrstream& plot_buf) |
|
|
572 { |
|
|
573 int nc = 0; |
|
|
574 if (plot_data) |
|
|
575 { |
|
|
576 tree_constant data = plot_data->eval (0); |
|
|
577 if (! error_state && data.is_defined ()) |
|
|
578 { |
|
|
579 char *file = 0; |
|
|
580 if (data.is_string_type ()) |
|
|
581 { |
|
|
582 file = tilde_expand (data.string_value ()); |
|
|
583 ifstream ftmp (file); |
|
|
584 if (ftmp) |
|
|
585 { |
|
|
586 plot_buf << " \"" << file << '"'; |
|
|
587 free (file); |
|
|
588 goto have_existing_file_or_command; |
|
|
589 } |
|
|
590 else |
|
|
591 { |
|
|
592 free (file); |
|
|
593 file = 0; |
|
|
594 |
|
|
595 // Opening as a file failed. Let's try passing it along as a plot |
|
|
596 // command. |
|
|
597 plot_buf << " " << data.string_value (); |
|
|
598 goto have_existing_file_or_command; |
|
|
599 } |
|
|
600 } |
|
|
601 |
|
|
602 nc = data.columns (); |
|
|
603 switch (ndim) |
|
|
604 { |
|
|
605 case 2: |
|
|
606 file = save_in_tmp_file (data, ndim); |
|
|
607 break; |
|
|
608 case 3: |
|
|
609 file = save_in_tmp_file (data, ndim, parametric_plot); |
|
|
610 break; |
|
|
611 default: |
|
|
612 panic_impossible (); |
|
|
613 break; |
|
|
614 } |
|
|
615 |
|
|
616 if (file) |
|
|
617 { |
|
|
618 mark_for_deletion (file); |
|
|
619 plot_buf << " \"" << file << '"'; |
|
|
620 } |
|
|
621 } |
|
|
622 else |
|
|
623 return -1; |
|
|
624 } |
|
|
625 else |
|
|
626 return -1; |
|
|
627 |
|
|
628 have_existing_file_or_command: |
|
|
629 |
|
|
630 if (using) |
|
|
631 { |
|
|
632 int status = using->print (ndim, nc, plot_buf); |
|
|
633 if (status < 0) |
|
|
634 return -1; |
|
|
635 } |
|
|
636 |
|
|
637 if (title) |
|
|
638 { |
|
|
639 tree_constant tmp = title->eval (0); |
|
|
640 if (! error_state && tmp.is_string_type ()) |
|
|
641 plot_buf << " title " << '"' << tmp.string_value () << '"'; |
|
|
642 else |
|
|
643 { |
|
|
644 warning ("line title must be a string"); |
|
|
645 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
|
|
646 } |
|
|
647 } |
|
|
648 else |
|
|
649 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
|
|
650 |
|
|
651 if (style) |
|
|
652 { |
|
|
653 int status = style->print (plot_buf); |
|
|
654 if (status < 0) |
|
|
655 return -1; |
|
|
656 } |
|
|
657 |
|
|
658 return 0; |
|
|
659 } |
|
|
660 |
|
|
661 void |
|
|
662 subplot::print_code (ostream& os) |
|
|
663 { |
|
|
664 if (plot_data) |
|
592
|
665 { |
|
|
666 os << " "; |
|
|
667 plot_data->print_code (os); |
|
|
668 } |
|
591
|
669 |
|
|
670 if (using) |
|
|
671 using->print_code (os); |
|
|
672 |
|
|
673 if (title) |
|
|
674 title->print_code (os); |
|
|
675 |
|
|
676 if (style) |
|
|
677 style->print_code (os); |
|
|
678 } |
|
|
679 |
|
|
680 int |
|
|
681 subplot_list::print (int ndim, ostrstream& plot_buf) |
|
|
682 { |
|
|
683 int status = 0; |
|
|
684 |
|
|
685 for (Pix p = first (); p != 0; next (p)) |
|
|
686 { |
|
|
687 subplot *elt = this->operator () (p); |
|
|
688 |
|
|
689 plot_line_count++; |
|
|
690 |
|
|
691 if (p != first ()) |
|
|
692 plot_buf << ",\\\n "; |
|
|
693 |
|
|
694 status = elt->print (ndim, plot_buf); |
|
|
695 |
|
|
696 if (status < 0) |
|
|
697 break; |
|
|
698 } |
|
|
699 |
|
|
700 return status; |
|
|
701 } |
|
|
702 |
|
|
703 void |
|
|
704 subplot_list::print_code (ostream& os) |
|
|
705 { |
|
|
706 Pix p = first (); |
|
|
707 |
|
|
708 while (p) |
|
|
709 { |
|
|
710 subplot *elt = this->operator () (p); |
|
|
711 |
|
|
712 next (p); |
|
|
713 |
|
|
714 if (elt) |
|
|
715 { |
|
|
716 elt->print_code (os); |
|
|
717 |
|
|
718 if (p) |
|
592
|
719 os << ","; |
|
591
|
720 } |
|
|
721 } |
|
|
722 } |
|
|
723 |
|
524
|
724 char * |
|
|
725 save_in_tmp_file (tree_constant& t, int ndim, int parametric) |
|
|
726 { |
|
|
727 char *name = strsave (tmpnam (0)); |
|
|
728 if (name) |
|
|
729 { |
|
|
730 ofstream file (name); |
|
|
731 if (file) |
|
|
732 { |
|
|
733 switch (ndim) |
|
|
734 { |
|
|
735 case 2: |
|
|
736 t.save (file); |
|
|
737 break; |
|
|
738 case 3: |
|
|
739 t.save_three_d (file, parametric); |
|
|
740 break; |
|
|
741 default: |
|
|
742 panic_impossible (); |
|
|
743 break; |
|
|
744 } |
|
|
745 } |
|
|
746 else |
|
|
747 { |
|
|
748 error ("couldn't open temporary output file `%s'", name); |
|
|
749 delete [] name; |
|
|
750 name = 0; |
|
|
751 } |
|
|
752 } |
|
|
753 return name; |
|
|
754 } |
|
|
755 |
|
|
756 void |
|
|
757 mark_for_deletion (const char *filename) |
|
|
758 { |
|
|
759 char *tmp = strsave (filename); |
|
|
760 tmp_files.push (tmp); |
|
|
761 } |
|
|
762 |
|
|
763 void |
|
|
764 cleanup_tmp_files (void) |
|
|
765 { |
|
|
766 while (! tmp_files.empty ()) |
|
|
767 { |
|
|
768 char *filename = tmp_files.pop (); |
|
|
769 unlink (filename); |
|
|
770 delete [] filename; |
|
|
771 } |
|
|
772 } |
|
|
773 |
|
|
774 int |
|
|
775 send_to_plot_stream (const char *cmd) |
|
|
776 { |
|
|
777 // From sighandlers.cc: |
|
|
778 extern int pipe_handler_error_count; |
|
|
779 |
|
|
780 static int initialized = 0; |
|
|
781 |
|
|
782 if (! plot_stream.is_open ()) |
|
|
783 { |
|
|
784 plot_line_count = 0; |
|
|
785 |
|
|
786 char *plot_prog = user_pref.gnuplot_binary; |
|
|
787 if (plot_prog) |
|
|
788 { |
|
|
789 plot_stream.open (plot_prog); |
|
|
790 if (! plot_stream.is_open ()) |
|
|
791 { |
|
|
792 warning ("plot: unable to open pipe to `%s'", |
|
|
793 plot_prog); |
|
|
794 |
|
|
795 if (strcmp (plot_prog, "gnuplot") != 0) |
|
|
796 { |
|
|
797 warning ("having trouble finding plotting program."); |
|
|
798 warning ("trying again with `gnuplot'"); |
|
|
799 goto last_chance; |
|
|
800 } |
|
|
801 } |
|
|
802 } |
|
|
803 else |
|
|
804 { |
|
|
805 last_chance: |
|
|
806 |
|
|
807 plot_stream.open ("gnuplot"); |
|
|
808 |
|
|
809 if (! plot_stream.is_open ()) |
|
|
810 { |
|
|
811 error ("plot: unable to open pipe to `%s'", plot_prog); |
|
|
812 return -1; |
|
|
813 } |
|
|
814 } |
|
|
815 } |
|
|
816 |
|
|
817 if (! initialized) |
|
|
818 { |
|
|
819 initialized = 1; |
|
|
820 plot_stream << "set data style lines\n"; |
|
|
821 } |
|
|
822 |
|
|
823 plot_stream << cmd; |
|
|
824 plot_stream.flush (); |
|
|
825 pipe_handler_error_count = 0; |
|
|
826 |
|
|
827 return 0; |
|
|
828 } |
|
|
829 |
|
|
830 void |
|
|
831 close_plot_stream (void) |
|
|
832 { |
|
|
833 if (plot_stream.is_open ()) |
|
|
834 plot_stream.close (); |
|
|
835 |
|
|
836 plot_line_count = 0; |
|
|
837 } |
|
|
838 |
|
|
839 DEFUN ("closeplot", Fcloseplot, Scloseplot, 1, 0, |
|
|
840 "closeplot (): close the stream to plotter") |
|
|
841 { |
|
|
842 Octave_object retval; |
|
|
843 close_plot_stream (); |
|
|
844 return retval; |
|
|
845 } |
|
|
846 |
|
|
847 DEFUN_TEXT ("hold", Fhold, Shold, -1, 1, |
|
|
848 "hold [on|off]\n\ |
|
|
849 \n\ |
|
|
850 determine whether the plot window is cleared before the next line is\n\ |
|
|
851 drawn. With no argument, toggle the current state.") |
|
|
852 { |
|
|
853 Octave_object retval; |
|
|
854 |
|
|
855 DEFINE_ARGV("hold"); |
|
|
856 |
|
|
857 switch (argc) |
|
|
858 { |
|
|
859 case 1: |
|
|
860 clear_before_plotting = ! clear_before_plotting; |
|
|
861 break; |
|
|
862 case 2: |
|
|
863 if (strcasecmp (argv[1], "on") == 0) |
|
|
864 clear_before_plotting = 0; |
|
|
865 else if (strcasecmp (argv[1], "off") == 0) |
|
|
866 clear_before_plotting = 1; |
|
|
867 else |
|
|
868 print_usage ("hold"); |
|
|
869 break; |
|
|
870 default: |
|
|
871 print_usage ("hold"); |
|
|
872 break; |
|
|
873 } |
|
|
874 |
|
|
875 DELETE_ARGV; |
|
|
876 |
|
|
877 return retval; |
|
|
878 } |
|
|
879 |
|
|
880 DEFUN ("purge_tmp_files", Fpurge_tmp_files, Spurge_tmp_files, 5, 1, |
|
|
881 "delete temporary data files used for plotting") |
|
|
882 { |
|
|
883 Octave_object retval; |
|
|
884 cleanup_tmp_files (); |
|
|
885 return retval; |
|
|
886 } |
|
|
887 |
|
|
888 DEFUN_TEXT ("set", Fset, Sset, -1, 1, |
|
|
889 "set [options]\n\ |
|
|
890 \n\ |
|
|
891 set plotting options") |
|
|
892 { |
|
|
893 Octave_object retval; |
|
|
894 |
|
|
895 DEFINE_ARGV("set"); |
|
|
896 |
|
|
897 ostrstream plot_buf; |
|
|
898 |
|
|
899 if (argc > 1) |
|
|
900 { |
|
|
901 if (almost_match ("parametric", argv[1], 3)) |
|
|
902 parametric_plot = 1; |
|
|
903 else if (almost_match ("noparametric", argv[1], 5)) |
|
|
904 parametric_plot = 0; |
|
|
905 } |
|
|
906 |
|
|
907 for (int i = 0; i < argc; i++) |
|
|
908 plot_buf << argv[i] << " "; |
|
|
909 |
|
|
910 plot_buf << "\n" << ends; |
|
|
911 |
|
|
912 char *plot_command = plot_buf.str (); |
|
|
913 send_to_plot_stream (plot_command); |
|
|
914 |
|
|
915 delete [] plot_command; |
|
|
916 |
|
|
917 DELETE_ARGV; |
|
|
918 |
|
|
919 return retval; |
|
|
920 } |
|
|
921 |
|
|
922 DEFUN_TEXT ("show", Fshow, Sshow, -1, 1, |
|
|
923 "show [options]\n\ |
|
|
924 \n\ |
|
|
925 show plotting options") |
|
|
926 { |
|
|
927 Octave_object retval; |
|
|
928 |
|
|
929 DEFINE_ARGV("show"); |
|
|
930 |
|
|
931 ostrstream plot_buf; |
|
|
932 |
|
|
933 for (int i = 0; i < argc; i++) |
|
|
934 plot_buf << argv[i] << " "; |
|
|
935 |
|
|
936 plot_buf << "\n" << ends; |
|
|
937 |
|
|
938 char *plot_command = plot_buf.str (); |
|
|
939 send_to_plot_stream (plot_command); |
|
|
940 |
|
|
941 delete [] plot_command; |
|
|
942 |
|
|
943 DELETE_ARGV; |
|
|
944 |
|
|
945 return retval; |
|
|
946 } |
|
|
947 |
|
1
|
948 /* |
|
|
949 ;;; Local Variables: *** |
|
|
950 ;;; mode: C++ *** |
|
|
951 ;;; page-delimiter: "^/\\*" *** |
|
|
952 ;;; End: *** |
|
|
953 */ |
