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