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1 // tree-plot.cc -*- C++ -*- |
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2 /* |
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3 |
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4 Copyright (C) 1992, 1993 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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28 #include <iostream.h> |
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29 #include <fstream.h> |
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30 #include <strstream.h> |
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31 |
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32 #include "error.h" |
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33 #include "utils.h" |
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34 #include "tree.h" |
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35 |
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87
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36 extern "C" |
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37 { |
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38 char *tilde_expand (char *s); /* From readline's tilde.c */ |
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39 } |
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40 |
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41 // The number of lines we\'ve plotted so far. |
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42 static int plot_line_count; |
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43 |
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44 // Is this a parametric plot? Makes a difference for 3D plotting. |
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45 int parametric_plot = 0; |
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46 |
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47 /* |
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48 * Plotting, eh? |
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49 */ |
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50 |
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51 tree_plot_command::tree_plot_command (void) |
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52 { |
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53 range = (tree_plot_limits *) NULL; |
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54 plot_list = (tree_subplot_list *) NULL; |
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55 ndim = 0; |
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56 } |
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57 |
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58 tree_plot_command::tree_plot_command (tree_subplot_list *plt, int nd) |
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59 { |
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60 range = (tree_plot_limits *) NULL; |
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61 plot_list = plt; |
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62 ndim = nd; |
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63 } |
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64 |
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65 tree_plot_command::tree_plot_command (tree_subplot_list *plt, |
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66 tree_plot_limits *rng, int nd) |
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67 { |
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68 range = rng; |
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69 plot_list = plt; |
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70 ndim = nd; |
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71 } |
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72 |
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73 tree_plot_command::~tree_plot_command (void) |
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74 { |
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75 delete range; |
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76 delete plot_list; |
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77 } |
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78 |
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79 tree_constant |
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80 tree_plot_command::eval (int print) |
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81 { |
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82 tree_constant retval; |
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83 |
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143
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84 if (error_state) |
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85 return retval; |
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86 |
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87 ostrstream plot_buf; |
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88 |
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89 switch (ndim) |
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90 { |
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91 case 2: |
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92 plot_buf << "plot"; |
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93 break; |
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94 case 3: |
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95 plot_buf << "splot"; |
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96 break; |
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97 default: |
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98 panic_impossible (); |
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99 break; |
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100 } |
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101 |
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102 if (range != (tree_plot_limits *) NULL) |
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103 range->print (ndim, plot_buf); |
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104 |
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191
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105 if (error_state) |
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106 return retval; |
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107 |
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108 plot_line_count = 0; |
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109 tree_subplot_list *ptr = plot_list; |
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110 for ( ; ptr != NULL_TREE ; ptr = ptr->next_elem ()) |
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111 { |
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112 plot_line_count++; |
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113 |
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114 if (ptr != plot_list) |
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115 plot_buf << ",\\\n "; |
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116 |
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117 int status = ptr->print (ndim, plot_buf); |
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118 if (status < 0) |
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119 return retval; |
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120 } |
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121 |
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122 plot_buf << "\n" << ends; |
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123 |
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124 // Just testing... |
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125 // char *message = plot_buf.str (); |
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126 // cout << "[*]" << message << "[*]\n"; |
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127 |
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128 if (parametric_plot && ndim == 2) |
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129 { |
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130 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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131 send_to_plot_stream ("set noparametric\n"); |
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132 char *message = plot_buf.str (); |
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133 send_to_plot_stream (message); |
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134 delete [] message; |
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135 send_to_plot_stream ("set parametric\n"); |
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136 } |
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137 else |
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138 { |
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139 char *message = plot_buf.str (); |
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140 send_to_plot_stream (message); |
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141 delete [] message; |
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142 } |
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143 |
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144 return retval; |
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145 } |
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146 |
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147 tree_subplot_list::tree_subplot_list (void) |
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148 { |
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149 plot_data = NULL_TREE; |
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150 using = (tree_subplot_using *) NULL; |
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151 title = NULL_TREE; |
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152 style = (tree_subplot_style *) NULL; |
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153 next = (tree_subplot_list *) NULL; |
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154 } |
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155 |
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156 tree_subplot_list::tree_subplot_list (tree *data) |
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157 { |
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158 plot_data = data; |
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159 using = (tree_subplot_using *) NULL; |
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160 title = NULL_TREE; |
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161 style = (tree_subplot_style *) NULL; |
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162 next = (tree_subplot_list *) NULL; |
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163 } |
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164 |
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165 tree_subplot_list::tree_subplot_list (tree_subplot_list *t) |
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166 { |
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167 plot_data = t->plot_data; |
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168 using = t->using; |
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169 title = t->title; |
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170 style = t->style; |
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171 next = t->next; |
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172 } |
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173 |
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174 tree_subplot_list::tree_subplot_list (tree_subplot_using *u, tree *t, |
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175 tree_subplot_style *s) |
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176 { |
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177 plot_data = NULL_TREE; |
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178 using = u; |
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179 title = t; |
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180 style = s; |
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181 next = (tree_subplot_list *) NULL; |
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182 } |
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183 |
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184 tree_subplot_list::~tree_subplot_list (void) |
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185 { |
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186 delete plot_data; |
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187 delete using; |
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188 delete title; |
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189 delete style; |
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190 delete next; |
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191 } |
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192 |
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193 tree_subplot_list * |
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194 tree_subplot_list::set_data (tree *data) |
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195 { |
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196 plot_data = data; |
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197 return this; |
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198 } |
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199 |
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200 tree_subplot_list * |
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201 tree_subplot_list::chain (tree_subplot_list *t) |
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202 { |
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203 tree_subplot_list *tmp = new tree_subplot_list (t); |
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204 tmp->next = this; |
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205 return tmp; |
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206 } |
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207 |
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208 tree_subplot_list * |
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209 tree_subplot_list::reverse (void) |
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210 { |
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211 tree_subplot_list *list = this; |
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212 tree_subplot_list *next; |
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213 tree_subplot_list *prev = (tree_subplot_list *) NULL; |
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214 |
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215 while (list != (tree_subplot_list *) NULL) |
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216 { |
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217 next = list->next; |
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218 list->next = prev; |
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219 prev = list; |
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220 list = next; |
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221 } |
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222 return prev; |
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223 } |
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224 |
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225 tree_subplot_list * |
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226 tree_subplot_list::next_elem (void) |
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227 { |
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228 return next; |
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229 } |
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230 |
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231 tree_constant |
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232 tree_subplot_list::eval (int print) |
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233 { |
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234 return plot_data->eval (0); |
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235 } |
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236 |
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237 int |
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238 tree_subplot_list::print (int ndim, ostrstream& plot_buf) |
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239 { |
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240 int nc = 0; |
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241 if (plot_data != NULL_TREE) |
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242 { |
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243 tree_constant data = plot_data->eval (0); |
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244 if (! error_state && data.is_defined ()) |
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245 { |
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246 char *file = (char *) NULL; |
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247 if (data.is_string_type ()) |
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248 { |
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249 file = tilde_expand (data.string_value ()); |
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250 ifstream ftmp (file); |
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251 if (ftmp) |
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252 { |
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253 plot_buf << " \"" << file << '"'; |
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254 free (file); |
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255 goto have_existing_file_or_command; |
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256 } |
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257 else |
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87
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258 { |
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259 free (file); |
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260 file = (char *) NULL; |
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261 |
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262 // Opening as a file failed. Let's try passing it along as a plot |
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263 // command. |
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264 plot_buf << " " << data.string_value (); |
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265 goto have_existing_file_or_command; |
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266 } |
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267 } |
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268 |
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269 nc = data.columns (); |
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270 switch (ndim) |
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271 { |
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272 case 2: |
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273 file = save_in_tmp_file (data, ndim); |
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274 break; |
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275 case 3: |
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276 file = save_in_tmp_file (data, ndim, parametric_plot); |
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277 break; |
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278 default: |
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279 panic_impossible (); |
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280 break; |
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281 } |
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282 |
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283 if (file) |
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284 { |
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285 mark_for_deletion (file); |
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286 plot_buf << " \"" << file << '"'; |
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287 } |
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288 } |
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289 else |
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290 return -1; |
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291 } |
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292 else |
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293 return -1; |
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294 |
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134
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295 have_existing_file_or_command: |
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296 |
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297 if (using != (tree_subplot_using *) NULL) |
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298 { |
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299 int status = using->print (ndim, nc, plot_buf); |
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300 if (status < 0) |
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301 return -1; |
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302 } |
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303 |
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304 if (title != NULL_TREE) |
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305 { |
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306 tree_constant tmp = title->eval (0); |
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307 if (! error_state && tmp.is_string_type ()) |
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308 plot_buf << " title " << '"' << tmp.string_value () << '"'; |
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309 else |
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310 { |
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311 warning ("line title must be a string"); |
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312 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
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313 } |
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314 } |
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315 else |
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316 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
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317 |
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318 if (style != (tree_subplot_style *) NULL) |
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319 { |
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320 int status = style->print (plot_buf); |
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321 if (status < 0) |
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322 return -1; |
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323 } |
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324 |
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325 return 0; |
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326 } |
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327 |
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328 tree_plot_limits::tree_plot_limits (void) |
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329 { |
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330 x_range = (tree_plot_range *) NULL; |
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331 y_range = (tree_plot_range *) NULL; |
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332 z_range = (tree_plot_range *) NULL; |
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333 } |
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334 |
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335 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim) |
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336 { |
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337 x_range = xlim; |
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338 y_range = (tree_plot_range *) NULL; |
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339 z_range = (tree_plot_range *) NULL; |
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340 } |
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341 |
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342 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim, |
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343 tree_plot_range *ylim) |
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344 { |
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345 x_range = xlim; |
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346 y_range = ylim; |
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347 z_range = (tree_plot_range *) NULL; |
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348 } |
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349 |
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350 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim, |
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351 tree_plot_range *ylim, |
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352 tree_plot_range *zlim) |
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353 { |
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354 x_range = xlim; |
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355 y_range = ylim; |
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356 z_range = zlim; |
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357 } |
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358 |
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359 tree_plot_limits::~tree_plot_limits (void) |
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360 { |
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361 delete x_range; |
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362 delete y_range; |
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363 delete z_range; |
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364 } |
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365 |
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366 tree_constant |
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367 tree_plot_limits::eval (int print) |
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368 { |
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369 tree_constant retval; |
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370 return retval; |
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371 } |
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372 |
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373 void |
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374 tree_plot_limits::print (int ndim, ostrstream& plot_buf) |
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375 { |
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376 if (ndim == 2 || ndim == 3) |
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377 { |
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378 if (x_range != (tree_plot_range *) NULL) |
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379 x_range->print (plot_buf); |
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380 else |
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381 return; |
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382 |
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383 if (y_range != (tree_plot_range *) NULL) |
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384 y_range->print (plot_buf); |
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385 else |
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386 return; |
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387 } |
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388 |
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389 if (ndim == 3 && z_range != (tree_plot_range *) NULL) |
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390 z_range->print (plot_buf); |
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391 } |
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392 |
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393 tree_plot_range::tree_plot_range (void) |
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394 { |
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395 lower = NULL_TREE; |
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396 upper = NULL_TREE; |
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397 } |
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398 |
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399 tree_plot_range::tree_plot_range (tree *l, tree *u) |
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400 { |
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401 lower = l; |
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402 upper = u; |
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403 } |
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404 |
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405 tree_plot_range::~tree_plot_range (void) |
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406 { |
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407 delete lower; |
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408 delete upper; |
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409 } |
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410 |
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411 tree_constant |
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412 tree_plot_range::eval (int print) |
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413 { |
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414 tree_constant retval; |
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415 return retval; |
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416 } |
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417 |
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418 void |
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419 tree_plot_range::print (ostrstream& plot_buf) |
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420 { |
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421 plot_buf << " ["; |
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422 |
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423 if (lower != NULL_TREE) |
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424 { |
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425 tree_constant lower_val = lower->eval (0); |
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191
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426 if (error_state) |
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427 { |
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240
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428 ::error ("evaluating lower bound of plot range"); |
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191
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429 return; |
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430 } |
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431 else |
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432 { |
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433 double lo = lower_val.to_scalar (); |
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434 plot_buf << lo; |
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435 } |
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436 } |
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437 |
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438 plot_buf << ":"; |
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439 |
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440 if (upper != NULL_TREE) |
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441 { |
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442 tree_constant upper_val = upper->eval (0); |
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191
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443 if (error_state) |
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444 { |
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240
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445 ::error ("evaluating upper bound of plot range"); |
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191
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446 return; |
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447 } |
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448 else |
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449 { |
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450 double hi = upper_val.to_scalar (); |
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451 plot_buf << hi; |
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452 } |
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1
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453 } |
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454 |
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455 plot_buf << "]"; |
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456 } |
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457 |
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458 tree_subplot_using::tree_subplot_using (void) |
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459 { |
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460 qualifier_count = 0; |
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461 x[0] = NULL_TREE; |
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462 x[1] = NULL_TREE; |
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463 x[2] = NULL_TREE; |
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464 x[3] = NULL_TREE; |
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465 scanf_fmt = NULL_TREE; |
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466 } |
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467 |
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468 tree_subplot_using::tree_subplot_using (tree *fmt) |
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469 { |
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470 qualifier_count = 0; |
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471 x[0] = NULL_TREE; |
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472 x[1] = NULL_TREE; |
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473 x[2] = NULL_TREE; |
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474 x[3] = NULL_TREE; |
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475 scanf_fmt = fmt; |
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476 } |
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477 |
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478 tree_subplot_using::~tree_subplot_using (void) |
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479 { |
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480 delete scanf_fmt; |
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481 } |
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482 |
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483 tree_subplot_using * |
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484 tree_subplot_using::set_format (tree *fmt) |
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485 { |
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486 scanf_fmt = fmt; |
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487 return this; |
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488 } |
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489 |
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490 tree_subplot_using * |
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491 tree_subplot_using::add_qualifier (tree *t) |
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492 { |
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493 if (qualifier_count < 4) |
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494 x[qualifier_count] = t; |
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495 |
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496 qualifier_count++; |
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497 |
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498 return this; |
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499 } |
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500 |
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501 tree_constant |
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502 tree_subplot_using::eval (int print) |
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503 { |
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504 tree_constant retval; |
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505 return retval; |
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506 } |
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507 |
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508 int |
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509 tree_subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
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510 { |
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511 if ((ndim == 2 && qualifier_count > 4) |
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512 || (ndim == 3 && qualifier_count > 3)) |
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513 return -1; |
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514 |
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515 for (int i = 0; i < qualifier_count; i++) |
|
|
516 { |
|
|
517 if (x[i] != NULL_TREE) |
|
|
518 { |
|
|
519 tree_constant tmp = x[i]->eval (0); |
|
191
|
520 if (error_state) |
|
|
521 { |
|
240
|
522 ::error ("evaluating plot using command"); |
|
191
|
523 return -1; |
|
|
524 } |
|
|
525 |
|
1
|
526 double val; |
|
|
527 if (tmp.is_defined ()) |
|
|
528 { |
|
|
529 val = tmp.to_scalar (); |
|
|
530 if (i == 0) |
|
|
531 plot_buf << " using "; |
|
|
532 else |
|
|
533 plot_buf << ":"; |
|
|
534 |
|
|
535 int n = NINT (val); |
|
|
536 |
|
|
537 if (n > n_max || n < 1) |
|
|
538 { |
|
240
|
539 ::error ("using: column %d out of range", n); |
|
1
|
540 return -1; |
|
|
541 } |
|
|
542 else |
|
|
543 plot_buf << n; |
|
|
544 } |
|
|
545 else |
|
|
546 return -1; |
|
|
547 } |
|
|
548 else |
|
|
549 return -1; |
|
|
550 } |
|
|
551 |
|
|
552 if (scanf_fmt != NULL_TREE) |
|
|
553 warning ("ignoring scanf format in plot command"); |
|
|
554 |
|
|
555 return 0; |
|
|
556 } |
|
|
557 |
|
|
558 tree_subplot_style::tree_subplot_style (void) |
|
|
559 { |
|
|
560 style = (char *) NULL; |
|
|
561 linetype = NULL_TREE; |
|
|
562 pointtype = NULL_TREE; |
|
|
563 } |
|
|
564 |
|
|
565 tree_subplot_style::tree_subplot_style (char *s) |
|
|
566 { |
|
|
567 style = strsave (s); |
|
|
568 linetype = NULL_TREE; |
|
|
569 pointtype = NULL_TREE; |
|
|
570 } |
|
|
571 |
|
|
572 tree_subplot_style::tree_subplot_style (char *s, tree *lt) |
|
|
573 { |
|
|
574 style = strsave (s); |
|
|
575 linetype = lt; |
|
|
576 pointtype = NULL_TREE; |
|
|
577 } |
|
|
578 |
|
|
579 tree_subplot_style::tree_subplot_style (char *s, tree *lt, tree *pt) |
|
|
580 { |
|
|
581 style = strsave (s); |
|
|
582 linetype = lt; |
|
|
583 pointtype = pt; |
|
|
584 } |
|
|
585 |
|
|
586 tree_subplot_style::~tree_subplot_style (void) |
|
|
587 { |
|
|
588 delete [] style; |
|
|
589 delete linetype; |
|
|
590 delete pointtype; |
|
|
591 } |
|
|
592 |
|
|
593 tree_constant |
|
|
594 tree_subplot_style::eval (int print) |
|
|
595 { |
|
|
596 tree_constant retval; |
|
|
597 return retval; |
|
|
598 } |
|
|
599 |
|
|
600 int |
|
|
601 tree_subplot_style::print (ostrstream& plot_buf) |
|
|
602 { |
|
|
603 if (style != (char *) NULL) |
|
|
604 { |
|
|
605 plot_buf << " with " << style; |
|
|
606 |
|
|
607 if (linetype != NULL_TREE) |
|
|
608 { |
|
|
609 tree_constant tmp = linetype->eval (0); |
|
191
|
610 if (! error_state && tmp.is_defined ()) |
|
1
|
611 { |
|
|
612 double val = tmp.to_scalar (); |
|
|
613 plot_buf << " " << NINT (val); |
|
|
614 } |
|
|
615 else |
|
191
|
616 { |
|
240
|
617 ::error ("evaluating plot style command"); |
|
191
|
618 return -1; |
|
|
619 } |
|
1
|
620 } |
|
|
621 |
|
|
622 if (pointtype != NULL_TREE) |
|
|
623 { |
|
|
624 tree_constant tmp = pointtype->eval (0); |
|
191
|
625 if (! error_state && tmp.is_defined ()) |
|
1
|
626 { |
|
|
627 double val = tmp.to_scalar (); |
|
|
628 plot_buf << " " << NINT (val); |
|
|
629 } |
|
|
630 else |
|
191
|
631 { |
|
240
|
632 ::error ("evaluating plot style command"); |
|
191
|
633 return -1; |
|
|
634 } |
|
1
|
635 } |
|
|
636 } |
|
|
637 else |
|
|
638 return -1; |
|
|
639 |
|
|
640 return 0; |
|
|
641 } |
|
|
642 |
|
|
643 /* |
|
|
644 ;;; Local Variables: *** |
|
|
645 ;;; mode: C++ *** |
|
|
646 ;;; page-delimiter: "^/\\*" *** |
|
|
647 ;;; End: *** |
|
|
648 */ |
