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