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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 <strstream.h> |
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30 |
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31 #include "error.h" |
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32 #include "utils.h" |
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33 #include "tree.h" |
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34 |
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35 // The number of lines we\'ve plotted so far. |
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36 static int plot_line_count; |
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37 |
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38 // Is this a parametric plot? Makes a difference for 3D plotting. |
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39 int parametric_plot = 0; |
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40 |
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41 /* |
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42 * Plotting, eh? |
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43 */ |
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44 |
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45 tree_plot_command::tree_plot_command (void) |
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46 { |
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47 range = (tree_plot_limits *) NULL; |
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48 plot_list = (tree_subplot_list *) NULL; |
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49 ndim = 0; |
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50 } |
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51 |
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52 tree_plot_command::tree_plot_command (tree_subplot_list *plt, int nd) |
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53 { |
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54 range = (tree_plot_limits *) NULL; |
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55 plot_list = plt; |
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56 ndim = nd; |
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57 } |
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58 |
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59 tree_plot_command::tree_plot_command (tree_subplot_list *plt, |
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60 tree_plot_limits *rng, int nd) |
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61 { |
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62 range = rng; |
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63 plot_list = plt; |
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64 ndim = nd; |
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65 } |
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66 |
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67 tree_plot_command::~tree_plot_command (void) |
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68 { |
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69 delete range; |
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70 delete plot_list; |
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71 } |
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72 |
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73 tree_constant |
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74 tree_plot_command::eval (int print) |
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75 { |
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76 tree_constant retval; |
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77 |
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78 ostrstream plot_buf; |
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79 |
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80 switch (ndim) |
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81 { |
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82 case 2: |
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83 plot_buf << "plot"; |
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84 break; |
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85 case 3: |
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86 plot_buf << "splot"; |
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87 break; |
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88 default: |
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89 panic_impossible (); |
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90 break; |
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91 } |
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92 |
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93 if (range != (tree_plot_limits *) NULL) |
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94 range->print (ndim, plot_buf); |
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95 |
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96 plot_line_count = 0; |
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97 tree_subplot_list *ptr = plot_list; |
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98 for ( ; ptr != NULL_TREE ; ptr = ptr->next_elem ()) |
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99 { |
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100 plot_line_count++; |
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101 |
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102 if (ptr != plot_list) |
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103 plot_buf << ",\\\n "; |
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104 |
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105 int status = ptr->print (ndim, plot_buf); |
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106 if (status < 0) |
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107 return retval; |
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108 } |
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109 |
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110 // We need to make sure the buffer is null-terminated because it seems |
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111 // that the libg++-2.3 ostrstream::str() function doesn\'t guarantee |
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112 // that it will be... |
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113 |
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114 plot_buf << "\n" << ends; |
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115 |
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116 // Just testing... |
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117 // char *message = plot_buf.str (); |
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118 // cout << "[*]" << message << "[*]\n"; |
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119 |
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120 if (parametric_plot && ndim == 2) |
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121 { |
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122 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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123 send_to_plot_stream ("set noparametric\n"); |
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124 char *message = plot_buf.str (); |
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125 send_to_plot_stream (message); |
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126 delete [] message; |
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127 send_to_plot_stream ("set parametric\n"); |
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128 } |
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129 else |
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130 { |
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131 char *message = plot_buf.str (); |
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132 send_to_plot_stream (message); |
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133 delete [] message; |
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134 } |
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135 |
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136 return retval; |
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137 } |
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138 |
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139 tree_subplot_list::tree_subplot_list (void) |
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140 { |
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141 plot_data = NULL_TREE; |
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142 using = (tree_subplot_using *) NULL; |
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143 title = NULL_TREE; |
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144 style = (tree_subplot_style *) NULL; |
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145 next = (tree_subplot_list *) NULL; |
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146 } |
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147 |
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148 tree_subplot_list::tree_subplot_list (tree *data) |
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149 { |
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150 plot_data = data; |
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151 using = (tree_subplot_using *) NULL; |
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152 title = NULL_TREE; |
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153 style = (tree_subplot_style *) NULL; |
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154 next = (tree_subplot_list *) NULL; |
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155 } |
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156 |
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157 tree_subplot_list::tree_subplot_list (tree_subplot_list *t) |
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158 { |
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159 plot_data = t->plot_data; |
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160 using = t->using; |
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161 title = t->title; |
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162 style = t->style; |
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163 next = t->next; |
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164 } |
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165 |
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166 tree_subplot_list::tree_subplot_list (tree_subplot_using *u, tree *t, |
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167 tree_subplot_style *s) |
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168 { |
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169 plot_data = NULL_TREE; |
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170 using = u; |
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171 title = t; |
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172 style = s; |
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173 next = (tree_subplot_list *) NULL; |
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174 } |
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175 |
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176 tree_subplot_list::~tree_subplot_list (void) |
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177 { |
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178 delete plot_data; |
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179 delete using; |
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180 delete title; |
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181 delete style; |
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182 delete next; |
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183 } |
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184 |
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185 tree_subplot_list * |
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186 tree_subplot_list::set_data (tree *data) |
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187 { |
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188 plot_data = data; |
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189 return this; |
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190 } |
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191 |
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192 tree_subplot_list * |
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193 tree_subplot_list::chain (tree_subplot_list *t) |
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194 { |
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195 tree_subplot_list *tmp = new tree_subplot_list (t); |
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196 tmp->next = this; |
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197 return tmp; |
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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::reverse (void) |
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202 { |
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203 tree_subplot_list *list = this; |
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204 tree_subplot_list *next; |
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205 tree_subplot_list *prev = (tree_subplot_list *) NULL; |
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206 |
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207 while (list != (tree_subplot_list *) NULL) |
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208 { |
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209 next = list->next; |
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210 list->next = prev; |
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211 prev = list; |
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212 list = next; |
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213 } |
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214 return prev; |
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215 } |
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216 |
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217 tree_subplot_list * |
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218 tree_subplot_list::next_elem (void) |
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219 { |
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220 return next; |
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221 } |
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222 |
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223 tree_constant |
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224 tree_subplot_list::eval (int print) |
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225 { |
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226 return plot_data->eval (0); |
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227 } |
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228 |
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229 int |
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230 tree_subplot_list::print (int ndim, ostrstream& plot_buf) |
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231 { |
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232 int nc = 0; |
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233 if (plot_data != NULL_TREE) |
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234 { |
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235 tree_constant data = plot_data->eval (0); |
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236 if (data.is_defined ()) |
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237 { |
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238 nc = data.columns (); |
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239 char *file = (char *) NULL; |
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240 switch (ndim) |
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241 { |
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242 case 2: |
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243 file = save_in_tmp_file (data, ndim); |
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244 break; |
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245 case 3: |
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246 file = save_in_tmp_file (data, ndim, parametric_plot); |
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247 break; |
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248 default: |
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249 panic_impossible (); |
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250 break; |
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251 } |
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252 |
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253 if (file) |
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254 { |
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255 mark_for_deletion (file); |
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256 plot_buf << " \"" << file << '"'; |
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257 } |
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258 } |
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259 else |
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260 return -1; |
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261 } |
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262 else |
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263 return -1; |
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264 |
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265 if (using != (tree_subplot_using *) NULL) |
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266 { |
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267 int status = using->print (ndim, nc, plot_buf); |
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268 if (status < 0) |
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269 return -1; |
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270 } |
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271 |
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272 if (title != NULL_TREE) |
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273 { |
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274 tree_constant tmp = title->eval (0); |
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275 if (tmp.is_string_type ()) |
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276 plot_buf << " title " << '"' << tmp.string_value () << '"'; |
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277 else |
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278 { |
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279 warning ("line title must be a string"); |
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280 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
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281 } |
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282 } |
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283 else |
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284 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
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285 |
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286 if (style != (tree_subplot_style *) NULL) |
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287 { |
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288 int status = style->print (plot_buf); |
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289 if (status < 0) |
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290 return -1; |
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291 } |
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292 |
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293 return 0; |
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294 } |
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295 |
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296 tree_plot_limits::tree_plot_limits (void) |
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297 { |
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298 x_range = (tree_plot_range *) NULL; |
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299 y_range = (tree_plot_range *) NULL; |
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300 z_range = (tree_plot_range *) NULL; |
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301 } |
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302 |
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303 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim) |
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304 { |
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305 x_range = xlim; |
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306 y_range = (tree_plot_range *) NULL; |
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307 z_range = (tree_plot_range *) NULL; |
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308 } |
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309 |
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310 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim, |
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311 tree_plot_range *ylim) |
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312 { |
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313 x_range = xlim; |
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314 y_range = ylim; |
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315 z_range = (tree_plot_range *) NULL; |
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316 } |
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317 |
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318 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim, |
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319 tree_plot_range *ylim, |
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320 tree_plot_range *zlim) |
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321 { |
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322 x_range = xlim; |
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323 y_range = ylim; |
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324 z_range = zlim; |
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325 } |
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326 |
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327 tree_plot_limits::~tree_plot_limits (void) |
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328 { |
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329 delete x_range; |
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330 delete y_range; |
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331 delete z_range; |
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332 } |
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333 |
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334 tree_constant |
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335 tree_plot_limits::eval (int print) |
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336 { |
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337 tree_constant retval; |
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338 return retval; |
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339 } |
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340 |
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341 void |
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342 tree_plot_limits::print (int ndim, ostrstream& plot_buf) |
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343 { |
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344 if (ndim == 2 || ndim == 3) |
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345 { |
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346 if (x_range != (tree_plot_range *) NULL) |
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347 x_range->print (plot_buf); |
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348 else |
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349 return; |
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350 |
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351 if (y_range != (tree_plot_range *) NULL) |
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352 y_range->print (plot_buf); |
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353 else |
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354 return; |
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355 } |
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356 |
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357 if (ndim == 3 && z_range != (tree_plot_range *) NULL) |
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358 z_range->print (plot_buf); |
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359 } |
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360 |
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361 tree_plot_range::tree_plot_range (void) |
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362 { |
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363 lower = NULL_TREE; |
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364 upper = NULL_TREE; |
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365 } |
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366 |
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367 tree_plot_range::tree_plot_range (tree *l, tree *u) |
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368 { |
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369 lower = l; |
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370 upper = u; |
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371 } |
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372 |
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373 tree_plot_range::~tree_plot_range (void) |
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374 { |
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375 delete lower; |
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376 delete upper; |
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377 } |
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378 |
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379 tree_constant |
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380 tree_plot_range::eval (int print) |
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381 { |
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382 tree_constant retval; |
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383 return retval; |
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384 } |
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385 |
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386 void |
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387 tree_plot_range::print (ostrstream& plot_buf) |
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388 { |
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389 plot_buf << " ["; |
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390 |
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391 if (lower != NULL_TREE) |
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392 { |
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393 tree_constant lower_val = lower->eval (0); |
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394 double lo = lower_val.to_scalar (); |
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395 plot_buf << lo; |
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396 } |
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397 |
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398 plot_buf << ":"; |
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399 |
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400 if (upper != NULL_TREE) |
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401 { |
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402 tree_constant upper_val = upper->eval (0); |
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403 double hi = upper_val.to_scalar (); |
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404 plot_buf << hi; |
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405 } |
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406 |
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407 plot_buf << "]"; |
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408 } |
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409 |
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410 tree_subplot_using::tree_subplot_using (void) |
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411 { |
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412 qualifier_count = 0; |
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413 x[0] = NULL_TREE; |
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414 x[1] = NULL_TREE; |
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415 x[2] = NULL_TREE; |
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416 x[3] = NULL_TREE; |
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417 scanf_fmt = NULL_TREE; |
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418 } |
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419 |
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420 tree_subplot_using::tree_subplot_using (tree *fmt) |
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421 { |
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422 qualifier_count = 0; |
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423 x[0] = NULL_TREE; |
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424 x[1] = NULL_TREE; |
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425 x[2] = NULL_TREE; |
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426 x[3] = NULL_TREE; |
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427 scanf_fmt = fmt; |
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428 } |
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429 |
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430 tree_subplot_using::~tree_subplot_using (void) |
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431 { |
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432 delete scanf_fmt; |
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433 } |
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434 |
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435 tree_subplot_using * |
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436 tree_subplot_using::set_format (tree *fmt) |
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437 { |
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438 scanf_fmt = fmt; |
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439 return this; |
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440 } |
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441 |
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442 tree_subplot_using * |
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443 tree_subplot_using::add_qualifier (tree *t) |
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444 { |
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445 if (qualifier_count < 4) |
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446 x[qualifier_count] = t; |
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447 |
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448 qualifier_count++; |
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449 |
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450 return this; |
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451 } |
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452 |
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453 tree_constant |
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454 tree_subplot_using::eval (int print) |
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455 { |
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456 tree_constant retval; |
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457 return retval; |
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458 } |
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459 |
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460 int |
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461 tree_subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
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462 { |
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463 if ((ndim == 2 && qualifier_count > 4) |
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464 || (ndim == 3 && qualifier_count > 3)) |
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465 return -1; |
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466 |
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467 for (int i = 0; i < qualifier_count; i++) |
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468 { |
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469 if (x[i] != NULL_TREE) |
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470 { |
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471 tree_constant tmp = x[i]->eval (0); |
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472 double val; |
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473 if (tmp.is_defined ()) |
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474 { |
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475 val = tmp.to_scalar (); |
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476 if (i == 0) |
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477 plot_buf << " using "; |
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478 else |
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479 plot_buf << ":"; |
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480 |
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481 int n = NINT (val); |
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482 |
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483 if (n > n_max || n < 1) |
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484 { |
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485 error ("using: column %d out of range", n); |
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486 return -1; |
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487 } |
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488 else |
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489 plot_buf << n; |
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490 } |
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491 else |
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492 return -1; |
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493 } |
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494 else |
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495 return -1; |
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496 } |
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497 |
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498 if (scanf_fmt != NULL_TREE) |
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499 warning ("ignoring scanf format in plot command"); |
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500 |
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501 return 0; |
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502 } |
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503 |
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504 tree_subplot_style::tree_subplot_style (void) |
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505 { |
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506 style = (char *) NULL; |
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507 linetype = NULL_TREE; |
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508 pointtype = NULL_TREE; |
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509 } |
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510 |
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511 tree_subplot_style::tree_subplot_style (char *s) |
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512 { |
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513 style = strsave (s); |
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514 linetype = NULL_TREE; |
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515 pointtype = NULL_TREE; |
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516 } |
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517 |
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518 tree_subplot_style::tree_subplot_style (char *s, tree *lt) |
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519 { |
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520 style = strsave (s); |
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521 linetype = lt; |
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|
522 pointtype = NULL_TREE; |
|
|
523 } |
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524 |
|
|
525 tree_subplot_style::tree_subplot_style (char *s, tree *lt, tree *pt) |
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|
526 { |
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527 style = strsave (s); |
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528 linetype = lt; |
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|
529 pointtype = pt; |
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|
530 } |
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531 |
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532 tree_subplot_style::~tree_subplot_style (void) |
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|
533 { |
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534 delete [] style; |
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535 delete linetype; |
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|
536 delete pointtype; |
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|
537 } |
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|
538 |
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|
539 tree_constant |
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|
540 tree_subplot_style::eval (int print) |
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|
541 { |
|
|
542 tree_constant retval; |
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543 return retval; |
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|
544 } |
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|
545 |
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|
546 int |
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|
547 tree_subplot_style::print (ostrstream& plot_buf) |
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|
548 { |
|
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549 if (style != (char *) NULL) |
|
|
550 { |
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|
551 plot_buf << " with " << style; |
|
|
552 |
|
|
553 if (linetype != NULL_TREE) |
|
|
554 { |
|
|
555 tree_constant tmp = linetype->eval (0); |
|
|
556 if (tmp.is_defined ()) |
|
|
557 { |
|
|
558 double val = tmp.to_scalar (); |
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|
559 plot_buf << " " << NINT (val); |
|
|
560 } |
|
|
561 else |
|
|
562 return -1; |
|
|
563 } |
|
|
564 |
|
|
565 if (pointtype != NULL_TREE) |
|
|
566 { |
|
|
567 tree_constant tmp = pointtype->eval (0); |
|
|
568 if (tmp.is_defined ()) |
|
|
569 { |
|
|
570 double val = tmp.to_scalar (); |
|
|
571 plot_buf << " " << NINT (val); |
|
|
572 } |
|
|
573 else |
|
|
574 return -1; |
|
|
575 } |
|
|
576 } |
|
|
577 else |
|
|
578 return -1; |
|
|
579 |
|
|
580 return 0; |
|
|
581 } |
|
|
582 |
|
|
583 /* |
|
|
584 ;;; Local Variables: *** |
|
|
585 ;;; mode: C++ *** |
|
|
586 ;;; page-delimiter: "^/\\*" *** |
|
|
587 ;;; End: *** |
|
|
588 */ |
