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1 // tree-plot.cc -*- C++ -*- |
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2 /* |
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3 |
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322
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4 Copyright (C) 1992, 1993, 1994 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 2, or (at your option) any |
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11 later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, write to the Free |
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20 Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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21 |
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22 */ |
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23 |
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240
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24 #ifdef HAVE_CONFIG_H |
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25 #include "config.h" |
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26 #endif |
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27 |
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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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452
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35 #include "tree-plot.h" |
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36 |
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87
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37 extern "C" |
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38 { |
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39 char *tilde_expand (char *s); /* From readline's tilde.c */ |
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40 } |
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41 |
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42 // The number of lines we\'ve plotted so far. |
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478
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43 int plot_line_count; |
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44 |
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45 // Is this a parametric plot? Makes a difference for 3D plotting. |
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46 int parametric_plot = 0; |
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47 |
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478
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48 // Should the graph window be cleared before plotting the next line? |
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49 int clear_before_plotting = 1; |
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50 |
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1
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51 /* |
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52 * Plotting, eh? |
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53 */ |
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54 |
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55 tree_plot_command::tree_plot_command (void) |
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56 { |
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57 range = (tree_plot_limits *) NULL; |
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58 plot_list = (tree_subplot_list *) NULL; |
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59 ndim = 0; |
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60 } |
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61 |
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62 tree_plot_command::tree_plot_command (tree_subplot_list *plt, int nd) |
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63 { |
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64 range = (tree_plot_limits *) NULL; |
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65 plot_list = plt; |
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66 ndim = nd; |
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67 } |
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68 |
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69 tree_plot_command::tree_plot_command (tree_subplot_list *plt, |
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70 tree_plot_limits *rng, int nd) |
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71 { |
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72 range = rng; |
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73 plot_list = plt; |
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74 ndim = nd; |
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75 } |
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76 |
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77 tree_plot_command::~tree_plot_command (void) |
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78 { |
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79 delete range; |
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80 delete plot_list; |
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81 } |
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82 |
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83 tree_constant |
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84 tree_plot_command::eval (int print) |
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85 { |
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86 tree_constant retval; |
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87 |
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143
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88 if (error_state) |
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89 return retval; |
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90 |
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91 ostrstream plot_buf; |
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92 |
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93 switch (ndim) |
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94 { |
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476
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95 case 1: |
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478
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96 if (plot_line_count == 0) |
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97 { |
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98 if (plot_list) |
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99 plot_buf << "plot"; |
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100 else |
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101 { |
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102 ::error ("replot: must have something to plot"); |
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103 return retval; |
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104 } |
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105 } |
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106 else |
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107 plot_buf << "replot"; |
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476
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108 break; |
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109 case 2: |
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478
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110 if (clear_before_plotting || plot_line_count == 0) |
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111 { |
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112 plot_line_count = 0; |
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113 plot_buf << "plot"; |
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114 } |
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115 else |
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116 plot_buf << "replot"; |
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117 break; |
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118 case 3: |
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478
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119 { |
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120 plot_line_count = 0; |
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121 plot_buf << "splot"; |
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122 } |
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123 break; |
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124 default: |
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125 panic_impossible (); |
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126 break; |
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127 } |
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128 |
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129 if (range != (tree_plot_limits *) NULL) |
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478
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130 { |
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131 if (plot_line_count == 0) |
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132 range->print (ndim, plot_buf); |
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133 else |
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134 warning ("can't specify new plot ranges with `replot' or while\ |
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135 hold is on"); |
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136 } |
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137 |
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191
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138 if (error_state) |
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139 return retval; |
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140 |
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141 tree_subplot_list *ptr = plot_list; |
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142 for ( ; ptr != NULL_TREE ; ptr = ptr->next_elem ()) |
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143 { |
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144 plot_line_count++; |
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145 |
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146 if (ptr != plot_list) |
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147 plot_buf << ",\\\n "; |
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148 |
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149 int status = ptr->print (ndim, plot_buf); |
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150 if (status < 0) |
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151 return retval; |
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152 } |
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153 |
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154 plot_buf << "\n" << ends; |
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155 |
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156 // Just testing... |
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157 // char *message = plot_buf.str (); |
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158 // cout << "[*]" << message << "[*]\n"; |
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159 |
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160 if (parametric_plot && ndim == 2) |
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161 { |
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162 warning ("can't make 2D parametric plot -- setting noparametric..."); |
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163 send_to_plot_stream ("set noparametric\n"); |
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164 char *message = plot_buf.str (); |
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165 send_to_plot_stream (message); |
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166 delete [] message; |
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167 send_to_plot_stream ("set parametric\n"); |
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168 } |
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169 else |
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170 { |
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171 char *message = plot_buf.str (); |
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172 send_to_plot_stream (message); |
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173 delete [] message; |
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174 } |
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175 |
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176 return retval; |
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177 } |
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178 |
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179 tree_subplot_list::tree_subplot_list (void) |
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180 { |
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181 plot_data = NULL_TREE; |
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182 using = (tree_subplot_using *) NULL; |
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183 title = NULL_TREE; |
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184 style = (tree_subplot_style *) NULL; |
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185 next = (tree_subplot_list *) NULL; |
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186 } |
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187 |
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188 tree_subplot_list::tree_subplot_list (tree *data) |
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189 { |
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190 plot_data = data; |
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191 using = (tree_subplot_using *) NULL; |
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192 title = NULL_TREE; |
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193 style = (tree_subplot_style *) NULL; |
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194 next = (tree_subplot_list *) NULL; |
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195 } |
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196 |
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197 tree_subplot_list::tree_subplot_list (tree_subplot_list *t) |
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198 { |
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199 plot_data = t->plot_data; |
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200 using = t->using; |
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201 title = t->title; |
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202 style = t->style; |
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203 next = t->next; |
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204 } |
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205 |
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206 tree_subplot_list::tree_subplot_list (tree_subplot_using *u, tree *t, |
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207 tree_subplot_style *s) |
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208 { |
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209 plot_data = NULL_TREE; |
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210 using = u; |
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211 title = t; |
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212 style = s; |
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213 next = (tree_subplot_list *) NULL; |
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214 } |
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215 |
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216 tree_subplot_list::~tree_subplot_list (void) |
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217 { |
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218 delete plot_data; |
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219 delete using; |
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220 delete title; |
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221 delete style; |
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222 delete next; |
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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::set_data (tree *data) |
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227 { |
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228 plot_data = data; |
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229 return this; |
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230 } |
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231 |
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232 tree_subplot_list * |
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233 tree_subplot_list::chain (tree_subplot_list *t) |
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234 { |
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235 tree_subplot_list *tmp = new tree_subplot_list (t); |
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236 tmp->next = this; |
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237 return tmp; |
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238 } |
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239 |
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240 tree_subplot_list * |
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241 tree_subplot_list::reverse (void) |
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242 { |
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243 tree_subplot_list *list = this; |
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244 tree_subplot_list *next; |
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245 tree_subplot_list *prev = (tree_subplot_list *) NULL; |
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246 |
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247 while (list != (tree_subplot_list *) NULL) |
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248 { |
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249 next = list->next; |
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250 list->next = prev; |
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251 prev = list; |
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252 list = next; |
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253 } |
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254 return prev; |
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255 } |
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256 |
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257 tree_subplot_list * |
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258 tree_subplot_list::next_elem (void) |
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259 { |
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260 return next; |
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261 } |
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262 |
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263 tree_constant |
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264 tree_subplot_list::eval (int print) |
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265 { |
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266 return plot_data->eval (0); |
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267 } |
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268 |
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269 int |
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270 tree_subplot_list::print (int ndim, ostrstream& plot_buf) |
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271 { |
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272 int nc = 0; |
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273 if (plot_data != NULL_TREE) |
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274 { |
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275 tree_constant data = plot_data->eval (0); |
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191
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276 if (! error_state && data.is_defined ()) |
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277 { |
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278 char *file = (char *) NULL; |
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279 if (data.is_string_type ()) |
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280 { |
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87
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281 file = tilde_expand (data.string_value ()); |
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282 ifstream ftmp (file); |
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283 if (ftmp) |
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284 { |
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285 plot_buf << " \"" << file << '"'; |
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286 free (file); |
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287 goto have_existing_file_or_command; |
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288 } |
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289 else |
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87
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290 { |
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291 free (file); |
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292 file = (char *) NULL; |
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134
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293 |
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294 // Opening as a file failed. Let's try passing it along as a plot |
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295 // command. |
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296 plot_buf << " " << data.string_value (); |
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297 goto have_existing_file_or_command; |
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87
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298 } |
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86
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299 } |
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300 |
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301 nc = data.columns (); |
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302 switch (ndim) |
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303 { |
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304 case 2: |
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305 file = save_in_tmp_file (data, ndim); |
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306 break; |
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307 case 3: |
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308 file = save_in_tmp_file (data, ndim, parametric_plot); |
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309 break; |
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310 default: |
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311 panic_impossible (); |
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312 break; |
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313 } |
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314 |
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315 if (file) |
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316 { |
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317 mark_for_deletion (file); |
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318 plot_buf << " \"" << file << '"'; |
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319 } |
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320 } |
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321 else |
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322 return -1; |
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323 } |
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324 else |
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325 return -1; |
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326 |
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134
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327 have_existing_file_or_command: |
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328 |
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329 if (using != (tree_subplot_using *) NULL) |
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330 { |
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331 int status = using->print (ndim, nc, plot_buf); |
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332 if (status < 0) |
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333 return -1; |
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334 } |
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335 |
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336 if (title != NULL_TREE) |
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337 { |
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338 tree_constant tmp = title->eval (0); |
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191
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339 if (! error_state && tmp.is_string_type ()) |
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340 plot_buf << " title " << '"' << tmp.string_value () << '"'; |
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341 else |
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342 { |
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343 warning ("line title must be a string"); |
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344 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
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345 } |
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346 } |
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347 else |
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348 plot_buf << " title " << '"' << "line " << plot_line_count << '"'; |
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349 |
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350 if (style != (tree_subplot_style *) NULL) |
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351 { |
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352 int status = style->print (plot_buf); |
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353 if (status < 0) |
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354 return -1; |
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355 } |
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356 |
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357 return 0; |
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358 } |
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359 |
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360 tree_plot_limits::tree_plot_limits (void) |
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361 { |
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362 x_range = (tree_plot_range *) NULL; |
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363 y_range = (tree_plot_range *) NULL; |
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364 z_range = (tree_plot_range *) NULL; |
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365 } |
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366 |
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367 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim) |
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368 { |
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369 x_range = xlim; |
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370 y_range = (tree_plot_range *) NULL; |
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371 z_range = (tree_plot_range *) NULL; |
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372 } |
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373 |
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374 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim, |
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375 tree_plot_range *ylim) |
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376 { |
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377 x_range = xlim; |
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378 y_range = ylim; |
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379 z_range = (tree_plot_range *) NULL; |
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380 } |
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381 |
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382 tree_plot_limits::tree_plot_limits (tree_plot_range *xlim, |
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383 tree_plot_range *ylim, |
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384 tree_plot_range *zlim) |
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385 { |
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386 x_range = xlim; |
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387 y_range = ylim; |
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388 z_range = zlim; |
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389 } |
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390 |
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391 tree_plot_limits::~tree_plot_limits (void) |
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392 { |
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393 delete x_range; |
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394 delete y_range; |
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395 delete z_range; |
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396 } |
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397 |
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398 tree_constant |
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399 tree_plot_limits::eval (int print) |
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400 { |
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401 tree_constant retval; |
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402 return retval; |
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403 } |
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404 |
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405 void |
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406 tree_plot_limits::print (int ndim, ostrstream& plot_buf) |
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407 { |
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408 if (ndim == 2 || ndim == 3) |
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409 { |
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410 if (x_range != (tree_plot_range *) NULL) |
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411 x_range->print (plot_buf); |
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412 else |
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413 return; |
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414 |
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415 if (y_range != (tree_plot_range *) NULL) |
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416 y_range->print (plot_buf); |
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417 else |
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418 return; |
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419 } |
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420 |
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421 if (ndim == 3 && z_range != (tree_plot_range *) NULL) |
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422 z_range->print (plot_buf); |
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423 } |
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424 |
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425 tree_plot_range::tree_plot_range (void) |
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426 { |
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427 lower = NULL_TREE; |
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428 upper = NULL_TREE; |
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429 } |
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430 |
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431 tree_plot_range::tree_plot_range (tree *l, tree *u) |
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432 { |
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433 lower = l; |
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434 upper = u; |
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435 } |
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436 |
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437 tree_plot_range::~tree_plot_range (void) |
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438 { |
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439 delete lower; |
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440 delete upper; |
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441 } |
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442 |
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443 tree_constant |
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444 tree_plot_range::eval (int print) |
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445 { |
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446 tree_constant retval; |
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447 return retval; |
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448 } |
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449 |
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450 void |
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451 tree_plot_range::print (ostrstream& plot_buf) |
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452 { |
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453 plot_buf << " ["; |
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454 |
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455 if (lower != NULL_TREE) |
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456 { |
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457 tree_constant lower_val = lower->eval (0); |
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191
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458 if (error_state) |
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459 { |
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240
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460 ::error ("evaluating lower bound of plot range"); |
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191
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461 return; |
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462 } |
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463 else |
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464 { |
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465 double lo = lower_val.to_scalar (); |
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466 plot_buf << lo; |
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467 } |
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1
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468 } |
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469 |
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470 plot_buf << ":"; |
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471 |
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472 if (upper != NULL_TREE) |
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473 { |
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474 tree_constant upper_val = upper->eval (0); |
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191
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475 if (error_state) |
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476 { |
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240
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477 ::error ("evaluating upper bound of plot range"); |
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191
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478 return; |
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479 } |
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480 else |
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481 { |
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482 double hi = upper_val.to_scalar (); |
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483 plot_buf << hi; |
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484 } |
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1
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485 } |
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486 |
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487 plot_buf << "]"; |
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488 } |
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489 |
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490 tree_subplot_using::tree_subplot_using (void) |
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491 { |
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492 qualifier_count = 0; |
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493 x[0] = NULL_TREE; |
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494 x[1] = NULL_TREE; |
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495 x[2] = NULL_TREE; |
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496 x[3] = NULL_TREE; |
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497 scanf_fmt = NULL_TREE; |
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498 } |
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499 |
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500 tree_subplot_using::tree_subplot_using (tree *fmt) |
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501 { |
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502 qualifier_count = 0; |
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503 x[0] = NULL_TREE; |
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504 x[1] = NULL_TREE; |
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505 x[2] = NULL_TREE; |
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506 x[3] = NULL_TREE; |
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507 scanf_fmt = fmt; |
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508 } |
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509 |
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510 tree_subplot_using::~tree_subplot_using (void) |
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511 { |
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|
512 delete scanf_fmt; |
|
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513 } |
|
|
514 |
|
|
515 tree_subplot_using * |
|
|
516 tree_subplot_using::set_format (tree *fmt) |
|
|
517 { |
|
|
518 scanf_fmt = fmt; |
|
|
519 return this; |
|
|
520 } |
|
|
521 |
|
|
522 tree_subplot_using * |
|
|
523 tree_subplot_using::add_qualifier (tree *t) |
|
|
524 { |
|
|
525 if (qualifier_count < 4) |
|
|
526 x[qualifier_count] = t; |
|
|
527 |
|
|
528 qualifier_count++; |
|
|
529 |
|
|
530 return this; |
|
|
531 } |
|
|
532 |
|
|
533 tree_constant |
|
|
534 tree_subplot_using::eval (int print) |
|
|
535 { |
|
|
536 tree_constant retval; |
|
|
537 return retval; |
|
|
538 } |
|
|
539 |
|
|
540 int |
|
|
541 tree_subplot_using::print (int ndim, int n_max, ostrstream& plot_buf) |
|
|
542 { |
|
|
543 if ((ndim == 2 && qualifier_count > 4) |
|
|
544 || (ndim == 3 && qualifier_count > 3)) |
|
|
545 return -1; |
|
|
546 |
|
|
547 for (int i = 0; i < qualifier_count; i++) |
|
|
548 { |
|
|
549 if (x[i] != NULL_TREE) |
|
|
550 { |
|
|
551 tree_constant tmp = x[i]->eval (0); |
|
191
|
552 if (error_state) |
|
|
553 { |
|
240
|
554 ::error ("evaluating plot using command"); |
|
191
|
555 return -1; |
|
|
556 } |
|
|
557 |
|
1
|
558 double val; |
|
|
559 if (tmp.is_defined ()) |
|
|
560 { |
|
|
561 val = tmp.to_scalar (); |
|
|
562 if (i == 0) |
|
|
563 plot_buf << " using "; |
|
|
564 else |
|
|
565 plot_buf << ":"; |
|
|
566 |
|
|
567 int n = NINT (val); |
|
|
568 |
|
322
|
569 if (n < 1 || n_max > 0 && n > n_max) |
|
1
|
570 { |
|
240
|
571 ::error ("using: column %d out of range", n); |
|
1
|
572 return -1; |
|
|
573 } |
|
|
574 else |
|
|
575 plot_buf << n; |
|
|
576 } |
|
|
577 else |
|
|
578 return -1; |
|
|
579 } |
|
|
580 else |
|
|
581 return -1; |
|
|
582 } |
|
|
583 |
|
|
584 if (scanf_fmt != NULL_TREE) |
|
|
585 warning ("ignoring scanf format in plot command"); |
|
|
586 |
|
|
587 return 0; |
|
|
588 } |
|
|
589 |
|
|
590 tree_subplot_style::tree_subplot_style (void) |
|
|
591 { |
|
|
592 style = (char *) NULL; |
|
|
593 linetype = NULL_TREE; |
|
|
594 pointtype = NULL_TREE; |
|
|
595 } |
|
|
596 |
|
|
597 tree_subplot_style::tree_subplot_style (char *s) |
|
|
598 { |
|
|
599 style = strsave (s); |
|
|
600 linetype = NULL_TREE; |
|
|
601 pointtype = NULL_TREE; |
|
|
602 } |
|
|
603 |
|
|
604 tree_subplot_style::tree_subplot_style (char *s, tree *lt) |
|
|
605 { |
|
|
606 style = strsave (s); |
|
|
607 linetype = lt; |
|
|
608 pointtype = NULL_TREE; |
|
|
609 } |
|
|
610 |
|
|
611 tree_subplot_style::tree_subplot_style (char *s, tree *lt, tree *pt) |
|
|
612 { |
|
|
613 style = strsave (s); |
|
|
614 linetype = lt; |
|
|
615 pointtype = pt; |
|
|
616 } |
|
|
617 |
|
|
618 tree_subplot_style::~tree_subplot_style (void) |
|
|
619 { |
|
|
620 delete [] style; |
|
|
621 delete linetype; |
|
|
622 delete pointtype; |
|
|
623 } |
|
|
624 |
|
|
625 tree_constant |
|
|
626 tree_subplot_style::eval (int print) |
|
|
627 { |
|
|
628 tree_constant retval; |
|
|
629 return retval; |
|
|
630 } |
|
|
631 |
|
|
632 int |
|
|
633 tree_subplot_style::print (ostrstream& plot_buf) |
|
|
634 { |
|
|
635 if (style != (char *) NULL) |
|
|
636 { |
|
|
637 plot_buf << " with " << style; |
|
|
638 |
|
|
639 if (linetype != NULL_TREE) |
|
|
640 { |
|
|
641 tree_constant tmp = linetype->eval (0); |
|
191
|
642 if (! error_state && tmp.is_defined ()) |
|
1
|
643 { |
|
|
644 double val = tmp.to_scalar (); |
|
|
645 plot_buf << " " << NINT (val); |
|
|
646 } |
|
|
647 else |
|
191
|
648 { |
|
240
|
649 ::error ("evaluating plot style command"); |
|
191
|
650 return -1; |
|
|
651 } |
|
1
|
652 } |
|
|
653 |
|
|
654 if (pointtype != NULL_TREE) |
|
|
655 { |
|
|
656 tree_constant tmp = pointtype->eval (0); |
|
191
|
657 if (! error_state && tmp.is_defined ()) |
|
1
|
658 { |
|
|
659 double val = tmp.to_scalar (); |
|
|
660 plot_buf << " " << NINT (val); |
|
|
661 } |
|
|
662 else |
|
191
|
663 { |
|
240
|
664 ::error ("evaluating plot style command"); |
|
191
|
665 return -1; |
|
|
666 } |
|
1
|
667 } |
|
|
668 } |
|
|
669 else |
|
|
670 return -1; |
|
|
671 |
|
|
672 return 0; |
|
|
673 } |
|
|
674 |
|
|
675 /* |
|
|
676 ;;; Local Variables: *** |
|
|
677 ;;; mode: C++ *** |
|
|
678 ;;; page-delimiter: "^/\\*" *** |
|
|
679 ;;; End: *** |
|
|
680 */ |
