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1 /* |
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3 Copyright (C) 1996 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_tree_plot_h) |
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24 #define octave_tree_plot_h 1 |
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25 |
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26 #if defined (__GNUG__) |
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27 #pragma interface |
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28 #endif |
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29 |
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30 class ostream; |
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31 class ostrstream; |
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32 |
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33 class tree_command; |
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34 class tree_plot_command; |
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35 class plot_limits; |
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36 class plot_range; |
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37 class subplot_using; |
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38 class subplot_style; |
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39 class subplot; |
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40 class subplot_list; |
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41 |
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42 class tree_walker; |
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43 |
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44 #include <csignal> |
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45 |
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46 #include <string> |
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47 |
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48 #include <SLList.h> |
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49 |
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50 #include "dColVector.h" |
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51 |
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52 #include "idx-vector.h" |
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53 #include "pt-cmd.h" |
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54 #include "pt-exp.h" |
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55 |
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56 class |
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57 tree_plot_command : public tree_command |
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58 { |
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59 public: |
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60 |
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61 tree_plot_command (subplot_list *plt = 0, plot_limits *rng = 0, int nd = 0) |
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62 : tree_command (), ndim (nd), range (rng), plot_list (plt) { } |
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63 |
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64 ~tree_plot_command (void); |
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65 |
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66 void eval (void); |
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67 |
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68 int num_dimensions (void) { return ndim; } |
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69 |
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70 plot_limits *limits (void) { return range; } |
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71 |
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72 subplot_list *subplots (void) { return plot_list; } |
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73 |
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74 void accept (tree_walker& tw); |
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75 |
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76 private: |
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77 |
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78 // The number of dimensions. 1 indicates a replot command. |
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79 int ndim; |
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80 |
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81 // The data ranges for the plot. |
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82 plot_limits *range; |
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83 |
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84 // The list of plots for this plot command. For example, the |
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85 // command "plot sin(x), cos(x)" has two subplot commands. |
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86 subplot_list *plot_list; |
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87 }; |
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88 |
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89 class |
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90 plot_limits |
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91 { |
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92 public: |
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93 |
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94 plot_limits (plot_range *xlim = 0, plot_range *ylim = 0, |
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95 plot_range *zlim = 0) |
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96 : x_range (xlim), y_range (ylim), z_range (zlim) { } |
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97 |
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98 ~plot_limits (void); |
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99 |
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100 void print (int ndim, ostrstream& plot_buf); |
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101 |
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102 plot_range *x_limits (void) { return x_range; } |
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103 plot_range *y_limits (void) { return y_range; } |
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104 plot_range *z_limits (void) { return z_range; } |
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105 |
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106 void accept (tree_walker& tw); |
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107 |
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108 private: |
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109 |
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110 // Specified limits of the x, y, and z axes we should display for |
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111 // this plot. |
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112 plot_range *x_range; |
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113 plot_range *y_range; |
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114 plot_range *z_range; |
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115 }; |
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116 |
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117 class |
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118 plot_range |
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119 { |
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120 public: |
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121 |
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122 plot_range (tree_expression *l = 0, tree_expression *u = 0) |
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123 : lower (l), upper (u) { } |
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124 |
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125 ~plot_range (void); |
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126 |
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127 void print (ostrstream& plot_buf); |
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128 |
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129 tree_expression *lower_bound (void) { return lower; } |
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130 |
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131 tree_expression *upper_bound (void) { return upper; } |
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132 |
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133 void accept (tree_walker& tw); |
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134 |
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135 private: |
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136 |
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137 // A range can specify a lower or upper bound or both. If neither |
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138 // is specified, the range to display is determined from the data. |
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139 tree_expression *lower; |
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140 tree_expression *upper; |
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141 }; |
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142 |
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143 class |
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144 subplot_using |
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145 { |
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146 public: |
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147 |
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148 subplot_using (tree_expression *fmt = 0) |
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149 : qual_count (0), scanf_fmt (fmt), val (4, -1) |
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150 { |
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151 x[0] = x[1] = x[2] = x[3] = 0; |
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152 } |
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153 |
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154 ~subplot_using (void); |
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155 |
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156 subplot_using *set_format (tree_expression *fmt) |
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157 { |
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158 scanf_fmt = fmt; |
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159 return this; |
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160 } |
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161 |
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162 subplot_using *add_qualifier (tree_expression *t) |
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163 { |
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164 if (qual_count < 4) |
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165 x[qual_count] = t; |
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166 |
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167 qual_count++; |
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168 |
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169 return this; |
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170 } |
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171 |
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172 int eval (int ndim, int n_max); |
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173 |
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174 ColumnVector values (int ndim, int n_max = 0); |
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175 |
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176 int print (int ndim, int n_max, ostrstream& plot_buf); |
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177 |
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178 int qualifier_count (void) { return qual_count; } |
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179 |
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180 tree_expression **qualifiers (void) { return x; } |
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181 |
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182 tree_expression *scanf_format (void) { return scanf_fmt; } |
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183 |
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184 void accept (tree_walker& tw); |
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185 |
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186 private: |
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187 |
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188 // The number of using qualifiers (in "using 1:2", 1 and 2 are the |
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189 // qualifiers). |
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190 int qual_count; |
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191 |
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192 // An optional scanf-style format. This is parsed and stored but |
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193 // not currently used. |
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194 tree_expression *scanf_fmt; |
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195 |
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196 // This is a cache for evaluated versions of the qualifiers stored |
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197 // in x. |
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198 ColumnVector val; |
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199 |
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200 // A vector to hold using qualifiers. |
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201 tree_expression *x[4]; |
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202 }; |
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203 |
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204 class |
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205 subplot_style |
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206 { |
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207 public: |
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208 |
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209 subplot_style (const string& s = string (), |
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210 tree_expression *lt = 0, tree_expression *pt = 0) |
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211 : sp_style (s), sp_linetype (lt), sp_pointtype (pt) { } |
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212 |
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213 ~subplot_style (void); |
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214 |
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215 int print (ostrstream& plot_buf); |
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216 |
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217 int errorbars (void); |
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218 |
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219 string style (void) { return sp_style; } |
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220 |
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221 tree_expression *linetype (void) { return sp_linetype; } |
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222 |
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223 tree_expression *pointtype (void) { return sp_pointtype; } |
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224 |
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225 void accept (tree_walker& tw); |
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226 |
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227 private: |
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228 |
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229 // The style we are using: `lines', `points', etc. |
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230 string sp_style; |
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231 |
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232 // The number of the line type to use. |
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233 tree_expression *sp_linetype; |
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234 |
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235 // The number of the point type to use. |
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236 tree_expression *sp_pointtype; |
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237 }; |
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238 |
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239 class |
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240 subplot |
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241 { |
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242 public: |
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243 |
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244 subplot (tree_expression *data = 0) |
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245 : sp_plot_data (data), sp_using_clause (0), sp_title_clause (0), |
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246 sp_style_clause (0) { } |
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247 |
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248 subplot (subplot_using *u, tree_expression *t, subplot_style *s) |
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249 : sp_plot_data (0), sp_using_clause (u), sp_title_clause (t), |
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250 sp_style_clause (s) { } |
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251 |
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252 ~subplot (void); |
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253 |
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254 subplot *set_data (tree_expression *data) |
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255 { |
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256 sp_plot_data = data; |
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257 return this; |
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258 } |
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259 |
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260 octave_value extract_plot_data (int ndim, octave_value& data); |
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261 |
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262 int handle_plot_data (int ndim, ostrstream& plot_buf); |
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263 |
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264 int print (int ndim, ostrstream& plot_buf); |
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265 |
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266 tree_expression *plot_data (void) { return sp_plot_data; } |
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267 |
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268 subplot_using *using_clause (void) { return sp_using_clause; } |
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269 |
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270 tree_expression *title_clause (void) { return sp_title_clause; } |
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271 |
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272 subplot_style *style_clause (void) { return sp_style_clause; } |
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273 |
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274 void accept (tree_walker& tw); |
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275 |
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276 private: |
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277 |
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278 // The data to plot. |
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279 tree_expression *sp_plot_data; |
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280 |
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281 // The `using' option |
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282 subplot_using *sp_using_clause; |
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283 |
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284 // The `title' option |
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285 tree_expression *sp_title_clause; |
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286 |
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287 // The `style' option |
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288 subplot_style *sp_style_clause; |
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289 }; |
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290 |
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291 class |
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292 subplot_list : public SLList<subplot *> |
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293 { |
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294 public: |
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295 |
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296 subplot_list (void) |
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297 : SLList<subplot *> () { } |
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298 |
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299 subplot_list (subplot *t) |
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300 : SLList<subplot *> () { append (t); } |
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301 |
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302 ~subplot_list (void); |
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303 |
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304 int print (int ndim, ostrstream& plot_buf); |
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305 |
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306 void accept (tree_walker& tw); |
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307 }; |
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308 |
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309 extern string save_in_tmp_file (octave_value& t, int ndim = 2, |
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310 bool parametric = false); |
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311 |
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312 extern void mark_for_deletion (const string&); |
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313 |
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314 extern void cleanup_tmp_files (void); |
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315 |
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316 extern void close_plot_stream (void); |
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317 |
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318 extern void do_external_plotter_cd (const string& newdir); |
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319 |
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320 extern void symbols_of_pt_plot (void); |
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321 |
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322 #endif |
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323 |
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324 /* |
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325 ;;; Local Variables: *** |
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326 ;;; mode: C++ *** |
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327 ;;; End: *** |
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328 */ |
