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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 <string> |
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45 |
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46 #include <SLList.h> |
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47 |
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48 #include "dColVector.h" |
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49 |
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50 #include "idx-vector.h" |
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51 #include "pt-cmd.h" |
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52 #include "pt-exp.h" |
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53 |
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54 class |
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55 tree_plot_command : public tree_command |
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56 { |
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57 public: |
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58 |
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59 tree_plot_command (subplot_list *plt = 0, plot_limits *rng = 0, int nd = 0) |
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60 : tree_command (), ndim (nd), range (rng), plot_list (plt) { } |
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61 |
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62 ~tree_plot_command (void); |
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63 |
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64 void eval (void); |
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65 |
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66 int num_dimensions (void) { return ndim; } |
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67 |
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68 plot_limits *limits (void) { return range; } |
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69 |
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70 subplot_list *subplots (void) { return plot_list; } |
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71 |
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72 void accept (tree_walker& tw); |
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73 |
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74 private: |
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75 |
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76 // The number of dimensions. 1 indicates a replot command. |
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77 int ndim; |
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78 |
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79 // The data ranges for the plot. |
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80 plot_limits *range; |
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81 |
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82 // The list of plots for this plot command. For example, the |
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83 // command "plot sin(x), cos(x)" has two subplot commands. |
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84 subplot_list *plot_list; |
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85 }; |
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86 |
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87 class |
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88 plot_limits |
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89 { |
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90 public: |
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91 |
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92 plot_limits (plot_range *xlim = 0, plot_range *ylim = 0, |
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93 plot_range *zlim = 0) |
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94 : x_range (xlim), y_range (ylim), z_range (zlim) { } |
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95 |
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96 ~plot_limits (void); |
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97 |
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98 void print (int ndim, ostrstream& plot_buf); |
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99 |
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100 plot_range *x_limits (void) { return x_range; } |
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101 plot_range *y_limits (void) { return y_range; } |
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102 plot_range *z_limits (void) { return z_range; } |
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103 |
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104 void accept (tree_walker& tw); |
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105 |
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106 private: |
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107 |
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108 // Specified limits of the x, y, and z axes we should display for |
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109 // this plot. |
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110 plot_range *x_range; |
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111 plot_range *y_range; |
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112 plot_range *z_range; |
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113 }; |
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114 |
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115 class |
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116 plot_range |
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117 { |
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118 public: |
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119 |
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120 plot_range (tree_expression *l = 0, tree_expression *u = 0) |
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121 : lower (l), upper (u) { } |
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122 |
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123 ~plot_range (void); |
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124 |
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125 void print (ostrstream& plot_buf); |
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126 |
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127 tree_expression *lower_bound (void) { return lower; } |
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128 |
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129 tree_expression *upper_bound (void) { return upper; } |
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130 |
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131 void accept (tree_walker& tw); |
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132 |
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133 private: |
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134 |
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135 // A range can specify a lower or upper bound or both. If neither |
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136 // is specified, the range to display is determined from the data. |
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137 tree_expression *lower; |
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138 tree_expression *upper; |
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139 }; |
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140 |
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141 class |
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142 subplot_using |
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143 { |
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144 public: |
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145 |
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146 subplot_using (tree_expression *fmt = 0) |
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147 : qual_count (0), scanf_fmt (fmt), val (4, -1) |
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148 { |
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149 x[0] = x[1] = x[2] = x[3] = 0; |
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150 } |
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151 |
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152 ~subplot_using (void); |
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153 |
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154 subplot_using *set_format (tree_expression *fmt) |
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155 { |
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156 scanf_fmt = fmt; |
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157 return this; |
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158 } |
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159 |
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160 subplot_using *add_qualifier (tree_expression *t) |
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161 { |
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162 if (qual_count < 4) |
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163 x[qual_count] = t; |
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164 |
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165 qual_count++; |
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166 |
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167 return this; |
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168 } |
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169 |
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170 int eval (int ndim, int n_max); |
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171 |
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172 ColumnVector values (int ndim, int n_max = 0); |
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173 |
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174 int print (int ndim, int n_max, ostrstream& plot_buf); |
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175 |
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176 int qualifier_count (void) { return qual_count; } |
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177 |
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178 tree_expression **qualifiers (void) { return x; } |
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179 |
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180 tree_expression *scanf_format (void) { return scanf_fmt; } |
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181 |
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182 void accept (tree_walker& tw); |
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183 |
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184 private: |
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185 |
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186 // The number of using qualifiers (in "using 1:2", 1 and 2 are the |
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187 // qualifiers). |
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188 int qual_count; |
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189 |
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190 // An optional scanf-style format. This is parsed and stored but |
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191 // not currently used. |
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192 tree_expression *scanf_fmt; |
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193 |
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194 // This is a cache for evaluated versions of the qualifiers stored |
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195 // in x. |
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196 ColumnVector val; |
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197 |
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198 // A vector to hold using qualifiers. |
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199 tree_expression *x[4]; |
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200 }; |
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201 |
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202 class |
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203 subplot_style |
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204 { |
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205 public: |
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206 |
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207 subplot_style (const string& s = string (), |
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208 tree_expression *lt = 0, tree_expression *pt = 0) |
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209 : sp_style (s), sp_linetype (lt), sp_pointtype (pt) { } |
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210 |
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211 ~subplot_style (void); |
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212 |
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213 int print (ostrstream& plot_buf); |
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214 |
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215 int errorbars (void); |
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216 |
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217 string style (void) { return sp_style; } |
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218 |
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219 tree_expression *linetype (void) { return sp_linetype; } |
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220 |
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221 tree_expression *pointtype (void) { return sp_pointtype; } |
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222 |
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223 void accept (tree_walker& tw); |
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224 |
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225 private: |
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226 |
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227 // The style we are using: `lines', `points', etc. |
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228 string sp_style; |
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229 |
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230 // The number of the line type to use. |
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231 tree_expression *sp_linetype; |
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232 |
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233 // The number of the point type to use. |
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234 tree_expression *sp_pointtype; |
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235 }; |
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236 |
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237 class |
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238 subplot |
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239 { |
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240 public: |
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241 |
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242 subplot (tree_expression *data = 0) |
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243 : sp_plot_data (data), sp_using_clause (0), sp_title_clause (0), |
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244 sp_style_clause (0) { } |
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245 |
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246 subplot (subplot_using *u, tree_expression *t, subplot_style *s) |
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247 : sp_plot_data (0), sp_using_clause (u), sp_title_clause (t), |
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248 sp_style_clause (s) { } |
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249 |
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250 ~subplot (void); |
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251 |
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252 subplot *set_data (tree_expression *data) |
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253 { |
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254 sp_plot_data = data; |
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255 return this; |
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256 } |
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257 |
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258 octave_value extract_plot_data (int ndim, octave_value& data); |
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259 |
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260 int handle_plot_data (int ndim, ostrstream& plot_buf); |
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261 |
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262 int print (int ndim, ostrstream& plot_buf); |
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263 |
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264 tree_expression *plot_data (void) { return sp_plot_data; } |
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265 |
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266 subplot_using *using_clause (void) { return sp_using_clause; } |
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267 |
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268 tree_expression *title_clause (void) { return sp_title_clause; } |
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269 |
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270 subplot_style *style_clause (void) { return sp_style_clause; } |
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271 |
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272 void accept (tree_walker& tw); |
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273 |
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274 private: |
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275 |
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276 // The data to plot. |
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277 tree_expression *sp_plot_data; |
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278 |
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279 // The `using' option |
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280 subplot_using *sp_using_clause; |
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281 |
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282 // The `title' option |
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283 tree_expression *sp_title_clause; |
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284 |
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285 // The `style' option |
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286 subplot_style *sp_style_clause; |
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287 }; |
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288 |
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289 class |
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290 subplot_list : public SLList<subplot *> |
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291 { |
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292 public: |
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293 |
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294 subplot_list (void) |
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295 : SLList<subplot *> () { } |
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296 |
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297 subplot_list (subplot *t) |
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298 : SLList<subplot *> () { append (t); } |
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299 |
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300 ~subplot_list (void); |
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301 |
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302 int print (int ndim, ostrstream& plot_buf); |
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303 |
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304 void accept (tree_walker& tw); |
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305 }; |
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306 |
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307 extern string save_in_tmp_file (octave_value& t, int ndim = 2, |
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308 bool parametric = false); |
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309 |
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310 extern void mark_for_deletion (const string&); |
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311 |
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312 extern void cleanup_tmp_files (void); |
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313 |
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314 extern void close_plot_stream (void); |
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315 |
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316 extern void do_external_plotter_cd (const string& newdir); |
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317 |
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318 #endif |
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319 |
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320 /* |
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321 ;;; Local Variables: *** |
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322 ;;; mode: C++ *** |
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323 ;;; End: *** |
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324 */ |
