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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 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 #include <iostream> |
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31 #include <strstream> |
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32 |
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33 class tree_expression; |
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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_axes; |
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40 class subplot; |
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41 class subplot_list; |
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42 |
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43 class tree_walker; |
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44 |
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45 #include <string> |
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46 |
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47 #include <SLList.h> |
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48 |
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49 #include "dColVector.h" |
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50 |
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51 #include "pt-cmd.h" |
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52 |
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53 class |
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54 tree_plot_command : public tree_command |
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55 { |
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56 public: |
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57 |
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58 tree_plot_command (subplot_list *plt = 0, plot_limits *rng = 0, int nd = 0) |
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59 : tree_command (), ndim (nd), range (rng), plot_list (plt) { } |
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60 |
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61 ~tree_plot_command (void); |
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62 |
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63 void eval (void); |
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64 |
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65 int num_dimensions (void) { return ndim; } |
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66 |
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67 plot_limits *limits (void) { return range; } |
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68 |
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69 subplot_list *subplots (void) { return plot_list; } |
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70 |
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71 void accept (tree_walker& tw); |
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72 |
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73 private: |
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74 |
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75 // The number of dimensions. 1 indicates a replot command. |
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76 int ndim; |
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77 |
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78 // The data ranges for the plot. |
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79 plot_limits *range; |
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80 |
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81 // The list of plots for this plot command. For example, the |
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82 // command "plot sin(x), cos(x)" has two subplot commands. |
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83 subplot_list *plot_list; |
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84 |
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85 // No copying! |
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86 |
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87 tree_plot_command (const tree_plot_command&); |
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88 |
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89 tree_plot_command& operator = (const tree_plot_command&); |
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90 }; |
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91 |
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92 class |
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93 plot_limits |
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94 { |
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95 public: |
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96 |
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97 plot_limits (plot_range *xlim = 0, plot_range *ylim = 0, |
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98 plot_range *zlim = 0) |
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99 : x_range (xlim), y_range (ylim), z_range (zlim) { } |
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100 |
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101 ~plot_limits (void); |
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102 |
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103 void print (int ndim, std::ostrstream& plot_buf); |
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104 |
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105 plot_range *x_limits (void) { return x_range; } |
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106 plot_range *y_limits (void) { return y_range; } |
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107 plot_range *z_limits (void) { return z_range; } |
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108 |
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109 void accept (tree_walker& tw); |
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110 |
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111 private: |
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112 |
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113 // Specified limits of the x, y, and z axes we should display for |
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114 // this plot. |
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115 plot_range *x_range; |
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116 plot_range *y_range; |
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117 plot_range *z_range; |
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118 |
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119 // No copying! |
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120 |
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121 plot_limits (const plot_limits&); |
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122 |
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123 plot_limits& operator = (const plot_limits&); |
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124 }; |
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125 |
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126 class |
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127 plot_range |
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128 { |
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129 public: |
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130 |
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131 plot_range (tree_expression *l = 0, tree_expression *u = 0) |
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132 : lower (l), upper (u) { } |
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133 |
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134 ~plot_range (void); |
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135 |
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136 void print (std::ostrstream& plot_buf); |
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137 |
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138 tree_expression *lower_bound (void) { return lower; } |
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139 |
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140 tree_expression *upper_bound (void) { return upper; } |
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141 |
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142 void accept (tree_walker& tw); |
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143 |
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144 private: |
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145 |
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146 // A range can specify a lower or upper bound or both. If neither |
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147 // is specified, the range to display is determined from the data. |
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148 tree_expression *lower; |
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149 tree_expression *upper; |
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150 |
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151 // No copying! |
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152 |
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153 plot_range (const plot_range&); |
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154 |
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155 plot_range& operator = (const plot_range&); |
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156 }; |
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157 |
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158 class |
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159 subplot_using |
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160 { |
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161 public: |
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162 |
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163 subplot_using (tree_expression *fmt = 0) |
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164 : qual_count (0), scanf_fmt (fmt), val (4, -1) |
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165 { |
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166 x[0] = x[1] = x[2] = x[3] = 0; |
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167 } |
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168 |
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169 ~subplot_using (void); |
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170 |
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171 subplot_using *set_format (tree_expression *fmt) |
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172 { |
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173 scanf_fmt = fmt; |
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174 return this; |
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175 } |
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176 |
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177 subplot_using *add_qualifier (tree_expression *t) |
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178 { |
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179 if (qual_count < 4) |
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180 x[qual_count] = t; |
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181 |
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182 qual_count++; |
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183 |
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184 return this; |
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185 } |
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186 |
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187 int eval (int ndim, int n_max); |
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188 |
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189 ColumnVector values (int ndim, int n_max = 0); |
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190 |
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191 int print (int ndim, int n_max, std::ostrstream& plot_buf); |
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192 |
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193 int qualifier_count (void) { return qual_count; } |
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194 |
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195 tree_expression **qualifiers (void) { return x; } |
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196 |
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197 tree_expression *scanf_format (void) { return scanf_fmt; } |
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198 |
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199 void accept (tree_walker& tw); |
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200 |
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201 private: |
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202 |
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203 // The number of using qualifiers (in "using 1:2", 1 and 2 are the |
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204 // qualifiers). |
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205 int qual_count; |
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206 |
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207 // An optional scanf-style format. This is parsed and stored but |
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208 // not currently used. |
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209 tree_expression *scanf_fmt; |
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210 |
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211 // This is a cache for evaluated versions of the qualifiers stored |
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212 // in x. |
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213 ColumnVector val; |
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214 |
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215 // A vector to hold using qualifiers. |
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216 tree_expression *x[4]; |
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217 |
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218 // No copying! |
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219 |
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220 subplot_using (const subplot_using&); |
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221 |
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222 subplot_using& operator = (const subplot_using&); |
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223 }; |
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224 |
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225 class |
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226 subplot_style |
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227 { |
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228 public: |
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229 |
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230 subplot_style (const std::string& s = std::string (), |
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231 tree_expression *lt = 0, tree_expression *pt = 0) |
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232 : sp_style (s), sp_linetype (lt), sp_pointtype (pt) { } |
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233 |
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234 ~subplot_style (void); |
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235 |
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236 int print (std::ostrstream& plot_buf); |
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237 |
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238 bool columns_ok (int nc); |
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239 |
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240 std::string style (void) { return sp_style; } |
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241 |
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242 tree_expression *linetype (void) { return sp_linetype; } |
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243 |
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244 tree_expression *pointtype (void) { return sp_pointtype; } |
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245 |
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246 void accept (tree_walker& tw); |
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247 |
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248 private: |
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249 |
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250 // The style we are using: `lines', `points', etc. |
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251 std::string sp_style; |
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252 |
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253 // The number of the line type to use. |
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254 tree_expression *sp_linetype; |
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255 |
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256 // The number of the point type to use. |
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257 tree_expression *sp_pointtype; |
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258 |
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259 // No copying! |
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260 |
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261 subplot_style (const subplot_style&); |
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262 |
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263 subplot_style& operator = (const subplot_style&); |
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264 }; |
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265 |
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266 class |
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267 subplot_axes |
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268 { |
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269 public: |
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270 |
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271 subplot_axes (const std::string& s = std::string ()) |
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272 : sp_axes (s) { } |
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273 |
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274 ~subplot_axes (void) { } |
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275 |
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276 int print (std::ostrstream& plot_buf); |
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277 |
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278 std::string axes (void) { return sp_axes; } |
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279 |
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280 void accept (tree_walker& tw); |
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281 |
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282 private: |
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283 |
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284 // The axes we are using: `x1y1', `x1y2', etc. |
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285 std::string sp_axes; |
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286 |
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287 // No copying! |
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288 |
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289 subplot_axes (const subplot_axes&); |
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290 |
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291 subplot_axes& operator = (const subplot_axes&); |
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292 }; |
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293 |
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294 class |
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295 subplot |
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296 { |
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297 public: |
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298 |
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299 subplot (tree_expression *data = 0) |
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300 : sp_plot_data (data), sp_using_clause (0), sp_title_clause (0), |
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301 sp_style_clause (0), sp_axes_clause (0) { } |
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302 |
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303 ~subplot (void); |
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304 |
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305 subplot *add_data (tree_expression *data) |
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306 { |
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307 sp_plot_data = data; |
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308 return this; |
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309 } |
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310 |
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311 subplot *add_clause (subplot_using *u) |
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312 { |
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313 if (! sp_using_clause) |
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314 { |
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315 sp_using_clause = u; |
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316 return this; |
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317 } |
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318 else |
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319 return 0; |
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320 } |
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321 |
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322 subplot *add_clause (tree_expression *t) |
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323 { |
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324 if (! sp_title_clause) |
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325 { |
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326 sp_title_clause = t; |
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327 return this; |
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328 } |
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329 else |
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330 return 0; |
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331 } |
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332 |
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333 subplot *add_clause (subplot_style *s) |
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334 { |
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335 if (! sp_style_clause) |
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336 { |
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337 sp_style_clause = s; |
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338 return this; |
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339 } |
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340 else |
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341 return 0; |
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342 } |
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343 |
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344 subplot *add_clause (subplot_axes *a) |
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345 { |
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346 if (! sp_axes_clause) |
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347 { |
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348 sp_axes_clause = a; |
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349 return this; |
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350 } |
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351 else |
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352 return 0; |
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353 } |
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354 |
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355 octave_value extract_plot_data (int ndim, octave_value& data); |
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356 |
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357 int handle_plot_data (int ndim, std::ostrstream& plot_buf); |
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358 |
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359 int print (int ndim, std::ostrstream& plot_buf); |
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360 |
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361 tree_expression *plot_data (void) { return sp_plot_data; } |
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362 |
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363 subplot_using *using_clause (void) { return sp_using_clause; } |
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364 |
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365 tree_expression *title_clause (void) { return sp_title_clause; } |
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366 |
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367 subplot_style *style_clause (void) { return sp_style_clause; } |
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368 |
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369 subplot_axes *axes_clause (void) { return sp_axes_clause; } |
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370 |
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371 void accept (tree_walker& tw); |
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372 |
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373 private: |
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374 |
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375 // The data to plot. |
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376 tree_expression *sp_plot_data; |
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377 |
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378 // The `using' option |
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379 subplot_using *sp_using_clause; |
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380 |
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381 // The `title' option |
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382 tree_expression *sp_title_clause; |
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383 |
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384 // The `style' option |
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385 subplot_style *sp_style_clause; |
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386 |
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387 // The `axes' option |
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388 subplot_axes *sp_axes_clause; |
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389 |
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390 // No copying! |
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391 |
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392 subplot (const subplot&); |
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393 |
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394 subplot& operator = (const subplot&); |
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395 }; |
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396 |
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397 class |
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398 subplot_list : public SLList<subplot *> |
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399 { |
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400 public: |
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401 |
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402 subplot_list (void) |
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403 : SLList<subplot *> () { } |
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404 |
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405 subplot_list (subplot *t) |
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406 : SLList<subplot *> () { append (t); } |
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407 |
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408 ~subplot_list (void); |
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409 |
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410 int print (int ndim, std::ostrstream& plot_buf); |
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411 |
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412 void accept (tree_walker& tw); |
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413 |
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414 private: |
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415 |
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416 // No copying! |
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417 |
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418 subplot_list (const subplot_list&); |
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419 |
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420 subplot_list& operator = (const subplot_list&); |
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421 }; |
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422 |
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423 extern std::string save_in_tmp_file (octave_value& t, int ndim = 2, |
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424 bool parametric = false); |
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425 |
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426 extern void mark_for_deletion (const std::string&); |
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524
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427 |
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428 extern void cleanup_tmp_files (void); |
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429 |
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430 extern void close_plot_stream (void); |
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431 |
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432 extern void do_external_plotter_cd (const std::string& newdir); |
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433 |
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434 #endif |
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435 |
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436 /* |
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437 ;;; Local Variables: *** |
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438 ;;; mode: C++ *** |
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439 ;;; End: *** |
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440 */ |
