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1 ## Copyright (C) 1996, 1997 John W. Eaton |
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2 ## |
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3 ## This file is part of Octave. |
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4 ## |
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5 ## Octave is free software; you can redistribute it and/or modify it |
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6 ## under the terms of the GNU General Public License as published by |
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7 ## the Free Software Foundation; either version 2, or (at your option) |
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8 ## any later version. |
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9 ## |
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10 ## Octave is distributed in the hope that it will be useful, but |
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 ## General Public License for more details. |
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14 ## |
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15 ## You should have received a copy of the GNU General Public License |
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16 ## along with Octave; see the file COPYING. If not, write to the Free |
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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18 ## 02111-1307, USA. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} __pltopt1__ (@var{caller}, @var{opt}) |
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22 ## Really decode plot option strings. |
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23 ## @end deftypefn |
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24 ## @seealso{__pltopt__} |
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25 |
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26 ## Author: Rick Niles <niles@axp745.gsfc.nasa.gov> |
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27 ## Adapted-By: jwe |
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28 ## Maintainer: jwe |
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29 |
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30 function fmt = __pltopt1__ (caller, opt) |
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31 |
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32 set_color = 0; |
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33 set_symbol = 0; |
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34 set_lines = 0; |
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35 set_dots = 0; |
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36 set_points = 0; |
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37 set_impulses = 0; |
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38 set_steps = 0; |
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39 set_boxes = 0; |
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40 set_yerrbars = 0; |
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41 set_xerrbars = 0; |
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42 set_linestyle = "solid"; |
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43 |
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44 key_title = ""; |
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45 |
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46 more_opts = 1; |
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47 |
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48 WITH = "w"; |
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49 LINES = "l"; |
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50 LINESPOINTS = "linesp"; |
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51 BOXERRORBARS = "boxer"; |
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52 BOXES = "boxes"; |
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53 BOXXY = "boxxy"; |
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54 POINTS = "p"; |
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55 DOTS = "d"; |
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56 IMPULSES = "i"; |
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57 STEPS = "s"; |
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58 YERRORBARS = "yerr"; |
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59 XERRORBARS = "xerr"; |
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60 XYERRORBARS = "xyerr"; |
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61 TITLE = "title"; |
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62 |
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63 if (nargin != 2) |
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64 usage ("__pltopt1__ (opt)"); |
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65 endif |
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66 |
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67 if (! isstr (opt)) |
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68 error ("__pltopt1__: argument must be a string"); |
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69 endif |
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70 |
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71 while (more_opts) |
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72 |
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73 ## First get next char. |
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74 |
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75 if (max (size (opt)) > 1) |
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76 ## [char, opt] = sscanf (opt, "%c %s", "C"); |
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77 char = opt(1); |
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78 opt = opt(2:length(opt)); |
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79 else |
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80 char = opt; |
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81 more_opts = 0; |
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82 endif |
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83 |
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84 ## Now set flags based on char. |
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85 |
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86 if (strcmp (char, "-")) |
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87 if (set_lines) |
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88 set_linestyle = "dash"; |
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89 else |
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90 set_lines = 1; |
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91 endif |
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92 elseif (strcmp (char, ".")) |
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93 if (set_lines) |
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94 set_linestyle = "dashdot"; |
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95 else |
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96 set_dots = 1; |
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97 endif |
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98 elseif (strcmp (char, ":")) |
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99 set_lines = 1; |
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100 set_linestyle = "dot"; |
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101 elseif (strcmp (char, "@")) |
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102 set_points = 1; |
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103 elseif (strcmp (char, "^")) |
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104 set_impulses = 1; |
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105 elseif (strcmp (char, "L")) |
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106 set_steps = 1; |
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107 elseif (strcmp (char, "~")) |
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108 set_yerrbars = 1; |
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109 elseif (strcmp (char, ">")) |
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110 set_xerrbars = 1; |
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111 elseif (strcmp (char, "#")) |
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112 set_boxes = 1; |
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113 elseif (strcmp (char, "0") || strcmp (char, "1") ... |
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114 || strcmp (char, "2") || strcmp (char, "3") ... |
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115 || strcmp (char, "4") || strcmp (char, "5") ... |
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116 || strcmp (char, "6") || strcmp (char, "7") ... |
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117 || strcmp (char, "8") || strcmp (char, "9")) |
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118 if (set_color) |
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119 set_points = 1; |
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120 symbol = char; |
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121 set_symbol = 1; |
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122 else |
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123 color = char; |
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124 set_color = 1; |
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125 endif |
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126 elseif (strcmp (char, "r")) |
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127 set_color = 1; |
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128 color = "1"; |
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129 elseif (strcmp (char, "g")) |
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130 set_color = 1; |
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131 color = "2"; |
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132 elseif (strcmp (char, "b")) |
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133 set_color = 1; |
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134 color = "3"; |
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135 elseif (strcmp (char, "m")) |
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136 set_color = 1; |
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137 color = "4"; |
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138 elseif (strcmp (char, "c")) |
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139 set_color = 1; |
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140 color = "5"; |
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141 elseif (strcmp (char, "w") || strcmp (char, "k")) |
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142 set_color = 1; |
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143 color = "6"; |
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144 elseif (strcmp (char, "*")) |
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145 set_points = 1; |
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146 set_symbol = 1; |
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147 symbol = "6"; |
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148 elseif (strcmp (char, "+")) |
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149 set_points = 1; |
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150 set_symbol = 1; |
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151 symbol = "2"; |
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152 elseif (strcmp (char, "o")) |
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153 set_points = 1; |
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154 set_symbol = 1; |
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155 symbol = "1"; |
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156 elseif (strcmp (char, "x")) |
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157 set_points = 1; |
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158 set_symbol = 1; |
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159 symbol = "4"; |
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160 elseif (strcmp (char, ";")) # title mode. |
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161 working = 1; |
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162 while (working) |
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163 if (max (size (opt)) > 1) |
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164 char = opt(1); |
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165 opt = opt(2:length(opt)); |
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166 else |
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167 char = opt; |
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168 if (! strcmp (char, ";")) |
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169 error ("%s: unfinished key label", caller); |
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170 endif |
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171 more_opts = 0; |
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172 working = 0; |
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173 endif |
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174 if strcmp (char, ";") |
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175 working = 0; |
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176 else |
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177 if (isempty (key_title)) # needs this to avoid empty matrix warning. |
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178 key_title = char; |
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179 else |
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180 key_title = strcat (key_title, char); |
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181 endif |
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182 endif |
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183 endwhile |
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184 key_title = undo_string_escapes (key_title); |
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185 elseif (strcmp (char, " ")) |
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186 elseif (isempty(char)) |
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187 ## whitespace -- do nothing. |
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188 else |
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189 error ("%s: unrecognized format character: '%s'", caller, char); |
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190 endif |
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191 endwhile |
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192 |
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193 ## Now create format string. |
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194 |
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195 fmt = WITH; |
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196 |
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197 if (set_lines) |
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198 if (set_points) |
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199 fmt = strcat (fmt, " ", LINESPOINTS); |
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200 else |
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201 fmt = strcat (fmt, " ", LINES); |
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202 endif |
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203 elseif (set_boxes) |
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204 if (set_yerrbars && set_xerrbars) |
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205 fmt = strcat (fmt, " ", BOXXY); |
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206 elseif (set_yerrbars ) |
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207 fmt = strcat (fmt, " ", BOXERRORBARS); |
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208 else |
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209 fmt = strcat (fmt, " ", BOXES); |
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210 endif |
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211 elseif (set_points) |
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212 fmt = strcat (fmt, " ", POINTS); |
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213 elseif (set_dots) |
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214 fmt = strcat (fmt, " ", DOTS); |
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215 elseif (set_impulses) |
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216 fmt = strcat (fmt, " ", IMPULSES); |
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217 elseif (set_steps) |
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218 fmt = strcat (fmt, " ", STEPS); |
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219 elseif (set_yerrbars) |
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220 if(set_xerrbars) |
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221 fmt = strcat (fmt, " ", XYERRORBARS); |
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222 else |
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223 fmt = strcat (fmt, " ", YERRORBARS); |
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224 endif |
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225 elseif (set_xerrbars) |
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226 fmt = strcat (fmt, " ", XERRORBARS); |
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227 endif |
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228 |
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229 if (strcmp (fmt, WITH)) |
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230 if (strcmp (caller, "__errplot__")) |
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231 fmt = strcat (fmt, " ", YERRORBARS); |
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232 else |
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233 fmt = strcat (fmt, " ", LINES); |
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234 endif |
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235 endif |
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236 |
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237 if (set_color) |
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238 fmt = strcat (fmt, " ", color); |
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239 if (set_symbol) |
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240 fmt = strcat (fmt, " ", symbol); |
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241 endif |
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242 elseif (set_symbol) |
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243 fmt = strcat (fmt, " 1 ", symbol); |
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244 endif |
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245 |
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246 fmt = sprintf ("%s %s \"%s\" ", fmt, TITLE, key_title); |
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247 |
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248 endfunction |
