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annotate scripts/plot/util/private/__gnuplot_draw_figure__.m @ 30564:796f54d4ddbf stable

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update Octave Project Developers copyright for the new year In files that have the "Octave Project Developers" copyright notice, update for 2021. In all .txi and .texi files except gpl.txi and gpl.texi in the doc/liboctave and doc/interpreter directories, change the copyright to "Octave Project Developers", the same as used for other source files. Update copyright notices for 2022 (not done since 2019). For gpl.txi and gpl.texi, change the copyright notice to be "Free Software Foundation, Inc." and leave the date at 2007 only because this file only contains the text of the GPL, not anything created by the Octave Project Developers. Add Paul Thomas to contributors.in.
author John W. Eaton <jwe@octave.org>
date Tue, 28 Dec 2021 18:22:40 -0500
parents 0a5b15007766
children 597f3ee61a48
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1 ########################################################################
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2 ##
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3 ## Copyright (C) 2005-2022 The Octave Project Developers
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4 ##
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5 ## See the file COPYRIGHT.md in the top-level directory of this
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6 ## distribution or <https://octave.org/copyright/>.
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7 ##
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8 ## This file is part of Octave.
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9 ##
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10 ## Octave is free software: you can redistribute it and/or modify it
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11 ## under the terms of the GNU General Public License as published by
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12 ## the Free Software Foundation, either version 3 of the License, or
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13 ## (at your option) any later version.
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14 ##
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15 ## Octave is distributed in the hope that it will be useful, but
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16 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 ## GNU General Public License for more details.
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19 ##
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20 ## You should have received a copy of the GNU General Public License
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21 ## along with Octave; see the file COPYING. If not, see
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22 ## <https://www.gnu.org/licenses/>.
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23 ##
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24 ########################################################################
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25
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26 ## -*- texinfo -*-
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27 ## @deftypefn {} {} __gnuplot_draw_figure__ (@var{h}, @var{plot_stream}, @var{enhanced})
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28 ## Undocumented internal function.
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29 ## @end deftypefn
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30
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31 function __gnuplot_draw_figure__ (h, plot_stream, enhanced)
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32
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33 htype = get (h, "type");
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34 if (strcmp (htype, "figure"))
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35 ## Get complete list of children.
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36 kids = allchild (h);
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37 nkids = length (kids);
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38
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39 if (nkids > 0)
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40 fputs (plot_stream, "\nreset;\n");
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41 fputs (plot_stream, "set autoscale keepfix;\n");
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42 fputs (plot_stream, "set origin 0, 0\n");
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43 fputs (plot_stream, "set size 1, 1\n");
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44 bg = get (h, "color");
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45 if (isnumeric (bg))
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46 fprintf (plot_stream, ['if (GPVAL_TERM eq "qt") set obj 1 rectangle from screen 0,0 to screen 1,1 behind fc rgb "#%02x%02x%02x" fs solid noborder;' "\n"], round (255 * bg));
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47 bg_is_set = true;
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48 else
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49 bg_is_set = false;
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50 endif
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51 fg_was_set = false;
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52
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53 for i = nkids:-1:1
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54 type = get (kids(i), "type");
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55 switch (type)
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56 case "axes"
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57 if (strcmp (get (kids(i), "tag"), "legend"))
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58 ## This is so ugly. If there was a way of getting
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59 ## gnuplot to give us the text extents of strings
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60 ## then we could get rid of this mess.
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61 lh = getappdata (kids(i), "__axes_handle__");
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62 if (isscalar (lh))
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63 ## We have a legend with a single parent. It'll be handled
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64 ## below as a gnuplot key to the axis it corresponds to.
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65 continue;
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66 else
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67 ca = lh(1);
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68 ## Rely upon listener to convert axes position
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69 ## to "normalized" units.
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70 legend_axes_units = get (kids(i), "units");
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71 legend_axes_position = get (kids(i), "position");
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72 legend_axes_outerposition = get (kids(i), "outerposition");
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73 legend_axes_box = get (kids(i), "box");
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74 legend_axes_ylim = get (kids(i), "ylim");
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75 orig_axes_units = get (ca, "units");
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76 hlgnd = get (kids(i));
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77
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78 unwind_protect
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79 set (ca, "units", "normalized");
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80 set (kids(i), "units", "normalized", "box", "off",
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81 "ylim", [-2, -1], "position", get (ca(1), "position"),
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82 "outerposition", get (ca(1), "outerposition"));
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83
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84 ## Create a new set of lines with the appropriate
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85 ## displaynames, etc
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86 toberm = [];
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87 hobj = get (kids(i), "children");
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88 for j = numel (hobj) : -1 : 1
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89 if (! strcmp (get (hobj(j), "type"), "text"))
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90 continue;
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91 endif
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92 displayname = get (hobj(j), "string");
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93 ll = [];
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94 lm = [];
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95 for k = numel (hobj) : -1 : 1
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96 if (! strcmp (get (hobj(k), "type"), "line"))
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97 continue;
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98 endif
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99 if (getappdata (hobj(j), "handle")
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100 != getappdata (hobj(k), "handle"))
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101 continue;
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102 endif
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103 if (! strcmp (get (hobj(k), "linestyle"), "none"))
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104 ll = hobj(k);
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105 endif
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106 if (! strcmp (get (hobj(k), "marker"), "none"))
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107 lm = hobj(k);
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108 endif
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109 endfor
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110
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111 if (! isempty (ll))
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112 if (! isempty (lm))
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113 toberm = [toberm, line("xdata",[0,0],"ydata",[0,0], "color", get(lm,"color"), "linestyle", get(ll,"linestyle"), "marker", get(lm,"marker"), "markeredgecolor", get(lm,"markeredgecolor"), "markerfacecolor", get(lm,"markerfacecolor"), "markersize", get (lm, "markersize"), "displayname", displayname, "parent", kids(i))];
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114 else
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115 toberm = [toberm, line("xdata",[0,0],"ydata",[0,0], "color", get(ll,"color"), "linestyle", get(ll,"linestyle"), "marker", "none", "displayname", displayname, "parent", kids(i))];
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116 endif
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117 elseif (! isempty (lm))
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118 toberm = [toberm, line("xdata",[0,0],"ydata",[0,0], "color", get(lm,"color"), "linestyle", "none", "marker", get(lm,"marker"), "markeredgecolor", get(lm,"markeredgecolor"), "markerfacecolor", get(lm,"markerfacecolor"), "markersize", get (lm, "markersize"), "displayname", displayname, "parent", kids(i))];
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119 endif
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120 endfor
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121 if (bg_is_set)
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122 fprintf (plot_stream, ['set border linecolor rgb "#%02x%02x%02x"' "\n"], round (255 * (1 - bg)));
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123 endif
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124 __gnuplot_draw_axes__ (kids(i), plot_stream, enhanced,
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125 bg_is_set, false, hlgnd);
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126 unwind_protect_cleanup
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127 ## Return axes "units" and "position" back to
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128 ## their original values.
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129 set (ca, "units", orig_axes_units);
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130 set (kids(i), "units", legend_axes_units,
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131 "box", legend_axes_box,
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132 "ylim", legend_axes_ylim,
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133 "position", legend_axes_position,
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134 "outerposition", legend_axes_outerposition);
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135 delete (toberm);
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136 bg_is_set = false;
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137 end_unwind_protect
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138 endif
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139 else
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140 ## Rely upon listener to convert axes position
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141 ## to "normalized" units.
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142 orig_axes_units = get (kids(i), "units");
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143 orig_axes_position = get (kids(i), "position");
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144 unwind_protect
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145 set (kids(i), "units", "normalized");
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146 fg = get (kids(i), "color");
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147 if (isnumeric (fg) && strcmp (get (kids(i), "visible"), "on"))
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148 fprintf (plot_stream, ['set obj 2 rectangle from graph 0,0 to graph 1,1 behind fc rgb "#%02x%02x%02x" fs solid noborder' "\n"], round (255 * fg));
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149 fg_is_set = true;
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150 fg_was_set = true;
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151 elseif (fg_was_set)
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152 fprintf (plot_stream, "unset obj 2\n");
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153 fg_is_set = false;
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154 fg_was_set = false;
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155 else
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156 fg_is_set = false;
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157 endif
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158 if (bg_is_set)
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159 fprintf (plot_stream, ['set border linecolor rgb "#%02x%02x%02x"' "\n"], round (255 * (1 - bg)));
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160 endif
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161 ## Find if this axes has an associated legend axes and pass it
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162 ## to __gnuplot_draw_axes__
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163 try
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164 hlegend = get (kids(i), "__legend_handle__");
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165 hlegend = get (hlegend);
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166 catch
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167 hlegend = [];
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168 end_try_catch
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169 __gnuplot_draw_axes__ (kids(i), plot_stream, enhanced,
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170 bg_is_set, fg_is_set, hlegend);
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171 unwind_protect_cleanup
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172 ## Return axes "units" and "position" back to
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173 ## their original values.
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174 set (kids(i), "units", orig_axes_units,
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175 "position", orig_axes_position);
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176 bg_is_set = false;
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177 fg_is_set = false;
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178 end_unwind_protect
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179 endif
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180 case {"uimenu", "uicontextmenu", "uitoolbar"}
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181 ## ignore uimenu objects
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182 kids(i) = [];
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183 otherwise
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184 error ("__gnuplot_draw_figure__: unknown object class, %s", type);
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185 endswitch
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186 endfor
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187 if (isempty (kids))
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188 fputs (plot_stream, "\nreset; clear;\n");
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189 fflush (plot_stream);
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190 else
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191 fputs (plot_stream, "\nunset multiplot;\n");
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192 endif
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193 else
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194 fputs (plot_stream, "\nreset; clear;\n");
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195 fflush (plot_stream);
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196 endif
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197 else
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198 error ("__gnuplot_draw_figure__: expecting figure object, found '%s'",
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199 htype);
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200 endif
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201
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
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202 endfunction