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annotate scripts/plot/__contour__.m @ 8289:ac7f334d9652

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Add contour group objects and the clabel function
author David Bateman <dbateman@free.fr>
date Thu, 30 Oct 2008 00:13:05 +0100
parents 73d6b71788c0
children be9b14945774
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ## Copyright (C) 2007 David Bateman
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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 3 of the License, or (at
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8 ## your option) 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, see
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17 ## <http://www.gnu.org/licenses/>.
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18
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19 ## Undocumented internal function.
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20
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21 function [c, hg] = __contour__ (varargin)
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22 ax = varargin{1};
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23 zlevel = varargin{2};
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24 filled = "off";
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25
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26 linespec.linestyle = "-";
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27 linespec.color = "auto";
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28 for i = 3 : nargin
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29 arg = varargin {i};
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30 if ((ischar (arg) || iscell (arg)))
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31 [linespec, valid] = __pltopt__ ("__contour__", arg, false);
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32 if (isempty (linespec.color))
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33 linespec.color = "auto";
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34 endif
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35 if (valid)
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36 have_line_spec = true;
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37 varargin(i) = [];
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38 break;
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39 endif
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40 endif
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41 endfor
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42
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43 opts = {};
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44 i = 3;
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45 while (i < length (varargin))
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46 if (ischar (varargin {i}))
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47 if (strcmpi (varargin{i}, "fill"))
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48 filled = varargin {i + 1};
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49 varargin(i:i+1) = [];
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50 elseif (strcmpi (varargin{i}, "linecolor"))
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51 linespec.color = varargin {i + 1};
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52 varargin(i:i+1) = [];
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53 else
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54 opts{end+1} = varargin{i};
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55 varargin(i) = [];
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56 opts{end+1} = varargin{i};
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57 varargin(i) = [];
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58 endif
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59 else
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60 i++;
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61 endif
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62 endwhile
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63
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64 if (length(varargin) < 5)
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65 z1 = varargin{3};
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66 x1 = 1 : rows(z1);
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67 y1 = 1 : columns(z1);
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68 else
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69 x1 = varargin{3};
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70 y1 = varargin{4};
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71 z1 = varargin{5};
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72 endif
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73 if (length (varargin) == 4 || length (varargin) == 6)
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74 vn = varargin {end};
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75 vnauto = false;
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76 else
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77 vnauto = true;
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78 vn = 10;
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79 endif
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80
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81 if (strcmpi (filled, "on"))
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82 if (isvector (x1) || isvector (y1))
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83 [x1, y1] = meshgrid (x1, y1);
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84 endif
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85 [nr, nc] = size (z1);
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86 x0 = prepad(x1, nc+1, 2 * x1(1, 1) - x1(1, 2), 2);
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87 x0 = postpad(x0, nc+2, 2 * x1(1, nc) - x1(1, nc - 1), 2);
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88 x0 = [x0(1, :); x0; x0(1, :)];
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89 y0 = prepad(y1, nr+1, 2 * y1(1, 1) - y1(2, 1), 1);
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90 y0 = postpad(y0, nr+2, 2 * y1(nr, 1) - y1(nr - 1, 1));
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91 y0 = [y0(:, 1), y0, y0(:, 1)];
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92 z0 = -Inf(nr+2, nc+2);
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93 z0(2:nr+1, 2:nc+1) = z1;
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94 [c, lev] = contourc (x0, y0, z0, vn);
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95 else
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96 [c, lev] = contourc (x1, y1, z1, vn);
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97 endif
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98
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99 hg = hggroup ();
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100 opts = __add_datasource__ ("__countour__", hg, {"x", "y", "z"}, opts{:});
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101
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102 addproperty ("xdata", hg, "data", x1);
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103 addproperty ("ydata", hg, "data", y1);
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104 addproperty ("zdata", hg, "data", z1);
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105 addproperty ("contourmatrix", hg, "data", c);
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106
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107 addlistener (hg, "xdata", @update_data);
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108 addlistener (hg, "ydata", @update_data);
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109 addlistener (hg, "zdata", @update_data);
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110 addlistener (hg, "contourmatrix", @update_data);
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111
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112 addproperty ("fill", hg, "radio", "on|{off}", filled);
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113
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114 ## The properties zlevel and zlevelmode don't exist in matlab, but
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115 ## allow the use of contourgroups with the contour3, meshc and surfc
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116 ## functions.
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117 if (isnumeric (zlevel))
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118 addproperty ("zlevelmode", hg, "radio", "{none}|auto|manual", "manual")
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119 addproperty ("zlevel", hg, "data", zlevel);
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120 else
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121 addproperty ("zlevelmode", hg, "radio", "{none}|auto|manual", zlevel)
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122 if (ischar (zlevel) && strcmpi (zlevel, "manual"))
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123 z = varargin{3};
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124 z = 2 * (min (z(:)) - max (z(:)));
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125 addproperty ("zlevel", hg, "data", z);
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126 else
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127 addproperty ("zlevel", hg, "data", 0.);
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128 endif
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129 endif
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130
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131 if (isscalar (vn))
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132 lvlstep = (max(z1(:)) - min(z1(:))) / vn;
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133 else
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134 lvlstep = (max(z1(:)) - min(z1(:))) / 10;
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135 endif
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136
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137 addproperty ("levellist", hg, "data", lev);
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138 addproperty ("levelstep", hg, "double", lvlstep);
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139 if (vnauto)
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140 addproperty ("levellistmode", hg, "radio", "{auto}|manual", "auto");
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141 addproperty ("levelstepmode", hg, "radio", "{auto}|manual", "auto");
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142 elseif (isscalar (vn))
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143 addproperty ("levellistmode", hg, "radio", "{auto}|manual", "auto");
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144 addproperty ("levelstepmode", hg, "radio", "{auto}|manual", "manual");
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145 else
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David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
146 addproperty ("levellistmode", hg, "radio", "{auto}|manual", "manual");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
147 addproperty ("levelstepmode", hg, "radio", "{auto}|manual", "auto");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
148 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
149
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
150 addproperty ("labelspacing", hg, "double", 144);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
151 addproperty ("textlist", hg, "data", lev);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
152 addproperty ("textlistmode", hg, "radio", "{auto}|manual", "auto");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
153 addproperty ("textstep", hg, "double", lvlstep);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
154 addproperty ("textstepmode", hg, "radio", "{auto}|manual", "auto");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
155 addproperty ("showtext", hg, "radio", "on|{off}", "off");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
156
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
157 addproperty ("linecolor", hg, "color", linespec.color, "{auto}|none");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
158 addproperty ("linestyle", hg, "linelinestyle", linespec.linestyle);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
159 addproperty ("linewidth", hg, "linelinewidth", 0.5);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
160
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
161 addlistener (hg, "fill", @update_data);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
162
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
163 addlistener (hg, "zlevelmode", @update_zlevel);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
164 addlistener (hg, "zlevel", @update_zlevel);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
165
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
166 addlistener (hg, "levellist", @update_data);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
167 addlistener (hg, "levelstep", @update_data);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
168 addlistener (hg, "levellistmode", @update_data);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
169 addlistener (hg, "levelstepmode", @update_data);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
170
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
171 addlistener (hg, "labelspacing", @update_text);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
172 addlistener (hg, "textlist", @update_text);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
173 addlistener (hg, "textlistmode", @update_text);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
174 addlistener (hg, "textstep", @update_text);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
175 addlistener (hg, "textstepmode", @update_text);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
176 addlistener (hg, "showtext", @update_text);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
177
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
178 addlistener (hg, "linecolor", @update_line);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
179 addlistener (hg, "linestyle", @update_line);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
180 addlistener (hg, "linewidth", @update_line);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
181
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
182 add_patch_children (hg);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
183
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
184 if (!isempty (opts))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
185 set (hg, opts{:});
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
186 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
187 endfunction
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
188
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
189 function add_patch_children (hg)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
190 c = get (hg, "contourmatrix");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
191 lev = get (hg, "levellist");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
192 fill = get (hg, "fill");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
193 z = get (hg, "zlevel");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
194 zmode = get (hg, "zlevelmode");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
195 lc = get (hg, "linecolor");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
196 lw = get (hg, "linewidth");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
197 ls = get (hg, "linestyle");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
198 filled = get (hg, "fill");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
199
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
200 if (strcmpi (lc, "auto"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
201 lc = "flat";
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
202 endif
7170
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jwe
parents:
diff changeset
203
8289
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
204 if (strcmpi (filled, "on"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
205 if (diff (lev) < 10*eps)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
206 lvl_eps = 1e-6;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
207 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
208 lvl_eps = min (diff (lev)) / 1000.0;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
209 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
210
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
211 ## Decode contourc output format.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
212 i1 = 1;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
213 ncont = 0;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
214 while (i1 < columns (c))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
215 ncont++;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
216 cont_lev(ncont) = c(1, i1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
217 cont_len(ncont) = c(2, i1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
218 cont_idx(ncont) = i1+1;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
219
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
220 ii = i1+1:i1+cont_len(ncont);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
221 cur_cont = c(:, ii);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
222 startidx = ii(1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
223 stopidx = ii(end);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
224 cont_area(ncont) = polyarea (c(1, ii), c(2, ii));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
225 i1 += c(2, i1) + 1;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
226 endwhile
7170
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jwe
parents:
diff changeset
227
8289
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
228 ## Handle for each level the case where we have (a) hole(s) in a patch.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
229 ## Those are to be filled with the color of level below or with the
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
230 ## background colour.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
231 for k = 1:numel (lev)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
232 lvl_idx = find (abs (cont_lev - lev(k)) < lvl_eps);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
233 len = numel (lvl_idx);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
234 if (len > 1)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
235 ## mark = logical(zeros(size(lvl_idx)));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
236 mark = false (size (lvl_idx));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
237 a = 1;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
238 while (a < len)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
239 ## take 1st patch
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
240 b = a + 1;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
241 pa_idx = lvl_idx(a);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
242 ## get pointer to contour start, and contour length
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
243 curr_ct_idx = cont_idx(pa_idx);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
244 curr_ct_len = cont_len(pa_idx);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
245 ## get contour
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
246 curr_ct = c(:, curr_ct_idx:curr_ct_idx+curr_ct_len-1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
247 b_vec = (a+1):len;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
248 next_ct_pt_vec = c(:, cont_idx(lvl_idx(b_vec)));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
249 in = inpolygon (next_ct_pt_vec(1,:), next_ct_pt_vec(2,:),
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
250 curr_ct(1, :), curr_ct(2, :));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
251 mark(b_vec(in)) = !mark(b_vec(in));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
252 a++;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
253 endwhile
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
254 if (numel (mark) > 0)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
255 ## All marked contours describe a hole in a larger contour of
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
256 ## the same level and must be filled with colour of level below.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
257 ma_idx = lvl_idx(mark);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
258 if (k > 1)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
259 ## Find color of level below.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
260 tmp = find(abs(cont_lev - lev(k - 1)) < lvl_eps);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
261 lvl_bel_idx = tmp(1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
262 ## Set color of patches found.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
263 cont_lev(ma_idx) = cont_lev(lvl_bel_idx);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
264 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
265 ## Set lowest level contour to NaN.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
266 cont_lev(ma_idx) = NaN;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
267 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
268 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
269 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
270 endfor
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
271
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
272 ## The algorithm can create patches with the size of the plotting
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
273 ## area, we would like to draw only the patch with the highest level.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
274 del_idx = [];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
275 max_idx = find (cont_area == max (cont_area));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
276 if (numel (max_idx) > 1)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
277 ## delete double entries
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
278 del_idx = max_idx(1:end-1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
279 cont_area(del_idx) = cont_lev(del_idx) = [];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
280 cont_len(del_idx) = cont_idx(del_idx) = [];
7175
5ff4da7bd2e7 [project @ 2007-11-14 20:36:48 by jwe]
jwe
parents: 7170
diff changeset
281 endif
5ff4da7bd2e7 [project @ 2007-11-14 20:36:48 by jwe]
jwe
parents: 7170
diff changeset
282
8289
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
283 ## Now we have everything together and can start plotting the patches
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
284 ## beginning with largest area.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
285 [tmp, svec] = sort (cont_area);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
286 len = ncont - numel (del_idx);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
287 h = [];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
288 for n = 1:len
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
289 idx = svec(n);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
290 ctmp = c(:, cont_idx(idx):cont_idx(idx) + cont_len(idx) - 1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
291 if (all (ctmp(:,1) == ctmp(:,end)))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
292 ctmp(:, end) = [];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
293 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
294 ## Special case unclosed contours
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
295 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
296 h = [h; patch(ctmp(1, :), ctmp(2, :), cont_lev(idx), "edgecolor", lc,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
297 "linestyle", ls, "linewidth", lw, "parent", hg)];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
298 endfor
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
299
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
300 if (min (lev) == max (lev))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
301 set (gca (), "clim", [min(lev)-1, max(lev)+1]);
7170
9f38c6293317 [project @ 2007-11-13 17:34:33 by jwe]
jwe
parents:
diff changeset
302 else
8289
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
303 set (gca(), "clim", [min(lev), max(lev)]);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
304 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
305
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
306 set (gca (), "layer", "top");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
307 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
308 ## Decode contourc output format.
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
309 i1 = 1;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
310 h = [];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
311 while (i1 < length (c))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
312 clev = c(1,i1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
313 clen = c(2,i1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
314
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
315 if (all (c(:,i1+1) == c(:,i1+clen)))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
316 p = c(:, i1+1:i1+clen-1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
317 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
318 p = [c(:, i1+1:i1+clen), NaN(2, 1)];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
319 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
320
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
321 switch (zmode)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
322 case "none"
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
323 h = [h; patch(p(1,:), p(2,:), "facecolor", "none",
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
324 "edgecolor", lc, "linestyle", ls, "linewidth", lw,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
325 "cdata", clev, "parent", hg)];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
326 case "auto"
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
327 h = [h; patch(p(1,:), p(2,:), clev * ones (1, columns (p)),
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
328 "facecolor", "none", "edgecolor", lc,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
329 "linestyle", ls, "linewidth", lw, "cdata", clev,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
330 "parent", hg)];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
331 otherwise
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
332 h = [h; patch(p(1,:), p(2,:), z * ones (1, columns (p)),
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
333 "facecolor", "none", "edgecolor", lc,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
334 "linestyle", ls, "linewidth", lw, "cdata", clev,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
335 "parent", hg)];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
336 endswitch
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
337 i1 += clen+1;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
338 endwhile
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
339 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
340
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
341 endfunction
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
342
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
343 function update_zlevel (h, d)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
344 z = get (h, "zlevel");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
345 zmode = get (h, "zlevelmode");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
346 kids = get (h, "children");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
347
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
348 switch (zmode)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
349 case "none"
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
350 set (kids, "zdata", []);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
351 case "auto"
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
352 for i = 1 : length (kids)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
353 set (kids(i), "zdata", get (kids (i), "cdata") .*
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
354 ones (size (get (kids (i), "xdata"))));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
355 endfor
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
356 otherwise
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
357 for i = 1 : length (kids)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
358 set (kids(i), "zdata", z .* ones (size (get (kids (i), "xdata"))));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
359 endfor
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
360 endswitch
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
361 endfunction
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
362
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
363 function update_line (h, d)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
364 lc = get (h, "linecolor");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
365 if (strcmpi (lc, "auto"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
366 lc = "flat";
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
367 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
368 set (findobj (h, "type", "patch"), "edgecolor", lc,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
369 "linewidth", get (h, "linewidth"), "linestyle", get (h, "linestyle"));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
370 endfunction
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
371
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
372 function update_data (h, d)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
373 persistent recursive = false;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
374
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
375 if (!recursive)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
376 recursive = true;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
377
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
378 delete (get (h, "children"));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
379
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
380 if (strcmpi (get (h, "levellistmode"), "manual"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
381 lvl = get (h, "levellist");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
382 elseif (strcmpi (get (h, "levelstepmode"), "manual"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
383 z = get (h, "zdata");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
384 lvl = ceil ((max(z(:)) - min (z(:)) ./ get (h, "levelstep")));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
385 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
386 lvl = 10;
7170
9f38c6293317 [project @ 2007-11-13 17:34:33 by jwe]
jwe
parents:
diff changeset
387 endif
8289
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
388
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
389 if (strcmpi (get (h, "fill"), "on"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
390 X = get (h, "xdata");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
391 Y = get (h, "ydata");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
392 Z = get (h, "zdata");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
393 if (isvector (X) || isvector (Y))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
394 [X, Y] = meshgrid (X, Y);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
395 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
396 [nr, nc] = size (Z);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
397 X0 = prepad(X, nc+1, 2 * X(1, 1) - X(1, 2), 2);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
398 X0 = postpad(X0, nc+2, 2 * X(1, nc) - X(1, nc - 1), 2);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
399 X0 = [X0(1, :); X0; X0(1, :)];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
400 Y0 = prepad(Y, nr+1, 2 * Y(1, 1) - Y(2, 1), 1);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
401 Y0 = postpad(Y0, nr+2, 2 * Y(nr, 1) - Y(nr - 1, 1));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
402 Y0 = [Y0(:, 1), Y0, Y0(:, 1)];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
403 Z0 = -Inf(nr+2, nc+2);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
404 Z0(2:nr+1, 2:nc+1) = Z;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
405 [c, lev] = contourc (X0, Y0, Z0, lvl);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
406 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
407 [c, lev] = contourc (get (h, "xdata"), get (h, "ydata"),
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
408 get (h, "zdata"), lvl);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
409 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
410 set (h, "contourmatrix", c);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
411
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
412 if (strcmpi (get (h, "levellistmode"), "manual"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
413 ## Do nothing
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
414 elseif (strcmpi (get (h, "levelstepmode"), "manual"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
415 set (h, "levellist", lev);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
416 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
417 set (h, "levellist", lev);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
418 z = get (h, "zdata");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
419 lvlstep = (max(z(:)) - min(z(:))) / 10;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
420 set (h, "levelstep", lvlstep);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
421 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
422
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
423 add_patch_children (h);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
424 update_text (h, d);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
425 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
426
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
427 recursive = false;
7170
9f38c6293317 [project @ 2007-11-13 17:34:33 by jwe]
jwe
parents:
diff changeset
428 endfunction
8289
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
429
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
430 function update_text (h, d)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
431 persistent recursive = false;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
432
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
433 if (!recursive)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
434 recursive = true;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
435
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
436 delete (findobj (h, "type", "text"));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
437
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
438 if (strcmpi (get (h, "textlistmode"), "manual"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
439 lvl = get (h, "textlist");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
440 elseif (strcmpi (get (h, "textstepmode"), "manual"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
441 lev = get (h, "levellist");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
442
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
443 if (diff (lev) < 10*eps)
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
444 lvl_eps = 1e-6;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
445 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
446 lvl_eps = min (abs (diff (lev))) / 1000.0;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
447 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
448
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
449 stp = get (h, "textstep");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
450 t = [0, floor(cumsum(diff (lev)) / (abs(stp) - lvl_eps))];
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
451 lvl = lev([true, t(1:end-1) != t(2:end)]);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
452 set (h, "textlist", lvl);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
453 else
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
454 lvl = get (h, "levellist");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
455 set (h, "textlist", lvl, "textstep", get (h, "levelstep"));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
456 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
457
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
458 if (strcmpi (get (h, "showtext"), "on"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
459 switch (get (h, "zlevelmode"))
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
460 case "manual"
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
461 __clabel__ (get (h, "contourmatrix"), lvl, h,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
462 get (h, "labelspacing"), get (h, "zlevel"));
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
463 case "auto"
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
464 __clabel__ (get (h, "contourmatrix"), lvl, h,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
465 get (h, "labelspacing"), "auto");
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
466 otherwise
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
467 __clabel__ (get (h, "contourmatrix"), lvl, h,
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
468 get (h, "labelspacing"), []);
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
469 endswitch
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
470 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
471 endif
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
472
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
473 recursive = false;
ac7f334d9652 Add contour group objects and the clabel function
David Bateman <dbateman@free.fr>
parents: 8190
diff changeset
474 endfunction