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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 retval = __area__ (ax, x, y, bv, varargin) |
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22 |
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23 colors = [1, 0, 0; 0, 1, 0; 0, 0, 1; 1, 1, 0; 1, 0, 1; 0, 1, 1]; |
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24 |
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25 x = [x(1,:); x; x(end,:)]; |
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26 |
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27 y = cumsum ([[bv, ones(1, size (y, 2) - 1)]; y; |
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28 [bv, ones(1, size (y, 2) - 1)]], 2); |
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29 |
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30 retval = patch (ax, x(:,1), y(:,1), colors(1,:), varargin{:}); |
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31 |
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32 for i = 2:size(y,2) |
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33 tmp = patch (ax, [x(:,i); flipud(x(:,i))], |
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34 [y(:,i) ; flipud(y(:, i-1))], colors(i,:), varargin{:}); |
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35 |
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36 retval = [retval; tmp]; |
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37 endfor |
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38 |
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39 endfunction |
