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