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1 ## Copyright (C) 2007, 2008, 2009 David Bateman |
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2 ## Copyright (C) 2010 Kai Habel |
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3 ## |
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4 ## This file is part of Octave. |
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5 ## |
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6 ## Octave is free software; you can redistribute it and/or modify it |
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7 ## under the terms of the GNU General Public License as published by |
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8 ## the Free Software Foundation; either version 3 of the License, or (at |
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9 ## your option) any later version. |
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10 ## |
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11 ## Octave is distributed in the hope that it will be useful, but |
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 ## General Public License for more details. |
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15 ## |
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16 ## You should have received a copy of the GNU General Public License |
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17 ## along with Octave; see the file COPYING. If not, see |
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18 ## <http://www.gnu.org/licenses/>. |
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19 |
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20 ## -*- texinfo -*- |
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21 ## @deftypefn {Function File} {} pie3 (@var{y}) |
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22 ## @deftypefnx {Function File} {} pie3 (@var{y}, @var{explode}) |
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23 ## @deftypefnx {Function File} {} pie3 (@dots{}, @var{labels}) |
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24 ## @deftypefnx {Function File} {} pie3 (@var{h}, @dots{}); |
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25 ## @deftypefnx {Function File} {@var{h} =} pie3 (@dots{}); |
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26 ## Drawa a 3D pie chart. |
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27 ## |
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28 ## Called with a single vector argument, produces a 3D pie chart of the |
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29 ## elements in @var{x}, with the size of the slice determined by percentage |
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30 ## size of the values of @var{x}. |
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31 ## |
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32 ## The variable @var{explode} is a vector of the same length as @var{x} that |
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33 ## if non zero 'explodes' the slice from the pie chart. |
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34 ## |
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35 ## If given @var{labels} is a cell array of strings of the same length as |
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36 ## @var{x}, giving the labels of each of the slices of the pie chart. |
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37 ## |
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38 ## The optional return value @var{h} provides a handle list to patch, surface |
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39 ## and text objects generating this plot. |
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40 ## |
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41 ## @seealso{pie, bar, stem} |
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42 ## @end deftypefn |
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43 |
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44 ## Very roughly based on pie.m from octave-forge whose author was |
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45 ## Daniel Heiserer <Daniel.heiserer@physik.tu-muenchen.de> |
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46 |
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47 function retval = pie3 (varargin) |
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48 |
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49 [h, varargin] = __plt_get_axis_arg__ ("pie", varargin{:}); |
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50 |
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51 if (nargin < 1) |
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52 print_usage (); |
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53 else |
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54 oldh = gca (); |
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55 unwind_protect |
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56 axes (h); |
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57 newplot (); |
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58 tmp = __pie__ ("pie3", h, varargin{:}); |
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59 unwind_protect_cleanup |
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60 axes (oldh); |
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61 end_unwind_protect |
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62 endif |
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63 |
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64 if (nargout > 0) |
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65 retval = tmp; |
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66 endif |
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67 |
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68 endfunction |
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69 |
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70 %!demo |
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71 %! pie3 ([5:-1:1], [0, 0, 1, 0, 0]); |
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72 %! colormap([1,0,0;0,1,0;0,0,1;1,1,0;1,0,1;0,1,1]); |
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73 |
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74 %!demo |
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75 %! pie3 ([3, 2, 1], [0, 0, 1], {"Cheddar", "Swiss", "Camembert"}); |
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76 %! colormap([1,0,0;0,1,0;0,0,1;1,1,0;1,0,1;0,1,1]); |
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77 %! axis ([-2,2,-2,2]); |
