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1 ## Copyright (C) 2013 Mike Miller |
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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 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {} waterfall (@var{x}, @var{y}, @var{z}) |
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21 ## @deftypefnx {Function File} {} waterfall (@var{z}) |
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22 ## @deftypefnx {Function File} {@var{h} =} waterfall (@dots{}) |
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23 ## Plot a waterfall plot given matrices @var{x}, and @var{y} from |
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24 ## @code{meshgrid} and a matrix @var{z} corresponding to the @var{x} and |
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25 ## @var{y} coordinates of the mesh. If @var{x} and @var{y} are vectors, |
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26 ## then a typical vertex is (@var{x}(j), @var{y}(i), @var{z}(i,j)). Thus, |
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27 ## columns of @var{z} correspond to different @var{x} values and rows of |
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28 ## @var{z} correspond to different @var{y} values. |
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29 ## |
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30 ## The optional return value @var{h} is a graphics handle to the created |
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31 ## surface object. |
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32 ## @seealso{meshgrid, meshz, surf} |
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33 ## @end deftypefn |
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34 |
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35 ## Author: Mike Miller <mtmiller@ieee.org> |
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36 |
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37 function h = waterfall (varargin) |
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38 |
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39 tmp = meshz (varargin{:}); |
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40 |
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41 set (tmp, "meshstyle", "row"); |
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42 |
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43 ## The gnuplot toolkit does nothing with the meshstyle property currently. |
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44 toolkit = get (ancestor (tmp, "figure"), "__graphics_toolkit__"); |
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45 if (strcmp (toolkit, "gnuplot")) |
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46 warning ("waterfall: may not render correctly using toolkit '%s'", toolkit); |
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47 endif |
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48 |
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49 if (nargout > 0) |
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50 h = tmp; |
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51 endif |
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52 |
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53 endfunction |
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54 |
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55 |
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56 %!demo |
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57 %! clf; |
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58 %! colormap ('default'); |
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59 %! [~,~,Z] = peaks (); |
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60 %! waterfall (Z); |
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61 |
