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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 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {} ezplot3 (@var{fx}, @var{fy}, @var{fz}) |
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21 ## @deftypefnx {Function File} {} ezplot3 (@dots{}, @var{dom}) |
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22 ## @deftypefnx {Function File} {} ezplot3 (@dots{}, @var{n}) |
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23 ## @deftypefnx {Function File} {} ezplot3 (@var{h}, @dots{}) |
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24 ## @deftypefnx {Function File} {@var{h} =} ezplot3 (@dots{}) |
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25 ## |
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26 ## Plots in three-dimensions the curve defined parametrically. |
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27 ## @var{fx}, @var{fy}, and @var{fz} are strings, inline functions |
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28 ## or function handles with one arguments defining the function. By |
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29 ## default the plot is over the domain @code{-2*pi < @var{x} < 2*pi} |
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30 ## with 60 points. |
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31 ## |
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32 ## If @var{dom} is a two element vector, it represents the minimum and maximum |
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33 ## value of @var{t}. @var{n} is a scalar defining the number of points to use. |
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34 ## |
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35 ## The optional return value @var{h} provides a list of handles to the |
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36 ## the parts of the vector field (body, arrow and marker). |
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37 ## |
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38 ## @example |
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39 ## @group |
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40 ## fx = @@(t) cos (t); |
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41 ## fy = @@(t) sin (t); |
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42 ## fz = @@(t) t; |
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43 ## ezplot3 (fx, fy, fz, [0, 10*pi], 100); |
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44 ## @end group |
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45 ## @end example |
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46 ## |
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47 ## @seealso{plot3, ezplot, ezsurf, ezmesh} |
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48 ## @end deftypefn |
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49 |
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50 function retval = ezplot3 (varargin) |
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51 |
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52 [h, needusage] = __ezplot__ ("plot3", varargin{:}); |
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53 |
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54 if (needusage) |
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55 print_usage (); |
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56 endif |
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57 |
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58 if (nargout > 0) |
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59 retval = h; |
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60 endif |
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61 endfunction |
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62 |
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63 %!demo |
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64 %! fx = @(t) cos (t); |
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65 %! fy = @(t) sin (t); |
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66 %! fz = @(t) t; |
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67 %! ezplot3 (fx, fy, fz, [0, 10*pi], 100); |
