Mercurial > octave-nkf
annotate scripts/geometry/trimesh.m @ 10549:95c3e38098bf
Untabify .m scripts
| author | Rik <code@nomad.inbox5.com> |
|---|---|
| date | Fri, 23 Apr 2010 11:28:50 -0700 |
| parents | 16f53d29049f |
| children | be55736a0783 |
| rev | line source |
|---|---|
| 9245 | 1 ## Copyright (C) 2007, 2008, 2009 David Bateman |
| 6823 | 2 ## |
| 3 ## This file is part of Octave. | |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 6823 | 9 ## |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 6823 | 18 |
| 19 ## -*- texinfo -*- | |
| 20 ## @deftypefn {Function File} {} trimesh (@var{tri}, @var{x}, @var{y}, @var{z}) | |
| 7650 | 21 ## @deftypefnx {Function File} {@var{h} =} trimesh (@dots{}) |
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22 ## Plot a triangular mesh in 3D. The variable @var{tri} is the triangular |
| 6832 | 23 ## meshing of the points @code{(@var{x}, @var{y})} which is returned |
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24 ## from @code{delaunay}. The variable @var{z} is value at the point |
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25 ## @code{(@var{x}, @var{y})}. The output argument @var{h} is the graphic |
| 6832 | 26 ## handle to the plot. |
| 6823 | 27 ## @seealso{triplot, delaunay3} |
| 28 ## @end deftypefn | |
| 29 | |
| 30 function h = trimesh (tri, x, y, z, varargin) | |
| 31 | |
| 32 if (nargin < 3) | |
| 6826 | 33 print_usage (); |
| 6823 | 34 endif |
| 35 | |
| 36 if (nargin == 3) | |
| 37 triplot (tri, x, y); | |
| 38 elseif (ischar (z)) | |
| 39 triplot (tri, x, y, z, varargin{:}); | |
| 40 else | |
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41 newplot (); |
| 6823 | 42 if (nargout > 0) |
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43 h = patch ("Vertices", [x(:), y(:), z(:)], "Faces", tri, |
| 10549 | 44 "FaceColor", "none", "EdgeColor", __next_line_color__(), |
| 45 varargin{:}); | |
| 6823 | 46 else |
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47 patch ("Vertices", [x(:), y(:), z(:)], "Faces", tri, |
| 10549 | 48 "FaceColor", "none", "EdgeColor", __next_line_color__(), |
| 49 varargin{:}); | |
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50 endif |
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51 |
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52 if (! ishold ()) |
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53 set (gca(), "view", [-37.5, 30], |
| 10549 | 54 "xgrid", "on", "ygrid", "on", "zgrid", "on"); |
| 6823 | 55 endif |
| 56 endif | |
| 57 endfunction | |
| 58 | |
| 59 %!demo | |
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60 %! N = 10; |
| 6823 | 61 %! rand ('state', 10) |
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62 %! x = 3 - 6 * rand (N, N); |
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63 %! y = 3 - 6 * rand (N, N); |
| 6823 | 64 %! z = peaks (x, y); |
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65 %! tri = delaunay (x(:), y(:)); |
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66 %! trimesh (tri, x(:), y(:), z(:)); |