Mercurial > hg > octave-lyh
annotate scripts/plot/mesh.m @ 16985:c9346014fed2
Validate inputs are real for mesh, meshc, meshz functions.
Rename internal helper variables for greater clarity.
* scripts/plot/mesh.m: Validate inputs are real. Use htmp for temporary handle.
* scripts/plot/meshc.m: Validate inputs are real. Use htmp for temporary handle.
* scripts/plot/meshz.m: Validate inputs are real. Use htmp for temporary handle.
Use cellfun to replace for loop in input validation. Use oldax for saved axes
handle.
author | Rik <rik@octave.org> |
---|---|
date | Sun, 14 Jul 2013 14:12:33 -0700 |
parents | ddac88d32d6a |
children | 328b579e08e9 |
rev | line source |
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maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
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1 ## Copyright (C) 1993-2012 John W. Eaton |
2313 | 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. | |
2313 | 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/>. | |
245 | 18 |
3368 | 19 ## -*- texinfo -*- |
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20 ## @deftypefn {Function File} {} mesh (@var{x}, @var{y}, @var{z}) |
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21 ## @deftypefnx {Function File} {} mesh (@var{z}) |
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22 ## @deftypefnx {Function File} {} mesh (@dots{}, @var{c}) |
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23 ## @deftypefnx {Function File} {} mesh (@var{hax}, @dots{}) |
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24 ## @deftypefnx {Function File} {@var{h} =} mesh (@dots{}) |
6154 | 25 ## Plot a mesh given matrices @var{x}, and @var{y} from @code{meshgrid} and |
3368 | 26 ## a matrix @var{z} corresponding to the @var{x} and @var{y} coordinates of |
27 ## the mesh. If @var{x} and @var{y} are vectors, then a typical vertex | |
28 ## is (@var{x}(j), @var{y}(i), @var{z}(i,j)). Thus, columns of @var{z} | |
29 ## correspond to different @var{x} values and rows of @var{z} correspond | |
30 ## to different @var{y} values. | |
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31 ## |
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32 ## The color of the mesh is derived from the @code{colormap} |
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33 ## and the value of @var{z}. Optionally the color of the mesh can be |
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34 ## specified independent of @var{z}, by adding a fourth matrix, @var{c}. |
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35 ## |
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36 ## The optional return value @var{h} is a graphics handle to the created |
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mesh.m: Correct typo in documentation
Rik <octave@nomad.inbox5.com>
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37 ## surface object. |
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38 ## @seealso{colormap, contour, meshgrid, surf} |
3368 | 39 ## @end deftypefn |
4 | 40 |
2314 | 41 ## Author: jwe |
42 | |
7109 | 43 function h = mesh (varargin) |
6172 | 44 |
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45 if (! all (cellfun ("isreal", varargin))) |
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46 error ("mesh: X, Y, Z, C arguments must be real"); |
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47 endif |
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48 |
6390 | 49 newplot (); |
50 | |
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51 htmp = surface (varargin{:}); |
7110 | 52 |
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53 ax = get (htmp, "parent"); |
7110 | 54 |
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55 set (htmp, "facecolor", "w"); |
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56 set (htmp, "edgecolor", "flat"); |
7110 | 57 |
7146 | 58 if (! ishold ()) |
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59 set (ax, "view", [-37.5, 30], |
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contour3.m: Grid on be default for 3D plots.
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60 "xgrid", "on", "ygrid", "on", "zgrid", "on"); |
7146 | 61 endif |
7110 | 62 |
6257 | 63 if (nargout > 0) |
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64 h = htmp; |
6154 | 65 endif |
66 | |
4 | 67 endfunction |
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68 |
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69 |
14411 | 70 %!demo |
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71 %! clf; |
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72 %! x = logspace (0,1,11); |
14411 | 73 %! z = x'*x; |
74 %! mesh (x, x, z, z.^2); | |
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75 %! xlabel 'X-axis'; |
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76 %! ylabel 'Y-axis'; |
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77 %! zlabel 'linear scale'; |
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78 |
14411 | 79 %!demo |
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80 %! clf; |
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81 %! x = logspace (0,1,11); |
14411 | 82 %! z = x'*x; |
83 %! mesh (x, x, z, z.^2); | |
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Make demos in plot m-files compatible with Matlab for running comparison script.
Rik <rik@octave.org>
parents:
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84 %! set (gca, 'zscale', 'log'); |
16985
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Validate inputs are real for mesh, meshc, meshz functions.
Rik <rik@octave.org>
parents:
16828
diff
changeset
|
85 %! xlabel 'X-axis'; |
c9346014fed2
Validate inputs are real for mesh, meshc, meshz functions.
Rik <rik@octave.org>
parents:
16828
diff
changeset
|
86 %! ylabel 'Y-axis'; |
16828
ddac88d32d6a
Make demos in plot m-files compatible with Matlab for running comparison script.
Rik <rik@octave.org>
parents:
14868
diff
changeset
|
87 %! zlabel 'log scale'; |
ddac88d32d6a
Make demos in plot m-files compatible with Matlab for running comparison script.
Rik <rik@octave.org>
parents:
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88 %! if (strcmp (get (gcf, '__graphics_toolkit__'), 'gnuplot')) |
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89 %! title ({'Gnuplot: mesh color is wrong', 'This a Gnuplot bug'}); |
14411 | 90 %! endif |
91 |