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Add mesh() demos. * mesh.m: Add demos for linear and log zscale. The log scale demo reveals a bug present in Gnuplot 4.4.x.
author Ben Abbott <bpabbott@mac.com>
date Sat, 25 Feb 2012 17:06:44 -0500
parents 7277fe922e99
children 1cbdd14711c5
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72c96de7a403 maint: update copyright notices for 2012
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1 ## Copyright (C) 2007-2012 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} {} scatter3 (@var{x}, @var{y}, @var{z}, @var{s}, @var{c})
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21 ## @deftypefnx {Function File} {} scatter3 (@dots{}, "filled")
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22 ## @deftypefnx {Function File} {} scatter3 (@dots{}, @var{style})
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23 ## @deftypefnx {Function File} {} scatter3 (@dots{}, @var{prop}, @var{val})
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24 ## @deftypefnx {Function File} {} scatter3 (@var{h}, @dots{})
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25 ## @deftypefnx {Function File} {@var{h} =} scatter3 (@dots{})
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26 ##
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27 ## Plot a scatter plot of the data in 3D@. A marker is plotted at each point
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28 ## defined by the points in the vectors @var{x}, @var{y} and @var{z}. The size
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29 ## of the markers used is determined by @var{s}, which can be a scalar or
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30 ## a vector of the same length of @var{x}, @var{y} and @var{z}. If @var{s} is
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31 ## not given or is an empty matrix, then the default value of 8 points is used.
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32 ##
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33 ## The color of the markers is determined by @var{c}, which can be a string
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34 ## defining a fixed color; a 3-element vector giving the red, green, and blue
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35 ## components of the color; a vector of the same length as @var{x} that gives
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36 ## a scaled index into the current colormap; or a @var{n}-by-3 matrix defining
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37 ## the colors of each of the markers individually.
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38 ##
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39 ## The marker to use can be changed with the @var{style} argument, that is a
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40 ## string defining a marker in the same manner as the @code{plot} command.
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41 ## If the argument "filled" is given then the markers as filled. All
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42 ## additional arguments are passed to the underlying patch command.
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43 ##
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44 ## The optional return value @var{h} is a graphics handle to the hggroup
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45 ## object representing the points.
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46 ##
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47 ## @example
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48 ## @group
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49 ## [x, y, z] = peaks (20);
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50 ## scatter3 (x(:), y(:), z(:), [], z(:));
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51 ## @end group
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52 ## @end example
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53 ##
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54 ## @seealso{plot, patch, scatter}
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55 ## @end deftypefn
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56
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57 function retval = scatter3 (varargin)
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58
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59 [h, varargin, nargin] = __plt_get_axis_arg__ ("scatter3", varargin{:});
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60
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61 if (nargin < 2)
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62 print_usage ();
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63 else
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64 oldh = gca ();
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65 unwind_protect
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66 axes (h);
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67 newplot ();
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68 tmp = __scatter__ (h, 3, "scatter3", varargin{:});
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69 unwind_protect_cleanup
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70 axes (oldh);
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71 end_unwind_protect
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72 endif
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73
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74 if (! ishold ())
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75 set (h, "view", [-37.5, 30],
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76 "xgrid", "on", "ygrid", "on", "zgrid", "on");
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77 endif
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78
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79 if (nargout > 0)
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80 retval = tmp;
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81 endif
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82
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83 endfunction
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84
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85
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86 %!demo
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87 %! clf;
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88 %! [x, y, z] = peaks (20);
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89 %! scatter3 (x(:), y(:), z(:), [], z(:));
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90 %! %% Default scatter3 with constant size bubbles and color determined by Z
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92 %!demo
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93 %! clf;
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94 %! x = rand (20,1); y = rand (20,1); z = rand (20,1);
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95 %! scatter3 (x(:), y(:), z(:), 10, z(:), 's');
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96 %! %% scatter3 using a square marker of size 10 and color determined by Z
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97
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98 %!demo
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99 %! clf;
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100 %! x = rand (20,1); y = rand (20,1); z = rand (20,1);
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101 %! scatter3 (x(:), y(:), z(:), 20*z(:), [], 's');
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102 %! %% scatter3 using a square marker whose size is determined by Z
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103
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104 %!demo
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105 %! clf;
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106 %! x = rand (20,1); y = rand (20,1); z = rand (20,1);
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107 %! scatter3 (x(:), y(:), z(:), 20*z(:), z(:), 's');
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108 %! %% scatter3 using a square marker.
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109 %! %% Size and color of marker are determined by Z
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110