Mercurial > hg > octave-nkf
annotate scripts/plot/plotyy.m @ 8102:c066714ee5d5
undo previous change
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 11 Sep 2008 17:01:46 -0400 |
| parents | 86955a1559c5 |
| children | f6ca8ff51818 |
| rev | line source |
|---|---|
| 7195 | 1 ## Copyright (C) 2007 David Bateman |
| 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 | |
| 7 ## the Free Software Foundation; either version 3 of the License, or (at | |
| 8 ## your option) any later version. | |
| 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 | |
| 16 ## along with Octave; see the file COPYING. If not, see | |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 ## -*- texinfo -*- | |
| 20 ## @deftypefn {Function File} {} plotyy (@var{x1}, @var{y1}, @var{x2}, @var{y2}) | |
| 21 ## @deftypefnx {Function File} {} plotyy (@dots{}, @var{fun}) | |
| 22 ## @deftypefnx {Function File} {} plotyy (@dots{}, @var{fun1}, @var{fun2}) | |
| 23 ## @deftypefnx {Function File} {} plotyy (@var{h}, @dots{}) | |
| 24 ## @deftypefnx {Function File} {[@var{ax}, @var{h1}, @var{h2}] =} plotyy (@dots{}) | |
| 25 ## Plots two sets of data with independent y-axes. The arguments @var{x1} and | |
| 26 ## @var{y1} define the arguments for the first plot and @var{x1} and @var{y2} | |
| 27 ## for the second. | |
| 28 ## | |
| 29 ## By default the arguments are evaluated with | |
| 30 ## @code{feval (@@plot, @var{x}, @var{y})}. However the type of plot can be | |
| 31 ## modified with the @var{fun} argument, in which case the plots are | |
| 32 ## generated by @code{feval (@var{fun}, @var{x}, @var{y})}. @var{fun} can be | |
| 33 ## a function handle, an inline function or a string of a function name. | |
| 34 ## | |
| 35 ## The function to use for each of the plots can be independently defined | |
| 36 ## with @var{fun1} and @var{fun2}. | |
| 37 ## | |
| 38 ## If given, @var{h} defines the principal axis in which to plot the @var{x1} | |
| 39 ## and @var{y1} data. The return value @var{ax} is a two element vector with | |
| 40 ## the axis handles of the two plots. @var{h1} and @var{h2} are handles to | |
| 41 ## the objects generated by the plot commands. | |
| 42 ## | |
| 43 ## @example | |
| 44 ## @group | |
| 45 ## x = 0:0.1:2*pi; | |
| 46 ## y1 = sin (x); | |
| 7196 | 47 ## y2 = exp (x - 1); |
| 48 ## ax = plotyy (x, y1, x - 1, y2, @@plot, @@semilogy); | |
| 7195 | 49 ## xlabel ("X"); |
| 50 ## ylabel (ax(1), "Axis 1"); | |
| 51 ## ylabel (ax(2), "Axis 2"); | |
| 52 ## @end group | |
| 53 ## @end example | |
| 54 ## @end deftypefn | |
| 55 | |
| 56 function [Ax, H1, H2] = plotyy (varargin) | |
| 57 | |
|
7665
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
58 ## Don't use __plt_get_axis_arg__ here as ax is a two vector for plotyy |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
59 if (nargin > 1 && length (varargin{1}) == 2 && ishandle(varargin{1}(1)) |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
60 && ishandle(varargin{1}(2)) && |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
61 all (floor (varargin{1}) != varargin{1})) |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
62 obj1 = get (varargin{1}(1)); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
63 obj2 = get (varargin{1}(2)); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
64 if (strcmp (obj1.type, "axes") || strcmp (obj2.type, "axes")) |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
65 ax = [obj1, obj2]; |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
66 varargin(1) = []; |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
67 if (isempty (varargin)) |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
68 varargin = {}; |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
69 endif |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
70 else |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
71 error ("plotyy: expecting first argument to be axes handle"); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
72 endif |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
73 else |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
74 f = get (0, "currentfigure"); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
75 if (isempty (f)) |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
76 ax(1) = axes (); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
77 ax(2) = axes (); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
78 else |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
79 ax = get (f, "children"); |
| 8102 | 80 for i = 3 : length (ax) |
| 81 delete (ax (i)); | |
| 82 endfor | |
| 83 ax = ax(1:2); | |
|
7665
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
84 endif |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
85 if (nargin < 2) |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
86 varargin = {}; |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
87 endif |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
88 endif |
| 7215 | 89 |
| 90 if (nargin < 4) | |
| 91 print_usage (); | |
| 92 endif | |
| 7216 | 93 |
| 7215 | 94 oldh = gca (); |
| 95 unwind_protect | |
| 96 [ax, h1, h2] = __plotyy__ (ax, varargin{:}); | |
| 97 unwind_protect_cleanup | |
| 98 axes (oldh); | |
| 99 end_unwind_protect | |
| 7195 | 100 |
| 101 if (nargout > 0) | |
| 102 Ax = ax; | |
| 103 H1 = h1; | |
| 104 H2 = h2; | |
| 105 endif | |
| 7196 | 106 |
| 7195 | 107 endfunction |
| 108 | |
| 109 function [ax, h1, h2] = __plotyy__ (ax, x1, y1, x2, y2, varargin) | |
| 110 if (nargin > 5) | |
| 111 fun1 = varargin{1}; | |
| 112 else | |
| 113 fun1 = @plot; | |
| 114 endif | |
| 115 if (nargin > 6) | |
| 116 fun2 = varargin{2}; | |
| 117 else | |
| 118 fun2 = fun1; | |
| 119 endif | |
| 120 | |
| 121 xlim = [min([x1(:); x2(:)]), max([x1(:); x2(:)])]; | |
| 122 | |
|
7665
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
123 axes (ax(1)); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
124 newplot (); |
| 7195 | 125 h1 = feval (fun1, x1, y1); |
| 7220 | 126 |
| 127 set (ax(1), "ycolor", getcolor (h1(1))); | |
| 8102 | 128 set (ax(1), "position", [0.11 0.13 0.78 0.73]); |
| 129 set (ax(1), "activepositionproperty", "position"); | |
| 7195 | 130 set (ax(1), "xlim", xlim); |
| 131 | |
| 132 cf = gcf (); | |
| 133 set (cf, "nextplot", "add"); | |
|
7665
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
134 axes (ax(2)); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
135 newplot (); |
|
aead4b9d026b
Fix axis handle treatment in plotyy
David Bateman <dbateman@free.fr>
parents:
7314
diff
changeset
|
136 |
| 7195 | 137 colors = get (ax(1), "colororder"); |
| 138 set (ax(2), "colororder", [colors(2:end,:); colors(1,:)]); | |
| 139 | |
| 140 h2 = feval (fun2, x2, y2); | |
| 7206 | 141 set (ax(2), "yaxislocation", "right"); |
| 7220 | 142 set (ax(2), "ycolor", getcolor (h2(1))); |
| 7240 | 143 set (ax(2), "position", get (ax(1), "position")); |
| 8102 | 144 set (ax(2), "activepositionproperty", "position"); |
| 7195 | 145 set (ax(2), "xlim", xlim); |
| 7240 | 146 set (ax(2), "color", "none"); |
| 7195 | 147 endfunction |
| 7220 | 148 |
| 149 function color = getcolor (ax) | |
| 150 obj = get (ax); | |
| 151 if (isfield (obj, "color")) | |
| 152 color = obj.color; | |
| 153 elseif (isfield (obj, "facecolor") && ! ischar (obj.facecolor)) | |
| 154 color = obj.facecolor; | |
| 155 elseif (isfield (obj, "edgecolor") && ! ischar (obj.edgecolor)) | |
| 156 color = obj.edgecolor; | |
| 157 else | |
| 158 color = [0, 0, 0]; | |
| 159 endif | |
| 160 endfunction | |
| 7245 | 161 |
| 8102 | 162 %!demo |
| 163 %! x = 0:0.1:2*pi; | |
| 164 %! y1 = sin (x); | |
| 165 %! y2 = exp (x - 1); | |
| 166 %! ax = plotyy (x, y1, x - 1, y2, @plot, @semilogy); | |
| 167 %! xlabel ("X"); | |
| 168 %! ylabel (ax(1), "Axis 1"); | |
| 169 %! ylabel (ax(2), "Axis 2"); |