Mercurial > hg > octave-lyh
comparison scripts/plot/__patch__.m @ 6807:0089a504fdd6
[project @ 2007-08-10 17:34:59 by jwe]
| author | jwe |
|---|---|
| date | Fri, 10 Aug 2007 17:34:59 +0000 |
| parents | |
| children | 987a7bf45c99 |
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| 6806:afa9123c5faa | 6807:0089a504fdd6 |
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| 1 ## Copyright (C) 2007 John W. Eaton, Shai Ayal, Kai Habel | |
| 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 2, or (at your option) | |
| 8 ## 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, write to the Free | |
| 17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
| 18 ## 02110-1301, USA. | |
| 19 | |
| 20 ## -*- texinfo -*- | |
| 21 ## @deftypefn {Function File} {} __patch__ (@var{p}, @var{x}, @var{y}, @var{c}) | |
| 22 ## Create patch object from @var{x} and @var{y} with color @var{c} and parent @var{p}. | |
| 23 ## Return handle to patch object. | |
| 24 ## @end deftypefn | |
| 25 | |
| 26 ## Author: Kai Habel | |
| 27 | |
| 28 function h = __patch__ (p, varargin) | |
| 29 | |
| 30 if (nargin < 1) | |
| 31 print_usage (); | |
| 32 endif | |
| 33 | |
| 34 nvargs = numel (varargin); | |
| 35 | |
| 36 if (nvargs > 1 && isnumeric (varargin{1}) && isnumeric (varargin{2})) | |
| 37 num_data_args = 2; | |
| 38 else | |
| 39 num_data_args = 0; | |
| 40 endif | |
| 41 | |
| 42 if (rem (nvargs - num_data_args - 1, 2) == 0 && nvargs > 2) | |
| 43 else | |
| 44 print_usage ("patch"); | |
| 45 endif | |
| 46 | |
| 47 x = varargin{1}; | |
| 48 y = varargin{2}; | |
| 49 c = varargin{3}; | |
| 50 | |
| 51 h = __go_patch__ (p); | |
| 52 ax = get (h, "parent"); | |
| 53 if (num_data_args > 1) | |
| 54 set (h, "xdata", x, "ydata", y); | |
| 55 endif | |
| 56 | |
| 57 if (isstr (c)) | |
| 58 ## Have color string. | |
| 59 set (h, "FaceColor", c); | |
| 60 elseif (length (c) == 1) | |
| 61 if (isnan (c)) | |
| 62 set (h, "FaceColor", [1, 1, 1]); | |
| 63 set (h, "CData", c); | |
| 64 elseif (isnumeric (c)) | |
| 65 ## Have color index. | |
| 66 set (h, "FaceColor", "flat"); | |
| 67 set (h, "CData", c); | |
| 68 | |
| 69 clim = get(ax, "CLim"); | |
| 70 if (c < clim(1)) | |
| 71 set (ax, "CLim", [c, clim(2)]) | |
| 72 endif | |
| 73 if (c > clim(2)) | |
| 74 set (ax, "CLim", [clim(1), c]) | |
| 75 end | |
| 76 | |
| 77 else | |
| 78 ## Unknown color value. | |
| 79 error ("color value not valid"); | |
| 80 end | |
| 81 elseif (length (c) == 3) | |
| 82 ## Have rgb/rgba value. | |
| 83 set (h, "FaceColor", c); | |
| 84 else | |
| 85 ## Color vector. | |
| 86 if (length (c) != length (x) || length (c) != length (y)) | |
| 87 error ("size of x, y, and c must be equal") | |
| 88 else | |
| 89 set (h, "FaceColor", "interp"); | |
| 90 set(h, "CData", c); | |
| 91 if (abs(max(c) - min(c)) < eps) | |
| 92 set (ax, "CLim", [c(1)-1, c(1)+1]) | |
| 93 else | |
| 94 set (ax, "CLim", [min(c), max(c)]); | |
| 95 end | |
| 96 end | |
| 97 end | |
| 98 | |
| 99 if (nvargs > num_data_args + 1) | |
| 100 set (h, varargin{num_data_args+2:end}); | |
| 101 endif | |
| 102 | |
| 103 endfunction |