octave-lyh: scripts/plot/surf.m annotate

annotate scripts/plot/surf.m @ 17280:8ce6cdd272eb

Support TeX elements in FreeType renderer. * libinterp/corefcn/txt-eng.cc: New file. Contains mapping from symbol name to character code, in Unicode and MS symbol. * libinterp/corefcn/modules.mk (COREFCN_SRC): Add txt-eng.cc. * libinterp/corefcn/oct-tex-lexer.ll: Add "\n" to rules applicable to ".", as the latter does not include new line characters. * libinterp/corefcn/oct-tex-parser.yy: Remove debug statements. * libinterp/corefcn/txt-eng.ft.cc (gripe_missing_glyph, gripe_glyph_render): Change signature from char to FT_ULong. (ft_render::ft_render): Adapt to new/removed members. (ft_render::~ft_render): Remove use of fonts member. (ft_render::set_font): Likewise. Use font instead. (ft_render::push_new_line): Likewise. Change meaning of yoffset and initialize line_yoffset. (ft_render::update_line_bbox): New method. (ft_render::set_mode): Change meaning of yoffset and initialize line_yoffset. (ft_render::process_character): New method. (ft_render::visit(text_element_string)): Use it. (ft_render::visit(text_element_list), ft_render::visit(text_element_subscript), ft_render::visit(text_element_superscript), ft_render::visit(text_element_color), ft_render::visit(text_element_fontsize), ft_render::visit(text_element_fontname), ft_render::visit(text_element_fontstyle), ft_render::visit(text_element_symbol)): New methods. (ft_render::set_color): Use color member instead of red/green/blue. * libinterp/corefcn/txt-eng-ft.h (ft_render::visit(text_element_list), ft_render::visit(text_element_subscript), ft_render::visit(text_element_superscript), ft_render::visit(text_element_color), ft_render::visit(text_element_fontsize), ft_render::visit(text_element_fontname), ft_render::visit(text_element_fontstyle), ft_render::visit(text_element_symbol)): New methods. (ft_render::update_line_bbox, ft_render::process_character): New methods. (ft_render::current_face): Removed method.i (ft_render::font): New member, replaces obsolete ft_render::fonts. (ft_render::line_yoffset): New member. (ft_render::color): New member, replaces obsolete red, green and blue. (ft_render::ft_font::ft_font()): Implement default constructor. (ft_render::ft_font::operator=): Fix incorrect use of FT_Reference_Face return value. (ft_render::ft_font::is_valid): New method. * libinterp/corefcn/txt-eng.h (class text_element_symbol, class text_element_fontname, class text_element_fontsize, class text_element_fontname, class text_element_fontstyle, class text_element_color): Add forward definition. (text_element_symbol::invalid_code): New enum. (text_element_symbol::code): New member. (text_element_symbol::text_element_symbol): Initialize it. (text_element_symbol::get_symbol_code): New method. (text_element_fontstyle::get_fontstyle): New method. (text_element_fontname::get_fontname): Renamed from fontname. (text_element_fontsize::get_fontsize): Renamed from fontsize.

author	Michael Goffioul <michael.goffioul@gmail.com>
date	Sun, 18 Aug 2013 16:36:46 -0400
parents	87ba70043bfc
children	bc924baa2c4e

rev	line source
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 14092 diff changeset	1 ## Copyright (C) 2007-2012 Kai Habel
7109 5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	2 ##
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	3 ## This file is part of Octave.
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	4 ##
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	6 ## under the terms of the GNU General Public License as published by
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	7 ## the Free Software Foundation; either version 3 of the License, or (at
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	8 ## your option) any later version.
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	9 ##
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	13 ## General Public License for more details.
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	14 ##
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	15 ## You should have received a copy of the GNU General Public License
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	16 ## along with Octave; see the file COPYING. If not, see
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	17 ## <http://www.gnu.org/licenses/>.
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	18
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	19 ## -- texinfo --
11563 3c6e8aaa9555 Grammarcheck m-files before 3.4 release. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	20 ## @deftypefn {Function File} {} surf (@var{x}, @var{y}, @var{z})
11101 1f9ab076f5f7 Include the 4 input (color) in the docstrings for mesh() and surf(). Ben Abbott <bpabbott@mac.com> parents: 10549 diff changeset	21 ## @deftypefnx {Function File} {} surf (@var{z})
1f9ab076f5f7 Include the 4 input (color) in the docstrings for mesh() and surf(). Ben Abbott <bpabbott@mac.com> parents: 10549 diff changeset	22 ## @deftypefnx {Function File} {} surf (@dots{}, @var{c})
17126 eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	23 ## @deftypefnx {Function File} {} surf (@dots{}, @var{prop}, @var{val}, @dots{})
11101 1f9ab076f5f7 Include the 4 input (color) in the docstrings for mesh() and surf(). Ben Abbott <bpabbott@mac.com> parents: 10549 diff changeset	24 ## @deftypefnx {Function File} {} surf (@var{hax}, @dots{})
11563 3c6e8aaa9555 Grammarcheck m-files before 3.4 release. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	25 ## @deftypefnx {Function File} {@var{h} =} surf (@dots{})
17126 eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	26 ## Plot a 3-D surface mesh.
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	27 ##
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	28 ## The surface mesh is plotted using shaded rectangles. The vertices of the
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	29 ## rectangles [@var{x}, @var{y}] are typically the output of @code{meshgrid}.
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	30 ## over a 2-D rectangular region in the x-y plane. @var{z} determines the
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	31 ## height above the plane of each vertex. If only a single @var{z} matrix is
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	32 ## given, then it is plotted over the meshgrid
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	33 ## @code{@var{x} = 1:columns (@var{z}), @var{y} = 1:rows (@var{z})}.
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	34 ## Thus, columns of @var{z} correspond to different @var{x} values and rows
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	35 ## of @var{z} correspond to different @var{y} values.
11101 1f9ab076f5f7 Include the 4 input (color) in the docstrings for mesh() and surf(). Ben Abbott <bpabbott@mac.com> parents: 10549 diff changeset	36 ##
17126 eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	37 ## The color of the surface is computed by linearly scaling the @var{Z} values
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	38 ## to fit the range of the current colormap. Use @code{caxis} and/or
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	39 ## change the colormap to control the appearance.
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	40 ##
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	41 ## Optionally, the color of the surface can be specified independently of
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	42 ## @var{z} by supplying a color matrix, @var{c}.
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	43 ##
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	44 ## Any property/value pairs are passed directly to the underlying surface
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	45 ## object.
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	46 ##
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	47 ## If the first argument @var{hax} is an axes handle, then plot into this axis,
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	48 ## rather than the current axes returned by @code{gca}.
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	49 ##
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	50 ## The optional return value @var{h} is a graphics handle to the created
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	51 ## surface object.
17126 eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	52 ##
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	53 ## Note: The exact appearance of the surface can be controlled with the
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	54 ## @code{shading} command or by using @code{set} to control surface object
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	55 ## properties.
eaab03308c0b doc: Rewrite docstrings for most plot functions. Rik <rik@octave.org> parents: 17125 diff changeset	56 ## @seealso{ezsurf, surfc, surfl, surfnorm, trisurf, contour, mesh, surface, meshgrid, hidden, shading, colormap, caxis}
7109 5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	57 ## @end deftypefn
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	58
7110 0e63f1126f01 [project @ 2007-11-06 22:36:22 by jwe] jwe parents: 7109 diff changeset	59 ## Author: Kai Habel <kai.habel@gmx.de>
7109 5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	60
7216 5389a52df87b [project @ 2007-11-29 19:07:29 by jwe] jwe parents: 7215 diff changeset	61 function retval = surf (varargin)
7109 5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	62
17052 1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	63 [hax, varargin] = __plt_get_axis_arg__ ("surf", varargin{:});
7109 5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	64
17219 87ba70043bfc Don't use ifelse in plot fcns to avoid unnecessary fcn evaluations. Rik <rik@octave.org> parents: 17198 diff changeset	65 oldfig = [];
87ba70043bfc Don't use ifelse in plot fcns to avoid unnecessary fcn evaluations. Rik <rik@octave.org> parents: 17198 diff changeset	66 if (isempty (hax))
87ba70043bfc Don't use ifelse in plot fcns to avoid unnecessary fcn evaluations. Rik <rik@octave.org> parents: 17198 diff changeset	67 oldfig = get (0, "currentfigure");
87ba70043bfc Don't use ifelse in plot fcns to avoid unnecessary fcn evaluations. Rik <rik@octave.org> parents: 17198 diff changeset	68 endif
7215 dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe] jwe parents: 7146 diff changeset	69 unwind_protect
17052 1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	70 hax = newplot (hax);
1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	71
1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	72 htmp = surface (varargin{:});
7110 0e63f1126f01 [project @ 2007-11-06 22:36:22 by jwe] jwe parents: 7109 diff changeset	73
17052 1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	74 if (! ishold (hax))
1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	75 set (hax, "view", [-37.5, 30],
17130 26589abbc78d Don't pass axis handle unnecessarily from high level to low level plot functions. Rik <rik@octave.org> parents: 17126 diff changeset	76 "xgrid", "on", "ygrid", "on", "zgrid", "on");
7215 dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe] jwe parents: 7146 diff changeset	77 endif
17130 26589abbc78d Don't pass axis handle unnecessarily from high level to low level plot functions. Rik <rik@octave.org> parents: 17126 diff changeset	78
7215 dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe] jwe parents: 7146 diff changeset	79 unwind_protect_cleanup
17052 1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	80 if (! isempty (oldfig))
1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	81 set (0, "currentfigure", oldfig);
1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	82 endif
7215 dd88d61d443f [project @ 2007-11-29 16:44:45 by jwe] jwe parents: 7146 diff changeset	83 end_unwind_protect
7110 0e63f1126f01 [project @ 2007-11-06 22:36:22 by jwe] jwe parents: 7109 diff changeset	84
7109 5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	85 if (nargout > 0)
17052 1118d566bcd4 surf.m, surfc.m, surfl.m, surfnorm.m: Update to use new __plt_get_axis_arg__. Pantxo Diribarne <pantxo.diribarne@gmail.com> parents: 14247 diff changeset	86 retval = htmp;
7109 5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	87 endif
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	88
5436efbf35e3 [project @ 2007-11-06 22:16:25 by jwe] jwe parents: diff changeset	89 endfunction
12812 4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	90
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	91
12812 4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	92 %!demo
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	93 %! clf;
14247 c4fa5e0b6193 test: Make surface demos reproducible by setting colormap to default at start of demo. Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	94 %! colormap ('default');
17125 d4549655b92e Rephrase %!tests to take advantage of single output form of peaks(). Rik <rik@octave.org> parents: 17124 diff changeset	95 %! Z = peaks ();
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	96 %! surf (Z);
17198 df4c4b7708a4 Add titles and clean-up plotting %!demos. Rik <rik@octave.org> parents: 17130 diff changeset	97 %! title ({'surf() plot of peaks() function'; 'color determined by height Z'});
12812 4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	98
4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	99 %!demo
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	100 %! clf;
14247 c4fa5e0b6193 test: Make surface demos reproducible by setting colormap to default at start of demo. Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	101 %! colormap ('default');
17124 a639221f9863 sombrero.m: Overhaul documentation and make calling forms equivalent to peaks() Rik <rik@octave.org> parents: 17052 diff changeset	102 %! Z = sombrero ();
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	103 %! [Fx,Fy] = gradient (Z);
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	104 %! surf (Z, Fx+Fy);
12812 4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	105 %! shading interp;
17198 df4c4b7708a4 Add titles and clean-up plotting %!demos. Rik <rik@octave.org> parents: 17130 diff changeset	106 %! title ({'surf() plot of peaks() function'; ...
df4c4b7708a4 Add titles and clean-up plotting %!demos. Rik <rik@octave.org> parents: 17130 diff changeset	107 %! 'facecolor is interpolated, color determined by gradient of Z'});
12812 4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	108
4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	109 %!demo
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	110 %! clf;
14247 c4fa5e0b6193 test: Make surface demos reproducible by setting colormap to default at start of demo. Rik <octave@nomad.inbox5.com> parents: 14237 diff changeset	111 %! colormap ('default');
14237 11949c9795a0 Revamp %!demos in m-files to use Octave coding conventions on spacing, etc. Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	112 %! [X,Y,Z] = sombrero ();
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	113 %! [~,Fy] = gradient (Z);
5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	114 %! surf (X, Y, Z, Fy);
12812 4c93cc41da15 codesprint: add demo for surf.m and surfc.m Kai Habel <kai.habel@gmx.de> parents: 11575 diff changeset	115 %! shading interp;
17198 df4c4b7708a4 Add titles and clean-up plotting %!demos. Rik <rik@octave.org> parents: 17130 diff changeset	116 %! title ({'surf() plot of peaks() function'; ...
df4c4b7708a4 Add titles and clean-up plotting %!demos. Rik <rik@octave.org> parents: 17130 diff changeset	117 %! 'facecolor is interpolated, color determined by Y-gradient of Z'});
14001 5f0bb45e615c doc: Update documentation for functions returning a graphics handle h (Bug #34761) Rik <octave@nomad.inbox5.com> parents: 12812 diff changeset	118

Mercurial > hg > octave-lyh

annotate scripts/plot/surf.m @ 17280:8ce6cdd272eb