changelog shortlog tags changeset files revisions annotate raw

scripts/plot/hidden.m

changeset 10289: 4b124317dc38
parent:eb63fbe60fab
author: John W. Eaton <jwe@octave.org>
date: Tue Feb 09 20:58:55 2010 -0500 (38 minutes ago)
permissions: -rw-r--r--
description: base_properties::set_children: account for hidden children 
     1## Copyright (C) 2007, 2008, 2009 Michael Goffioul

     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} {} hidden (@var{mode})

    21## @deftypefnx {Function File} {} hidden ()

    22## Manipulation the mesh hidden line removal.  Called with no argument

    23## the hidden line removal is toggled.  The argument @var{mode} can be either

    24## 'on' or 'off' and the set of the hidden line removal is set accordingly.

    25## @seealso{mesh, meshc, surf}

    26## @end deftypefn

    27

    28function retval = hidden (mode)

    29

    30  if (nargin == 0)

    31    mode = "swap";

    32  elseif (nargin == 1);

    33    if (ischar (mode))

    34      mode = tolower (mode);

    35      if (! strcmp (mode, "on") && ! strcmp (mode, "off"))

    36	error ("hidden: mode expected to be 'on' or 'off'");

    37      endif

    38    else

    39      error ("hidden: expecting mode to be a string");

    40    endif

    41  else

    42    print_usage ();

    43  endif

    44

    45  for h = get (gca (), "children");

    46    htype = lower (get (h, "type"));

    47    if (strcmp (htype, "surface"))

    48      fc = get (h, "facecolor");

    49      if ((! ischar (fc) && is_white (fc))

    50	  || (ischar (fc) && strcmpi (fc, "none")))

    51        switch (mode)

    52        case "on"

    53          set (h, "facecolor", "w");

    54        case "off"

    55          set (h, "facecolor", "none");

    56        case "swap"

    57          if (ischar (fc))

    58            set (h, "facecolor", "w");

    59	    mode = "on";

    60          else

    61            set (h, "facecolor", "none");

    62	    mode = "off";

    63          endif

    64        endswitch

    65      endif

    66    endif

    67  endfor

    68

    69  if (nargout > 0)

    70    retval = mode;

    71  endif

    72

    73endfunction

    74

    75function retval = is_white (color)

    76  retval = all (color == 1);

    77endfunction