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    Metadata details:
    filename: ft_select_point3d.m
    path of file: ./repos/fecgsyn/subfunctions/data-generation/libs/fieldtrip/plotting
    
    the code of the file until where you have to start completion: function [selected] = ft_select_point3d(bnd, varargin)

% FT_SELECT_POINT3D helper function for selecting one or multiple points on a 3D mesh
% using the mouse. It returns a list of the [x y z] coordinates of the selected
% points.
%
% Use as

    
function [selected] = ft_select_point3d(bnd, varargin)

% FT_SELECT_POINT3D helper function for selecting one or multiple points on a 3D mesh
% using the mouse. It returns a list of the [x y z] coordinates of the selected
% points.
%
% Use as
%   [selected] = ft_select_point3d(bnd, ...)
%
% Optional input arguments should come in key-value pairs and can include
%   'multiple'    = true/false, make multiple selections, pressing "q" on the keyboard finalizes the selection (default = false)
%   'nearest'     = true/false (default = true)
%   'marker'      = character or empty, for example '.', 'o' or 'x' (default = [])
%   'markersize'  = scalar, the size of the marker (default = 10)
%   'markercolor' = character, for example 'r', 'b' or 'g' (default = 'k')
%
% Example
%   [pos, tri] = mesh_sphere(162);
%   bnd.pos = pos;
%   bnd.tri = tri;
%   ft_plot_mesh(bnd)
%   camlight
%   ... do something here
%
% See also FT_SELECT_BOX, FT_SELECT_CHANNEL, FT_SELECT_POINT, FT_SELECT_RANGE, FT_SELECT_VOXEL

% This file is part of FieldTrip, see http://www.fieldtriptoolbox.org
% for the documentation and details.
%
%    FieldTrip is free software: you can redistribute it and/or modify
%    it under the terms of the GNU General Public License as published by
%    the Free Software Foundation, either version 3 of the License, or
%    (at your option) any later version.
%
%    FieldTrip is distributed in the hope that it will be useful,
%    but WITHOUT ANY WARRANTY; without even the implied warranty of
%    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
%    GNU General Public License for more details.
%
%    You should have received a copy of the GNU General Public License
%    along with FieldTrip. If not, see <http://www.gnu.org/licenses/>.
%
% $Id$

% get optional input arguments
nearest     = ft_getopt(varargin, 'nearest',  true);
multiple    = ft_getopt(varargin, 'multiple', false);
marker      = ft_getopt(varargin, 'marker', []);
markersize  = ft_getopt(varargin, 'markersize', 10);
markercolor  = ft_getopt(varargin, 'markercolor', 'k');

% ensure that it is boolean
nearest  = istrue(nearest);
multiple = istrue(multiple);

% get the object handles
h = get(gca, 'children');

% select the correct objects
iscorrect = false(size(h));
for i=1:length(h)
  try
    pos = get(h(i),'vertices');
    tri = get(h(i),'faces');
    if ~isempty(bnd) && isequal(bnd.pos, pos) && isequal(bnd.tri, tri)
      % it is the same object that the user has plotted before
      iscorrect(i) = true;
    elseif isempty(bnd)
      % assume that it is the same object that the user has plotted before
      iscorrect(i) = true;
    end