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ft_select_box.m
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ft_select_box.m
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function [x, y] = ft_select_box()
% FT_SELECT_BOX helper function for selecting a single rectangular region in the
% current figure using the mouse. This function is not used as a callabck, but blocks
% the execution of the code until a selection is made.
%
% Use as
% [x, y] = ft_select_box()
%
% It returns a 2-element vector x and a 2-element vector y
% with the corners of the selected region.
%
% See also FT_SELECT_CHANNEL, FT_SELECT_POINT, FT_SELECT_POINT3D, FT_SELECT_RANGE,
% FT_SELECT_VOXEL, GINPUT, RBBOX
% Copyright (C) 2006, Robert Oostenveld
%
% This file is part of FieldTrip, see http:https://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:https://www.gnu.org/licenses/>.
%
% $Id$
drawnow
try
k = waitforbuttonpress;
point1 = get(gca, 'CurrentPoint'); % button down detected
finalRect = rbbox; % return figure units
point2 = get(gca, 'CurrentPoint'); % button up detected
point1 = point1(1,1:2); % extract x and y
point2 = point2(1,1:2);
x = sort([point1(1) point2(1)]);
y = sort([point1(2) point2(2)]);
catch
% this happens if the figure is closed
x = [];
y = [];
end