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## Copyright (C) 2024 David Legland
## All rights reserved.
##
## Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are met:
##
## 1 Redistributions of source code must retain the above copyright notice,
## this list of conditions and the following disclaimer.
## 2 Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in the
## documentation and/or other materials provided with the distribution.
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS''
## AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
## IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
## ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
## ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
## DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
## SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
## CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
##
## The views and conclusions contained in the software and documentation are
## those of the authors and should not be interpreted as representing official
## policies, either expressed or implied, of the copyright holders.
function poly = boxToPolygon(box)
%BOXTOPOLYGON Convert a bounding box to a square polygon.
%
% poly = boxToPolygon(box)
% Utility function that convert box data in [XMIN XMAX YMIN YMAX] format
% to polygon data corresponding to the box boundary. The resulting POLY
% is a 4-by-2 array.
%
%
% Example
% box = [ 10 50 20 40];
% poly = boxToPolygon(box)
% poly =
% 10 20
% 50 20
% 50 40
% 10 40
%
% See also
% boxes2d, polygons2d, boxToRect
% ------
% Author: David Legland
% E-mail: david.legland@inrae.fr
% Created: 2017-09-10, using Matlab 8.6.0.267246 (R2015b)
% Copyright 2017-2023 INRA - Cepia Software Platform
% extreme coordinates
xmin = box(1);
xmax = box(2);
ymin = box(3);
ymax = box(4);
% convert to polygon
poly = [...
xmin ymin; ...
xmax ymin; ...
xmax ymax; ...
xmin ymax];
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