%DEFINITIONS_POLYGONS  One-line description here, please.
%
%   output = definitions_polygons(input)
%
%   Example
%   definitions_polygons
%
%   See also
%
 
% ------
% Author: David Legland
% e-mail: david.legland@inrae.fr
% INRAE - BIA Research Unit - BIBS Platform (Nantes)
% Created: 2022-02-14,    using Matlab 9.10.0.1739362 (R2021a) Update 5
% Copyright 2022 INRAE.

% create polygon
poly = [

% set up display
figure(1); clf; hold on;
axis equal; axis([20 230 70 230]);
