getClosed.m
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			function is_closed = getClosed(obj)
			% GETCLOSED returns whether the polygon is closed or not.
			%
			% BOOL = getClosed(POLY) returns BOOL defining whether the
			% IMPOLY polygon POLY is closed or not.
			% BOOL = POLY.getClosed() subsref for of the same call.
			%
			% Simon Blanchoud
			% University of Fribourg
			% 01.10.18

			% Make sure that the graphic object still exists
			if (~ishandle(obj.hPolygon))
			error('impoly:invalidObject', 'impoly graphic object deleted.');
			end

			% Retrieve the data and the status of the polygon
			data = get(obj.hPolygon, 'userdata');
			is_closed = data.is_closed;

			return;
			end

SiBoRG/image_analysis/@impoly/getClosed.m96e7368ff315master