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diff --git a/inst/polygons2d/polygonContains.m b/inst/polygons2d/polygonContains.m
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--- a/inst/polygons2d/polygonContains.m
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-## Copyright (C) 2004-2016 David Legland <david.legland@grignon.inra.fr>
-## Copyright (C) 2004-2016 INRA - CEPIA Nantes - MIAJ (Jouy-en-Josas)
-## Copyright (C) 2016 Adapted to Octave by Juan Pablo Carbajal <ajuanpi+dev@gmail.com>
-## 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.
-
-%POLYGONCONTAINS Test if a point is contained in a multiply connected polygon
-%
-%   B = polygonContains(POLYGON, POINT);
-%   Returns TRUE if the (possibly multi-connected) polygon POLYGON contains
-%   the point(s) given by POINT.
-%   This is an extension of the Matlab function inpolygon for the case of
-%   polygons with holes.
-%
-%   Example
-%   POLY = [0 0; 10 0;10 10;0 10;NaN NaN;3 3;3 7;7 7;7 3];
-%   PT = [5 1;5 4];
-%   polygonContains(POLY, PT);
-%   ans =
-%        1
-%        0
-%
-%   See also
-%   polygons2d, inpolygon, isPointInPolygon
-
-% ------
-% Author: David Legland
-% e-mail: david.legland@grignon.inra.fr
-% Created: 2007-10-11,    using Matlab 7.4.0.287 (R2007a)
-% Copyright 2007 INRA - BIA PV Nantes - MIAJ Jouy-en-Josas.
-
-function varargout = polygonContains(poly, point)
-
-  % transform as a cell array of simple polygons
-  polygons = splitPolygons(poly);
-  N = length(polygons);
-  Np = size(point, 1);
-
-  % compute orientation of polygon, and format to have Np*N matrix
-  areas = zeros(N, 1);
-  for i = 1:N
-      areas(i) = polygonArea(polygons{i});
-  end
-  ccw = areas > 0;
-  ccw = repmat(ccw', Np, 1);
-
-  % test if point inside each polygon
-  in = false(size(point, 1), N);
-  for i = 1:N
-      poly = polygons{i};
-      in(:, i) = inpolygon(point(:,1), point(:,2), poly(:,1), poly(:,2));
-  end
-
-  % count polygons containing point, weighted by polygon orientation
-  res = sum(in.*(ccw==1) - in.*(ccw==0), 2);
-
-  varargout{1} = res;
-
-endfunction