https://svn.boost.org/trac10/ticket/9969 <p> For boost::geometry::intersects and boost::geometry::intersection when a polygon's interior ring touches the exterior ring both functions throw <code>boost::geometry::overlay_invalid_input_exception</code>. Example geom: POLYGON ((-89.58781362007169 48.00097751710655, -89.58781362007169 48.00065167807103, -89.5881394591072 48.00065167807103, -89.58846529814272 48.000 65167807103, -89.58846529814272 48.00032583903552, -89.5881394591072 48.00032583903552, -89.5881394591072 48, -89.58651026392963 48, -89.58651026392 963 48.00032583903552, -89.5861844248941 48.00032583903552, -89.5861844248941 48.00065167807103, -89.58683610296514 48.00065167807103, -89.586836102 96514 48.00097751710655, -89.58781362007169 48.00097751710655), (-89.58781362007169 48.00065167807103, -89.58781362007169 48.00032583903552, -89.587 16194200065 48.00032583903552, -89.58716194200065 48.00065167807103, -89.58781362007169 48.00065167807103)) </p> <p> Throws when intersecting with box,ring,polygon,multi_polygon other geometries untested </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/9969 Trac 1.4.3