id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
12125,Another problems performing boolean operations on polygons with shared edges,ev.mipt@…,Barend Gehrels,"Trying to solve problems with union_ operation on mpolygons with shared edges (https://svn.boost.org/trac/boost/ticket/12118) with help of boost 1.61.0 beta.
But instead of getting problems with zero areas, I'm getting really wrong result.

For example

currentPath[[BR]]
MULTIPOLYGON(((-5.96064376831054687500 -17.19871711730957031250,7.83307075500488281250 -32.98977279663085937500,8.81292819976806640625 -34.11151504516601562500,19.66869926452636718750 -14.42036247253417968750,-5.96064376831054687500 -17.19871711730957031250)),((-14.87041568756103515625 -6.99879980087280273438,-16.12161636352539062500 -18.30021858215332031250,-5.96064376831054687500 -17.19871711730957031250,-14.87041568756103515625 -6.99879980087280273438)))

appended Polygon[[BR]]
MULTIPOLYGON(((7.83307075500488281250 -32.98977279663085937500,8.81292819976806640625 -34.11151504516601562500,13.00057315826416015625 -33.85240554809570312500,7.83307075500488281250 -32.98977279663085937500)),((-22.50806808471679687500 -27.92480468750000000000,7.83307075500488281250 -32.98977279663085937500,-14.87041568756103515625 -6.99879980087280273438,-22.50806808471679687500 -27.92480468750000000000)))

Union result (same as currentPath, appended Polygon was totally ignored)[[BR]]
MULTIPOLYGON(((-5.96064376831054687500 -17.19871711730957031250,7.83307075500488281250 -32.98977279663085937500,8.81292819976806640625 -34.11151504516601562500,19.66869926452636718750 -14.42036247253417968750,-5.96064376831054687500 -17.19871711730957031250)),((-14.87041568756103515625 -6.99879980087280273438,-16.12161636352539062500 -18.30021858215332031250,-5.96064376831054687500 -17.19871711730957031250,-14.87041568756103515625 -6.99879980087280273438)))",Bugs,assigned,Boost 1.63.0,geometry,Boost 1.61.0,Problem,,union multipolygon sharededge,