example1 - (do_intersect) Determining whether two polygons intersect. example2 - (intersection) Computing the intersection of two triangles. example3 - (sequence) Computing a sequence of Boolean Set-Operations. example4 - (circle_segment) Handling circles and linear segments concurrently. example5 - (traits_adaptor) Using the traits adaptor. example6 - (set_union) Computing the union of two sets of general polygons.