CGAL 5.0.2  2D Regularized Boolean SetOperations

Operations  
bool  operator() (ArrDirectionalTraits::X_monotone_curve_2 xc1, ArrDirectionalTraits::X_monotone_curve_2 xc2) 
accepts two \( x\)monotone curves xc1 and xc2 and determines whether they can be merged to form a single \( x\)monotone curve. More...  
bool ArrDirectionalTraits::AreMergeable_2::operator()  (  ArrDirectionalTraits::X_monotone_curve_2  xc1, 
ArrDirectionalTraits::X_monotone_curve_2  xc2  
) 
accepts two \( x\)monotone curves xc1
and xc2
and determines whether they can be merged to form a single \( x\)monotone curve.
xc1
and xc2
are mergeable if their underlying curves are identical, they share a common endpoint, and they do not bend to form a non \( x\)monotone curve.
xc1
and the source point xc2
coincide or the source point of xc2
and the target point xc2
coincide.