Indicates whether the input edges provided to S2Builder are directed or
undirected.
Directed edges should be used whenever possible to avoid ambiguity.
The implementation attempts to preserve the structure of directed input
edges whenever possible, so that if the input is a vector of disjoint
polylines and none of them need to be modified then the output will be
the same polylines in the same order. With undirected edges, there are
no such guarantees.
Indicates whether the input edges provided to S2Builder are directed or undirected.
Directed edges should be used whenever possible to avoid ambiguity. The implementation attempts to preserve the structure of directed input edges whenever possible, so that if the input is a vector of disjoint polylines and none of them need to be modified then the output will be the same polylines in the same order. With undirected edges, there are no such guarantees.
DEFAULT: S2Builder::EdgeType::DIRECTED