Enum that defines how to interpret the interval of a line segment.
It can either be Closed, meaning that endpoints are included [p1, p2]
OpenStart meaning half open, start is excluded (p1, p2]
OpenEnd meaning half open, end is excluded [p1, p2)
or Open meaning that start and end are excluded (p1, p2).
Enum that defines how to interpret the interval of a line segment. It can either be Closed, meaning that endpoints are included [p1, p2] OpenStart meaning half open, start is excluded (p1, p2] OpenEnd meaning half open, end is excluded [p1, p2) or Open meaning that start and end are excluded (p1, p2).