ConvexHullTraits_2::Point_2 | |
The point type on which the convex hull functions operate.
| |
ConvexHullTraits_2::Less_xy_2 | |
Binary predicate object type comparing Point_2s
lexicographically. Must provide
bool operator()(Point_2 p, Point_2 q) where true
is returned iff p <xy q.
We have p<xyq, iff px < qx or px = qx and py < qy,
where px and py denote x and y coordinate of point p,
respectively.
| |
ConvexHullTraits_2::Left_turn_2 | |
Predicate object type that must provide
bool operator()(Point_2 p,Point_2 q,Point_2 r), which
returns true iff r lies to the left of the
oriented line through p and q.
|
Only a copy constructor is required.
ConvexHullTraits_2 traits ( & t); |
Less_xy_2 | traits.less_xy_2_object () | |
Left_turn_2 | traits.left_turn_2_object () |